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416baaa9-dc9f-4396-8d5f-8c081fb06d67NVD:CVE-2021-47232HistoryMay 21, 2024 - 3:15 p.m.
CVE-2021-47232
2024-05-2115:15:12
416baaa9-dc9f-4396-8d5f-8c081fb06d67
web.nvd.nist.gov
1
linux kernel
use-after-free
vulnerability
can: j1939
skb queue
ref count
cts
cve-2021-47232
In the Linux kernel, the following vulnerability has been resolved:
can: j1939: fix Use-after-Free, hold skb ref while in use
This patch fixes a Use-after-Free found by the syzbot.
The problem is that a skb is taken from the per-session skb queue,
without incrementing the ref count. This leads to a Use-after-Free if
the skb is taken concurrently from the session queue due to a CTS.
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