CVE-2026-90155

In the Linux kernel, the following vulnerability has been resolved: ksmbd: detach blocked lock requests before freeing A filelock retained by ksmbd for byte-range lock bookkeeping can still be part of the VFS blocked-request graph. In particular, the VFS can chain a new waiter below an already...

DEBIAN-CVE-2026-90155

In the Linux kernel, the following vulnerability has been resolved: ksmbd: detach blocked lock requests before freeing A filelock retained by ksmbd for byte-range lock bookkeeping can still be part of the VFS blocked-request graph. In particular, the VFS can chain a new waiter below an already...

CVE-2026-90155 ksmbd: detach blocked lock requests before freeing

In the Linux kernel, the following vulnerability has been resolved: ksmbd: detach blocked lock requests before freeing A filelock retained by ksmbd for byte-range lock bookkeeping can still be part of the VFS blocked-request graph. In particular, the VFS can chain a new waiter below an already...

EUVD-2026-81748

In the Linux kernel, the following vulnerability has been resolved: ksmbd: detach blocked lock requests before freeing A filelock retained by ksmbd for byte-range lock bookkeeping can still be part of the VFS blocked-request graph. In particular, the VFS can chain a new waiter below an already...

CVE-2026-90155: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ksmbd: detach blocked lock requests before freeing A filelock retained by ksmbd for byte-range lock bookkeeping can still be part of the VFS blocked-request graph. In particular, the VFS can chain a new waiter below an already...

CVE-2026-89484: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: lockd: fix NULL dereference on lockowner allocation failure nlmclntlocksinitprivate installs NLM file lock operations even when nlmclntfindlockowner fails to allocate a lockowner. nlmclntproc then returns -ENOMEM, but the VFS sti...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: lockd: Other missing fields are set when unlocking files. The vfslockfile function expects that the struct filelock structure is fully initialized by the caller. If the flfile field is NULL after re-exporting NFSv3, an OOP err...

CVE-2026-64437

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of a deferred filelock on SMB2CLOSE then SMB2CANCEL Commit f580d27e8928 "ksmbd: fix use-after-free of a deferred filelock on double SMB2CANCEL" made smb2cancel skip a work whose state is...

AZL-90336 CVE-2026-53198 affecting package kernel for versions less than 6.6.143.1-1

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...

CVE-2026-53198

The CVE-2026-53198 issue affects ksmbd in the Linux kernel: a deferred byte-range lock (SMB2_LOCK) uses async_work with a cancel_fn (smb2_remove_blocked_lock) and cancel_argv pointing to a file_lock. If a second SMB2_CANCEL arrives before release_async_work(), the cancel callback can run again on...

CVE-2026-53198: Use After Free

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...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The issue of using-after-free of a deferred filelock during SMB2CLOSE followed by SMB2CANCEL has been fixed. The commit f580d27e8928 “ksmbd: fix use-after-free of a deferred filelock on double SMB2CANCEL” addressed the iss...

CVE-2022-50302 lockd: set other missing fields when unlocking files

In the Linux kernel, the following vulnerability has been resolved: lockd: set other missing fields when unlocking files vfslockfile expects the struct filelock to be fully initialised by the caller. Re-exported NFSv3 has been seen to Oops if the flfile field is NULL...

Linux Kernel locks_remove_flock()本地竞争条件漏洞

BUGTRAQ ID: 33237 CVECAN ID: CVE-2008-4307 Linux Kernel是开放源码操作系统Linux所使用的内核。 RHEL4/5内核处理POSIX锁定时fcntl调用可能与关闭相同文件描述符出现竞争，本地攻击者可以利用这个漏洞导致拒绝服务或获得权限提升。 fcntl以如下方式获得POSIX锁定： sysfcntl fget dofcntl fcntlsetlk fput if!count fput locksremoveflock fcntlsetlk调用可能阻塞很长时间，允许同一进程中的其他线程关闭文件描述符： sysclose filpclos...