Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: kyro: Validate overlay viewport coordinates The overlay viewport end coordinates are computed from the viewport origin and dimensions using 32-bit unsigned arithmetic. Large input values can cause these calculations to wrap around before the resulting coordinates are passed to SetOverlayViewPort(). SetOverlayViewPort() packs the viewport coordinates into 16-bit register fields. The X coordinates are additionally adjusted by +2 and +1 before being written. Validate the coordinate calculations for 32-bit wraparound and ensure that the adjusted coordinates fit within their 16-bit register fields before calling SetOverlayViewPort(). Found by Linux Verification Center (linuxtesting.org) with SVACE.
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 < d8c1a9579cbd8f4ac5cbd5a10f1afb5ee64adf30affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 2ac6e30a552e6f9932c21c865a5c69f40c8aef64affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 413d763439ba68e5d547538e6b6c7de97d5818a5affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < e8d4e4cf388daeb49704f3de10b203034f28eb90affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < a6decd4e72fc5846d3b268bd085a2089213fd5eeaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 33e54e3e0b2ca959304e62c3d84f0ad49bbe1afeaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 7bf36dc23bcf3496dec274a46ae0aaff4961ea03affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 7b5c7bc55e13e7f5ac7b1eaf5c6d690389ea5ee3affected
Linux Linux
Default version status: affected
2.6.12affected0 to < 2.6.12unaffected5.10.270 to ≤ 5.10.*unaffected5.15.221 to ≤ 5.15.*unaffected6.1.188 to ≤ 6.1.*unaffected6.6.157 to ≤ 6.6.*unaffected6.12.110 to ≤ 6.12.*unaffected6.18.52 to ≤ 6.18.*unaffected7.2.6 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/d8c1a9579cbd8f4ac5cbd5a10f1afb5ee64adf30 ↗
- https://git.kernel.org/stable/c/2ac6e30a552e6f9932c21c865a5c69f40c8aef64 ↗
- https://git.kernel.org/stable/c/413d763439ba68e5d547538e6b6c7de97d5818a5 ↗
- https://git.kernel.org/stable/c/e8d4e4cf388daeb49704f3de10b203034f28eb90 ↗
- https://git.kernel.org/stable/c/a6decd4e72fc5846d3b268bd085a2089213fd5ee ↗
- https://git.kernel.org/stable/c/33e54e3e0b2ca959304e62c3d84f0ad49bbe1afe ↗
- https://git.kernel.org/stable/c/7bf36dc23bcf3496dec274a46ae0aaff4961ea03 ↗
- https://git.kernel.org/stable/c/7b5c7bc55e13e7f5ac7b1eaf5c6d690389ea5ee3 ↗