ghsa-h5x3-2xcq-h4j8
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
leds: trigger: Unregister sysfs attributes before calling deactivate()
Triggers which have trigger specific sysfs attributes typically store related data in trigger-data allocated by the activate() callback and freed by the deactivate() callback.
Calling device_remove_groups() after calling deactivate() leaves a window where the sysfs attributes show/store functions could be called after deactivation and then operate on the just freed trigger-data.
Move the device_remove_groups() call to before deactivate() to close this race window.
This also makes the deactivation path properly do things in reverse order of the activation path which calls the activate() callback before calling device_add_groups().
{
"affected": [],
"aliases": [
"CVE-2024-43830"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-17T10:15:08Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nleds: trigger: Unregister sysfs attributes before calling deactivate()\n\nTriggers which have trigger specific sysfs attributes typically store\nrelated data in trigger-data allocated by the activate() callback and\nfreed by the deactivate() callback.\n\nCalling device_remove_groups() after calling deactivate() leaves a window\nwhere the sysfs attributes show/store functions could be called after\ndeactivation and then operate on the just freed trigger-data.\n\nMove the device_remove_groups() call to before deactivate() to close\nthis race window.\n\nThis also makes the deactivation path properly do things in reverse order\nof the activation path which calls the activate() callback before calling\ndevice_add_groups().",
"id": "GHSA-h5x3-2xcq-h4j8",
"modified": "2024-08-19T06:30:54Z",
"published": "2024-08-17T12:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43830"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0788a6f3523d3686a9eed5ea1e6fcce6841277b2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/09c1583f0e10c918855d6e7540a79461a353e5d6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3fb6a9d67cfd812a547ac73ec02e1077c26c640d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/734ba6437e80dfc780e9ee9d95f912392d12b5ea"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c0dc9adf9474ecb7106e60e5472577375aedaed3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c3b7a650c8717aa89df318364609c86cbc040156"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cb8aa9d2a4c8a15d6a43ccf901ef3d094aa60374"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d1415125b701ef13370e2761f691ec632a5eb93a"
}
],
"schema_version": "1.4.0",
"severity": []
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.