CVE-2026-31476 ksmbd: do not expire session on binding failure

In the Linux kernel, the following vulnerability has been resolved: ksmbd: do not expire session on binding failure When a multichannel session binding request fails e.g. wrong password, the error path unconditionally sets sess-state = SMB2SESSIONEXPIRED. However, during binding, sess points to t...

CVE-2026-31476

In the Linux kernel, the following vulnerability has been resolved: ksmbd: do not expire session on binding failure When a multichannel session binding request fails e.g. wrong password, the error path unconditionally sets sess-state = SMB2SESSIONEXPIRED. However, during binding, sess points to t...

CVE-2026-31476 ksmbd: do not expire session on binding failure

In the Linux kernel, the following vulnerability has been resolved: ksmbd: do not expire session on binding failure When a multichannel session binding request fails e.g. wrong password, the error path unconditionally sets sess-state = SMB2SESSIONEXPIRED. However, during binding, sess points to t...

CVE-2026-31444

CVE-2026-31444 affects ksmbd in the Linux kernel. The vulnerability arises from two flaws in the oplock publication sequence inside smb_grant_oplock(): (1) opinfo is linked into ci->m_op_list before add_lease_global_list(), so if that call fails, a freed node is dereferenced by concurrent read...

CVE-2026-31444 ksmbd: fix use-after-free and NULL deref in smb_grant_oplock()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free and NULL deref in smbgrantoplock smbgrantoplock has two issues in the oplock publication sequence: 1 opinfo is linked into ci-moplist via opinfoadd before addleasegloballist is called. If...

CVE-2026-31432

A flaw was found in the ksmbd component of the Linux kernel. This vulnerability allows an attacker to cause the system to write data beyond its intended memory boundaries when processing specific network requests. Specifically, when a complex request combines data reading with security informatio...

EUVD-2026-24641

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potencial OOB in getfileallinfo for compound requests When a compound request consists of QUERYDIRECTORY + QUERYINFO FILEALLINFORMATION and the first command consumes nearly the entire maxtranssize, getfileallinfo woul...

EUVD-2026-24640

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix OOB write in QUERYINFO for compound requests When a compound request such as READ + QUERYINFOSecurity is received, and the first command READ consumes most of the response buffer, ksmbd could write beyond the allocated...

CVE-2026-31433

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potencial OOB in getfileallinfo for compound requests When a compound request consists of QUERYDIRECTORY + QUERYINFO FILEALLINFORMATION and the first command consumes nearly the entire maxtranssize, getfileallinfo woul...

CVE-2026-31433 ksmbd: fix potencial OOB in get_file_all_info() for compound requests

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potencial OOB in getfileallinfo for compound requests When a compound request consists of QUERYDIRECTORY + QUERYINFO FILEALLINFORMATION and the first command consumes nearly the entire maxtranssize, getfileallinfo woul...

CVE-2026-31433

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potencial OOB in getfileallinfo for compound requests When a compound request consists of QUERYDIRECTORY + QUERYINFO FILEALLINFORMATION and the first command consumes nearly the entire maxtranssize, getfileallinfo woul...

CVE-2026-31433 ksmbd: fix potencial OOB in get_file_all_info() for compound requests

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potencial OOB in getfileallinfo for compound requests When a compound request consists of QUERYDIRECTORY + QUERYINFO FILEALLINFORMATION and the first command consumes nearly the entire maxtranssize, getfileallinfo woul...

CVE-2026-31433

CVE-2026-31433 affects the Linux kernel ksmbd module. A vulnerability arises when processing a compound SMB request of QUERY_DIRECTORY + QUERY_INFO (FILE_ALL_INFORMATION): the code lacked a validation check on the client-provided OutputBufferLength before copying a filename into the smb2_file_all...

CVE-2026-31432

CVE-2026-31432 affects the Linux kernel ksmbd component. Affected handling of compound requests (e.g., READ + QUERY_INFO(Security)) could allow an out-of-bounds write when the first READ command consumes most of the response buffer and ksmbd builds a security descriptor. The root cause is that sm...

CVE-2026-31432 ksmbd: fix OOB write in QUERY_INFO for compound requests

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix OOB write in QUERYINFO for compound requests When a compound request such as READ + QUERYINFOSecurity is received, and the first command READ consumes most of the response buffer, ksmbd could write beyond the allocated...

CVE-2026-31432 ksmbd: fix OOB write in QUERY_INFO for compound requests

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix OOB write in QUERYINFO for compound requests When a compound request such as READ + QUERYINFOSecurity is received, and the first command READ consumes most of the response buffer, ksmbd could write beyond the allocated...

Linux Distros Unpatched Vulnerability : CVE-2026-31432

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix OOB write in QUERYINFO for compound requests When a compound request such as READ + QUERYINFOSecurity is received, and the first command READ consume...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013441)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013441 advisory. An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap- based buffer overflow in setntacldacl, related to use of...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the ksmbd module’s handling of the QUERYINFOSecurity composite request. This vulnerability may le...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013450)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013450 advisory. An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.18 before 5.18.18. fs/ksmbd/smb2pdu.c lacks length validation in the non-padding case in smb2writ...