CVE-2025-21820 tty: xilinx_uartps: split sysrq handling

In the Linux kernel, the following vulnerability has been resolved: tty: xilinxuartps: split sysrq handling lockdep detects the following circular locking dependency: CPU 0 CPU 1 ========================== ============================ cdnsuartisr printk uartportlockport consolelock...

CVE-2025-21820

CVE-2025-21820 affects the Linux kernel tty/xilinx_uartps driver. A deadlock could occur due to a circular lock dependency between uart_port_lock and console_lock when handling sysrq. The fix splits sysrq handling into two parts: using a prepare step under the port lock and deferring actual handl...

CVE-2025-21817 block: mark GFP_NOIO around sysfs ->store()

In the Linux kernel, the following vulnerability has been resolved: block: mark GFPNOIO around sysfs -store sysfs -store is called with queue freezed, meantime we have several -store callbacksupdatenrrequests, wbt, scheduler to allocate memory with GFPKERNEL which may run into direct reclaim code...

CVE-2025-21817

The CVE-2025-21817 entry concerns the Linux kernel block subsystem: GFP_NOIO is now required around sysfs ->store() to prevent potential deadlock when sysfs->store callbacks allocate memory via GFP_KERNEL during direct reclaim. This vulnerability vector arises from GFP_KERNEL allocations ta...

CVE-2025-21817 block: mark GFP_NOIO around sysfs ->store()

In the Linux kernel, the following vulnerability has been resolved: block: mark GFPNOIO around sysfs -store sysfs -store is called with queue freezed, meantime we have several -store callbacksupdatenrrequests, wbt, scheduler to allocate memory with GFPKERNEL which may run into direct reclaim code...

CVE-2025-21809 rxrpc, afs: Fix peer hash locking vs RCU callback

In the Linux kernel, the following vulnerability has been resolved: rxrpc, afs: Fix peer hash locking vs RCU callback In its address list, afs now retains pointers to and refs on one or more rxrpcpeer objects. The address list is freed under RCU and at this time, it puts the refs on those peers...

CVE-2025-21809 rxrpc, afs: Fix peer hash locking vs RCU callback

In the Linux kernel, the following vulnerability has been resolved: rxrpc, afs: Fix peer hash locking vs RCU callback In its address list, afs now retains pointers to and refs on one or more rxrpcpeer objects. The address list is freed under RCU and at this time, it puts the refs on those peers...

CVE-2025-21809

Technical details for CVE-2025-21809 are not publicly available in the provided connected documents; monitor for official advisories or vendor updates for affected products, impact, and fixes.

CVE-2025-21809 rxrpc, afs: Fix peer hash locking vs RCU callback

In the Linux kernel, the following vulnerability has been resolved: rxrpc, afs: Fix peer hash locking vs RCU callback In its address list, afs now retains pointers to and refs on one or more rxrpcpeer objects. The address list is freed under RCU and at this time, it puts the refs on those peers...

CVE-2025-21807 block: fix queue freeze vs limits lock order in sysfs store methods

In the Linux kernel, the following vulnerability has been resolved: block: fix queue freeze vs limits lock order in sysfs store methods queueattrstore always freezes a device queue before calling the attribute store operation. For attributes that control queue limits, the store operation will als...

CVE-2025-21807

CVE-2025-21807 (Linux kernel) affects the block subsystem. queue_attr_store() previously freezes the device queue before invoking the attribute store operation. For attributes controlling queue limits, the store could lock queue limits via queue_limits_start_update(), creating an ABBA deadlock if...

CVE-2025-21807 block: fix queue freeze vs limits lock order in sysfs store methods

In the Linux kernel, the following vulnerability has been resolved: block: fix queue freeze vs limits lock order in sysfs store methods queueattrstore always freezes a device queue before calling the attribute store operation. For attributes that control queue limits, the store operation will als...

CVE-2024-58042 rhashtable: Fix potential deadlock by moving schedule_work outside lock

In the Linux kernel, the following vulnerability has been resolved: rhashtable: Fix potential deadlock by moving schedulework outside lock Move the hash table growth check and work scheduling outside the rht lock to prevent a possible circular locking dependency. The original implementation could...

CVE-2024-58042 rhashtable: Fix potential deadlock by moving schedule_work outside lock

In the Linux kernel, the following vulnerability has been resolved: rhashtable: Fix potential deadlock by moving schedulework outside lock Move the hash table growth check and work scheduling outside the rht lock to prevent a possible circular locking dependency. The original implementation could...

CVE-2024-58042

CVE-2024-58042 relates to the Linux kernel and fixes a potential deadlock in rhashtable growth logic. The original implementation could trigger a deadlock chain involving nested locks between the rhashtable bucket, rq lock, and dsq lock. The fix moves the hash table growth check and work scheduli...

CVE-2024-58042 rhashtable: Fix potential deadlock by moving schedule_work outside lock

In the Linux kernel, the following vulnerability has been resolved: rhashtable: Fix potential deadlock by moving schedulework outside lock Move the hash table growth check and work scheduling outside the rht lock to prevent a possible circular locking dependency. The original implementation could...

CVE-2024-58042

In the Linux kernel, the following vulnerability has been resolved: rhashtable: Fix potential deadlock by moving schedulework outside lock Move the hash table growth check and work scheduling outside the rht lock to prevent a possible circular locking dependency. The original implementation could...

deadlock potential with VT-d and legacy PCI device pass-through

ISSUE DESCRIPTION When setting up interrupt remapping for legacy PCI-X devices, including PCI-X bridges, a lookup of the upstream bridge is required. This lookup, itself involving acquiring of a lock, is done in a context where acquiring that lock is unsafe. This can lead to a deadlock. IMPACT Th...

SUSE CVE-2022-49079

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: traverse devices under chunkmutex in btrfscanactivatezone btrfscanactivatezone can be called with the devicelistmutex already held, which will lead to a deadlock: insertdevextents // Takes devicelistmutex -...

SUSE CVE-2022-49123

In the Linux kernel, the following vulnerability has been resolved: ath11k: Fix frames flush failure caused by deadlock We are seeing below warnings: kernel: 25393.301506 ath11kpci 0000:01:00.0: failed to flush mgmt transmit queue 0 kernel: 25398.421509 ath11kpci 0000:01:00.0: failed to flush mgm...