CVE-2026-53085

The CVE-2026-53085 issue affects the Linux kernel BPF subsystem where the open-coded task_vma iterator reads task->mm locklessly and uses mmap_read_trylock() without taking an mm reference, risking use-after-free if the task exits concurrently. The patch reads task->mm with a trylock on all...

CVE-2026-53037

CVE-2026-53037 affects the Linux kernel with a deadlock in HID reset handling when a USB HID device is paired with a storage/UAS component. The issue arises because hid_pre_reset() and hid_post_reset() may perform memory allocations that touch IO, risking deadlock, so the patch switches allocatio...

CVE-2026-53037 HID: usbhid: fix deadlock in hid_post_reset()

In the Linux kernel, the following vulnerability has been resolved: HID: usbhid: fix deadlock in hidpostreset You can build a USB device that includes a HID component and a storage or UAS component. The components can be reset only together. That means that hidprereset and hidpostreset are in the...

CVE-2026-53037 HID: usbhid: fix deadlock in hid_post_reset()

In the Linux kernel, the following vulnerability has been resolved: HID: usbhid: fix deadlock in hidpostreset You can build a USB device that includes a HID component and a storage or UAS component. The components can be reset only together. That means that hidprereset and hidpostreset are in the...

CVE-2026-53035 bpf, sockmap: Fix af_unix iter deadlock

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix afunix iter deadlock bpfiterunixseqshow may deadlock when locksockfast takes the fast path and the iter prog attempts to update a sockmap. Which ends up spinning at sockmapupdateelem's bhlocksock: WARNING:...

CVE-2026-53035 bpf, sockmap: Fix af_unix iter deadlock

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix afunix iter deadlock bpfiterunixseqshow may deadlock when locksockfast takes the fast path and the iter prog attempts to update a sockmap. Which ends up spinning at sockmapupdateelem's bhlocksock: WARNING:...

CVE-2026-52946 fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

CVE-2026-52946

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mptcp: avoid deadlock on fallback while reinjecting Jakub reported a MPTCP deadlock at the time of fallback: WARNING: possible recursive locking detected 6.18.0-rc7-virtme 1 Not tainted -------------------------------------------...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: block: Use RCU in blkmqunquiescetagset instead of set-taglistlock. The blkmqadd,delqueuetagset functions add and remove queues from the tagset. These functions ensure that the tagset and queues are marked as shared when two or...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: gfs2: Prevent recursive memory reclamation The new inode function returns a new inode with inode-imapping-gfpmask set to GFPHIGHUSERMOVABLE. This value includes the GFPFS flag, allowing allocations in that address space to...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: schedext: A potential deadlock has been fixed in deferredirqworkfn. For PREEMPTRT=y kernels, deferredirqworkfn is executed in the per-cpu irqwork/ task context, and not in disable-irq. If the rq returned by containerof is the...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: The can: mcp251x device has a bug where a deadlock can occur in the error path of the mcp251xopen function. The mcp251xopen function calls freeirq in its error path, with the mpclock mutex being held. However, if an interrupt has...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: Fuse: Fix for the deadlock caused by reclaimeduring. The commit e26ee4efbc79 “Fuse: Allocate ff-releaseargs only if release is needed” avoids allocating ff-releaseargs if the server does not implement open. However, in doing so,...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: procfs: Avoid fetching the build ID while holding the VMA lock. Fix the PROCMAPQUERY to fetch the optional build ID only after releasing the mmaplock or the per-VMA lock, whichever was used to lock the VMA, to prevent deadlock...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: spi: spidev: fixed the lock inversion between spilock and buflock. The spidev driver previously used two mutexes, spilock and buflock, but their acquisition was done in different orders depending on the code path: - write/read:...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: The code for radeonfenceprocess has been removed in issignaled, preventing deadlocks. The attempt to advance the queue when checking whether the fence is signaled has been eliminated. This prevents deadlocks. The...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: net: usb: r8152: fix resume reset deadlock The rtl8152 function can trigger a device reset during a reset process, which potentially leads to a deadlock. DPM device timeout after 10 seconds; 15 seconds until panic Call trace:...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed a deadlock in waitcurrenttrans due to an ignored transaction type When waitcurrenttrans is called during starttransaction, it currently waits for a blocked transaction without considering whether the given transactio...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: flexproportions: making fpropnewperiod safe from hardirq issues. Bernd reported a deadlock issue in the flexible proportions code, which essentially complained about the following race conditions: runtimersoftirq – we’re in a...