Weakness (CWE)
CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
How to prevent it (8 mitigations)
-
Architecture and Design
In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.
-
Architecture and Design
Use thread-safe capabilities such as the data access abstraction in Spring.
-
Architecture and Design
Minimize the usage of shared resources in order to remove as much complexity as possible from the control flow and to reduce the likelihood of unexpected conditions occurring.
Additionally, this will minimize the amount of synchronization necessary and may even help to reduce the likelihood of a denial of service where an attacker may be able to repeatedly trigger a critical section (CWE-400).
-
Implementation
When using multithreading and operating on shared variables, only use thread-safe functions.
-
Implementation
Use atomic operations on shared variables. Be wary of innocent-looking constructs such as "x++". This may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read, followed by a computation, followed by a write.
-
Implementation
Use a mutex if available, but be sure to avoid related weaknesses such as CWE-412.
-
Implementation
Avoid double-checked locking (CWE-609) and other implementation errors that arise when trying to avoid the overhead of synchronization.
-
Implementation
Disable interrupts or signals over critical parts of the code, but also make sure that the code does not go into a large or infinite loop.
Source: MITRE CWE-362
1,600 results · Feed
-
Medium 4.2
Race condition in the JavaScript: GC component
Race condition in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
-
Medium 6.6
OpenSift: Race-prone local persistence could cause state corruption/loss
OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI. Versions 1.1.2-alpha and below, use non-atomic and insufficiently synchronized local JSON persistence flows, potentially causing concurrent operations to l…
-
High 7.0
emp3r0r Affected by Concurrent Map Access DoS (panic/crash)
emp3r0r is a C2 designed by Linux users for Linux environments. Prior to version 3.21.2, multiple shared maps are accessed without consistent synchronization across goroutines. Under concurrent activity, Go runtime can trigger `fatal error: concurrent map rea…
-
High 8.8
smb: client: split cached_fid bitfields to avoid shared-byte RMW races
In the Linux kernel, the following vulnerability has been resolved: smb: client: split cached_fid bitfields to avoid shared-byte RMW races is_open, has_lease and on_list are stored in the same bitfield byte in struct cached_fid but are updated in different co…
-
Unscored —
scsi: qla2xxx: Delay module unload while fabric scan in progress
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Delay module unload while fabric scan in progress System crash seen during load/unload test in a loop. [105954.384919] RBP: ffff914589838dc0 R08: 0000000000000000 R09: 00000000…
-
Unscored —
md: suspend array while updating raid_disks via sysfs
In the Linux kernel, the following vulnerability has been resolved: md: suspend array while updating raid_disks via sysfs In raid1_reshape(), freeze_array() is called before modifying the r1bio memory pool (conf->r1bio_pool) and conf->raid_disks, and unfreeze…
-
Unscored —
bonding: annotate data-races around slave->last_rx
In the Linux kernel, the following vulnerability has been resolved: bonding: annotate data-races around slave->last_rx slave->last_rx and slave->target_last_arp_rx[...] can be read and written locklessly. Add READ_ONCE() and WRITE_ONCE() annotations. syzbot r…
-
Unscored —
ice: Fix PTP NULL pointer dereference during VSI rebuild
In the Linux kernel, the following vulnerability has been resolved: ice: Fix PTP NULL pointer dereference during VSI rebuild Fix race condition where PTP periodic work runs while VSI is being rebuilt, accessing NULL vsi->rx_rings. The sequence was: 1. ice_ptp…
-
Unscored —
spi: tegra210-quad: Protect curr_xfer in tegra_qspi_combined_seq_xfer
In the Linux kernel, the following vulnerability has been resolved: spi: tegra210-quad: Protect curr_xfer in tegra_qspi_combined_seq_xfer The curr_xfer field is read by the IRQ handler without holding the lock to check if a transfer is in progress. When clear…
-
High 7.8
ALSA: aloop: Fix racy access at PCM trigger
In the Linux kernel, the following vulnerability has been resolved: ALSA: aloop: Fix racy access at PCM trigger The PCM trigger callback of aloop driver tries to check the PCM state and stop the stream of the tied substream in the corresponding cable. Since b…
-
High 7.5
nvmet: fix race in nvmet_bio_done() leading to NULL pointer dereference
In the Linux kernel, the following vulnerability has been resolved: nvmet: fix race in nvmet_bio_done() leading to NULL pointer dereference There is a race condition in nvmet_bio_done() that can cause a NULL pointer dereference in blk_cgroup_bio_start(): 1. n…
-
Unscored —
Bluetooth: hci_uart: fix null-ptr-deref in hci_uart_write_work
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_uart: fix null-ptr-deref in hci_uart_write_work hci_uart_set_proto() sets HCI_UART_PROTO_INIT before calling hci_uart_register_dev(), which calls proto->open() to initialize hu…
-
Unscored —
netdevsim: fix a race issue related to the operation on bpf_bound_progs list
In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix a race issue related to the operation on bpf_bound_progs list The netdevsim driver lacks a protection mechanism for operations on the bpf_bound_progs list. When the nsim_bpf_cr…
-
Unscored —
ipv6: annotate data-race in ndisc_router_discovery()
In the Linux kernel, the following vulnerability has been resolved: ipv6: annotate data-race in ndisc_router_discovery() syzbot found that ndisc_router_discovery() could read and write in6_dev->ra_mtu without holding a lock [1] This looks fine, IFLA_INET6_RA_…
-
Unscored —
mISDN: annotate data-race around dev->work
In the Linux kernel, the following vulnerability has been resolved: mISDN: annotate data-race around dev->work dev->work can re read locklessly in mISDN_read() and mISDN_poll(). Add READ_ONCE()/WRITE_ONCE() annotations. BUG: KCSAN: data-race in mISDN_ioctl / …
-
Unscored —
l2tp: avoid one data-race in l2tp_tunnel_del_work()
In the Linux kernel, the following vulnerability has been resolved: l2tp: avoid one data-race in l2tp_tunnel_del_work() We should read sk->sk_socket only when dealing with kernel sockets. syzbot reported the following data-race: BUG: KCSAN: data-race in l2tp_…
-
High 7.0
A race condition was addressed with improved state handling. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Seq…
-
High 7.5
Race in DevTools in Google Chrome prior to 145.0.7632.45 allowed a remote attacker who convinced a user to engage in sp…
-
High 8.1
A race condition vulnerability exists in MedusaJS Medusa v2.12.2 and earlier in the registerUsage() function of the pro…
-
High 7.8
Windows Kernel Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Kernel allows an authorized attacker to elevate privileges locally.
-
High 7.0
Windows Subsystem for Linux Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
-
High 7.0
Windows Connected Devices Platform Service Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected Devices Platform Service allows an authorized attacker to elevate privileges locally.
-
Medium 5.3
Race condition for some TDX Module before version tdx1.5 within Ring 0: Hypervisor may allow a denial of service. Autho…
-
High 7.9
Race condition for some TDX Module within Ring 0: Hypervisor may allow an escalation of privilege. System software adve…
-
High 8.4
UAF concurrency vulnerability in the graphics module. Impact: Successful exploitation of this vulnerability may affect …
-
High 7.1
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. From version 1.10.0 to 1.25.3, cross-client response data leak when a single McpServer/Server and transport instance is reused across multiple client connections…
-
Unscored —
scsi: core: Wake up the error handler when final completions race against each other
In the Linux kernel, the following vulnerability has been resolved: scsi: core: Wake up the error handler when final completions race against each other The fragile ordering between marking commands completed or failed so that the error handler only wakes whe…
-
High 7.8
ipvlan: Make the addrs_lock be per port
In the Linux kernel, the following vulnerability has been resolved: ipvlan: Make the addrs_lock be per port Make the addrs_lock be per port, not per ipvlan dev. Initial code seems to be written in the assumption, that any address change must occur under RTNL.…
-
Unscored —
leds: led-class: Only Add LED to leds_list when it is fully ready
In the Linux kernel, the following vulnerability has been resolved: leds: led-class: Only Add LED to leds_list when it is fully ready Before this change the LED was added to leds_list before led_init_core() gets called adding it the list before led_classdev.s…
-
Unscored —
migrate: correct lock ordering for hugetlb file folios
In the Linux kernel, the following vulnerability has been resolved: migrate: correct lock ordering for hugetlb file folios Syzbot has found a deadlock (analyzed by Lance Yang): 1) Task (5749): Holds folio_lock, then tries to acquire i_mmap_rwsem(read lock). 2…
-
Unscored —
regmap: Fix race condition in hwspinlock irqsave routine
In the Linux kernel, the following vulnerability has been resolved: regmap: Fix race condition in hwspinlock irqsave routine Previously, the address of the shared member '&map->spinlock_flags' was passed directly to 'hwspin_lock_timeout_irqsave'. This creates…
-
High 7.8
rxrpc: Fix recvmsg() unconditional requeue
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix recvmsg() unconditional requeue If rxrpc_recvmsg() fails because MSG_DONTWAIT was specified but the call at the front of the recvmsg queue already has its mutex locked, it requeues…
-
Unscored —
btrfs: fix deadlock in wait_current_trans() due to ignored transaction type
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock in wait_current_trans() due to ignored transaction type When wait_current_trans() is called during start_transaction(), it currently waits for a blocked transaction withou…
-
Medium 5.9
BIG-IP Advanced WAF and ASM vulnerability
When a BIG-IP Advanced WAF or ASM security policy is configured on a virtual server, undisclosed requests along with conditions beyond the attacker's control can cause the bd process to terminate. Note: Software versions which have reached End of Technical S…
-
Medium 6.3
jsPDF has a Shared State Race Condition in addJS Plugin
jsPDF is a library to generate PDFs in JavaScript. Prior to 4.1.0, the addJS method in the jspdf Node.js build utilizes a shared module-scoped variable (text) to store JavaScript content. When used in a concurrent environment (e.g., a Node.js web server), thi…
-
Critical 9.1
btrfs: always detect conflicting inodes when logging inode refs
In the Linux kernel, the following vulnerability has been resolved: btrfs: always detect conflicting inodes when logging inode refs After rename exchanging (either with the rename exchange operation or regular renames in multiple non-atomic steps) two inodes …
-
Unscored —
can: j1939: make j1939_session_activate() fail if device is no longer registered
In the Linux kernel, the following vulnerability has been resolved: can: j1939: make j1939_session_activate() fail if device is no longer registered syzbot is still reporting unregister_netdevice: waiting for vcan0 to become free. Usage count = 2 even after c…
-
High —
oneshot has potential Use After Free when used asynchronously
There is a race condition that can lead to a use-after-free if a `oneshot::Receiver` is polled but then dropped instead of polled to completion. This could happen if the receiver future was cancelled while receiving, for example by being wrapped in a timeout …
-
High 7.8
nfsd: provide locking for v4_end_grace
In the Linux kernel, the following vulnerability has been resolved: nfsd: provide locking for v4_end_grace Writing to v4_end_grace can race with server shutdown and result in memory being accessed after it was freed - reclaim_str_hashtbl in particularly. We c…
-
High 7.5
Anritsu ShockLine SCPI Race Condition Remote Code Execution Vulnerability
Anritsu ShockLine SCPI Race Condition Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Anritsu ShockLine. Authentication is not required to exploit this vulnerabil…