Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: gfs2: Fix for fiemap page faults In gfs2fiemap, we call iomapfiemap while holding the inode lock. This can lead to recursive locking if the fiemap buffer is memory-mapped to the same inode, and accessing it triggers a page...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: cifs: Fixed the locking usage for tcon fields. Previously, we used cifstcpseslock to protect many objects that weren’t just server, ses, or tcon lists. Later, we introduced srvlock, seslock, and tclock to protect fields within...

UBUNTU-CVE-2026-52918

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: serialize acceptq access btsockpoll walks the accept queue without synchronization, while child teardown can unlink the same socket and drop its last reference. The unsynchronized accept queue walk has existed since th...

EUVD-2026-38721

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: serialize acceptq access btsockpoll walks the accept queue without synchronization, while child teardown can unlink the same socket and drop its last reference. The unsynchronized accept queue walk has existed since th...

CVE-2026-52918 Bluetooth: serialize accept_q access

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: serialize acceptq access btsockpoll walks the accept queue without synchronization, while child teardown can unlink the same socket and drop its last reference. The unsynchronized accept queue walk has existed since th...

CVE-2026-52917 sctp: diag: reject stale associations in dump_one path

In the Linux kernel, the following vulnerability has been resolved: sctp: diag: reject stale associations in dumpone path The SCTP exact sockdiag lookup can hold a transport reference, block on locksocksk, and then resume after sctpassociationfree has marked the association dead and freed its bin...

PT-2026-52012

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A Use-After-Free UAF issue exists in the vdpa component. When a driver is probed through the driver attach function, the bus match callback is executed without holding the device lock...

PT-2026-51928

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A null pointer dereference exists in the Linux kernel's BPF sockmap implementation. The issue occurs because unix stream connect updates the sk state variable to TCP ESTABLISHED before...

PT-2026-51929

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A deadlock can occur in the Linux kernel within the bpf and sockmap components. The issue arises when the bpf iter unix seq show function is executed and lock sock fast takes the fast pa...

PT-2026-52009

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A Use-After-Free UAF issue exists in the fsl-mc bus. When a driver is probed via the driver attach function, the bus match callback is executed without holding the device lock. This lead...

PT-2026-51948

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the drm/msm component where a wrong argument caused objects involved in UNMAP operations to not be consistently locked. This behavior specifically affects non- NO SHAR...

PT-2026-51943

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the gfs2 module, the gfs2 logd function calls log flushing functions gfs2 ail1 start, gfs2 ail1 wait, and gfs2 ail1 empty without holding the sdp-sd log flush lock lock. These functio...

PT-2026-52011

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A Use-After-Free UAF issue exists in the s390/cio component. When a driver is probed via the driver attach function, the bus match callback is executed without holding the device lock...

JLSEC-2026-620 WebSocket reader data race in auto-PONG/CLOSE-echo handling in HTTP.jl

Description The WebSocket reader task processed incoming frames by calling wsonincomingdata! without holding ws.sendlock. That function is not a pure parser: its auto-PONG and CLOSE-echo paths push! onto the shared ws.codec.outgoingframes vector, while application send/ping/pong/close paths mutat...

kernel: netfilter: ctnetlink: ensure safe access to master conntrack

A flaw was found in the netfilter: ctnetlink component of the Linux kernel. This vulnerability occurs due to insufficient locking when accessing the master conntrack object, allowing it to become invalid while still being referenced. A local attacker could potentially exploit this race condition,...

kernel: netfilter: ctnetlink: ensure safe access to master conntrack

A flaw was found in the netfilter: ctnetlink component of the Linux kernel. This vulnerability occurs due to insufficient locking when accessing the master conntrack object, allowing it to become invalid while still being referenced. A local attacker could potentially exploit this race condition,...

kernel: netfilter: ctnetlink: ensure safe access to master conntrack

A flaw was found in the netfilter: ctnetlink component of the Linux kernel. This vulnerability occurs due to insufficient locking when accessing the master conntrack object, allowing it to become invalid while still being referenced. A local attacker could potentially exploit this race condition,...

Improper Locking

Overview Affected versions of this package are vulnerable to Improper Locking in the releasewritelock and releasereadlock functions. An attacker can disrupt synchronization guarantees and exploit data races or cause denial of service by invoking these functions from unauthorized threads or withou...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: HID: appletb-kbd: running inactivity autodim from workqueues The autodim code in hid-appletb-kbd uses backlightdevice-opslock via backlightdevicesetbrightness - mutexlock, in two different atomic contexts: appletbinactivitytim...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hciconn: fixed a potential UAF in createbigsync. Added a check for hciconnvalid in createbigsync to detect stale connections before proceeding with the BIG creation process. Handle the -ECANCELED result in...