CVE-2022-49685
iio: trigger: sysfs: fix use-after-free on remove
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
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 ==================================================================
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.28% · top 80% of all CVEs (5 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected f38bc926d022ebd67baad6ac7fc22c95fbc6238c – < d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2
- affected f38bc926d022ebd67baad6ac7fc22c95fbc6238c – < fd5d8fb298a2866c337da635c79d63c3afabcaf7
- affected f38bc926d022ebd67baad6ac7fc22c95fbc6238c – < 31ff3309b47d98313c61b8301bf595820cc3cc33
- affected f38bc926d022ebd67baad6ac7fc22c95fbc6238c – < 5e39397d60dacc7f5d81d442c1c958eaaaf31128
- affected f38bc926d022ebd67baad6ac7fc22c95fbc6238c – < b07a30a774b3c3e584a68dc91779c68ea2da4813
- affected f38bc926d022ebd67baad6ac7fc22c95fbc6238c – < 4687c3f955240ca2a576bdc3f742d4d915b6272d
- affected f38bc926d022ebd67baad6ac7fc22c95fbc6238c – < 4ef1e521be610b720daeb7cf899fedc7db0274c4
- affected f38bc926d022ebd67baad6ac7fc22c95fbc6238c – < 78601726d4a59a291acc5a52da1d3a0a6831e4e8
- affected 3.7
- unaffected < 3.7
- unaffected 4.9.321 – ≤ 4.9.*
- unaffected 4.14.286 – ≤ 4.14.*
- unaffected 4.19.250 – ≤ 4.19.*
- unaffected 5.4.202 – ≤ 5.4.*
- unaffected 5.10.127 – ≤ 5.10.*
- unaffected 5.15.51 – ≤ 5.15.*
- unaffected 5.18.8 – ≤ 5.18.*
- unaffected 5.19 – ≤ *
References (8)
- https://git.kernel.org/stable/c/d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2 (opens in a new tab)
- https://git.kernel.org/stable/c/fd5d8fb298a2866c337da635c79d63c3afabcaf7 (opens in a new tab)
- https://git.kernel.org/stable/c/31ff3309b47d98313c61b8301bf595820cc3cc33 (opens in a new tab)
- https://git.kernel.org/stable/c/5e39397d60dacc7f5d81d442c1c958eaaaf31128 (opens in a new tab)
- https://git.kernel.org/stable/c/b07a30a774b3c3e584a68dc91779c68ea2da4813 (opens in a new tab)
- https://git.kernel.org/stable/c/4687c3f955240ca2a576bdc3f742d4d915b6272d (opens in a new tab)
- https://git.kernel.org/stable/c/4ef1e521be610b720daeb7cf899fedc7db0274c4 (opens in a new tab)
- https://git.kernel.org/stable/c/78601726d4a59a291acc5a52da1d3a0a6831e4e8 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-49685)Record last updated .