CVE-2026-23183 cgroup/dmem: fix NULL pointer dereference when setting max

In the Linux kernel, the following vulnerability has been resolved: cgroup/dmem: fix NULL pointer dereference when setting max An issue was triggered: BUG: kernel NULL pointer dereference, address: 0000000000000000 PF: supervisor read access in kernel mode PF: errorcode0x0000 - not-present page P...

CVE-2026-23183

CVE-2026-23183 affects the Linux kernel cgroup/dmem subsystem. The issue is a NULL pointer dereference when setting the max value, triggered by commands like echo test/region0 > dmem.max, which accesses an invalid region_name. Root cause per description is an insufficient validation after pars...

EUVD-2026-5857

In the Linux kernel, the following vulnerability has been resolved: cgroup/dmem: fix NULL pointer dereference when setting max An issue was triggered: BUG: kernel NULL pointer dereference, address: 0000000000000000 PF: supervisor read access in kernel mode PF: errorcode0x0000 - not-present page P...

CVE-2026-23183

In the Linux kernel, the following vulnerability has been resolved: cgroup/dmem: fix NULL pointer dereference when setting max An issue was triggered: BUG: kernel NULL pointer dereference, address: 0000000000000000 PF: supervisor read access in kernel mode PF: errorcode0x0000 - not-present page P...

CVE-2026-23183 cgroup/dmem: fix NULL pointer dereference when setting max

In the Linux kernel, the following vulnerability has been resolved: cgroup/dmem: fix NULL pointer dereference when setting max An issue was triggered: BUG: kernel NULL pointer dereference, address: 0000000000000000 PF: supervisor read access in kernel mode PF: errorcode0x0000 - not-present page P...

CVE-2026-23181 btrfs: sync read disk super and set block size

In the Linux kernel, the following vulnerability has been resolved: btrfs: sync read disk super and set block size When the user performs a btrfs mount, the block device is not set correctly. The user sets the block size of the block device to 0x4000 by executing the BLKBSZSET command. Since the...

CVE-2026-23181

In the Linux kernel, the following vulnerability has been resolved: btrfs: sync read disk super and set block size When the user performs a btrfs mount, the block device is not set correctly. The user sets the block size of the block device to 0x4000 by executing the BLKBSZSET command. Since the...

CVE-2026-23181

In CVE-2026-23181, the Linux kernel btrfs read path can trigger inconsistent folio ordering when a block size change via BLKBSZSET occurs after folio allocation during read cache operations, leading to a VM_BUG_ON_FOLIO assertion and a null pointer dereference in create_empty_buffers. The documen...

CVE-2026-23181 btrfs: sync read disk super and set block size

In the Linux kernel, the following vulnerability has been resolved: btrfs: sync read disk super and set block size When the user performs a btrfs mount, the block device is not set correctly. The user sets the block size of the block device to 0x4000 by executing the BLKBSZSET command. Since the...

CVE-2026-23166

In the Linux kernel, the following vulnerability has been resolved: ice: Fix NULL pointer dereference in icevsisetnapiqueues Add NULL pointer checks in icevsisetnapiqueues to prevent crashes during resume from suspend when ringsqidx-qvector is NULL. Tested adaptor: 60:00.0 Ethernet controller 020...

CVE-2026-23146

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: fix null-ptr-deref in hciuartwritework hciuartsetproto sets HCIUARTPROTOINIT before calling hciuartregisterdev, which calls proto-open to initialize hu-priv. However, if a TTY write wakeup occurs during this...

CVE-2026-23148

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix race in nvmetbiodone leading to NULL pointer dereference There is a race condition in nvmetbiodone that can cause a NULL pointer dereference in blkcgroupbiostart: 1. nvmetbiodone is called when a bio completes 2...

CVE-2026-23148

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix race in nvmetbiodone leading to NULL pointer dereference There is a race condition in nvmetbiodone that can cause a NULL pointer dereference in blkcgroupbiostart: 1. nvmetbiodone is called when a bio completes 2...

CVE-2026-23163

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix NULL pointer dereference in amdgpugmcfilterfaultsremove On APUs such as Raven and Renoir GC 9.1.0, 9.2.2, 9.3.0, the ih1 and ih2 interrupt ring buffers are not initialized. This is by design, as these secondary IH...

CVE-2026-23166

In the Linux kernel, the following vulnerability has been resolved: ice: Fix NULL pointer dereference in icevsisetnapiqueues Add NULL pointer checks in icevsisetnapiqueues to prevent crashes during resume from suspend when ringsqidx-qvector is NULL. Tested adaptor: 60:00.0 Ethernet controller 020...

CVE-2026-23146

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: fix null-ptr-deref in hciuartwritework hciuartsetproto sets HCIUARTPROTOINIT before calling hciuartregisterdev, which calls proto-open to initialize hu-priv. However, if a TTY write wakeup occurs during this...

CVE-2026-23137

In the Linux kernel, the following vulnerability has been resolved: of: unittest: Fix memory leak in unittestdataadd In unittestdataadd, if ofresolvephandles fails, the allocated unittestdata is not freed, leading to a memory leak. Fix this by using scope-based cleanup helper freekfree for...

CVE-2026-23173

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, delete flows only for existing peers When deleting TC steering flows, iterate only over actual devcom peers instead of assuming all possible ports exist. This avoids touching non-existent peers and ensures cleanup ...

UBUNTU-CVE-2026-23163

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix NULL pointer dereference in amdgpugmcfilterfaultsremove On APUs such as Raven and Renoir GC 9.1.0, 9.2.2, 9.3.0, the ih1 and ih2 interrupt ring buffers are not initialized. This is by design, as these secondary IH...

UBUNTU-CVE-2026-23146

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: fix null-ptr-deref in hciuartwritework hciuartsetproto sets HCIUARTPROTOINIT before calling hciuartregisterdev, which calls proto-open to initialize hu-priv. However, if a TTY write wakeup occurs during this...