PT-2026-64860 · Linux · Linux
CVE-2026-64536
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Published
2026-07-27
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Updated
2026-07-27
None
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In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8723bs: fix OOB reads in is ap in tkip() IE loop
The loop in is ap in tkip() iterates over IEs without verifying that
enough bytes remain before dereferencing the IE header or its payload:
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pIE->element id and pIE->length are read without checking that i + sizeof(*pIE) <= ie length, so a truncated IE at the end of the buffer causes an OOB read.
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For WLAN EID VENDOR SPECIFIC the code compares pIE->data + 12, which requires pIE->length >= 16. For WLAN EID RSN it compares pIE->data + 8, requiring pIE->length >= 12. Neither requirement is checked.
Add the missing IE header and payload bounds checks and guard each
data access with an explicit pIE->length minimum, matching the
pattern established in update beacon info().
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Related Identifiers
Affected Products
Linux