CVE-2025-68809

In the Linux kernel, the following vulnerability has been resolved: ksmbd: vfs: fix race on mflags in vfscache ksmbd maintains delete-on-close and pending-delete state in ksmbdinode-mflags. In vfscache.c this field is accessed under inconsistent locking: some paths read and modify mflags under...

UBUNTU-CVE-2025-68817

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbdtreeconnectput under concurrency Under high concurrency, A tree-connection object tcon is freed on a disconnect path while another path still holds a reference and later executes put/write on it...

The vulnerability of the ksmbd_conn_free() function in the fs/smb/server/connection.c module of the SMB subsystem of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the ksmbdconnfree function in the fs/smb/server/connection.c module of the SMB subsystem of the Linux operating system is related to the reutilization of previously freed memory. Exploiting this vulnerability can allow an attacker to cause a service failure...

UBUNTU-CVE-2025-68246

In the Linux kernel, the following vulnerability has been resolved: ksmbd: close accepted socket when per-IP limit rejects connection When the per-IP connection limit is exceeded in ksmbdkthreadfn, the code sets ret = -EAGAIN and continues the accept loop without closing the just-accepted socket...

ksmbd: Fix race condition in RPC handle list access

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CVE-2025-39942 ksmbd: smbdirect: verify remaining_data_length respects max_fragmented_recv_size

In the Linux kernel, the following vulnerability has been resolved: ksmbd: smbdirect: verify remainingdatalength respects maxfragmentedrecvsize This is inspired by the check for dataoffset + datalength...

CVE-2023-53399

The connected documents confirm a Linux kernel vulnerability in ksmbd where a NULL pointer dereference could occur in smb2_get_info_filesystem() if share->path is NULL. A fix has been applied across affected kernels (Linux kernel 5.x line references appear in Astra Linux advisories and Debian/...

SUSE CVE-2025-38562

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generateencryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in generateencryptionkey could happen. sess-PreauthHashValue is...

CVE-2025-38562 ksmbd: fix null pointer dereference error in generate_encryptionkey

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generateencryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in generateencryptionkey could happen. sess-PreauthHashValue is...

DEBIAN-CVE-2023-3866

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate session id and tree id in the compound request This patch validate session id and tree id in compound request. If first operation in the compound is SMB2 ECHO request, ksmbd bypass session and tree validation. So...

DEBIAN-CVE-2025-38437

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potential use-after-free in oplock/lease break ack If ksmbdiovpinrsp return error, use-after-free can happen by accessing opinfo-state and opinfoput and ksmbdfdput could called twice...

CVE-2025-37947 ksmbd: prevent out-of-bounds stream writes by validating *pos

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...

ksmbd: fix type confusion via race condition when using ipc_msg_send_request

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UBUNTU-CVE-2025-37778

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix dangling pointer in krbauthenticate krbauthenticate frees sess-user and does not set the pointer to NULL. It calls ksmbdkrb5authenticate to reinitialise sess-user but that function may return without doing so. If that...

SUSE CVE-2024-26936

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate request buffer size in smb2allocaterspbuf The response buffer should be allocated in smb2allocaterspbuf before validating request. But the fields in payload as well as smb2 header is used in smb2allocaterspbuf. Th...

OESA-2024-1501 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out of bounds in initsmb2rsphdr If client send smb2 negotiate request and then send smb1 negotiate request, initsmb2rsphdr is called for smb1 negotiat...

USN-6705-1 linux-aws, linux-aws-5.15 vulnerabilities

It was discovered that the DesignWare USB3 for Qualcomm SoCs driver in the Linux kernel did not properly handle certain error conditions during device registration. A local attacker could possibly use this to cause a denial of service system crash. CVE-2023-22995 It was discovered that the NVIDIA...

UBUNTU-CVE-2023-52441

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out of bounds in initsmb2rsphdr If client send smb2 negotiate request and then send smb1 negotiate request, initsmb2rsphdr is called for smb1 negotiate request since needneg is set to false. This patch ignore smb1...

CLSA-2024-1708094049 Fix of 8 CVEs

CVE-url: https://ubuntu.com/security/CVE-2024-23851 - dm: limit the number of targets and parameter size area CVE-url: https://ubuntu.com/security/CVE-2024-1086 - netfilter: nftables: reject QUEUE/DROP verdict parameters CVE-url: https://ubuntu.com/security/CVE-2023-35827 - ravb: Fix use-after-fr...

USN-6628-1 linux-intel-iotg vulnerabilities

Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling sessions operations. A remote attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2023-32250, CVE-2023-32252, CVE-2023-32257...