Bug 2347965 (CVE-2022-49226)

Summary: CVE-2022-49226 kernel: net: asix: add proper error handling of usb read errors
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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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 03:12:54 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: asix: add proper error handling of usb read errors

Syzbot once again hit uninit value in asix driver. The problem still the
same -- asix_read_cmd() reads less bytes, than was requested by caller.

Since all read requests are performed via asix_read_cmd() let's catch
usb related error there and add __must_check notation to be sure all
callers actually check return value.

So, this patch adds sanity check inside asix_read_cmd(), that simply
checks if bytes read are not less, than was requested and adds missing
error handling of asix_read_cmd() all across the driver code.
Comment 1 Avinash Hanwate 2025-02-26 12:29:54 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022622-CVE-2022-49226-b30c@gregkh/T
Comment 4 Avinash Hanwate 2025-02-26 16:50:35 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022622-CVE-2022-49226-b30c@gregkh/T