SB2025071113 - NULL pointer dereference in Linux kernel jbd2
Published: July 11, 2025
Security Bulletin ID
SB2025071113
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-2025-38337)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the jbd2_journal_dirty_metadata() function in fs/jbd2/transaction.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/23361b479f2700c00960d3ae9cdc8ededa762d47
- https://git.kernel.org/stable/c/2e7c64d7a92c031d016f11c8e8cb05131ab7b75a
- https://git.kernel.org/stable/c/43d5e3bb5f1dcd91e30238ea0b59a5f77063f84e
- https://git.kernel.org/stable/c/5c1a34ff5b0bfdfd2f9343aa9b08d25df618bac5
- https://git.kernel.org/stable/c/a377996d714afb8d4d5f4906336f78510039da29
- https://git.kernel.org/stable/c/af98b0157adf6504fade79b3e6cb260c4ff68e37
- https://git.kernel.org/stable/c/ec669e5bf409f16e464bfad75f0ba039a45de29a
- https://git.kernel.org/stable/c/f78b38af3540b4875147b7b884ee11a27b3dbf4c