CVE-2021-4460
drm/amdkfd: Fix UBSAN shift-out-of-bounds warning
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
7th
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix UBSAN shift-out-of-bounds warning If get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up doing a shift operation where the number of bits shifted equals number of bits in the operand. This behaviour is undefined. Set num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the count is >= number of bits in the operand. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 1, 2025 |
| Last Updated | May 11, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new high vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
4a488a7ad71401169cecee75dc94bcce642e2c53 < 0c0356ef2498c1a250fe3846f30293f828737309 4a488a7ad71401169cecee75dc94bcce642e2c53 < 1874b0ef1426b873de94c61861e38f29a8df714c 4a488a7ad71401169cecee75dc94bcce642e2c53 < 3fdc5182700910a685d23df57d65166e8556a266 4a488a7ad71401169cecee75dc94bcce642e2c53 < 9069b1b542de8f3bbffef868aff41521b21485cf 4a488a7ad71401169cecee75dc94bcce642e2c53 < 50e2fc36e72d4ad672032ebf646cecb48656efe0
Linux / Linux
3.19
References
git.kernel.org: https://git.kernel.org/stable/c/0c0356ef2498c1a250fe3846f30293f828737309 git.kernel.org: https://git.kernel.org/stable/c/1874b0ef1426b873de94c61861e38f29a8df714c git.kernel.org: https://git.kernel.org/stable/c/3fdc5182700910a685d23df57d65166e8556a266 git.kernel.org: https://git.kernel.org/stable/c/9069b1b542de8f3bbffef868aff41521b21485cf git.kernel.org: https://git.kernel.org/stable/c/50e2fc36e72d4ad672032ebf646cecb48656efe0