CVE-2026-89632

A flaw was found in the Linux kernel's Server Message Block SMB client. A malicious server could exploit this vulnerability by sending specially crafted data, leading to an out-of-bounds read. This occurs because the reparsebufptr function reads data before properly validating the buffer size,...

CVE-2026-89632

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-before-check of ReparseDataLength in reparsebufptr reparsebufptr reads buf-ReparseDataLength before checking that count covers the full fixed header: buf = struct reparsedatabuffer u8 io + off; len = sizeofbu...

CVE-2026-89632

CVE-2026-89632 affects the Linux kernel SMB client , specifically the reparse_buf_ptr() function. The root cause is a use-before-check flaw: the function reads buf->ReparseDataLength (at offset 4) before verifying that count covers the full 8-byte fixed header. If a server returns an OutputCou...

CVE-2026-89632 smb: client: fix use-before-check of ReparseDataLength in reparse_buf_ptr()

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-before-check of ReparseDataLength in reparsebufptr reparsebufptr reads buf-ReparseDataLength before checking that count covers the full fixed header: buf = struct reparsedatabuffer u8 io + off; len = sizeofbu...

EUVD-2026-76544

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-before-check of ReparseDataLength in reparsebufptr reparsebufptr reads buf-ReparseDataLength before checking that count covers the full fixed header: buf = struct reparsedatabuffer u8 io + off; len = sizeofbu...