Vulnerability details
CVE-2026-74652
Linux Linux
serial: amba-pl011: cancel RS485 hrtimers after freeing IRQ
CVSS 3.1
7.8High
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.14 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2c1fd53af21b8cb13878b054894d33d3383eb1f3 ≤ v < 759ead98a39fb625be302f9aa66290985dcaa325 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2c1fd53af21b8cb13878b054894d33d3383eb1f3 ≤ v < e57f0aa5c35be37218ba0e4887b241584dd4b2d2 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2c1fd53af21b8cb13878b054894d33d3383eb1f3 ≤ v < 36672c8d7d14e9c43287528455d2c97b526ea6ad | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2026-08-22
- Last updated
- 2026-08-25
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.12%
Probability of exploitation in 30 days
2.4%
Percentile (among all CVEs)
Weaknesses (CWE)
- —