SB2024110562 - Use-after-free in Linux kernel nfsd
Published: November 5, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024110562
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-2024-50121)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the nfs4_state_shutdown_net() function in fs/nfsd/nfs4state.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/f965dc0f099a54fca100acf6909abe52d0c85328
- https://git.kernel.org/stable/c/add1df5eba163a3a6ece11cb85890e2e410baaea
- https://git.kernel.org/stable/c/d5ff2fb2e7167e9483846e34148e60c0c016a1f6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.233
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.176
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.123
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.59