SB2024102256 - NULL pointer dereference in Linux kernel dsa
Published: October 22, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024102256
CSH 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 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2024-49998)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the EXPORT_SYMBOL_GPL() and dsa_switch_shutdown() functions in net/dsa/dsa.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/ab5d3420a1120950703dbdc33698b28a6ebc3d23
- https://git.kernel.org/stable/c/b4a65d479213fe84ecb14e328271251eebe69492
- https://git.kernel.org/stable/c/6c24a03a61a245fe34d47582898331fa034b6ccd
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.176
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12