SB20250226434 - NULL pointer dereference in Linux kernel ext4
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226434
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) NULL pointer dereference (CVE-ID: CVE-2022-49707)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ext4_resize_begin() function in fs/ext4/resize.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/0dc2fca8e4f9ac4a40e8424a10163369cca0cc06
- https://git.kernel.org/stable/c/33b1bba31f4c784d33d2c2517964bdccdc9204cd
- https://git.kernel.org/stable/c/7c921328ac760bba780bdace41f4cd045f7f1405
- https://git.kernel.org/stable/c/af75c481a2e45e70f62f5942c93695e95bf7bd21
- https://git.kernel.org/stable/c/b55c3cd102a6f48b90e61c44f7f3dda8c290c694
- https://git.kernel.org/stable/c/b9747263b13e5290ac4d63bec47e38f701303cad
- https://git.kernel.org/stable/c/bfd004a1d3a062aac300523d406ac1f3e5f1a82c
- https://git.kernel.org/stable/c/fba54289176702a7caac0b64738406775817f451
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.200