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CVE-2025-37809usb: typec: class: Fix NULL pointer access

Description

In the Linux kernel, the following vulnerability has been resolved: usb: typec: class: Fix NULL pointer access Concurrent calls to typec_partner_unlink_device can lead to a NULL pointer dereference. This patch adds a mutex to protect USB device pointers and prevent this issue. The same mutex protects both the device pointers and the partner device registration.

Timeline

  1. ID reserved

    By Linux

  2. · 22 days later

    Published

  3. · 18 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2025-37809, by who scored it
Scored byCVSSScoreVector
NVDNVD · Analyzed3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.20% · top 90% of all CVEs (12 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Affected products

  • Linux · Linux

    • affected 59de2a56d127890cc610f3896d5fc31887c54ac2 – < de7c24febd21413ea8f49f61b36338b676c02852
    • affected 59de2a56d127890cc610f3896d5fc31887c54ac2 – < 1fdde62411fe65640e69bc55ea027d5b7b2f0093
    • affected 59de2a56d127890cc610f3896d5fc31887c54ac2 – < ec27386de23a511008c53aa2f3434ad180a3ca9a

  • Linux · Linux

    • affected 6.7
    • unaffected < 6.7
    • unaffected 6.12.26 – ≤ 6.12.*
    • unaffected 6.14.5 – ≤ 6.14.*
    • unaffected 6.15 – ≤ *

References

References3

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .