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...

CVE-2026-54905

CVE-2026-54905 affects the concurrent-ruby library, specifically Concurrent::ReentrantReadWriteLock. Before version 1.3.7, after a thread acquires the read lock 32,768 times, the local read count overflows into the WRITE_LOCK_HELD bit, causing try_write_lock to treat the thread as if it holds a w...

Concurrent Ruby: `ReentrantReadWriteLock` read-count overflow grants a write lock without exclusivity

Summary Concurrent::ReentrantReadWriteLock can incorrectly grant a write lock after one thread acquires the read lock 32,768 times. The lock stores a thread's local read and write hold counts in one integer. The low 15 bits are used for the read hold count, and bit 15 is used as WRITELOCKHELD...

CVE-2026-44608

NLnet Labs Unbound 1.14.0 up to and including version 1.25.0 has a locking inconsistency vulnerability that when certain conditions are met multi-threaded, RPZ XFR reload, RPZ zone with 'rpz-nsip'/'rpz-nsdname' triggers it could result in heap use-after-free and eventual crash. An adversary can...

Astra Linux – Vulnerability in libvirt

A improper locking issue was detected in the virStoragePoolLookupByTargetPath API of libvirt. This issue occurs in the storagePoolLookupByTargetPath function, where a locked virStoragePoolObj object is not properly released in case of an ACL permission failure. Clients connecting to the read-writ...

UBUNTU-CVE-2023-53855

In the Linux kernel, the following vulnerability has been resolved: net: dsa: ocelot: call dsatag8021qunregister under rtnllock on driver remove When the tagging protocol in current use is "ocelot-8021q" and we unbind the driver, we see this splat: $ echo '0000:00:00.2'...

CVE-2023-53558 rcu-tasks: Avoid pr_info() with spin lock in cblist_init_generic()

In the Linux kernel, the following vulnerability has been resolved: rcu-tasks: Avoid prinfo with spin lock in cblistinitgeneric prinfo is called with rtp-cbsgbllock spin lock locked. Because prinfo calls printk that might sleep, this will result in BUG like below: 0.206455 cblistinitgeneric:...

Linux Distros Unpatched Vulnerability : CVE-2025-21944

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix bug on trap in smb2lock If lock count is greater than 1, flags could be old value. It should be checked with flags of smblock, not flags. It will cau...

PT-2025-14312

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to the version containing commit b15c87263a69 Description A vulnerability in the Linux kernel has been resolved, related to the handling of hwpoisoned pages. The issue arises when the folio lock is not held before...

AZL-53900 CVE-2024-53042 affecting package kernel for versions less than 6.6.64.2-1

In the Linux kernel, the following vulnerability has been resolved: ipv4: iptunnel: Fix suspicious RCU usage warning in iptunnelinitflow There are code paths from which the function is called without holding the RCU read lock, resulting in a suspicious RCU usage warning 1. Fix by using...

UBUNTU-CVE-2024-40966

In the Linux kernel, the following vulnerability has been resolved: tty: add the option to have a tty reject a new ldisc ... and use it to limit the virtual terminals to just NTTY. They are kind of special, and in particular, the "conwrite" routine violates the "writes cannot sleep" rule that som...

DEBIAN-CVE-2024-36919

In the Linux kernel, the following vulnerability has been resolved: scsi: bnx2fc: Remove spinlockbh while releasing resources after upload The session resources are used by FW and driver when session is offloaded, once session is uploaded these resources are not used. The lock is not required as...

SUSE CVE-2010-0623

The futexlockpi function in kernel/futex.c in the Linux kernel before 2.6.33-rc7 does not properly manage a certain reference count, which allows local users to cause a denial of service OOPS via vectors involving an unmount of an ext3 filesystem...

Red Hat libvirt 安全漏洞

Red Hat libvirt is a Linux API for implementing Linux virtualization features from Red Hat, Inc. It supports a variety of Hypervisors, including Xen and KVM, as well as QEMU and a number of virtual products for other operating systems. A security vulnerability exists in the libvirt nwfilter drive...

PT-2016-7543

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.8.3 Description The issue allows local users to cause a denial of service, resulting in an fdatasync failure and system hang, by utilizing the vfs syscall group in the trinity program. This is related to a page...