CVEvulnerability
CVE-2022-50077
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2025-06-18
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
Affected configurations
• linux linux kernel (>= 4.14.1 < 4.14.291)
• linux linux kernel (>= 4.15 < 4.19.256)
• linux linux kernel (>= 4.20 < 5.4.211)
• linux linux kernel (>= 5.5 < 5.10.138)
• linux linux kernel (>= 5.11 < 5.15.63)
• linux linux kernel (>= 5.16 < 5.19.4)
• linux linux kernel 4.14
References
- https://git.kernel.org/stable/c/11c3627ec6b56c1525013f336f41b79a983b4d46 Patch
- https://git.kernel.org/stable/c/2ceeb3296e9dde1d5772348046affcefdea605e2 Patch
- https://git.kernel.org/stable/c/3ca40ad7afae144169a43988ef1a3f16182faf0a Patch
- https://git.kernel.org/stable/c/64103ea357734b82384c925cba4758fdb909be0c Patch
- https://git.kernel.org/stable/c/d53194707d2a1851be027cd74266b96ceff799d3 Patch
- https://git.kernel.org/stable/c/ef6fb6f0d0d8440595b45a7e53c6162c737177f4 Patch
- https://git.kernel.org/stable/c/f4d5c7796571624e3f380b447ada52834270a287 Patch