CVE-2022-50077

MEDIUM EPSS 5.2%
Published Jun 18, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jun 18, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix reference count leak in aa_pivotroot() The aa_pivotroot() function has a reference counting bug in a specific path. When aa_replace_current_label() returns on success, the function forgets to decrement the reference count of “target”, which is increased earlier by build_pivotroot(), causing a reference leak. Fix it by decreasing the refcount of “target” in that path.

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
5.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 14

VendorProductVersionRange
linuxlinux_kernel*≥4.14.1  –  <4.14.291
linuxlinux_kernel*≥4.15  –  <4.19.256
linuxlinux_kernel*≥4.20  –  <5.4.211
linuxlinux_kernel*≥5.5  –  <5.10.138
linuxlinux_kernel*≥5.11  –  <5.15.63
linuxlinux_kernel*≥5.16  –  <5.19.4
linuxlinux_kernel4.14any
linuxlinux_kernel4.14any
linuxlinux_kernel4.14any
linuxlinux_kernel4.14any
linuxlinux_kernel4.14any
linuxlinux_kernel4.14any
linuxlinux_kernel4.14any
linuxlinux_kernel4.14any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/11c3627ec6b56c1525013f336f41b79a983b4d46
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2ceeb3296e9dde1d5772348046affcefdea605e2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3ca40ad7afae144169a43988ef1a3f16182faf0a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64103ea357734b82384c925cba4758fdb909be0c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d53194707d2a1851be027cd74266b96ceff799d3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ef6fb6f0d0d8440595b45a7e53c6162c737177f4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f4d5c7796571624e3f380b447ada52834270a287
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/11c3627ec6b56c1525013f336f41b79a983b4d46
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2ceeb3296e9dde1d5772348046affcefdea605e2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3ca40ad7afae144169a43988ef1a3f16182faf0a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64103ea357734b82384c925cba4758fdb909be0c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d53194707d2a1851be027cd74266b96ceff799d3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ef6fb6f0d0d8440595b45a7e53c6162c737177f4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f4d5c7796571624e3f380b447ada52834270a287
    Patch