PT-2024-11255 · Linux+2 · Linux Kernel+2
Kaustubh Pandey
·
Published
2021-06-09
·
Updated
2025-04-15
·
CVE-2021-47248
CVSS v2.0
5.0
Medium
| Vector | AV:L/AC:H/Au:S/C:P/I:P/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is caused by a race between
close() and udp abort() functions, which both acquire the socket lock. However, udp{v6} destroy sock() releases the lock before performing destructive actions, leading to a potential panic in udp lib lookup(). To prevent this, the SOCK DEAD flag is used to stop udp abort() from taking any action when the critical race occurs.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Race Condition
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Suse