4.7

CVE-2026-46298: pseries/papr-hvpipe: Fix race with interrupt handler

Modified
AliasesUBUNTU-CVE-2026-46298DEBIAN-CVE-2026-46298CGA-2gc5-wm78-jx2r
Published 08-06-2026Last modified 15-10-2026

Vulnerability summary

CVE-2026-46298 is a medium (CVSS 4.7) vulnerability in linux. EPSS estimates a 0.08% chance of exploitation in the next 30 days, higher than 0.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.7/10
010
Medium · v3.1 (NVD)
EPSS score
0.08%
0%100%
Low · -0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 12 · Related 13
OPENSUSE-SU-2026:11014-1USN-8566-1USN-8568-1USN-8569-1USN-8593-1USN-8603-1

Timeline

  1. 08-06-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.08%

Chance of exploitation in the next 30 days

Percentile

0%

Versus all other CVEs

30-day change

Decrease -0.01 pp

From 0.10% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu106 products
  • linux< 7.0.0-28.28
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 7.0.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Chainguard21 products
  • linux-aws-6.18All versions (No fix recorded)
  • linux-azure-6.18All versions (No fix recorded)
  • linux-desktop-6.18All versions (No fix recorded)
  • linux-desktop-6.18-bootcAll versions (No fix recorded)
  • linux-desktop-6.18-bootc-boot-installedAll versions (No fix recorded)
Linux2 products
  • linux≥ 814ef095f12c9fa142043ee689500f3a41bb6dab, < b33d6f5da16e0eec95b933342812c689cdfcec03 | ≥ 814ef095f12c9fa142043ee689500f3a41bb6dab, < 342c966f81cfc3cb6c297e80b37a9f3a5d637d2c | ≥ 814ef095f12c9fa142043ee689500f3a41bb6dab, < 7a4f0846ee6cc8cf44ae0046ed42e3259d1dd45b | 6.18
  • linux_kernel≥ 6.18, < 7.0.7 | 7.1:rc1 | 7.1:rc2
Debian1 product
  • linux< 7.0.7-1

4 vendors · 130 products

References

18 links
Show all 18 references