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Vulnerabilities CVE-2024-26739

CVE-2024-26739

High
Open
TLP:CLEAR

net/sched: act_mirred: don't override retval if we already lost the skb

AI Analysis

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Description

In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: don't override retval if we already lost the skb If we're redirecting the skb, and haven't called tcf_mirred_forward(), yet, we need to tell the core to drop the skb by setting the retcode to SHOT. If we have called tcf_mirred_forward(), however, the skb is out of our hands and returning SHOT will lead to UaF. Move the retval override to the error path which actually need it.

Details

CVSS Score
7.8
EPSS Score
0.28%

20.1th percentile

CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Confidence
90%
Published
Apr 3, 2024
Last Modified
Aug 5, 2026
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