SB20240531468 - NULL pointer dereference in Linux kernel ethernet sfc driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531468
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-2022-48648)
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_hard_start_xmit() function in drivers/net/ethernet/sfc/tx.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/b3b41d4d95d3822b2e459ecbc80d030ea6aec5e7
- https://git.kernel.org/stable/c/8547c7bfc0617e7184e4da65b9b96681fcfe9998
- https://git.kernel.org/stable/c/b3b952168ee1f220ba729fa100fd9d5aa752eb03
- https://git.kernel.org/stable/c/0a242eb2913a4aa3d6fbdb86559f27628e9466f3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.146
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.71
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0