Bug 2461466 (CVE-2026-31626) - CVE-2026-31626 kernel: staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify()
Summary: CVE-2026-31626 kernel: staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_ver...
Keywords:
Status: NEW
Alias: CVE-2026-31626
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-24 15:03 UTC by OSIDB Bzimport
Modified: 2026-04-24 20:36 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2026-04-24 15:03:05 UTC
In the Linux kernel, the following vulnerability has been resolved:

staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify()

Initialize le_tmp64 to zero in rtw_BIP_verify() to prevent using
uninitialized data.

Smatch warns that only 6 bytes are copied to this 8-byte (u64)
variable, leaving the last two bytes uninitialized:

drivers/staging/rtl8723bs/core/rtw_security.c:1308 rtw_BIP_verify()
warn: not copying enough bytes for '&le_tmp64' (8 vs 6 bytes)

Initializing the variable at the start of the function fixes this
warning and ensures predictable behavior.


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