{"cve":"CVE-2022-49685","nvd":{"published":"2025-02-26T07:01:43.340","modified":"2026-06-17T05:18:51.680","status":"Analyzed","description":"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 ==================================================================","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-416"],"references":["https://git.kernel.org/stable/c/31ff3309b47d98313c61b8301bf595820cc3cc33","https://git.kernel.org/stable/c/4687c3f955240ca2a576bdc3f742d4d915b6272d","https://git.kernel.org/stable/c/4ef1e521be610b720daeb7cf899fedc7db0274c4","https://git.kernel.org/stable/c/5e39397d60dacc7f5d81d442c1c958eaaaf31128","https://git.kernel.org/stable/c/78601726d4a59a291acc5a52da1d3a0a6831e4e8"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2022-49685","score":0.00276,"percentile":0.20083,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}