AZL-42465
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-42465.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-42465
- Upstream
- Published
- 2024-05-30T16:15:12Z
- Modified
- 2026-04-01T05:14:35.554407Z
- 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
- CVE-2024-36893 affecting package kernel for versions less than 6.6.35.1-4
- 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