cve.bz

CWE-667: Improper Locking, page 5

Filter

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

What the weakness is: CWE-667 at MITRE. All weaknesses

Related attack patterns (CAPEC): 3
  • CAPEC-25 Forced Deadlock Likelihood: Low · Severity: High
  • CAPEC-26 Leveraging Race Conditions Likelihood: High · Severity: High
  • CAPEC-27 Leveraging Race Conditions via Symbolic Links Likelihood: Medium · Severity: High

The attack patterns MITRE's CAPEC relates to CWE-667, as MITRE names them. Credits.

Ask an AI about CWE-667

ChatGPTClaudeGoogle AI Mode

Show the promptExplain CWE-667: Improper Locking and how to prevent and detect it in code. Use https://cwe.mitre.org/data/definitions/667.html and https://cve.bz/cve/cwe/667?via=ask-ai-copy for recent CVEs with this weakness. Cite the sources.

Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this weakness's id and public links.

  1. 5.5CVE-2025-38643EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac() Callers of wdev_chandef() must hold the wiphy mutex. But the worker cfg80211_propagate_cac_done_wk() ne…

  2. 5.5CVE-2025-38551EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix recursived rtnl_lock() during probe() The deadlock appears in a stack trace like: virtnet_probe() rtnl_lock() virtio_config_changed_work() …

  3. 5.5CVE-2025-38520EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Don't call mmput from MMU notifier callback If the process is exiting, the mmput inside mmu notifier callback from compactd or fork or numa balancing could r…

  4. 5.5CVE-2025-38506EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: KVM: Allow CPU to reschedule while setting per-page memory attributes When running an SEV-SNP guest with a sufficiently large amount of memory (1TB+), the host can exper…

  5. 5.6CVE-2025-20044EPSS 0.1%

    Improper locking for some Intel(R) TDX Module firmware before version 1.5.13 may allow a privileged user to potentially enable escalation of privilege via local access.

  6. 5.9CVE-2025-1221EPSS 0.2%

    A Zigbee Radio Co-Processor (RCP), which is using SiLabs EmberZNet Zigbee stack, was unable to send messages to the host system (CPCd) due to heavy Zigbee traffic, resulting in a Denial of Service (DoS) attack, Only hard reset will bring t…

  7. 5.5CVE-2025-38491EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: mptcp: make fallback action and fallback decision atomic Syzkaller reported the following splat: WARNING: CPU: 1 PID: 7704 at net/mptcp/protocol.h:1223 __mptcp_do_fal…

  8. 5.5CVE-2025-38436EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: drm/scheduler: signal scheduled fence when kill job When an entity from application B is killed, drm_sched_entity_kill() removes all jobs belonging to that entity throug…

  9. 5.5CVE-2025-38404EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: usb: typec: displayport: Fix potential deadlock The deadlock can occur due to a recursive lock acquisition of `cros_typec_altmode_data::mutex`. The call chain is as foll…

  10. 5.5CVE-2025-38388EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Replace mutex with rwlock to avoid sleep in atomic context The current use of a mutex to protect the notifier hashtable accesses can lead to issues in…

  11. 5.5CVE-2025-38373EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Fix potential deadlock in MR deregistration The issue arises when kzalloc() is invoked while holding umem_mutex or any other lock acquired under umem_mutex. Thi…

  12. 5.5CVE-2025-38359EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: s390/mm: Fix in_atomic() handling in do_secure_storage_access() Kernel user spaces accesses to not exported pages in atomic context incorrectly try to resolve the page f…

  13. 5.5CVE-2025-38353EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix taking invalid lock on wedge If device wedges on e.g. GuC upload, the submission is not yet enabled and the state is not even initialized. Protect the wedge …

  14. 5.5CVE-2025-38335EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: Input: gpio-keys - fix a sleep while atomic with PREEMPT_RT When enabling PREEMPT_RT, the gpio_keys_irq_timer() callback runs in hard irq context, but the input_event() …

  15. 5.5CVE-2025-38311EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: iavf: get rid of the crit lock Get rid of the crit lock. That frees us from the error prone logic of try_locks. Thanks to netdev_lock() by Jakub it is now easy, and in …

  16. 5.5CVE-2025-38302EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: block: don't use submit_bio_noacct_nocheck in blk_zone_wplug_bio_work Bios queued up in the zone write plug have already gone through all all preparation in the submit_b…

  17. 5.5CVE-2025-38276EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: fs/dax: Fix "don't skip locked entries when scanning entries" Commit 6be3e21d25ca ("fs/dax: don't skip locked entries when scanning entries") introduced a new function, …

  18. 5.5CVE-2025-38268EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: move tcpm_queue_vdm_unlocked to asynchronous work A state check was previously added to tcpm_queue_vdm_unlocked to prevent a deadlock where the Display…

  19. 5.5CVE-2025-38244EPSS 0.3%

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential deadlock when reconnecting channels Fix cifs_signal_cifsd_for_reconnect() to take the correct lock order and prevent the following deadlock fr…

  20. 5.5CVE-2025-38241EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: mm/shmem, swap: fix softlockup with mTHP swapin Following softlockup can be easily reproduced on my test machine with: echo always > /sys/kernel/mm/transparent_hugepage…

  21. 5.5CVE-2025-38150EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: af_packet: move notifier's packet_dev_mc out of rcu critical section Syzkaller reports the following issue: BUG: sleeping function called from invalid context at kerne…

  22. 5.5CVE-2025-38114EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: e1000: Move cancel_work_sync to avoid deadlock Previously, e1000_down called cancel_work_sync for the e1000 reset task (via e1000_down_and_stop), which takes RTNL. As r…

  23. 5.5CVE-2025-38094EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: net: cadence: macb: Fix a possible deadlock in macb_halt_tx. There is a situation where after THALT is set high, TGO stays high as well. Because jiffies are never update…

  24. 5.5CVE-2022-50225EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: riscv:uprobe fix SR_SPIE set/clear handling In riscv the process of uprobe going to clear spie before exec the origin insn,and set spie after that.But When access the pa…

  25. 5.5CVE-2022-50174EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: net: hinic: avoid kernel hung in hinic_get_stats64() When using hinic device as a bond slave device, and reading device stats of master bond device, the kernel may hung.…

  26. 5.5CVE-2022-50173EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Fix global state lock backoff We need to grab the lock after the early return for !hwpipe case. Otherwise, we could have hit contention yet still returned …

  27. 5.5CVE-2022-50166EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: When HCI work queue is drained, only queue chained work The HCI command, event, and data packet processing workqueue is drained to avoid deadlock in commit 76…

  28. 5.5CVE-2022-50149EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: driver core: fix potential deadlock in __driver_attach In __driver_attach function, There are also AA deadlock problem, like the commit b232b02bf3c2 ("driver core: fix d…

  29. 5.5CVE-2022-50116EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: fix deadlock and link starvation in outgoing data path The current implementation queues up new control and user packets as needed and processes this queue d…

  30. 5.5CVE-2022-50053EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: iavf: Fix reset error handling Do not call iavf_close in iavf_reset_task error handling. Doing so can lead to double call of napi_disable, which can lead to deadlock the…

  31. 5.5CVE-2022-50045EPSS 0.1%

    In the Linux kernel, the following vulnerability has been resolved: powerpc/pci: Fix get_phb_number() locking The recent change to get_phb_number() causes a DEBUG_ATOMIC_SLEEP warning on some systems: BUG: sleeping function called fro…

  32. 5.5CVE-2022-49998EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix locking in rxrpc's sendmsg Fix three bugs in the rxrpc's sendmsg implementation: (1) rxrpc_new_client_call() should release the socket lock when returning …

  33. 5.5CVE-2022-49986EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Remove WQ_MEM_RECLAIM from storvsc_error_wq storvsc_error_wq workqueue should not be marked as WQ_MEM_RECLAIM as it doesn't need to make forward progress …

  34. 5.5CVE-2022-49943EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: USB: gadget: Fix obscure lockdep violation for udc_mutex A recent commit expanding the scope of the udc_lock mutex in the gadget core managed to cause an obscure and sli…

  35. 5.5CVE-2025-38058EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: __legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock ... or we risk stealing final mntput from sync umount - raising mnt_count after umount(2) has ve…

  36. 5.5CVE-2025-49178EPSS 0.2%

    A flaw was found in the X server's request handling. Non-zero 'bytes to ignore' in a client's request can cause the server to skip processing another client's request, potentially leading to a denial of service.

  37. 5.5CVE-2025-37997EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix region locking in hash types Region locking introduced in v5.6-rc4 contained three macros to handle the region locks: ahash_bucket_start(), ahash_b…

  38. 5.5CVE-2025-37970EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: iio: imu: st_lsm6dsx: fix possible lockup in st_lsm6dsx_read_fifo Prevent st_lsm6dsx_read_fifo from falling in an infinite loop in case pattern_len is equal to zero and …

  39. 5.5CVE-2025-37969EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: iio: imu: st_lsm6dsx: fix possible lockup in st_lsm6dsx_read_tagged_fifo Prevent st_lsm6dsx_read_tagged_fifo from falling in an infinite loop in case pattern_len is equa…

  40. 5.5CVE-2025-37968EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: iio: light: opt3001: fix deadlock due to concurrent flag access The threaded IRQ function in this driver is reading the flag twice: once to lock a mutex and once to unlo…

  41. 5.5CVE-2025-37967EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: displayport: Fix deadlock This patch introduces the ucsi_con_mutex_lock / ucsi_con_mutex_unlock functions to the UCSI driver. ucsi_con_mutex_lock ensur…

  42. 5.5CVE-2025-37940EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: ftrace: Add cond_resched() to ftrace_graph_set_hash() When the kernel contains a large number of functions that can be traced, the loop in ftrace_graph_set_hash() may ta…

  43. 5.5CVE-2025-37907EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Fix locking order in ivpu_job_submit Fix deadlock in job submission and abort handling. When a thread aborts currently executing jobs due to a fault, it firs…

  44. 5.3CVE-2025-20047EPSS 0.2%

    Improper locking in the Intel(R) Integrated Connectivity I/O interface (CNVi) for some Intel(R) Core™ Ultra Processors may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

  45. 5.5CVE-2025-37884EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: bpf: Fix deadlock between rcu_tasks_trace and event_mutex. Fix the following deadlock: CPU A _free_event() perf_kprobe_destroy() mutex_lock(&event_mutex) per…

  46. 5.5CVE-2025-37880EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: um: work around sched_yield not yielding in time-travel mode sched_yield by a userspace may not actually cause scheduling in time-travel mode as no time has passed. In t…

  47. 5.5CVE-2025-37868EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: drm/xe/userptr: fix notifier vs folio deadlock User is reporting what smells like notifier vs folio deadlock, where migrate_pages_batch() on core kernel side is holding …

  48. 5.5CVE-2025-37848EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Fix PM related deadlocks in MS IOCTLs Prevent runtime resume/suspend while MS IOCTLs are in progress. Failed suspend will call ivpu_ms_cleanup() that would t…

  49. 5.5CVE-2025-37847EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Fix deadlock in ivpu_ms_cleanup() Fix deadlock in ivpu_ms_cleanup() by preventing runtime resume after file_priv->ms_lock is acquired. During a failure in r…

  50. 5.5CVE-2025-37843EPSS 0.2%

    In the Linux kernel, the following vulnerability has been resolved: PCI: pciehp: Avoid unnecessary device replacement check Hot-removal of nested PCI hotplug ports suffers from a long-standing race condition which can lead to a deadlock:…