7.8

CVE-2024-26810: vfio/pci: Lock external INTx masking ops

Modified
AliasesUBUNTU-CVE-2024-26810DEBIAN-CVE-2024-26810
Published 05-04-2024Last modified 15-10-2026

Vulnerability summary

CVE-2024-26810 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.20%
0%100%
Low · 0.00 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 41 · Related 31
DLA-3842-1DSA-5658-1DSA-5681-1RHSA-2024:4823RHSA-2024:4831RHSA-2024:5065

Timeline

  1. 05-04-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Lock external INTx masking ops Mask operations through config space changes to DisINTx may race INTx configuration changes via ioctl. Create wrappers that add locking for paths outside of the core interrupt code. In particular, irq_type is updated holding igate, therefore testing is_intx() requires holding igate. For example clearing DisINTx from config space can otherwise race changes of the interrupt configuration. This aligns interfaces which may trigger the INTx eventfd into two camps, one side serialized by igate and the other only enabled while INTx is configured. A subsequent patch introduces synchronization for the latter flows.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.20% 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.

Ubuntu117 products
  • linuxAll versions (No fix recorded) | < 4.4.0-260.294 | < 4.15.0-230.242 | < 5.4.0-189.209 | < 5.15.0-116.126 | < 6.8.0-35.35
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1137.143 | < 4.4.0-1175.190 | < 4.15.0-1174.187 | < 5.4.0-1128.138 | < 5.15.0-1065.71 | < 6.8.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153, < 1e71b6449d55179170efc8dee8664510bb813b42 | ≥ 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153, < 3dd9be6cb55e0f47544e7cdda486413f7134e3b3 | ≥ 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153, < ec73e079729258a05452356cf6d098bf1504d5a6 | ≥ 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153, < 3fe0ac10bd117df847c93408a9d428a453cd60e5 | ≥ 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153, < 04a4a017b9ffd7b0f427b8c376688d14cb614651 | ≥ 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153, < 6fe478d855b20ac1eb5da724afe16af5a2aaaa40 | ≥ 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153, < 03505e3344b0576fd619416793a31eae9c5b73bf | ≥ 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153, < 810cd4bb53456d0503cc4e7934e063835152c1b7 | 3.6
  • linux_kernel≥ 3.6, < 5.4.274 | ≥ 5.5, < 5.10.215 | ≥ 5.11, < 5.15.154 | ≥ 5.16, < 6.1.84 | ≥ 6.2, < 6.6.24 | ≥ 6.7, < 6.7.12 | ≥ 6.8, < 6.8.3
Debian1 product
  • linux< 6.1.85-1 | < 6.7.12-1

3 vendors · 120 products

References

34 links
Show all 34 references