CVE-2026-68431

A flaw was found in ksmbd in the Linux kernel. When handling Server Message Block version 2 SMB2 transform requests, the system fails to validate the minimum Protocol Data Unit PDU size. An unauthenticated remote attacker can send a specially crafted, short transform packet, bypassing security...

CVE-2026-68431

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate minimum PDU size for transform requests The receive path applies the minimum SMB2 PDU size check only when ProtocolId is SMB2PROTONUMBER. A packet carrying SMB2TRANSFORMPROTONUM bypasses the check even when the...

DEBIAN-CVE-2026-68431

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate minimum PDU size for transform requests The receive path applies the minimum SMB2 PDU size check only when ProtocolId is SMB2PROTONUMBER. A packet carrying SMB2TRANSFORMPROTONUM bypasses the check even when the...

CVE-2026-68431

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate minimum PDU size for transform requests The receive path applies the minimum SMB2 PDU size check only when ProtocolId is SMB2PROTONUMBER. A packet carrying SMB2TRANSFORMPROTONUM bypasses the check even when the...

CVE-2026-68431 ksmbd: validate minimum PDU size for transform requests

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate minimum PDU size for transform requests The receive path applies the minimum SMB2 PDU size check only when ProtocolId is SMB2PROTONUMBER. A packet carrying SMB2TRANSFORMPROTONUM bypasses the check even when the...

CVE-2026-68431

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate minimum PDU size for transform requests The receive path applies the minimum SMB2 PDU size check only when ProtocolId is SMB2PROTONUMBER. A packet carrying SMB2TRANSFORMPROTONUM bypasses the check even when the...

EUVD-2026-57039

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate minimum PDU size for transform requests The receive path applies the minimum SMB2 PDU size check only when ProtocolId is SMB2PROTONUMBER. A packet carrying SMB2TRANSFORMPROTONUM bypasses the check even when the...

CVE-2026-68431

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate minimum PDU size for transform requests The receive path applies the minimum SMB2 PDU size check only when ProtocolId is SMB2PROTONUMBER. A packet carrying SMB2TRANSFORMPROTONUM bypasses the check even when the...

CVE-2026-68431 ksmbd: validate minimum PDU size for transform requests

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate minimum PDU size for transform requests The receive path applies the minimum SMB2 PDU size check only when ProtocolId is SMB2PROTONUMBER. A packet carrying SMB2TRANSFORMPROTONUM bypasses the check even when the...

Linux Distros Unpatched Vulnerability : CVE-2026-68431

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: validate minimum PDU size for transform requests The receive path applies the minimum SMB2 PDU size check only when ProtocolId is SMB2PROTONUMBER. A pack...

PT-2026-70945

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ksmbd module where the receive path only applies the minimum SMB2 PDU Protocol Data Unit size check when the ProtocolId is SMB2 PROTO NUMBER. Packets using SMB2...

Linux Distros Unpatched Vulnerability : CVE-2026-68381

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: pin conn during async oplock break notification smb2oplockbreaknoti and smb2leasebreaknoti store a ksmbdconn pointer in an async ksmbdwork and then queue...

UBUNTU-CVE-2026-68100

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate numsubauth when copying ACE in setntacldacl setntacldacl copies each ACE from the attacker-controlled stored security descriptor verbatim into the response DACL without checking sid.numsubauth. The ACE bytes...

CVE-2026-68100 ksmbd: validate num_subauth when copying ACE in set_ntacl_dacl

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate numsubauth when copying ACE in setntacldacl setntacldacl copies each ACE from the attacker-controlled stored security descriptor verbatim into the response DACL without checking sid.numsubauth. The ACE bytes...

K000162853: Linux Kernel vulnerability CVE-2026-53198

Security Advisory Description 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 cancelf...

PT-2026-69501

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ksmbd module where the set ntacl dacl function copies Access Control Entries ACE from a stored security descriptor into the response Discretionary Access Control...

Linux Distros Unpatched Vulnerability : CVE-2026-68100

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: validate numsubauth when copying ACE in setntacldacl setntacldacl copies each ACE from the attacker-controlled stored security descriptor verbatim into...

openSUSE 16: libwireshark18 / libwiretap15 / libwsutil16 / wireshark / etc (openSUSE-SU-2026:21534-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21534-1 advisory. Update to version 4.4.17. - CVE-2026-6867: SMB2 protocol dissector crash bsc1263727. - CVE-2026-7375: UDS protocol dissector infinite loop...

CVE-2026-64597

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2close replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2closeinit fails before the next send, cleanup retains the previous buffer type and fre...

CVE-2026-64598

In the Linux kernel, the following vulnerability has been resolved: smb/client: Fix error code in smb2aeadreqalloc The "numsgs" variable is a u32 so "ERRPTRnumsgs" doesn't work. We would have to do something similar to the previous line where it's cast to int and then long. However, it's simpler ...