CVE-2026-43377

CVE-2026-43377 affects ksmbd in the Linux kernel where, under KSMBD_DEBUG_AUTH logging, generate_smb3signingkey() and generate_smb3encryptionkey() log session, signing, encryption, and decryption key bytes. The issue allows potential information disclosure by exposing credentials through verbose ...

CVE-2026-43376

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43376 ksmbd: fix use-after-free by using call_rcu() for oplock_info

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43376

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

PT-2026-39037

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the ksmbd module. The system frees the oplock info structure immediately using kfree, while it is still being accessed under RCU Read-Copy-Update read-si...

PT-2026-39038

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description When KSMBD DEBUG AUTH logging is enabled, the functions generate smb3signingkey and generate smb3encryptionkey log session, signing, encryption, and decryption key bytes, which can lead ...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from ksmbd’s ability to record key bytes during SMB3 signature and encryption key generation, potentially...

CVE-2026-43185

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix signededness bug in smbdirectpreparenegotiation smbdirectpreparenegotiation casts an unsigned u32 value from sp-maxrecvsize and req-preferredsendsize to a signed int before computing mintint, .... A maliciously provide...

CVE-2026-43185 ksmbd: fix signededness bug in smb_direct_prepare_negotiation()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix signededness bug in smbdirectpreparenegotiation smbdirectpreparenegotiation casts an unsigned u32 value from sp-maxrecvsize and req-preferredsendsize to a signed int before computing mintint, .... A maliciously provide...

CVE-2026-43185

In Linux kernel ksmbd, a signedness bug in smb_direct_prepare_negotiation() casts unsigned __u32 values from sp->max_recv_size and req->preferred_send_size to signed int before min_t(). A crafted preferred_send_size of 0x80000000 can be treated as smaller than max_recv_size, enabling a subs...

Linux Distros Unpatched Vulnerability : CVE-2026-43185

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix signededness bug in smbdirectpreparenegotiation smbdirectpreparenegotiation casts an unsigned u32 value from sp-maxrecvsize and req-preferredsendsize...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a symbolic error in the smbdirectpreparenegotiation function within ksmbd. This vulnerability may...

PT-2026-37525

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A signedness bug exists in the smb direct prepare negotiation function. The function casts unsigned u32 values from sp-max recv size and req-preferred send size to signed integers before...

Exploit for CVE-2026-31717

CVE-2026-31717: ksmbd DHnC Durable-Handle Reconnect Access-Con...

ksmbd: fix out-of-bounds write in smb2_get_ea() EA alignment

...

SUSE CVE-2026-31704

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use checkaddoverflow to prevent u16 DACL size overflow setposixaclentriesdacl and setntacldacl accumulate ACE sizes in u16 variables. When a file has many POSIX ACL entries, the accumulated size can wrap past 65535, causin...

SUSE CVE-2026-31706

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate numaces and harden ACE walk in smbinheritdacl smbinheritdacl trusts the on-disk numaces value from the parent directory's DACL xattr and uses it to size a heap allocation: acesbase = kmallocsizeofstruct smbace...

SUSE CVE-2026-31707

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate response sizes in ipcvalidatemsg ipcvalidatemsg computes the expected message size for each response type by adding or multiplying attacker-controlled fields from the daemon response to a fixed struct size in...

SUSE CVE-2026-31717

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

SUSE CVE-2026-31718

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbdclosefd via durable scavenger When a durable file handle survives session disconnect TCP close without SMB2LOGOFF, sessionfdcheck sets fp-conn = NULL to preserve the handle for later reconnection...