Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from not properly destroying smbd connections when MR allocation fails in cifs, which could lead to the disclosure of...

SUSE 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...

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

CVE-2023-53399 affects the Linux kernel’s ksmbd component, specifically a NULL pointer dereference in smb2_get_info_filesystem(). The issue occurs when share is present but share->path is NULL, which can trigger a crash. The connected sources consistently describe the vulnerability as resolved...

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...

OESA-2025-1095 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 race condition between session lookup and expire Thread A + Thread B ksmbdsessionlookup | smb2sesssetup sess = xaload | | | xaerase&conn-sessions,...

AZL-53715 CVE-2024-50284 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix the missing xastore error check xastore can fail, it return xaerr-EINVAL if the entry cannot be stored in an XArray, or xaerr-ENOMEM if memory allocation failed, so check error for xastore to fix it...

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...