CVE-2026-64139

CVE-2026-64139 : In the Linux kernel ksmbd path, a memory-leak exists in set_posix_acl_entries_dacl() on overflow. The loop allocates a struct smb_sid with kmalloc_obj() each iteration and relies on per-iteration kfree() at loop end. Introduced break paths skip these frees, causing the sid buffer...

PT-2026-61458

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in compare guid key session fd check walks the per-inode m op list during durable-handle session teardown and sets op-conn = NULL for every opinfo whose conn matched the closing session's...

SUSE CVE-2026-53198

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of a deferred filelock on double SMB2CANCEL A deferred byte-range lock an SMB2LOCK that blocks registers an async work on conn-asyncrequests via setupasyncwork, with cancelfn = smb2removeblockedlock and...

SUSE CVE-2026-53271

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix NULL-deref of opinfo-conn in oplock/lease break notifiers smb2oplockbreaknoti and smb2leasebreaknoti read opinfo-conn into a local with neither READONCE nor a NULL check. Both run from oplockbreak after opinfogetlist h...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Validates the owner of the durable handle upon reconnection. Currently, ksmbd does not verify whether the user attempting to reconnect to a durable handle is the same user who originally opened the file. This allows any...

EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-2336)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : iommu/sva: invalidate stale IOTLB entries for kernel address spaceCVE-2025-71202 iommu: disable SVA when CONFIGX86 is setCVE-2025-71089 tls: Fix...

SUSE CVE-2026-46185

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in symlinkdata Since smb2checkmessage returns success without length validation for the symlink error response, in symlinkdata it is possible for iov-iovlen to be smaller than sizeofstruct...

EUVD-2026-32812

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in symlinkdata Since smb2checkmessage returns success without length validation for the symlink error response, in symlinkdata it is possible for iov-iovlen to be smaller than sizeofstruct...

CVE-2026-45972

The CVE-2026-45972 issue affects the Linux kernel SMB client, specifically smb2_open_file(), where improper handling could lead to memory corruption (UAF) or a double free during SMB2_open() retries. The fixed description states that zeroing err_iov and err_buftype before retrying SMB2_open() pre...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in durable v2 replay of active file handles parsedurablehandlecontext unconditionally assigns dhinfo-fp-conn to the current connection when handling a DURABLEREQV2 context with SMB2FLAGSREPLAYOPERATION...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in the Linux kernel before version 6.3.10. The file fs/smb/server/smb2misc.c in ksmbd does not validate the relationship between the command payload size and the RFC1002 length specification, resulting in a out-of-bounds read...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in the Linux kernel before version 6.3.9. ksmbd does not validate the SMB request protocol ID, resulting in an out-of-bounds read...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: Fixed an issue where shareconf was freed after use, in compound requests. smb2getksmbdtcon reuses work-tcon in compound requests without validating tcon-tstate. ksmbdtreeconnlookup checks that tstate is equal to...

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 resides in the handling of SMB2SESSIONSETUP commands. The problem arises due to a lack of control over resource consumption. An attacker can exploit this vulnerability to...

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...

Eternalblue-ms17-010-lab

01-EternalBlue-MS17-010-README.mdhttps://github.com/user-atta...

EUVD-2026-28668

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...

UBUNTU-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

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-2026-43362 smb: client: fix in-place encryption corruption in SMB2_write()

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...