Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: smb: client: fixed a use-after-free in smb2queryinfocompound The following UAF was triggered when running fstests generic/072 with KASAN enabled against Windows Server 2022 and mount options “multichannel, maxChannels=2,...

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 found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fixed a slab-out-of-bounds issue in smb2allocaterspbuf. If -ProtocolId is set to SMB2 TRANSFORMPROTONUM, the validation of the request size could be skipped. If the request size is smaller than sizeofstruct smb2queryinfore...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: smb: client: Fixed an oops due to uninitialized variables in smb2unlink. If SMB2openinit or SMB2closeinit fails e.g., due to reconnection, the iovs structure @rqst may remain uninitialized. As a result, calling SMB2openfree,...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fixed a NULL pointer dereferencing issue in smb2getinfofilesystem. If share is provided, share-path will be NULL, which can lead to a NULL pointer dereferencing issue...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: smb/server: The function ksmbdsessionrpcclose is called on the error path in the createsmb2pipe function. When the ksmbdiovpinrsp function fails, we should call ksmbdsessionrpcclose...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The hardcoded hdr2len parameter was replaced with the offsetof function in smb2calcmaxoutbuflen. After this commit e2b76ab8b5c9 "ksmbd: add support for read compound", the management of response buffers was changed to use ...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The validation of the request buffer size was added in smb2allocaterspbuf. The response buffer should be allocated in smb2allocaterspbuf before validation of the request. However, fields within the payload as well as the...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: a out-of-bounds error in initsmb2rsphdr has been fixed. If a client sends a SMB2 negotiate request and then a SMB1 negotiate request, initsmb2rsphdr is called for the SMB1 negotiate request, since needneg is set to false...

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 SMB2LOGOFF commands. The issue arises from the lack of proper validation of a pointer before accessing it. An attacker can exploit this...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fixed an infinite loop caused by resetting nextsmb2rcvhdroff during error paths. The issue occurs when a signed request fails the smb2 signature verification check. In processrequest, if checksignreq returns an error,...

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 in smb2isvalidleasebreak. Skipped sessions that are being torn down status == SESEXITING to avoid Use-after-Free vulnerabilities...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in the Linux kernel before version 6.3.4. ksmbd has a buffer overflow vulnerability in the smb2findcontextvals function, when the namelen of createcontext is larger than the length of the tag...

SUSE CVE-2026-43378

In the Linux kernel, the following vulnerability has been resolved: smb: server: fix use-after-free in smb2open The opinfo pointer obtained via rcudereferencefp-fopinfo is dereferenced after rcureadunlock, creating a use-after-free window...

openSUSE 16 Security Update : wireshark (openSUSE-SU-2026:20685-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20685-1 advisory. This update for wireshark fixes the following issues - CVE-2026-3201: missing limit checks in USB HID protocol dissector's parsereportdescriptor...

OESA-2026-2226 wireshark security update

Wireshark is an open source tool for profiling network traffic and analyzing packets. Such a tool is often referred to as a network analyzer, network protocol analyzer or sniffer. Security Fixes: ICMPv6 PvD protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of...

CVE-2026-43362

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix in-place encryption corruption in SMB2write SMB2write places write payload in iov1..n as part of rqiov. smb3inittransformrq pointer-shares rqiov, so cryptmessage encrypts iov1 in-place, replacing the original...

CVE-2026-43378 smb: server: fix use-after-free in smb2_open()

In the Linux kernel, the following vulnerability has been resolved: smb: server: fix use-after-free in smb2open The opinfo pointer obtained via rcudereferencefp-fopinfo is dereferenced after rcureadunlock, creating a use-after-free window...

CVE-2026-43378

In the Linux kernel, the following vulnerability has been resolved: smb: server: fix use-after-free in smb2open The opinfo pointer obtained via rcudereferencefp-fopinfo is dereferenced after rcureadunlock, creating a use-after-free window...

CVE-2026-43378

CVE-2026-43378 affects the Linux kernel SMB server (smb2_open). A use-after-free arises because the opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is dereferenced after rcu_read_unlock(), creating a use-after-free window. Multiple sources (SUSE, Red Hat, Debian OSV, Ubuntu, Debian t...