CVE-2022-50380

MEDIUM EPSS 4.2%
Published Sep 18, 20259mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 18, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: mm: /proc/pid/smaps_rollup: fix no vma's null-deref Commit 258f669e7e88 ("mm: /proc/pid/smaps_rollup: convert to single value seq_file") introduced a null-deref if there are no vma's in the task in show_smaps_rollup.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥4.19  –  <4.19.264
linuxlinux_kernel*≥4.20  –  <5.4.221
linuxlinux_kernel*≥5.5  –  <5.10.152
linuxlinux_kernel*≥5.11  –  <5.15.76
linuxlinux_kernel*≥5.16  –  <6.0.6

References 6

  • git.kernel.org https://git.kernel.org/stable/c/33fc9e26b7cb39f0d4219c875a2451802249c225
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6bb8769326c46db3058780c0640dcc49d8187b24
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/97898139ca9b81ba9322a585e07490983c53b55a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a50ed2d28727ff605d95fb9a53be8ff94e8eaaf4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c4c84f06285e48f80e9843d0775ad92714ffc35a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dbe863bce7679c7f5ec0e993d834fe16c5e687b5
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/33fc9e26b7cb39f0d4219c875a2451802249c225
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6bb8769326c46db3058780c0640dcc49d8187b24
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/97898139ca9b81ba9322a585e07490983c53b55a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a50ed2d28727ff605d95fb9a53be8ff94e8eaaf4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c4c84f06285e48f80e9843d0775ad92714ffc35a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dbe863bce7679c7f5ec0e993d834fe16c5e687b5
    Patch