CVE-2026-74614— vsock/virtio: read virtqueues under worker locks
Quick assessment
Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在 Linux 内核中，已修复以下漏洞： vsock/virtio：在工作器锁的保护下读取 virtqueues 提交 bd50c5dc182b（“vsock/virtio：添加对设备挂起/恢复的支持”）导致在恢复过程中安装新的 virtqueues 时，*_run 标志从 false 变为 true。RX、TX 和事件工作器在未加锁的情况下先读取其 virtqueue，再检查对应的标志。因此，若在挂起和恢复之间被延迟的工作器可能会观察到新 virtqueue 的运行状态，但仍保留对已删除旧 virtqueue 的
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 17
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 762c251c7f5c4ee5bef71460c6e822ed293fd69f< 941329ce14c5f481223a10d1d4c8b57ea7f3048a |
affected |
bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c< 29dd10583bf9d2744cd84b862e4257c0a5699570 |
affected | ||
bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c< a1fb0c5b8a7c2753758aeced40971f99449dde0c |
affected | ||
bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c< eae099c764c7ebdb842eb1f638913e310bdd6513 |
affected | ||
bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c< bd43a7ec668be428265b3209eb43647aedcf720a |
affected | ||
bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c< 1cecb4202afdbeddcf29d59baf596ac6ab753f7f |
affected | ||
bd50c5dc182b0a52599f87b429f9a5a9cbfc9b1c< ebac8f6b1ef0e9278afe204b8692a7479988dace |
affected | ||
5.15.138< 5.15.216 |
affected | ||
| … +9 more rows | |||
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-74614
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
vsock/virtio: read virtqueues under worker locks
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
vsock/virtio: read virtqueues under worker locks
Commit bd50c5dc182b ("vsock/virtio: add support for device
suspend/resume") made the *_run flags transition from false to true when
restore installs replacement virtqueues. The RX, TX and event workers
read their virtqueue before locking and checking the corresponding flag,
so a worker delayed across freeze and restore can observe the replacement
queue's running state while retaining a pointer to the deleted queue.
Read each virtqueue under its mutex after checking the run flag, keeping
the pointer and state in the same queue generation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-74614
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-74614
请登录查看更多情报信息。
Patches & Fixes for CVE-2026-74614 (6)
Same Patch Batch · Linux · 2026-08-22 · 150 CVEs total
| CVE-2026-74705 | 10.0 CRITICAL | udp: fix potential use-after-free in tunnel segmentation |
| CVE-2026-74612 | 10.0 CRITICAL | veth: fix skb length accounting after XDP frag adjustment |
| CVE-2026-74669 | 9.8 CRITICAL | ipvs: clear IPv4 options after rebasing tunnel ICMP errors |
| CVE-2026-74628 | 9.8 CRITICAL | net/x25: fix use-after-free of the socket by its timers |
| CVE-2026-74608 | 9.8 CRITICAL | smb: client: Fix use-after-free in cifs_try_adding_channels() |
| CVE-2026-74662 | 9.8 CRITICAL | inet: frags: publish queues before arming timer |
| CVE-2026-74688 | 9.8 CRITICAL | sctp: clear control chunk transport if it is being removed |
| CVE-2026-74587 | 9.8 CRITICAL | sctp: fix use-after-free of cached ASCONF chunk |
| CVE-2026-74591 | 9.8 CRITICAL | mm/filemap: __filemap_add_folio() restore index before retrying |
| CVE-2026-74588 | 9.8 CRITICAL | sctp: keep chunk->transport in step with the list it is queued on |
| CVE-2026-74727 | 9.8 CRITICAL | ovpn: skip rehash for peers already removed from by_id |
| CVE-2026-74616 | 9.8 CRITICAL | xdp: reject clones that overrun skb_shared_info tailroom |
| CVE-2026-74730 | 9.8 CRITICAL | NFS: Pin the 'struct nfs_server' during a FREE_STATEID call |
| CVE-2026-74723 | 9.8 CRITICAL | btrfs: lzo: reject inline extents without valid headers |
| CVE-2026-74586 | 9.8 CRITICAL | sctp: clear new_transport when removing a peer |
| CVE-2026-74597 | 9.8 CRITICAL | ip6_tunnel: clear skb2->cb[] in ip6ip6_err() |
| CVE-2026-74611 | 9.8 CRITICAL | tls: rx: restore msg_iter before TLS 1.3 optimistic retry |
| CVE-2026-74617 | 9.8 CRITICAL | dibs: initialise dibs->lock in dibs_dev_alloc() |
| CVE-2026-74712 | 9.3 CRITICAL | vdpa/mlx5: Fix buffer length in create_direct_keys() |
| CVE-2026-74665 | 9.1 CRITICAL | net: fix skb length accounting after generic XDP frag adjustment |
Showing top 20 of 150 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
-
CVE-2026-74733
gpio: pca953x: fix pca953x_irq_bus_sync_unlock regmap lock -
CVE-2026-74732
drm/amd/display: Check for tg ops in dce110_set_avmute -
CVE-2026-74731
sched_ext: Skip sub-disable teardown for never-linked sub-sc -
CVE-2026-74730
NFS: Pin the 'struct nfs_server' during a FREE_STATEID call -
CVE-2026-74729
soc: aspeed: lpc-snoop: Fix usercopy overflow in snoop_file_
Same vendor: Linux
-
CVE-2026-74733
gpio: pca953x: fix pca953x_irq_bus_sync_unlock regmap lock -
CVE-2026-74732
drm/amd/display: Check for tg ops in dce110_set_avmute -
CVE-2026-74731
sched_ext: Skip sub-disable teardown for never-linked sub-sc -
CVE-2026-74730
NFS: Pin the 'struct nfs_server' during a FREE_STATEID call -
CVE-2026-74729
soc: aspeed: lpc-snoop: Fix usercopy overflow in snoop_file_
V. Comments for CVE-2026-74614
No comments yet