Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: smb: client: Fixed a potential Use-after-Allocation UAF in cifsstatsprocshow. Skipped sessions that are being terminated status == SESEXITING to avoid UAF...

SUSE CVE-2026-64140

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in procshowfiles When a SMB2 client opens a file with a durable v2 handle and then issues SMB2 SESSIONLOGOFF, sessionfdcheck clears fp-tcon = NULL on the reconnectable file pointer but leaves t...

CVE-2026-64140

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in procshowfiles When a SMB2 client opens a file with a durable v2 handle and then issues SMB2 SESSIONLOGOFF, sessionfdcheck clears fp-tcon = NULL on the reconnectable file pointer but leaves t...

CVE-2026-64140 ksmbd: fix null pointer dereference in proc_show_files()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in procshowfiles When a SMB2 client opens a file with a durable v2 handle and then issues SMB2 SESSIONLOGOFF, sessionfdcheck clears fp-tcon = NULL on the reconnectable file pointer but leaves t...

EUVD-2026-45825

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in procshowfiles When a SMB2 client opens a file with a durable v2 handle and then issues SMB2 SESSIONLOGOFF, sessionfdcheck clears fp-tcon = NULL on the reconnectable file pointer but leaves t...

CVE-2026-64140

The CVE-2026-64140 issue affects the Linux kernel’s ksmbd: after a SMB2 session logoff, a reconnectable file pointer may still be present in global_ft.idr. When users read /proc/fs/ksmbd/files, proc_show_files() dereferences fp->tcon->id without NULL checking, causing a null-ptr dereference...

CVE-2026-64140

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in procshowfiles When a SMB2 client opens a file with a durable v2 handle and then issues SMB2 SESSIONLOGOFF, sessionfdcheck clears fp-tcon = NULL on the reconnectable file pointer but leaves t...

CVE-2026-64140 ksmbd: fix null pointer dereference in proc_show_files()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in procshowfiles When a SMB2 client opens a file with a durable v2 handle and then issues SMB2 SESSIONLOGOFF, sessionfdcheck clears fp-tcon = NULL on the reconnectable file pointer but leaves t...

PT-2026-61457

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A null pointer dereference exists in the proc show files function within the ksmbd module. This occurs when an SMB2 client opens a file using a durable v2 handle and then performs an SMB...

EUVD-2026-28682

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...

UBUNTU-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

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...

kernel: can: bcm: Fix UAF in bcm_proc_show()

A flaw was found in the Linux kernel's Controller Area Network CAN Broadcast Manager BCM module. A local attacker with low privileges could exploit a use-after-free vulnerability in the bcmprocshow function. This occurs because the bcmop object is freed before its corresponding procfs entry is...

kernel: can: bcm: Fix UAF in bcm_proc_show()

A flaw was found in the Linux kernel's Controller Area Network CAN Broadcast Manager BCM module. A local attacker with low privileges could exploit a use-after-free vulnerability in the bcmprocshow function. This occurs because the bcmop object is freed before its corresponding procfs entry is...

kernel: can: bcm: Fix UAF in bcm_proc_show()

A flaw was found in the Linux kernel's Controller Area Network CAN Broadcast Manager BCM module. A local attacker with low privileges could exploit a use-after-free vulnerability in the bcmprocshow function. This occurs because the bcmop object is freed before its corresponding procfs entry is...

ALSA-2025:3027 Important: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: can: bcm: Fix UAF in bcmprocshow CVE-2023-52922 For more details about the security issues, including the impact, a CVSS score,...

Important: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: can: bcm: Fix UAF in bcmprocshow CVE-2023-52922 For more details about the security issues, including the impact, a CVSS score,...

Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: can: bcm: Fix UAF in bcmprocshow CVE-2023-52922 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and other related information, refer to th...

kernel: can: bcm: Fix UAF in bcm_proc_show()

A flaw was found in the Linux kernel's Controller Area Network CAN Broadcast Manager BCM module. A local attacker with low privileges could exploit a use-after-free vulnerability in the bcmprocshow function. This occurs because the bcmop object is freed before its corresponding procfs entry is...

kernel: can: bcm: Fix UAF in bcm_proc_show()

A flaw was found in the Linux kernel's Controller Area Network CAN Broadcast Manager BCM module. A local attacker with low privileges could exploit a use-after-free vulnerability in the bcmprocshow function. This occurs because the bcmop object is freed before its corresponding procfs entry is...