CVE-2024-40939

2024-07-1213:15:16

Linux

web.nvd.nist.gov

linux kernel

net wwan iosm

vulnerability

region creation fail

ipc_devlink_create_region

delete process

tainted pointer

svace

AI Score

6.7

Confidence

Low

EPSS

Percentile

15.9%

JSON

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

net: wwan: iosm: Fix tainted pointer delete is case of region creation fail

In case of region creation fail in ipc_devlink_create_region(), previously
created regions delete process starts from tainted pointer which actually
holds error code value.
Fix this bug by decreasing region index before delete.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected configurations

Vulners

Node

linuxlinux_kernelRange5.16–6.1.95

linuxlinux_kernelRange6.2.0–6.6.35

linuxlinux_kernelRange6.7.0–6.9.6

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/net/wwan/iosm/iosm_ipc_devlink.c"
    ],
    "versions": [
      {
        "version": "4dcd183fbd67",
        "lessThan": "fe394d59cdae",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4dcd183fbd67",
        "lessThan": "040d93848703",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4dcd183fbd67",
        "lessThan": "37a438704d19",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4dcd183fbd67",
        "lessThan": "b0c9a2643541",
        "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/net/wwan/iosm/iosm_ipc_devlink.c"
    ],
    "versions": [
      {
        "version": "5.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.16",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.95",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.35",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.6",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]