Bug 2347981 (CVE-2022-49680) - CVE-2022-49680 kernel: ARM: exynos: Fix refcount leak in exynos_map_pmu
Summary: CVE-2022-49680 kernel: ARM: exynos: Fix refcount leak in exynos_map_pmu
Keywords:
Status: NEW
Alias: CVE-2022-49680
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-26 03:13 UTC by OSIDB Bzimport
Modified: 2025-02-26 21:43 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-02-26 03:13:29 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ARM: exynos: Fix refcount leak in exynos_map_pmu

of_find_matching_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
of_node_put() checks null pointer.
Comment 1 Avinash Hanwate 2025-02-26 21:39:31 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022625-CVE-2022-49680-9dea@gregkh/T
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