SB20240621115 - Infinite loop in Linux kernel smb client
Published: June 21, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240621115
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) Infinite loop (CVE-ID: CVE-2024-27036)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop within the cifs_partialpagewrite(), cifs_extend_writeback(), cifs_write_back_from_locked_folio(), cifs_writepages_region() and cifs_writepages() functions in fs/smb/client/file.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/e45deec35bf7f1f4f992a707b2d04a8c162f2240
- https://git.kernel.org/stable/c/65f2ced695982ccd516196d0a9447d85dbe2eed5
- https://git.kernel.org/stable/c/844b4e132f57f1333dc79feaa035075a096762e4
- https://git.kernel.org/stable/c/f3dc1bdb6b0b0693562c7c54a6c28bafa608ba3c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.23
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.2