kernel: Fix of 42 CVEs

Bluetooth: hcisysfs: Fix attempting to call deviceadd multiple times CVE-2022-50419 - firewire: net: fix use after free in fwnetfinishincomingpacket CVE-2023-53432 - wifi: brcmfmac: fix use-after-free bug in brcmfnetdevstartxmit CVE-2022-50408 - wifi: brcmfmac: slab-out-of-bounds read in...

Astra Linux – vulnerability in linux-6.12

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix off-by-8 bounds check in checkwsleas The bounds check uses u8 ea + nlen + 1 + vlen as the end of the EA name and value; however, eadata is located at offset sizeofstruct smb2filefulleainfo = 8 from ea, not at...

Astra Linux – vulnerability in linux-6.1, linux-6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Do not log keys in SMB3 signing and encryption key generation When KSMBDDEBUGAUTH logging is enabled, generatesmb3signingkey and generatesmb3encryptionkey log the session, signing, encryption, and decryption key bytes...

Astra Linux – vulnerability in linux-6.1, linux-6.12

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix OOB reads parsing symlink error response When a CREATE returns STATUSSTOPPEDONSYMLINK, smb2checkmessage returns success without any length validation, leaving the symlink parsers as the only defense against an...

CLSA-2025-1742471200 kernel: Fix of 21 CVEs

net: defer final 'struct net' free in netns dismantle CVE-2024-56658 - smb: client: fix potential deadlock when releasing mids CVE-2023-52757 - tcp/dccp: Don't use timerpending in reqskqueueunlink. CVE-2024-50154 - ALSA: 6fire: Release resources at card release CVE-2024-53239 - smb: client: fix...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in ksmbd within the Linux kernel versions 5.15 through 5.19, prior to 5.19.2. There is a heap-based buffer overflow in the setntacldacl function, which is related to the use of the SMB2QUERYINFOHE function after an incorrectly formatted SMB2SETINFOHE command...

Astra Linux – vulnerability in linux-5.15

In the Linux kernel, the following vulnerability has been resolved: cifs: fix small mempool leak in SMB2negotiate In some cases of failure dialect mismatches in SMB2negotiate, after the request is sent, the checks would return -EIO when they should rather set rc = -EIO and jump to negexit to free...

Astra Linux – vulnerability in linux-5.10, linux-5.15, linux

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix oops due to uncleared server-smbdconn in reconnect In smbddestroy, clear the server-smbdconn pointer after freeing the smbdconnection struct it points to, so that reconnection does not get confused...

Astra Linux – vulnerability in linux-5.15, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix deadlock in smb2findsmbtcon Unlock cifstcpseslock before calling cifsputsmbses to avoid such deadlock...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: smb: Client: Fixed a potential Use-after-Free UAF in smb2isvalidoplockbreak. Skipped sessions that are being torn down status == SESEXITING to avoid UAF...

Astra Linux – vulnerability in linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: unset conn-binding on failed binding request When a multichannel SMB2SESSIONSETUP request with SMB2SESSIONREQFLAGBINDING fails, ksmbd sets conn-binding = true but never clears it on the error path. This leaves the connecti...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: TCP: fixed page frag corruption upon a page fault. Steffen reported a corruption of the TCP stream for HTTP requests served by the Apache web-server, using a CIFS mount-point and the corresponding file’s memory mapping. The root...

Astra Linux – vulnerability in linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: smb: client: validate the whole DACL before rewriting it in cifsacl buildsecdesc and idmodetocifsacl derive a DACL pointer from a server-supplied dacloffset and then use the incoming ACL to rebuild the chmod/chown security...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: smb: client: fixed potential OOBs in smb2ParseContexts Validated offsets and lengths before dereferencing to create contexts in smb2ParseContexts. This fix addresses the following OOPs when accessing invalid create contexts fr...

Astra Linux – vulnerability in linux-5.15

A flaw was found in the Linux kernel’s ksmbd, a high-performance in-kernel SMB server. The specific flaw resides in how SMB2TREECONNECT and SMB2QUERYINFO commands are processed. The issue stems from a lack of proper validation of a pointer prior to accessing it. An attacker can exploit this...

Astra Linux – vulnerability in linux-5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: call rcubarrier in ksmbdserverexit The race condition issue is triggered by the race between closing a connection and rmmod. In ksmbd, rcubarrier is not called at module unload time; thus, nothing prevents ksmbd from being...

CVE-2026-93786

A flaw was found in the Linux kernel's ksmbd in-kernel Server Message Block component. When creating new files or directories, ksmbd improperly modified inherited Access Control Lists ACLs by overwriting restrictive permission masks. An authenticated user creating objects on an SMB share could...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: fixed a UAF in smb20oplockbreakack. removed references after using opinfo...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: cifs: Fixed the error in the length of the VALIDATENEGOTIATEINFO message. The commit code d5c7076b772a includes the following changes: - Added smb3.1.1 to the default dialect list. - Extended the number of dialects from 3 to 4. -...

Astra Linux – Vulnerability in Linux 5.15

A use-after-free flaw was discovered in the smb2isstatusiotimeout function in CIFS within the Linux kernel. After CIFS transfers response data via a system call, there are still local variables pointing to the memory region. If the system call frees those pointers faster than CIFS uses them, CIFS...