Description


In the Linux kernel, the following vulnerability has been resolved: ksmbd: replace hardcoded hdr2_len with offsetof() in smb2_calc_max_out_buf_len() After this commit (e2b76ab8b5c9 "ksmbd: add support for read compound"), response buffer management was changed to use dynamic iov array. In the new design, smb2_calc_max_out_buf_len() expects the second argument (hdr2_len) to be the offset of ->Buffer field in the response structure, not a hardcoded magic number. Fix the remaining call sites to use the correct offsetof() value.

Related CPE's


o

linux

linux_kernel

14

Weaknesses



NVD-CWE-noinfo

CVSS impact metrics


CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.8 · Critical

Information


Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Vulnerability status

Analyzed

Published

2026-04-22T14:16:44.630Z

5 months ago

Last modified

2026-06-17T10:33:49.137Z

3 months ago