CVE-2024-43830

2024-08-1710:15:08

Linux

web.nvd.nist.gov

linux kernel

vulnerability

sysfs attributes

trigger-data

device_remove_groups

AI Score

6.4

Confidence

Low

EPSS

Percentile

13.7%

JSON

In the Linux kernel, the following vulnerability has been resolved:

leds: trigger: Unregister sysfs attributes before calling deactivate()

Triggers which have trigger specific sysfs attributes typically store
related data in trigger-data allocated by the activate() callback and
freed by the deactivate() callback.

Calling device_remove_groups() after calling deactivate() leaves a window
where the sysfs attributes show/store functions could be called after
deactivation and then operate on the just freed trigger-data.

Move the device_remove_groups() call to before deactivate() to close
this race window.

This also makes the deactivation path properly do things in reverse order
of the activation path which calls the activate() callback before calling
device_add_groups().

Affected configurations

Vulners

Node

linuxlinux_kernelRange4.19–4.19.320

linuxlinux_kernelRange4.20.0–5.4.282

linuxlinux_kernelRange5.5.0–5.10.224

linuxlinux_kernelRange5.11.0–5.15.165

linuxlinux_kernelRange5.16.0–6.1.103

linuxlinux_kernelRange6.2.0–6.6.44

linuxlinux_kernelRange6.7.0–6.10.3

linuxlinux_kernelRange6.11.0≥

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/leds/led-triggers.c"
    ],
    "versions": [
      {
        "version": "a7e7a3156300",
        "lessThan": "c3b7a650c871",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a7e7a3156300",
        "lessThan": "d1415125b701",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a7e7a3156300",
        "lessThan": "09c1583f0e10",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a7e7a3156300",
        "lessThan": "3fb6a9d67cfd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a7e7a3156300",
        "lessThan": "734ba6437e80",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a7e7a3156300",
        "lessThan": "cb8aa9d2a4c8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a7e7a3156300",
        "lessThan": "0788a6f3523d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a7e7a3156300",
        "lessThan": "c0dc9adf9474",
        "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/leds/led-triggers.c"
    ],
    "versions": [
      {
        "version": "4.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.19",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.320",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.282",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.224",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.165",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.103",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.44",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10.3",
        "lessThanOrEqual": "6.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.11",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]