AZL-91287 CVE-2026-54906 affecting package rubygem-concurrent-ruby for versions less than 1.3.7-1

concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReadWriteLockreleasewritelock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can...

CVE-2026-54906

concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReadWriteLockreleasewritelock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can...

CVE-2026-53024

In the Linux kernel, the following vulnerability has been resolved: greybus: raw: fix use-after-free if write is called after disconnect If a user writes to the chardev after disconnect has been called, the kernel panics with the following trace with CONFIGINITONFREEDEFAULTON=y: BUG: kernel NULL...

CVE-2026-54906

concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReadWriteLockreleasewritelock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can...

CVE-2026-53116

In the Linux kernel, the following vulnerability has been resolved: s390/ap: use generic driveroverride infrastructure When the AP masks are updated via apmaskstore or aqmaskstore, apbusrevisebindings is called after apattrmutex has been released. This calls aprevisereserved, which accesses the...

CVE-2026-53024

Summary: CVE-2026-53024 affects the Linux kernel Greybus raw subsystem. A use-after-free can occur when a user writes to a chardev after disconnect, because gb_connection_destroy frees the connection object during disconnect and a subsequent write may access that freed object, potentially trigger...

CVE-2026-53020 um: Fix potential race condition in TLB sync

In the Linux kernel, the following vulnerability has been resolved: um: Fix potential race condition in TLB sync During the TLB sync, we need to traverse and modify the page table, so we should hold the page table lock. Since full SMP support for threads within the same process is still missing,...

CVE-2026-54906

concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::ReadWriteLockreleasewritelock does not verify that the calling thread acquired the write lock. Any thread with access to the lock object can release an active write lock held by another thread. A second writer can...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: The issue related to synchronization in amdgpudmabufMoveNotify has been fixed. Invalidating a dmabuf will affect other users of the shared BO. In the scenario where Process A moves the BO, it needs to inform Process B...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: scsi: imm: Fixed a use-after-free bug caused by unfinished delayed work. The delayed work item “immtq” is initialized in immattach and scheduled for processing via immqueuecommand. When the IMM parallel port SCSI host adapter is...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: Fix memleak in nfcllcpsenduiframe. syzbot reported various memory leaks related to NFC, struct nfcllcpsock, skbuff, nfcdev, etc. 0 The leading log hinted that nfcllcpsenduiframe failed to allocate skb due to sockerrors...

CVE-2026-52925

In the Linux kernel, the following vulnerability has been resolved: vrf: Fix a potential NPD when removing a port from a VRF RCU readers that identified a net device as a VRF port using netifisl3slave assume that a subsequent call to netdevmasterupperdevgetrcu will return a VRF device. They then...

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...

CVE-2026-52925

In the Linux kernel, the following vulnerability has been resolved: vrf: Fix a potential NPD when removing a port from a VRF RCU readers that identified a net device as a VRF port using netifisl3slave assume that a subsequent call to netdevmasterupperdevgetrcu will return a VRF device. They then...

UBUNTU-CVE-2026-52925

In the Linux kernel, the following vulnerability has been resolved: vrf: Fix a potential NPD when removing a port from a VRF RCU readers that identified a net device as a VRF port using netifisl3slave assume that a subsequent call to netdevmasterupperdevgetrcu will return a VRF device. They then...

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...

CVE-2026-52930

In the Linux kernel, the following vulnerability has been resolved: ipc/shm: serialize orphan cleanup with shmnattch updates shmdestroyorphaned walks the shm idr under shmidsns.rwsem, but that does not serialize all fields tested by shmmaydestroy. In particular, shmnattch is updated while holding...

CVE-2026-52925

CVE-2026-52925 : In the Linux kernel, a VRF port removal could lead to a NULL pointer dereference due to readers assuming a VRF master provides l3mdev operations. The fix adds RCU synchronization after clearing IFF_L3MDEV_SLAVE, and skips it when removing a device from a VRF during deletion or wh...

CVE-2026-52925

In the Linux kernel, the following vulnerability has been resolved: vrf: Fix a potential NPD when removing a port from a VRF RCU readers that identified a net device as a VRF port using netifisl3slave assume that a subsequent call to netdevmasterupperdevgetrcu will return a VRF device. They then...

CVE-2026-52925 vrf: Fix a potential NPD when removing a port from a VRF

In the Linux kernel, the following vulnerability has been resolved: vrf: Fix a potential NPD when removing a port from a VRF RCU readers that identified a net device as a VRF port using netifisl3slave assume that a subsequent call to netdevmasterupperdevgetrcu will return a VRF device. They then...