CVE-2026-43499

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in removewaiter removewaiter is used by the slowlock paths, but it is also used for proxy-lock rollback in rtmutexstartproxylock when invoked from futexrequeue. In the latter case...

CVE-2026-43499

The CVE-2026-43499 issue concerns the Linux kernel rtmutex path where remove_waiter() operated on current during dequeue in rt_mutex_start_proxy_lock() via futex_requeue(). This caused: (1) rbtree dequeue without waiter::task::pi_lock, (2) waiter task pi_blocked_on not cleared (dangling pointer, ...

Setup PHP: Command Injection in Repository-Derived PHP Version Resolution

Summary A command injection vulnerability was identified in shivammathur/setup-php when the action resolves the PHP version from repository-controlled files and uses that value while generating the platform setup script. In affected versions, setup-php may read the PHP version from: - .php-versio...

kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache

A flaw was found in the Linux kernel's NFSv4.0 server nfsd. A remote, unauthenticated attacker can exploit this heap overflow vulnerability in the NFSv4.0 LOCK replay cache. By using two cooperating NFSv4.0 clients, where one sets a lock with a large owner string and another requests a conflictin...

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...

CVE-2026-44390

NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability when handling replies with very large RRsets that Unbound needs to perform name compression for. Malicious upstream responses with very large RRsets with records that don't share a suffix above the root can cause Unbound to...

CVE-2026-42923 Degradation of service with unbounded NSEC3 hash calculations

NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability in the DNSSEC validator where the code path to consult the negative cache for DS records does not take into account the limit on NSEC3 hash calculations introduced in 1.19.1. This leads to degradation of service during the...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: zsmalloc: Fixed races between asynchronous zspage free operations and page migration. The asynchronous zspage free worker attempts to lock the entire page list of a zspage, without protecting against page migration. Since page...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: fs: dlm: fixed use-after-free in midcomms commit While working on processing dlm messages in the softirq context, I encountered the following KASAN use-after-free warnings: 151.760477...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Driver core: Fixed a deadlock in deviceattach. In the deviceattach function, the lock-holding logic is as follows: … deviceattach devicelockdev // Get the lock for dev asyncscheduledevdeviceattachasynchelper, dev; // Function cal...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Drivers: tty: serial: Fixed a deadlock in sa1100settermios There is a deadlock in sa1100settermios, as shown below: Thread 1 | Thread 2 | sa1100enablems sa1100settermios | modtimer spinlockirqsave //1 | Wait for a while ... |...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In the isotprcv function, there is a potential issue where race conditions may occur during CAN frame reception. When receiving a CAN frame, the current code logic does not take into account processes that are not actually runnin...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: USB: core: Fixed a race condition by not overwriting udev-descriptor in hubportinit. Syzbot reported an out-of-bounds read in sysfs.c:readdescriptors: BUG: KASAN: Out-of-bounds reading in readdescriptors+0x263/0x280,...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: erofs: Fixed the issue where xasretry was missing in the fscache mode. The xarray iteration only holds the RCU read lock; therefore, an XARETRYENTRY may be encountered if a process modifies the xarray concurrently. This would lea...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: rustbinder: The spinlock call in rustshrinkfreepage has been removed. When porting Rust Binder to version 6.18, I overlooked including the commit fb56fdf8b9a2 “mm/listlru: split the lock to per-cgroup scope” in the consideration...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: BTRFS: Do not attempt to replace the rwsem on a task that already holds it. By running fstests btrfs/011 with MKFSOPTIONS="-O rst" to force the use of the RAID stripe-tree, we obtain the following error from lockdep: BTRFS inf...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: E-Switch, pairs only capable devices The use of devcom for OFFLOADS pairing is only possible on devices that support LAG. Filters are based on the device’s lag capabilities. This fix addresses an issue where...

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

In the Linux kernel, the following vulnerabilities have been resolved: xen/events: The close evtchn operation is performed after mapping cleanup is completed. shutdownpirq and startuppirq do not take the irqmappingupdatelock, as they cannot do so due to lock inversion. Both functions are called...

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

In the Linux kernel, the following vulnerability has been resolved: soc: fsl: qbman: Use raw spinlock for cgrlock The smpcallfunction always runs its callback in a hard IRQ context, even when running under PREEMPTRT, where spinlocks may be in a sleeping state. Therefore, we need to use a raw...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb: Client: Fixed a potential Use-after-Free UAF in smb2isvalidoplockbreak. Skipped sessions that are being torn down status == SESEXITING to avoid UAF...