CVE WatchAug 4, 2026

CVE-2024-26739

In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: don't override retval if we already lost the skb

CVSS

7.8

High

EPSS

0.3%

p20

KEV

—

Exploit Today

0-100

Published: Apr 3, 2024 · Last modified: Aug 4, 2026 · CWE-416

EPSS · 30d

0.3%EPSS · 30 days0.3%

2026-08-072026-09-04

Technical 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.

Official references

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