CVE-2023-4385

A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.

A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.

The Linux Kernel, the operating system core itself.

Security Fix(es):

A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.(CVE-2023-1206)

A buffer overrun vulnerability was found in the netback driver in Xen due to an unusual split packet. This flaw allows an unprivileged guest to cause a denial of service (DoS) of the host by sending network packets to the backend, causing the backend to crash.(CVE-2023-34319)

An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.(CVE-2023-40283)

A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 ("tun: tun_chr_open(): correctly initialize socket uid"), - 66b2c338adce ("tap: tap_open(): correctly initialize socket uid"), pass "inode->i_uid" to sock_init_data_uid() as the last parameter and that turns out to not be accurate.(CVE-2023-4194)

A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.(CVE-2023-4385)

A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.(CVE-2023-4459)

The Linux Kernel, the operating system core itself.

Security Fix(es):

A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.(CVE-2023-1206)

A buffer overrun vulnerability was found in the netback driver in Xen due to an unusual split packet. This flaw allows an unprivileged guest to cause a denial of service (DoS) of the host by sending network packets to the backend, causing the backend to crash.(CVE-2023-34319)

An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.(CVE-2023-40283)

A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 ("tun: tun_chr_open(): correctly initialize socket uid"), - 66b2c338adce ("tap: tap_open(): correctly initialize socket uid"), pass "inode->i_uid" to sock_init_data_uid() as the last parameter and that turns out to not be accurate.(CVE-2023-4194)

A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.(CVE-2023-4385)

A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.(CVE-2023-4459)

A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.

• CVE-url: https://ubuntu.com/security/CVE-2023-42753
  • netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
• CVE-2022-40982 // CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • init: Provide arch_cpu_finalize_init()
  • x86/cpu: Switch to arch_cpu_finalize_init()
  • init: Remove check_bugs() leftovers
  • x86/speculation: Add Gather Data Sampling mitigation
  • x86/speculation: Add force option to GDS mitigation
  • x86/speculation: Add Kconfig option for GDS
  • KVM: Add GDS_NO support to KVM
• CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • x86/cpu: Move arch_smt_update() to a neutral place
• Bionic update: upstream stable patchset 2019-07-23 (LP: #1837664) // CVE- url: https://ubuntu.com/security/CVE-2022-40982
  • cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM
• Jammy update: v5.15.94 upstream stable release (LP: #2012673) // CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • x86/speculation: Identify processors vulnerable to SMT RSB predictions
• CVE-2023-20588 // CVE-url: https://ubuntu.com/security/CVE-2023-20588
  • x86/bugs: Increase the x86 bugs vector size to two u32s
  • x86/CPU/AMD: Do not leak quotient data after a division by 0
  • x86/CPU/AMD: Fix the DIV(0) initial fix attempt
• CVE-2023-3863 // CVE-url: https://ubuntu.com/security/CVE-2023-3863
  • nfc: llcp: simplify llcp_sock_connect() error paths
  • net: nfc: Fix use-after-free caused by nfc_llcp_find_local
• Jammy update: v5.15.46 upstream stable release (LP: #1981864) // CVE-url: https://ubuntu.com/security/CVE-2023-4385
  • fs: jfs: fix possible NULL pointer dereference in dbFree()
• Jammy update: v5.15.42 upstream stable release (LP: #1981375) // CVE-url: https://ubuntu.com/security/CVE-2023-4459
  • net: vmxnet3: fix possible NULL pointer dereference in vmxnet3_rq_cleanup()
• CVE-url: https://ubuntu.com/security/CVE-2023-4921
  • net: sched: sch_qfq: Fix UAF in qfq_dequeue()
• Miscellaneous Ubuntu changes
  • [Config] CONFIG_GDS_FORCE_MITIGATION=n

• CVE-url: https://ubuntu.com/security/CVE-2023-42753
  • netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
• CVE-2022-40982 // CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • init: Provide arch_cpu_finalize_init()
  • x86/cpu: Switch to arch_cpu_finalize_init()
  • init: Remove check_bugs() leftovers
  • x86/speculation: Add Gather Data Sampling mitigation
  • x86/speculation: Add force option to GDS mitigation
  • x86/speculation: Add Kconfig option for GDS
  • KVM: Add GDS_NO support to KVM
• CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • x86/cpu: Move arch_smt_update() to a neutral place
• Bionic update: upstream stable patchset 2019-07-23 (LP: #1837664) // CVE- url: https://ubuntu.com/security/CVE-2022-40982
  • cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM
• Jammy update: v5.15.94 upstream stable release (LP: #2012673) // CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • x86/speculation: Identify processors vulnerable to SMT RSB predictions
• CVE-2023-20588 // CVE-url: https://ubuntu.com/security/CVE-2023-20588
  • x86/bugs: Increase the x86 bugs vector size to two u32s
  • x86/CPU/AMD: Do not leak quotient data after a division by 0
  • x86/CPU/AMD: Fix the DIV(0) initial fix attempt
• CVE-2023-3863 // CVE-url: https://ubuntu.com/security/CVE-2023-3863
  • nfc: llcp: simplify llcp_sock_connect() error paths
  • net: nfc: Fix use-after-free caused by nfc_llcp_find_local
• Jammy update: v5.15.46 upstream stable release (LP: #1981864) // CVE-url: https://ubuntu.com/security/CVE-2023-4385
  • fs: jfs: fix possible NULL pointer dereference in dbFree()
• Jammy update: v5.15.42 upstream stable release (LP: #1981375) // CVE-url: https://ubuntu.com/security/CVE-2023-4459
  • net: vmxnet3: fix possible NULL pointer dereference in vmxnet3_rq_cleanup()
• CVE-url: https://ubuntu.com/security/CVE-2023-4921
  • net: sched: sch_qfq: Fix UAF in qfq_dequeue()
• Miscellaneous Ubuntu changes
  • [Config] CONFIG_GDS_FORCE_MITIGATION=n

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

The following security bugs were fixed:

• CVE-2022-36402: Fixed an integer overflow vulnerability in vmwgfx driver in that allowed a local attacker with a user account on the system to gain privilege, causing a denial of service (bsc#1203517).
• CVE-2023-2007: Fixed a flaw in the DPT I2O Controller driver that could allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel (bsc#1210448).
• CVE-2023-20588: Fixed a division-by-zero error on some AMD processors that can potentially return speculative data resulting in loss of confidentiality (bsc#1213927).
• CVE-2023-34319: Fixed buffer overrun triggered by unusual packet in xen/netback (XSA-432) (bsc#1213546).
• CVE-2023-3772: Fixed a flaw in XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer leading to a possible kernel crash and denial of service (bsc#1213666).
• CVE-2023-3812: Fixed an out-of-bounds memory access flaw in the TUN/TAP device driver functionality that could allow a local user to crash or potentially escalate their privileges on the system (bsc#1213543).
• CVE-2023-3863: Fixed a use-after-free flaw was found in nfc_llcp_find_local that allowed a local user with special privileges to impact a kernel information leak issue (bsc#1213601).
• CVE-2023-40283: Fixed use-after-free in l2cap_sock_ready_cb (bsc#1214233).
• CVE-2023-4128: Fixed a use-after-free flaw in net/sched/cls_fw.c that allowed a local attacker to perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel information leak issue (bsc#1214149).
• CVE-2023-4132: Fixed use-after-free vulnerability was found in the siano smsusb module that allowed a local user to crash the system, causing a denial of service condition (bsc#1213969).
• CVE-2023-4133: Fixed use after free bugs caused by circular dependency problem in cxgb4 (bsc#1213970).
• CVE-2023-4134: Fixed use-after-free in cyttsp4_watchdog_work() (bsc#1213971).
• CVE-2023-4194: Fixed a type confusion in net tun_chr_open() (bsc#1214019).
• CVE-2023-4385: Fixed a NULL pointer dereference flaw in dbFree that may have allowed a local attacker to crash the system due to a missing sanity check (bsc#1214348).
• CVE-2023-4387: Fixed use-after-free flaw in vmxnet3_rq_alloc_rx_buf that could allow a local attacker to crash the system due to a double-free (bsc#1214350).
• CVE-2023-4459: Fixed a NULL pointer dereference flaw in vmxnet3_rq_cleanup that may have allowed a local attacker with normal user privilege to cause a denial of service (bsc#1214451).

The following non-security bugs were fixed:

• af_key: fix send_acquire race with pfkey_register (git-fixes).
• af_packet: fix data-race in packet_setsockopt / packet_setsockopt (git-fixes).
• af_unix: fix a data race of sk->sk_receive_queue->qlen (git-fixes).
• arm64: re-enable support for contiguous hugepages (git-fixes)
• arm64: vdso: fix clock_getres() for clock_realtime (git-fixes)
• arm: spear: do not use timer namespace for timer_shutdown() function (bsc#1213970).
• bluetooth: nokia: fix value check in nokia_bluetooth_serdev_probe() (git-fixes).
• bnx2x: fix page fault following eeh recovery (bsc#1214299).
• bonding: fix a use-after-free problem when bond_sysfs_slave_add() failed (git-fixes).
• bpf, arm64: remove prefetch insn in xadd mapping (git-fixes)
• bpf, arm64: use more scalable stadd over ldxr / stxr loop in xadd (git-fixes)
• bridge: ebtables: do not crash when using dnat target in output chains (git-fixes).
• btrfs-allow-use-of-global-block-reserve-for-balance: (bsc#1214335).
• btrfs-unset-reloc-control-if-transaction-commit-fail: (bsc#1212051).
• clocksource/drivers/arm_arch_timer: do not use timer namespace for timer_shutdown() function (bsc#1213970).
• clocksource/drivers/sp804: do not use timer namespace for timer_shutdown() function…

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

The following security bugs were fixed:

• CVE-2022-36402: Fixed an integer overflow vulnerability in vmwgfx driver in that allowed a local attacker with a user account on the system to gain privilege, causing a denial of service (bsc#1203517).
• CVE-2023-2007: Fixed a flaw in the DPT I2O Controller driver that could allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel (bsc#1210448).
• CVE-2023-20588: Fixed a division-by-zero error on some AMD processors that can potentially return speculative data resulting in loss of confidentiality (bsc#1213927).
• CVE-2023-3772: Fixed a flaw in XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer leading to a possible kernel crash and denial of service (bsc#1213666).
• CVE-2023-3812: Fixed an out-of-bounds memory access flaw in the TUN/TAP device driver functionality that could allow a local user to crash or potentially escalate their privileges on the system (bsc#1213543).
• CVE-2023-3863: Fixed a use-after-free flaw was found in nfc_llcp_find_local that allowed a local user with special privileges to impact a kernel information leak issue (bsc#1213601).
• CVE-2023-4128: Fixed a use-after-free flaw in net/sched/cls_fw.c that allowed a local attacker to perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel information leak issue (bsc#1214149).
• CVE-2023-4132: Fixed use-after-free vulnerability was found in the siano smsusb module that allowed a local user to crash the system, causing a denial of service condition (bsc#1213969).
• CVE-2023-4134: Fixed use-after-free in cyttsp4_watchdog_work() (bsc#1213971).
• CVE-2023-4385: Fixed a NULL pointer dereference flaw in dbFree that may have allowed a local attacker to crash the system due to a missing sanity check (bsc#1214348).
• CVE-2023-4387: Fixed use-after-free flaw in vmxnet3_rq_alloc_rx_buf that could allow a local attacker to crash the system due to a double-free (bsc#1214350).
• CVE-2023-4459: Fixed a NULL pointer dereference flaw in vmxnet3_rq_cleanup that may have allowed a local attacker with normal user privilege to cause a denial of service (bsc#1214451).

The following non-security bugs were fixed:

• kabi/severities: Ignore newly added SRSO mitigation functions
• x86/cpu/kvm: Provide UNTRAIN_RET_VM (git-fixes).
• x86/cpu: Cleanup the untrain mess (git-fixes).
• x86/cpu: Fix __x86_return_thunk symbol type (git-fixes).
• x86/cpu: Fix up srso_safe_ret() and __x86_return_thunk() (git-fixes).
• x86/cpu: Rename original retbleed methods (git-fixes).
• x86/cpu: Rename srso_(.*)alias to srso_alias\1 (git-fixes).
• x86/retpoline,kprobes: Fix position of thunk sections with CONFIG_LTO_CLANG (git-fixes).
• x86/retpoline,kprobes: Skip optprobe check for indirect jumps with retpolines and IBT (git-fixes).
• x86/retpoline: Do not clobber RFLAGS during srso_safe_ret() (git-fixes).
• x86/speculation: Add cpu_show_gds() prototype (git-fixes).
• x86/speculation: Mark all Skylake CPUs as vulnerable to GDS (git-fixes).
• x86/srso: Correct the mitigation status when SMT is disabled (git-fixes).
• x86/srso: Disable the mitigation on unaffected configurations (git-fixes).
• x86/srso: Explain the untraining sequences a bit more (git-fixes).
• x86/srso: Fix build breakage with the LLVM linker (git-fixes).
• x86: Move gds_ucode_mitigated() declaration to header (git-fixes).

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

The following security bugs were fixed:

• CVE-2022-36402: Fixed an integer overflow vulnerability in vmwgfx driver in that allowed a local attacker with a user account on the system to gain privilege, causing a denial of service (bsc#1203517).
• CVE-2023-2007: Fixed a flaw in the DPT I2O Controller driver that could allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel (bsc#1210448).
• CVE-2023-3772: Fixed a flaw in XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer leading to a possible kernel crash and denial of service (bsc#1213666).
• CVE-2023-3812: Fixed an out-of-bounds memory access flaw in the TUN/TAP device driver functionality that could allow a local user to crash or potentially escalate their privileges on the system (bsc#1213543).
• CVE-2023-3863: Fixed a use-after-free flaw was found in nfc_llcp_find_local that allowed a local user with special privileges to impact a kernel information leak issue (bsc#1213601).
• CVE-2023-4128: Fixed a use-after-free flaw in net/sched/cls_fw.c that allowed a local attacker to perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel information leak issue (bsc#1214149).
• CVE-2023-4132: Fixed use-after-free vulnerability was found in the siano smsusb module that allowed a local user to crash the system, causing a denial of service condition (bsc#1213969).
• CVE-2023-4133: Fixed use after free bugs caused by circular dependency problem in cxgb4 (bsc#1213970).
• CVE-2023-4134: Fixed use-after-free in cyttsp4_watchdog_work() (bsc#1213971).
• CVE-2023-4194: Fixed a type confusion in net tun_chr_open() (bsc#1214019).
• CVE-2023-4385: Fixed a NULL pointer dereference flaw in dbFree that may have allowed a local attacker to crash the system due to a missing sanity check (bsc#1214348).
• CVE-2023-4387: Fixed use-after-free flaw in vmxnet3_rq_alloc_rx_buf that could allow a local attacker to crash the system due to a double-free (bsc#1214350).
• CVE-2023-4459: Fixed a NULL pointer dereference flaw in vmxnet3_rq_cleanup that may have allowed a local attacker with normal user privilege to cause a denial of service (bsc#1214451).
• CVE-2023-20588: Fixed a division-by-zero error on some AMD processors that can potentially return speculative data resulting in loss of confidentiality (bsc#1213927).
• CVE-2023-34319: Fixed buffer overrun triggered by unusual packet in xen/netback (XSA-432) (bsc#1213546).
• CVE-2023-40283: Fixed use-after-free in l2cap_sock_ready_cb (bsc#1214233).

The following non-security bugs were fixed:

• ARM: spear: Do not use timer namespace for timer_shutdown() function (bsc#1213970).
• Bluetooth: nokia: fix value check in nokia_bluetooth_serdev_probe() (git-fixes).
• Revert 'scsi: qla2xxx: Fix buffer overrun' (bsc#1214928).
• SUNRPC: always clear XPRT_SOCK_CONNECTING before xprt_clear_connecting on TCP xprt (bsc#1214453).
• af_key: Fix send_acquire race with pfkey_register (git-fixes).
• af_packet: fix data-race in packet_setsockopt / packet_setsockopt (git-fixes).
• af_unix: Fix a data race of sk->sk_receive_queue->qlen (git-fixes).
• arm64: Re-enable support for contiguous hugepages (git-fixes)
• arm64: vdso: Fix clock_getres() for CLOCK_REALTIME (git-fixes)
• bnx2x: fix page fault following EEH recovery (bsc#1214299).
• bonding: Fix a use-after-free problem when bond_sysfs_slave_add() failed (git-fixes).
• bpf, arm64: remove prefetch insn in xadd mapping (git-fixes)
• bpf, arm64: use more scalable stadd over ldxr / stxr loop in xadd (git-fixes)
• bridge: ebtables: do not crash when using dnat target in output chains (git-fixes).
• btrfs-allow-use-of-global-block-reserve-for-balance-.patch: (bsc#1214335).
• btrfs-unset-reloc-control-if-transaction-commit-fail.patch: (bsc#1212051). -…

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

The following security bugs were fixed:

• CVE-2022-36402: Fixed an integer overflow vulnerability in vmwgfx driver in that allowed a local attacker with a user account on the system to gain privilege, causing a denial of service (bsc#1203517).
• CVE-2023-2007: Fixed a flaw in the DPT I2O Controller driver that could allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel (bsc#1210448).
• CVE-2023-3772: Fixed a flaw in XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer leading to a possible kernel crash and denial of service (bsc#1213666).
• CVE-2023-3863: Fixed a use-after-free flaw was found in nfc_llcp_find_local that allowed a local user with special privileges to impact a kernel information leak issue (bsc#1213601).
• CVE-2023-4128: Fixed a use-after-free flaw in net/sched/cls_fw.c that allowed a local attacker to perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel information leak issue (bsc#1214149).
• CVE-2023-4132: Fixed use-after-free vulnerability was found in the siano smsusb module that allowed a local user to crash the system, causing a denial of service condition (bsc#1213969).
• CVE-2023-4133: Fixed use after free bugs caused by circular dependency problem in cxgb4 (bsc#1213970).
• CVE-2023-4134: Fixed use-after-free in cyttsp4_watchdog_work() (bsc#1213971).
• CVE-2023-4147: Fixed use-after-free in nf_tables_newrule (bsc#1213968).
• CVE-2023-4194: Fixed a type confusion in net tun_chr_open() (bsc#1214019).
• CVE-2023-4273: Fixed a flaw in the exFAT driver of the Linux kernel that alloawed a local privileged attacker to overflow the kernel stack (bsc#1214120).
• CVE-2023-4385: Fixed a NULL pointer dereference flaw in dbFree that may have allowed a local attacker to crash the system due to a missing sanity check (bsc#1214348).
• CVE-2023-4387: Fixed use-after-free flaw in vmxnet3_rq_alloc_rx_buf that could allow a local attacker to crash the system due to a double-free (bsc#1214350).
• CVE-2023-4459: Fixed a NULL pointer dereference flaw in vmxnet3_rq_cleanup that may have allowed a local attacker with normal user privilege to cause a denial of service (bsc#1214451).
• CVE-2023-20588: Fixed a division-by-zero error on some AMD processors that can potentially return speculative data resulting in loss of confidentiality (bsc#1213927).
• CVE-2023-21400: Fixed several memory corruptions due to improper locking in io_uring (bsc#1213272).
• CVE-2023-34319: Fixed buffer overrun triggered by unusual packet in xen/netback (XSA-432) (bsc#1213546).

The following non-security bugs were fixed:

• ARM: spear: Do not use timer namespace for timer_shutdown() function (bsc#1213970).
• Do not add and remove genksyms ifdefs
• clocksource/drivers/arm_arch_timer: Do not use timer namespace for timer_shutdown() function (bsc#1213970).
• clocksource/drivers/sp804: Do not use timer namespace for timer_shutdown() function (bsc#1213970).
• e1000: Fix fall-through warnings for Clang (jsc#PED-5738).
• e1000: Fix typos in comments (jsc#PED-5738).
• e1000: Remove unnecessary use of kmap_atomic() (jsc#PED-5738).
• e1000: drop unneeded assignment in e1000_set_itr() (jsc#PED-5738).
• e1000: switch to napi_consume_skb() (jsc#PED-5738).
• intel/e1000:fix repeated words in comments (jsc#PED-5738).
• intel: remove checker warning (jsc#PED-5738).
• kabi/severities: Ignore newly added SRSO mitigation functions
• md/raid0: Factor out helper for mapping and submitting a bio (bsc#1213916).
• md/raid0: Fix performance regression for large sequential writes (bsc#1213916).
• net: e1000: remove repeated word 'slot' for e1000_main.c (jsc#PED-5738).
• net: e1000: remove repeated words for e1000_hw.c (jsc#PED-5738).
• powerpc/rtas: block error injection when locked down (bsc#1023051). -…

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

The following security bugs were fixed:

• CVE-2023-2007: Fixed a flaw in the DPT I2O Controller driver that could allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel (bsc#1210448).
• CVE-2023-3772: Fixed a flaw in XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer leading to a possible kernel crash and denial of service (bsc#1213666).
• CVE-2023-3863: Fixed a use-after-free flaw was found in nfc_llcp_find_local that allowed a local user with special privileges to impact a kernel information leak issue (bsc#1213601).
• CVE-2023-4128: Fixed a use-after-free flaw in net/sched/cls_fw.c that allowed a local attacker to perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel information leak issue (bsc#1214149).
• CVE-2023-4132: Fixed use-after-free vulnerability was found in the siano smsusb module that allowed a local user to crash the system, causing a denial of service condition (bsc#1213969).
• CVE-2023-4134: Fixed use-after-free in cyttsp4_watchdog_work() (bsc#1213971).
• CVE-2023-4273: Fixed a flaw in the exFAT driver of the Linux kernel that alloawed a local privileged attacker to overflow the kernel stack (bsc#1214120).
• CVE-2023-4385: Fixed a NULL pointer dereference flaw in dbFree that may have allowed a local attacker to crash the system due to a missing sanity check (bsc#1214348).
• CVE-2023-4387: Fixed use-after-free flaw in vmxnet3_rq_alloc_rx_buf that could allow a local attacker to crash the system due to a double-free (bsc#1214350).
• CVE-2023-4459: Fixed a NULL pointer dereference flaw in vmxnet3_rq_cleanup that may have allowed a local attacker with normal user privilege to cause a denial of service (bsc#1214451).
• CVE-2022-36402: Fixed an integer overflow vulnerability in vmwgfx driver in that allowed a local attacker with a user account on the system to gain privilege, causing a denial of service (bsc#1203517).
• CVE-2023-20588: Fixed a division-by-zero error on some AMD processors that can potentially return speculative data resulting in loss of confidentiality (bsc#1213927).
• CVE-2023-21400: Fixed several memory corruptions due to improper locking in io_uring (bsc#1213272).

The following non-security bugs were fixed:

• kabi/severities: Ignore newly added SRSO mitigation functions
• x86/cpu/kvm: Provide UNTRAIN_RET_VM (git-fixes).
• x86/cpu: Cleanup the untrain mess (git-fixes).
• x86/cpu: Rename original retbleed methods (git-fixes).
• x86/cpu: Rename srso_(.*)alias to srso_alias\1 (git-fixes).
• x86/retpoline: Do not clobber RFLAGS during srso_safe_ret() (git-fixes).
• x86/speculation: Add cpu_show_gds() prototype (git-fixes).
• x86/speculation: Mark all Skylake CPUs as vulnerable to GDS (git-fixes).
• x86/srso: Correct the mitigation status when SMT is disabled (git-fixes).
• x86/srso: Disable the mitigation on unaffected configurations (git-fixes).
• x86/srso: Explain the untraining sequences a bit more (git-fixes).
• x86: Move gds_ucode_mitigated() declaration to header (git-fixes).

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

The following security bugs were fixed:

• CVE-2022-36402: Fixed an integer overflow vulnerability in vmwgfx driver in that allowed a local attacker with a user account on the system to gain privilege, causing a denial of service (bsc#1203517).
• CVE-2023-2007: Fixed a flaw in the DPT I2O Controller driver that could allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel (bsc#1210448).
• CVE-2023-20588: Fixed a division-by-zero error on some AMD processors that can potentially return speculative data resulting in loss of confidentiality (bsc#1213927).
• CVE-2023-34319: Fixed buffer overrun triggered by unusual packet in xen/netback (XSA-432) (bsc#1213546).
• CVE-2023-3772: Fixed a flaw in XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer leading to a possible kernel crash and denial of service (bsc#1213666).
• CVE-2023-3812: Fixed an out-of-bounds memory access flaw in the TUN/TAP device driver functionality that could allow a local user to crash or potentially escalate their privileges on the system (bsc#1213543).
• CVE-2023-3863: Fixed a use-after-free flaw was found in nfc_llcp_find_local that allowed a local user with special privileges to impact a kernel information leak issue (bsc#1213601).
• CVE-2023-40283: Fixed use-after-free in l2cap_sock_ready_cb (bsc#1214233).
• CVE-2023-4128: Fixed a use-after-free flaw in net/sched/cls_fw.c that allowed a local attacker to perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel information leak issue (bsc#1214149).
• CVE-2023-4132: Fixed use-after-free vulnerability was found in the siano smsusb module that allowed a local user to crash the system, causing a denial of service condition (bsc#1213969).
• CVE-2023-4133: Fixed use after free bugs caused by circular dependency problem in cxgb4 (bsc#1213970).
• CVE-2023-4134: Fixed use-after-free in cyttsp4_watchdog_work() (bsc#1213971).
• CVE-2023-4194: Fixed a type confusion in net tun_chr_open() (bsc#1214019).
• CVE-2023-4385: Fixed a NULL pointer dereference flaw in dbFree that may have allowed a local attacker to crash the system due to a missing sanity check (bsc#1214348).
• CVE-2023-4387: Fixed use-after-free flaw in vmxnet3_rq_alloc_rx_buf that could allow a local attacker to crash the system due to a double-free (bsc#1214350).
• CVE-2023-4459: Fixed a NULL pointer dereference flaw in vmxnet3_rq_cleanup that may have allowed a local attacker with normal user privilege to cause a denial of service (bsc#1214451).

The following non-security bugs were fixed:

• af_key: fix send_acquire race with pfkey_register (git-fixes).
• af_packet: fix data-race in packet_setsockopt / packet_setsockopt (git-fixes).
• af_unix: fix a data race of sk->sk_receive_queue->qlen (git-fixes).
• arm64: re-enable support for contiguous hugepages (git-fixes)
• arm64: vdso: fix clock_getres() for clock_realtime (git-fixes)
• arm: spear: do not use timer namespace for timer_shutdown() function (bsc#1213970).
• bluetooth: nokia: fix value check in nokia_bluetooth_serdev_probe() (git-fixes).
• bnx2x: fix page fault following eeh recovery (bsc#1214299).
• bonding: fix a use-after-free problem when bond_sysfs_slave_add() failed (git-fixes).
• bpf, arm64: remove prefetch insn in xadd mapping (git-fixes)
• bpf, arm64: use more scalable stadd over ldxr / stxr loop in xadd (git-fixes)
• bridge: ebtables: do not crash when using dnat target in output chains (git-fixes).
• btrfs-allow-use-of-global-block-reserve-for-balance (bsc#1214335).
• btrfs-unset-reloc-control-if-transaction-commit-fail (bsc#1212051).
• clocksource/drivers/arm_arch_timer: do not use timer namespace for timer_shutdown() function (bsc#1213970).
• clocksource/drivers/sp804: do not use timer namespace for timer_shutdown() function…

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

The following security bugs were fixed:

• CVE-2022-36402: Fixed an integer overflow vulnerability in vmwgfx driver in that allowed a local attacker with a user account on the system to gain privilege, causing a denial of service (bsc#1203517).
• CVE-2023-2007: Fixed a flaw in the DPT I2O Controller driver that could allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel (bsc#1210448).
• CVE-2023-3772: Fixed a flaw in XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer leading to a possible kernel crash and denial of service (bsc#1213666).
• CVE-2023-3863: Fixed a use-after-free flaw was found in nfc_llcp_find_local that allowed a local user with special privileges to impact a kernel information leak issue (bsc#1213601).
• CVE-2023-4128: Fixed a use-after-free flaw in net/sched/cls_fw.c that allowed a local attacker to perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel information leak issue (bsc#1214149).
• CVE-2023-4132: Fixed use-after-free vulnerability was found in the siano smsusb module that allowed a local user to crash the system, causing a denial of service condition (bsc#1213969).
• CVE-2023-4133: Fixed use after free bugs caused by circular dependency problem in cxgb4 (bsc#1213970).
• CVE-2023-4134: Fixed use-after-free in cyttsp4_watchdog_work() (bsc#1213971).
• CVE-2023-4147: Fixed use-after-free in nf_tables_newrule (bsc#1213968).
• CVE-2023-4194: Fixed a type confusion in net tun_chr_open() (bsc#1214019).
• CVE-2023-4273: Fixed a flaw in the exFAT driver of the Linux kernel that alloawed a local privileged attacker to overflow the kernel stack (bsc#1214120).
• CVE-2023-4385: Fixed a NULL pointer dereference flaw in dbFree that may have allowed a local attacker to crash the system due to a missing sanity check (bsc#1214348).
• CVE-2023-4387: Fixed use-after-free flaw in vmxnet3_rq_alloc_rx_buf that could allow a local attacker to crash the system due to a double-free (bsc#1214350).
• CVE-2023-4459: Fixed a NULL pointer dereference flaw in vmxnet3_rq_cleanup that may have allowed a local attacker with normal user privilege to cause a denial of service (bsc#1214451).
• CVE-2023-20588: Fixed a division-by-zero error on some AMD processors that can potentially return speculative data resulting in loss of confidentiality (bsc#1213927).
• CVE-2023-21400: Fixed several memory corruptions due to improper locking in io_uring (bsc#1213272).
• CVE-2023-34319: Fixed buffer overrun triggered by unusual packet in xen/netback (XSA-432) (bsc#1213546).

The following non-security bugs were fixed:

• ARM: spear: Do not use timer namespace for timer_shutdown() function (bsc#1213970).
• Do not add and remove genksyms ifdefs
• clocksource/drivers/arm_arch_timer: Do not use timer namespace for timer_shutdown() function (bsc#1213970).
• clocksource/drivers/sp804: Do not use timer namespace for timer_shutdown() function (bsc#1213970).
• e1000: Fix fall-through warnings for Clang (jsc#PED-5738).
• e1000: Fix typos in comments (jsc#PED-5738).
• e1000: Remove unnecessary use of kmap_atomic() (jsc#PED-5738).
• e1000: drop unneeded assignment in e1000_set_itr() (jsc#PED-5738).
• e1000: switch to napi_consume_skb() (jsc#PED-5738).
• intel/e1000:fix repeated words in comments (jsc#PED-5738).
• intel: remove checker warning (jsc#PED-5738).
• kabi/severities: Ignore newly added SRSO mitigation functions
• md/raid0: Factor out helper for mapping and submitting a bio (bsc#1213916).
• md/raid0: Fix performance regression for large sequential writes (bsc#1213916).
• net: e1000: remove repeated word 'slot' for e1000_main.c (jsc#PED-5738).
• net: e1000: remove repeated words for e1000_hw.c (jsc#PED-5738).
• powerpc/rtas: block error injection when locked down (bsc#1023051). -…

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-1077: Fixed a type confusion in pick_next_rt_entity() that could cause memory corruption (bsc#1208600).
• CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115).
• CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread() (bsc#1208995).
• CVE-2023-20588: Fixed a potential data leak that could be triggered through a side channel when division by zero occurred on some AMD processors (bsc#1213927).
• CVE-2023-4459: Fixed a NULL pointer dereference flaw in the vmxnet3 driver that may have allowed a local attacker with user privileges to cause a denial of service (bsc#1214451).
• CVE-2023-3772: Fixed a flaw in the XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer leading to denial of service (bsc#1213666).
• CVE-2023-2007: Removed the dpt_i2o driver due to security issues (bsc#1210448, jsc#PED-4579).
• CVE-2023-4385: Fixed a NULL pointer dereference flaw in dbFree that may have allowed a local attacker to crash the system due to a missing sanity check (bsc#1214348).

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)

Yang Lan discovered that the GFS2 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 GFS2 image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-3212)

It was discovered that the NET/ROM protocol implementation 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-2023-32269)

It was discovered that the NFC implementation in the Linux kernel contained a use-after-free vulnerability when performing peer-to-peer communication in certain conditions. A privileged attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2023-3863)

It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle L2CAP socket release, 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-2023-40283)

It was discovered that some network classifier implementations in the Linux kernel contained use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4128)

It was discovered that the JFS file system implementation in the Linux kernel did not properly validate memory allocations in certain situations, leading to a null pointer dereference vulnerability. An attacker could use this to construct a malicious JFS image that, when mounted, could cause a denial of service (system crash). (CVE-2023-4385)

It was discovered that the VMware VMXNET3 ethernet driver in the Linux kernel contained a use-after-free vulnerability in certain situations. A local attacker in a guest VM could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4387)

It was discovered that the VMware VMXNET3 ethernet driver in the Linux kernel did not properly handle errors in certain situations, leading to a null pointer dereference vulnerability. A local attacker in a guest VM could use this to cause a denial of service (system crash). (CVE-2023-4459)