CVE-2021-46932

low-risk
Published 2024-02-27

In the Linux kernel, the following vulnerability has been resolved: Input: appletouch - initialize work before device registration Syzbot has reported warning in __flush_work(). This warning is caused by work->func == NULL, which means missing work initialization. This may happen, since input_dev->close() calls cancel_work_sync(&dev->work), but dev->work initalization happens _after_ input_register_device() call. So this patch moves dev->work initialization before registering input device

Do I need to act?

-
0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (16)

Patch https://git.kernel.org/stable/c/292d2ac61fb0d9276a0f7b7ce4f50426f2a1c99f
Patch https://git.kernel.org/stable/c/975774ea7528b489930b76a77ffc4d5379b95ff2
Patch https://git.kernel.org/stable/c/9f329d0d6c91142cf0ad08d23c72dd195db2633c
Patch https://git.kernel.org/stable/c/9f3ccdc3f6ef10084ceb3a47df0961bec6196fd0
Patch https://git.kernel.org/stable/c/a02e1404e27855089d2b0a0acc4652c2ce65fe46
Patch https://git.kernel.org/stable/c/d1962f263a176f493400b8f91bfbf2bfedce951e
Patch https://git.kernel.org/stable/c/d2cb2bf39a6d17ef4bdc0e59c1a35cf5751ad8f4
Patch https://git.kernel.org/stable/c/e79ff8c68acb1eddf709d3ac84716868f2a91012
Patch https://git.kernel.org/stable/c/292d2ac61fb0d9276a0f7b7ce4f50426f2a1c99f
Patch https://git.kernel.org/stable/c/975774ea7528b489930b76a77ffc4d5379b95ff2
Patch https://git.kernel.org/stable/c/9f329d0d6c91142cf0ad08d23c72dd195db2633c
Patch https://git.kernel.org/stable/c/9f3ccdc3f6ef10084ceb3a47df0961bec6196fd0
Patch https://git.kernel.org/stable/c/a02e1404e27855089d2b0a0acc4652c2ce65fe46
Patch https://git.kernel.org/stable/c/d1962f263a176f493400b8f91bfbf2bfedce951e
Patch https://git.kernel.org/stable/c/d2cb2bf39a6d17ef4bdc0e59c1a35cf5751ad8f4
Patch https://git.kernel.org/stable/c/e79ff8c68acb1eddf709d3ac84716868f2a91012
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal