CVE-2020-36691

An issue was discovered in the Linux kernel before 5.8. lib/nlattr.c allows attackers to cause a denial of service (unbounded recursion) via a nested Netlink policy with a back reference.

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-1611: Fixed an use-after-free flaw in btrfs_search_slot (bsc#1209687).
• CVE-2020-36691: Fixed an issue which could allow attackers to cause a denial of service via a nested Netlink policy with a back reference (bsc#1209613).
• CVE-2023-28772: Fixed buffer overflow in seq_buf_putmem_hex in lib/seq_buf.c (bsc#1209549).
• CVE-2023-1513: Fixed an uninitialized portions of the kvm_debugregs structure that could be copied to userspace, causing an information leak (bsc#1209532).
• CVE-2023-28464: Fixed user-after-free that could lead to privilege escalation in hci_conn_cleanup in net/bluetooth/hci_conn.c (bsc#1209052).
• CVE-2021-3923: Fixed stack information leak vulnerability that could lead to kernel protection bypass in infiniband RDMA (bsc#1209778).
• CVE-2023-1390: Fixed remote DoS vulnerability in tipc_link_xmit() (bsc#1209289).
• CVE-2023-23455: Fixed a denial of service inside atm_tc_enqueue led by a type confusion (bsc#1207125).
• CVE-2023-1281: Fixed use after free that could lead to privilege escalation in tcindex (bsc#1209634).
• CVE-2017-5753: Fixed spectre V1 vulnerability on netlink (bsc#1209547).
• CVE-2017-5753: Fixed spectre vulnerability in prlimit (bsc#1209256).
• CVE-2023-28328: Fixed a denial of service issue in az6027 driver in drivers/media/usb/dev-usb/az6027.c (bsc#1209291).
• CVE-2022-20567: Fixed use after free that could lead to a local privilege escalation in pppol2tp_create of l2tp_ppp.c (bsc#1208850).
• CVE-2023-1076: Fixed incorrect UID assigned to tun/tap sockets (bsc#1208599).
• CVE-2023-1095: Fixed a NULL pointer dereference in nf_tables due to zeroed list head (bsc#1208777).

The following non-security bugs were fixed:

• applicom: Fix PCI device refcount leak in applicom_init() (git-fixes).
• ARM: 8702/1: head-common.S: Clear lr before jumping to start_kernel() (git-fixes)
• arm64: cmpxchg_double*: hazard against entire exchange variable (git-fixes)
• arm64: cpu_ops: fix a leaked reference by adding missing of_node_put (git-fixes)
• arm64: Discard .note.GNU-stack section (bsc#1203693 bsc#1209798).
• arm64: Do not forget syscall when starting a new thread. (git-fixes)
• arm64: Fix compiler warning from pte_unmap() with (git-fixes)
• arm64: fix oops in concurrently setting insn_emulation sysctls (git-fixes)
• arm64: kaslr: Reserve size of ARM64_MEMSTART_ALIGN in linear region (git-fixes)
• arm64: kprobe: make page to RO mode when allocate it (git-fixes)
• arm64: kpti: ensure patched kernel text is fetched from PoU (git-fixes)
• arm64: Mark __stack_chk_guard as __ro_after_init (git-fixes)
• arm64: psci: Avoid printing in cpu_psci_cpu_die() (git-fixes)
• arm64: psci: Reduce the waiting time for cpu_psci_cpu_kill() (git-fixes)
• arm64: unwind: Prohibit probing on return_address() (git-fixes)
• arm64: Use test_tsk_thread_flag() for checking TIF_SINGLESTEP (git-fixes)
• arm64/alternatives: do not patch up internal branches (git-fixes)
• arm64/alternatives: move length validation inside the subsection (git-fixes)
• arm64/alternatives: use subsections for replacement sequences (git-fixes)
• arm64/cpufeature: Fix field sign for DIT hwcap detection (git-fixes)
• arm64/mm: fix variable 'pud' set but not used (git-fixes)
• arm64/mm: return cpu_all_mask when node is NUMA_NO_NODE (git-fixes)
• arm64/vdso: Discard .note.gnu.property sections in vDSO (git-fixes)
• Bluetooth: btusb: Add VID:PID 13d3:3529 for Realtek RTL8821CE (git-fixes).
• Bluetooth: btusb: do not call kfree_skb() under spin_lock_irqsave() (git-fixes).
• crypto: arm64 - Fix unused variable compilation warnings of (git-fixes)
• dt-bindings: reset: meson8b: fix duplicate reset IDs (git-fixes).
• ftrace: Fix invalid address access in lookup_rec() when index is 0 (git-fixes).
• ima: Fix function name error in comment (git-fixes).
• Input: atmel_mxt_ts - fix double free in mxt_read_info_block…

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-1872:Fixed a use after free vulnerability in the io_uring subsystem, which could lead to local privilege escalation (bsc#1210414).
• CVE-2022-2196: Fixed a regression related to KVM that allowed for speculative execution attacks (bsc#1206992).
• CVE-2023-1670: Fixed a use after free in the Xircom 16-bit PCMCIA Ethernet driver. A local user could use this flaw to crash the system or potentially escalate their privileges on the system (bsc#1209871).
• CVE-2023-2162: Fixed an use-after-free flaw in iscsi_sw_tcp_session_create (bsc#1210647).
• CVE-2023-2176: A vulnerability was found in compare_netdev_and_ip in drivers/infiniband/core/cma.c in RDMA. The improper cleanup results in out-of-boundary read, where a local user can utilize this problem to crash the system or escalation of privilege (bsc#1210629).
• CVE-2023-1998: Fixed a use after free during login when accessing the shost ipaddress (bsc#1210506).
• CVE-2023-30772: Fixed a race condition and resultant use-after-free in da9150_charger_remove (bsc#1210329).
• CVE-2023-2008: A flaw was found in the fault handler of the udmabuf device driver. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code (bsc#1210453).
• CVE-2023-1855: Fixed a use after free in xgene_hwmon_remove (bsc#1210202).
• CVE-2020-36691: Fixed a denial of service (unbounded recursion) vulnerability via a nested Netlink policy with a back reference (bsc#1209613 bsc#1209777).
• CVE-2023-1990: Fixed a use after free in ndlc_remove (bsc#1210337).
• CVE-2023-1989: Fixed a use after free in btsdio_remove (bsc#1210336).
• CVE-2022-43945: Fixed a buffer overflow in the NFSD implementation (bsc#1205128).
• CVE-2023-1611: Fixed an use-after-free flaw in btrfs_search_slot (bsc#1209687).
• CVE-2023-1838: Fixed an use-after-free flaw in virtio network subcomponent. This flaw could allow a local attacker to crash the system and lead to a kernel information leak problem. (bsc#1210203).

The following non-security bugs were fixed:

• Drivers: vmbus: Check for channel allocation before looking up relids (git-fixes).
• Replace mkinitrd dependency with dracut (bsc#1202353).
• cifs: fix negotiate context parsing (bsc#1210301).

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-2124: Fixed an out of bound access in the XFS subsystem that could have lead to denial-of-service or potentially privilege escalation (bsc#1210498).
• CVE-2023-1872:Fixed a use after free vulnerability in the io_uring subsystem, which could lead to local privilege escalation (bsc#1210414).
• CVE-2022-2196: Fixed a regression related to KVM that allowed for speculative execution attacks (bsc#1206992).
• CVE-2023-1670: Fixed a use after free in the Xircom 16-bit PCMCIA Ethernet driver. A local user could use this flaw to crash the system or potentially escalate their privileges on the system (bsc#1209871).
• CVE-2023-2162: Fixed an use-after-free flaw in iscsi_sw_tcp_session_create (bsc#1210647).
• CVE-2023-2176: A vulnerability was found in compare_netdev_and_ip in drivers/infiniband/core/cma.c in RDMA. The improper cleanup results in out-of-boundary read, where a local user can utilize this problem to crash the system or escalation of privilege (bsc#1210629).
• CVE-2023-1998: Fixed a use after free during login when accessing the shost ipaddress (bsc#1210506).
• CVE-2023-30772: Fixed a race condition and resultant use-after-free in da9150_charger_remove (bsc#1210329).
• CVE-2023-2008: A flaw was found in the fault handler of the udmabuf device driver. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code (bsc#1210453).
• CVE-2023-1855: Fixed a use after free in xgene_hwmon_remove (bsc#1210202).
• CVE-2020-36691: Fixed a denial of service vulnerability via a nested Netlink policy with a back reference (bsc#1209777).
• CVE-2023-1990: Fixed a use after free in ndlc_remove (bsc#1210337).
• CVE-2023-1989: Fixed a use after free in btsdio_remove (bsc#1210336).
• CVE-2023-1611: Fixed an use-after-free flaw in btrfs_search_slot (bsc#1209687).
• CVE-2023-1838: Fixed an use-after-free flaw in virtio network subcomponent. This flaw could allow a local attacker to crash the system and lead to a kernel information leak problem. (bsc#1210203).

The following non-security bugs were fixed:

• Drivers: vmbus: Check for channel allocation before looking up relids (git-fixes).
• cifs: fix negotiate context parsing (bsc#1210301).
• keys: Fix linking a duplicate key to a keyring's assoc_array (bsc#1207088).
• vmxnet3: use gro callback when UPT is enabled (bsc#1209739).

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-2124: Fixed an out of bound access in the XFS subsystem that could have lead to denial-of-service or potentially privilege escalation (bsc#1210498).
• CVE-2023-1872:Fixed a use after free vulnerability in the io_uring subsystem, which could lead to local privilege escalation (bsc#1210414).
• CVE-2022-2196: Fixed a regression related to KVM that allowed for speculative execution attacks (bsc#1206992).
• CVE-2023-1670: Fixed a use after free in the Xircom 16-bit PCMCIA Ethernet driver. A local user could use this flaw to crash the system or potentially escalate their privileges on the system (bsc#1209871).
• CVE-2023-2162: Fixed an use-after-free flaw in iscsi_sw_tcp_session_create (bsc#1210647).
• CVE-2023-2176: A vulnerability was found in compare_netdev_and_ip in drivers/infiniband/core/cma.c in RDMA. The improper cleanup results in out-of-boundary read, where a local user can utilize this problem to crash the system or escalation of privilege (bsc#1210629).
• CVE-2023-1998: Fixed a use after free during login when accessing the shost ipaddress (bsc#1210506).
• CVE-2023-30772: Fixed a race condition and resultant use-after-free in da9150_charger_remove (bsc#1210329).
• CVE-2023-2008: A flaw was found in the fault handler of the udmabuf device driver. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code (bsc#1210453).
• CVE-2023-1855: Fixed a use after free in xgene_hwmon_remove (bsc#1210202).
• CVE-2020-36691: Fixed a denial of service vulnerability via a nested Netlink policy with a back reference (bsc#1209777).
• CVE-2023-1990: Fixed a use after free in ndlc_remove (bsc#1210337).
• CVE-2023-1989: Fixed a use after free in btsdio_remove (bsc#1210336).
• CVE-2022-43945: Fixed a buffer overflow in the NFSD implementation (bsc#1205128).
• CVE-2023-1611: Fixed an use-after-free flaw in btrfs_search_slot (bsc#1209687).
• CVE-2023-1838: Fixed an use-after-free flaw in virtio network subcomponent. This flaw could allow a local attacker to crash the system and lead to a kernel information leak problem. (bsc#1210203).

The following non-security bugs were fixed:

• Drivers: vmbus: Check for channel allocation before looking up relids (git-fixes).
• cifs: fix negotiate context parsing (bsc#1210301).
• keys: Fix linking a duplicate key to a keyring's assoc_array (bsc#1207088).
• vmxnet3: use gro callback when UPT is enabled (bsc#1209739).

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-2124: Fixed an out of bound access in the XFS subsystem that could have lead to denial-of-service or potentially privilege escalation (bsc#1210498).
• CVE-2023-1670: Fixed a use after free in the Xircom 16-bit PCMCIA Ethernet driver. A local user could use this flaw to crash the system or potentially escalate their privileges on the system (bsc#1209871).
• CVE-2023-2162: Fixed an use-after-free flaw in iscsi_sw_tcp_session_create (bsc#1210647).
• CVE-2023-1998: Fixed a use after free during login when accessing the shost ipaddress (bsc#1210506).
• CVE-2023-30772: Fixed a race condition and resultant use-after-free in da9150_charger_remove (bsc#1210329).
• CVE-2023-1855: Fixed a use after free in xgene_hwmon_remove (bsc#1210202).
• CVE-2023-1989: Fixed a use after free in btsdio_remove (bsc#1210336).
• CVE-2023-1990: Fixed a use after free in ndlc_remove (bsc#1210337).
• CVE-2022-43945: Fixed a buffer overflow in the NFSD implementation (bsc#1205128).
• CVE-2023-1611: Fixed an use-after-free flaw in btrfs_search_slot (bsc#1209687).
• CVE-2020-36691: Fixed a denial of service vulnerability via a nested Netlink policy with a back reference (bsc#1209777).

The following non-security bugs were fixed:

• cifs: fix negotiate context parsing (bsc#1210301).
• cred: allow get_cred() and put_cred() to be given NULL (bsc#1209887).

The SUSE Linux Enterprise 12 SP5 AZURE kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-2483: Fixed a use after free bug in emac_remove due caused by a race condition (bsc#1211037).
• CVE-2023-2124: Fixed an out of bound access in the XFS subsystem that could have lead to denial-of-service or potentially privilege escalation (bsc#1210498).
• CVE-2023-1670: Fixed a use after free in the Xircom 16-bit PCMCIA Ethernet driver. A local user could use this flaw to crash the system or potentially escalate their privileges on the system (bsc#1209871).
• CVE-2023-2162: Fixed an use-after-free flaw in iscsi_sw_tcp_session_create (bsc#1210647).
• CVE-2023-1998: Fixed a use after free during login when accessing the shost ipaddress (bsc#1210506).
• CVE-2023-30772: Fixed a race condition and resultant use-after-free in da9150_charger_remove (bsc#1210329).
• CVE-2023-1855: Fixed a use after free in xgene_hwmon_remove (bsc#1210202).
• CVE-2023-1989: Fixed a use after free in btsdio_remove (bsc#1210336).
• CVE-2023-1990: Fixed a use after free in ndlc_remove (bsc#1210337).
• CVE-2022-43945: Fixed a buffer overflow in the NFSD implementation (bsc#1205128).
• CVE-2023-1611: Fixed an use-after-free flaw in btrfs_search_slot (bsc#1209687).
• CVE-2020-36691: Fixed a denial of service vulnerability via a nested Netlink policy with a back reference (bsc#1209777).

The following non-security bugs were fixed:

• USB: dwc3: fix runtime pm imbalance on probe errors (git-fixes).
• USB: dwc3: fix runtime pm imbalance on unbind (git-fixes).
• ath10k: Fix error handling in case of CE pipe init failure (git-fixes).
• ath10k: Fix missing frame timestamp for beacon/probe-resp (git-fixes).
• ath10k: Fix the parsing error in service available event (git-fixes).
• ath10k: add missing error return code in ath10k_pci_probe() (git-fixes).
• ath10k: fix control-message timeout (git-fixes).
• ath10k: fix division by zero in send path (git-fixes).
• ath10k: fix memory overwrite of the WoWLAN wakeup packet pattern (git-fixes).
• audit: improve audit queue handling when 'audit=1' on cmdline (bsc#1209969).
• bpf, x86: Fix encoding for lower 8-bit registers in BPF_STX BPF_B (git-fixes).
• cachefiles: Drop superfluous readpages aops NULL check (bsc#1210430).
• cachefiles: Fix page leak in cachefiles_read_backing_file while vmscan is active (bsc#1210430).
• cachefiles: Fix race between read_waiter and read_copier involving op->to_do (bsc#1210430).
• cachefiles: Handle readpage error correctly (bsc#1210430).
• cgroup/cpuset: Wake up cpuset_attach_wq tasks in cpuset_cancel_attach() (bsc#1210827).
• cifs: fix negotiate context parsing (bsc#1210301).
• cifs: fix open leaks in open_cached_dir() (bsc#1209342).
• cred: allow get_cred() and put_cred() to be given NULL (bsc#1209887).
• crypto: x86/ghash - fix unaligned access in ghash_setkey() (git-fixes).
• drivers: net: lmc: fix case value for target abort error (git-fixes).
• fscache, cachefiles: remove redundant variable 'cache' (bsc#1210430).
• ftrace: Mark get_lock_parent_ip() __always_inline (git-fixes).
• intel_pmc_ipc: restore ability to call functions with irq enabled (git-fixes).
• ipmi: fix SSIF not responding under certain cond (git-fixes).
• iwlwifi: Fix -EIO error code that is never returned (git-fixes).
• iwlwifi: fw: make pos static in iwl_sar_get_ewrd_table() loop (git-fixes).
• iwlwifi: pcie: fix locking when 'HW not ready' (git-fixes).
• iwlwifi: pcie: gen2: fix locking when 'HW not ready' (git-fixes).
• iwlwifi: pcie: reschedule in long-running memory reads (git-fixes).
• kabi/severities: ignore KABI for NVMe, except nvme-fc (bsc#1174777).
• kcm: Only allow TCP sockets to be attached to a KCM mux (git-fixes).
• keys: Change keyring_serialise_link_sem to a mutex (bsc#1207088).
• keys: Fix linking a duplicate key to a keyring's assoc_array (bsc#1207088).
• keys: Hoist locking out of __key_link_begin() (bsc#1207088).
• kretprobe: Prevent triggering…

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-2483: Fixed a use after free bug in emac_remove due caused by a race condition (bsc#1211037).
• CVE-2023-2124: Fixed an out of bound access in the XFS subsystem that could have lead to denial-of-service or potentially privilege escalation (bsc#1210498).
• CVE-2023-1670: Fixed a use after free in the Xircom 16-bit PCMCIA Ethernet driver. A local user could use this flaw to crash the system or potentially escalate their privileges on the system (bsc#1209871).
• CVE-2023-2162: Fixed an use-after-free flaw in iscsi_sw_tcp_session_create (bsc#1210647).
• CVE-2023-1998: Fixed a use after free during login when accessing the shost ipaddress (bsc#1210506).
• CVE-2023-30772: Fixed a race condition and resultant use-after-free in da9150_charger_remove (bsc#1210329).
• CVE-2023-1855: Fixed a use after free in xgene_hwmon_remove (bsc#1210202).
• CVE-2023-1989: Fixed a use after free in btsdio_remove (bsc#1210336).
• CVE-2023-1990: Fixed a use after free in ndlc_remove (bsc#1210337).
• CVE-2022-43945: Fixed a buffer overflow in the NFSD implementation (bsc#1205128).
• CVE-2023-1611: Fixed an use-after-free flaw in btrfs_search_slot (bsc#1209687).
• CVE-2020-36691: Fixed a denial of service vulnerability via a nested Netlink policy with a back reference (bsc#1209777).

The following non-security bugs were fixed:

• ARM: 8702/1: head-common.S: Clear lr before jumping to start_kernel() (git-fixes)
• USB: dwc3: fix runtime pm imbalance on probe errors (git-fixes).
• USB: dwc3: fix runtime pm imbalance on unbind (git-fixes).
• arm64: kaslr: Reserve size of ARM64_MEMSTART_ALIGN in linear region (git-fixes)
• ath10k: Fix error handling in case of CE pipe init failure (git-fixes).
• ath10k: Fix missing frame timestamp for beacon/probe-resp (git-fixes).
• ath10k: Fix the parsing error in service available event (git-fixes).
• ath10k: add missing error return code in ath10k_pci_probe() (git-fixes).
• ath10k: fix control-message timeout (git-fixes).
• ath10k: fix division by zero in send path (git-fixes).
• ath10k: fix memory overwrite of the WoWLAN wakeup packet pattern (git-fixes).
• audit: improve audit queue handling when 'audit=1' on cmdline (bsc#1209969).
• bpf, x86: Fix encoding for lower 8-bit registers in BPF_STX BPF_B (git-fixes).
• bs-upload-kernel: Do not skip post-build-checks
• cachefiles: Drop superfluous readpages aops NULL check (bsc#1210430).
• cachefiles: Fix page leak in cachefiles_read_backing_file while vmscan is active (bsc#1210430).
• cachefiles: Fix race between read_waiter and read_copier involving op->to_do (bsc#1210430).
• cachefiles: Handle readpage error correctly (bsc#1210430).
• cgroup/cpuset: Wake up cpuset_attach_wq tasks in cpuset_cancel_attach() (bsc#1210827).
• cifs: fix negotiate context parsing (bsc#1210301).
• cifs: fix open leaks in open_cached_dir() (bsc#1209342).
• cred: allow get_cred() and put_cred() to be given NULL (bsc#1209887).
• crypto: x86/ghash - fix unaligned access in ghash_setkey() (git-fixes).
• drivers: net: lmc: fix case value for target abort error (git-fixes).
• fscache, cachefiles: remove redundant variable 'cache' (bsc#1210430).
• ftrace: Mark get_lock_parent_ip() __always_inline (git-fixes).
• intel_pmc_ipc: restore ability to call functions with irq enabled (git-fixes).
• ipmi: fix SSIF not responding under certain cond (git-fixes).
• iwlwifi: Fix -EIO error code that is never returned (git-fixes).
• iwlwifi: fw: make pos static in iwl_sar_get_ewrd_table() loop (git-fixes).
• iwlwifi: pcie: fix locking when 'HW not ready' (git-fixes).
• iwlwifi: pcie: gen2: fix locking when 'HW not ready' (git-fixes).
• iwlwifi: pcie: reschedule in long-running memory reads (git-fixes).
• kabi/severities: ignore KABI for NVMe, except nvme-fc (bsc#1174777).
• kcm: Only allow TCP sockets to be attached to a KCM mux (git-fixes).
• keys: Change…

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-2483: Fixed a use after free bug in emac_remove due caused by a race condition (bsc#1211037).
• CVE-2023-2124: Fixed an out of bound access in the XFS subsystem that could have lead to denial-of-service or potentially privilege escalation (bsc#1210498).
• CVE-2023-1670: Fixed a use after free in the Xircom 16-bit PCMCIA Ethernet driver. A local user could use this flaw to crash the system or potentially escalate their privileges on the system (bsc#1209871).
• CVE-2017-5753: Fixed spectre V1 vulnerability on netlink (bsc#1209547).
• CVE-2017-5753: Fixed spectre vulnerability in prlimit (bsc#1209256).
• CVE-2020-36691: Fixed a denial of service (unbounded recursion) vulnerability via a nested Netlink policy with a back reference (bsc#1209613 bsc#1209777).
• CVE-2023-0394: Fixed a null pointer dereference flaw in the network subcomponent in the Linux kernel which could lead to system crash (bsc#1207168).
• CVE-2021-3923: Fixed stack information leak vulnerability that could lead to kernel protection bypass in infiniband RDMA (bsc#1209778).
• CVE-2021-4203: Fixed use-after-free read flaw that was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (bsc#1194535).
• CVE-2022-20567: Fixed use after free that could lead to a local privilege escalation in pppol2tp_create of l2tp_ppp.c (bsc#1208850).
• CVE-2022-43945: Fixed a buffer overflow in the NFSD implementation (bsc#1205128).
• CVE-2023-0590: Fixed race condition in qdisc_graft() (bsc#1207795).
• CVE-2023-0597: Fixed lack of randomization of per-cpu entry area in x86/mm (bsc#1207845).
• CVE-2023-1076: Fixed incorrect UID assigned to tun/tap sockets (bsc#1208599).
• CVE-2023-1095: Fixed a NULL pointer dereference in nf_tables due to zeroed list head (bsc#1208777).
• CVE-2023-1118: Fixed a use-after-free bugs caused by ene_tx_irqsim() in media/rc (bsc#1208837).
• CVE-2023-1390: Fixed remote DoS vulnerability in tipc_link_xmit() (bsc#1209289).
• CVE-2023-1513: Fixed an uninitialized portions of the kvm_debugregs structure that could be copied to userspace, causing an information leak (bsc#1209532).
• CVE-2023-1611: Fixed an use-after-free flaw in btrfs_search_slot (bsc#1209687).
• CVE-2023-1855: Fixed an use-after-free flaw in xgene_hwmon_remove (bsc#1210202).
• CVE-2023-1989: Fixed an use-after-free flaw in btsdio_remove (bsc#1210336).
• CVE-2023-1990: Fixed an use-after-free flaw in ndlc_remove (bsc#1210337).
• CVE-2023-1998: Fixed an use-after-free flaw during login when accessing the shost ipaddress (bsc#1210506).
• CVE-2023-2162: Fixed an use-after-free flaw in iscsi_sw_tcp_session_create (bsc#1210647).
• CVE-2023-23454: Fixed a type-confusion in the CBQ network scheduler (bsc#1207036).
• CVE-2023-23455: Fixed a denial of service inside atm_tc_enqueue in net/sched/sch_atm.c because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results) (bsc#1207125).
• CVE-2023-28328: Fixed a denial of service issue in az6027 driver in drivers/media/usb/dev-usb/az6027.c (bsc#1209291).
• CVE-2023-28464: Fixed user-after-free that could lead to privilege escalation in hci_conn_cleanup in net/uetooth/hci_conn.c (bsc#1209052).
• CVE-2023-28772: Fixed buffer overflow in seq_buf_putmem_hex in lib/seq_buf.c (bsc#1209549).
• CVE-2023-30772: Fixed race condition and resultant use-after-free in da9150_charger_remove (bsc#1210329).

The following non-security bugs were fixed:

• Do not sign the vanilla kernel (bsc#1209008).
• Fix kABI breakage (bsc#1208333)
• PCI: hv: Add a per-bus mutex state_lock (bsc#1207185).
• PCI: hv: Fix a race condition bug in hv_pci_query_relations() (bsc#1207185).
• PCI: hv: Fix a race condition in hv_irq_unmask() that can cause panic (bsc#1207185).
• PCI: hv: Remove the useless hv_pcichild_state from struct…

It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An attacker could use this to cause a denial of service (infinite recursion). (CVE-2020-36691)

Billy Jheng Bing Jhong discovered that the CIFS network file system implementation in the Linux kernel did not properly validate arguments to ioctl() in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-0168)

It was discovered that the ext4 file system implementation in the Linux kernel contained a use-after-free vulnerability. An attacker could use this to construct a malicious ext4 file system image that, when mounted, could cause a denial of service (system crash). (CVE-2022-1184)

It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. (CVE-2022-27672)

William Zhao discovered that the Traffic Control (TC) subsystem in the Linux kernel did not properly handle network packet retransmission in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2022-4269)

It was discovered that a race condition existed in the qdisc implementation in the Linux kernel, 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-2023-0590)

It was discovered that a race condition existed in the btrfs file system implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-1611)

It was discovered that the APM X-Gene SoC hardware monitoring driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information (kernel memory). (CVE-2023-1855)

It was discovered that the ST NCI NFC driver did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2023-1990)

It was discovered that the XFS file system implementation in the Linux kernel did not properly perform metadata validation when mounting certain images. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2023-2124)

It was discovered that the SLIMpro I2C device driver in the Linux kernel did not properly validate user-supplied data in some situations, leading to an out-of-bounds write vulnerability. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-2194)

It was discovered that a race condition existed in the TLS subsystem in the Linux kernel, leading to a use-after-free or a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-28466)

It was discovered that the DA9150 charger driver in the Linux kernel did not properly handle device removal, leading to a user-after free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-30772)

It was discovered that the btrfs file system implementation in the Linux kernel did not properly handle error conditions in some situations, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-3111)

It was discovered that the Ricoh R5C592 MemoryStick card reader driver in the Linux kernel contained a race condition during module…

It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An attacker could use this to cause a denial of service (infinite recursion). (CVE-2020-36691)

Billy Jheng Bing Jhong discovered that the CIFS network file system implementation in the Linux kernel did not properly validate arguments to ioctl() in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-0168)

It was discovered that the ext4 file system implementation in the Linux kernel contained a use-after-free vulnerability. An attacker could use this to construct a malicious ext4 file system image that, when mounted, could cause a denial of service (system crash). (CVE-2022-1184)

It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. (CVE-2022-27672)

William Zhao discovered that the Traffic Control (TC) subsystem in the Linux kernel did not properly handle network packet retransmission in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2022-4269)

It was discovered that a race condition existed in the qdisc implementation in the Linux kernel, 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-2023-0590)

It was discovered that a race condition existed in the btrfs file system implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-1611)

It was discovered that the APM X-Gene SoC hardware monitoring driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information (kernel memory). (CVE-2023-1855)

It was discovered that the ST NCI NFC driver did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2023-1990)

It was discovered that the XFS file system implementation in the Linux kernel did not properly perform metadata validation when mounting certain images. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2023-2124)

It was discovered that the SLIMpro I2C device driver in the Linux kernel did not properly validate user-supplied data in some situations, leading to an out-of-bounds write vulnerability. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-2194)

It was discovered that a race condition existed in the TLS subsystem in the Linux kernel, leading to a use-after-free or a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-28466)

It was discovered that the DA9150 charger driver in the Linux kernel did not properly handle device removal, leading to a user-after free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-30772)

It was discovered that the btrfs file system implementation in the Linux kernel did not properly handle error conditions in some situations, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-3111)

It was discovered that the Ricoh R5C592 MemoryStick card reader driver in the Linux kernel contained a race condition during module…

It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An attacker could use this to cause a denial of service (infinite recursion). (CVE-2020-36691)

Billy Jheng Bing Jhong discovered that the CIFS network file system implementation in the Linux kernel did not properly validate arguments to ioctl() in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-0168)

It was discovered that the ext4 file system implementation in the Linux kernel contained a use-after-free vulnerability. An attacker could use this to construct a malicious ext4 file system image that, when mounted, could cause a denial of service (system crash). (CVE-2022-1184)

It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. (CVE-2022-27672)

William Zhao discovered that the Traffic Control (TC) subsystem in the Linux kernel did not properly handle network packet retransmission in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2022-4269)

It was discovered that a race condition existed in the qdisc implementation in the Linux kernel, 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-2023-0590)

It was discovered that a race condition existed in the btrfs file system implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-1611)

It was discovered that the APM X-Gene SoC hardware monitoring driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information (kernel memory). (CVE-2023-1855)

It was discovered that the ST NCI NFC driver did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2023-1990)

It was discovered that the XFS file system implementation in the Linux kernel did not properly perform metadata validation when mounting certain images. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2023-2124)

It was discovered that the SLIMpro I2C device driver in the Linux kernel did not properly validate user-supplied data in some situations, leading to an out-of-bounds write vulnerability. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-2194)

It was discovered that a race condition existed in the TLS subsystem in the Linux kernel, leading to a use-after-free or a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-28466)

It was discovered that the DA9150 charger driver in the Linux kernel did not properly handle device removal, leading to a user-after free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-30772)

It was discovered that the btrfs file system implementation in the Linux kernel did not properly handle error conditions in some situations, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-3111)

It was discovered that the Ricoh R5C592 MemoryStick card reader driver in the Linux kernel contained a race condition during module…

It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An attacker could use this to cause a denial of service (infinite recursion). (CVE-2020-36691)

Billy Jheng Bing Jhong discovered that the CIFS network file system implementation in the Linux kernel did not properly validate arguments to ioctl() in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-0168)

It was discovered that the ext4 file system implementation in the Linux kernel contained a use-after-free vulnerability. An attacker could use this to construct a malicious ext4 file system image that, when mounted, could cause a denial of service (system crash). (CVE-2022-1184)

It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. (CVE-2022-27672)

William Zhao discovered that the Traffic Control (TC) subsystem in the Linux kernel did not properly handle network packet retransmission in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2022-4269)

It was discovered that a race condition existed in the qdisc implementation in the Linux kernel, 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-2023-0590)

It was discovered that a race condition existed in the btrfs file system implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-1611)

It was discovered that the APM X-Gene SoC hardware monitoring driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information (kernel memory). (CVE-2023-1855)

It was discovered that the ST NCI NFC driver did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2023-1990)

It was discovered that the XFS file system implementation in the Linux kernel did not properly perform metadata validation when mounting certain images. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2023-2124)

It was discovered that the SLIMpro I2C device driver in the Linux kernel did not properly validate user-supplied data in some situations, leading to an out-of-bounds write vulnerability. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-2194)

It was discovered that a race condition existed in the TLS subsystem in the Linux kernel, leading to a use-after-free or a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-28466)

It was discovered that the DA9150 charger driver in the Linux kernel did not properly handle device removal, leading to a user-after free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-30772)

It was discovered that the btrfs file system implementation in the Linux kernel did not properly handle error conditions in some situations, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-3111)

It was discovered that the Ricoh R5C592 MemoryStick card reader driver in the Linux kernel contained a race condition during module…

It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An attacker could use this to cause a denial of service (infinite recursion). (CVE-2020-36691)

Billy Jheng Bing Jhong discovered that the CIFS network file system implementation in the Linux kernel did not properly validate arguments to ioctl() in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-0168)

It was discovered that the ext4 file system implementation in the Linux kernel contained a use-after-free vulnerability. An attacker could use this to construct a malicious ext4 file system image that, when mounted, could cause a denial of service (system crash). (CVE-2022-1184)

It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. (CVE-2022-27672)

Daniel Moghimi discovered that some Intel(R) Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. (CVE-2022-40982)

William Zhao discovered that the Traffic Control (TC) subsystem in the Linux kernel did not properly handle network packet retransmission in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2022-4269)

It was discovered that a race condition existed in the qdisc implementation in the Linux kernel, 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-2023-0590)

It was discovered that a race condition existed in the btrfs file system implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-1611)

It was discovered that the APM X-Gene SoC hardware monitoring driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information (kernel memory). (CVE-2023-1855)

It was discovered that the ST NCI NFC driver did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2023-1990)

Tavis Ormandy discovered that some AMD processors did not properly handle speculative execution of certain vector register instructions. A local attacker could use this to expose sensitive information. (CVE-2023-20593)

It was discovered that the XFS file system implementation in the Linux kernel did not properly perform metadata validation when mounting certain images. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2023-2124)

It was discovered that the SLIMpro I2C device driver in the Linux kernel did not properly validate user-supplied data in some situations, leading to an out-of-bounds write vulnerability. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-2194)

It was discovered that a race condition existed in the TLS subsystem in the Linux kernel, leading to a use-after-free or a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-28466)

It was discovered that the DA9150 charger driver in the Linux kernel did not properly handle device removal, leading to a user-after free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or…

It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An attacker could use this to cause a denial of service (infinite recursion). (CVE-2020-36691)

Billy Jheng Bing Jhong discovered that the CIFS network file system implementation in the Linux kernel did not properly validate arguments to ioctl() in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-0168)

It was discovered that the ext4 file system implementation in the Linux kernel contained a use-after-free vulnerability. An attacker could use this to construct a malicious ext4 file system image that, when mounted, could cause a denial of service (system crash). (CVE-2022-1184)

It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. (CVE-2022-27672)

William Zhao discovered that the Traffic Control (TC) subsystem in the Linux kernel did not properly handle network packet retransmission in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2022-4269)

It was discovered that a race condition existed in the qdisc implementation in the Linux kernel, 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-2023-0590)

It was discovered that a race condition existed in the btrfs file system implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-1611)

It was discovered that the APM X-Gene SoC hardware monitoring driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information (kernel memory). (CVE-2023-1855)

It was discovered that the ST NCI NFC driver did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2023-1990)

It was discovered that the XFS file system implementation in the Linux kernel did not properly perform metadata validation when mounting certain images. An attacker could use this to specially craft a file system image that, when mounted, could cause a denial of service (system crash). (CVE-2023-2124)

It was discovered that the SLIMpro I2C device driver in the Linux kernel did not properly validate user-supplied data in some situations, leading to an out-of-bounds write vulnerability. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-2194)

It was discovered that a race condition existed in the TLS subsystem in the Linux kernel, leading to a use-after-free or a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-28466)

It was discovered that the DA9150 charger driver in the Linux kernel did not properly handle device removal, leading to a user-after free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-30772)

It was discovered that the btrfs file system implementation in the Linux kernel did not properly handle error conditions in some situations, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-3111)

It was discovered that the Ricoh R5C592 MemoryStick card reader driver in the Linux kernel contained a race condition during module…