Unrated severityNVD Advisory· Published Feb 4, 2026· Updated Feb 9, 2026
regmap: Fix race condition in hwspinlock irqsave routine
CVE-2026-23071
Description
In the Linux kernel, the following vulnerability has been resolved:
regmap: Fix race condition in hwspinlock irqsave routine
Previously, the address of the shared member '&map->spinlock_flags' was passed directly to 'hwspin_lock_timeout_irqsave'. This creates a race condition where multiple contexts contending for the lock could overwrite the shared flags variable, potentially corrupting the state for the current lock owner.
Fix this by using a local stack variable 'flags' to store the IRQ state temporarily.
Affected products
2- Linux/Linuxv5Range: 4.15
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
7- git.kernel.org/stable/c/24f31be6ad70537fd7706269d99c92cade465a09mitre
- git.kernel.org/stable/c/4aab0ca0a0f7760e33edcb4e47576064d05128f5mitre
- git.kernel.org/stable/c/4b58aac989c1e3fafb1c68a733811859df388250mitre
- git.kernel.org/stable/c/766e243ae8c8b27087a4cc605752c0d5ee2daeabmitre
- git.kernel.org/stable/c/c2d2cf710dc3ee1a69e00b4ed8de607a92a07889mitre
- git.kernel.org/stable/c/e1a7072bc4f958c9e852dc7e57e39f12b0bb44b5mitre
- git.kernel.org/stable/c/f1e2fe26a51eca95b41420af76d22c2e613efd5emitre
News mentions
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