SB20250916236 - Improper locking in Linux kernel rcu
Published: September 16, 2025
Security Bulletin ID
SB20250916236
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) Improper locking (CVE-ID: CVE-2025-39749)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the kernel/rcu/tree_plugin.h. 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/0ad84d62217488e679ecc90e8628980dcc003de3
- https://git.kernel.org/stable/c/55e11f6776798b27cf09a7aa0d718415d4fc9cf5
- https://git.kernel.org/stable/c/74f58f382a7c8333f8d09701aefaa25913bdbe0e
- https://git.kernel.org/stable/c/90c09d57caeca94e6f3f87c49e96a91edd40cbfd
- https://git.kernel.org/stable/c/90de9c94ea72327cfa9c2c9f6113c23a513af60b
- https://git.kernel.org/stable/c/b55947b725f190396f475d5d0c59aa855a4d8895
- https://git.kernel.org/stable/c/b5de8d80b5d049f051b95d9b1ee50ae4ab656124
- https://git.kernel.org/stable/c/e35e711c78c8a4c43330c0dcb1c4d507a19c20f4
- https://git.kernel.org/stable/c/f937759c7432d6151b73e1393b6517661813d506