CVE-2026-64536

NameCVE-2026-64536
DescriptionIn 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: - 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. - 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().
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-4720-1, DLA-4723-1, DLA-4724-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)bullseye5.10.223-1vulnerable
bullseye (security)5.10.262-1vulnerable
bookworm6.1.176-1vulnerable
bookworm (security)6.1.180-1fixed
trixie6.12.94-1vulnerable
trixie (security)6.12.101-1fixed
forky7.1.8-1fixed
sid7.1.8-2fixed
linux-6.1 (PTS)bullseye (security)6.1.180-1~deb11u1fixed
linux-6.12 (PTS)bookworm (security)6.12.101-1~deb12u1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebookworm6.1.180-1DLA-4720-1
linuxsourcetrixie6.12.96-1
linuxsource(unstable)7.1.4-1
linux-6.1sourcebullseye6.1.180-1~deb11u1DLA-4723-1
linux-6.12sourcebookworm6.12.100-1~deb12u1DLA-4724-1

Notes

https://git.kernel.org/linus/3bf39f711ff27c64be8680a8938bcc5001982e81 (7.2-rc3)

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