CVE-2026-46298

Summary

In the Linux kernel, the following vulnerability has been resolved:

pseries/papr-hvpipe: Fix race with interrupt handler

While executing ->ioctl handler or ->release handler, if an interrupt fires on the same cpu, then we can enter into a deadlock.

This patch fixes both these handlers to take spin_lock_irq{save|restore} versions of the lock to prevent this deadlock.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux814ef095f12c9fa142043ee689500f3a41bb6dab < 342c966f81cfc3cb6c297e80b37a9f3a5d637d2caffected
LinuxLinux814ef095f12c9fa142043ee689500f3a41bb6dab < 7a4f0846ee6cc8cf44ae0046ed42e3259d1dd45baffected
LinuxLinux6.18affected
LinuxLinux0 < 6.18unaffected
LinuxLinux7.0.7 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References