ghsa-72c2-78v3-v6cc
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
iio: trigger: sysfs: fix use-after-free on remove
Ensure that the irq_work has completed before the trigger is freed.
================================================================== BUG: KASAN: use-after-free in irq_work_run_list Read of size 8 at addr 0000000064702248 by task python3/25
Call Trace: irq_work_run_list irq_work_tick update_process_times tick_sched_handle tick_sched_timer __hrtimer_run_queues hrtimer_interrupt
Allocated by task 25: kmem_cache_alloc_trace iio_sysfs_trig_add dev_attr_store sysfs_kf_write kernfs_fop_write_iter new_sync_write vfs_write ksys_write sys_write
Freed by task 25: kfree iio_sysfs_trig_remove dev_attr_store sysfs_kf_write kernfs_fop_write_iter new_sync_write vfs_write ksys_write sys_write
==================================================================
{
"affected": [],
"aliases": [
"CVE-2022-49685"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T07:01:43Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: trigger: sysfs: fix use-after-free on remove\n\nEnsure that the irq_work has completed before the trigger is freed.\n\n ==================================================================\n BUG: KASAN: use-after-free in irq_work_run_list\n Read of size 8 at addr 0000000064702248 by task python3/25\n\n Call Trace:\n irq_work_run_list\n irq_work_tick\n update_process_times\n tick_sched_handle\n tick_sched_timer\n __hrtimer_run_queues\n hrtimer_interrupt\n\n Allocated by task 25:\n kmem_cache_alloc_trace\n iio_sysfs_trig_add\n dev_attr_store\n sysfs_kf_write\n kernfs_fop_write_iter\n new_sync_write\n vfs_write\n ksys_write\n sys_write\n\n Freed by task 25:\n kfree\n iio_sysfs_trig_remove\n dev_attr_store\n sysfs_kf_write\n kernfs_fop_write_iter\n new_sync_write\n vfs_write\n ksys_write\n sys_write\n\n ==================================================================",
"id": "GHSA-72c2-78v3-v6cc",
"modified": "2025-02-27T21:32:15Z",
"published": "2025-02-27T21:32:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49685"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/31ff3309b47d98313c61b8301bf595820cc3cc33"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4687c3f955240ca2a576bdc3f742d4d915b6272d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4ef1e521be610b720daeb7cf899fedc7db0274c4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5e39397d60dacc7f5d81d442c1c958eaaaf31128"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/78601726d4a59a291acc5a52da1d3a0a6831e4e8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b07a30a774b3c3e584a68dc91779c68ea2da4813"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fd5d8fb298a2866c337da635c79d63c3afabcaf7"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
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