Bug 2367607 (CVE-2025-37990)

Summary: CVE-2025-37990 kernel: wifi: brcm80211: fmac: Add error handling for brcmf_usb_dl_writeimage()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-05-20 18:01:33 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: brcm80211: fmac: Add error handling for brcmf_usb_dl_writeimage()

The function brcmf_usb_dl_writeimage() calls the function
brcmf_usb_dl_cmd() but dose not check its return value. The
'state.state' and the 'state.bytes' are uninitialized if the
function brcmf_usb_dl_cmd() fails. It is dangerous to use
uninitialized variables in the conditions.

Add error handling for brcmf_usb_dl_cmd() to jump to error
handling path if the brcmf_usb_dl_cmd() fails and the
'state.state' and the 'state.bytes' are uninitialized.

Improve the error message to report more detailed error
information.
Comment 1 Avinash Hanwate 2025-05-21 05:37:18 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025052000-CVE-2025-37990-62bd@gregkh/T