SB20240531307 - NULL pointer dereference in Linux kernel mellanox mlxsw driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531307
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-2021-47560)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mlxsw_sp_pude_event_func() function in drivers/net/ethernet/mellanox/mlxsw/spectrum.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/90d0736876c50ecde1a3275636a06b9ddb1cace9
- https://git.kernel.org/stable/c/da4d70199e5d82da664a80077508d6c18f5e76df
- https://git.kernel.org/stable/c/63b08b1f6834bbb0b4f7783bf63b80c8c8e9a047
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.83
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16