CVE-2022-49462
CVE-2022-49462 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2022-54767
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
In the Linux kernel, the following vulnerability has been resolved: drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. a6xx_gmu_init() passes the node to of_find_device_by_node() and of_dma_configure(), of_find_device_by_node() will takes its reference, of_dma_configure() doesn't need the node after usage. Add missing of_node_put() to avoid refcount leak.
Frequently asked questions
- What is CVE-2022-49462?
- In the Linux kernel, the following vulnerability has been resolved: drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. a6xx_gmu_init() passes the node to of_find_device_by_node() and of_dma_configure(), of_find_device_by_node() will takes its reference, of_dma_configure() doesn't need the node after usage. Add missing of_node_put() to avoid refcount leak.
- How severe is CVE-2022-49462?
- CVE-2022-49462 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2022-49462 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-49462?
- CVE-2022-49462 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-49462?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2022-49462 have an EU (EUVD) identifier?
- Yes. CVE-2022-49462 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-54767.
- When was CVE-2022-49462 published?
- CVE-2022-49462 was published on 2025-02-26 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/06907a374f1b74f8f2fb30720dc6df81331e4fb5
- https://git.kernel.org/stable/c/48e82ce8cdb19c20a5020fa446b286d6a147450c
- https://git.kernel.org/stable/c/65ddbc0d26824e2a5d6154d01d8cf39344900213
- https://git.kernel.org/stable/c/6832e36f156ea35a6ed74bca72727806116effdd
- https://git.kernel.org/stable/c/c56de483093d7ad0782327f95dda7da97bc4c315
- https://git.kernel.org/stable/c/edff4c1af831d0c02e654eed9da7d74174de49d5
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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