SB20250502146 - Use-after-free in Linux kernel ext4
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250502146
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2025-37738)
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_xattr_inode_dec_ref_all() function in fs/ext4/xattr.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/362a90cecd36e8a5c415966d0b75b04a0270e4dd
- https://git.kernel.org/stable/c/3bc6317033f365ce578eb6039445fb66162722fd
- https://git.kernel.org/stable/c/6aff941cb0f7d0c897c3698ad2e30672709135e3
- https://git.kernel.org/stable/c/76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3
- https://git.kernel.org/stable/c/836e625b03a666cf93ff5be328c8cb30336db872
- https://git.kernel.org/stable/c/c8e008b60492cf6fd31ef127aea6d02fd3d314cd
- https://git.kernel.org/stable/c/cf9291a3449b04688b81e32621e88de8f4314b54
- https://git.kernel.org/stable/c/eb59cc31b6ea076021d14b04e7faab1636b87d0e
- https://git.kernel.org/stable/c/f737418b6de31c962c7192777ee4018906975383
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.181