PT-2024-21494 · Linux+8 · Linux Kernel+8
Published
2024-02-16
·
Updated
2026-05-26
·
CVE-2024-26739
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to the net/sched: act mirred component in the Linux kernel. When redirecting the skb and
tcf mirred forward() has not been called, the core needs to be told to drop the skb by setting the retcode to SHOT. However, if tcf mirred forward() has been called, the skb is out of control and returning SHOT will lead to a use-after-free (UaF) condition. The fix involves moving the retval override to the error path that actually needs it.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu