CVE-2023-53356 (GCVE-0-2023-53356)

Vulnerability from cvelistv5 – Published: 2025-09-17 14:56 – Updated: 2026-01-14 18:43
VLAI?
Title
usb: gadget: u_serial: Add null pointer check in gserial_suspend
Summary
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.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: aba3a8d01d623a5efef48ab8e78752d58d4c90c3 , < 2788a3553f7497075653210b42e2aeb6ba95e28e (git)
Affected: aba3a8d01d623a5efef48ab8e78752d58d4c90c3 , < a8ea7ed644cbf6314b5b0136b5398754b549fb8f (git)
Affected: aba3a8d01d623a5efef48ab8e78752d58d4c90c3 , < e60a827ac074ce6bd58305fe5a86afab5fce6a04 (git)
Affected: aba3a8d01d623a5efef48ab8e78752d58d4c90c3 , < 374447e3367767156405bedd230c5d391f4b7962 (git)
Affected: aba3a8d01d623a5efef48ab8e78752d58d4c90c3 , < 2f6ecb89fe8feb2b60a53325b0eeb9866d88909a (git)
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    Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 5.10.188 , ≤ 5.10.* (semver)
Unaffected: 5.15.121 , ≤ 5.15.* (semver)
Unaffected: 6.1.39 , ≤ 6.1.* (semver)
Unaffected: 6.4.4 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.