CVE-2026-46298

pseries/papr-hvpipe: Fix race with interrupt handler

MEDIUM
4.7
CVSS Score
Published: June 8, 2026 at 03:46 PM UTC
Updated: October 15, 2026 at 11:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.1%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.18 ≤ v < 7.0.77.17.1 rc17.1 rc2814ef095f12c9fa142043ee689500f3a41bb6dab
Vendor states this is fixed in 342c966f81cfc3cb6c297e80b37a9f3a5d637d2c (fixed)
Vendor states this is fixed in 7a4f0846ee6cc8cf44ae0046ed42e3259d1dd45b (fixed)
Vendor states this is fixed in 6.18 (unaffected)
Vendor states this is fixed in 6.18.57 (unaffected)
Vendor states this is fixed in 7.0.7 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-362

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