CVE-2022-48816

MEDIUM EPSS 16.7%
Published Jul 16, 20241y ago · Modified Jun 17, 20262w ago
4.7 CVSS 3.1
Medium
Find Similar
Published Jul 16, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: lock against ->sock changing during sysfs read ->sock can be set to NULL asynchronously unless ->recv_mutex is held. So it is important to hold that mutex. Otherwise a sysfs read can trigger an oops. Commit 17f09d3f619a ("SUNRPC: Check if the xprt is connected before handling sysfs reads") appears to attempt to fix this problem, but it only narrows the race window.

CVSS Details

Base Score
4.7
Exploitability
1.0
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
16.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥5.10.67  –  <5.11
linuxlinux_kernel*≥5.13.19  –  <5.16.10
linuxlinux_kernel5.17any
linuxlinux_kernel5.17any
linuxlinux_kernel5.17any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/9482ab4540f5bcc869b44c067ae99b5fca16bd07
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b49ea673e119f59c71645e2f65b3ccad857c90ee
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fdc42287ae3f8a35cc2098307f52d7864b4bc8ed

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/9482ab4540f5bcc869b44c067ae99b5fca16bd07
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b49ea673e119f59c71645e2f65b3ccad857c90ee
    Patch