CVE-2026-23401

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE (if it's shadow-present). While commit a54aa15c6bda3 was right about it being impossible to convert a shadow-present SPTE to an MMIO SPTE due to a guest write, it failed to account for writes to guest memory that are outside the scope of KVM. E.g. if host userspace modifies a shadowed gPTE to switch from a memslot to emulted MMIO and then the guest hits a relevant page fault, KVM will install the MMIO SPTE without first zapping the shadow-present SPTE. ------------[ cut here ]------------ is_shadow_present_pte(*sptep) WARNING: arch/x86/kvm/mmu/mmu.c:484 at mark_mmio_spte+0xb2/0xc0 [kvm], CPU#0: vmx_ept_stale_r/4292 Modules linked in: kvm_intel kvm irqbypass CPU: 0 UID: 1000 PID: 4292 Comm: vmx_ept_stale_r Not tainted 7.0.0-rc2-eafebd2d2ab0-sink-vm #319 PREEMPT Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:mark_mmio_spte+0xb2/0xc0 [kvm] Call Trace: <TASK> mmu_set_spte+0x237/0x440 [kvm] ept_page_fault+0x535/0x7f0 [kvm] kvm_mmu_do_page_fault+0xee/0x1f0 [kvm] kvm_mmu_page_fault+0x8d/0x620 [kvm] vmx_handle_exit+0x18c/0x5a0 [kvm_intel] kvm_arch_vcpu_ioctl_run+0xc55/0x1c20 [kvm] kvm_vcpu_ioctl+0x2d5/0x980 [kvm] __x64_sys_ioctl+0x8a/0xd0 do_syscall_64+0xb5/0x730 entry_SYSCALL_64_after_hwframe+0x4b/0x53 RIP: 0033:0x47fa3f </TASK> ---[ end trace 0000000000000000 ]---

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

apparmor: fix unprivileged local user can do privileged policy management

An unprivileged local user can load, replace, and remove profiles by opening the apparmorfs interfaces, via a confused deputy attack, by passing the opened fd to a privileged process, and getting the privileged process to write to the interface.

This does require a privileged target that can be manipulated to do the write for the unprivileged process, but once such access is achieved full policy management is possible and all the possible implications that implies: removing confinement, DoS of system or target applications by denying all execution, by-passing the unprivileged user namespace restriction, to exploiting kernel bugs for a local privilege escalation.

The policy management interface can not have its permissions simply changed from 0666 to 0600 because non-root processes need to be able to load policy to different policy namespaces.

Instead ensure the task writing the interface has privileges that are a subset of the task that opened the interface. This is already done via policy for confined processes, but unconfined can delegate access to the opened fd, by-passing the usual policy check.(CVE-2026-23268)

In the Linux kernel, the following vulnerability has been resolved:

net: usb: pegasus: validate USB endpoints

The pegasus driver should validate that the device it is probing has the proper number and types of USB endpoints it is expecting before it binds to it. If a malicious device were to not have the same urbs the driver will crash later on when it blindly accesses these endpoints.(CVE-2026-23290)

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: Compare MACs in constant time

To prevent timing attacks, MAC comparisons need to be constant-time. Replace the memcmp() with the correct function, crypto_memneq().(CVE-2026-23364)

In the Linux kernel, the following vulnerability has been resolved:

KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE

When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE (if it's shadow-present). While commit a54aa15c6bda3 was right about it being impossible to convert a shadow-present SPTE to an MMIO SPTE due to a guest write, it failed to account for writes to guest memory that are outside the scope of KVM.

E.g. if host userspace modifies a shadowed gPTE to switch from a memslot to emulted MMIO and then the guest hits a relevant page fault, KVM will install the MMIO SPTE without first zapping the shadow-present SPTE.

------------[ cut here ]------------ is_shadow_present_pte(*sptep) WARNING: arch/x86/kvm/mmu/mmu.c:484 at mark_mmio_spte+0xb2/0xc0 [kvm], CPU#0: vmx_ept_stale_r/4292 Modules linked in: kvm_intel kvm irqbypass CPU: 0 UID: 1000 PID: 4292 Comm: vmx_ept_stale_r Not tainted 7.0.0-rc2-eafebd2d2ab0-sink-vm #319 PREEMPT Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:mark_mmio_spte+0xb2/0xc0 [kvm] Call Trace: <TASK> mmu_set_spte+0x237/0x440 [kvm] ept_page_fault+0x535/0x7f0 [kvm] kvm_mmu_do_page_fault+0xee/0x1f0 [kvm] kvm_mmu_page_fault+0x8d/0x620 [kvm] vmx_handle_exit+0x18c/0x5a0 [kvm_intel] kvm_arch_vcpu_ioctl_run+0xc55/0x1c20 [kvm] kvm_vcpu_ioctl+0x2d5/0x980 [kvm] __x64_sys_ioctl+0x8a/0xd0 do_syscall_64+0xb5/0x730 entry_SYSCALL_64_after_hwframe+0x4b/0x53 RIP: 0033:0x47fa3f </TASK> ---[ end trace 0000000000000000 ]---(CVE-2026-23401)

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to detect potential corrupted nid in free_nid_list

As reported, on-disk footer.ino and footer.nid is the same and out-of-range, let's add sanity check on f2fs_alloc_nid() to detect any potential corruption in free_nid_list.(CVE-2025-68315)

In the Linux kernel, the following vulnerability has been resolved:

ntfs3: Fix uninit buffer allocated by __getname()

Fix uninit errors caused after buffer allocation given to 'de'; by initializing the buffer with zeroes. The fix was found by using KMSAN.(CVE-2025-68727)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: fix use-after-free in nf_tables_addchain()

nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hooks. If nf_tables_register_hook() then fails, the error path calls nft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy() with no RCU grace period in between.

This creates two use-after-free conditions:

1. Control-plane: nf_tables_dump_chains() traverses table->chains under rcu_read_lock(). A concurrent dump can still be walking the chain when the error path frees it.

2. Packet path: for NFPROTO_INET, nf_register_net_hook() briefly installs the IPv4 hook before IPv6 registration fails. Packets entering nft_do_chain() via the transient IPv4 hook can still be dereferencing chain->blob_gen_X when the error path frees the chain.

Add synchronize_rcu() between nft_chain_del() and the chain destroy so that all RCU readers -- both dump threads and in-flight packet evaluation -- have finished before the chain is freed.(CVE-2026-23231)

In the Linux kernel, the following vulnerability has been resolved:

tls: Fix race condition in tls_sw_cancel_work_tx()

This issue was discovered during a code audit.

After cancel_delayed_work_sync() is called from tls_sk_proto_close(), tx_work_handler() can still be scheduled from paths such as the Delayed ACK handler or ksoftirqd. As a result, the tx_work_handler() worker may dereference a freed TLS object.

The following is a simple race scenario:

      cpu0                         cpu1

tls_sk_proto_close() tls_sw_cancel_work_tx() tls_write_space() tls_sw_write_space() if (!test_and_set_bit(BIT_TX_SCHEDULED, &tx_ctx->tx_bitmask)) set_bit(BIT_TX_SCHEDULED, &ctx->tx_bitmask); cancel_delayed_work_sync(&ctx->tx_work.work); schedule_delayed_work(&tx_ctx->tx_work.work, 0);

To prevent this race condition, cancel_delayed_work_sync() is replaced with disable_delayed_work_sync().(CVE-2026-23240)

In the Linux kernel, the following vulnerability has been resolved:

net/sched: act_gate: snapshot parameters with RCU on replace

The gate action can be replaced while the hrtimer callback or dump path is walking the schedule list.

Convert the parameters to an RCU-protected snapshot and swap updates under tcf_lock, freeing the previous snapshot via call_rcu(). When REPLACE omits the entry list, preserve the existing schedule so the effective state is unchanged.(CVE-2026-23245)

In the Linux kernel, the following vulnerability has been resolved:

net: gro: fix outer network offset

The udp GRO complete stage assumes that all the packets inserted the RX have the encapsulation flag zeroed. Such assumption is not true, as a few H/W NICs can set such flag when H/W offloading the checksum for an UDP encapsulated traffic, the tun driver can inject GSO packets with UDP encapsulation and the problematic layout can also be created via a veth based setup.

Due to the above, in the problematic scenarios, udp4_gro_complete() uses the wrong network offset (inner…

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to detect potential corrupted nid in free_nid_list

As reported, on-disk footer.ino and footer.nid is the same and out-of-range, let's add sanity check on f2fs_alloc_nid() to detect any potential corruption in free_nid_list.(CVE-2025-68315)

In the Linux kernel, the following vulnerability has been resolved:

ntfs3: Fix uninit buffer allocated by __getname()

Fix uninit errors caused after buffer allocation given to 'de'; by initializing the buffer with zeroes. The fix was found by using KMSAN.(CVE-2025-68727)

In the Linux kernel, a security vulnerability exists in the IOMMU Shared Virtual Addressing (SVA) feature. On x86 architecture when CONFIG_X86 is set, IOMMU hardware caches kernel page table entries. Due to the lack of notification mechanism for kernel page table changes, when kernel page table pages are freed and reused, the IOMMU may retain stale entries, leading to Use-After-Free (UAF) and Write-After-Free (WAF) conditions. This can be exploited to cause arbitrary physical memory DMA access or privilege escalation.(CVE-2025-71089)

In the Linux kernel, the following vulnerability has been resolved:

uacce: fix cdev handling in the cleanup path

When cdev_device_add fails, it internally releases the cdev memory, and if cdev_device_del is then executed, it will cause a hang error. To fix it, we check the return value of cdev_device_add() and clear uacce->cdev to avoid calling cdev_device_del in the uacce_remove.(CVE-2026-23096)

In the Linux kernel, the following vulnerability has been resolved:

bonding: fix use-after-free due to enslave fail after slave array update

Fix a use-after-free which happens due to enslave failure after the new slave has been added to the array. Since the new slave can be used for Tx immediately, we can use it after it has been freed by the enslave error cleanup path which frees the allocated slave memory. Slave update array is supposed to be called last when further enslave failures are not expected. Move it after xdp setup to avoid any problems.

It is very easy to reproduce the problem with a simple xdp_pass prog: ip l add bond1 type bond mode balance-xor ip l set bond1 up ip l set dev bond1 xdp object xdp_pass.o sec xdp_pass ip l add dumdum type dummy

Then run in parallel: while :; do ip l set dumdum master bond1 1>/dev/null 2>&1; done; mausezahn bond1 -a own -b rand -A rand -B 1.1.1.1 -c 0 -t tcp "dp=1-1023, flags=syn"

The crash happens almost immediately: [ 605.602850] Oops: general protection fault, probably for non-canonical address 0xe0e6fc2460000137: 0000 [#1] SMP KASAN NOPTI [ 605.602916] KASAN: maybe wild-memory-access in range [0x07380123000009b8-0x07380123000009bf] [ 605.602946] CPU: 0 UID: 0 PID: 2445 Comm: mausezahn Kdump: loaded Tainted: G B 6.19.0-rc6+ #21 PREEMPT(voluntary) [ 605.602979] Tainted: [B]=BAD_PAGE [ 605.602998] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 605.603032] RIP: 0010:netdev_core_pick_tx+0xcd/0x210 [ 605.603063] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 3e 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 08 49 8d 7d 30 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 25 01 00 00 49 8b 45 30 4c 89 e2 48 89 ee 48 89 [ 605.603111] RSP: 0018:ffff88817b9af348 EFLAGS: 00010213 [ 605.603145] RAX: dffffc0000000000 RBX: ffff88817d28b420 RCX: 0000000000000000 [ 605.603172] RDX: 00e7002460000137 RSI: 0000000000000008 RDI: 07380123000009be [ 605.603199] RBP: ffff88817b541a00 R08: 0000000000000001 R09: fffffbfff3ed8c0c [ 605.603226] R10: ffffffff9f6c6067 R11: 0000000000000001 R12: 0000000000000000 [ 605.603253] R13: 073801230000098e R14: ffff88817d28b448 R15: ffff88817b541a84 [ 605.603286] FS: 00007f6570ef67c0(0000) GS:ffff888221dfa000(0000) knlGS:0000000000000000 [ …

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to detect potential corrupted nid in free_nid_list

As reported, on-disk footer.ino and footer.nid is the same and out-of-range, let's add sanity check on f2fs_alloc_nid() to detect any potential corruption in free_nid_list.(CVE-2025-68315)

In the Linux kernel, the following vulnerability has been resolved:

ntfs3: Fix uninit buffer allocated by __getname()

Fix uninit errors caused after buffer allocation given to 'de'; by initializing the buffer with zeroes. The fix was found by using KMSAN.(CVE-2025-68727)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: fix use-after-free in nf_tables_addchain()

nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hooks. If nf_tables_register_hook() then fails, the error path calls nft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy() with no RCU grace period in between.

This creates two use-after-free conditions:

1. Control-plane: nf_tables_dump_chains() traverses table->chains under rcu_read_lock(). A concurrent dump can still be walking the chain when the error path frees it.

2. Packet path: for NFPROTO_INET, nf_register_net_hook() briefly installs the IPv4 hook before IPv6 registration fails. Packets entering nft_do_chain() via the transient IPv4 hook can still be dereferencing chain->blob_gen_X when the error path frees the chain.

Add synchronize_rcu() between nft_chain_del() and the chain destroy so that all RCU readers -- both dump threads and in-flight packet evaluation -- have finished before the chain is freed.(CVE-2026-23231)

In the Linux kernel, the following vulnerability has been resolved:

tls: Fix race condition in tls_sw_cancel_work_tx()

This issue was discovered during a code audit.

After cancel_delayed_work_sync() is called from tls_sk_proto_close(), tx_work_handler() can still be scheduled from paths such as the Delayed ACK handler or ksoftirqd. As a result, the tx_work_handler() worker may dereference a freed TLS object.

The following is a simple race scenario:

      cpu0                         cpu1

tls_sk_proto_close() tls_sw_cancel_work_tx() tls_write_space() tls_sw_write_space() if (!test_and_set_bit(BIT_TX_SCHEDULED, &tx_ctx->tx_bitmask)) set_bit(BIT_TX_SCHEDULED, &ctx->tx_bitmask); cancel_delayed_work_sync(&ctx->tx_work.work); schedule_delayed_work(&tx_ctx->tx_work.work, 0);

To prevent this race condition, cancel_delayed_work_sync() is replaced with disable_delayed_work_sync().(CVE-2026-23240)

In the Linux kernel, the following vulnerability has been resolved:

net/sched: act_gate: snapshot parameters with RCU on replace

The gate action can be replaced while the hrtimer callback or dump path is walking the schedule list.

Convert the parameters to an RCU-protected snapshot and swap updates under tcf_lock, freeing the previous snapshot via call_rcu(). When REPLACE omits the entry list, preserve the existing schedule so the effective state is unchanged.(CVE-2026-23245)

In the Linux kernel, the following vulnerability has been resolved:

net: gro: fix outer network offset

The udp GRO complete stage assumes that all the packets inserted the RX have the encapsulation flag zeroed. Such assumption is not true, as a few H/W NICs can set such flag when H/W offloading the checksum for an UDP encapsulated traffic, the tun driver can inject GSO packets with UDP encapsulation and the problematic layout can also be created via a veth based setup.

Due to the above, in the problematic scenarios, udp4_gro_complete() uses the wrong network offset (inner…

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: nvme: avoid double free special payload (CVE-2024-41073)

• kernel: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (CVE-2025-40252)

• kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)

• kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)

• kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)

• kernel: crypto: algif_aead - Revert to operating out-of-place (CVE-2026-31431)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: nvme: avoid double free special payload (CVE-2024-41073)

• kernel: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (CVE-2025-40252)

• kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)

• kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)

• kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)

• kernel: crypto: algif_aead - Revert to operating out-of-place (CVE-2026-31431)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit (CVE-2025-39766)

• kernel: scsi: qla2xxx: Fix improper freeing of purex item (CVE-2025-68741)

• kernel: libceph: make decode_pool() more resilient against corrupted osdmaps (CVE-2025-71116)

• kernel: libceph: prevent potential out-of-bounds reads in handle_auth_done() (CVE-2026-22984)

• kernel: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() (CVE-2026-22990)

• kernel: Linux kernel: Denial of Service in libceph OSD client due to unreset sparse-read state (CVE-2026-23136)

• kernel: net/sched: cls_u32: use skb_header_pointer_careful() (CVE-2026-23204)

• kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270)

• kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)

• kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)

• kernel: can: raw: fix ro->uniq use-after-free in raw_rcv() (CVE-2026-31532)

• kernel: usbip: validate number_of_packets in usbip_pack_ret_submit() (CVE-2026-31607)

• kernel: md/bitmap: fix GPF in write_page caused by resize race (CVE-2026-43163)

• kernel: RDMA/umem: Fix double dma_buf_unpin in failure path (CVE-2026-43128)

• kernel: "Dirty Frag" is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284)

• kernel: "Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)

• kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: net: af_can: do not leave a dangling sk pointer in can_create() (CVE-2024-56603)

• kernel: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit (CVE-2025-39766)

• kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)

• kernel: scsi: qla2xxx: Fix improper freeing of purex item (CVE-2025-68741)

• kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270)

• kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)

• kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)

• kernel: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold (CVE-2026-31408)

• kernel: usbip: validate number_of_packets in usbip_pack_ret_submit() (CVE-2026-31607)

• kernel: RDMA/umem: Fix double dma_buf_unpin in failure path (CVE-2026-43128)

• kernel: "Dirty Frag" is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284)

• kernel: "Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)

• kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Root has patched CVE-2026-23401 in the linux package for Root:Debian:12. Multiple fixed versions available.

Root has patched CVE-2026-23401 in the linux package for Root:Debian:13. Multiple fixed versions available.

Root has patched CVE-2026-23401 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available.

Root has patched CVE-2026-23401 in the linux package for Root:Ubuntu:24.04. Multiple fixed versions available.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: nvme: avoid double free special payload (CVE-2024-41073)

• kernel: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (CVE-2025-40252)

• kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)

• kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)

• kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)

• kernel: crypto: algif_aead - Revert to operating out-of-place (CVE-2026-31431)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE (if it's shadow-present). While commit a54aa15c6bda3 was right about it being impossible to convert a shadow-present SPTE to an MMIO SPTE due to a guest write, it failed to account for writes to guest memory that are outside the scope of KVM. E.g. if host userspace modifies a shadowed gPTE to switch from a memslot to emulted MMIO and then the guest hits a relevant page fault, KVM will install the MMIO SPTE without first zapping the shadow-present SPTE. ------------[ cut here ]------------ is_shadow_present_pte(*sptep) WARNING: arch/x86/kvm/mmu/mmu.c:484 at mark_mmio_spte+0xb2/0xc0 [kvm], CPU#0: vmx_ept_stale_r/4292 Modules linked in: kvm_intel kvm irqbypass CPU: 0 UID: 1000 PID: 4292 Comm: vmx_ept_stale_r Not tainted 7.0.0-rc2-eafebd2d2ab0-sink-vm #319 PREEMPT Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:mark_mmio_spte+0xb2/0xc0 [kvm] Call Trace: <TASK> mmu_set_spte+0x237/0x440 [kvm] ept_page_fault+0x535/0x7f0 [kvm] kvm_mmu_do_page_fault+0xee/0x1f0 [kvm] kvm_mmu_page_fault+0x8d/0x620 [kvm] vmx_handle_exit+0x18c/0x5a0 [kvm_intel] kvm_arch_vcpu_ioctl_run+0xc55/0x1c20 [kvm] kvm_vcpu_ioctl+0x2d5/0x980 [kvm] __x64_sys_ioctl+0x8a/0xd0 do_syscall_64+0xb5/0x730 entry_SYSCALL_64_after_hwframe+0x4b/0x53 RIP: 0033:0x47fa3f </TASK> ---[ end trace 0000000000000000 ]---

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: nvme: avoid double free special payload (CVE-2024-41073)
• kernel: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (CVE-2025-40252)
• kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)
• kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)
• kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)
• kernel: crypto: algif_aead - Revert to operating out-of-place (CVE-2026-31431)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: nvme: avoid double free special payload (CVE-2024-41073)
• kernel: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (CVE-2025-40252)
• kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)
• kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)
• kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)
• kernel: crypto: algif_aead - Revert to operating out-of-place (CVE-2026-31431)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit (CVE-2025-39766)
• kernel: scsi: qla2xxx: Fix improper freeing of purex item (CVE-2025-68741)
• kernel: libceph: make decode_pool() more resilient against corrupted osdmaps (CVE-2025-71116)
• kernel: libceph: prevent potential out-of-bounds reads in handle_auth_done() (CVE-2026-22984)
• kernel: libceph: replace overzealous BUG_ON in osdmap_apply_incremental() (CVE-2026-22990)
• kernel: Linux kernel: Denial of Service in libceph OSD client due to unreset sparse-read state (CVE-2026-23136)
• kernel: net/sched: cls_u32: use skb_header_pointer_careful() (CVE-2026-23204)
• kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270)
• kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)
• kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)
• kernel: can: raw: fix ro->uniq use-after-free in raw_rcv() (CVE-2026-31532)
• kernel: usbip: validate number_of_packets in usbip_pack_ret_submit() (CVE-2026-31607)
• kernel: md/bitmap: fix GPF in write_page caused by resize race (CVE-2026-43163)
• kernel: RDMA/umem: Fix double dma_buf_unpin in failure path (CVE-2026-43128)
• kernel: "Dirty Frag" is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284)
• kernel: "Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)
• kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: net: af_can: do not leave a dangling sk pointer in can_create() (CVE-2024-56603)
• kernel: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit (CVE-2025-39766)
• kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)
• kernel: scsi: qla2xxx: Fix improper freeing of purex item (CVE-2025-68741)
• kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270)
• kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)
• kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)
• kernel: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold (CVE-2026-31408)
• kernel: usbip: validate number_of_packets in usbip_pack_ret_submit() (CVE-2026-31607)
• kernel: RDMA/umem: Fix double dma_buf_unpin in failure path (CVE-2026-43128)
• kernel: "Dirty Frag" is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284)
• kernel: "Fragnesia" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)
• kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

In the Linux kernel, the following vulnerability has been resolved:

KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE

When installing an emulated MMIO SPTE, do so after dropping/zapping the existing SPTE (if it's shadow-present). While commit a54aa15c6bda3 was right about it being impossible to convert a shadow-present SPTE to an MMIO SPTE due to a guest write, it failed to account for writes to guest memory that are outside the scope of KVM.

E.g. if host userspace modifies a shadowed gPTE to switch from a memslot to emulted MMIO and then the guest hits a relevant page fault, KVM will install the MMIO SPTE without first zapping the shadow-present SPTE.

------------[ cut here ]------------ is_shadow_present_pte(*sptep) WARNING: arch/x86/kvm/mmu/mmu.c:484 at mark_mmio_spte+0xb2/0xc0 [kvm], CPU#0: vmx_ept_stale_r/4292 Modules linked in: kvm_intel kvm irqbypass CPU: 0 UID: 1000 PID: 4292 Comm: vmx_ept_stale_r Not tainted 7.0.0-rc2-eafebd2d2ab0-sink-vm #319 PREEMPT Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:mark_mmio_spte+0xb2/0xc0 [kvm] Call Trace: <TASK> mmu_set_spte+0x237/0x440 [kvm] ept_page_fault+0x535/0x7f0 [kvm] kvm_mmu_do_page_fault+0xee/0x1f0 [kvm] kvm_mmu_page_fault+0x8d/0x620 [kvm] vmx_handle_exit+0x18c/0x5a0 [kvm_intel] kvm_arch_vcpu_ioctl_run+0xc55/0x1c20 [kvm] kvm_vcpu_ioctl+0x2d5/0x980 [kvm] __x64_sys_ioctl+0x8a/0xd0 do_syscall_64+0xb5/0x730 entry_SYSCALL_64_after_hwframe+0x4b/0x53 RIP: 0033:0x47fa3f </TASK> ---[ end trace 0000000000000000 ]---

• fbcon: Fix OOB access in font allocation {CVE-2025-39967}
• fbcon: fix integer overflow in fbcon_do_set_font {CVE-2025-39967}
• macvlan: observe an RCU grace period in macvlan_common_newlink() error path {CVE-2026-23273}
• macvlan: fix error recovery in macvlan_common_newlink() {CVE-2026-23209}
• net_sched: sch_sfq: move the limit validation {CVE-2025-37752}
• bpf: Fix oob access in cgroup local storage {CVE-2025-38502}
• ftrace: Fix possible use-after-free issue in ftrace_location() {CVE-2024-38588}
• driver core: enforce device_lock for driver_match_device() {CVE-2026-31688}
• scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT {CVE-2026-43475}
• unshare: fix unshare_fs() handling {CVE-2026-43472}
• netfilter: nfnetlink_queue: fix entry leak in bridge verdict error path {CVE-2026-43451}
• nvme-pci: Fix race bug in nvme_poll_irqdisable() {CVE-2026-43448}
• e1000/e1000e: Fix leak in DMA error cleanup {CVE-2026-43445}
• cgroup: fix race between task migration and iteration {CVE-2026-43439}
• ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces {CVE-2026-43436}
• usb: image: mdc800: kill download URB on timeout {CVE-2026-43425}
• tipc: fix divide-by-zero in tipc_sk_filter_connect() {CVE-2026-43411}
• nouveau/dpcd: return EBUSY for aux xfer if the device is asleep {CVE-2026-43381}
• ext4: avoid allocate block from corrupted group in ext4_mb_find_by_goal() {CVE-2026-43068}
• netfilter: x_tables: restrict xt_check_match/xt_check_target extensions for NFPROTO_ARP {CVE-2026-31424}
• net/sched: sch_hfsc: fix divide-by-zero in rtsc_min() {CVE-2026-31423}
• net/sched: cls_flow: fix NULL pointer dereference on shared blocks {CVE-2026-31422}
• net/sched: cls_fw: fix NULL pointer dereference on shared blocks {CVE-2026-31421}
• netfilter: ipset: drop logically empty buckets in mtype_del {CVE-2026-31418}
• netfilter: nfnetlink_log: account for netlink header size {CVE-2026-31416}
• sunrpc: fix cache_request leak in cache_release {CVE-2026-31400}
• PM: runtime: Fix a race condition related to device removal {CVE-2026-23452}
• net: usb: kaweth: validate USB endpoints {CVE-2026-23312}
• nvdimm/bus: Fix potential use after free in asynchronous initialization {CVE-2026-31399}
• net: usb: cdc_ncm: add ndpoffset to NDP16 nframes bounds check {CVE-2026-23448}
• nvme-pci: Fix slab-out-of-bounds in nvme_dbbuf_set {CVE-2026-43449}
• netfilter: nft_set_pipapo: fix stack out-of-bounds read in pipapo_drop() {CVE-2026-43453}
• netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table() {CVE-2026-43450}
• RDMA/umem: Fix double dma_buf_unpin in failure path {CVE-2026-43128}
• usbip: validate number_of_packets in usbip_pack_ret_submit() {CVE-2026-31607}
• net: mana: fix use-after-free in mana_hwc_destroy_channel() by reordering teardown {CVE-2026-23454}
• netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto() {CVE-2025-38441}
• nvmet: fix memory leak of bio integrity {CVE-2025-38405}
• nfs: Clean up /proc/net/rpc/nfs when nfs_fs_proc_net_init() fails. {CVE-2025-38400}
• dmaengine: idxd: fix memory leak in error handling path of idxd_alloc {CVE-2025-38015}
• bonding: check xdp prog when set bond mode {CVE-2025-22105}
• usb: class: cdc-wdm: fix reordering issue in read code path {CVE-2026-43427}
• netfilter: nfnetlink_log: fix uninitialized padding leak in NFULA_PAYLOAD {CVE-2026-31428}
• netfilter: nf_conntrack_sip: fix use of uninitialized rtp_addr in process_sdp {CVE-2026-31427}
• ipv6: avoid overflows in ip6_datagram_send_ctl() {CVE-2026-31415}
• net: atm: fix crash due to unvalidated vcc pointer in sigd_send() {CVE-2026-31411}
• RDMA/umad: Reject negative data_len in ib_umad_write {CVE-2026-23243}
• perf/x86/intel/uncore: Fix die ID init and look up bugs {CVE-2026-43344}
• x86/apic: Disable x2apic on resume if the kernel expects so {CVE-2026-43363}
• dm: remove fake timeout to avoid leak request {CVE-2026-43314}
• drm: Account property blob allocations to memcg {CVE-2026-43287}
• HID:…

• gpiolib: cdev: Set lineevent_state::irq after IRQ register successfully {CVE-2022-48660}
• ipv4: check for NULL idev in ip_route_use_hint() {CVE-2024-36008}
• KEYS: trusted: Do not use WARN when encode fails {CVE-2024-36975}
• Fix userfaultfd_api to return EINVAL as expected {CVE-2024-41027}
• xhci: Fix null pointer dereference when host dies {CVE-2023-52898}
• sctp: sysctl: auth_enable: avoid using current->nsproxy {CVE-2025-21638}
• blk-mq: fix IO hang from sbitmap wakeup race {CVE-2024-26671}
• net: openvswitch: fix flow memory leak in ovs_flow_cmd_new {CVE-2023-52977}
• gpiolib: fix memory leak in gpiochip_setup_dev() {CVE-2022-48975}
• HID: betop: check shape of output reports {CVE-2023-53015}
• mm/swapfile: add cond_resched() in get_swap_pages() {CVE-2023-52932}
• HV: hv_balloon: fix memory leak with using debugfs_lookup() {CVE-2023-52937}
• drm/i915: Fix a memory leak with reused mmap_offset {CVE-2023-53002}
• ptdma: pt_core_execute_cmd() should use spinlock {CVE-2023-53013}
• RDMA/core: Fix ib block iterator counter overflow {CVE-2023-53026}
• Bluetooth: hci_conn: Fix memory leaks {CVE-2023-53018}
• scsi: target: pscsi: Fix bio_put() for error case {CVE-2024-26760}
• sctp: Prevent TOCTOU out-of-bounds write {CVE-2025-40331}
• pnfs/flexfiles: Fix memory leak in nfs4_ff_alloc_deviceid_node() {CVE-2026-23038}
• cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request() {CVE-2025-40194}
• ALSA: hda/cs8409: Fix possible NULL dereference {CVE-2024-50160}
• nbd: don't allow reconnect after disconnect {CVE-2025-21731}
• openvswitch: fix lockup on tx to unregistering netdev with carrier {CVE-2025-21681}
• ext4: detect invalid INLINE_DATA + EXTENTS flag combination {CVE-2025-40167}
• ext4: xattr: fix null pointer deref in ext4_raw_inode() {CVE-2025-68820}
• net: fix memory leak in skb_segment_list for GRO packets {CVE-2026-22979}
• wifi: brcmfmac: fix crash while sending Action Frames in standalone AP Mode {CVE-2025-40321}
• ipvs: fix ipv4 null-ptr-deref in route error path {CVE-2025-68813}
• ASoC: Intel: bytcr_rt5651: Fix invalid quirk input mapping {CVE-2025-40121}
• i40e: Fix macvlan leak by synchronizing access to mac_filter_hash {CVE-2024-50041}
• net/mlx5e: Fix NULL deref in mlx5e_tir_builder_alloc() {CVE-2024-50000}
• bpf: Fix reference count leak in bpf_prog_test_run_xdp() {CVE-2026-22994}
• xsk: check IFF_UP earlier in Tx path {CVE-2023-53240}
• firmware: cs_dsp: Prevent buffer overrun when processing V2 alg headers {CVE-2024-41038}
• virtgpu: don't reset on shutdown {CVE-2025-38064}
• xen/netfront: fix crash when removing device {CVE-2022-48969}
• mptcp: do not fallback when OoO is present {CVE-2024-50185}
• can: j1939: add missing calls in NETDEV_UNREGISTER notification handler {CVE-2025-39925}
• netfilter: nf_tables: remove redundant chain validation on register store {CVE-2025-71160}
• xfs: fix use-after-free in xattr node block inactivation {CVE-2026-43053}
• ext4: fix racy may inline data check in dio write {CVE-2023-52786}
• drm/amdgpu/fence: Fix oops due to non-matching drm_sched init/fini {CVE-2023-52738}
• macsec: fix UAF bug for real_dev {CVE-2022-49390}
• drm/i915/gem: Fix Virtual Memory mapping boundaries calculation {CVE-2024-42259}
• mm/shmem: disable PMD-sized page cache if needed {CVE-2024-42241}
• driver: iio: add missing checks on iio_info's callback access {CVE-2024-46715}
• udmabuf: fix memory leak on last export_udmabuf() error path {CVE-2024-56712}
• ALSA: control: Avoid WARN() for symlink errors {CVE-2024-56657}
• mm/mempolicy: fix migrate_to_node() assuming there is at least one VMA in a MM {CVE-2024-56611}
• eth: bnxt: always recalculate features after XDP clearing, fix null-deref {CVE-2025-21682}
• net: annotate data-races around sk->sk_{data_ready,write_space} {CVE-2026-23302}
• udmabuf: change folios array from kmalloc to kvmalloc {CVE-2024-56544}
• RDMA/mlx5: Move events notifier registration to be after device registration {CVE-2024-53224}
• dlm: fix possible lkb_resource…

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
• CVE-2024-14027: xattr: switch to CLASS(fd) (bsc#1259420).
• CVE-2025-40181: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP (bsc#1253471).
• CVE-2025-68265: nvme: fix admin request_queue lifetime (bsc#1255360).
• CVE-2025-68310: s390/pci: Avoid deadlock between PCI error recovery and mlx5 crdump (bsc#1255160).
• CVE-2025-71302: drm/panthor: fix for dma-fence safe access rules (bsc#1264837).
• CVE-2026-23168: flex_proportions: make fprop_new_period() hardirq safe (bsc#1258826).
• CVE-2026-23245: net/sched: act_gate: snapshot parameters with RCU on replace (bsc#1259799).
• CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
• CVE-2026-23276: net: add xmit recursion limit to tunnel xmit functions (bsc#1260012).
• CVE-2026-23300: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (bsc#1260538).
• CVE-2026-23313: i40e: Fix preempt count leak in napi poll tracepoint (bsc#1260555).
• CVE-2026-23316: net: ipv4: fix ARM64 alignment fault in multipath hash seed (bsc#1260573).
• CVE-2026-23321: mptcp: pm: in-kernel: always mark signal+subflow endp as used (bsc#1260505).
• CVE-2026-23340: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (bsc#1260523).
• CVE-2026-23346: arm64: io: Rename ioremap_prot() to __ioremap_prot() (bsc#1260529).
• CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
• CVE-2026-23354: x86/fred: Correct speculative safety in fred_extint() (bsc#1260801).
• CVE-2026-23368: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (bsc#1260530).
• CVE-2026-23374: blktrace: fix __this_cpu_read/write in preemptible context (bsc#1260811).
• CVE-2026-23375: mm: thp: deny THP for files on anonymous inodes (bsc#1260576).
• CVE-2026-23378: net/sched: act_ife: Fix metalist update behavior (bsc#1260546).
• CVE-2026-23391: netfilter: xt_CT: drop pending enqueued packets on template removal (bsc#1260566).
• CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531).
• CVE-2026-23397: nfnetlink_osf: validate individual option lengths in fingerprints (bsc#1260728).
• CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path (bsc#1261020).
• CVE-2026-23417: bpf: Fix constant blinding for PROBE_MEM32 stores (bsc#1261410).
• CVE-2026-23436: net: add helpers for lookup and walking netdevs under netdev_lock() (bsc#1261617).
• CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy (bsc#1261635).
• CVE-2026-23440: net/mlx5e: Fix race condition during IPSec ESN update (bsc#1261641).
• CVE-2026-23441: net/mlx5e: Prevent concurrent access to IPSec ASO context (bsc#1261768).
• CVE-2026-23442: ipv6: add NULL checks for idev in SRv6 paths (bsc#1261581).
• CVE-2026-23445: igc: fix page fault in XDP TX timestamps handling (bsc#1261702).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
• CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
• CVE-2026-23455: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (bsc#1261687).
• CVE-2026-23456: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (bsc#1261703).
• CVE-2026-23457: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (bsc#1261686).
• CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
• CVE-2026-23468: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (bsc#1261692).
• CVE-2026-23472: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN (bsc#1261636).
• CVE-2026-23473: io_uring/poll: fix multishot recv missing EOF on…

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
• CVE-2024-14027: xattr: switch to CLASS(fd) (bsc#1259420).
• CVE-2025-40181: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP (bsc#1253471).
• CVE-2025-68265: nvme: fix admin request_queue lifetime (bsc#1255360).
• CVE-2025-68310: s390/pci: Avoid deadlock between PCI error recovery and mlx5 crdump (bsc#1255160).
• CVE-2025-71302: drm/panthor: fix for dma-fence safe access rules (bsc#1264837).
• CVE-2026-23168: flex_proportions: make fprop_new_period() hardirq safe (bsc#1258826).
• CVE-2026-23245: net/sched: act_gate: snapshot parameters with RCU on replace (bsc#1259799).
• CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
• CVE-2026-23276: net: add xmit recursion limit to tunnel xmit functions (bsc#1260012).
• CVE-2026-23300: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (bsc#1260538).
• CVE-2026-23313: i40e: Fix preempt count leak in napi poll tracepoint (bsc#1260555).
• CVE-2026-23316: net: ipv4: fix ARM64 alignment fault in multipath hash seed (bsc#1260573).
• CVE-2026-23321: mptcp: pm: in-kernel: always mark signal+subflow endp as used (bsc#1260505).
• CVE-2026-23340: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (bsc#1260523).
• CVE-2026-23346: arm64: io: Rename ioremap_prot() to __ioremap_prot() (bsc#1260529).
• CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
• CVE-2026-23354: x86/fred: Correct speculative safety in fred_extint() (bsc#1260801).
• CVE-2026-23368: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (bsc#1260530).
• CVE-2026-23374: blktrace: fix __this_cpu_read/write in preemptible context (bsc#1260811).
• CVE-2026-23375: mm: thp: deny THP for files on anonymous inodes (bsc#1260576).
• CVE-2026-23378: net/sched: act_ife: Fix metalist update behavior (bsc#1260546).
• CVE-2026-23391: netfilter: xt_CT: drop pending enqueued packets on template removal (bsc#1260566).
• CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531).
• CVE-2026-23397: nfnetlink_osf: validate individual option lengths in fingerprints (bsc#1260728).
• CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path (bsc#1261020).
• CVE-2026-23417: bpf: Fix constant blinding for PROBE_MEM32 stores (bsc#1261410).
• CVE-2026-23436: net: add helpers for lookup and walking netdevs under netdev_lock() (bsc#1261617).
• CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy (bsc#1261635).
• CVE-2026-23440: net/mlx5e: Fix race condition during IPSec ESN update (bsc#1261641).
• CVE-2026-23441: net/mlx5e: Prevent concurrent access to IPSec ASO context (bsc#1261768).
• CVE-2026-23442: ipv6: add NULL checks for idev in SRv6 paths (bsc#1261581).
• CVE-2026-23445: igc: fix page fault in XDP TX timestamps handling (bsc#1261702).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
• CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
• CVE-2026-23455: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (bsc#1261687).
• CVE-2026-23456: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (bsc#1261703).
• CVE-2026-23457: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (bsc#1261686).
• CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
• CVE-2026-23468: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (bsc#1261692).
• CVE-2026-23472: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN (bsc#1261636).
• CVE-2026-23473: io_uring/poll: fix multishot recv missing EOF on…

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
• CVE-2024-14027: xattr: switch to CLASS(fd) (bsc#1259420).
• CVE-2025-40181: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP (bsc#1253471).
• CVE-2025-68265: nvme: fix admin request_queue lifetime (bsc#1255360).
• CVE-2025-68310: s390/pci: Avoid deadlock between PCI error recovery and mlx5 crdump (bsc#1255160).
• CVE-2025-71302: drm/panthor: fix for dma-fence safe access rules (bsc#1264837).
• CVE-2026-23168: flex_proportions: make fprop_new_period() hardirq safe (bsc#1258826).
• CVE-2026-23245: net/sched: act_gate: snapshot parameters with RCU on replace (bsc#1259799).
• CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
• CVE-2026-23276: net: add xmit recursion limit to tunnel xmit functions (bsc#1260012).
• CVE-2026-23300: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (bsc#1260538).
• CVE-2026-23313: i40e: Fix preempt count leak in napi poll tracepoint (bsc#1260555).
• CVE-2026-23316: net: ipv4: fix ARM64 alignment fault in multipath hash seed (bsc#1260573).
• CVE-2026-23321: mptcp: pm: in-kernel: always mark signal+subflow endp as used (bsc#1260505).
• CVE-2026-23340: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (bsc#1260523).
• CVE-2026-23346: arm64: io: Rename ioremap_prot() to __ioremap_prot() (bsc#1260529).
• CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
• CVE-2026-23354: x86/fred: Correct speculative safety in fred_extint() (bsc#1260801).
• CVE-2026-23368: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (bsc#1260530).
• CVE-2026-23374: blktrace: fix __this_cpu_read/write in preemptible context (bsc#1260811).
• CVE-2026-23375: mm: thp: deny THP for files on anonymous inodes (bsc#1260576).
• CVE-2026-23378: net/sched: act_ife: Fix metalist update behavior (bsc#1260546).
• CVE-2026-23391: netfilter: xt_CT: drop pending enqueued packets on template removal (bsc#1260566).
• CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531).
• CVE-2026-23397: nfnetlink_osf: validate individual option lengths in fingerprints (bsc#1260728).
• CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path (bsc#1261020).
• CVE-2026-23417: bpf: Fix constant blinding for PROBE_MEM32 stores (bsc#1261410).
• CVE-2026-23436: net: add helpers for lookup and walking netdevs under netdev_lock() (bsc#1261617).
• CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy (bsc#1261635).
• CVE-2026-23440: net/mlx5e: Fix race condition during IPSec ESN update (bsc#1261641).
• CVE-2026-23441: net/mlx5e: Prevent concurrent access to IPSec ASO context (bsc#1261768).
• CVE-2026-23442: ipv6: add NULL checks for idev in SRv6 paths (bsc#1261581).
• CVE-2026-23445: igc: fix page fault in XDP TX timestamps handling (bsc#1261702).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
• CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
• CVE-2026-23455: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (bsc#1261687).
• CVE-2026-23456: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (bsc#1261703).
• CVE-2026-23457: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (bsc#1261686).
• CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
• CVE-2026-23468: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (bsc#1261692).
• CVE-2026-23472: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN (bsc#1261636).
• CVE-2026-23473: io_uring/poll: fix multishot recv missing EOF on…

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
• CVE-2024-14027: xattr: switch to CLASS(fd) (bsc#1259420).
• CVE-2025-40181: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP (bsc#1253471).
• CVE-2025-68265: nvme: fix admin request_queue lifetime (bsc#1255360).
• CVE-2025-68310: s390/pci: Avoid deadlock between PCI error recovery and mlx5 crdump (bsc#1255160).
• CVE-2025-71302: drm/panthor: fix for dma-fence safe access rules (bsc#1264837).
• CVE-2026-23168: flex_proportions: make fprop_new_period() hardirq safe (bsc#1258826).
• CVE-2026-23245: net/sched: act_gate: snapshot parameters with RCU on replace (bsc#1259799).
• CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
• CVE-2026-23276: net: add xmit recursion limit to tunnel xmit functions (bsc#1260012).
• CVE-2026-23300: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (bsc#1260538).
• CVE-2026-23313: i40e: Fix preempt count leak in napi poll tracepoint (bsc#1260555).
• CVE-2026-23316: net: ipv4: fix ARM64 alignment fault in multipath hash seed (bsc#1260573).
• CVE-2026-23321: mptcp: pm: in-kernel: always mark signal+subflow endp as used (bsc#1260505).
• CVE-2026-23340: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (bsc#1260523).
• CVE-2026-23346: arm64: io: Rename ioremap_prot() to __ioremap_prot() (bsc#1260529).
• CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
• CVE-2026-23354: x86/fred: Correct speculative safety in fred_extint() (bsc#1260801).
• CVE-2026-23368: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (bsc#1260530).
• CVE-2026-23374: blktrace: fix __this_cpu_read/write in preemptible context (bsc#1260811).
• CVE-2026-23375: mm: thp: deny THP for files on anonymous inodes (bsc#1260576).
• CVE-2026-23378: net/sched: act_ife: Fix metalist update behavior (bsc#1260546).
• CVE-2026-23391: netfilter: xt_CT: drop pending enqueued packets on template removal (bsc#1260566).
• CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531).
• CVE-2026-23397: nfnetlink_osf: validate individual option lengths in fingerprints (bsc#1260728).
• CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path (bsc#1261020).
• CVE-2026-23417: bpf: Fix constant blinding for PROBE_MEM32 stores (bsc#1261410).
• CVE-2026-23436: net: add helpers for lookup and walking netdevs under netdev_lock() (bsc#1261617).
• CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy (bsc#1261635).
• CVE-2026-23440: net/mlx5e: Fix race condition during IPSec ESN update (bsc#1261641).
• CVE-2026-23441: net/mlx5e: Prevent concurrent access to IPSec ASO context (bsc#1261768).
• CVE-2026-23442: ipv6: add NULL checks for idev in SRv6 paths (bsc#1261581).
• CVE-2026-23445: igc: fix page fault in XDP TX timestamps handling (bsc#1261702).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
• CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
• CVE-2026-23455: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (bsc#1261687).
• CVE-2026-23456: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (bsc#1261703).
• CVE-2026-23457: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (bsc#1261686).
• CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
• CVE-2026-23468: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (bsc#1261692).
• CVE-2026-23472: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN (bsc#1261636).
• CVE-2026-23473: io_uring/poll: fix multishot recv missing EOF on…

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 (bsc#1243603).
• CVE-2024-14027: xattr: switch to CLASS(fd) (bsc#1259420).
• CVE-2025-40181: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP (bsc#1253471).
• CVE-2025-68265: nvme: fix admin request_queue lifetime (bsc#1255360).
• CVE-2025-68310: s390/pci: Avoid deadlock between PCI error recovery and mlx5 crdump (bsc#1255160).
• CVE-2025-71302: drm/panthor: fix for dma-fence safe access rules (bsc#1264837).
• CVE-2026-23168: flex_proportions: make fprop_new_period() hardirq safe (bsc#1258826).
• CVE-2026-23245: net/sched: act_gate: snapshot parameters with RCU on replace (bsc#1259799).
• CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018).
• CVE-2026-23276: net: add xmit recursion limit to tunnel xmit functions (bsc#1260012).
• CVE-2026-23300: net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (bsc#1260538).
• CVE-2026-23313: i40e: Fix preempt count leak in napi poll tracepoint (bsc#1260555).
• CVE-2026-23316: net: ipv4: fix ARM64 alignment fault in multipath hash seed (bsc#1260573).
• CVE-2026-23321: mptcp: pm: in-kernel: always mark signal+subflow endp as used (bsc#1260505).
• CVE-2026-23340: net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (bsc#1260523).
• CVE-2026-23346: arm64: io: Rename ioremap_prot() to __ioremap_prot() (bsc#1260529).
• CVE-2026-23351: netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (bsc#1260526).
• CVE-2026-23354: x86/fred: Correct speculative safety in fred_extint() (bsc#1260801).
• CVE-2026-23368: net: phy: register phy led_triggers during probe to avoid AB-BA deadlock (bsc#1260530).
• CVE-2026-23374: blktrace: fix __this_cpu_read/write in preemptible context (bsc#1260811).
• CVE-2026-23375: mm: thp: deny THP for files on anonymous inodes (bsc#1260576).
• CVE-2026-23378: net/sched: act_ife: Fix metalist update behavior (bsc#1260546).
• CVE-2026-23391: netfilter: xt_CT: drop pending enqueued packets on template removal (bsc#1260566).
• CVE-2026-23392: netfilter: nf_tables: release flowtable after rcu grace period on error (bsc#1260531).
• CVE-2026-23397: nfnetlink_osf: validate individual option lengths in fingerprints (bsc#1260728).
• CVE-2026-23399: nf_tables: nft_dynset: fix possible stateful expression memleak in error path (bsc#1261020).
• CVE-2026-23417: bpf: Fix constant blinding for PROBE_MEM32 stores (bsc#1261410).
• CVE-2026-23436: net: add helpers for lookup and walking netdevs under netdev_lock() (bsc#1261617).
• CVE-2026-23437: net: shaper: protect late read accesses to the hierarchy (bsc#1261635).
• CVE-2026-23440: net/mlx5e: Fix race condition during IPSec ESN update (bsc#1261641).
• CVE-2026-23441: net/mlx5e: Prevent concurrent access to IPSec ASO context (bsc#1261768).
• CVE-2026-23442: ipv6: add NULL checks for idev in SRv6 paths (bsc#1261581).
• CVE-2026-23445: igc: fix page fault in XDP TX timestamps handling (bsc#1261702).
• CVE-2026-23449: net/sched: teql: Fix double-free in teql_master_xmit (bsc#1261779).
• CVE-2026-23450: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() (bsc#1261584).
• CVE-2026-23455: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (bsc#1261687).
• CVE-2026-23456: netfilter: nf_conntrack_h323: fix OOB read in decode_int() CONS case (bsc#1261703).
• CVE-2026-23457: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() (bsc#1261686).
• CVE-2026-23458: netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() (bsc#1261781).
• CVE-2026-23468: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (bsc#1261692).
• CVE-2026-23472: serial: core: fix infinite loop in handle_tx() for PORT_UNKNOWN (bsc#1261636).
• CVE-2026-23473: io_uring/poll: fix multishot recv missing EOF on…

It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505)

It was discovered that some AMD Zen 2 processors did not properly isolate shared resources in the operation cache. A local attacker could possibly use this issue to corrupt instructions executed at a higher privilege level, resulting in privilege escalation. (CVE-2025-54518)

It was discovered that some AMD Zen 5 processors supporting RDSEED instruction did not properly handle entropy, potentially resulting in the consumption of insufficiently random values. A local attacker could possibly use this issue to influence the values returned by the RDSEED instruction causing loss of confidentiality and integrity. (CVE-2025-62626)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• ARM64 architecture;
• RISC-V architecture;
• S390 architecture;
• x86 architecture;
• Block layer subsystem;
• Cryptographic API;
• Compute Acceleration Framework;
• ACPI drivers;
• Serial ATA and Parallel ATA drivers;
• Drivers core;
• Power management core;
• DRBD Distributed Replicated Block Device drivers;
• Rados block device (RBD) driver;
• Compressed RAM block device driver;
• Bluetooth drivers;
• Bus devices;
• Character device driver;
• Clock framework and drivers;
• Data acquisition framework and drivers;
• Counter interface drivers;
• CPU frequency scaling framework;
• Hardware crypto device drivers;
• CXL (Compute Express Link) drivers;
• DMA engine subsystem;
• EDAC drivers;
• EFI core;
• GPU drivers;
• Greybus drivers;
• HID subsystem;
• Hardware monitoring drivers;
• I2C subsystem;
• IIO ADC drivers;
• IIO subsystem;
• InfiniBand drivers;
• Input Device (Miscellaneous) drivers;
• IRQ chip drivers;
• LED subsystem;
• Mailbox framework;
• Multiple devices driver;
• Media drivers;
• MediaTek SMI driver;
• NVIDIA Tegra memory controller driver;
• Fastrpc Driver;
• IBM Advanced System Management driver;
• MMC subsystem;
• MTD block device drivers;
• Network drivers;
• Ethernet bonding driver;
• Mellanox network drivers;
• Microsoft Azure Network Adapter (MANA) driver;
• STMicroelectronics network drivers;
• Ethernet team driver;
• MediaTek network drivers;
• Near Field Communication (NFC) drivers;
• NTB driver;
• NVDIMM (Non-Volatile Memory Device) drivers;
• NVME drivers;
• Device tree and open firmware driver;
• PCI subsystem;
• Pin controllers subsystem;
• x86 platform drivers;
• Broadcom BCM2835 power domain driver;
• Generic PM domains;
• i.MX PM domains;
• Remote Processor subsystem;
• S/390 drivers;
• SCSI subsystem;
• SLIMbus drivers;
• Freescale SoC drivers;
• Microchip PolarFire SoC system controller driver;
• SPI subsystem;
• Media staging drivers;
• Realtek RTL8723BS SDIO drivers;
• SM750 framebuffer staging driver;
• TCM subsystem;
• Thermal drivers;
• TTY drivers;
• UFS subsystem;
• Cadence USB3 driver;
• USB Device Class drivers;
• ULPI bus;
• USB core drivers;
• DesignWare USB2 driver;
• USB Gadget drivers;
• USB Host Controller drivers;
• Mustek MDC800 USB digital camera driver;
• USB YUREX driver;
• Renesas USBHS Controller drivers;
• USB Type-C Connector System Software Interface driver;
• VFIO drivers;
• Framebuffer layer;
• TSM TDX Guest driver;
• Xen hypervisor drivers;
• File systems infrastructure;
• BTRFS file system;
• Ceph distributed file system;
• EROFS file system;
• Ext4 file system;
• F2FS file system;
• FUSE (File system in Userspace);
• GFS2 file system;
• HFS+ file system;
• Journaling layer for block devices (JBD2);
• Network file systems library;
• Network…

It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505)

It was discovered that some AMD Zen 2 processors did not properly isolate shared resources in the operation cache. A local attacker could possibly use this issue to corrupt instructions executed at a higher privilege level, resulting in privilege escalation. (CVE-2025-54518)

It was discovered that some AMD Zen 5 processors supporting RDSEED instruction did not properly handle entropy, potentially resulting in the consumption of insufficiently random values. A local attacker could possibly use this issue to influence the values returned by the RDSEED instruction causing loss of confidentiality and integrity. (CVE-2025-62626)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• ARM64 architecture;
• RISC-V architecture;
• S390 architecture;
• x86 architecture;
• Block layer subsystem;
• Cryptographic API;
• Compute Acceleration Framework;
• ACPI drivers;
• Serial ATA and Parallel ATA drivers;
• Drivers core;
• Power management core;
• DRBD Distributed Replicated Block Device drivers;
• Rados block device (RBD) driver;
• Compressed RAM block device driver;
• Bluetooth drivers;
• Bus devices;
• Character device driver;
• Clock framework and drivers;
• Data acquisition framework and drivers;
• Counter interface drivers;
• CPU frequency scaling framework;
• Hardware crypto device drivers;
• CXL (Compute Express Link) drivers;
• DMA engine subsystem;
• EDAC drivers;
• EFI core;
• GPU drivers;
• Greybus drivers;
• HID subsystem;
• Hardware monitoring drivers;
• I2C subsystem;
• IIO ADC drivers;
• IIO subsystem;
• InfiniBand drivers;
• Input Device (Miscellaneous) drivers;
• IRQ chip drivers;
• LED subsystem;
• Mailbox framework;
• Multiple devices driver;
• Media drivers;
• MediaTek SMI driver;
• NVIDIA Tegra memory controller driver;
• Fastrpc Driver;
• IBM Advanced System Management driver;
• MMC subsystem;
• MTD block device drivers;
• Network drivers;
• Ethernet bonding driver;
• Mellanox network drivers;
• Microsoft Azure Network Adapter (MANA) driver;
• STMicroelectronics network drivers;
• Ethernet team driver;
• MediaTek network drivers;
• Near Field Communication (NFC) drivers;
• NTB driver;
• NVDIMM (Non-Volatile Memory Device) drivers;
• NVME drivers;
• Device tree and open firmware driver;
• PCI subsystem;
• Pin controllers subsystem;
• x86 platform drivers;
• Broadcom BCM2835 power domain driver;
• Generic PM domains;
• i.MX PM domains;
• Remote Processor subsystem;
• S/390 drivers;
• SCSI subsystem;
• SLIMbus drivers;
• Freescale SoC drivers;
• Microchip PolarFire SoC system controller driver;
• SPI subsystem;
• Media staging drivers;
• Realtek RTL8723BS SDIO drivers;
• SM750 framebuffer staging driver;
• TCM subsystem;
• Thermal drivers;
• TTY drivers;
• UFS subsystem;
• Cadence USB3 driver;
• USB Device Class drivers;
• ULPI bus;
• USB core drivers;
• DesignWare USB2 driver;
• USB Gadget drivers;
• USB Host Controller drivers;
• Mustek MDC800 USB digital camera driver;
• USB YUREX driver;
• Renesas USBHS Controller drivers;
• USB Type-C Connector System Software Interface driver;
• VFIO drivers;
• Framebuffer layer;
• TSM TDX Guest driver;
• Xen hypervisor drivers;
• File systems infrastructure;
• BTRFS file system;
• Ceph distributed file system;
• EROFS file system;
• Ext4 file system;
• F2FS file system;
• FUSE (File system in Userspace);
• GFS2 file system;
• HFS+ file system;
• Journaling layer for block devices (JBD2);
• Network file systems library;
• Network…

It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505)

It was discovered that some AMD Zen 2 processors did not properly isolate shared resources in the operation cache. A local attacker could possibly use this issue to corrupt instructions executed at a higher privilege level, resulting in privilege escalation. (CVE-2025-54518)

It was discovered that some AMD Zen 5 processors supporting RDSEED instruction did not properly handle entropy, potentially resulting in the consumption of insufficiently random values. A local attacker could possibly use this issue to influence the values returned by the RDSEED instruction causing loss of confidentiality and integrity. (CVE-2025-62626)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• ARM64 architecture;
• RISC-V architecture;
• S390 architecture;
• x86 architecture;
• Block layer subsystem;
• Cryptographic API;
• Compute Acceleration Framework;
• ACPI drivers;
• Serial ATA and Parallel ATA drivers;
• Drivers core;
• Power management core;
• DRBD Distributed Replicated Block Device drivers;
• Rados block device (RBD) driver;
• Compressed RAM block device driver;
• Bluetooth drivers;
• Bus devices;
• Character device driver;
• Clock framework and drivers;
• Data acquisition framework and drivers;
• Counter interface drivers;
• CPU frequency scaling framework;
• Hardware crypto device drivers;
• CXL (Compute Express Link) drivers;
• DMA engine subsystem;
• EDAC drivers;
• EFI core;
• GPU drivers;
• Greybus drivers;
• HID subsystem;
• Hardware monitoring drivers;
• I2C subsystem;
• IIO ADC drivers;
• IIO subsystem;
• InfiniBand drivers;
• Input Device (Miscellaneous) drivers;
• IRQ chip drivers;
• LED subsystem;
• Mailbox framework;
• Multiple devices driver;
• Media drivers;
• MediaTek SMI driver;
• NVIDIA Tegra memory controller driver;
• Fastrpc Driver;
• IBM Advanced System Management driver;
• MMC subsystem;
• MTD block device drivers;
• Network drivers;
• Ethernet bonding driver;
• Mellanox network drivers;
• Microsoft Azure Network Adapter (MANA) driver;
• STMicroelectronics network drivers;
• Ethernet team driver;
• MediaTek network drivers;
• Near Field Communication (NFC) drivers;
• NTB driver;
• NVDIMM (Non-Volatile Memory Device) drivers;
• NVME drivers;
• Device tree and open firmware driver;
• PCI subsystem;
• Pin controllers subsystem;
• x86 platform drivers;
• Broadcom BCM2835 power domain driver;
• Generic PM domains;
• i.MX PM domains;
• Remote Processor subsystem;
• S/390 drivers;
• SCSI subsystem;
• SLIMbus drivers;
• Freescale SoC drivers;
• Microchip PolarFire SoC system controller driver;
• SPI subsystem;
• Media staging drivers;
• Realtek RTL8723BS SDIO drivers;
• SM750 framebuffer staging driver;
• TCM subsystem;
• Thermal drivers;
• TTY drivers;
• UFS subsystem;
• Cadence USB3 driver;
• USB Device Class drivers;
• ULPI bus;
• USB core drivers;
• DesignWare USB2 driver;
• USB Gadget drivers;
• USB Host Controller drivers;
• Mustek MDC800 USB digital camera driver;
• USB YUREX driver;
• Renesas USBHS Controller drivers;
• USB Type-C Connector System Software Interface driver;
• VFIO drivers;
• Framebuffer layer;
• TSM TDX Guest driver;
• Xen hypervisor drivers;
• File systems infrastructure;
• BTRFS file system;
• Ceph distributed file system;
• EROFS file system;
• Ext4 file system;
• F2FS file system;
• FUSE (File system in Userspace);
• GFS2 file system;
• HFS+ file system;
• Journaling layer for block devices (JBD2);
• Network file systems library;
• Network…