SB20250226447 - NULL pointer dereference in Linux kernel ethernet sfc driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226447
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-2022-49096)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the efx_remove_channels(), efx_realloc_channels() and efx_set_channels() functions in drivers/net/ethernet/sfc/efx_channels.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/059a47f1da93811d37533556d67e72f2261b1127
- https://git.kernel.org/stable/c/b8c46bc358d84701e7f7ffa054037db25f25da0e
- https://git.kernel.org/stable/c/dcc85e1593686e42c6749ef3d356db34759d59e8
- https://git.kernel.org/stable/c/ed7a824fda8732578d1014fad1f7fb0363705090
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.34