vulnerability
Ubuntu: (CVE-2021-47560): linux-fips vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | May 24, 2024 | Jun 26, 2025 | Aug 18, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
May 24, 2024
Added
Jun 26, 2025
Modified
Aug 18, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
mlxsw: spectrum: Protect driver from buggy firmware
When processing port up/down events generated by the device's firmware,
the driver protects itself from events reported for non-existent local
ports, but not the CPU port (local port 0), which exists, but lacks a
netdev.
This can result in a NULL pointer dereference when calling
netif_carrier_{on,off}().
Fix this by bailing early when processing an event reported for the CPU
port. Problem was only observed when running on top of a buggy emulator.
Solution
no-fix-ubuntu-package
References
- CVE-2021-47560
- https://attackerkb.com/topics/CVE-2021-47560
- CWE-476
- URL-https://git.kernel.org/linus/63b08b1f6834bbb0b4f7783bf63b80c8c8e9a047
- URL-https://git.kernel.org/stable/c/63b08b1f6834bbb0b4f7783bf63b80c8c8e9a047
- URL-https://git.kernel.org/stable/c/90d0736876c50ecde1a3275636a06b9ddb1cace9
- URL-https://git.kernel.org/stable/c/da4d70199e5d82da664a80077508d6c18f5e76df
- URL-https://www.cve.org/CVERecord?id=CVE-2021-47560
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.