CVE-2021-0935

In ip6_xmit of ip6_output.c, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-168607263References: Upstream kernel

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c (bnc#1194087).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bnc#1192847)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4135: Fixed zero-initialize memory inside netdevsim for new map's value in function nsim_bpf_map_alloc (bsc#1193927).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-28714: Fixed issue with xen/netback to handle rx queue stall detection (XSA-392) (bsc#1193442).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1193731).
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device (bsc#1179599).
• CVE-2019-15126: Fixed a vulnerability in Broadcom…

In ip6_xmit of ip6_output.c, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

This update for the Linux Kernel 4.12.14-197_99 fixes several issues.

The following security issues were fixed:

• CVE-2021-0935: Fixed use after free that could lead to local escalation of privilege in ip6_xmit of ip6_output.c (bsc#1192042).
• CVE-2021-3752: Fixed vulnerability in the linux kernel Bluetooth uaf module (bsc#1190432).
• CVE-2021-41864: Fixed an integer overflow with a resultant out-of-bounds write in prealloc_elems_and_freelist in kernel/bpf/stackmap.c (bsc#1191318).

This update for the Linux Kernel 4.12.14-122_91 fixes several issues.

The following security issues were fixed:

• CVE-2021-0935: Fixed use after free that could lead to local escalation of privilege in ip6_xmit of ip6_output.c (bsc#1192042).
• CVE-2021-41864: Fixed an integer overflow with a resultant out-of-bounds write in prealloc_elems_and_freelist in kernel/bpf/stackmap.c (bsc#1191318).

This update for the Linux Kernel 4.12.14-150_66 fixes several issues.

The following security issues were fixed:

• CVE-2021-0935: Fixed use after free that could lead to local escalation of privilege in ip6_xmit of ip6_output.c (bsc#1192042).
• CVE-2021-3752: Fixed vulnerability in the linux kernel Bluetooth uaf module (bsc#1190432).
• CVE-2021-41864: Fixed an integer overflow with a resultant out-of-bounds write in prealloc_elems_and_freelist in kernel/bpf/stackmap.c (bsc#1191318).

This update for the Linux Kernel 4.4.180-94_147 fixes several issues.

The following security issues were fixed:

• CVE-2021-0935: Fixed use after free that could lead to local escalation of privilege in ip6_xmit of ip6_output.c (bsc#1192042).
• CVE-2021-3752: Fixed vulnerability in the linux kernel Bluetooth uaf module (bsc#1190432).

This update for the Linux Kernel 4.12.14-122_98 fixes several issues.

The following security issues were fixed:

• CVE-2021-0941: In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192045).
• CVE-2021-20322: Make the ipv4 and ipv6 ICMP exception caches less predictive to avoid information leaks about UDP ports in use. (bsc#1191790)
• CVE-2021-0935: In ip6_xmit of ip6_output.c, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. (bsc#1192032)

This update for the Linux Kernel 4.12.14-197_102 fixes one issue.

The following security issue was fixed:

• CVE-2021-0935: In ip6_xmit of ip6_output.c, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. (bsc#1192032)

This update for the Linux Kernel 4.4.180-94_150 fixes several issues.

The following security issues were fixed:

• CVE-2021-0935: In ip6_xmit of ip6_output.c, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. (bsc#1192032)
• CVE-2021-28688: The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. (bsc#1183646)

The SUSE Linux Enterprise 12 SP5 kernel was updated.

The following security bugs were fixed:

• CVE-2019-15126: Fixed a vulnerability in Broadcom and Cypress Wi-Fi chips, used in RPi family of devices aka 'Kr00k'. (bsc#1167162)
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-0935: Fixed out of bounds write due to a use after free which could lead to local escalation of privilege with System execution privileges needed in ip6_xmit. (bsc#1192032)
• CVE-2018-25020: Fixed an issue in the BPF subsystem in the Linux kernel mishandled situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. (bsc#1193575)
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc. (bsc#1193731)
• CVE-2021-45485: Fixed an information leak because of certain use of a hash table which use IPv6 source addresses. (bsc#1194094)
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c. (bsc#1194087)
• CVE-2021-28715: Fixed an issue where a guest could force Linux netback driver to hog large amounts of kernel memory by do not queueing unlimited number of packages. (bsc#1193442)
• CVE-2021-28714: Fixed an issue where a guest could force Linux netback driver to hog large amounts of kernel memory by fixing rx queue stall detection. (bsc#1193442)
• CVE-2021-28713: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening hvc_xen against event channel storms. (bsc#1193440)
• CVE-2021-28712: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening netfront against event channel storms. (bsc#1193440)
• CVE-2021-28711: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening blkfront against event channel storms. (bsc#1193440)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bsc#1192847)
• CVE-2021-4002: Added a missing TLB flush that could lead to leak or corruption of data in hugetlbfs. (bsc#1192946)
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device. (bsc#1179599)

The following non-security bugs were fixed:

• blk-mq: do not deactivate hctx if managed irq isn't used (bsc#1185762).
• cifs: Add new mount parameter 'acdirmax' to allow caching directory metadata (bsc#1190317).
• cifs: Add new parameter 'acregmax' for distinct file and directory metadata timeout (bsc#1190317).
• cifs: convert list_for_each to entry variant (jsc#SLE-20656).
• cifs: convert revalidate of directories to using directory metadata cache timeout (bsc#1190317).
• cifs: Do not leak EDEADLK to dgetents64 for STATUS_USER_SESSION_DELETED (bsc#1190317).
• cifs: fiemap: do not return EINVAL if get nothing (bsc#1190317).
• cifs: Fix a potencially linear read overflow (git-fixes).
• cifs: fix a sign extension bug (git-fixes).
• cifs: fix incorrect check for null pointer in header_assemble (bsc#1190317).
• cifs: fix memory leak of smb3_fs_context_dup::server_hostname (bsc#1190317).
• cifs: fix missed refcounting of ipc tcon (git-fixes).
• cifs: fix potential use-after-free bugs (jsc#SLE-20656).
• cifs: fix print of hdr_flags in dfscache_proc_show() (jsc#SLE-20656).
• cifs: fix wrong release in sess_alloc_buffer() failed path (bsc#1190317).
• cifs: for compound requests, use open handle if possible (bsc#1190317).
• cifs: introduce new helper for cifs_reconnect() (jsc#SLE-20656).
• cifs: move to generic async completion (bsc#1190317).
• cifs: nosharesock…

The SUSE Linux Enterprise 12 SP5 kernel was updated.

The following security bugs were fixed:

• CVE-2021-4083: Fixed a race condition with Unix domain socket garbage collection that can lead to read memory after free. (bsc#1193727)
• CVE-2021-4149: Fixed an improper lock operation in btrfs which allows users to crash the kernel or deadlock the system. (bsc#1194001)
• CVE-2021-45485: Fixed an information leak because of certain use of a hash table which use IPv6 source addresses. (bsc#1194094)
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c. (bsc#1194087)
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc. (bsc#1193731)
• CVE-2021-28715: Fixed an issue where a guest could force Linux netback driver to hog large amounts of kernel memory by do not queueing unlimited number of packages. (bsc#1193442)
• CVE-2021-28714: Fixed an issue where a guest could force Linux netback driver to hog large amounts of kernel memory by fixing rx queue stall detection. (bsc#1193442)
• CVE-2021-28713: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening hvc_xen against event channel storms. (bsc#1193440)
• CVE-2021-28712: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening netfront against event channel storms. (bsc#1193440)
• CVE-2021-28711: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening blkfront against event channel storms. (bsc#1193440)
• CVE-2018-25020: Fixed an issue in the BPF subsystem in the Linux kernel mishandled situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. (bsc#1193575)
• CVE-2021-4002: Added a missing TLB flush that could lead to leak or corruption of data in hugetlbfs. (bsc#1192946)
• CVE-2021-0935: Fixed out of bounds write due to a use after free which could lead to local escalation of privilege with System execution privileges needed in ip6_xmit. (bsc#1192032)
• CVE-2019-15126: Fixed a vulnerability in Broadcom and Cypress Wi-Fi chips, used in RPi family of devices aka 'Kr00k'. (bsc#1167162)
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bsc#1192847)
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device. (bsc#1179599)

The following non-security bugs were fixed:

• blk-mq: do not deactivate hctx if managed irq isn't used (bsc#1185762).
• bpf: Add kconfig knob for disabling unpriv bpf by default (jsc#SLE-22913)
• bpf: Disallow unprivileged bpf by default (jsc#SLE-22913).
• cifs: Add new mount parameter 'acdirmax' to allow caching directory metadata (bsc#1190317).
• cifs: Add new parameter 'acregmax' for distinct file and directory metadata timeout (bsc#1190317).
• cifs: convert list_for_each to entry variant (jsc#SLE-20656).
• cifs: convert revalidate of directories to using directory metadata cache timeout (bsc#1190317).
• cifs: Do not leak EDEADLK to dgetents64 for STATUS_USER_SESSION_DELETED (bsc#1190317).
• cifs: fiemap: do not return EINVAL if get nothing (bsc#1190317).
• cifs: Fix a potencially linear read overflow (git-fixes).
• cifs: fix a sign extension bug (git-fixes).
• cifs: fix incorrect check for null pointer in header_assemble (bsc#1190317).
• cifs: fix memory leak of smb3_fs_context_dup::server_hostname (bsc#1190317).
• cifs: fix missed refcounting of ipc tcon (git-fixes).
• cifs: fix…

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

The following security bugs were fixed:

• CVE-2019-15126: Fixed a vulnerability in Broadcom and Cypress Wi-Fi chips, used in RPi family of devices aka 'Kr00k'. (bsc#1167162)
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device. (bsc#1179599)
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc. (bsc#1193731)
• CVE-2021-0935: Fixed out of bounds write due to a use after free which could lead to local escalation of privilege with System execution privileges needed in ip6_xmit. (bsc#1192032)
• CVE-2021-4002: Added a missing TLB flush that could lead to leak or corruption of data in hugetlbfs. (bsc#1192946)
• CVE-2021-28711: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening blkfront against event channel storms. (bsc#1193440)
• CVE-2021-28712: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening netfront against event channel storms. (bsc#1193440)
• CVE-2021-28713: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening hvc_xen against event channel storms. (bsc#1193440)
• CVE-2021-28714: Fixed an issue where a guest could force Linux netback driver to hog large amounts of kernel memory by fixing rx queue stall detection. (bsc#1193442)
• CVE-2021-28715: Fixed an issue where a guest could force Linux netback driver to hog large amounts of kernel memory by do not queueing unlimited number of packages. (bsc#1193442)
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bsc#1192847)
• CVE-2021-45485: Fixed an information leak because of certain use of a hash table which use IPv6 source addresses. (bsc#1194094)
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c. (bsc#1194087)

The following non-security bugs were fixed:

• blk-mq: do not deactivate hctx if managed irq isn't used (bsc#1185762).
• cifs: fix missed refcounting of ipc tcon (git-fixes).
• cifs: nosharesock should be set on new server (git-fixes).
• config: INPUT_EVBUG=n (bsc#1192974). Debug driver unsuitable for production, only enabled on ppc64.
• constraints: Build aarch64 on recent ARMv8.1 builders. Request asimdrdm feature which is available only on recent ARMv8.1 CPUs. This should prevent scheduling the kernel on an older slower builder.
• edac/amd64: Handle three rank interleaving mode (bsc#1114648).
• elfcore: correct reference to CONFIG_UML (git-fixes).
• fuse: release pipe buf after last use (bsc#1193318).
• genirq: Move initial affinity setup to irq_startup() (bsc#1193231).
• genirq: Provide IRQCHIP_AFFINITY_PRE_STARTUP (bsc#1193231).
• genirq: Remove mask argument from setup_affinity() (bsc#1193231).
• genirq: Rename setup_affinity() to irq_setup_affinity() (bsc#1193231).
• genirq: Split out irq_startup() code (bsc#1193231).
• kernel-*-subpackage: Add dependency on kernel scriptlets (bsc#1192740).
• kernel-binary.spec.in Stop templating the scriptlets for subpackages (bsc#1190358). The script part for base package case is completely separate from the part for subpackages. Remove the part for subpackages from the base package script and use the KMP scripts for subpackages instead.
• kernel-binary.spec.in: add zstd to BuildRequires if used
• kernel-binary.spec.in: make sure zstd is supported by kmod if used
• kernel-binary.spec: Check for no kernel signing certificates. Also remove…

This update for the Linux Kernel 4.12.14-150_78 fixes several issues.

The following security issues were fixed:

• CVE-2018-25020: Fixed an issue in the BPF subsystem in the Linux kernel mishandled situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. (bsc#1193575)
• CVE-2021-0935: Fixed out of bounds write due to a use after free which could lead to local escalation of privilege with System execution privileges needed in ip6_xmit. (bsc#1192032)

The SUSE Linux Enterprise 12 SP3 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-25020: Fixed an overflow in the BPF subsystem due to a mishandling of a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions. This affects kernel/bpf/core.c and net/core/filter.c (bnc#1193575).
• CVE-2019-0136: Fixed insufficient access control in the Intel(R) PROSet/Wireless WiFi Software driver that may have allowed an unauthenticated user to potentially enable denial of service via adjacent access (bnc#1193157).
• CVE-2020-35519: Fixed out-of-bounds memory access in x25_bind in net/x25/af_x25.c. A bounds check failure allowed a local attacker with a user account on the system to gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information (bnc#1183696).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-33098: Fixed improper input validation in the Intel(R) Ethernet ixgbe driver that may have allowed an authenticated user to potentially cause denial of service via local access (bnc#1192877).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4155: Fixed XFS map issue when unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate (bsc#1194272).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-43976: Fixed insufficient access control in drivers/net/wireless/marvell/mwifiex/usb.c that allowed an attacker who connect a crafted USB device to cause denial of service (bnc#1192847).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-45485: Fixed information leak in the IPv6 implementation in net/ipv6/output_core.c (bnc#1194094).
• CVE-2021-45486: Fixed information leak inside the IPv4 implementation caused by very small hash table (bnc#1194087).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).

The following non-security bugs were fixed:

-…

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c (bnc#1194087).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bnc#1192847)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4135: Fixed zero-initialize memory inside netdevsim for new map's value in function nsim_bpf_map_alloc (bsc#1193927).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-28714: Fixed issue with xen/netback to handle rx queue stall detection (XSA-392) (bsc#1193442).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1193731).
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device (bsc#1179599).
• CVE-2019-15126: Fixed a vulnerability in Broadcom…

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c (bnc#1194087).
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1193731).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28714: Fixed issue with xen/netback to handle rx queue stall detection (XSA-392) (bsc#1193442).
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2018-25020: Fixed an overflow in the BPF subsystem due to a mishandling of a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions. This affects kernel/bpf/core.c and net/core/filter.c (bnc#1193575).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device (bsc#1179599).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-43975: hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allowed an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value (bnc#1192845).
• CVE-2021-33098: Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may have allowed an authenticated…

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985).
• CVE-2021-45486: Fixed information leak inside the IPv4 implementation caused by very small hash table (bnc#1194087).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bnc#1192847)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4002: Fixed a missing TLB flush that could lead to leak or corruption of data in hugetlbfs. (bsc#1192946)
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-28714: Fixed issue with xen/netback to add rx queue stall detection (XSA-392) (bsc#1193442).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-0920: Fixed use after free bug due to a race condition in unix_scm_to_skb of af_unix.c. This could have led to local escalation of privilege with System execution privileges needed (bnc#1193731).
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could…

The SUSE Linux Enterprise 12 SP2 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-25020: Fixed an overflow in the BPF subsystem due to a mishandling of a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions. This affects kernel/bpf/core.c and net/core/filter.c (bnc#1193575).
• CVE-2019-0136: Fixed insufficient access control in the Intel(R) PROSet/Wireless WiFi Software driver that may have allowed an unauthenticated user to potentially enable denial of service via adjacent access (bnc#1193157).
• CVE-2020-35519: Fixed out-of-bounds memory access in x25_bind in net/x25/af_x25.c. A bounds check failure allowed a local attacker with a user account on the system to gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information (bnc#1183696).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-33098: Fixed improper input validation in the Intel(R) Ethernet ixgbe driver that may have allowed an authenticated user to potentially cause denial of service via local access (bnc#1192877).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4155: Fixed XFS map issue when unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate (bsc#1194272).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-43976: Fixed insufficient access control in drivers/net/wireless/marvell/mwifiex/usb.c that allowed an attacker who connect a crafted USB device to cause denial of service (bnc#1192847).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-45485: Fixed information leak in the IPv6 implementation in net/ipv6/output_core.c (bnc#1194094).
• CVE-2021-45486: Fixed information leak inside the IPv4 implementation caused by very small hash table (bnc#1194087).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).

The following non-security bugs were fixed:

-…

It was discovered that the VFIO PCI driver in the Linux kernel did not properly handle attempts to access disabled memory spaces. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12888)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly verify certain fragmented frames. A physically proximate attacker could possibly use this issue to inject or decrypt packets. (CVE-2020-26141)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation accepted plaintext fragments in certain situations. A physically proximate attacker could use this issue to inject packets. (CVE-2020-26145)

It was discovered that a race condition existed in the Atheros Ath9k WiFi driver in the Linux kernel. An attacker could possibly use this to expose sensitive information (WiFi network traffic). (CVE-2020-3702)

It was discovered a race condition existed in the Unix domain socket implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-0920)

It was discovered that the IPv6 implementation in the Linux kernel contained 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-2021-0935)

Zygo Blaxell discovered that the btrfs file system implementation in the Linux kernel contained a race condition during certain cloning operations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2021-28964)

Dan Carpenter discovered that the block device manager (dm) implementation in the Linux kernel contained a buffer overflow in the ioctl for listing devices. A privileged local attacker could use this to cause a denial of service (system crash). (CVE-2021-31916)

It was discovered that the Option USB High Speed Mobile device driver in the Linux kernel did not properly handle error conditions. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-37159)

It was discovered that the network packet filtering implementation in the Linux kernel did not properly initialize information in certain circumstances. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-39636)

Jann Horn discovered a race condition in the Unix domain socket implementation in the Linux kernel that could result in a read-after-free. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-4083)

Luo Likang discovered that the FireDTV Firewire driver in the Linux kernel did not properly perform bounds checking in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-42739)

Brendan Dolan-Gavitt discovered that the Marvell WiFi-Ex USB device driver in the Linux kernel did not properly handle some error conditions. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2021-43976)

Amit Klein discovered that the IPv4 implementation in the Linux kernel could disclose internal state in some situations. An attacker could possibly use this to expose sensitive information. (CVE-2021-45486)