CVE-2022-49168

HIGH EPSS 19.1%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not clean up repair bio if submit fails The submit helper will always run bio_endio() on the bio if it fails to submit, so cleaning up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs because we race with the endio function that is cleaning up the bio. Instead just return BLK_STS_OK as the repair function has to continue to process the rest of the pages, and the endio for the repair bio will do the appropriate cleanup for the page that it was given.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
19.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel* <5.10.248
linuxlinux_kernel*≥5.11  –  <5.15.184
linuxlinux_kernel*≥5.16  –  <5.16.19
linuxlinux_kernel*≥5.17  –  <5.17.2

References 5

  • git.kernel.org https://git.kernel.org/stable/c/7170875083254b51fcc5d67f96640977083f481e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8cbc3001a3264d998d6b6db3e23f935c158abd4d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d1cb11fb45ebbb1e7dfe5e9038b32ea72c184b14
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e76c78c48902dae6fa612749f59162bca0a79e0b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e7e1d15d2bd8c373cf621614ddd17971a2132713
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/7170875083254b51fcc5d67f96640977083f481e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8cbc3001a3264d998d6b6db3e23f935c158abd4d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d1cb11fb45ebbb1e7dfe5e9038b32ea72c184b14
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e76c78c48902dae6fa612749f59162bca0a79e0b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e7e1d15d2bd8c373cf621614ddd17971a2132713
    Patch