PT-2026-94737 · Linux · Linux Kernel
CVE-2026-90389
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Published
2026-09-17
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Updated
2026-09-28
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists where storing a
memalloc noio save() token in mddev->noio flags allows one task to save the token and another to restore it. During concurrent suspend sysfs writes, a task can enter PF MEMALLOC NOIO (a flag that prevents the process from triggering direct reclaim or swapping during memory allocation), return to userspace while remaining in that scope, and subsequently have its saved token restored by a different task.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Linux Kernel