CVE-2026-46185
published 2026-05-28CVE-2026-46185: 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…
critical9.1CVSS 3.1
AVNACLPRNUINSUCHINAH
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
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 6.0.16 < 6.1 | 6.1 |
| linux | linux | >= 76894f3e2f71177747b8b4763fb180e800279585 < 2be11faf79e49fb8250a181ff0b4d2b2f084af83 | 2be11faf79e49fb8250a181ff0b4d2b2f084af83 |
| linux | linux | >= 76894f3e2f71177747b8b4763fb180e800279585 < ef6495d4df6e7af8f3de67e65150881c880f696c | ef6495d4df6e7af8f3de67e65150881c880f696c |
| linux | linux | >= 76894f3e2f71177747b8b4763fb180e800279585 < 15dc0a4de743a1aaa7b859b3aea79f08c695396c | 15dc0a4de743a1aaa7b859b3aea79f08c695396c |
| linux | linux | >= 76894f3e2f71177747b8b4763fb180e800279585 < b8c8a704f0bc133deb171f6aeb6f3a684203e212 | b8c8a704f0bc133deb171f6aeb6f3a684203e212 |
| linux | linux | >= 76894f3e2f71177747b8b4763fb180e800279585 < b9561402489d41149f63e001a74384863b7b30a6 | b9561402489d41149f63e001a74384863b7b30a6 |
| linux | linux | >= 76894f3e2f71177747b8b4763fb180e800279585 < d62b8d236fab503c6fec1d3e9a38bea71feaca20 | d62b8d236fab503c6fec1d3e9a38bea71feaca20 |
| linux | linux_kernel | — | — |