SB2025120884 - NULL pointer dereference in Linux kernel jfs
Published: December 8, 2025 Updated: December 12, 2025
Security Bulletin ID
SB2025120884
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2023-53766)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the txBegin() function in fs/jfs/jfs_txnmgr.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2a8807f9f511c64de0c7cc9900a1683e3d72a3e5
- https://git.kernel.org/stable/c/2febd5f81e4bfba61d9f374dcca628aff374cc56
- https://git.kernel.org/stable/c/5c094ca994824e038b6a97835ded4e5d1d808504
- https://git.kernel.org/stable/c/95e2b352c03b0a86c5717ba1d24ea20969abcacc
- https://git.kernel.org/stable/c/97c1f26e4d4af55e8584e4646dd5c5fa7baf62c7
- https://git.kernel.org/stable/c/a88efca805bea93cea9187dfd00835aa7093bf1b
- https://git.kernel.org/stable/c/aa7cdf487ab3fa47284daaccc3d7d5de01c6a84c
- https://git.kernel.org/stable/c/b0ed8ed0428ee96092da6fefa5cfacbe4abed701
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.7