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CVE-2023-52898
xhci: Fix null pointer dereference when host dies
Medium4.7EPSS 0.24%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: xhci: Fix null pointer dereference when host dies Make sure xhci_free_dev() and xhci_kill_endpoint_urbs() do not race and cause null pointer dereference when host suddenly dies. Usb core may call xhci_free_dev() which frees the xhci->devs[slot_id] virt device at the same time that xhci_kill_endpoint_urbs() tries to loop through all the device's endpoints, checking if there are any cancelled urbs left to give back. hold the xhci spinlock while freeing the virt device
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.7.
Weakness
Affected products
- affected 11ec7588a10d4bc2e1e385ac565d2166d375fba1 – < 6fac4b5cecb3928a0a81069aaa815a2edc8dd5a1
- affected 11ec7588a10d4bc2e1e385ac565d2166d375fba1 – < 133b902378e4acbd824c29dd0d48570ad596e368
- affected 11ec7588a10d4bc2e1e385ac565d2166d375fba1 – < 081105213ff6f661c114781d469233c7d0e09c2e
- affected 11ec7588a10d4bc2e1e385ac565d2166d375fba1 – < c462ac871f49753eca86bb960f573b993976a5ea
- affected 11ec7588a10d4bc2e1e385ac565d2166d375fba1 – < ea2ee5e9991caf74e0604f994c1831a5867055b2
- affected 11ec7588a10d4bc2e1e385ac565d2166d375fba1 – < a2bc47c43e70cf904b1af49f76d572326c08bca7
- affected 4.15
- unaffected < 4.15
- unaffected 4.19.271 – ≤ 4.19.*
- unaffected 5.4.230 – ≤ 5.4.*
- unaffected 5.10.165 – ≤ 5.10.*
- unaffected 5.15.90 – ≤ 5.15.*
- unaffected 6.1.8 – ≤ 6.1.*
- unaffected 6.2 – ≤ *
References (6)
- https://git.kernel.org/stable/c/6fac4b5cecb3928a0a81069aaa815a2edc8dd5a1 (opens in a new tab)
- https://git.kernel.org/stable/c/133b902378e4acbd824c29dd0d48570ad596e368 (opens in a new tab)
- https://git.kernel.org/stable/c/081105213ff6f661c114781d469233c7d0e09c2e (opens in a new tab)
- https://git.kernel.org/stable/c/c462ac871f49753eca86bb960f573b993976a5ea (opens in a new tab)
- https://git.kernel.org/stable/c/ea2ee5e9991caf74e0604f994c1831a5867055b2 (opens in a new tab)
- https://git.kernel.org/stable/c/a2bc47c43e70cf904b1af49f76d572326c08bca7 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-52898)Record last updated .