61 matches found
ksmbrace
ksmbrace Investigación de vulnerabilidades en ksmbd , el servidor SMB3 del kernel de Linux fs/smb/server/. Fallos de atacante autenticado en las rutas de identificador durable y de resolución de rutas de ksmbd. El nombre alude al tema de la condición de carrera de esta línea de trabajo ver el UAF...
Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15
In the Linux kernel, the following vulnerabilities have been resolved: smb/server: fixed a potential null-ptr-deref of leasectxinfo in smb2open A null-ptr-deref will occur when reqoplevel == SMB2OPLOCKLEVELLEASE and parseleasestate returns NULL. This issue was fixed by checking whether...
Linux Distros Unpatched Vulnerability : CVE-2026-80926
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix use-after-free in oplock break notification smb2oplockbreaknoti reads opinfo-conn without any lock and dereferences it after two allocations which ma...
DEBIAN-CVE-2026-80926
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in oplock break notification smb2oplockbreaknoti reads opinfo-conn without any lock and dereferences it after two allocations which may sleep. When the durable handle owning the oplock is disconnected,...
CVE-2026-80926
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in oplock break notification smb2oplockbreaknoti reads opinfo-conn without any lock and dereferences it after two allocations which may sleep. When the durable handle owning the oplock is disconnected,...
AZL-100751 CVE-2026-80926 affecting package kernel 6.6.150.1-1
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in oplock break notification smb2oplockbreaknoti reads opinfo-conn without any lock and dereferences it after two allocations which may sleep. When the durable handle owning the oplock is disconnected,...
CVE-2026-80926 ksmbd: fix use-after-free in oplock break notification
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in oplock break notification smb2oplockbreaknoti reads opinfo-conn without any lock and dereferences it after two allocations which may sleep. When the durable handle owning the oplock is disconnected,...
CVE-2026-80926
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in oplock break notification smb2oplockbreaknoti reads opinfo-conn without any lock and dereferences it after two allocations which may sleep. When the durable handle owning the oplock is disconnected,...
EUVD-2026-76248
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in oplock break notification smb2oplockbreaknoti reads opinfo-conn without any lock and dereferences it after two allocations which may sleep. When the durable handle owning the oplock is disconnected,...
CVE-2026-80926
CVE-2026-80926 is a use-after-free in the Linux kernel's ksmbd (in-kernel SMB server) module, in the smb2_oplock_break_noti() function. The function reads opinfo->conn without holding a lock and dereferences it after two allocations that may sleep. When the durable handle owning the oplock is ...
Linux Distros Unpatched Vulnerability : CVE-2026-72381
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix use-after-free of fp-owner.name in durable handle owner check Two concurrent SMB2 durable reconnects DH2C/DHnC on the same persistentid race the...
CVE-2026-72381 ksmbd: fix use-after-free of fp->owner.name in durable handle owner check
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of fp-owner.name in durable handle owner check Two concurrent SMB2 durable reconnects DH2C/DHnC on the same persistentid race the fp-owner.name compare-read in ksmbdvfscomparedurableowner against the kfr...
CVE-2026-64141
A flaw was found in the ksmbd component of the Linux kernel. A remote attacker can trigger a null pointer dereference by negotiating a new session with a specific client identifier ClientGuid and issuing a Server Message Block SMB2 CREATE request with a lease context on a different inode after a...
EUVD-2026-45825
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in procshowfiles When a SMB2 client opens a file with a durable v2 handle and then issues SMB2 SESSIONLOGOFF, sessionfdcheck clears fp-tcon = NULL on the reconnectable file pointer but leaves t...
SUSE CVE-2026-52996
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix durable fd leak on ClientGUID mismatch in durable v2 open ksmbdlookupfdcguid returns a ksmbdfile with its refcount incremented via ksmbdfpget. parsedurablehandlecontext in the DURABLEREQV2 case properly releases this...
CVE-2026-52996
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix durable fd leak on ClientGUID mismatch in durable v2 open ksmbdlookupfdcguid returns a ksmbdfile with its refcount incremented via ksmbdfpget. parsedurablehandlecontext in the DURABLEREQV2 case properly releases this...
CVE-2026-52996
Technical details are not publicly available in the provided documents. Monitor for updates.
Astra Linux – Vulnerability in Linux 6.12
In the Linux kernel, the following vulnerability has been resolved: smb/server: Fixed the refcount leak in parsedurablehandlecontext. When the command is a replay operation and -ENOEXEC is returned, the refcount of ksmbdfile must be released...
Astra Linux – Vulnerability in Linux 6.12
In the Linux kernel, the following vulnerability has been resolved: ksmbd: Validates the owner of the durable handle upon reconnection. Currently, ksmbd does not verify whether the user attempting to reconnect to a durable handle is the same user who originally opened the file. This allows any...
