CVE-2024-36893

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-36893
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-36893.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-36893
Downstream
Related
Published
2024-05-30T16:15:12Z
Modified
2025-08-09T20:01:27Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

usb: typec: tcpm: Check for port partner validity before consuming it

typecregisterpartner() does not guarantee partner registration to always succeed. In the event of failure, port->partner is set to the error value or NULL. Given that port->partner validity is not checked, this results in the following crash:

Unable to handle kernel NULL pointer dereference at virtual address xx pc : runstatemachine+0x1bc8/0x1c08 lr : runstatemachine+0x1b90/0x1c08 .. Call trace: runstatemachine+0x1bc8/0x1c08 tcpmstatemachinework+0x94/0xe4 kthreadworkerfn+0x118/0x328 kthread+0x1d0/0x23c retfrom_fork+0x10/0x20

To prevent the crash, check for port->partner validity before derefencing it in all the call sites.

References

Affected packages