CVE-2024-50287: media: v4l2-tpg: prevent the risk of a division by zero
First published: Tue Nov 19 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: media: v4l2-tpg: prevent the risk of a division by zero As reported by Coverity, the logic at tpg_precalculate_line() blindly rescales the buffer even when scaled_witdh is equal to zero. If this ever happens, this will cause a division by zero. Instead, add a WARN_ON_ONCE() to trigger such cases and return without doing any precalculation.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=3.18<4.19.324 | |
| Linux Kernel | >=4.20<5.4.286 | |
| Linux Kernel | >=5.5<5.10.230 | |
| Linux Kernel | >=5.11<5.15.172 | |
| Linux Kernel | >=5.16<6.1.117 | |
| Linux Kernel | >=6.2<6.6.61 | |
| Linux Kernel | >=6.7<6.11.8 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 | |
| Linux Kernel | =6.12-rc4 | |
| Linux Kernel | =6.12-rc5 | |
| Linux Kernel | =6.12-rc6 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/e3c36d0bde309f690ed1f9cd5f7e63b3a513f94a
- https://git.kernel.org/stable/c/0bfc6e38ee2250f0503d96f1a1de441c31d88715
- https://git.kernel.org/stable/c/054931ca3cfcb8e8fa036e887d6f379942b02565
- https://git.kernel.org/stable/c/a749c15dccc58d9cbad9cd23bd8ab4b5fa96cf47
- https://git.kernel.org/stable/c/c63c30c9d9f2c8de34b16cd2b8400240533b914e
- https://git.kernel.org/stable/c/2d0f01aa602fd15a805771bdf3f4d9a9b4df7f47
- https://git.kernel.org/stable/c/0cdb42ba0b28f548c1a4e86bb8489dba0d78fc21
- https://git.kernel.org/stable/c/e6a3ea83fbe15d4818d01804e904cbb0e64e543b
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50287
- https://nvd.nist.gov/vuln/detail/CVE-2024-50287
- https://launchpad.net/bugs/cve/CVE-2024-50287
- https://security-tracker.debian.org/tracker/CVE-2024-50287
- https://ubuntu.com/security/CVE-2024-50287
- https://git.kernel.org/linus/e6a3ea83fbe15d4818d01804e904cbb0e64e543b
Frequently Asked Questions
What does CVE-2024-50287 involve?
CVE-2024-50287 addresses a division by zero vulnerability in the Linux kernel's video for Linux 2 (v4l2-tpg) related to the logic in tpg_precalculate_line().
What is the severity of CVE-2024-50287?
The severity of CVE-2024-50287 is generally considered to be moderate, as it could potentially allow for denial of service conditions.
How do I fix CVE-2024-50287?
To fix CVE-2024-50287, update to a patched version of the Linux kernel that addresses this vulnerability.
Which versions of the Linux kernel are affected by CVE-2024-50287?
CVE-2024-50287 affects multiple versions of the Linux kernel from 3.18 up to and including 6.12-rc6.
Is CVE-2024-50287 exploitable remotely?
CVE-2024-50287 is not directly exploitable remotely as it pertains to local kernel operations but could lead to local denial of service.
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