SB2024102182 - Use-after-free in Linux kernel ext4
Published: October 21, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024102182
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-2024-49960)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the flush_work() function in fs/ext4/super.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/9203817ba46ebba7c865c8de2aba399537b6e891
- https://git.kernel.org/stable/c/fa78fb51d396f4f2f80f8e96a3b1516f394258be
- https://git.kernel.org/stable/c/b85569585d0154d4db1e4f9e3e6a4731d407feb0
- https://git.kernel.org/stable/c/0ce160c5bdb67081a62293028dc85758a8efb22a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.237
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.181
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.118
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.55