CVE-2022-1195

A use-after-free vulnerability was found in the Linux kernel in drivers/net/hamradio. This flaw allows a local attacker with a user privilege to cause a denial of service (DOS) when the mkiss or sixpack device is detached and reclaim resources early.

The Linux Kernel, the operating system core itself.

Security Fix(es):

Non-transparent sharing of branch predictor within a context in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.(CVE-2022-0002)

In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently.(CVE-2022-29582)

A use-after-free vulnerability was found in the Linux kernel in drivers/net/hamradio. This flaw allows a local attacker with a user privilege to cause a denial of service (DOS) when the mkiss or sixpack device is detached and reclaim resources early.(CVE-2022-1195)

In mmc_blk_read_single of block.c, there is a possible way to read kernel heap memory due to uninitialized data. This could lead to local information disclosure if reading from an SD card that triggers errors, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-216481035References: Upstream kernel(CVE-2022-20008)

Due to the small table perturb size, a memory leak flaw was found in the Linux kernel’s TCP source port generation algorithm in the net/ipv4/tcp.c function. This flaw allows an attacker to leak information and may cause a denial of service.(CVE-2022-1012)

A flaw was found in the Linux kernel’s nfcmrvl_nci_unregister_dev() function. A race condition leads to a use-after-free issue when simulating the NFC device from the user space.(CVE-2022-1734)

Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14 and later versions.(CVE-2022-29581)

A NULL pointer dereference flaw was found in the Linux kernel’s X.25 set of standardized network protocols functionality in the way a user terminates their session using a simulated Ethernet card and continued usage of this connection. This flaw allows a local user to crash the system.(CVE-2022-1516)

A use-after-free vulnerability was found in the Linux kernel in drivers/net/hamradio. This flaw allows a local attacker with a user privilege to cause a denial of service (DOS) when the mkiss or sixpack device is detached and reclaim resources early.

• CVE-2022-1198
  • drivers: hamradio: 6pack: fix UAF bug caused by mod_timer()
• Bionic update: upstream stable patchset 2022-03-04 (LP: #1963717) // CVE-2020-36516
  • ipv4: avoid using shared IP generator for connected sockets
• CVE-2022-36879
  • xfrm: xfrm_policy: fix a possible double xfrm_pols_put() in xfrm_bundle_lookup()
• CVE-2022-3061
  • video: fbdev: i740fb: Error out if 'pixclock' equals zero
• CVE-2022-1516
  • net/x25: Fix null-ptr-deref caused by x25_disconnect
• CVE-2022-1205
  • ax25: Fix NULL pointer dereferences in ax25 timers
  • ax25: Fix UAF bugs in ax25 timers
• CVE-2022-2318
  • net: rose: fix UAF bugs caused by timer handler
• CVE-2022-1195
  • hamradio: defer 6pack kfree after unregister_netdev
  • hamradio: defer ax25 kfree after unregister_netdev
  • hamradio: improve the incomplete fix to avoid NPD
• CVE-2022-0494
  • block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern
• CVE-2021-26401
  • x86/speculation: Use generic retpoline by default on AMD
• Bionic update: upstream stable patchset 2022-10-18 (LP: #1993349) // CVE-2022-39188
  • mm: Fix TLB flush for not-first PFNMAP mappings in unmap_region()
• Bionic update: upstream stable patchset 2022-10-06 (LP: #1992112) // CVE-2022-39188
  • mm: Force TLB flush for PFNMAP mappings before unlink_file_vma()
• CVE-2022-45934
  • Bluetooth: L2CAP: Fix u8 overflow
• Bionic update: upstream stable patchset 2022-06-21 (LP: #1979355) // CVE-2022-2991
  • lightnvm: disable the subsystem
• Bionic update: upstream stable patchset 2021-11-02 (LP: #1949512) // CVE-2021-4203
  • af_unix: fix races in sk_peer_pid and sk_peer_cred accesses
• Bionic update: upstream stable patchset 2022-04-26 (LP: #1970479) // CVE-2021-3772
  • sctp: fix the processing for INIT chunk
  • sctp: fix the processing for INIT_ACK chunk
• Bionic update: upstream stable patchset 2021-12-03 (LP: #1953202) // CVE-2021-3772
  • sctp: use init_tag from inithdr for ABORT chunk
  • sctp: fix the processing for COOKIE_ECHO chunk
  • sctp: add vtag check in sctp_sf_violation
  • sctp: add vtag check in sctp_sf_do_8_5_1_E_sa
  • sctp: add vtag check in sctp_sf_ootb
• CVE-2022-3303
  • ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC
• Bionic update: upstream stable patchset 2022-09-21 (LP: #1990434) // CVE-2022-1462
  • tty: extract tty_flip_buffer_commit() from tty_flip_buffer_push()
  • tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()
• CVE-2022-1462
  • tty: fix deadlock caused by calling printk() under tty_port->lock
• Bionic update: upstream stable patchset 2020-11-10 (LP: #1903768) // CVE-2022-1462
  • pty: do tty_flip_buffer_push without port->lock in pty_write
• Bionic update: upstream stable patchset 2019-02-08 (LP: #1815234) // CVE-2022-1462
  • tty: Fix data race in tty_insert_flip_string_fixed_flag
• Bionic update: upstream stable patchset 2022-10-18 (LP: #1993349) // CVE-2022-4662
  • USB: core: Prevent nested device-reset calls
• Bionic update: upstream stable patchset 2022-03-04 (LP: #1963717) // CVE-2022-0617
  • udf: Restore i_lenAlloc when inode expansion fails
  • udf: Fix NULL ptr deref when converting from inline format
• Bionic update: upstream stable patchset 2022-04-26 (LP: #1970479) // CVE-2022-1016
  • netfilter: nf_tables: initialize registers in nft_do_chain()
• Bionic update: upstream stable patchset 2022-05-17 (LP: #1973831) // CVE-2022-2380
  • video: fbdev: sm712fb: Fix crash in smtcfb_read()
• Bionic update: upstream stable patchset 2022-05-17 (LP: #1973831) // CVE-2022-3111
  • power: supply: wm8350-power: Add missing free in free_charger_irq
• CVE-2022-3628
  • wifi: brcmfmac: Fix potential buffer overflow in brcmf_fweh_event_worker()
• Bionic update:…

• CVE-2022-1198
  • drivers: hamradio: 6pack: fix UAF bug caused by mod_timer()
• Bionic update: upstream stable patchset 2022-03-04 (LP: #1963717) // CVE-2020-36516
  • ipv4: avoid using shared IP generator for connected sockets
• CVE-2022-36879
  • xfrm: xfrm_policy: fix a possible double xfrm_pols_put() in xfrm_bundle_lookup()
• CVE-2022-3061
  • video: fbdev: i740fb: Error out if 'pixclock' equals zero
• CVE-2022-1516
  • net/x25: Fix null-ptr-deref caused by x25_disconnect
• CVE-2022-1205
  • ax25: Fix NULL pointer dereferences in ax25 timers
  • ax25: Fix UAF bugs in ax25 timers
• CVE-2022-2318
  • net: rose: fix UAF bugs caused by timer handler
• CVE-2022-1195
  • hamradio: defer 6pack kfree after unregister_netdev
  • hamradio: defer ax25 kfree after unregister_netdev
  • hamradio: improve the incomplete fix to avoid NPD
• CVE-2022-0494
  • block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern
• CVE-2021-26401
  • x86/speculation: Use generic retpoline by default on AMD
• Bionic update: upstream stable patchset 2022-10-18 (LP: #1993349) // CVE-2022-39188
  • mm: Fix TLB flush for not-first PFNMAP mappings in unmap_region()
• Bionic update: upstream stable patchset 2022-10-06 (LP: #1992112) // CVE-2022-39188
  • mm: Force TLB flush for PFNMAP mappings before unlink_file_vma()
• CVE-2022-45934
  • Bluetooth: L2CAP: Fix u8 overflow
• Bionic update: upstream stable patchset 2022-06-21 (LP: #1979355) // CVE-2022-2991
  • lightnvm: disable the subsystem
• Bionic update: upstream stable patchset 2021-11-02 (LP: #1949512) // CVE-2021-4203
  • af_unix: fix races in sk_peer_pid and sk_peer_cred accesses
• Bionic update: upstream stable patchset 2022-04-26 (LP: #1970479) // CVE-2021-3772
  • sctp: fix the processing for INIT chunk
  • sctp: fix the processing for INIT_ACK chunk
• Bionic update: upstream stable patchset 2021-12-03 (LP: #1953202) // CVE-2021-3772
  • sctp: use init_tag from inithdr for ABORT chunk
  • sctp: fix the processing for COOKIE_ECHO chunk
  • sctp: add vtag check in sctp_sf_violation
  • sctp: add vtag check in sctp_sf_do_8_5_1_E_sa
  • sctp: add vtag check in sctp_sf_ootb
• CVE-2022-3303
  • ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC
• Bionic update: upstream stable patchset 2022-09-21 (LP: #1990434) // CVE-2022-1462
  • tty: extract tty_flip_buffer_commit() from tty_flip_buffer_push()
  • tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()
• CVE-2022-1462
  • tty: fix deadlock caused by calling printk() under tty_port->lock
• Bionic update: upstream stable patchset 2020-11-10 (LP: #1903768) // CVE-2022-1462
  • pty: do tty_flip_buffer_push without port->lock in pty_write
• Bionic update: upstream stable patchset 2019-02-08 (LP: #1815234) // CVE-2022-1462
  • tty: Fix data race in tty_insert_flip_string_fixed_flag
• Bionic update: upstream stable patchset 2022-10-18 (LP: #1993349) // CVE-2022-4662
  • USB: core: Prevent nested device-reset calls
• Bionic update: upstream stable patchset 2022-03-04 (LP: #1963717) // CVE-2022-0617
  • udf: Restore i_lenAlloc when inode expansion fails
  • udf: Fix NULL ptr deref when converting from inline format
• Bionic update: upstream stable patchset 2022-04-26 (LP: #1970479) // CVE-2022-1016
  • netfilter: nf_tables: initialize registers in nft_do_chain()
• Bionic update: upstream stable patchset 2022-05-17 (LP: #1973831) // CVE-2022-2380
  • video: fbdev: sm712fb: Fix crash in smtcfb_read()
• Bionic update: upstream stable patchset 2022-05-17 (LP: #1973831) // CVE-2022-3111
  • power: supply: wm8350-power: Add missing free in free_charger_irq
• CVE-2022-3628
  • wifi: brcmfmac: Fix potential buffer overflow in brcmf_fweh_event_worker()
• Bionic update:…

A use-after-free vulnerability was found in the Linux kernel in drivers/net/hamradio. This flaw allows a local attacker with a user privilege to cause a denial of service (DOS) when the mkiss or sixpack device is detached and reclaim resources early.

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

The following security bugs were fixed:

• CVE-2022-0854: Fixed a memory leak flaw was found in the Linux kernels DMA subsystem. This flaw allowed a local user to read random memory from the kernel space. (bnc#1196823)
• CVE-2022-1016: Fixed a vulnerability in the nf_tables component of the netfilter subsystem. This vulnerability gives an attacker a powerful primitive that can be used to both read from and write to relative stack data, which can lead to arbitrary code execution. (bsc#1197227)
• CVE-2022-1199: Fixed null-ptr-deref and use-after-free vulnerabilities that allow an attacker to crash the linux kernel by simulating Amateur Radio. (bsc#1198028)
• CVE-2022-1205: Fixed null pointer dereference and use-after-free vulnerabilities that allow an attacker to crash the linux kernel by simulating Amateur Radio. (bsc#1198027)
• CVE-2022-1198: Fixed an use-after-free vulnerability that allow an attacker to crash the linux kernel by simulating Amateur Radio (bsc#1198030).
• CVE-2022-1195: Fixed an use-after-free vulnerability which could allow a local attacker with a user privilege to execute a denial of service. (bsc#1198029)
• CVE-2022-28389: Fixed a double free in drivers/net/can/usb/mcba_usb.c vulnerability in the Linux kernel. (bnc#1198033)
• CVE-2022-28388: Fixed a double free in drivers/net/can/usb/usb_8dev.c vulnerability in the Linux kernel. (bnc#1198032)
• CVE-2022-28390: Fixed a double free in drivers/net/can/usb/ems_usb.c vulnerability in the Linux kernel. (bnc#1198031)
• CVE-2022-1048: Fixed a race Condition in snd_pcm_hw_free leading to use-after-free due to the AB/BA lock with buffer_mutex and mmap_lock. (bsc#1197331)
• CVE-2022-1055: Fixed a use-after-free in tc_new_tfilter that could allow a local attacker to gain privilege escalation. (bnc#1197702)
• CVE-2022-0850: Fixed a kernel information leak vulnerability in iov_iter.c. (bsc#1196761)
• CVE-2022-27666: Fixed a buffer overflow vulnerability in IPsec ESP transformation code. This flaw allowed a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation. (bnc#1197462)
• CVE-2021-45868: Fixed a wrong validation check in fs/quota/quota_tree.c which could lead to an use-after-free if there is a corrupted quota file. (bnc#1197366)
• CVE-2022-1011: Fixed an use-after-free vulnerability which could allow a local attacker to retireve (partial) /etc/shadow hashes or any other data from filesystem when he can mount a FUSE filesystems. (bnc#1197343)
• CVE-2022-27223: Fixed an out-of-array access in /usb/gadget/udc/udc-xilinx.c. (bsc#1197245)
• CVE-2021-39698: Fixed a possible memory corruption due to a use after free in aio_poll_complete_work. This could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1196956)
• CVE-2021-45402: Fixed a pointer leak in check_alu_op() of kernel/bpf/verifier.c. (bsc#1196130).
• CVE-2022-23036,CVE-2022-23037,CVE-2022-23038,CVE-2022-23039,CVE-2022-23040,CVE-2022-23041,CVE-2022-23042: Fixed multiple issues which could have lead to read/write access to memory pages or denial of service. These issues are related to the Xen PV device frontend drivers. (bsc#1196488)

The following non-security bugs were fixed:

• ACPI / x86: Work around broken XSDT on Advantech DAC-BJ01 board (git-fixes).
• ACPI: APEI: fix return value of __setup handlers (git-fixes).
• ACPI: battery: Add device HID and quirk for Microsoft Surface Go 3 (git-fixes).
• ACPI: CPPC: Avoid out of bounds access when parsing _CPC data (git-fixes).
• ACPI: docs: enumeration: Discourage to use custom _DSM methods (git-fixes).
• ACPI: docs: enumeration: Remove redundant .owner assignment (git-fixes).
• ACPI: properties: Consistently return -ENOENT if there are no more references (git-fixes).
• ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU (git-fixes).
• ALSA: cmipci:…

The SUSE Linux Enterprise 15 SP3 kernel was updated.

The following security bugs were fixed:

• CVE-2022-0854: Fixed a memory leak flaw was found in the Linux kernels DMA subsystem. This flaw allowed a local user to read random memory from the kernel space. (bnc#1196823)
• CVE-2022-1016: Fixed a vulnerability in the nf_tables component of the netfilter subsystem. This vulnerability gives an attacker a powerful primitive that can be used to both read from and write to relative stack data, which can lead to arbitrary code execution. (bsc#1197227)
• CVE-2022-28390: Fixed a double free in drivers/net/can/usb/ems_usb.c vulnerability in the Linux kernel. (bnc#1198031)
• CVE-2022-28388: Fixed a double free in drivers/net/can/usb/usb_8dev.c vulnerability in the Linux kernel. (bnc#1198032)
• CVE-2022-28389: Fixed a double free in drivers/net/can/usb/mcba_usb.c vulnerability in the Linux kernel. (bnc#1198033)
• CVE-2022-1055: Fixed a use-after-free in tc_new_tfilter that could allow a local attacker to gain privilege escalation. (bnc#1197702)
• CVE-2022-1048: Fixed a race Condition in snd_pcm_hw_free leading to use-after-free due to the AB/BA lock with buffer_mutex and mmap_lock. (bsc#1197331)
• CVE-2021-45868: Fixed a wrong validation check in fs/quota/quota_tree.c which could lead to an use-after-free if there is a corrupted quota file. (bnc#1197366)
• CVE-2022-27666: Fixed a buffer overflow vulnerability in IPsec ESP transformation code. This flaw allowed a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation. (bnc#1197462)
• CVE-2022-0850: Fixed a kernel information leak vulnerability in iov_iter.c. (bsc#1196761)
• CVE-2022-1199: Fixed null-ptr-deref and use-after-free vulnerabilities that allow an attacker to crash the linux kernel by simulating Amateur Radio. (bsc#1198028)
• CVE-2022-1205: Fixed null pointer dereference and use-after-free vulnerabilities that allow an attacker to crash the linux kernel by simulating Amateur Radio. (bsc#1198027)
• CVE-2022-1198: Fixed an use-after-free vulnerability that allow an attacker to crash the linux kernel by simulating Amateur Radio (bsc#1198030).
• CVE-2022-1195: Fixed an use-after-free vulnerability which could allow a local attacker with a user privilege to execute a denial of service. (bsc#1198029)
• CVE-2022-1011: Fixed an use-after-free vulnerability which could allow a local attacker to retireve (partial) /etc/shadow hashes or any other data from filesystem when he can mount a FUSE filesystems. (bnc#1197343)

The following non-security bugs were fixed:

• ACPI / x86: Work around broken XSDT on Advantech DAC-BJ01 board (git-fixes).
• ACPI: APEI: fix return value of __setup handlers (git-fixes).
• ACPI: battery: Add device HID and quirk for Microsoft Surface Go 3 (git-fixes).
• ACPI: CPPC: Avoid out of bounds access when parsing _CPC data (git-fixes).
• ACPI: docs: enumeration: Discourage to use custom _DSM methods (git-fixes).
• ACPI: docs: enumeration: Remove redundant .owner assignment (git-fixes).
• ACPI: docs: enumeration: Update UART serial bus resource documentation (git-fixes).
• ACPI: properties: Consistently return -ENOENT if there are no more references (git-fixes).
• ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU (git-fixes).
• ALSA: cmipci: Restore aux vol on suspend/resume (git-fixes).
• ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction (git-fixes).
• ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671 (git-fixes).
• ALSA: hda/realtek: Add quirk for ASUS GA402 (git-fixes).
• ALSA: oss: Fix PCM OSS buffer allocation overflow (git-fixes).
• ALSA: pci: fix reading of swapped values from pcmreg in AC97 codec (git-fixes).
• ALSA: pcm: Add stream lock during PCM reset ioctl operations (git-fixes).
• ALSA: spi: Add check for clk_enable() (git-fixes).
• ALSA: usb-audio: Add mute TLV for playback volumes on RODE NT-USB (git-fixes).
• ASoC:…

The SUSE Linux Enterprise 15 SP3 kernel was updated.

The following security bugs were fixed:

• CVE-2022-0854: Fixed a memory leak flaw was found in the Linux kernels DMA subsystem. This flaw allowed a local user to read random memory from the kernel space. (bnc#1196823)
• CVE-2022-1016: Fixed a vulnerability in the nf_tables component of the netfilter subsystem. This vulnerability gives an attacker a powerful primitive that can be used to both read from and write to relative stack data, which can lead to arbitrary code execution. (bsc#1197227)
• CVE-2022-1199: Fixed null-ptr-deref and use-after-free vulnerabilities that allow an attacker to crash the linux kernel by simulating Amateur Radio. (bsc#1198028)
• CVE-2022-1205: Fixed null pointer dereference and use-after-free vulnerabilities that allow an attacker to crash the linux kernel by simulating Amateur Radio. (bsc#1198027)
• CVE-2022-1198: Fixed an use-after-free vulnerability that allow an attacker to crash the linux kernel by simulating Amateur Radio (bsc#1198030).
• CVE-2022-1195: Fixed an use-after-free vulnerability which could allow a local attacker with a user privilege to execute a denial of service. (bsc#1198029)
• CVE-2022-28390: Fixed a double free in drivers/net/can/usb/ems_usb.c vulnerability in the Linux kernel. (bnc#1198031)
• CVE-2022-28388: Fixed a double free in drivers/net/can/usb/usb_8dev.c vulnerability in the Linux kernel. (bnc#1198032)
• CVE-2022-28389: Fixed a double free in drivers/net/can/usb/mcba_usb.c vulnerability in the Linux kernel. (bnc#1198033)
• CVE-2022-1048: Fixed a race Condition in snd_pcm_hw_free leading to use-after-free due to the AB/BA lock with buffer_mutex and mmap_lock. (bsc#1197331)
• CVE-2022-1055: Fixed a use-after-free in tc_new_tfilter that could allow a local attacker to gain privilege escalation. (bnc#1197702)
• CVE-2022-0850: Fixed a kernel information leak vulnerability in iov_iter.c. (bsc#1196761)
• CVE-2022-27666: Fixed a buffer overflow vulnerability in IPsec ESP transformation code. This flaw allowed a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation. (bnc#1197462)
• CVE-2021-45868: Fixed a wrong validation check in fs/quota/quota_tree.c which could lead to an use-after-free if there is a corrupted quota file. (bnc#1197366)
• CVE-2022-1011: Fixed an use-after-free vulnerability which could allow a local attacker to retireve (partial) /etc/shadow hashes or any other data from filesystem when he can mount a FUSE filesystems. (bnc#1197343)

The following non-security bugs were fixed:

• ACPI: APEI: fix return value of __setup handlers (git-fixes).
• ACPI: battery: Add device HID and quirk for Microsoft Surface Go 3 (git-fixes).
• ACPI: CPPC: Avoid out of bounds access when parsing _CPC data (git-fixes).
• ACPI: docs: enumeration: Discourage to use custom _DSM methods (git-fixes).
• ACPI: docs: enumeration: Remove redundant .owner assignment (git-fixes).
• ACPI: docs: enumeration: Update UART serial bus resource documentation (git-fixes).
• ACPI: properties: Consistently return -ENOENT if there are no more references (git-fixes).
• ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU (git-fixes).
• ACPI: Work around broken XSDT on Advantech DAC-BJ01 board (git-fixes).
• ALSA: cmipci: Restore aux vol on suspend/resume (git-fixes).
• ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction (git-fixes).
• ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671 (git-fixes).
• ALSA: hda/realtek: Add quirk for ASUS GA402 (git-fixes).
• ALSA: oss: Fix PCM OSS buffer allocation overflow (git-fixes).
• ALSA: pci: fix reading of swapped values from pcmreg in AC97 codec (git-fixes).
• ALSA: pcm: Add stream lock during PCM reset ioctl operations (git-fixes).
• ALSA: spi: Add check for clk_enable() (git-fixes).
• ALSA: usb-audio: Add mute TLV for playback volumes on RODE NT-USB (git-fixes).
• ASoC: atmel_ssc_dai:…

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

The following security bugs were fixed:

• CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2021-47402: Protect fl_walk() with rcu (bsc#1225301)
• CVE-2022-48673: kABI workarounds for struct smc_link (bsc#1223934).
• CVE-2023-52871: Handle a second device without data corruption (bsc#1225534)
• CVE-2024-26828: Fixed underflow in parse_server_interfaces() (bsc#1223084).
• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2024-27413: Fixed incorrect allocation size (bsc#1224438).
• CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2023-52840: Fix use after free in rmi_unregister_function() (bsc#1224928).
• CVE-2021-47261: Fix initializing CQ fragments buffer (bsc#1224954)
• CVE-2021-47254: Fix use-after-free in gfs2_glock_shrink_scan (bsc#1224888).
• CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
• CVE-2024-26929: Fixed double free of fcport (bsc#1223715).
• CVE-2024-26930: Fixed double free of the ha->vp_map pointer (bsc#1223626).
• CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
• 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-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
• CVE-2023-52686: Fix a null pointer in opal_event_init() (bsc#1065729).

The following non-security bugs were fixed:

• af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress (bsc#1223384).
• af_unix: Do not use atomic ops for unix_sk(sk)->inflight (bsc#1223384).
• af_unix: Replace BUG_ON() with WARN_ON_ONCE() (bsc#1223384).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• cifs: add missing spinlock around tcon refcount (bsc#1213476).
• cifs: avoid dup prefix path in dfs_get_automount_devname() (bsc#1213476).
• cifs: avoid race conditions with parallel reconnects (bsc#1213476).
• cifs: avoid re-lookups in dfs_cache_find() (bsc#1213476).
• cifs: avoid use of global locks for high contention data (bsc#1213476).
• cifs: check only tcon status on tcon related functions (bsc#1213476).
• cifs: do all necessary checks for credits within or before locking (bsc#1213476).
• cifs: do not block in dfs_cache_noreq_update_tgthint() (bsc#1213476).
• cifs: do not refresh cached referrals from unactive mounts (bsc#1213476).
• cifs: do not take exclusive lock for updating target hints (bsc#1213476).
• cifs: fix confusing debug message (bsc#1213476).
• cifs: fix missing unload_nls() in smb2_reconnect() (bsc#1213476).
• cifs: fix potential deadlock in cache_refresh_path() (bsc#1213476).
• cifs: fix refresh of cached referrals (bsc#1213476).
• cifs: fix return of uninitialized rc in dfs_cache_update_tgthint() (bsc#1213476).
• cifs: fix source pathname comparison of dfs supers (bsc#1213476).
• cifs: fix status checks in cifs_tree_connect (bsc#1213476).
• cifs: fix use-after-free bug in refresh_cache_worker() (bsc#1213476).
• cifs: get rid of dns resolve worker (bsc#1213476).
• cifs: get rid of mount options string parsing (bsc#1213476).
• cifs: handle cache lookup errors different than -ENOENT (bsc#1213476).
• cifs: ignore ipc reconnect failures during dfs failover (bsc#1213476).
• cifs: match even the scope id for ipv6 addresses (bsc#1213476).
• cifs: optimize reconnect of nested links (bsc#1213476).
• cifs: prevent data race in smb2_reconnect() (bsc#1213476). -…

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

The following security bugs were fixed:

• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2021-47402: Protect fl_walk() with rcu (bsc#1225301)
• CVE-2022-48673: kABI workarounds for struct smc_link (bsc#1223934).
• CVE-2023-52871: Handle a second device without data corruption (bsc#1225534)
• CVE-2024-26828: Fix underflow in parse_server_interfaces() (bsc#1223084).
• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2024-27413: Fix incorrect allocation size (bsc#1224438).
• CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2023-52840: Fix use after free in rmi_unregister_function() (bsc#1224928).
• CVE-2021-47261: Fix initializing CQ fragments buffer (bsc#1224954)
• CVE-2021-47254: Fix use-after-free in gfs2_glock_shrink_scan (bsc#1224888).
• CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
• CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
• CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
• 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-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
• CVE-2023-52686: Fix a null pointer in opal_event_init() (bsc#1065729).

The following non-security bugs were fixed:

• af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress (bsc#1223384).
• af_unix: Do not use atomic ops for unix_sk(sk)->inflight (bsc#1223384).
• af_unix: Replace BUG_ON() with WARN_ON_ONCE() (bsc#1223384).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• cifs: add missing spinlock around tcon refcount (bsc#1213476).
• cifs: avoid dup prefix path in dfs_get_automount_devname() (bsc#1213476).
• cifs: avoid race conditions with parallel reconnects (bsc#1213476).
• cifs: avoid re-lookups in dfs_cache_find() (bsc#1213476).
• cifs: avoid use of global locks for high contention data (bsc#1213476).
• cifs: check only tcon status on tcon related functions (bsc#1213476).
• cifs: do all necessary checks for credits within or before locking (bsc#1213476).
• cifs: do not block in dfs_cache_noreq_update_tgthint() (bsc#1213476).
• cifs: do not refresh cached referrals from unactive mounts (bsc#1213476).
• cifs: do not take exclusive lock for updating target hints (bsc#1213476).
• cifs: fix confusing debug message (bsc#1213476).
• cifs: fix missing unload_nls() in smb2_reconnect() (bsc#1213476).
• cifs: fix potential deadlock in cache_refresh_path() (bsc#1213476).
• cifs: fix refresh of cached referrals (bsc#1213476).
• cifs: fix return of uninitialized rc in dfs_cache_update_tgthint() (bsc#1213476).
• cifs: fix source pathname comparison of dfs supers (bsc#1213476).
• cifs: fix status checks in cifs_tree_connect (bsc#1213476).
• cifs: fix use-after-free bug in refresh_cache_worker() (bsc#1213476).
• cifs: get rid of dns resolve worker (bsc#1213476).
• cifs: get rid of mount options string parsing (bsc#1213476).
• cifs: handle cache lookup errors different than -ENOENT (bsc#1213476).
• cifs: ignore ipc reconnect failures during dfs failover (bsc#1213476).
• cifs: match even the scope id for ipv6 addresses (bsc#1213476).
• cifs: optimize reconnect of nested links (bsc#1213476).
• cifs: prevent data race in smb2_reconnect() (bsc#1213476). -…

It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. (CVE-2022-21499)

Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1966)

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)

Hu Jiahui discovered that multiple race conditions existed in the Advanced Linux Sound Architecture (ALSA) framework, leading to use-after-free vulnerabilities. A local attacker could use these to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1048)

Qiuhao Li, Gaoning Pan and Yongkang Jia discovered that the KVM implementation in the Linux kernel did not properly perform guest page table updates in some situations. An attacker in a guest vm could possibly use this to crash the host OS. (CVE-2022-1158)

It was discovered that the implementation of the 6pack and mkiss protocols in the Linux kernel did not handle detach events properly 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-2022-1195)

Duoming Zhou discovered that the 6pack protocol implementation in the Linux kernel did not handle detach events properly in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-1198)

Duoming Zhou discovered that the AX.25 amateur radio protocol implementation in the Linux kernel did not handle detach events properly in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1199)

Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol implementation in the Linux kernel during device detach operations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1204)

Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol implementation in the Linux kernel, leading to use-after-free vulnerabilities. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1205)

Qiuhao Li, Gaoning Pan, and Yongkang Jia discovered that the kvm implementation in the Linux kernel did not handle releasing a virtual cpu properly. A local attacker in a guest VM coud possibly use this to cause a denial of service (host system crash). (CVE-2022-1263)

It was discovered that the PF_KEYv2 implementation in the Linux kernel did not properly initialize kernel memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-1353)

It was discovered that the implementation of X.25 network protocols in the Linux kernel did not terminate link layer sessions properly. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1516)

It was discovered that the ACRN Hypervisor Service Module implementation in the Linux kernel did not properly deallocate memory in some situations. A local privileged attacker could possibly use this to cause a denial of service (memory exhaustion). (CVE-2022-1651)

It was discovered that the RxRPC session socket implementation in the Linux kernel did not properly handle ioctls called when no security protocol is given. A local attacker could use this to cause a denial of service (system crash) or possibly expose…

It was discovered that the implementation of the 6pack and mkiss protocols in the Linux kernel did not handle detach events properly 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-2022-1195)

Duoming Zhou discovered that the AX.25 amateur radio protocol implementation in the Linux kernel did not handle detach events properly in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1199)

Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol implementation in the Linux kernel during device detach operations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1204)

Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol implementation in the Linux kernel, leading to use-after-free vulnerabilities. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1205)

Yongkang Jia discovered that the KVM hypervisor implementation in the Linux kernel did not properly handle guest TLB mapping invalidation requests in some situations. An attacker in a guest VM could use this to cause a denial of service (system crash) in the host OS. (CVE-2022-1789)

Minh Yuan discovered that the floppy driver in the Linux kernel contained a race condition in some situations, 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-2022-33981)

It was discovered that the implementation of the 6pack and mkiss protocols in the Linux kernel did not handle detach events properly 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-2022-1195)

Duoming Zhou discovered that the AX.25 amateur radio protocol implementation in the Linux kernel did not handle detach events properly in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1199)

Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol implementation in the Linux kernel during device detach operations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1204)

Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol implementation in the Linux kernel, leading to use-after-free vulnerabilities. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1205)

Yongkang Jia discovered that the KVM hypervisor implementation in the Linux kernel did not properly handle guest TLB mapping invalidation requests in some situations. An attacker in a guest VM could use this to cause a denial of service (system crash) in the host OS. (CVE-2022-1789)

It was discovered that the 8 Devices USB2CAN interface implementation in the Linux kernel did not properly handle certain error conditions, leading to a double-free. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-28388)

Minh Yuan discovered that the floppy driver in the Linux kernel contained a race condition in some situations, 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-2022-33981)

Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-2588)

It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-2586)

It was discovered that the block layer subsystem in the Linux kernel did not properly initialize memory in some situations. A privileged local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0494)

Hu Jiahui discovered that multiple race conditions existed in the Advanced Linux Sound Architecture (ALSA) framework, leading to use-after-free vulnerabilities. A local attacker could use these to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1048)

It was discovered that the implementation of the 6pack and mkiss protocols in the Linux kernel did not handle detach events properly 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-2022-1195)

Minh Yuan discovered that the floppy disk driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1652)

It was discovered that the Atheros ath9k wireless device driver in the Linux kernel did not properly handle some 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-2022-1679)

Norbert Slusarek discovered that a race condition existed in the perf subsystem in the Linux kernel, resulting in a use-after-free vulnerability. A privileged local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1729)

It was discovered that the Marvell NFC device driver implementation in the Linux kernel did not properly perform memory cleanup operations 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) or execute arbitrary code. (CVE-2022-1734)

Duoming Zhou discovered a race condition in the NFC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A privileged local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1974)

Duoming Zhou discovered that the NFC subsystem in the Linux kernel did not properly prevent context switches from occurring during certain atomic context operations. A privileged local attacker could use this to cause a denial of service (system crash). (CVE-2022-1975)

Minh Yuan discovered that the floppy driver in the Linux kernel contained a race condition in some situations, 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-2022-33981)

Arthur Mongodin discovered that the netfilter subsystem in the Linux kernel did not properly perform data validation. A local attacker could use this to escalate privileges in certain situations. (CVE-2022-34918)

Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-2588)

It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-2586)

It was discovered that the block layer subsystem in the Linux kernel did not properly initialize memory in some situations. A privileged local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0494)

Hu Jiahui discovered that multiple race conditions existed in the Advanced Linux Sound Architecture (ALSA) framework, leading to use-after-free vulnerabilities. A local attacker could use these to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1048)

It was discovered that the implementation of the 6pack and mkiss protocols in the Linux kernel did not handle detach events properly 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-2022-1195)

Minh Yuan discovered that the floppy disk driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1652)

It was discovered that the Atheros ath9k wireless device driver in the Linux kernel did not properly handle some 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-2022-1679)

Norbert Slusarek discovered that a race condition existed in the perf subsystem in the Linux kernel, resulting in a use-after-free vulnerability. A privileged local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1729)

It was discovered that the Marvell NFC device driver implementation in the Linux kernel did not properly perform memory cleanup operations 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) or execute arbitrary code. (CVE-2022-1734)

Duoming Zhou discovered a race condition in the NFC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A privileged local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1974)

Duoming Zhou discovered that the NFC subsystem in the Linux kernel did not properly prevent context switches from occurring during certain atomic context operations. A privileged local attacker could use this to cause a denial of service (system crash). (CVE-2022-1975)

Minh Yuan discovered that the floppy driver in the Linux kernel contained a race condition in some situations, 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-2022-33981)

Arthur Mongodin discovered that the netfilter subsystem in the Linux kernel did not properly perform data validation. A local attacker could use this to escalate privileges in certain situations. (CVE-2022-34918)

Xuewei Feng, Chuanpu Fu, Qi Li, Kun Sun, and Ke Xu discovered that the TCP implementation in the Linux kernel did not properly handle IPID assignment. A remote attacker could use this to cause a denial of service (connection termination) or inject forged data. (CVE-2020-36516)

Ke Sun, Alyssa Milburn, Henrique Kawakami, Emma Benoit, Igor Chervatyuk, Lisa Aichele, and Thais Moreira Hamasaki discovered that the Spectre Variant 2 mitigations for AMD processors on Linux were insufficient in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2021-26401)

Jürgen Groß discovered that the Xen subsystem within the Linux kernel did not adequately limit the number of events driver domains (unprivileged PV backends) could send to other guest VMs. An attacker in a driver domain could use this to cause a denial of service in other guest VMs. (CVE-2021-28712, CVE-2021-28713)

Wolfgang Frisch discovered that the ext4 file system implementation in the Linux kernel contained an integer overflow when handling metadata inode extents. 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-2021-3428)

It was discovered that the IEEE 802.15.4 wireless network subsystem in the Linux kernel did not properly handle certain error conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2021-3659)

It was discovered that the System V IPC implementation in the Linux kernel did not properly handle large shared memory counts. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2021-3669)

Alois Wohlschlager discovered that the overlay file system in the Linux kernel did not restrict private clones in some situations. An attacker could use this to expose sensitive information. (CVE-2021-3732)

It was discovered that the SCTP protocol implementation in the Linux kernel did not properly verify VTAGs in some situations. A remote attacker could possibly use this to cause a denial of service (connection disassociation). (CVE-2021-3772)

It was discovered that the btrfs file system implementation in the Linux kernel did not properly handle locking in certain error conditions. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2021-4149)

Jann Horn discovered that the socket subsystem in the Linux kernel contained a race condition when handling listen() and connect() operations, leading to a read-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2021-4203)

It was discovered that the file system quotas implementation in the Linux kernel did not properly validate the quota block number. An attacker could use this to construct a malicious file system image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2021-45868)

Zhihua Yao discovered that the MOXART SD/MMC driver in the Linux kernel did not properly handle device removal, leading to a use-after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-0487)

It was discovered that the block layer subsystem in the Linux kernel did not properly initialize memory in some situations. A privileged local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0494)

It was discovered that the UDF file system implementation in the Linux kernel could attempt to dereference a null pointer in some situations. An attacker could use this to construct a malicious UDF image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2022-0617)

David Bouman discovered that the netfilter subsystem in the Linux kernel did not initialize memory in some…

Xuewei Feng, Chuanpu Fu, Qi Li, Kun Sun, and Ke Xu discovered that the TCP implementation in the Linux kernel did not properly handle IPID assignment. A remote attacker could use this to cause a denial of service (connection termination) or inject forged data. (CVE-2020-36516)

Ke Sun, Alyssa Milburn, Henrique Kawakami, Emma Benoit, Igor Chervatyuk, Lisa Aichele, and Thais Moreira Hamasaki discovered that the Spectre Variant 2 mitigations for AMD processors on Linux were insufficient in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2021-26401)

Jürgen Groß discovered that the Xen subsystem within the Linux kernel did not adequately limit the number of events driver domains (unprivileged PV backends) could send to other guest VMs. An attacker in a driver domain could use this to cause a denial of service in other guest VMs. (CVE-2021-28712, CVE-2021-28713)

Wolfgang Frisch discovered that the ext4 file system implementation in the Linux kernel contained an integer overflow when handling metadata inode extents. 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-2021-3428)

It was discovered that the IEEE 802.15.4 wireless network subsystem in the Linux kernel did not properly handle certain error conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2021-3659)

It was discovered that the System V IPC implementation in the Linux kernel did not properly handle large shared memory counts. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2021-3669)

Alois Wohlschlager discovered that the overlay file system in the Linux kernel did not restrict private clones in some situations. An attacker could use this to expose sensitive information. (CVE-2021-3732)

It was discovered that the SCTP protocol implementation in the Linux kernel did not properly verify VTAGs in some situations. A remote attacker could possibly use this to cause a denial of service (connection disassociation). (CVE-2021-3772)

It was discovered that the btrfs file system implementation in the Linux kernel did not properly handle locking in certain error conditions. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2021-4149)

Jann Horn discovered that the socket subsystem in the Linux kernel contained a race condition when handling listen() and connect() operations, leading to a read-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2021-4203)

It was discovered that the file system quotas implementation in the Linux kernel did not properly validate the quota block number. An attacker could use this to construct a malicious file system image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2021-45868)

Zhihua Yao discovered that the MOXART SD/MMC driver in the Linux kernel did not properly handle device removal, leading to a use-after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-0487)

It was discovered that the block layer subsystem in the Linux kernel did not properly initialize memory in some situations. A privileged local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0494)

It was discovered that the UDF file system implementation in the Linux kernel could attempt to dereference a null pointer in some situations. An attacker could use this to construct a malicious UDF image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2022-0617)

David Bouman discovered that the netfilter subsystem in the Linux kernel did not initialize memory in some…

Xuewei Feng, Chuanpu Fu, Qi Li, Kun Sun, and Ke Xu discovered that the TCP implementation in the Linux kernel did not properly handle IPID assignment. A remote attacker could use this to cause a denial of service (connection termination) or inject forged data. (CVE-2020-36516)

Ke Sun, Alyssa Milburn, Henrique Kawakami, Emma Benoit, Igor Chervatyuk, Lisa Aichele, and Thais Moreira Hamasaki discovered that the Spectre Variant 2 mitigations for AMD processors on Linux were insufficient in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2021-26401)

Jürgen Groß discovered that the Xen subsystem within the Linux kernel did not adequately limit the number of events driver domains (unprivileged PV backends) could send to other guest VMs. An attacker in a driver domain could use this to cause a denial of service in other guest VMs. (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)

Wolfgang Frisch discovered that the ext4 file system implementation in the Linux kernel contained an integer overflow when handling metadata inode extents. 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-2021-3428)

It was discovered that the IEEE 802.15.4 wireless network subsystem in the Linux kernel did not properly handle certain error conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2021-3659)

It was discovered that the System V IPC implementation in the Linux kernel did not properly handle large shared memory counts. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2021-3669)

Alois Wohlschlager discovered that the overlay file system in the Linux kernel did not restrict private clones in some situations. An attacker could use this to expose sensitive information. (CVE-2021-3732)

It was discovered that the SCTP protocol implementation in the Linux kernel did not properly verify VTAGs in some situations. A remote attacker could possibly use this to cause a denial of service (connection disassociation). (CVE-2021-3772)

It was discovered that the btrfs file system implementation in the Linux kernel did not properly handle locking in certain error conditions. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2021-4149)

Jann Horn discovered that the socket subsystem in the Linux kernel contained a race condition when handling listen() and connect() operations, leading to a read-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2021-4203)

It was discovered that the file system quotas implementation in the Linux kernel did not properly validate the quota block number. An attacker could use this to construct a malicious file system image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2021-45868)

Zhihua Yao discovered that the MOXART SD/MMC driver in the Linux kernel did not properly handle device removal, leading to a use-after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-0487)

It was discovered that the block layer subsystem in the Linux kernel did not properly initialize memory in some situations. A privileged local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0494)

It was discovered that the UDF file system implementation in the Linux kernel could attempt to dereference a null pointer in some situations. An attacker could use this to construct a malicious UDF image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2022-0617)

David Bouman discovered that the netfilter subsystem in the Linux kernel did not initialize memory in…