Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_serial: Fix race condition in TTY wakeup A race condition occurs when gs_start_io() calls either gs_start_rx() or gs_start_tx(), as those functions briefly drop the port_lock for usb_ep_queue(). This allows gs_close() and gserial_disconnect() to clear port.tty and port_usb, respectively. Use the null-safe TTY Port helper function to wake up TTY. Example CPU1: CPU2: gserial_connect() // lock gs_close() // await lock gs_start_rx() // unlock usb_ep_queue() gs_close() // lock, reset port.tty and unlock gs_start_rx() // lock tty_wakeup() // NPE
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 35f95fd7f234d2b58803bab6f6ebd6bb988050a2 before 18d58a467ccf011078352d91b4d6a0108c7318e8; affected 35f95fd7f234d2b58803bab6f6ebd6bb988050a2 before d43657b59f36e88289a6066f15bc9a80df5014eb; affected 35f95fd7f234d2b58803bab6f6ebd6bb988050a2 before a5012673d49788f16bb4e375b002d7743eb642d9; affected 35f95fd7f234d2b58803bab6f6ebd6bb988050a2 before ee8d688e2ba558f3bb8ac225113740be5f335417; affected 35f95fd7f234d2b58803bab6f6ebd6bb988050a2 before c6eb4a05af3d0ba3bc4e8159287722fb9abc6359; affected 35f95fd7f234d2b58803bab6f6ebd6bb988050a2 before abf3620cba68e0e51e5c21054ce4f925f75b3661; affected 35f95fd7f234d2b58803bab6f6ebd6bb988050a2 before c8c80a3a35c2e3488409de2d5376ef7e662a2bf5; affected 35f95fd7f234d2b58803bab6f6ebd6bb988050a2 before c529c3730bd09115684644e26bf01ecbd7e2c2c9 |
| Linux / Linux | affected 3.5; unaffected 0 before 3.5; unaffected 5.4.296 through 5.4.*; unaffected 5.10.240 through 5.10.*; unaffected 5.15.189 through 5.15.*; unaffected 6.1.146 through 6.1.*; unaffected 6.6.99 through 6.6.*; unaffected 6.12.39 through 6.12.*; unaffected 6.15.7 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/18d58a467ccf011078352d91b4d6a0108c7318e8
- https://git.kernel.org/stable/c/d43657b59f36e88289a6066f15bc9a80df5014eb
- https://git.kernel.org/stable/c/a5012673d49788f16bb4e375b002d7743eb642d9
- https://git.kernel.org/stable/c/ee8d688e2ba558f3bb8ac225113740be5f335417
- https://git.kernel.org/stable/c/c6eb4a05af3d0ba3bc4e8159287722fb9abc6359
- https://git.kernel.org/stable/c/abf3620cba68e0e51e5c21054ce4f925f75b3661
- https://git.kernel.org/stable/c/c8c80a3a35c2e3488409de2d5376ef7e662a2bf5
- https://git.kernel.org/stable/c/c529c3730bd09115684644e26bf01ecbd7e2c2c9
ADP enrichment
No English description supplied.