56 matches found
Astra Linux – Vulnerability in Linux 5.15
A flaw was discovered in the ksmbd component of the Linux kernel, a high-performance in-kernel SMB server. The specific flaw occurs during the processing of SMB2SESSIONSETUP and SMB2LOGOFF commands. The issue arises due to the lack of proper locking when performing operations on an object. An...
Astra Linux – Vulnerability in Linux 5.15
A flaw was discovered in the ksmbd component of the Linux kernel, a high-performance in-kernel SMB server. The specific flaw exists in the processing of SMB2TREEDISCONNECT commands. The issue arises due to the lack of proper locking when performing operations on an object. An attacker can exploit...
Astra Linux – Vulnerability in Linux 6.1
In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: Fixed a race condition in the RPC handle list access mechanism. The sess-rpchandlelist XArray manages RPC handles within a ksmbd session. Access to this list is intended to be protected by sess-rpclock a rwsemaphore...
GHSA-FGMR-7W36-9QFQ SiYuan: Static-file routes bypass the publish-access controls enforced on the REST API, exposing templates, snippets and export artifacts to anonymous readers
CVE: This vulnerability corresponds to CVE-2026-72796. Summary Several static-file routes in the server mux kernel/server/serve.go are registered with CheckAuth only and serve directories directly, without the publish-access checks, sensitive-path blocklist, or refuseToAccess rules that the REST...
CVE-2026-82651: Exposure of Sensitive Information to an Unauthorized Actor
SiYuan before v3.8.1 does not apply the IsForbiddenAbsPath guard introduced in GHSA-c8r8-95hg-mp34 to the /history/path and /repo/diff/path endpoints in kernel/server/serve.go. These routes require admin authentication but construct file paths independently, so an authenticated administrator can...
CVE-2026-64578 ksmbd: validate compound request size before reading StructureSize2
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate compound request size before reading StructureSize2 When ksmbd validates a compound chained SMB2 request, ksmbdsmb2checkmessage reads pdu-StructureSize2 without first checking that the compound element is large...
UBUNTU-CVE-2026-64393
In the Linux kernel, the following vulnerability has been resolved: ksmbd: run set info with opener credentials SMB2 SETINFO handlers call path-based VFS helpers after checking the access mask granted to the SMB handle. Those helpers perform their owner, inode permission and LSM checks using the...
PT-2026-64658
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of a deferred file lock on SMB2 CLOSE then SMB2 CANCEL Commit f580d27e8928 "ksmbd: fix use-after-free of a deferred file lock on double SMB2 CANCEL" made smb2 cancel skip a work whose state is KSMBD WORK...
CVE-2026-64140 ksmbd: fix null pointer dereference in proc_show_files()
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in procshowfiles When a SMB2 client opens a file with a durable v2 handle and then issues SMB2 SESSIONLOGOFF, sessionfdcheck clears fp-tcon = NULL on the reconnectable file pointer but leaves t...
CVE-2026-59832: Improper Limitation of a Pathname to a Restricted Directory
SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, the /snippets/filepath route handler serveSnippets in kernel/server/serve.go joins a single-decoded request path with the snippets directory without subpath containment or sensitive-path checks, allowing an authenticat...
CVE-2026-54069
SiYuan Note
PT-2026-51890
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A resource leak exists in the ksmbd component of the Linux kernel during the durable v2 open process. When the parse durable handle context function handles a DURABLE REQ V2 request, it...
CVE-2026-31718
A flaw was found in ksmbd, the in-kernel SMB3 server for Linux. This vulnerability arises from an asymmetric cleanup process when a durable file handle survives a session disconnect. Specifically, byte-range locks are not properly cleared, leading to a 'use-after-free' error when the durable...
ksmbd: validate EaNameLength in smb2_get_ea()
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CVE-2026-31444
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...
PT-2026-26211
Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.6.2 Description SiYuan is a personal knowledge management system. The kernel WebSocket server accepts unauthenticated connections when a specific "auth keepalive" query parameter is present. After connection, incomin...
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...
CVE-2023-54250 ksmbd: avoid out of bounds access in decode_preauth_ctxt()
In the Linux kernel, the following vulnerability has been resolved: ksmbd: avoid out of bounds access in decodepreauthctxt Confirm that the accessed pnegctxt-HashAlgorithms address sits within the SMB request boundary; deassemblenegcontexts only checks that the eight byte smb2negcontext header +...