CVE-2024-27072: media: usbtv: Remove useless locks in usbtv_video_free()
First published: Wed May 01 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: media: usbtv: Remove useless locks in usbtv_video_free() Remove locks calls in usbtv_video_free() because are useless and may led to a deadlock as reported here: https://syzkaller.appspot.com/x/bisect.txt?x=166dc872180000 Also remove usbtv_stop() call since it will be called when unregistering the device. Before 'c838530d230b' this issue would only be noticed if you disconnect while streaming and now it is noticeable even when disconnecting while not streaming. [hverkuil: fix minor spelling mistake in log message]
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.119-1 6.12.11-1 6.12.12-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/3e7d82ebb86e94643bdb30b0b5b077ed27dce1c2
- https://git.kernel.org/stable/c/65e6a2773d655172143cc0b927cdc89549842895
- https://launchpad.net/bugs/cve/CVE-2024-27072
- https://git.kernel.org/stable/c/4ec4641df57cbdfdc51bb4959afcdbcf5003ddb9
- https://git.kernel.org/stable/c/bdd82c47b22a8befd617b723098b2a41b77373c7
- https://git.kernel.org/stable/c/d5ed208d04acf06781d63d30f9fa991e8d609ebd
- https://git.kernel.org/stable/c/dea46e246ef0f98d89d59a4229157cd9ffb636bf
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27072
- https://nvd.nist.gov/vuln/detail/CVE-2024-27072
- https://security-tracker.debian.org/tracker/CVE-2024-27072
- https://ubuntu.com/security/CVE-2024-27072
- https://git.kernel.org/linus/65e6a2773d655172143cc0b927cdc89549842895
Frequently Asked Questions
What is the severity of CVE-2024-27072?
CVE-2024-27072 is classified as a low severity vulnerability due to its limited impact.
How do I fix CVE-2024-27072?
To fix CVE-2024-27072, upgrade your Linux kernel to version 6.1.123-1 or later.
Which Linux kernel versions are affected by CVE-2024-27072?
CVE-2024-27072 affects Linux kernel versions prior to 5.10.226-1.
What components of the Linux kernel are impacted by CVE-2024-27072?
CVE-2024-27072 impacts the media subsystem, specifically the usbtv module.
What issues does CVE-2024-27072 address in the Linux kernel?
CVE-2024-27072 addresses unnecessary locking mechanisms in the usbtv_video_free function that could lead to deadlocks.
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