CVE-2023-5633

The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration enabled, a local, unprivileged user could potentially use this flaw to escalate their privileges.

The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration enabled, a local, unprivileged user could potentially use this flaw to escalate their privileges.

The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration enabled, a local, unprivileged user could potentially use this flaw to escalate their privileges.

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

Security Fix(es):

• kernel: use after free in unix_stream_sendpage (CVE-2023-4622)
• kernel: vmwgfx: reference count issue leads to use-after-free in surface handling (CVE-2023-5633)
• kernel: netfilter: potential slab-out-of-bound access due to integer underflow (CVE-2023-42753)
• Kernel: UAF during login when accessing the shost ipaddress (CVE-2023-2162)
• hw amd: Return Address Predictor vulnerability leading to information disclosure (CVE-2023-20569)

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.

Bug Fix(es):

• Backport OVS l4 Symmetric Hashing to almalinux-8 (JIRA:AlmaLinux-12746)
• Unbounded memory usage by TCP for receive buffers (JIRA:AlmaLinux-15096)
• various kind of guests freeze on rhel 8.8 (JIRA:AlmaLinux-15121)
• AlmaLinux 8: netfilter: conntrack: Fix gre tunneling over ipv6 (JIRA:AlmaLinux-15259)
• NFSv4.1 needs to handle ENOENT error from GETDEVICEINFO (JIRA:AlmaLinux-16407)
• DM multipath showing failed path for an nvme-o-FC LUN when performing I/O operations (JIRA:AlmaLinux-14718)

This kernel update is based on upstream 6.5.11 and fixes or adds mitigations for at least the following security issues:

A use-after-free vulnerability was found in drivers/nvme/target/tcp.cinnvmet_tcp_free_crypto` due to a logical bug in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a malicious user to cause a use-after-free and double-free problem, which may permit remote code execution or lead to local privilege escalation in case that the attacker already has local privileges. (CVE-2023-5178)

x86: KVM: SVM: always update the x2avic msr interception: The following problem exists since x2avic was enabled in the KVM: svm_set_x2apic_msr_interception is called to enable the interception of the x2apic msrs. In particular it is called at the moment the guest resets its apic. Assuming that the guest's apic is in x2apic mode, the reset will bring it back to the xapic mode. The svm_set_x2apic_msr_interception however has an erroneous check for '!apic_x2apic_mode()' which prevents it from doing anything in this case. As a result of this, all x2apic msrs are left unintercepted, and that exposes the bare metal x2apic (if enabled) to the guest. Removing the erroneous '!apic_x2apic_mode()' check fixes that. (CVE-2023-5090)

In unprivileged Xen guests event handling can cause a deadlock with Xen console handling. The evtchn_rwlock and the hvc_lock are taken in opposite sequence in __hvc_poll() and in Xen console IRQ handling. This is fixed by xen/events: replace evtchn_rwlock with RCU (CVE-2023-34324)

A use-after-free vulnerability in the Linux kernel's fs/smb/client component can be exploited to achieve local privilege escalation. In case of an error in smb3_fs_context_parse_param, ctx->password was freed but the field was not set to NULL which could lead to double free. We recommend upgrading past commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705 (CVE-2023-5345)

A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (CVE-2023-39189)

The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration enabled, a local, unprivileged user could potentially use this flaw to escalate their privileges. (CVE-2023-5633)

A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer. We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it. (CVE-2023-46813)

A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific socket configuration, which could allow a local user to crash the system or escalate their privileges on the system. (CVE-2023-6176)

Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an unauthenticated nearby device to spoof the BD_ADDR of…

This kernel update is based on upstream 6.5.11 and fixes or adds mitigations for at least the following security issues:

A use-after-free vulnerability was found in drivers/nvme/target/tcp.cinnvmet_tcp_free_crypto` due to a logical bug in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a malicious user to cause a use-after-free and double-free problem, which may permit remote code execution or lead to local privilege escalation in case that the attacker already has local privileges. (CVE-2023-5178)

x86: KVM: SVM: always update the x2avic msr interception: The following problem exists since x2avic was enabled in the KVM: svm_set_x2apic_msr_interception is called to enable the interception of the x2apic msrs. In particular it is called at the moment the guest resets its apic. Assuming that the guest's apic is in x2apic mode, the reset will bring it back to the xapic mode. The svm_set_x2apic_msr_interception however has an erroneous check for '!apic_x2apic_mode()' which prevents it from doing anything in this case. As a result of this, all x2apic msrs are left unintercepted, and that exposes the bare metal x2apic (if enabled) to the guest. Removing the erroneous '!apic_x2apic_mode()' check fixes that. (CVE-2023-5090)

In unprivileged Xen guests event handling can cause a deadlock with Xen console handling. The evtchn_rwlock and the hvc_lock are taken in opposite sequence in __hvc_poll() and in Xen console IRQ handling. This is fixed by xen/events: replace evtchn_rwlock with RCU (CVE-2023-34324)

A use-after-free vulnerability in the Linux kernel's fs/smb/client component can be exploited to achieve local privilege escalation. In case of an error in smb3_fs_context_parse_param, ctx->password was freed but the field was not set to NULL which could lead to double free. We recommend upgrading past commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705 (CVE-2023-5345)

A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (CVE-2023-39189)

The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration enabled, a local, unprivileged user could potentially use this flaw to escalate their privileges. (CVE-2023-5633)

A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer. We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it. (CVE-2023-46813)

A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific socket configuration, which could allow a local user to crash the system or escalate their privileges on the system. (CVE-2023-6176)

Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an unauthenticated nearby device to spoof the BD_ADDR of…

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: use after free in unix_stream_sendpage (CVE-2023-4622)

• kernel: vmwgfx: reference count issue leads to use-after-free in surface handling (CVE-2023-5633)

• kernel: netfilter: potential slab-out-of-bound access due to integer underflow (CVE-2023-42753)

• Kernel: UAF during login when accessing the shost ipaddress (CVE-2023-2162)

• hw amd: Return Address Predictor vulnerability leading to information disclosure (CVE-2023-20569)

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.

Bug Fix(es):

• kernel-rt: update RT source tree to the latest Rocky Linux-8.9.z1 Batch (JIRA:Rocky Linux-17347)

The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-6176: Fixed a denial of service in the cryptographic algorithm scatterwalk functionality (bsc#1217332).
• CVE-2023-2006: Fixed a race condition in the RxRPC network protocol (bsc#1210447).
• CVE-2023-5633: Fixed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface (bsc#1216527).
• CVE-2023-39197: Fixed a out-of-bounds read in nf_conntrack_dccp_packet() (bsc#1216976).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-6039: Fixed a use-after-free in lan78xx_disconnect in drivers/net/usb/lan78xx.c (bsc#1217068).
• CVE-2023-45863: Fixed a out-of-bounds write in fill_kobj_path() (bsc#1216058).
• CVE-2023-5158: Fixed a denial of service in vringh_kiov_advance() in drivers/vhost/vringh.c in the host side of a virtio ring (bsc#1215710).
• CVE-2023-45871: Fixed an issue in the IGB driver, where the buffer size may not be adequate for frames larger than the MTU (bsc#1216259).
• CVE-2023-5717: Fixed a heap out-of-bounds write vulnerability in the Performance Events component (bsc#1216584).
• CVE-2023-39198: Fixed a race condition leading to use-after-free in qxl_mode_dumb_create() (bsc#1216965).
• CVE-2023-25775: Fixed improper access control in the Intel Ethernet Controller RDMA driver (bsc#1216959).
• CVE-2023-46862: Fixed a NULL pointer dereference in io_uring_show_fdinfo() (bsc#1216693).

The following non-security bugs were fixed:

• ACPI: FPDT: properly handle invalid FPDT subtables (git-fixes).
• ACPI: resource: Do IRQ override on TongFang GMxXGxx (git-fixes).
• ACPI: resource: Skip IRQ override on ASUS ExpertBook B1402CVA (git-fixes).
• ACPI: sysfs: Fix create_pnp_modalias() and create_of_modalias() (git-fixes).
• ALSA: hda/realtek - ALC287 Realtek I2S speaker platform support (git-fixes).
• ALSA: hda/realtek - Add Dell ALC295 to pin fall back table (git-fixes).
• ALSA: hda/realtek - Enable internal speaker of ASUS K6500ZC (git-fixes).
• ALSA: hda/realtek: Add quirk for ASUS UX7602ZM (git-fixes).
• ALSA: hda/realtek: Add quirks for ASUS 2024 Zenbooks (git-fixes).
• ALSA: hda/realtek: Add quirks for HP Laptops (git-fixes).
• ALSA: hda/realtek: Add support dual speaker for Dell (git-fixes).
• ALSA: hda/realtek: Enable Mute LED on HP 255 G10 (git-fixes).
• ALSA: hda/realtek: Enable Mute LED on HP 255 G8 (git-fixes).
• ALSA: hda: ASUS UM5302LA: Added quirks for cs35L41/10431A83 on i2c bus (git-fixes).
• ALSA: hda: Disable power-save on KONTRON SinglePC (bsc#1217140).
• ALSA: hda: Fix possible null-ptr-deref when assigning a stream (git-fixes).
• ALSA: hda: cs35l41: Fix unbalanced pm_runtime_get() (git-fixes).
• ALSA: hda: cs35l41: Undo runtime PM changes at driver exit time (git-fixes).
• ALSA: hda: intel-dsp-config: Fix JSL Chromebook quirk detection (git-fixes).
• ALSA: info: Fix potential deadlock at disconnection (git-fixes).
• ALSA: usb-audio: add quirk flag to enable native DSD for McIntosh devices (git-fixes).
• ARM: 9321/1: memset: cast the constant byte to unsigned char (git-fixes).
• ASoC: Intel: Skylake: Fix mem leak when parsing UUIDs fails (git-fixes).
• ASoC: SOF: core: Ensure sof_ops_free() is still called when probe never ran (git-fixes).
• ASoC: ams-delta.c: use component after check (git-fixes).
• ASoC: codecs: wsa-macro: fix uninitialized stack variables with name prefix (git-fixes).
• ASoC: cs35l41: Undo runtime PM changes at driver exit time (git-fixes).
• ASoC: cs35l41: Verify PM runtime resume errors in IRQ handler (git-fixes).
• ASoC: fsl: Fix PM disable depth imbalance in fsl_easrc_probe (git-fixes).
• ASoC: fsl: mpc5200_dma.c: Fix warning of Function parameter or member not described (git-fixes).
• ASoC: hdmi-codec: register hpd callback on component probe (git-fixes).
• ASoC: rt5650: fix the wrong result…

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-2006: Fixed a race condition in the RxRPC network protocol (bsc#1210447).
• CVE-2023-25775: Fixed improper access control in the Intel Ethernet Controller RDMA driver (bsc#1216959).
• CVE-2023-3777: Fixed a use-after-free vulnerability in netfilter: nf_tables component can be exploited to achieve local privilege escalation. (bsc#1215095)
• CVE-2023-39197: Fixed a out-of-bounds read in nf_conntrack_dccp_packet() (bsc#1216976).
• CVE-2023-39198: Fixed a race condition leading to use-after-free in qxl_mode_dumb_create() (bsc#1216965).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-45863: Fixed a out-of-bounds write in fill_kobj_path() (bsc#1216058).
• CVE-2023-45871: Fixed an issue in the IGB driver, where the buffer size may not be adequate for frames larger than the MTU (bsc#1216259).
• CVE-2023-46813: Fixed SEV-ES local priv escalation (bsc#1212649).
• CVE-2023-46862: Fixed a NULL pointer dereference in io_uring_show_fdinfo() (bsc#1216693).
• CVE-2023-5158: Fixed a denial of service in vringh_kiov_advance() in drivers/vhost/vringh.c in the host side of a virtio ring (bsc#1215710).
• CVE-2023-5633: Fixed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface (bsc#1216527).
• CVE-2023-5717: Fixed a heap out-of-bounds write vulnerability in the Performance Events component (bsc#1216584).
• CVE-2023-6039: Fixed a use-after-free in lan78xx_disconnect in drivers/net/usb/lan78xx.c (bsc#1217068).
• CVE-2023-6176: Fixed a denial of service in the cryptographic algorithm scatterwalk functionality (bsc#1217332).

The following non-security bugs were fixed:

• acpi: fpdt: properly handle invalid fpdt subtables (git-fixes).
• acpi: resource: do irq override on tongfang gmxxgxx (git-fixes).
• acpi: resource: skip irq override on asus expertbook b1402cva (git-fixes).
• acpi: sysfs: fix create_pnp_modalias() and create_of_modalias() (git-fixes).
• alsa: hda/realtek - add dell alc295 to pin fall back table (git-fixes).
• alsa: hda/realtek - alc287 realtek i2s speaker platform support (git-fixes).
• alsa: hda/realtek - enable internal speaker of asus k6500zc (git-fixes).
• alsa: hda/realtek: add quirk for asus ux7602zm (git-fixes).
• alsa: hda/realtek: add quirks for asus 2024 zenbooks (git-fixes).
• alsa: hda/realtek: add quirks for hp laptops (git-fixes).
• alsa: hda/realtek: add support dual speaker for dell (git-fixes).
• alsa: hda/realtek: enable mute led on hp 255 g10 (git-fixes).
• alsa: hda/realtek: enable mute led on hp 255 g8 (git-fixes).
• alsa: hda: asus um5302la: added quirks for cs35l41/10431a83 on i2c bus (git-fixes).
• alsa: hda: cs35l41: fix unbalanced pm_runtime_get() (git-fixes).
• alsa: hda: cs35l41: undo runtime pm changes at driver exit time (git-fixes).
• alsa: hda: disable power-save on kontron singlepc (bsc#1217140).
• alsa: hda: fix possible null-ptr-deref when assigning a stream (git-fixes).
• alsa: hda: intel-dsp-config: fix jsl chromebook quirk detection (git-fixes).
• alsa: info: fix potential deadlock at disconnection (git-fixes).
• alsa: usb-audio: add quirk flag to enable native dsd for mcintosh devices (git-fixes).
• arm/xen: fix xen_vcpu_info allocation alignment (git-fixes).
• arm64: add cortex-a520 cpu part definition (git-fixes)
• arm64: allow kprobes on el0 handlers (git-fixes)
• arm64: armv8_deprecated move emulation functions (git-fixes)
• arm64: armv8_deprecated: fix unused-function error (git-fixes)
• arm64: armv8_deprecated: fold ops into insn_emulation (git-fixes)
• arm64: armv8_deprecated: move aarch32 helper earlier (git-fixes)
• arm64: armv8_deprecated: rework deprected instruction handling (git-fixes)
• arm64: consistently pass esr_elx to die() (git-fixes)
• arm64: die(): pass 'err' as…

The SUSE Linux Enterprise 15 SP5 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-2006: Fixed a race condition in the RxRPC network protocol (bsc#1210447).
• CVE-2023-25775: Fixed improper access control in the Intel Ethernet Controller RDMA driver (bsc#1216959).
• CVE-2023-39197: Fixed a out-of-bounds read in nf_conntrack_dccp_packet() (bsc#1216976).
• CVE-2023-39198: Fixed a race condition leading to use-after-free in qxl_mode_dumb_create() (bsc#1216965).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-45863: Fixed a out-of-bounds write in fill_kobj_path() (bsc#1216058).
• CVE-2023-45871: Fixed an issue in the IGB driver, where the buffer size may not be adequate for frames larger than the MTU (bsc#1216259).
• CVE-2023-46862: Fixed a NULL pointer dereference in io_uring_show_fdinfo() (bsc#1216693).
• CVE-2023-5158: Fixed a denial of service in vringh_kiov_advance() in drivers/vhost/vringh.c in the host side of a virtio ring (bsc#1215710).
• CVE-2023-5633: Fixed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface (bsc#1216527).
• CVE-2023-5717: Fixed a heap out-of-bounds write vulnerability in the Performance Events component (bsc#1216584).
• CVE-2023-6039: Fixed a use-after-free in lan78xx_disconnect in drivers/net/usb/lan78xx.c (bsc#1217068).
• CVE-2023-6176: Fixed a denial of service in the cryptographic algorithm scatterwalk functionality (bsc#1217332).

The following non-security bugs were fixed:

• acpi: fpdt: properly handle invalid fpdt subtables (git-fixes).
• acpi: resource: do irq override on tongfang gmxxgxx (git-fixes).
• acpi: resource: skip irq override on asus expertbook b1402cva (git-fixes).
• acpi: sysfs: fix create_pnp_modalias() and create_of_modalias() (git-fixes).
• alsa: hda/realtek - add dell alc295 to pin fall back table (git-fixes).
• alsa: hda/realtek - alc287 realtek i2s speaker platform support (git-fixes).
• alsa: hda/realtek - enable internal speaker of asus k6500zc (git-fixes).
• alsa: hda/realtek: add quirk for asus ux7602zm (git-fixes).
• alsa: hda/realtek: add quirks for asus 2024 zenbooks (git-fixes).
• alsa: hda/realtek: add quirks for hp laptops (git-fixes).
• alsa: hda/realtek: add support dual speaker for dell (git-fixes).
• alsa: hda/realtek: enable mute led on hp 255 g10 (git-fixes).
• alsa: hda/realtek: enable mute led on hp 255 g8 (git-fixes).
• alsa: hda: asus um5302la: added quirks for cs35l41/10431a83 on i2c bus (git-fixes).
• alsa: hda: cs35l41: fix unbalanced pm_runtime_get() (git-fixes).
• alsa: hda: cs35l41: undo runtime pm changes at driver exit time (git-fixes).
• alsa: hda: disable power-save on kontron singlepc (bsc#1217140).
• alsa: hda: fix possible null-ptr-deref when assigning a stream (git-fixes).
• alsa: hda: intel-dsp-config: fix jsl chromebook quirk detection (git-fixes).
• alsa: info: fix potential deadlock at disconnection (git-fixes).
• alsa: usb-audio: add quirk flag to enable native dsd for mcintosh devices (git-fixes).
• arm/xen: fix xen_vcpu_info allocation alignment (git-fixes).
• arm64: add cortex-a520 cpu part definition (git-fixes)
• arm64: allow kprobes on el0 handlers (git-fixes)
• arm64: armv8_deprecated move emulation functions (git-fixes)
• arm64: armv8_deprecated: fix unused-function error (git-fixes)
• arm64: armv8_deprecated: fold ops into insn_emulation (git-fixes)
• arm64: armv8_deprecated: move aarch32 helper earlier (git-fixes)
• arm64: armv8_deprecated: rework deprected instruction handling (git-fixes)
• arm64: consistently pass esr_elx to die() (git-fixes)
• arm64: die(): pass 'err' as long (git-fixes)
• arm64: factor insn read out of call_undef_hook() (git-fixes)
• arm64: factor out el1 ssbs emulation hook (git-fixes)
• arm64: report el1 undefs better (git-fixes)
• arm64: rework bti exception handling…

The SUSE Linux Enterprise 15 SP7 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2023-53261: coresight: Fix memory leak in acpi_buffer->pointer (bsc#1249770).
• CVE-2024-58090: sched/core: Prevent rescheduling when interrupts are disabled (bsc#1240324).
• CVE-2025-22022: usb: xhci: Apply the link chain quirk on NEC isoc endpoints (bsc#1241292).
• CVE-2025-38119: scsi: core: ufs: Fix a hang in the error handler (bsc#1245700).
• CVE-2025-38216: iommu/vt-d: Restore context entry setup order for aliased devices (bsc#1245963).
• CVE-2025-38234: sched/rt: Fix race in push_rt_task (bsc#1246057).
• CVE-2025-38263: bcache: fix NULL pointer in cache_set_flush() (bsc#1246248).
• CVE-2025-38351: KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush (bsc#1246782).
• CVE-2025-38402: idpf: return 0 size for RSS key if not supported (bsc#1247262).
• CVE-2025-38408: genirq/irq_sim: Initialize work context pointers properly (bsc#1247126).
• CVE-2025-38418: remoteproc: core: Release rproc->clean_table after rproc_attach() fails (bsc#1247137).
• CVE-2025-38419: remoteproc: core: Cleanup acquired resources when rproc_handle_resources() fails in rproc_attach() (bsc#1247136).
• CVE-2025-38456: ipmi:msghandler: Fix potential memory corruption in ipmi_create_user() (bsc#1247099).
• CVE-2025-38466: perf: Revert to requiring CAP_SYS_ADMIN for uprobes (bsc#1247442).
• CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
• CVE-2025-38514: rxrpc: Fix oops due to non-existence of prealloc backlog struct (bsc#1248202).
• CVE-2025-38526: ice: add NULL check in eswitch lag check (bsc#1248192).
• CVE-2025-38527: smb: client: fix use-after-free in cifs_oplock_break (bsc#1248199).
• CVE-2025-38533: net: libwx: fix the using of Rx buffer DMA (bsc#1248200).
• CVE-2025-38544: rxrpc: Fix bug due to prealloc collision (bsc#1248225).
• CVE-2025-38556: HID: core: Harden s32ton() against conversion to 0 bits (bsc#1248296).
• CVE-2025-38574: pptp: ensure minimal skb length in pptp_xmit() (bsc#1248365).
• CVE-2025-38584: padata: Fix pd UAF once and for all (bsc1248343).
• CVE-2025-38590: net/mlx5e: Remove skb secpath if xfrm state is not found (bsc#1248360).
• CVE-2025-38593: kABI workaround for bluetooth discovery_state change (bsc#1248357).
• CVE-2025-38595: xen: fix UAF in dmabuf_exp_from_pages() (bsc#1248380).
• CVE-2025-38597: drm/rockchip: vop2: fail cleanly if missing a primary plane for a video-port (bsc#1248378).
• CVE-2025-38605: wifi: ath12k: Pass ab pointer directly to ath12k_dp_tx_get_encap_type() (bsc#1248334).
• CVE-2025-38614: eventpoll: Fix semi-unbounded recursion (bsc#1248392).
• CVE-2025-38616: tls: handle data disappearing from under the TLS ULP (bsc#1248512).
• CVE-2025-38622: net: drop UFO packets in udp_rcv_segment() (bsc#1248619).
• CVE-2025-38623: PCI: pnv_php: Fix surprise plug detection and recovery (bsc#1248610).
• CVE-2025-38628: vdpa/mlx5: Fix release of uninitialized resources on error path (bsc#1248616).
• CVE-2025-38639: netfilter: xt_nfacct: do not assume acct name is null-terminated (bsc#1248674).
• CVE-2025-38640: bpf: Disable migration in nf_hook_run_bpf() (bsc#1248622).
• CVE-2025-38643: wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac() (bsc#1248681).
• CVE-2025-38645: net/mlx5: Check device memory pointer before usage (bsc#1248626).
• CVE-2025-38659: gfs2: No more self recovery (bsc#1248639).
• CVE-2025-38660: [ceph] parse_longname(): strrchr() expects NUL-terminated string (bsc#1248634).
• CVE-2025-38664: ice: Fix a null pointer dereference in ice_copy_and_init_pkg() (bsc#1248628).
• CVE-2025-38668: regulator: core: fix NULL dereference on unbind due to stale coupling data (bsc#1248647).
• CVE-2025-38676: iommu/amd: Avoid stack buffer overflow from kernel cmdline (bsc#1248775).
• CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249126).
• CVE-2025-38679: media:…

The SUSE Linux Enterprise 15 SP7 Azure kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2023-53261: coresight: Fix memory leak in acpi_buffer->pointer (bsc#1249770).
• CVE-2024-46733: btrfs: fix qgroup reserve leaks in cow_file_range (bsc#1230708).
• CVE-2024-58090: sched/core: Prevent rescheduling when interrupts are disabled (bsc#1240324).
• CVE-2025-22022: usb: xhci: Apply the link chain quirk on NEC isoc endpoints (bsc#1241292).
• CVE-2025-37885: KVM: x86: Reset IRTE to host control if new route isn't postable (bsc#1242960).
• CVE-2025-38006: net: mctp: Do not access ifa_index when missing (bsc#1244930).
• CVE-2025-38075: scsi: target: iscsi: Fix timeout on deleted connection (bsc#1244734).
• CVE-2025-38103: HID: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse() (bsc#1245663).
• CVE-2025-38119: scsi: core: ufs: Fix a hang in the error handler (bsc#1245700).
• CVE-2025-38125: net: stmmac: make sure that ptp_rate is not 0 before configuring EST (bsc#1245710).
• CVE-2025-38146: net: openvswitch: Fix the dead loop of MPLS parse (bsc#1245767).
• CVE-2025-38160: clk: bcm: rpi: Add NULL check in raspberrypi_clk_register() (bsc#1245780).
• CVE-2025-38184: tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer (bsc#1245956).
• CVE-2025-38185: atm: atmtcp: Free invalid length skb in atmtcp_c_send() (bsc#1246012).
• CVE-2025-38190: atm: Revert atm_account_tx() if copy_from_iter_full() fails (bsc#1245973).
• CVE-2025-38201: netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX (bsc#1245977).
• CVE-2025-38205: drm/amd/display: Avoid divide by zero by initializing dummy pitch to 1 (bsc#1246005).
• CVE-2025-38208: smb: client: add NULL check in automount_fullpath (bsc#1245815).
• CVE-2025-38216: iommu/vt-d: Restore context entry setup order for aliased devices (bsc#1245963).
• CVE-2025-38234: sched/rt: Fix race in push_rt_task (bsc#1246057).
• CVE-2025-38245: atm: Release atm_dev_mutex after removing procfs in atm_dev_deregister() (bsc#1246193).
• CVE-2025-38251: atm: clip: prevent NULL deref in clip_push() (bsc#1246181).
• CVE-2025-38263: bcache: fix NULL pointer in cache_set_flush() (bsc#1246248).
• CVE-2025-38351: KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush (bsc#1246782).
• CVE-2025-38360: drm/amd/display: Add more checks for DSC / HUBP ONO guarantees (bsc#1247078).
• CVE-2025-38402: idpf: return 0 size for RSS key if not supported (bsc#1247262).
• CVE-2025-38408: genirq/irq_sim: Initialize work context pointers properly (bsc#1247126).
• CVE-2025-38418: remoteproc: core: Release rproc->clean_table after rproc_attach() fails (bsc#1247137).
• CVE-2025-38419: remoteproc: core: Cleanup acquired resources when rproc_handle_resources() fails in rproc_attach() (bsc#1247136).
• CVE-2025-38439: bnxt_en: Set DMA unmap len correctly for XDP_REDIRECT (bsc#1247155).
• CVE-2025-38440: net/mlx5e: Fix race between DIM disable and net_dim() (bsc#1247290).
• CVE-2025-38441: netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto() (bsc#1247167).
• CVE-2025-38444: raid10: cleanup memleak at raid10_make_request (bsc#1247162).
• CVE-2025-38445: md/raid1: Fix stack memory use after return in raid1_reshape (bsc#1247229).
• CVE-2025-38456: ipmi:msghandler: Fix potential memory corruption in ipmi_create_user() (bsc#1247099).
• CVE-2025-38458: atm: clip: Fix NULL pointer dereference in vcc_sendmsg() (bsc#1247116).
• CVE-2025-38459: atm: clip: Fix infinite recursive call of clip_push() (bsc#1247119).
• CVE-2025-38464: tipc: Fix use-after-free in tipc_conn_close() (bsc#1247112).
• CVE-2025-38466: perf: Revert to requiring CAP_SYS_ADMIN for uprobes (bsc#1247442).
• CVE-2025-38472: netfilter: nf_conntrack: fix crash due to removal of uninitialised entry (bsc#1247313).
• CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
• CVE-2025-38490: net: libwx: remove duplicate…

The SUSE Linux Enterprise 15 SP7 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2023-53261: coresight: Fix memory leak in acpi_buffer->pointer (bsc#1249770).
• CVE-2024-58090: sched/core: Prevent rescheduling when interrupts are disabled (bsc#1240324).
• CVE-2025-22022: usb: xhci: Apply the link chain quirk on NEC isoc endpoints (bsc#1241292).
• CVE-2025-38119: scsi: core: ufs: Fix a hang in the error handler (bsc#1245700).
• CVE-2025-38216: iommu/vt-d: Restore context entry setup order for aliased devices (bsc#1245963).
• CVE-2025-38234: sched/rt: Fix race in push_rt_task (bsc#1246057).
• CVE-2025-38263: bcache: fix NULL pointer in cache_set_flush() (bsc#1246248).
• CVE-2025-38351: KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush (bsc#1246782).
• CVE-2025-38402: idpf: return 0 size for RSS key if not supported (bsc#1247262).
• CVE-2025-38408: genirq/irq_sim: Initialize work context pointers properly (bsc#1247126).
• CVE-2025-38418: remoteproc: core: Release rproc->clean_table after rproc_attach() fails (bsc#1247137).
• CVE-2025-38419: remoteproc: core: Cleanup acquired resources when rproc_handle_resources() fails in rproc_attach() (bsc#1247136).
• CVE-2025-38456: ipmi:msghandler: Fix potential memory corruption in ipmi_create_user() (bsc#1247099).
• CVE-2025-38466: perf: Revert to requiring CAP_SYS_ADMIN for uprobes (bsc#1247442).
• CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
• CVE-2025-38514: rxrpc: Fix oops due to non-existence of prealloc backlog struct (bsc#1248202).
• CVE-2025-38526: ice: add NULL check in eswitch lag check (bsc#1248192).
• CVE-2025-38527: smb: client: fix use-after-free in cifs_oplock_break (bsc#1248199).
• CVE-2025-38533: net: libwx: fix the using of Rx buffer DMA (bsc#1248200).
• CVE-2025-38544: rxrpc: Fix bug due to prealloc collision (bsc#1248225).
• CVE-2025-38556: HID: core: Harden s32ton() against conversion to 0 bits (bsc#1248296).
• CVE-2025-38574: pptp: ensure minimal skb length in pptp_xmit() (bsc#1248365).
• CVE-2025-38584: padata: Fix pd UAF once and for all (bsc1248343).
• CVE-2025-38590: net/mlx5e: Remove skb secpath if xfrm state is not found (bsc#1248360).
• CVE-2025-38593: kABI workaround for bluetooth discovery_state change (bsc#1248357).
• CVE-2025-38595: xen: fix UAF in dmabuf_exp_from_pages() (bsc#1248380).
• CVE-2025-38597: drm/rockchip: vop2: fail cleanly if missing a primary plane for a video-port (bsc#1248378).
• CVE-2025-38614: eventpoll: Fix semi-unbounded recursion (bsc#1248392).
• CVE-2025-38616: tls: handle data disappearing from under the TLS ULP (bsc#1248512).
• CVE-2025-38622: net: drop UFO packets in udp_rcv_segment() (bsc#1248619).
• CVE-2025-38623: PCI: pnv_php: Fix surprise plug detection and recovery (bsc#1248610).
• CVE-2025-38628: vdpa/mlx5: Fix release of uninitialized resources on error path (bsc#1248616).
• CVE-2025-38639: netfilter: xt_nfacct: do not assume acct name is null-terminated (bsc#1248674).
• CVE-2025-38640: bpf: Disable migration in nf_hook_run_bpf() (bsc#1248622).
• CVE-2025-38643: wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac() (bsc#1248681).
• CVE-2025-38645: net/mlx5: Check device memory pointer before usage (bsc#1248626).
• CVE-2025-38659: gfs2: No more self recovery (bsc#1248639).
• CVE-2025-38660: [ceph] parse_longname(): strrchr() expects NUL-terminated string (bsc#1248634).
• CVE-2025-38664: ice: Fix a null pointer dereference in ice_copy_and_init_pkg() (bsc#1248628).
• CVE-2025-38676: iommu/amd: Avoid stack buffer overflow from kernel cmdline (bsc#1248775).
• CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249126).
• CVE-2025-38679: media: venus: Fix OOB read due to missing payload bound check (bsc#1249202).
• CVE-2025-38684: net/sched: ets: use old 'nbands' while purging unused classes (bsc#1249156).
• CVE-2025-38701: ext4: do not BUG when…

Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-31085)

Bien Pham discovered that the netfiler subsystem in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4244)

Maxim Levitsky discovered that the KVM nested virtualization (SVM) implementation for AMD processors in the Linux kernel did not properly handle x2AVIC MSRs. An attacker in a guest VM could use this to cause a denial of service (host kernel crash). (CVE-2023-5090)

It was discovered that the SMB network file sharing protocol implementation in the Linux kernel did not properly handle certain error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5345)

Murray McAllister discovered that the VMware Virtual GPU DRM driver in the Linux kernel did not properly handle memory objects when storing surfaces, leading to a use-after-free vulnerability. A local attacker in a guest VM could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5633)

Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service (host domain crash). (CVE-2023-46838)

It was discovered that the Habana's AI Processors driver in the Linux kernel did not properly initialize certain data structures before passing them to user space. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2023-50431)

Murray McAllister discovered that the VMware Virtual GPU DRM driver in the Linux kernel did not properly handle memory objects when storing surfaces, leading to a use-after-free vulnerability. A local attacker in a guest VM could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5633)

It was discovered that the CIFS network file system implementation in the Linux kernel did not properly validate certain SMB messages, leading to an out-of-bounds read vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-6610)

It was discovered that the VirtIO subsystem in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to possibly expose sensitive information (kernel memory). (CVE-2024-0340)

Lonial Con discovered that the netfilter subsystem in the Linux kernel did not properly handle element deactivation in certain cases, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2024-1085)

Notselwyn discovered that the netfilter subsystem in the Linux kernel did not properly handle verdict parameters in certain cases, leading to a use- after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2024-1086)

Chenyuan Yang discovered that the RDS Protocol implementation in the Linux kernel contained an out-of-bounds read vulnerability. An attacker could use this to possibly cause a denial of service (system crash). (CVE-2024-23849)

It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to a null pointer dereference vulnerability. A privileged local attacker could use this to possibly cause a denial of service (system crash). (CVE-2024-24860)

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:

• Architecture specifics;
• Block layer;
• ACPI drivers;
• Android drivers;
• EDAC drivers;
• GPU drivers;
• InfiniBand drivers;
• Media drivers;
• Multifunction device drivers;
• MTD block device drivers;
• Network drivers;
• NVME drivers;
• PHY drivers;
• PWM drivers;
• SCSI drivers;
• SPMI drivers;
• TTY drivers;
• Userspace I/O drivers;
• Ceph distributed file system;
• EFI Variable file system;
• Ext4 file system;
• F2FS file system;
• GFS2 file system;
• JFS file system;
• SMB network file system;
• BPF subsystem;
• Logical Link Layer;
• Netfilter;
• Unix domain sockets;
• AppArmor security module; (CVE-2024-26599, CVE-2023-52604, CVE-2023-52439, CVE-2024-26627, CVE-2024-26601, CVE-2024-26628, CVE-2023-52607, CVE-2023-52456, CVE-2023-52602, CVE-2023-52443, CVE-2023-52599, CVE-2023-52603, CVE-2024-26588, CVE-2024-26581, CVE-2023-52600, CVE-2024-26624, CVE-2023-52584, CVE-2024-26625, CVE-2023-52606, CVE-2023-52463, CVE-2023-52464, CVE-2023-52597, CVE-2023-52595, CVE-2023-52458, CVE-2023-52457, CVE-2023-52438, CVE-2023-52469, CVE-2023-52462, CVE-2024-26589, CVE-2024-26592, CVE-2024-26594, CVE-2023-52601, CVE-2023-52593, CVE-2023-52436, CVE-2023-52447, CVE-2023-52587, CVE-2023-52445,…