mailbox: zynq-ipi: fix error handling while device_register() fails
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: mailbox: zynq-ipi: fix error handling while device_register() fails If device_register() fails, it has two issues: 1. The name allocated by dev_set_name() is leaked. 2. The parent of device is not NULL, device_unregister() is called in zynqmp_ipi_free_mboxes(), it will lead a kernel crash because of removing not added device. Call put_device() to give up the reference, so the name is freed in kobject_cleanup(). Add device registered check in zynqmp_ipi_free_mboxes() to avoid null-ptr-deref.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2
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-2022-50672
- 2026-10-03 Alias added: GHSA-fc53-63px-vp2j
References
Other 6
- https://git.kernel.org/stable/c/b3a5c76f61e2b380e29dfc6705854ca1ee85501d
- https://git.kernel.org/stable/c/a39b4de0804f9fe0ae911b359ffd4afe7d9d933b
- https://git.kernel.org/stable/c/4f05d8e2fb3ab702c2633a74571e1b31cb579985
- https://git.kernel.org/stable/c/f2d63cefc012cafe1b7651bbf3302f8bcd8bea4a
- https://git.kernel.org/stable/c/3fcf079958c00d83c51e4f250abf2c77fe9cc1b9
- https://git.kernel.org/stable/c/a6792a0cdef0b1c2d77920246283a72537e60e94
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Sources
- CVE-2022-50672 · CVE Program
- CVE-2022-50672 · NVD
- FIRST EPSS
- GHSA-fc53-63px-vp2j · GitHub Advisory Database · CC BY 4.0
- CVE-2022-50672 · Red Hat security data · CC BY 4.0
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