CVE-2024-36932 In the Linux kernel, the following vulnerability has been resolved: thermal/debugfs: Prevent use-after-free from…
Description
In the Linux kernel, the following vulnerability has been resolved: thermal/debugfs: Prevent use-after-free from occurring after cdev removal Since thermal_debug_cdev_remove() does not run under cdev->lock, it can run in parallel with thermal_debug_cdev_state_update() and it may free the struct thermal_debugfs object used by the latter after it has been checked against NULL. If that happens, thermal_debug_cdev_state_update() will access memory that has been freed already causing the kernel to crash. Address this by using cdev->lock in thermal_debug_cdev_remove() around the cdev->debugfs value check (in case the same cdev is removed at the same time in two different threads) and its reset to NULL. Cc :6.8+ <stable@vger.kernel.org> # 6.8+
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Linux 6.9 | premières → < 6.9 | 6.9 |
| Linux | 6.8 | 6.8.10 |
| linux_kernel 755113 | 755113d76786 → dernières | Pas de correctif indiqué |
| linux_kernel 6.9 | premières → < 6.9 | 6.9 |
| linux_kernel | 6.8 | 6.8.10 |
Références
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
Chronologie
- Publiée
- Dernière modification