CVE-2026-31478 ksmbd: replace hardcoded hdr2_len with offsetof() in smb2_calc_max_out_buf_len()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: replace hardcoded hdr2len with offsetof in smb2calcmaxoutbuflen After this commit e2b76ab8b5c9 "ksmbd: add support for read compound", response buffer management was changed to use dynamic iov array. In the new design,...

CVE-2026-31477 ksmbd: fix memory leaks and NULL deref in smb2_lock()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix memory leaks and NULL deref in smb2lock smb2lock has three error handling issues after listdel detaches smblock from locklist at nocheckcl: 1 If vfslockfile returns an unexpected error in the non-UNLOCK path, goto out...

CVE-2026-31477 ksmbd: fix memory leaks and NULL deref in smb2_lock()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix memory leaks and NULL deref in smb2lock smb2lock has three error handling issues after listdel detaches smblock from locklist at nocheckcl: 1 If vfslockfile returns an unexpected error in the non-UNLOCK path, goto out...

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-2026-31476 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-2026-24640

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...

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...

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-2026-31433

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-2026-31432 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

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...

PT-2026-34275

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds write exists in ksmbd when processing compound requests, such as READ combined with QUERY INFOSecurity. If the initial command consumes most of the response buffer, ksmb...