Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drivers: usb: host: Fix deadlock in oxu_bus_suspend() There is a deadlock in oxu_bus_suspend(), which is shown below: (Thread 1) | (Thread 2) | timer_action() oxu_bus_suspend() | mod_timer() spin_lock_irq() //(1) | (wait a time) ... | oxu_watchdog() del_timer_sync() | spin_lock_irq() //(2) (wait timer to stop) | ... We hold oxu->lock in position (1) of thread 1, and use del_timer_sync() to wait timer to stop, but timer handler also need oxu->lock in position (2) of thread 2. As a result, oxu_bus_suspend() will block forever. This patch extracts del_timer_sync() from the protection of spin_lock_irq(), which could let timer handler to obtain the needed lock.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b92a78e582b1a45649143dc86e526f5824092478 before 9b58d255f27b0ed6a2e43208960864d67579db58; affected b92a78e582b1a45649143dc86e526f5824092478 before a3d380188bde8900c3f604e82b56572896499124; affected b92a78e582b1a45649143dc86e526f5824092478 before f8242044c91cafbba9e320b0fb31abf2429a3221; affected b92a78e582b1a45649143dc86e526f5824092478 before 2dcec0bc142be2096af71a5703d63237127db204; affected b92a78e582b1a45649143dc86e526f5824092478 before ffe9440d698274c6462d2e304562c6ddfc8c84df; affected b92a78e582b1a45649143dc86e526f5824092478 before d888753872190abd18f68a7d77b9c7c367f0a7ab; affected b92a78e582b1a45649143dc86e526f5824092478 before 4187b291a76664a3c03d3f0d9bfadc8322881868; affected b92a78e582b1a45649143dc86e526f5824092478 before b97aae8b43b718314012e8170b7e03dbfd2e7677; affected b92a78e582b1a45649143dc86e526f5824092478 before 4d378f2ae58138d4c55684e1d274e7dd94aa6524 |
| Linux / Linux | affected 2.6.29; unaffected 0 before 2.6.29; unaffected 4.9.318 through 4.9.*; unaffected 4.14.283 through 4.14.*; unaffected 4.19.247 through 4.19.*; unaffected 5.4.198 through 5.4.*; unaffected 5.10.122 through 5.10.*; unaffected 5.15.47 through 5.15.*; unaffected 5.17.15 through 5.17.*; unaffected 5.18.4 through 5.18.*; unaffected 5.19 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/9b58d255f27b0ed6a2e43208960864d67579db58
- https://git.kernel.org/stable/c/a3d380188bde8900c3f604e82b56572896499124
- https://git.kernel.org/stable/c/f8242044c91cafbba9e320b0fb31abf2429a3221
- https://git.kernel.org/stable/c/2dcec0bc142be2096af71a5703d63237127db204
- https://git.kernel.org/stable/c/ffe9440d698274c6462d2e304562c6ddfc8c84df
- https://git.kernel.org/stable/c/d888753872190abd18f68a7d77b9c7c367f0a7ab
- https://git.kernel.org/stable/c/4187b291a76664a3c03d3f0d9bfadc8322881868
- https://git.kernel.org/stable/c/b97aae8b43b718314012e8170b7e03dbfd2e7677
- https://git.kernel.org/stable/c/4d378f2ae58138d4c55684e1d274e7dd94aa6524
ADP enrichment
No English description supplied.
No references supplied.