CVE-2022-50672

published 2025-12-09

CVE-2022-50672: In the Linux kernel, the following vulnerability has been resolved: mailbox: zynq-ipi: fix error handling while device_register() fails If device_register()…

Priority P4 22 medium 5.5

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.

Affected

17 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 6.1.4-1 (bookworm)	linux 6.1.4-1 (bookworm)
linux	linux	—	—
linux	linux	>= 4981b82ba2ff87df6a711fcd7a233c615df5fc79 < b3a5c76f61e2b380e29dfc6705854ca1ee85501d	b3a5c76f61e2b380e29dfc6705854ca1ee85501d
linux	linux	>= 4981b82ba2ff87df6a711fcd7a233c615df5fc79 < a39b4de0804f9fe0ae911b359ffd4afe7d9d933b	a39b4de0804f9fe0ae911b359ffd4afe7d9d933b
linux	linux	>= 4981b82ba2ff87df6a711fcd7a233c615df5fc79 < 4f05d8e2fb3ab702c2633a74571e1b31cb579985	4f05d8e2fb3ab702c2633a74571e1b31cb579985
linux	linux	>= 4981b82ba2ff87df6a711fcd7a233c615df5fc79 < f2d63cefc012cafe1b7651bbf3302f8bcd8bea4a	f2d63cefc012cafe1b7651bbf3302f8bcd8bea4a
linux	linux	>= 4981b82ba2ff87df6a711fcd7a233c615df5fc79 < 3fcf079958c00d83c51e4f250abf2c77fe9cc1b9	3fcf079958c00d83c51e4f250abf2c77fe9cc1b9
linux	linux	>= 4981b82ba2ff87df6a711fcd7a233c615df5fc79 < a6792a0cdef0b1c2d77920246283a72537e60e94	a6792a0cdef0b1c2d77920246283a72537e60e94
linux	linux_kernel	>= 0 < 5.10.178-1	5.10.178-1
linux	linux_kernel	>= 0 < 6.1.4-1	6.1.4-1
linux	linux_kernel	>= 0 < 6.1.4-1	6.1.4-1
linux	linux_kernel	>= 0 < 6.1.4-1	6.1.4-1
linux	linux_kernel	>= 5.1.0 < 5.4.229	5.4.229
linux	linux_kernel	>= 5.11.0 < 5.15.86	5.15.86
linux	linux_kernel	>= 5.16.0 < 6.0.16	6.0.16
linux	linux_kernel	>= 5.5.0 < 5.10.163	5.10.163
linux	linux_kernel	>= 6.1.0 < 6.1.2	6.1.2

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CWE-253