CVE-2024-38634
Last modified
CVE-2024-38634 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: serial: max3100: Lock port->lock when calling uart_handle_cts_change() uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: serial: max3100: Lock port->lock when calling uart_handle_cts_change() uart_handle_cts_change() has to be called with port lock taken, Since we run it in a separate work, the lock may not be taken at the time of running. Make sure that it's taken by explicitly doing that. Without it we got a splat: WARNING: CPU: 0 PID: 10 at drivers/tty/serial/serial_core.c:3491 uart_handle_cts_change+0xa6/0xb0 ... Workqueue: max3100-0 max3100_work [max3100] RIP: 0010:uart_handle_cts_change+0xa6/0xb0 ... max3100_handlerx+0xc5/0x110 [max3100] max3100_work+0x12a/0x340 [max3100]
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.31, < 4.19.316 |
| Linux | Linux Kernel | >= 4.20, < 5.4.278 |
| Linux | Linux Kernel | >= 5.5, < 5.10.219 |
| Linux | Linux Kernel | >= 5.11, < 5.15.161 |
| Linux | Linux Kernel | >= 5.16, < 6.1.93 |
| Linux | Linux Kernel | >= 6.2, < 6.6.33 |
| Linux | Linux Kernel | >= 6.7, < 6.9.4 |
| Linux | Linux Kernel | 2.6.30 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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