Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: savage: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. Although pixclock is checked in savagefb_decode_var(), but it is not checked properly in savagefb_probe(). Fix this by checking whether pixclock is zero in the function savagefb_check_var() before info->var.pixclock is used as the divisor. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 224453de8505aede1890f007be973925a3edf6a1affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 84dce0f6a4cc5b7bfd7242ef9290db8ac1dd77ffaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 512ee6d6041e007ef5bf200c6e388e172a2c5b24affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 8c54acf33e5adaad6374bf3ec1e3aff0591cc8e1affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 070398d32c5f3ab0e890374904ad94551c76aec4affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < bc3c2e58d73b28b9a8789fca84778ee165a72d13affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < a9ca4e80d23474f90841251f4ac0d941fa337a01affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 04e5eac8f3ab2ff52fa191c187a46d4fdbc1e288affected
Linux Linux
Default version status: affected
2.6.12affected0 to < 2.6.12unaffected4.19.308 to ≤ 4.19.*unaffected5.4.270 to ≤ 5.4.*unaffected5.10.211 to ≤ 5.10.*unaffected5.15.150 to ≤ 5.15.*unaffected6.1.80 to ≤ 6.1.*unaffected6.6.19 to ≤ 6.6.*unaffected6.7.7 to ≤ 6.7.*unaffected6.8 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/224453de8505aede1890f007be973925a3edf6a1 ↗
- https://git.kernel.org/stable/c/84dce0f6a4cc5b7bfd7242ef9290db8ac1dd77ff ↗
- https://git.kernel.org/stable/c/512ee6d6041e007ef5bf200c6e388e172a2c5b24 ↗
- https://git.kernel.org/stable/c/8c54acf33e5adaad6374bf3ec1e3aff0591cc8e1 ↗
- https://git.kernel.org/stable/c/070398d32c5f3ab0e890374904ad94551c76aec4 ↗
- https://git.kernel.org/stable/c/bc3c2e58d73b28b9a8789fca84778ee165a72d13 ↗
- https://git.kernel.org/stable/c/a9ca4e80d23474f90841251f4ac0d941fa337a01 ↗
- https://git.kernel.org/stable/c/04e5eac8f3ab2ff52fa191c187a46d4fdbc1e288 ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html ↗