CVE-2026-74652
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved:
serial: amba-pl011: cancel RS485 hrtimers after freeing IRQ
The RS485 trigger hrtimers are embedded in the devm-managed port and can fire after it is freed. The IRQ handler can arm a timer, so free the IRQ first and then cancel both timers.
Complete the RS485 stop without arming a timer, and cancel the timers in remove() for the suspend-then-unbind path, where shutdown is not called.
This issue was found by an in-house static analysis tool.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 2c1fd53af21b8cb13878b054894d33d3383eb1f3 < 759ead98a39fb625be302f9aa66290985dcaa325 | affected |
| Linux | Linux | 2c1fd53af21b8cb13878b054894d33d3383eb1f3 < e57f0aa5c35be37218ba0e4887b241584dd4b2d2 | affected |
| Linux | Linux | 2c1fd53af21b8cb13878b054894d33d3383eb1f3 < 36672c8d7d14e9c43287528455d2c97b526ea6ad | affected |
| Linux | Linux | 6.14 | affected |
| Linux | Linux | 0 < 6.14 | unaffected |
| Linux | Linux | 6.18.45 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.9 <= 7.1.* | unaffected |
| Linux | Linux | 7.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/759ead98a39fb625be302f9aa66290985dcaa325
- https://git.kernel.org/stable/c/e57f0aa5c35be37218ba0e4887b241584dd4b2d2
- https://git.kernel.org/stable/c/36672c8d7d14e9c43287528455d2c97b526ea6ad
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