PT-2026-30127 · Linux · Linux
Published
2026-04-03
·
Updated
2026-04-03
·
CVE-2026-23432
None
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In the Linux kernel, the following vulnerability has been resolved:
mshv: Fix use-after-free in mshv map user memory error path
In the error path of mshv map user memory(), calling vfree() directly on
the region leaves the MMU notifier registered. When userspace later unmaps
the memory, the notifier fires and accesses the freed region, causing a
use-after-free and potential kernel panic.
Replace vfree() with mshv partition put() to properly unregister
the MMU notifier before freeing the region.
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Related Identifiers
Affected Products
Linux