Astra Linux – Vulnerability in Linux 6.1

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 found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: fixed a UAF Unauthorized File Access issue in smb20oplockbreakack. Also, the reference was removed after using opinfo...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: smb3: Fixed temporary data corruption during the insert range operation. The insert range does not discard the affected cached data; therefore, there is a risk of temporarily corrupting file data. Some minor optimizations were...

Astra Linux – Vulnerability in Samba

A flaw was discovered in the way Samba implemented SMB1 authentication. An attacker could exploit this flaw to retrieve the plain-text password sent over the network, even if Kerberos authentication was required...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: Corrected the incorrect validation of the next buffer length in smb2setea. There are multiple smb2eainfo buffers in the FILEFULLEAINFORMATION request from the client. ksmbd uses the NextEntryOffset of the current...

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 5.10

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Check outstanding simultaneous SMB operations If a client sends multiple SMB requests to ksmbd, it may exhaust too much memory through the “ksmbdworkcache”. This can lead to an Out-of-Memory error OOM. ksmbd has a credit...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: smb: client: fixed the 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 ...

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 handling of the SMB2TREECONNECT and SMB2QUERYINFO commands. The issue arises from the lack of proper validation of a pointer before accessing it. An...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: smb: Client: Fixed an error in parsing OOB read responses for symlinks. When a CREATE command returns STATUSSTOPPEDONSYMLINK, the smb2checkmessage function returns success without performing any length validation. As a result,...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The rcubarrier function was called in ksmbdserverexit. The bug was triggered due to racing between closing a connection and the rmmod operation. In ksmbd, rcubarrier is not called at the time of module unloading, so nothin...

Astra Linux – Vulnerability in Linux 6.1

A out-of-bounds read vulnerability was discovered in smb2dumpdetail in the fs/smb/client/smb2ops.c file within the Linux kernel. This issue could allow a local attacker to crash the system or leak internal kernel information...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: cifs: Fixed data corruption during writeback operations. The cifswriteback mechanism does not properly handle the situation where cifsextendwriteback reaches a point where an additional folio needs to be processed. This could...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: smb: client: fix double-free of TCPServerInfo::hostname When shutting down the server in cifsputtcpsession, the cifsd thread might reconnect to multiple DFS targets before realizing that it should exit the loop. As a result,...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: smb: client: avoid double-free in smbdfreesendio after smbdsendbatchflush smbdsendbatchFlush already calls smbdfreesendio; therefore, we should not call it again after smbdpostsend. It has been moved to the batch list...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: smb: client: Fixed a regression issue related to native SMB symbolic links. Some users and customers reported that their backup/copy tools began to fail when the directory being copied contained symbolic link targets that the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: smb: Client: Fixed issue where reference counting of @ses was missed. Use the new cifssmbsesincrefcount helper function to obtain an active reference to @ses and @ses-dfsrootses if set. This will prevent @ses-dfsrootses from...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: smb: client: Fixed the directory separator in SMB1 UNIX mounts. When calling cifsmountgettcon with SMB1 UNIX mounts, @cifssb-mntcifsflags needs to be read or updated only after calling resetcifsunixcaps. Otherwise, the...

Astra Linux – Vulnerability in Linux 5.10

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

USN-8279-1 linux, linux-aws, linux-aws-5.15, linux-aws-fips, linux-fips, linux-gcp, linux-gcp-fips, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-intel-iotg-5.15, linux-kvm, linux-nvidia, linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-oracle, linux-raspi, linux-realtime vulnerabilities

It was discovered that the Linux kernel algifaead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-31431 Several security issues were discovered in th...