SB2026010715 - Red Hat Enterprise Linux 9 update for kernel
Published: January 7, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) NULL pointer dereference (CVE-ID: CVE-2023-52513)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the siw_accept_newconn(), siw_cm_work_handler() and siw_cm_llp_data_ready() functions in drivers/infiniband/sw/siw/siw_cm.c. A local user can perform a denial of service (DoS) attack.
2) Use-after-free (CVE-ID: CVE-2024-35868)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the cifs_stats_proc_write() function in fs/smb/client/cifs_debug.c. A remote non-authenticated attacker can perform a denial of service (DoS) attack.
3) Resource management error (CVE-ID: CVE-2025-39925)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the j1939_sk_netdev_event_netdown() function in net/can/j1939/socket.c. A local user can perform a denial of service (DoS) attack.
4) Input validation error (CVE-ID: CVE-2025-39971)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the i40e_vc_config_queues_msg() function in drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.