Weakness (CWE)
CWE-667: Improper Locking
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.
How to prevent it (1 mitigation)
-
Implementation
Use industry standard APIs to implement locking mechanism.
Source: MITRE CWE-667
121 results · Clear filters · Feed
-
Medium 6.8
Module Manager loaders leave the manager mutex held when a module preamble's sizes overflow, blocking every later module operation
In Eclipse ThreadX versions 6.0.1 through 6.5.2.202603, the Module Manager loaders return an overflow error without releasing the Module Manager mutex when a module preamble declares a data or stack size that overflows the allocation arithmetic. Loading such …
-
Medium 5.9
Kernel: local_bh imbalance in seg6_input_core() drop path (incomplete fix for cve-2026-46099)
A flaw was found in Red Hat Enterprise Linux 9 kernel builds. An incomplete backport of the CVE-2026-46099 fix in RHEL 9.6 through 9.10 left a local_bh imbalance in seg6_input_core(), where the drop path returns with bottom halves still disabled. This can lea…
-
Medium 6.7
A improper locking vulnerability in Fortinet FortiOS 8.0.0, FortiOS 7.6.4 through 7.6.6 may allow an unauthenticated at…
-
Medium 6.5
DBI versions before 1.656 for Perl hang on a later open of a DBD::DBM table because a failed open_data does not release the table's lock
DBI versions before 1.656 for Perl hang on a later open of a DBD::DBM table because a failed open_data does not release the table's lock. open_data creates the table's lock file and takes an exclusive flock on it for a CREATE, before the checks that can croak…
-
Medium 5.1
IBM i is Affected by a Denial of Service in Digital Certificate Manager
IBM i 7.3, 7.4, 7.5, and 7.6 is vulnerable to a denial of service to Digital Certificate Manager (DCM) for System TLS using applications attempting to create secure network connections. A bad actor could use this to prevent a service from starting or cause it…
-
Medium 6.5
Nezha 1.8.0 before 2.3.13 Denial of Service via Notification Mutex Deadlock
Nezha Dashboard from 1.8.0 before 2.3.13 contains an improper locking vulnerability where a non-deferred mutex unlock leaks on a nil-map panic path. Any authenticated non-admin member can issue four notification API calls to permanently deadlock the alerting …
-
Medium 5.5
NVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel module where a user could cause improper l…
-
Medium 5.5
Ghidra before 12.1.4 Denial of Service via Unreleased Lock in OptionsDB
Ghidra before 12.1.4 fails to validate the TYPE_COL byte in OptionsDB.createUnregisteredOption(), causing an ArrayIndexOutOfBoundsException that leaves domain objects permanently locked. Attackers can craft a malicious program database file that, when importe…
-
Medium 6.5
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains…
-
Medium 5.9
OpenTelemetry-Go: Unsynchronized baggage map can panic under concurrent access
OpenTelemetry-Go is the Go implementation of OpenTelemetry. From version 0.11.0 through 1.44.0, the OpenTracing bridge's bridgeSpan contains an unsynchronized extraBaggageItems map which can cause a panic. Because Go maps are not safe for concurrent read/writ…
-
Medium 6.5
domctl lock open to abuse
[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To create and manage guests, domctl operations are used by the control domain, a possible Xenstore domain, or by a domain controll…
-
Medium 5.3
domctl lock open to abuse
[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To create and manage guests, domctl operations are used by the control domain, a possible Xenstore domain, or by a domain controll…
-
Medium 6.5
NVIDIA Display Driver for Windows and Linux contains a vulnerability where an attacker could leak held driver locks. A …
-
Medium 5.8
Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability
Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerabilit…
-
Medium 6.0
Pterodactyl's improper resource locking allows raced queries to create more resources than alloted
Pterodactyl is a free, open-source game server management panel. Pterodactyl implements rate limits that are applied to the total number of resources (e.g. databases, port allocations, or backups) that can exist for an individual server. These resource limits…
-
Medium 6.4
espressif/usb_host_hid Double-Free Race Condition in USB Host HID Device Close Path
Espressif ESP-IDF USB Host HID (Human Interface Device) Driver allows access to HID devices. Prior to 1.1.0, calls to hid_host_device_close() can free the same usb_transfer_t twice. The USB event callback and user code share the hid_iface_t state without lock…
-
Medium 5.3
ZwiiCMS < 13.7.00 Lock Persistence Authenticated DoS Against Administrative Pages
ZwiiCMS versions prior to 13.7.00 contain a denial-of-service vulnerability in multiple administrative endpoints due to improper authorization checks combined with flawed resource state management. When an authenticated low-privilege user requests an administ…
-
Medium 4.2
Cross-Shard Failovers May Lead to Partial Transaction Commit in MongoDB Server
A post-authentication flaw in the network two-phase commit protocol used for cross-shard transactions in MongoDB Server may lead to logical data inconsistencies under specific conditions which are not predictable and exist for a very short period of time. Thi…
-
Medium 6.6
In processLaunchBrowser of CommandParamsFactory.java, there is a possible browser interaction from the lockscreen due t…
-
Medium 5.9
BIG-IP HSB vulnerability
Under undisclosed traffic conditions along with conditions beyond the attacker's control, hardware systems with a High-Speed Bridge (HSB) may experience a lockup of the HSB. Note: Software versions which have reached End of Technical Support (EoTS) are not e…
-
Medium 5.5
net: phy: transfer phy_config_inband() locking responsibility to phylink
In the Linux kernel, the following vulnerability has been resolved: net: phy: transfer phy_config_inband() locking responsibility to phylink Problem description =================== Lockdep reports a possible circular locking dependency (AB/BA) between &pl->st…
-
Medium 5.5
mm/vmalloc, mm/kasan: respect gfp mask in kasan_populate_vmalloc()
In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc, mm/kasan: respect gfp mask in kasan_populate_vmalloc() kasan_populate_vmalloc() and its helpers ignore the caller's gfp_mask and always allocate memory using the hardcoded GFP_KER…
-
Medium 4.7
btrfs: fix subvolume deletion lockup caused by inodes xarray race
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix subvolume deletion lockup caused by inodes xarray race There is a race condition between inode eviction and inode caching that can cause a live struct btrfs_inode to be missing fro…
-
Medium 5.5
padata: Always leave BHs disabled when running ->parallel()
In the Linux kernel, the following vulnerability has been resolved: padata: Always leave BHs disabled when running ->parallel() A deadlock can happen when an overloaded system runs ->parallel() in the context of the current task: padata_do_parallel ->parallel…
-
Medium 5.5
btrfs: fix deadlock when aborting transaction during relocation with scrub
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock when aborting transaction during relocation with scrub Before relocating a block group we pause scrub, then do the relocation and then unpause scrub. The relocation proces…
-
Medium 5.5
led: qcom-lpg: Fix sleeping in atomic
In the Linux kernel, the following vulnerability has been resolved: led: qcom-lpg: Fix sleeping in atomic lpg_brighness_set() function can sleep, while led's brightness_set() callback must be non-blocking. Change LPG driver to use brightness_set_blocking() in…
-
Medium 5.5
net/mlx5: Fix lockdep assertion on sync reset unload event
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix lockdep assertion on sync reset unload event Fix lockdep assertion triggered during sync reset unload event. When the sync reset flow is initiated using the devlink reload fw_ac…
-
Medium 5.5
drivers: staging: rtl8723bs: Fix locking in _rtw_join_timeout_handler()
In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8723bs: Fix locking in _rtw_join_timeout_handler() Commit 041879b12ddb ("drivers: staging: rtl8192bs: Fix deadlock in rtw_joinbss_event_prehandle()") besides fixing the d…
-
Medium 5.5
net/smc: fix deadlock triggered by cancel_delayed_work_syn()
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix deadlock triggered by cancel_delayed_work_syn() The following LOCKDEP was detected: Workqueue: events smc_lgr_free_work [smc] WARNING: possible circular locking dependency detect…
-
Medium 4.1
Improper locking for some Intel(R) TDX Module firmware before version 1.5.13 may allow a privileged user to potentially…
-
Medium 5.9
DoS in Zigbee device due to heavy traffic
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 the device to normal …
-
Medium 5.5
Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: unprocessed client request due to bytes to ignore
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.
-
Medium 5.7
Improper locking in the Intel(R) Integrated Connectivity I/O interface (CNVi) for some Intel(R) Core™ Ultra Processors …
-
Medium 5.5
nilfs2: fix deadlock in nilfs_count_free_blocks()
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix deadlock in nilfs_count_free_blocks() A semaphore deadlock can occur if nilfs_get_block() detects metadata corruption while locating data blocks and a superblock writeback occurs …
-
Medium 5.5CVE-2025-23134 Public exploit
ALSA: timer: Don't take register_mutex with copy_from/to_user()
In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Don't take register_mutex with copy_from/to_user() The infamous mmap_lock taken in copy_from/to_user() can be often problematic when it's called inside another mutex, as they mig…
-
Medium 5.5
bus: mhi: host: pci_generic: Use pci_try_reset_function() to avoid deadlock
In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: pci_generic: Use pci_try_reset_function() to avoid deadlock There are multiple places from where the recovery work gets scheduled asynchronously. Also, there are multiple plac…
-
Medium 5.5
drm/imagination: avoid deadlock on fence release
In the Linux kernel, the following vulnerability has been resolved: drm/imagination: avoid deadlock on fence release Do scheduler queue fence release processing on a workqueue, rather than in the release function itself. Fixes deadlock issues such as the foll…
-
Medium 5.5
NFS: fix nfs_release_folio() to not deadlock via kcompactd writeback
In the Linux kernel, the following vulnerability has been resolved: NFS: fix nfs_release_folio() to not deadlock via kcompactd writeback Add PF_KCOMPACTD flag and current_is_kcompactd() helper to check for it so nfs_release_folio() can skip calling nfs_wb_fol…
-
Medium 5.5
net: enetc: avoid deadlock in enetc_tx_onestep_tstamp()
In the Linux kernel, the following vulnerability has been resolved: net: enetc: avoid deadlock in enetc_tx_onestep_tstamp() This lockdep splat says it better than I could: ================================ WARNING: inconsistent lock state 6.2.0-rc2-07010-ga9b9…
-
Medium 5.5
Bluetooth: Fix possible deadlock in rfcomm_sk_state_change
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix possible deadlock in rfcomm_sk_state_change syzbot reports a possible deadlock in rfcomm_sk_state_change [1]. While rfcomm_sock_connect acquires the sk lock and waits for the r…