Bug 2348020 (CVE-2022-49385)

Summary: CVE-2022-49385 kernel: driver: base: fix UAF when driver_attach failed
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-02-26 03:14:50 UTC 
In the Linux kernel, the following vulnerability has been resolved:

driver: base: fix UAF when driver_attach failed

When driver_attach(drv); failed, the driver_private will be freed.
But it has been added to the bus, which caused a UAF.

To fix it, we need to delete it from the bus when failed.
Comment 1 Avinash Hanwate 2025-02-26 11:42:51 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022648-CVE-2022-49385-258c@gregkh/T
Comment 4 Avinash Hanwate 2025-02-26 16:06:42 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022648-CVE-2022-49385-258c@gregkh/T