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CVE-2026-63927

usb: dwc2: Fix use after free in debug code

HIGH
7.8
CVSS Score
Published: July 19, 2026 at 02:55 PM UTC
Updated: October 27, 2026 at 01:01 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: usb: dwc2: Fix use after free in debug code We're not allowed to dereference "urb" after calling usb_hcd_giveback_urb() so save the urb->status ahead of time.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
3.10 ≤ v < 5.10.2595.11 ≤ v < 5.15.2105.16 ≤ v < 6.1.1766.13 ≤ v < 6.18.356.19 ≤ v < 7.0.126.2 ≤ v < 6.6.1436.7 ≤ v < 6.12.933.107.17359d482eb4d3967cc8be354405ae6be6eaf732c
Vendor states this is fixed in 0584af4fe40fa5e254a05d69ce658746de641708 (fixed)
Vendor states this is fixed in 63b0dafa676aad4d0c3f01a61ad8e2990907660c (fixed)
Vendor states this is fixed in 6d0b79d1d1118145e48a68192b6d733e39387053 (fixed)
Vendor states this is fixed in 84ea928ed584756e59c6ac09736f12d1db95ded0 (fixed)
Vendor states this is fixed in 9ea06a3fbf9f16e0d98c52cb3b99642be15ec281 (fixed)
Vendor states this is fixed in 9fe1d84f7e2cf33634e8afb7f4b7f8de182dd913 (fixed)
Vendor states this is fixed in a15eeeceb94cbc04edef395e4d777ff554bdc27d (fixed)
Vendor states this is fixed in d5fc183ed614aeba6779cc992325be560f9a4451 (fixed)
Vendor states this is fixed in 3.10 (unaffected)
Vendor states this is fixed in 5.10.259 (unaffected)
Vendor states this is fixed in 5.15.210 (unaffected)
Vendor states this is fixed in 6.1.176 (unaffected)
Vendor states this is fixed in 6.12.93 (unaffected)
Vendor states this is fixed in 6.18.35 (unaffected)
Vendor states this is fixed in 6.6.143 (unaffected)
Vendor states this is fixed in 7.0.12 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

References (8)

Patch
Source: cverecord
https://git.kernel.org/stable/c/d5fc183ed614aeba6779cc992325be560f9a4451
Patch
Source: cverecord
https://git.kernel.org/stable/c/63b0dafa676aad4d0c3f01a61ad8e2990907660c
Patch
Source: cverecord
https://git.kernel.org/stable/c/9fe1d84f7e2cf33634e8afb7f4b7f8de182dd913
Patch
Source: cverecord
https://git.kernel.org/stable/c/0584af4fe40fa5e254a05d69ce658746de641708
Patch
Source: cverecord
https://git.kernel.org/stable/c/a15eeeceb94cbc04edef395e4d777ff554bdc27d
Patch
Source: cverecord
https://git.kernel.org/stable/c/84ea928ed584756e59c6ac09736f12d1db95ded0
Patch
Source: cverecord
https://git.kernel.org/stable/c/6d0b79d1d1118145e48a68192b6d733e39387053
Patch
Source: cverecord
https://git.kernel.org/stable/c/9ea06a3fbf9f16e0d98c52cb3b99642be15ec281

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusANALYZED
CWE
CWE-416

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