{"id":"CVE-2026-98405","published":"2026-10-14T14:17:51.603","lastModified":"2026-10-14T14:17:51.603","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix missing iov bounds check in parse_posix_sids()\n\nIn parse_posix_sids(), sidsbuf_end is calculated using the server-supplied\nout_len without being validated against the actual length of the received\niov (iov_len).\n\nIf a server provides an inflated out_len, sidsbuf_end will point past the\nend of the iov. This defeats the bounds guards in posix_info_sid_size(),\nallowing out-of-bounds reads into adjacent kernel memory.\n\nFix this by rejecting responses where the calculated sidsbuf_end would\nexceed the received iov boundaries or cause pointer wraparound.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/2f8ed71aaaba3bc8b19cd9930cc62e63e142b299","tags":[]},{"url":"https://git.kernel.org/stable/c/b09d092eb24ad0110f16a9b7c1ed5d2a0c1733dc","tags":[]},{"url":"https://git.kernel.org/stable/c/b862996e5105be1293da9cdc85da77b76021c3bd","tags":[]},{"url":"https://git.kernel.org/stable/c/d91b9a3b2b38e5ac1b51e9e5b23fe53ad7b49644","tags":[]},{"url":"https://git.kernel.org/stable/c/eac6917a42899aad0617bbf04798c5dd946a1fe5","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}