by Kastro CVE-2026-46185
Linux Linux — smb/client: fix out-of-bounds read in symlink_data()
Description · from the CVE record
In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in symlink_data() Since smb2_check_message() returns success without length validation for the symlink error response, in symlink_data() it is possible for iov->iov_len to be smaller than sizeof(struct smb2_err_rsp). If the buffer only contains the base SMB2 header (64 bytes), accessing err->ErrorContextCount (at offset 66) or err->ByteCount later in symlink_data() will cause an out-of-bounds read.
Affected
ProductAffectedFixed inSource
Linux76894f3e2f71177747b8b4763fb180e800279585 – < 2be11faf79e49fb8250a181ff0b4d2b2f084af832be11faf79e49fb8250a181ff0b4d2b2f084af83CNA
Linux76894f3e2f71177747b8b4763fb180e800279585 – < ef6495d4df6e7af8f3de67e65150881c880f696cef6495d4df6e7af8f3de67e65150881c880f696cCNA
Linux76894f3e2f71177747b8b4763fb180e800279585 – < 15dc0a4de743a1aaa7b859b3aea79f08c695396c15dc0a4de743a1aaa7b859b3aea79f08c695396cCNA
Linux76894f3e2f71177747b8b4763fb180e800279585 – < b8c8a704f0bc133deb171f6aeb6f3a684203e212b8c8a704f0bc133deb171f6aeb6f3a684203e212CNA
Linux76894f3e2f71177747b8b4763fb180e800279585 – < b9561402489d41149f63e001a74384863b7b30a6b9561402489d41149f63e001a74384863b7b30a6CNA
Linux76894f3e2f71177747b8b4763fb180e800279585 – < d62b8d236fab503c6fec1d3e9a38bea71feaca20d62b8d236fab503c6fec1d3e9a38bea71feaca20CNA
Linux2d046892a493d9760c35fdaefc3017f27f91b621–CNA
Linux6.0.16 – < 6.16.1CNA
Linux6.16.1.175CNA
SIMATIC S7-1500 TM MFP - GNU/Linux subsystemall versions–siemens-SADP
Scores by source
Linux (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial