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IP …
critical9.8

CVE-2024-53206

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix use-after-free of nreq in reqsk_timer_handler().

Impact

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix use-after-free of nreq in reqsk_timer_handler(). The cited commit replaced inet_csk_reqsk_queue_drop_and_put() with __inet_csk_reqsk_queue_drop() and reqsk_put() in reqsk_timer_handler(). Then, oreq should be passed to reqsk_put() instead of req; otherwise use-after-free of nreq could happen when reqsk is migrated but the retry attempt failed (e.g. due to timeout). Let's pass oreq to reqsk_put().

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 5.15.170 before 5.15.174
from 6.1.115 before 6.1.120
from 6.6.59 before 6.6.64
from 6.11.6 before 6.11.11
from 6.12 before 6.12.2

Weakness classification

CWE-416

References