CVE-2024-42135

2024-07-3008:15:05

Linux

web.nvd.nist.gov

linux kernel

vhost_task

sigkill

vulnerability

flush work

AI Score

6.6

Confidence

Low

EPSS

Percentile

16.2%

JSON

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:

marking the worker as killed so we no longer try to use it with
new virtqueues and new flush operations.
setting the virtqueue to worker mapping so no new works are queued.
running all the exiting works.

Affected configurations

Vulners

Node

linuxlinux_kernelRange6.6.0–6.6.39

linuxlinux_kernelRange6.7.0–6.9.9

linuxlinux_kernelRange6.10.0≥

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/vhost/vhost.c",
      "drivers/vhost/vhost.h",
      "include/linux/sched/vhost_task.h",
      "kernel/vhost_task.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f4",
        "lessThan": "abe067dc3a66",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "dec987fe2df6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "db5247d9bf5c",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/vhost/vhost.c",
      "drivers/vhost/vhost.h",
      "include/linux/sched/vhost_task.h",
      "kernel/vhost_task.c"
    ],
    "versions": [
      {
        "version": "6.6.39",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.9",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]