CVE-2026-31626 (GCVE-0-2026-31626)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:42 – Updated: 2026-04-24 14:42
VLAI?
Title
staging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d5b8f5f8d6fc09a8af5ed139c688660f578ed732 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b487a7754d874230299d5a9c2710ec4df8b2ed8a (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c2026c6b603ebec52f55015496703fe79077accf (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ef74ce5f0bc0e53ce702d8a794f3957884a26efc (git)
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    Linux Linux Unaffected: 6.12.83 , ≤ 6.12.* (semver)
Unaffected: 6.18.24 , ≤ 6.18.* (semver)
Unaffected: 6.19.14 , ≤ 6.19.* (semver)
Unaffected: 7.0.1 , ≤ 7.0.* (semver)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: initialize le_tmp64 in rtw_BIP_verify()\n\nInitialize le_tmp64 to zero in rtw_BIP_verify() to prevent using\nuninitialized data.\n\nSmatch warns that only 6 bytes are copied to this 8-byte (u64)\nvariable, leaving the last two bytes uninitialized:\n\ndrivers/staging/rtl8723bs/core/rtw_security.c:1308 rtw_BIP_verify()\nwarn: not copying enough bytes for \u0027\u0026le_tmp64\u0027 (8 vs 6 bytes)\n\nInitializing the variable at the start of the function fixes this\nwarning and ensures predictable behavior."
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    "datePublished": "2026-04-24T14:42:47.493Z",
    "dateReserved": "2026-03-09T15:48:24.124Z",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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