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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-36893

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

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: Check for port partner validity before consuming it typec_register_partner() 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 : run_state_machine+0x1bc8/0x1c08 lr : run_state_machine+0x1b90/0x1c08 .. Call trace: run_state_machine+0x1bc8/0x1c08 tcpm_state_machine_work+0x94/0xe4 kthread_worker_fn+0x118/0x328 kthread+0x1d0/0x23c ret_from_fork+0x10/0x20 To prevent the crash, check for port->partner validity before derefencing it in all the call sites.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 31220bd89c22a18478f52fcd8069e8e2adb8f4f2 to < 2a07e6f0ad8a6e504a3912cfe8dc859b7d0740a5affected
  • 9b7cd3fe01f0d03cf5820b351a6be2a6e0a6da6f to < d56d2ca03cc22123fd7626967d096d8661324e57affected
  • c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416 to < 789326cafbd1f67f424436b6bc8bdb887a364637affected
  • c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416 to < fc2b655cb6dd2b381f1f284989721002e39b6b77affected
  • c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416 to < ae11f04b452b5205536e1c02d31f8045eba249ddaffected
  • 2897b36d2482b84f35e659989d5cb4501fb31ccdaffected
  • cbcf107780aecf51aba68488044a416d95060b6daffected
  • 5.15.132 to < 5.15.168affected
  • 6.1.53 to < 6.1.91affected
  • 6.4.16 to < 6.5affected
  • 6.5.3 to < 6.6affected

Linux Linux

Default version status: affected

  • 6.6affected
  • 0 to < 6.6unaffected
  • 5.15.168 to ≤ 5.15.*unaffected
  • 6.1.91 to ≤ 6.1.*unaffected
  • 6.6.31 to ≤ 6.6.*unaffected
  • 6.8.10 to ≤ 6.8.*unaffected
  • 6.9 to ≤ *unaffected

References