SB2026020210 - Red Hat Enterprise Linux 8 update for kernel-rt
Published: February 2, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 10 secuirty vulnerabilities.
1) Off-by-one (CVE-ID: CVE-2024-26766)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to an off-by-one error within the _pad_sdma_tx_descs() function in drivers/infiniband/hw/hfi1/sdma.c. A local user can trigger an off-by-one error and execute arbitrary code with elevated privileges.
2) Use-after-free (CVE-ID: CVE-2025-38022)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ib_device_notify_register() and ib_register_device() functions in drivers/infiniband/core/device.c. A local user can escalate privileges on the system.
3) Use-after-free (CVE-ID: CVE-2025-38024)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the rxe_cq_from_init() function in drivers/infiniband/sw/rxe/rxe_cq.c. A local user can escalate privileges on the system.
4) Out-of-bounds read (CVE-ID: CVE-2025-38415)
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 squashfs_fill_super() function in fs/squashfs/super.c. A local user can perform a denial of service (DoS) attack.
5) Improper locking (CVE-ID: CVE-2025-38459)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the clip_mkip() function in net/atm/clip.c. A local user can perform a denial of service (DoS) attack.
6) Out-of-bounds read (CVE-ID: CVE-2025-39760)
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 usb_parse_ss_endpoint_companion() function in drivers/usb/core/config.c. A local user can perform a denial of service (DoS) attack.
7) Use-after-free (CVE-ID: CVE-2025-40258)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mptcp_reset_rtx_timer() function in net/mptcp/protocol.c. A local user can escalate privileges on the system.
8) Use-after-free (CVE-ID: CVE-2025-40271)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the pde_put(), remove_proc_entry() and remove_proc_subtree() functions in fs/proc/generic.c. A local user can escalate privileges on the system.
9) 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.
10) Integer overflow (CVE-ID: CVE-2022-50865)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer overflow within the tcp_add_backlog() function in net/ipv4/tcp_ipv4.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.