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CVE-2026-46185

smb/client: fix out-of-bounds read in symlink_data() PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 76894f3e2f71177747b8b4763fb180e800279585 before 2be11faf79e49fb8250a181ff0b4d2b2f084af83; affected 76894f3e2f71177747b8b4763fb180e800279585 before ef6495d4df6e7af8f3de67e65150881c880f696c; affected 76894f3e2f71177747b8b4763fb180e800279585 before 15dc0a4de743a1aaa7b859b3aea79f08c695396c; affected 76894f3e2f71177747b8b4763fb180e800279585 before b8c8a704f0bc133deb171f6aeb6f3a684203e212; affected 76894f3e2f71177747b8b4763fb180e800279585 before b9561402489d41149f63e001a74384863b7b30a6; affected 76894f3e2f71177747b8b4763fb180e800279585 before d62b8d236fab503c6fec1d3e9a38bea71feaca20; affected 2d046892a493d9760c35fdaefc3017f27f91b621; affected 6.0.16 before 6.1
Linux / Linuxaffected 6.1; unaffected 0 before 6.1; unaffected 6.1.175 through 6.1.*; unaffected 6.6.140 through 6.6.*; unaffected 6.12.88 through 6.12.*; unaffected 6.18.30 through 6.18.*; unaffected 7.0.7 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

siemens-SADP

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.