CVE-2026-64380

creationtimestamp| type| source ---|---|--- 2026-07-25 16:16:08+00:00| seen| https://infosec.exchange/users/vuldb/statuses/116981508859860722 2026-08-06 04:50:36+00:00| seen| https://www.hkcert.org/security-bulletin/debian-linux-kernel-multiple-vulnerabilities20260806...

CVE-2026-64380

In the Linux kernel, the following vulnerability has been resolved: smb: client: harden POSIX SID length parsing posixinfosidsize reads sid1 to obtain the subauthority count, but its existing boundary check still accepts buffers with only one remaining byte. Require two bytes before reading sid1 ...