ARM: cns3xxx: Fix refcount leak in cns3xxx_init
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: ARM: cns3xxx: Fix refcount leak in cns3xxx_init of_find_compatible_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 3.10 and later | 4.9.321, 4.14.286, 4.19.250, 5.4.202, 5.10.127, 5.15.51, 5.18.8, 5.19 | Patch available | CNA |
- Linux VendorLinux Affected 3.10 and later Fixed in 4.9.321, 4.14.286, 4.19.250, 5.4.202, 5.10.127, 5.15.51, 5.18.8, 5.19 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 3.10 to before 4.9.321; 4.10 to before 4.14.286; 4.15 to before 4.19.250; 4.20 to before 5.4.202; 5.5 to before 5.10.127; 5.11 to before 5.15.51; 5.16 to before 5.18.8 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* | 5.19 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* | 5.19 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* | 5.19 rc3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.10 to before 4.9.321; 4.10 to before 4.14.286; 4.15 to before 4.19.250; 4.20 to before 5.4.202; 5.5 to before 5.10.127; 5.11 to before 5.15.51; 5.16 to before 5.18.8 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* Versions 5.19 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* Versions 5.19 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* Versions 5.19 rc3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.9.321, 4.14.286, 4.19.250, 5.4.202, 5.10.127, 5.15.51, 5.18.8, 5.19
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2022-49677
- 2026-10-03 Alias added: GHSA-5vff-mfgm-ggcg
References
Patch 8
- https://git.kernel.org/stable/c/b8b84e01ca94e2e1f5492353e9c24dab520b2e5b
- https://git.kernel.org/stable/c/45bebbc8cea7d586a6216dc62814bdb380b9b29b
- https://git.kernel.org/stable/c/68d4303bf59662b64bd555e2aa0518282d20aa4f
- https://git.kernel.org/stable/c/d1359e4129ad43e43972a28838b87291c51de23d
- https://git.kernel.org/stable/c/c980392af1473d6d5662f70d8089c8e6d85144a4
- https://git.kernel.org/stable/c/da3ee7cd2f15922ad88a7ca6deee2eafdc7cd214
- https://git.kernel.org/stable/c/dc5170aae24e04068fd5ea125d06c0ab51f48a27
- https://git.kernel.org/stable/c/1ba904b6b16e08de5aed7c1349838d9cd0d178c5
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- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2022-49677 · CVE Program
- CVE-2022-49677 · NVD
- FIRST EPSS
- GHSA-5vff-mfgm-ggcg · GitHub Advisory Database · CC BY 4.0
- CVE-2022-49677 · Red Hat security data · CC BY 4.0
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