Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 31220bd89c22a18478f52fcd8069e8e2adb8f4f2 before 2a07e6f0ad8a6e504a3912cfe8dc859b7d0740a5; affected 9b7cd3fe01f0d03cf5820b351a6be2a6e0a6da6f before d56d2ca03cc22123fd7626967d096d8661324e57; affected c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416 before 789326cafbd1f67f424436b6bc8bdb887a364637; affected c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416 before fc2b655cb6dd2b381f1f284989721002e39b6b77; affected c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416 before ae11f04b452b5205536e1c02d31f8045eba249dd; affected 2897b36d2482b84f35e659989d5cb4501fb31ccd; affected cbcf107780aecf51aba68488044a416d95060b6d; affected 5.15.132 before 5.15.168; affected 6.1.53 before 6.1.91; affected 6.4.16 before 6.5; affected 6.5.3 before 6.6 |
| Linux / Linux | affected 6.6; unaffected 0 before 6.6; unaffected 5.15.168 through 5.15.*; unaffected 6.1.91 through 6.1.*; unaffected 6.6.31 through 6.6.*; unaffected 6.8.10 through 6.8.*; unaffected 6.9 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2a07e6f0ad8a6e504a3912cfe8dc859b7d0740a5
- https://git.kernel.org/stable/c/d56d2ca03cc22123fd7626967d096d8661324e57
- https://git.kernel.org/stable/c/789326cafbd1f67f424436b6bc8bdb887a364637
- https://git.kernel.org/stable/c/fc2b655cb6dd2b381f1f284989721002e39b6b77
- https://git.kernel.org/stable/c/ae11f04b452b5205536e1c02d31f8045eba249dd
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.