Linux Distros Unpatched Vulnerability : CVE-2026-89630

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - smb: client: restore the dataoffset bound in isvalidoplockbreak Commit 83bfbd0bb902 cifs: Remove the RFC1002 header from smbhdr changed the quantity this bound ...

CVE-2026-89630

In the Linux kernel, the following vulnerability has been resolved: smb: client: restore the dataoffset bound in isvalidoplockbreak Commit 83bfbd0bb902 "cifs: Remove the RFC1002 header from smbhdr" changed the quantity this bound is measured against. It used to be srv-totalread minus the 4-byte...

UBUNTU-CVE-2026-89630

In the Linux kernel, the following vulnerability has been resolved: smb: client: restore the dataoffset bound in isvalidoplockbreak Commit 83bfbd0bb902 "cifs: Remove the RFC1002 header from smbhdr" changed the quantity this bound is measured against. It used to be srv-totalread minus the 4-byte...

CVE-2026-89630

CVE-2026-89630 is a critical vulnerability in the Linux kernel's CIFS/SMB client . A regression introduced by commit 83bfbd0bb902 (which removed the RFC1002 header from smb_hdr) caused the data_offset bound check in is_valid_oplock_break() to evaluate to zero, effectively disabling the overflow g...

AZL-54696 CVE-2024-35863 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in isvalidoplockbreak Skip sessions that are being teared down status == SESEXITING to avoid UAF...

CVE-2024-35863 smb: client: fix potential UAF in is_valid_oplock_break()

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in isvalidoplockbreak Skip sessions that are being teared down status == SESEXITING to avoid UAF...