CVE-2026-46155
critical · 9.1In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in smb2_compound_op() If a server sends a truncated response but a large OutputBufferLength, and terminates the EA list early, check_wsl_eas() returns success without validating that the entire OutputBufferLength fits within iov_len. Then smb2_compound_op() does: memcpy(idata->wsl.eas, data[0], size[0]); Where size[0] is OutputBufferLength. If iov_len is smaller than size[0], memcpy can read beyond the end of the rsp_iov allocation and leak adjacent kernel heap memory.
9.1
CVSS
0.5%
EPSS (exploit prob.)
40th
EPSS percentile
2026-05-28
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weaknesses
CWE-125
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| linux | linux_kernel | >= 6.6.32, < 6.6.140 |
| linux | linux_kernel | >= 6.9, < 6.12.88 |
| linux | linux_kernel | >= 6.13, < 6.18.30 |
| linux | linux_kernel | >= 6.19, < 7.0.7 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
Check a specific version with /api/v1/cve/match.
References
- https://git.kernel.org/stable/c/512d33bc8ea4ea5c19728ee118715f4b1f4d1926
- https://git.kernel.org/stable/c/8d09328dfda089675e4c049f3f256064a1d1996b
- https://git.kernel.org/stable/c/9b3af35645ff9cd334edc130249f9a2fb2bea25f
- https://git.kernel.org/stable/c/a16f70a71be4b5a4eccf39a9bf09b47285f4cb7c
- https://git.kernel.org/stable/c/dffb44b2e06a2908e249f0f93156fc987eee1d1c
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-46155