AZL-50679
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-50679.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-50679
- Upstream
- Published
- 2024-10-21T13:15:04Z
- Modified
- 2026-04-01T05:17:34.839800Z
- Severity
-
- 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- CVE-2024-47747 affecting package kernel for versions less than 6.6.56.1-5
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: seeq: Fix use after free vulnerability in ether3 Driver Due to Race Condition
In the ether3probe function, a timer is initialized with a callback function ether3ledoff, bound to &prev(dev)->timer. Once the timer is started, there is a risk of a race condition if the module or device is removed, triggering the ether3_remove function to perform cleanup. The sequence of operations that may lead to a UAF bug is as follows:
CPU0 CPU1
| ether3_ledoffether3remove | freenetdev(dev); | putdevic | kfree(dev); | | ether3outw(priv(dev)->regs.config2 |= CFG2CTRLO, REGCONFIG2); | // use dev
Fix it by ensuring that the timer is canceled before proceeding with the cleanup in ether3_remove.
- References