SB2026021257 - Red Hat Enterprise Linux 8 update for kernel
Published: February 12, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 10 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2022-50341)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the fill_transform_hdr() and crypt_message() functions in fs/cifs/smb2ops.c. A local user can escalate privileges on the system.
2) Buffer overflow (CVE-ID: CVE-2023-53539)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the save_state() and rxe_requester() functions in drivers/infiniband/sw/rxe/rxe_req.c. A local user can perform a denial of service (DoS) attack.
3) Improper locking (CVE-ID: CVE-2023-53581)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the remove_unready_flow() and mlx5e_tc_del_fdb_flow() functions in drivers/net/ethernet/mellanox/mlx5/core/en_tc.c. A local user can perform a denial of service (DoS) attack.
4) Out-of-bounds read (CVE-ID: CVE-2025-40154)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the log_quirks() function in sound/soc/intel/boards/bytcr_rt5640.c. A local user can perform a denial of service (DoS) attack.
5) Out-of-bounds read (CVE-ID: CVE-2025-40304)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the bit_putcs() function in drivers/video/fbdev/core/bitblit.c. A local user can perform a denial of service (DoS) attack.
6) Out-of-bounds read (CVE-ID: CVE-2025-40322)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the bit_putcs_aligned() and bit_putcs_unaligned() functions in drivers/video/fbdev/core/bitblit.c. A local user can perform a denial of service (DoS) attack.
7) Use-after-free (CVE-ID: CVE-2022-50673)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ext4_truncate() function in fs/ext4/inode.c. A local user can escalate privileges on the system.
8) NULL pointer dereference (CVE-ID: CVE-2023-53833)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the intel_prepare_plane_fb() function in drivers/gpu/drm/i915/display/intel_atomic_plane.c. A local user can perform a denial of service (DoS) attack.
9) Out-of-bounds read (CVE-ID: CVE-2025-68301)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the aq_ring_rx_clean() function in drivers/net/ethernet/aquantia/atlantic/aq_ring.c. A local user can perform a denial of service (DoS) attack.
10) Buffer overflow (CVE-ID: CVE-2025-68349)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the pnfs_mark_layout_stateid_invalid() function in fs/nfs/pnfs.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.