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 Linux kernel | >=3.18<4.19.324 | |
| Linux Linux kernel | >=4.20<5.4.286 | |
| Linux Linux kernel | >=5.5<5.10.230 | |
| Linux Linux kernel | >=5.11<5.15.172 | |
| Linux Linux kernel | >=5.16<6.1.117 | |
| Linux Linux kernel | >=6.2<6.6.61 | |
| Linux Linux kernel | >=6.7<6.11.8 | |
| Linux Linux kernel | =6.12-rc1 | |
| Linux Linux kernel | =6.12-rc2 | |
| Linux Linux kernel | =6.12-rc3 | |
| Linux Linux kernel | =6.12-rc4 | |
| Linux Linux kernel | =6.12-rc5 | |
| Linux Linux kernel | =6.12-rc6 |
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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
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