CVE-2023-53356
usb: gadget: u_serial: Add null pointer check in gserial_suspend
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_serial: Add null pointer check in gserial_suspend Consider a case where gserial_disconnect has already cleared gser->ioport. And if gserial_suspend gets called afterwards, it will lead to accessing of gser->ioport and thus causing null pointer dereference. Avoid this by adding a null pointer check. Added a static spinlock to prevent gser->ioport from becoming null after the newly added null pointer check.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 8 months later
· 8 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.19% · top 91% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected aba3a8d01d623a5efef48ab8e78752d58d4c90c3 – < 2788a3553f7497075653210b42e2aeb6ba95e28e
- affected aba3a8d01d623a5efef48ab8e78752d58d4c90c3 – < a8ea7ed644cbf6314b5b0136b5398754b549fb8f
- affected aba3a8d01d623a5efef48ab8e78752d58d4c90c3 – < e60a827ac074ce6bd58305fe5a86afab5fce6a04
- affected aba3a8d01d623a5efef48ab8e78752d58d4c90c3 – < 374447e3367767156405bedd230c5d391f4b7962
- affected aba3a8d01d623a5efef48ab8e78752d58d4c90c3 – < 2f6ecb89fe8feb2b60a53325b0eeb9866d88909a
- affected 5.8
- unaffected < 5.8
- unaffected 5.10.188 – ≤ 5.10.*
- unaffected 5.15.121 – ≤ 5.15.*
- unaffected 6.1.39 – ≤ 6.1.*
- unaffected 6.4.4 – ≤ 6.4.*
- unaffected 6.5 – ≤ *
References (5)
- https://git.kernel.org/stable/c/2788a3553f7497075653210b42e2aeb6ba95e28e (opens in a new tab)
- https://git.kernel.org/stable/c/a8ea7ed644cbf6314b5b0136b5398754b549fb8f (opens in a new tab)
- https://git.kernel.org/stable/c/e60a827ac074ce6bd58305fe5a86afab5fce6a04 (opens in a new tab)
- https://git.kernel.org/stable/c/374447e3367767156405bedd230c5d391f4b7962 (opens in a new tab)
- https://git.kernel.org/stable/c/2f6ecb89fe8feb2b60a53325b0eeb9866d88909a (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-2023-53356)Record last updated .