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LinuxCVE-2024-41049

HistoryJul 29, 2024 - 3:15 p.m.

CVE-2024-41049

2024-07-2915:15:13

CWE-416

Linux

web.nvd.nist.gov

linux kernel

use-after-free

filelock

posix lock inode

vulnerability

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

6.6

Confidence

Low

EPSS

Percentile

5.0%

JSON

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

filelock: fix potential use-after-free in posix_lock_inode

Light Hsieh reported a KASAN UAF warning in trace_posix_lock_inode().
The request pointer had been changed earlier to point to a lock entry
that was added to the inode’s list. However, before the tracepoint could
fire, another task raced in and freed that lock.

Fix this by moving the tracepoint inside the spinlock, which should
ensure that this doesn’t happen.

Affected configurations

Nvd

Vulners

Node

linuxlinux_kernelRange5.4.257–5.4.280

linuxlinux_kernelRange5.10.197–5.10.222

linuxlinux_kernelRange5.15.133–5.15.163

linuxlinux_kernelRange6.1.55–6.1.100

linuxlinux_kernelRange6.6–6.6.41

linuxlinux_kernelRange6.7–6.9.10

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": [
      "fs/locks.c"
    ],
    "versions": [
      {
        "version": "117fb80cd1e6",
        "lessThan": "1cbbb3d9475c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a6f4129378ca",
        "lessThan": "7d4c14f4b511",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "766e56faddbe",
        "lessThan": "02a896426075",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "34bff6d85001",
        "lessThan": "5cb36e35bc10",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "74f6f5912693",
        "lessThan": "432b06b69d1d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "74f6f5912693",
        "lessThan": "116599f6a269",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "74f6f5912693",
        "lessThan": "1b3ec4f7c03d",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/locks.c"
    ],
    "versions": [
      {
        "version": "6.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.6",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.280",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.222",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.163",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.100",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.41",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.10",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]