Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Added a bounds check for the durable handle context. A missing bounds check was added for the durable handle context...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The use-of-free variable issue in ksmbdfreeworkstruct has been fixed. As a result, the interimentry of ksmbdwork can be deleted after the oplock is released. We no longer need to manage this using a linked list. The interi...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fixed a use-after-free in smb2leasebreaknoti. The tcptransport resource has been moved to ksmbdconnfree. If the ksmbd connection is referenced at the time when the ksmbd server thread terminates, it will not be freed...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: corrected the incorrect validation of the numaces field in smbacl. parsedcal now validates numaces to allocate an array of posixacestatearray. If numaces is greater than ULONGMAX / sizeofstruct smbace++, it results in a...

The vulnerability of the `ksmbd_vfs_kern_path_locked()` function in the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the ksmbdvfskernpathlocked function in the Linux operating system is related to the execution of operations outside of the buffer in memory. Exploiting this vulnerability can allow an attacker to cause a service failure...

Linux Kernel ksmbd Session Setup Null Pointer Dereference Denial-of-Service Vulnerability

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability, but only systems with ksmbd enabled are vulnerable. The specific flaw exists within the handling of preauth...

The vulnerability of the smb2_sess_setup function in the fs/smb/server/smb2pdu.c module of the ksmbd component of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the smb2sesssetup function in the fs/smb/server/smb2pdu.c module of the ksmbd component in the Linux operating system lies in the possibility of exploiting memory after it is freed. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

CVE-2023-38426

An issue was discovered in the Linux kernel before 6.3.4. ksmbd has an out-of-bounds read in smb2findcontextvals when createcontext's namelen is larger than the tag length...

CVE-2023-38429

An issue was discovered in the Linux kernel before 6.3.4. fs/ksmbd/connection.c in ksmbd has an off-by-one error in memory allocation because of ksmbdsmb2checkmessage that may lead to out-of-bounds access...

CVE-2025-37962

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix memory leak in parseleasestate The previous patch that added bounds check for create lease context introduced a memory leak. When the bounds check fails, the function returns NULL without freeing the previously allocat...

SUSE CVE-2025-37899

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in session logoff The sess-user object can currently be in use by another thread, for example if another connection has sent a session setup request to bind to the session being free'd. The handler for...

SUSE CVE-2025-37926

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbdsessionrpcopen A UAF issue can occur due to a race condition between ksmbdsessionrpcopen and sessionrpcclose. Add rpclock to the session to protect it...

SUSE CVE-2025-37952

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix UAF in closefiletableids A use-after-free is possible if one thread destroys the file via ksmbdclosefd while another thread holds a reference to it. The existing checks on fp-refcount are not sufficient to prevent this...

SUSE CVE-2025-37956

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent rename with empty string Client can send empty newname string to ksmbd server. It will cause a kernel oops from dalloc. This patch return the error when attempting to rename a file or directory with an empty new na...

CVE-2025-37962

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix memory leak in parseleasestate The previous patch that added bounds check for create lease context introduced a memory leak. When the bounds check fails, the function returns NULL without freeing the previously allocat...

CVE-2025-37956

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent rename with empty string Client can send empty newname string to ksmbd server. It will cause a kernel oops from dalloc. This patch return the error when attempting to rename a file or directory with an empty new na...

DEBIAN-CVE-2025-37952

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix UAF in closefiletableids A use-after-free is possible if one thread destroys the file via ksmbdclosefd while another thread holds a reference to it. The existing checks on fp-refcount are not sufficient to prevent this...

DEBIAN-CVE-2025-37956

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent rename with empty string Client can send empty newname string to ksmbd server. It will cause a kernel oops from dalloc. This patch return the error when attempting to rename a file or directory with an empty new na...

CVE-2025-37947

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent out-of-bounds stream writes by validating pos ksmbdvfsstreamwrite did not validate whether the write offset pos was within the bounds of the existing stream data length vlen. If pos was greater than or equal to vle...

DEBIAN-CVE-2025-37947

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent out-of-bounds stream writes by validating pos ksmbdvfsstreamwrite did not validate whether the write offset pos was within the bounds of the existing stream data length vlen. If pos was greater than or equal to vle...