CVE-2026-63974CWE-400denial-of-service

CVE-2026-63974

High · published July 19, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
25.5
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close

Since hci_dev_close_sync() can now be called during the reset path, we

should also set HCI_CMD_DRAIN_WORKQUEUE. This avoids queuing timeouts

while the hdev workqueue is being drained.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00333 · 25.5th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-07-19T20:17Z
References (5)
https://git.kernel.org/stable/c/47330cc875b36a1cf7b3543cb2cf90a7c603ce0e · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/525daaea459fc215f432de1b8debbd9144bf97b0 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/60bceb9a4c693e68cc90ba4b2dfb9e000e8638ff · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7b81c1378b79c3143ca3fdb3d18ac0f01cbabb21 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9cebe4680bb9a72f80c6541eb24af06db7a1fbc9 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 19 JUL 14:55Z
    Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close
    cvelistv5