CVE-2024-42135

vhost_task: Handle SIGKILL by flushing work and exiting

MEDIUM
5.5
CVSS Score
Published: July 30, 2024 at 07:46 AM UTC
Updated: June 17, 2026 at 07:48 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: vhost_task: Handle SIGKILL by flushing work and exiting Instead of lingering until the device is closed, this has us handle SIGKILL by: 1. marking the worker as killed so we no longer try to use it with new virtqueues and new flush operations. 2. setting the virtqueue to worker mapping so no new works are queued. 3. running all the exiting works.

Affected

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

v < 6.6.396.4 ≤ v < 6.106.4 ≤ v < 6.6.396.4 ≤ v < 6.9.96.7 ≤ v < 6.9.96.4f9010dbdce911ee1f1af1398a24b1f9f992e0080
Vendor states this is fixed in abe067dc3a662eef7d5cddbbc41ed50a0b68b0af (fixed)
Vendor states this is fixed in db5247d9bf5c6ade9fd70b4e4897441e0269b233 (fixed)
Vendor states this is fixed in dec987fe2df670827eb53b97c9552ed8dfc63ad4 (fixed)
Vendor states this is fixed in 6.10 (unaffected)
Vendor states this is fixed in 6.4 (unaffected)
Vendor states this is fixed in 6.6.39 (unaffected)
Vendor states this is fixed in 6.9.9 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/abe067dc3a662eef7d5cddbbc41ed50a0b68b0af
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/db5247d9bf5c6ade9fd70b4e4897441e0269b233
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/dec987fe2df670827eb53b97c9552ed8dfc63ad4

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

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

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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