Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2024-26934
Linux Linux — USB: core: Fix deadlock in usb_deauthorize_interface()
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .0019 8.1 —
AFFECTED
Product Versions Fixed
Linux 310d2b4124c073a2057ef9d952d4d938e9b1dfd9 – —
Linux 4.4 – 4.19.312
TIMELINE
Feb 19 Reserved by Linux
May 1 Published (CNA: Linux)
Oct 15 ENRICHED — CVE-2024-26934 (Linux). Received CVSS 7.8 and CPE data from NVD.
Description
In the Linux kernel, the following vulnerability has been resolved:
USB: core: Fix deadlock in usb_deauthorize_interface()
Among the attribute file callback routines in
drivers/usb/core/sysfs.c, the interface_authorized_store() function is
the only one which acquires a device lock on an ancestor device: It
calls usb_deauthorize_interface(), which locks the interface's parent
USB device.
The will lead to deadlock if another process already owns that lock
and tries to remove the interface, whether through a configuration
change or because the device has been disconnected. As part of the
removal procedure, device_del() waits for all ongoing sysfs attribute
callbacks to complete. But usb_deauthorize_interface() can't complete
until the device lock has been released, and the lock won't be
released until the removal has finished.
The mechanism provided by sysfs to prevent this kind of deadlock is
to use the sysfs_break_active_protection() function, which tells sysfs
not to wait for the attribute callback.
Reported-and-tested by: Yue Sun <samsun1006219@gmail.com>
Reported by: xingwei lee <xrivendell7@gmail.com>
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| February 19, 2024 | Reserved | Reserved by Linux |
| May 1, 2024 | Published | Published (CNA: Linux) |
| October 15, 2026 | ENRICHED | ENRICHED — CVE-2024-26934 (Linux). Received CVSS 7.8 and CPE data from NVD. |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 310d2b4124c073a2057ef9d952d4d938e9b1dfd9 | — |
| Linux | Linux | — | 4.4 | 4.19.312 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-26934 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.