CVE-2026-31554
futex: Require sys_futex_requeue() to have identical flags
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: futex: Require sys_futex_requeue() to have identical flags Nicholas reported that his LLM found it was possible to create a UaF when sys_futex_requeue() is used with different flags. The initial motivation for allowing different flags was the variable sized futex, but since that hasn't been merged (yet), simply mandate the flags are identical, as is the case for the old style sys_futex() requeue operations.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 24, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown 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
0f4b5f972216782a4acb1ae00dcb55173847c2ff < 027145ace09fad4c7cbcd6c61fe9b429c63eb0e5 0f4b5f972216782a4acb1ae00dcb55173847c2ff < 18b7d09c2b794c71d4252f3ea2cf84ad12b73d6a 0f4b5f972216782a4acb1ae00dcb55173847c2ff < e2f78c7ec1655fedd945366151ba54fcb9580508 0f4b5f972216782a4acb1ae00dcb55173847c2ff < 19f94b39058681dec64a10ebeb6f23fe7fc3f77a
Linux / Linux
6.7
References
git.kernel.org: https://git.kernel.org/stable/c/027145ace09fad4c7cbcd6c61fe9b429c63eb0e5 git.kernel.org: https://git.kernel.org/stable/c/18b7d09c2b794c71d4252f3ea2cf84ad12b73d6a git.kernel.org: https://git.kernel.org/stable/c/e2f78c7ec1655fedd945366151ba54fcb9580508 git.kernel.org: https://git.kernel.org/stable/c/19f94b39058681dec64a10ebeb6f23fe7fc3f77a