CVE-2022-49680
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Record status
- Modified
Affected
- Linux Kernel < 4.9.321
- Linux Kernel < 4.14.286
- Linux Kernel < 4.19.250
- Linux Kernel < 5.4.202
- Linux Kernel < 5.10.127
- Linux Kernel < 5.15.51
- Linux Kernel < 5.18.8
- Linux Kernel 5.19
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Fix and advisories
- https://git.kernel.org/stable/c/31d09571bb071c20f6bdc0bb7ac1ef8dd2987c04
- https://git.kernel.org/stable/c/545ae5cbae839ce39bfe09828e413f1c916082de
- https://git.kernel.org/stable/c/68f28d52e6cbab8dcfa249cac4356d1d0573e868
- https://git.kernel.org/stable/c/7571bcecf01b69f0d3ec60ca41ce5d4c75411a4a
- https://git.kernel.org/stable/c/c4c79525042a4a7df96b73477feaf232fe44ae81
- https://git.kernel.org/stable/c/d23f76018e17618559da9eea179d137362023f95
- https://git.kernel.org/stable/c/f9b77a52937582a5b99a5a07e4ef1e2f48f87347
- https://git.kernel.org/stable/c/fc354856e9fad9cd36e2ad28f9da70716025055a
References
- https://git.kernel.org/stable/c/31d09571bb071c20f6bdc0bb7ac1ef8dd2987c04
- https://git.kernel.org/stable/c/545ae5cbae839ce39bfe09828e413f1c916082de
- https://git.kernel.org/stable/c/68f28d52e6cbab8dcfa249cac4356d1d0573e868
- https://git.kernel.org/stable/c/7571bcecf01b69f0d3ec60ca41ce5d4c75411a4a
- https://git.kernel.org/stable/c/c4c79525042a4a7df96b73477feaf232fe44ae81
- https://git.kernel.org/stable/c/d23f76018e17618559da9eea179d137362023f95
- https://git.kernel.org/stable/c/f9b77a52937582a5b99a5a07e4ef1e2f48f87347
- https://git.kernel.org/stable/c/fc354856e9fad9cd36e2ad28f9da70716025055a