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high7.8

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 If we're redirectin…

Impact

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.

Affected products

VendorProductAffected versions
DebianDebian Linux
Version 11.0
LinuxLinux Kernel
from 4.19 before 5.10.238
from 5.11 before 5.15.182
from 5.16 before 6.1.136
from 6.2 before 6.6.19
from 6.7 before 6.7.7
Version 6.8

Weakness classification

CWE-416

References