SB20250226323 - Out-of-bounds read in Linux kernel dlm
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226323
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) Out-of-bounds read (CVE-ID: CVE-2022-49407)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the dlm_posix_lock(), dlm_plock_callback() and dev_write() functions in fs/dlm/plock.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/2c55155cc365861044d9e6e80e342693e8805e33
- https://git.kernel.org/stable/c/42252d0d2aa9b94d168241710a761588b3959019
- https://git.kernel.org/stable/c/49cd9eb7b9a7b88124b31e31f8e539acaf1b3a6d
- https://git.kernel.org/stable/c/56aa8d1fbd02357f3bf81bdfba1cde87ce8402fc
- https://git.kernel.org/stable/c/5a1765adf9855cf0f6d3f7e0eb4b78ca66f70dee
- https://git.kernel.org/stable/c/72f2f68970f9bdc252d59e119b385a6441b0b155
- https://git.kernel.org/stable/c/899bc4429174861122f0c236588700a4710c1fec
- https://git.kernel.org/stable/c/acdad5bc9827922ec2f2e84fd198718aa8e8ab92
- https://git.kernel.org/stable/c/e421872fa17542cf33747071fb141b0130ce9ef7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3