CVE-2023-52559

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid memory allocation in iommu_suspend() The iommu_suspend() syscore suspend callback is invoked with IRQ disabled. Allocating memory with the GFP_KERNEL flag may re-enable IRQs during the suspend callback, which can cause intermittent suspend/hibernation problems with the following kernel traces: Calling iommu_suspend+0x0/0x1d0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 15 at kernel/time/timekeeping.c:868 ktime_get+0x9b/0xb0 ... CPU: 0 PID: 15 Comm: rcu_preempt Tainted: G U E 6.3-intel #r1 RIP: 0010:ktime_get+0x9b/0xb0 ... Call Trace: <IRQ> tick_sched_timer+0x22/0x90 ? __pfx_tick_sched_timer+0x10/0x10 __hrtimer_run_queues+0x111/0x2b0 hrtimer_interrupt+0xfa/0x230 __sysvec_apic_timer_interrupt+0x63/0x140 sysvec_apic_timer_interrupt+0x7b/0xa0 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1f/0x30 ... ------------[ cut here ]------------ Interrupts enabled after iommu_suspend+0x0/0x1d0 WARNING: CPU: 0 PID: 27420 at drivers/base/syscore.c:68 syscore_suspend+0x147/0x270 CPU: 0 PID: 27420 Comm: rtcwake Tainted: G U W E 6.3-intel #r1 RIP: 0010:syscore_suspend+0x147/0x270 ... Call Trace: <TASK> hibernation_snapshot+0x25b/0x670 hibernate+0xcd/0x390 state_store+0xcf/0xe0 kobj_attr_store+0x13/0x30 sysfs_kf_write+0x3f/0x50 kernfs_fop_write_iter+0x128/0x200 vfs_write+0x1fd/0x3c0 ksys_write+0x6f/0xf0 __x64_sys_write+0x1d/0x30 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc Given that only 4 words memory is needed, avoid the memory allocation in iommu_suspend().

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

iommu/vt-d: Avoid memory allocation in iommu_suspend()

The iommu_suspend() syscore suspend callback is invoked with IRQ disabled. Allocating memory with the GFP_KERNEL flag may re-enable IRQs during the suspend callback, which can cause intermittent suspend/hibernation problems with the following kernel traces:

Calling iommu_suspend+0x0/0x1d0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 15 at kernel/time/timekeeping.c:868 ktime_get+0x9b/0xb0 ... CPU: 0 PID: 15 Comm: rcu_preempt Tainted: G U E 6.3-intel #r1 RIP: 0010:ktime_get+0x9b/0xb0 ... Call Trace: <IRQ> tick_sched_timer+0x22/0x90 ? __pfx_tick_sched_timer+0x10/0x10 __hrtimer_run_queues+0x111/0x2b0 hrtimer_interrupt+0xfa/0x230 __sysvec_apic_timer_interrupt+0x63/0x140 sysvec_apic_timer_interrupt+0x7b/0xa0 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1f/0x30 ... ------------[ cut here ]------------ Interrupts enabled after iommu_suspend+0x0/0x1d0 WARNING: CPU: 0 PID: 27420 at drivers/base/syscore.c:68 syscore_suspend+0x147/0x270 CPU: 0 PID: 27420 Comm: rtcwake Tainted: G U W E 6.3-intel #r1 RIP: 0010:syscore_suspend+0x147/0x270 ... Call Trace: <TASK> hibernation_snapshot+0x25b/0x670 hibernate+0xcd/0x390 state_store+0xcf/0xe0 kobj_attr_store+0x13/0x30 sysfs_kf_write+0x3f/0x50 kernfs_fop_write_iter+0x128/0x200 vfs_write+0x1fd/0x3c0 ksys_write+0x6f/0xf0 __x64_sys_write+0x1d/0x30 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc

Given that only 4 words memory is needed, avoid the memory allocation in iommu_suspend().

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

The following security bugs were fixed:

• CVE-2023-6270: Fixed a use-after-free bug in aoecmd_cfg_pkts (bsc#1218562).
• CVE-2023-52559: Fixed a bug by avoiding memory allocation in iommu_suspend (bsc#1220933).
• CVE-2023-52462: Fixed a security check for attempt to corrupt spilled pointer (bsc#1220325).
• CVE-2023-52467: Fixed a null pointer dereference in of_syscon_register (bsc#1220433).
• CVE-2023-52463: Fixed null pointer dereference in efivarfs (bsc#1220328).
• CVE-2023-52530: Fixed a potential key use-after-free in wifi mac80211 (bsc#1220930).
• CVE-2024-26607: Fixed a probing race issue in sii902x: (bsc#1220736).
• CVE-2024-26591: Fixed re-attachment branch in bpf_tracing_prog_attach (bsc#1220254).
• CVE-2024-26589: Fixed out of bounds read due to variable offset alu on PTR_TO_FLOW_KEYS (bsc#1220255).
• CVE-2024-26585: Fixed race between tx work scheduling and socket close (bsc#1220187).
• CVE-2023-52340: Fixed ICMPv6 “Packet Too Big” packets force a DoS of the Linux kernel by forcing 100% CPU (bsc#1219295).
• CVE-2024-0607: Fixed 64-bit load issue in nft_byteorder_eval() (bsc#1218915).
• CVE-2023-6817: Fixed use-after-free in nft_pipapo_walk (bsc#1218195).
• CVE-2024-26622: Fixed UAF write bug in tomoyo_write_control() (bsc#1220825).
• CVE-2024-23850: Fixed double free of anonymous device after snapshot creation failure (bsc#1219126).
• CVE-2023-52452: Fixed Fix accesses to uninit stack slots (bsc#1220257).
• CVE-2023-52457: Fixed skipped resource freeing if pm_runtime_resume_and_get() failed (bsc#1220350).
• CVE-2023-52456: Fixed tx statemachine deadlock (bsc#1220364).
• CVE-2023-52451: Fixed access beyond end of drmem array (bsc#1220250).
• CVE-2023-52447: Fixed map_fd_put_ptr() signature kABI workaround (bsc#1220251).
• CVE-2023-52449: Fixed gluebi NULL pointer dereference caused by ftl notifier (bsc#1220238).
• CVE-2021-46923: Fixed reference leakage in fs/mount_setattr (bsc#1220457).
• CVE-2024-26598: Fixed potential UAF in LPI translation cache (bsc#1220326).
• CVE-2024-26603: Fixed infinite loop via #PF handling (bsc#1220335).
• CVE-2023-52445: Fixed use after free on context disconnection (bsc#1220241).
• CVE-2023-52439: Fixed use-after-free in uio_open (bsc#1220140).
• CVE-2023-52443: Fixed crash when parsed profile name is empty (bsc#1220240).
• CVE-2024-26593: Fixed block process call transactions (bsc#1220009).
• CVE-2024-26586: Fixed stack corruption (bsc#1220243).
• CVE-2024-26595: Fixed NULL pointer dereference in error path (bsc#1220344).
• CVE-2023-52464: Fixed possible out-of-bounds string access (bsc#1220330)
• CVE-2023-52448: Fixed kernel NULL pointer dereference in gfs2_rgrp_dump (bsc#1220253).
• CVE-2024-1151: Fixed unlimited number of recursions from action sets (bsc#1219835).
• CVE-2023-5197: Fixed se-after-free due to addition and removal of rules from chain bindings within the same transaction (bsc#1218216).
• CVE-2024-23849: Fixed array-index-out-of-bounds in rds_cmsg_recv (bsc#1219127).
• CVE-2023-52429: Fixed potential DoS in dm_table_create in drivers/md/dm-table.c (bsc#1219827).
• CVE-2024-23851: Fixed crash in copy_params in drivers/md/dm-ioctl.c (bsc#1219146).

The following non-security bugs were fixed:

• ACPI: APEI: set memory failure flags as MF_ACTION_REQUIRED on synchronous events (git-fixes).
• ACPI: button: Add lid disable DMI quirk for Nextbook Ares 8A (git-fixes).
• ACPI: extlog: fix NULL pointer dereference check (git-fixes).
• ACPI: resource: Add ASUS model S5402ZA to quirks (git-fixes).
• ACPI: resource: Skip IRQ override on ASUS ExpertBook B1502CBA (git-fixes).
• ACPI: resource: Skip IRQ override on Asus Expertbook B2402CBA (git-fixes).
• ACPI: video: Add backlight=native DMI quirk for Apple iMac11,3 (git-fixes).
• ACPI: video: Add backlight=native DMI quirk for Apple iMac12,1 and iMac12,2 (git-fixes).
• ACPI: video: Add backlight=native DMI quirk for…

The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2023-6270: Fixed a use-after-free issue in aoecmd_cfg_pkts (bsc#1218562).
• CVE-2023-52463: Fixed null pointer dereference in efivarfs (bsc#1220328).
• CVE-2023-52559: Fixed a bug by avoiding memory allocation in iommu_suspend (bsc#1220933).
• CVE-2023-28746: Fixed Register File Data Sampling (bsc#1213456).
• CVE-2023-52530: Fixed a potential key use-after-free in wifi mac80211 (bsc#1220930).
• CVE-2024-26607: Fixed a probing race issue in sii902x: (bsc#1220736).
• CVE-2023-52467: Fixed a null pointer dereference in of_syscon_register (bsc#1220433).
• CVE-2024-26591: Fixed re-attachment branch in bpf_tracing_prog_attach (bsc#1220254).
• CVE-2024-26589: Fixed out of bounds read due to variable offset alu on PTR_TO_FLOW_KEYS (bsc#1220255).
• CVE-2023-52484: Fixed a soft lockup triggered by arm_smmu_mm_invalidate_range (bsc#1220797).
• CVE-2024-26585: Fixed race between tx work scheduling and socket close (bsc#1220187).
• CVE-2023-52340: Fixed ICMPv6 “Packet Too Big” packets force a DoS of the Linux kernel by forcing 100% CPU (bsc#1219295).
• CVE-2024-0607: Fixed 64-bit load issue in nft_byteorder_eval() (bsc#1218915).
• CVE-2023-6817: Fixed use-after-free in nft_pipapo_walk (bsc#1218195).
• CVE-2024-26622: Fixed UAF write bug in tomoyo_write_control() (bsc#1220825).
• CVE-2024-23850: Fixed double free of anonymous device after snapshot creation failure (bsc#1219126).
• CVE-2023-52452: Fixed Fix accesses to uninit stack slots (bsc#1220257).
• CVE-2023-52457: Fixed skipped resource freeing if pm_runtime_resume_and_get() failed (bsc#1220350).
• CVE-2023-52456: Fixed tx statemachine deadlock (bsc#1220364).
• CVE-2023-52451: Fixed access beyond end of drmem array (bsc#1220250).
• CVE-2023-52449: Fixed gluebi NULL pointer dereference caused by ftl notifier (bsc#1220238).
• CVE-2021-46923: Fixed reference leakage in fs/mount_setattr (bsc#1220457).
• CVE-2023-52447: Fixed map_fd_put_ptr() signature kABI workaround (bsc#1220251).
• CVE-2024-26598: Fixed potential UAF in LPI translation cache (bsc#1220326).
• CVE-2024-26603: Fixed infinite loop via #PF handling (bsc#1220335).
• CVE-2023-52445: Fixed use after free on context disconnection (bsc#1220241).
• CVE-2023-52439: Fixed use-after-free in uio_open (bsc#1220140).
• CVE-2023-52443: Fixed crash when parsed profile name is empty (bsc#1220240).
• CVE-2024-26602: Fixed overall slowdowns with sys_membarrier (bsc1220398).
• CVE-2024-26593: Fixed block process call transactions (bsc#1220009).
• CVE-2024-26586: Fixed stack corruption (bsc#1220243).
• CVE-2024-26595: Fixed NULL pointer dereference in error path (bsc#1220344).
• CVE-2023-52464: Fixed possible out-of-bounds string access (bsc#1220330)
• CVE-2023-52448: Fixed kernel NULL pointer dereference in gfs2_rgrp_dump (bsc#1220253).
• CVE-2024-1151: Fixed unlimited number of recursions from action sets (bsc#1219835).
• CVE-2023-5197: Fixed se-after-free due to addition and removal of rules from chain bindings within the same transaction (bsc#1218216).
• CVE-2024-23849: Fixed array-index-out-of-bounds in rds_cmsg_recv (bsc#1219127).
• CVE-2023-52429: Fixed potential DoS in dm_table_create in drivers/md/dm-table.c (bsc#1219827).
• CVE-2024-23851: Fixed crash in copy_params in drivers/md/dm-ioctl.c (bsc#1219146).

The following non-security bugs were fixed:

• bpf: Fix verification of indirect var-off stack access (git-fixes).
• bpf: Guard stack limits against 32bit overflow (git-fixes).
• KVM: VMX: Move VERW closer to VMentry for MDS mitigation (git-fixes).
• KVM: VMX: Use BT+JNC, i.e. EFLAGS.CF to select VMRESUME vs. VMLAUNCH (git-fixes).
• NFS: avoid infinite loop in pnfs_update_layout (bsc#1219633).
• nvme: move nvme_stop_keep_alive() back to original position (bsc#1211515).
• nvme: remove nvme_alloc_request and nvme_alloc_request_qid (bsc#1214064).
• nvme: start keep-alive after…

The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2023-6270: Fixed a use-after-free issue in aoecmd_cfg_pkts (bsc#1218562).
• CVE-2023-52463: Fixed null pointer dereference in efivarfs (bsc#1220328).
• CVE-2023-52559: Fixed a bug by avoiding memory allocation in iommu_suspend (bsc#1220933).
• CVE-2023-28746: Fixed Register File Data Sampling (bsc#1213456).
• CVE-2023-52530: Fixed a potential key use-after-free in wifi mac80211 (bsc#1220930).
• CVE-2024-26607: Fixed a probing race issue in sii902x: (bsc#1220736).
• CVE-2023-52467: Fixed a null pointer dereference in of_syscon_register (bsc#1220433).
• CVE-2024-26591: Fixed re-attachment branch in bpf_tracing_prog_attach (bsc#1220254).
• CVE-2024-26589: Fixed out of bounds read due to variable offset alu on PTR_TO_FLOW_KEYS (bsc#1220255).
• CVE-2023-52484: Fixed a soft lockup triggered by arm_smmu_mm_invalidate_range (bsc#1220797).
• CVE-2024-26585: Fixed race between tx work scheduling and socket close (bsc#1220187).
• CVE-2023-52340: Fixed ICMPv6 “Packet Too Big” packets force a DoS of the Linux kernel by forcing 100% CPU (bsc#1219295).
• CVE-2024-0607: Fixed 64-bit load issue in nft_byteorder_eval() (bsc#1218915).
• CVE-2023-6817: Fixed use-after-free in nft_pipapo_walk (bsc#1218195).
• CVE-2024-26622: Fixed UAF write bug in tomoyo_write_control() (bsc#1220825).
• CVE-2024-23850: Fixed double free of anonymous device after snapshot creation failure (bsc#1219126).
• CVE-2023-52452: Fixed Fix accesses to uninit stack slots (bsc#1220257).
• CVE-2023-52457: Fixed skipped resource freeing if pm_runtime_resume_and_get() failed (bsc#1220350).
• CVE-2023-52456: Fixed tx statemachine deadlock (bsc#1220364).
• CVE-2023-52451: Fixed access beyond end of drmem array (bsc#1220250).
• CVE-2023-52449: Fixed gluebi NULL pointer dereference caused by ftl notifier (bsc#1220238).
• CVE-2021-46923: Fixed reference leakage in fs/mount_setattr (bsc#1220457).
• CVE-2023-52447: Fixed map_fd_put_ptr() signature kABI workaround (bsc#1220251).
• CVE-2024-26598: Fixed potential UAF in LPI translation cache (bsc#1220326).
• CVE-2024-26603: Fixed infinite loop via #PF handling (bsc#1220335).
• CVE-2023-52445: Fixed use after free on context disconnection (bsc#1220241).
• CVE-2023-52439: Fixed use-after-free in uio_open (bsc#1220140).
• CVE-2023-52443: Fixed crash when parsed profile name is empty (bsc#1220240).
• CVE-2024-26602: Fixed overall slowdowns with sys_membarrier (bsc1220398).
• CVE-2024-26593: Fixed block process call transactions (bsc#1220009).
• CVE-2024-26586: Fixed stack corruption (bsc#1220243).
• CVE-2024-26595: Fixed NULL pointer dereference in error path (bsc#1220344).
• CVE-2023-52464: Fixed possible out-of-bounds string access (bsc#1220330)
• CVE-2023-52448: Fixed kernel NULL pointer dereference in gfs2_rgrp_dump (bsc#1220253).
• CVE-2024-1151: Fixed unlimited number of recursions from action sets (bsc#1219835).
• CVE-2023-5197: Fixed se-after-free due to addition and removal of rules from chain bindings within the same transaction (bsc#1218216).
• CVE-2024-23849: Fixed array-index-out-of-bounds in rds_cmsg_recv (bsc#1219127).
• CVE-2023-52429: Fixed potential DoS in dm_table_create in drivers/md/dm-table.c (bsc#1219827).
• CVE-2024-23851: Fixed crash in copy_params in drivers/md/dm-ioctl.c (bsc#1219146).

The following non-security bugs were fixed:

• bpf: Fix verification of indirect var-off stack access (git-fixes).
• bpf: Guard stack limits against 32bit overflow (git-fixes).
• KVM: VMX: Move VERW closer to VMentry for MDS mitigation (git-fixes).
• KVM: VMX: Use BT+JNC, i.e. EFLAGS.CF to select VMRESUME vs. VMLAUNCH (git-fixes).
• NFS: avoid infinite loop in pnfs_update_layout (bsc#1219633).
• nvme: move nvme_stop_keep_alive() back to original position (bsc#1211515).
• nvme: remove nvme_alloc_request and nvme_alloc_request_qid (bsc#1214064).
• nvme: start keep-alive after…

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2019-25162: Fixed a potential use after free (bsc#1220409).
• CVE-2021-46923: Fixed reference leakage in fs/mount_setattr (bsc#1220457).
• CVE-2021-46924: Fixed fix memory leak in device probe and remove (bsc#1220459)
• CVE-2021-46932: Fixed missing work initialization before device registration (bsc#1220444)
• CVE-2021-46934: Fixed a bug by validating user data in compat ioctl (bsc#1220469).
• CVE-2021-47083: Fixed a global-out-of-bounds issue in mediatek: (bsc#1220917).
• CVE-2022-48627: Fixed a memory overlapping when deleting chars in the buffer (bsc#1220845).
• CVE-2023-28746: Fixed Register File Data Sampling (bsc#1213456).
• CVE-2023-5197: Fixed se-after-free due to addition and removal of rules from chain bindings within the same transaction (bsc#1218216).
• CVE-2023-52340: Fixed ICMPv6 “Packet Too Big” packets force a DoS of the Linux kernel by forcing 100% CPU (bsc#1219295).
• CVE-2023-52429: Fixed potential DoS in dm_table_create in drivers/md/dm-table.c (bsc#1219827).
• CVE-2023-52439: Fixed use-after-free in uio_open (bsc#1220140).
• CVE-2023-52443: Fixed crash when parsed profile name is empty (bsc#1220240).
• CVE-2023-52445: Fixed use after free on context disconnection (bsc#1220241).
• CVE-2023-52447: Fixed map_fd_put_ptr() signature kABI workaround (bsc#1220251).
• CVE-2023-52448: Fixed kernel NULL pointer dereference in gfs2_rgrp_dump (bsc#1220253).
• CVE-2023-52449: Fixed gluebi NULL pointer dereference caused by ftl notifier (bsc#1220238).
• CVE-2023-52451: Fixed access beyond end of drmem array (bsc#1220250).
• CVE-2023-52452: Fixed Fix accesses to uninit stack slots (bsc#1220257).
• CVE-2023-52456: Fixed tx statemachine deadlock (bsc#1220364).
• CVE-2023-52457: Fixed skipped resource freeing if pm_runtime_resume_and_get() failed (bsc#1220350).
• CVE-2023-52463: Fixed null pointer dereference in efivarfs (bsc#1220328).
• CVE-2023-52464: Fixed possible out-of-bounds string access (bsc#1220330)
• CVE-2023-52467: Fixed a null pointer dereference in of_syscon_register (bsc#1220433).
• CVE-2023-52475: Fixed use-after-free in powermate_config_complete (bsc#1220649)
• CVE-2023-52478: Fixed kernel crash on receiver USB disconnect (bsc#1220796)
• CVE-2023-52482: Fixed a bug by adding SRSO mitigation for Hygon processors (bsc#1220735).
• CVE-2023-52484: Fixed a soft lockup triggered by arm_smmu_mm_invalidate_range (bsc#1220797).
• CVE-2023-52530: Fixed a potential key use-after-free in wifi mac80211 (bsc#1220930).
• CVE-2023-52531: Fixed a memory corruption issue in iwlwifi (bsc#1220931).
• CVE-2023-52559: Fixed a bug by avoiding memory allocation in iommu_suspend (bsc#1220933).
• CVE-2023-6270: Fixed a use-after-free issue in aoecmd_cfg_pkts (bsc#1218562).
• CVE-2023-6817: Fixed use-after-free in nft_pipapo_walk (bsc#1218195).
• CVE-2024-0607: Fixed 64-bit load issue in nft_byteorder_eval() (bsc#1218915).
• CVE-2024-1151: Fixed unlimited number of recursions from action sets (bsc#1219835).
• CVE-2024-23849: Fixed array-index-out-of-bounds in rds_cmsg_recv (bsc#1219127).
• CVE-2024-23850: Fixed double free of anonymous device after snapshot creation failure (bsc#1219126).
• CVE-2024-23851: Fixed crash in copy_params in drivers/md/dm-ioctl.c (bsc#1219146).
• CVE-2024-26585: Fixed race between tx work scheduling and socket close (bsc#1220187).
• CVE-2024-26586: Fixed stack corruption (bsc#1220243).
• CVE-2024-26589: Fixed out of bounds read due to variable offset alu on PTR_TO_FLOW_KEYS (bsc#1220255).
• CVE-2024-26591: Fixed re-attachment branch in bpf_tracing_prog_attach (bsc#1220254).
• CVE-2024-26593: Fixed block process call transactions (bsc#1220009).
• CVE-2024-26595: Fixed NULL pointer dereference in error path (bsc#1220344).
• CVE-2024-26598: Fixed potential UAF in LPI translation cache (bsc#1220326).
• CVE-2024-26602: Fixed overall slowdowns with…

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

NOTE: This update has been retracted due to a bug in the BHI CPU sidechannel mitigation, which led to incorrect selection of other CPU mitigations.

The following security bugs were fixed:

• CVE-2021-46925: Fixed kernel panic caused by race of smc_sock (bsc#1220466).
• CVE-2021-46926: Fixed bug when detecting controllers in ALSA/hda/intel-sdw-acpi (bsc#1220478).
• CVE-2021-46927: Fixed assertion bug in nitro_enclaves: Use get_user_pages_unlocked() (bsc#1220443).
• CVE-2021-46929: Fixed use-after-free issue in sctp_sock_dump() (bsc#1220482).
• CVE-2021-46930: Fixed usb/mtu3 list_head check warning (bsc#1220484).
• CVE-2021-46931: Fixed wrong type casting in mlx5e_tx_reporter_dump_sq() (bsc#1220486).
• CVE-2021-46933: Fixed possible underflow in ffs_data_clear() (bsc#1220487).
• CVE-2021-46934: Fixed a bug by validating user data in compat ioctl (bsc#1220469).
• CVE-2021-46936: Fixed use-after-free in tw_timer_handler() (bsc#1220439).
• CVE-2021-47082: Fixed ouble free in tun_free_netdev() (bsc#1220969).
• CVE-2021-47083: Fixed a global-out-of-bounds issue in mediatek: (bsc#1220917).
• CVE-2021-47087: Fixed incorrect page free bug in tee/optee (bsc#1220954).
• CVE-2021-47091: Fixed locking in ieee80211_start_ap()) error path (bsc#1220959).
• CVE-2021-47093: Fixed memleak on registration failure in intel_pmc_core (bsc#1220978).
• CVE-2021-47094: Fixed possible memory leak in KVM x86/mmu (bsc#1221551).
• CVE-2021-47095: Fixed missing initialization in ipmi/ssif (bsc#1220979).
• CVE-2021-47096: Fixed uninitalized user_pversion in ALSA rawmidi (bsc#1220981).
• CVE-2021-47097: Fixed stack out of bound access in elantech_change_report_id() (bsc#1220982).
• CVE-2021-47098: Fixed integer overflow/underflow in hysteresis calculations hwmon: (lm90) (bsc#1220983).
• CVE-2021-47099: Fixed BUG_ON assertion in veth when skb entering GRO are cloned (bsc#1220955).
• CVE-2021-47100: Fixed UAF when uninstall in ipmi (bsc#1220985).
• CVE-2021-47101: Fixed uninit-value in asix_mdio_read() (bsc#1220987).
• CVE-2021-47102: Fixed incorrect structure access In line: upper = info->upper_dev in net/marvell/prestera (bsc#1221009).
• CVE-2021-47104: Fixed memory leak in qib_user_sdma_queue_pkts() (bsc#1220960).
• CVE-2021-47105: Fixed potential memory leak in ice/xsk (bsc#1220961).
• CVE-2021-47107: Fixed READDIR buffer overflow in NFSD (bsc#1220965).
• CVE-2021-47108: Fixed possible NULL pointer dereference for mtk_hdmi_conf in drm/mediatek (bsc#1220986).
• CVE-2022-4744: Fixed double-free that could lead to DoS or privilege escalation in TUN/TAP device driver functionality (bsc#1209635).
• CVE-2022-48626: Fixed a potential use-after-free on remove path moxart (bsc#1220366).
• CVE-2022-48627: Fixed a memory overlapping when deleting chars in the buffer (bsc#1220845).
• CVE-2022-48628: Fixed possible lock in ceph (bsc#1220848).
• CVE-2022-48629: Fixed possible memory leak in qcom-rng (bsc#1220989).
• CVE-2022-48630: Fixed infinite loop on requests not multiple of WORD_SZ in crypto: qcom-rng (bsc#1220990).
• CVE-2023-0160: Fixed deadlock flaw in BPF that could allow a local user to potentially crash the system (bsc#1209657).
• CVE-2023-28746: Fixed Register File Data Sampling (bsc#1213456).
• CVE-2023-35827: Fixed a use-after-free issue in ravb_tx_timeout_work() (bsc#1212514).
• CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221).
• CVE-2023-52447: Fixed map_fd_put_ptr() signature kABI workaround (bsc#1220251).
• CVE-2023-52450: Fixed NULL pointer dereference issue in upi_fill_topology() (bsc#1220237).
• CVE-2023-52453: Fixed data corruption in hisi_acc_vfio_pci (bsc#1220337).
• CVE-2023-52454: Fixed a kernel panic when host sends an invalid H2C PDU length (bsc#1220320).
• CVE-2023-52462: Fixed check for attempt to corrupt spilled pointer…

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

The following security bugs were fixed:

• CVE-2021-46925: Fixed kernel panic caused by race of smc_sock (bsc#1220466).
• CVE-2021-46926: Fixed bug when detecting controllers in ALSA/hda/intel-sdw-acpi (bsc#1220478).
• CVE-2021-46927: Fixed assertion bug in nitro_enclaves: Use get_user_pages_unlocked() (bsc#1220443).
• CVE-2021-46929: Fixed use-after-free issue in sctp_sock_dump() (bsc#1220482).
• CVE-2021-46930: Fixed usb/mtu3 list_head check warning (bsc#1220484).
• CVE-2021-46931: Fixed wrong type casting in mlx5e_tx_reporter_dump_sq() (bsc#1220486).
• CVE-2021-46933: Fixed possible underflow in ffs_data_clear() (bsc#1220487).
• CVE-2021-46934: Fixed a bug by validating user data in compat ioctl (bsc#1220469).
• CVE-2021-46936: Fixed use-after-free in tw_timer_handler() (bsc#1220439).
• CVE-2021-47082: Fixed ouble free in tun_free_netdev() (bsc#1220969).
• CVE-2021-47083: Fixed a global-out-of-bounds issue in mediatek: (bsc#1220917).
• CVE-2021-47087: Fixed incorrect page free bug in tee/optee (bsc#1220954).
• CVE-2021-47091: Fixed locking in ieee80211_start_ap()) error path (bsc#1220959).
• CVE-2021-47093: Fixed memleak on registration failure in intel_pmc_core (bsc#1220978).
• CVE-2021-47094: Fixed possible memory leak in KVM x86/mmu (bsc#1221551).
• CVE-2021-47095: Fixed missing initialization in ipmi/ssif (bsc#1220979).
• CVE-2021-47096: Fixed uninitalized user_pversion in ALSA rawmidi (bsc#1220981).
• CVE-2021-47097: Fixed stack out of bound access in elantech_change_report_id() (bsc#1220982).
• CVE-2021-47098: Fixed integer overflow/underflow in hysteresis calculations hwmon: (lm90) (bsc#1220983).
• CVE-2021-47099: Fixed BUG_ON assertion in veth when skb entering GRO are cloned (bsc#1220955).
• CVE-2021-47100: Fixed UAF when uninstall in ipmi (bsc#1220985).
• CVE-2021-47101: Fixed uninit-value in asix_mdio_read() (bsc#1220987).
• CVE-2021-47102: Fixed incorrect structure access In line: upper = info->upper_dev in net/marvell/prestera (bsc#1221009).
• CVE-2021-47104: Fixed memory leak in qib_user_sdma_queue_pkts() (bsc#1220960).
• CVE-2021-47105: Fixed potential memory leak in ice/xsk (bsc#1220961).
• CVE-2021-47107: Fixed READDIR buffer overflow in NFSD (bsc#1220965).
• CVE-2021-47108: Fixed possible NULL pointer dereference for mtk_hdmi_conf in drm/mediatek (bsc#1220986).
• CVE-2022-4744: Fixed double-free that could lead to DoS or privilege escalation in TUN/TAP device driver functionality (bsc#1209635).
• CVE-2022-48626: Fixed a potential use-after-free on remove path moxart (bsc#1220366).
• CVE-2022-48627: Fixed a memory overlapping when deleting chars in the buffer (bsc#1220845).
• CVE-2022-48628: Fixed possible lock in ceph (bsc#1220848).
• CVE-2022-48629: Fixed possible memory leak in qcom-rng (bsc#1220989).
• CVE-2022-48630: Fixed infinite loop on requests not multiple of WORD_SZ in crypto: qcom-rng (bsc#1220990).
• CVE-2023-0160: Fixed deadlock flaw in BPF that could allow a local user to potentially crash the system (bsc#1209657).
• CVE-2023-28746: Fixed Register File Data Sampling (bsc#1213456).
• CVE-2023-35827: Fixed a use-after-free issue in ravb_tx_timeout_work() (bsc#1212514).
• CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221).
• CVE-2023-52447: Fixed map_fd_put_ptr() signature kABI workaround (bsc#1220251).
• CVE-2023-52450: Fixed NULL pointer dereference issue in upi_fill_topology() (bsc#1220237).
• CVE-2023-52453: Fixed data corruption in hisi_acc_vfio_pci (bsc#1220337).
• CVE-2023-52454: Fixed a kernel panic when host sends an invalid H2C PDU length (bsc#1220320).
• CVE-2023-52462: Fixed check for attempt to corrupt spilled pointer (bsc#1220325).
• CVE-2023-52463: Fixed null pointer dereference in efivarfs (bsc#1220328).
• CVE-2023-52467: Fixed a null pointer dereference in of_syscon_register…