CVE-2026-98256 signal: Prevent exec() race

In the Linux kernel, the following vulnerability has been resolved: signal: Prevent exec race Hyunwoo debugged the following KASAN UAF splat: BUG: KASAN: slab-use-after-free in sendsignallocked+0xb27/0xba0 Write of size 8 at addr ffff888007ed80c8 by task poc/79 ... Call Trace:...

CVE-2026-98256

A use-after-free (UAF) vulnerability exists in the Linux kernel signal handling logic. The issue occurs during a non-leader exec() call where a SIGEV_THREAD_ID timer's struct pid points to a thread that has already called execve(). Due to a non-atomic list_del_init() operation, a signal queue ent...

EUVD-2026-93184

In the Linux kernel, the following vulnerability has been resolved: signal: Prevent exec race Hyunwoo debugged the following KASAN UAF splat: BUG: KASAN: slab-use-after-free in sendsignallocked+0xb27/0xba0 Write of size 8 at addr ffff888007ed80c8 by task poc/79 ... Call Trace:...

CVE-2026-98253 RDMA/ucma: Serialize join and leave on copy_to_user failure

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

CVE-2026-98253

The Linux kernel is vulnerable to a race condition in the RDMA/ucma component during concurrent JOIN_MCAST calls. The root cause is that ucma_process_join() previously released ctx->mutex after a successful join, allowing two concurrent calls with the same address to insert a second CMA entry....

CVE-2026-98253 RDMA/ucma: Serialize join and leave on copy_to_user failure

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

EUVD-2026-93181

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

CVE-2026-98251 openvswitch: avoid reallocating confirmed conntrack labels

In the Linux kernel, the following vulnerability has been resolved: openvswitch: avoid reallocating confirmed conntrack labels ovsctgetconnlabels adds the labels extension when a conntrack entry does not have one. Confirmed conntracks can be read locklessly, so adding an extension may reallocate...

EUVD-2026-93179

In the Linux kernel, the following vulnerability has been resolved: openvswitch: avoid reallocating confirmed conntrack labels ovsctgetconnlabels adds the labels extension when a conntrack entry does not have one. Confirmed conntracks can be read locklessly, so adding an extension may reallocate...

CVE-2026-98251

The Linux kernel is vulnerable in the openvswitch component due to an issue in ovs_ct_get_conn_labels(). The function incorrectly adds a labels extension to confirmed conntracks that lack one. Because confirmed conntracks can be read locklessly, adding this extension may trigger a reallocation an...

EUVD-2026-93174

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Serialize local codec list cleanup hcidevclosesync clears hdev-localcodecs after releasing hdev-lock. Codec list additions and both traversals in scosockgetsockopt use that lock, but the close path does not. A...

CVE-2026-98246

A use-after-free vulnerability exists in the Linux kernel Bluetooth stack within the hci_sync component. The hci_dev_close_sync() function clears the hdev->local_codecs list after releasing the hdev->lock, whereas additions and traversals in sco_sock_getsockopt() correctly acquire this lock...

CVE-2026-98246 Bluetooth: hci_sync: Serialize local codec list cleanup

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Serialize local codec list cleanup hcidevclosesync clears hdev-localcodecs after releasing hdev-lock. Codec list additions and both traversals in scosockgetsockopt use that lock, but the close path does not. A...

CVE-2026-98246 Bluetooth: hci_sync: Serialize local codec list cleanup

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Serialize local codec list cleanup hcidevclosesync clears hdev-localcodecs after releasing hdev-lock. Codec list additions and both traversals in scosockgetsockopt use that lock, but the close path does not. A...

CVE-2026-98245

The Linux kernel contains a vulnerability in the btrfs filesystem. The function mark_block_group_to_copy() iterates over the commit root while skip_locking is set to true. This allows a concurrent transaction commit to swap and free the commit root during iteration, resulting in a use-after-free ...

CVE-2026-98244

In the Linux kernel, the following vulnerability has been resolved: btrfs: clear free space tree creation state on rebuild failure btrfsrebuildfreespacetree sets BTRFSFSCREATINGFREESPACETREE before rebuilding the free space tree. Several error paths return without clearing this flag. The...

CVE-2026-98245 btrfs: take commit root semaphore when iterating in mark_block_group_to_copy()

In the Linux kernel, the following vulnerability has been resolved: btrfs: take commit root semaphore when iterating in markblockgrouptocopy markblockgrouptocopy iterates over the commit root with skiplocking=true. A concurrent transaction commit can swap and free the commit root during iteration...

EUVD-2026-93173

In the Linux kernel, the following vulnerability has been resolved: btrfs: take commit root semaphore when iterating in markblockgrouptocopy markblockgrouptocopy iterates over the commit root with skiplocking=true. A concurrent transaction commit can swap and free the commit root during iteration...

CVE-2026-98245 btrfs: take commit root semaphore when iterating in mark_block_group_to_copy()

In the Linux kernel, the following vulnerability has been resolved: btrfs: take commit root semaphore when iterating in markblockgrouptocopy markblockgrouptocopy iterates over the commit root with skiplocking=true. A concurrent transaction commit can swap and free the commit root during iteration...

CVE-2026-98244 btrfs: clear free space tree creation state on rebuild failure

In the Linux kernel, the following vulnerability has been resolved: btrfs: clear free space tree creation state on rebuild failure btrfsrebuildfreespacetree sets BTRFSFSCREATINGFREESPACETREE before rebuilding the free space tree. Several error paths return without clearing this flag. The...