Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: irqchip/ts4800: Fix missing chained handler cleanup on remove The driver installs a chained handler for the parent interrupt during probe using irq_set_chained_handler_and_data(), but the remove function does not clear this handler. This leaves a dangling handler that may be called when the parent interrupt fires after the driver has been removed, potentially accessing freed memory and causing a kernel crash. Additionally, the parent_irq obtained via irq_of_parse_and_map() is not stored, making it inaccessible in the remove function. Moreover, interrupt mappings created during probe are not properly disposed. Fix this by: - Saving parent_irq in probe - Clearing the chained handler with NULL in ts4800_ic_remove() - Disposing all IRQ mappings before domain removal to prevent resource leaks
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected d01f8633d52e4dac5ee598b87d49fd23346ccfd6 before b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c; affected d01f8633d52e4dac5ee598b87d49fd23346ccfd6 before e6b674dc341c6add7d85bec2ec22caf1aad35795; affected d01f8633d52e4dac5ee598b87d49fd23346ccfd6 before 3f31f49afffa169cd01e6c37568c4df3eb1051af; affected d01f8633d52e4dac5ee598b87d49fd23346ccfd6 before 4e8d498d32b6c67d73bb8b317ff316ff37897a3e; affected d01f8633d52e4dac5ee598b87d49fd23346ccfd6 before 9ed0dca2aa05908b33ecf0bb15c7953947529542; affected d01f8633d52e4dac5ee598b87d49fd23346ccfd6 before 98bf7e54cec07d514b3575c11896a8b12d50ecc4 |
| Linux / Linux | affected 4.5; unaffected 0 before 4.5; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c
- https://git.kernel.org/stable/c/e6b674dc341c6add7d85bec2ec22caf1aad35795
- https://git.kernel.org/stable/c/3f31f49afffa169cd01e6c37568c4df3eb1051af
- https://git.kernel.org/stable/c/4e8d498d32b6c67d73bb8b317ff316ff37897a3e
- https://git.kernel.org/stable/c/9ed0dca2aa05908b33ecf0bb15c7953947529542
- https://git.kernel.org/stable/c/98bf7e54cec07d514b3575c11896a8b12d50ecc4