CVE-2022-49685 json
iio: trigger: sysfs: fix use-after-free on remove
published 2025-02-26 20 mo ago modified 2026-06-17 4 mo ago also EUVD-2022-54548
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
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
==================================================================
Patch / fix
- Linux Linux 4.9.321, 4.14.286, 4.19.250, 5.4.202, 5.10.127, 5.15.51, 5.18.8, 5.19
- linux Debian 14, Debian 13, Debian 12 5.18.14-1
debian advisories DEBIAN-CVE-2022-49685
- linux Ubuntu 18.04 LTS 4.15.0-194.205
- linux Ubuntu 20.04 LTS 5.4.0-126.142
- linux Ubuntu 22.04 LTS 5.15.0-48.54
- linux-aws Ubuntu 18.04 LTS 4.15.0-1142.154
- linux-aws Ubuntu 20.04 LTS 5.4.0-1085.92
- linux-aws Ubuntu 22.04 LTS 5.15.0-1020.24
- linux-gcp Ubuntu 20.04 LTS 5.4.0-1089.97
- linux-gcp Ubuntu 22.04 LTS 5.15.0-1018.24
ubuntu advisories UBUNTU-CVE-2022-49685
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- kernel-64kb SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS, Enterprise Storage 7.1 5.3.18-150300.59.201.1
- kernel-syms SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS +1 more 5.3.18-150300.59.201.1
- kernel-source SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS +1 more 5.3.18-150300.59.201.1
- kernel-default SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Micro 5.2 +5 more 5.3.18-150300.59.201.1
- kernel-preempt SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS +1 more 5.3.18-150300.59.201.1
- kernel-obs-build SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS +1 more 5.3.18-150300.59.201.1
- kernel-default-base SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Micro 5.2 +3 more 5.3.18-150300.59.201.1.150300.18.120.1
- kernel-64kb SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS, SLE High Performance Computing 15 SP5-ESPOS 5.14.21-150500.55.100.1
suse advisories SUSE-SU-2025:1263-1SUSE-SU-2025:1241-1SUSE-SU-2025:1194-1SUSE-SU-2025:1183-1SUSE-SU-2025:1176-1SUSE-SU-2025:1027-1
- git.kernel.org/stable/c/d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2 commit
- git.kernel.org/stable/c/fd5d8fb298a2866c337da635c79d63c3afabcaf7 commit
- git.kernel.org/stable/c/31ff3309b47d98313c61b8301bf595820cc3cc33 commit
- git.kernel.org/stable/c/5e39397d60dacc7f5d81d442c1c958eaaaf31128 commit
- git.kernel.org/stable/c/b07a30a774b3c3e584a68dc91779c68ea2da4813 commit
- git.kernel.org/stable/c/4687c3f955240ca2a576bdc3f742d4d915b6272d commit
- git.kernel.org/stable/c/4ef1e521be610b720daeb7cf899fedc7db0274c4 commit
- git.kernel.org/stable/c/78601726d4a59a291acc5a52da1d3a0a6831e4e8 commit
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2022-49685 updated cvss 7.8
kernel: iio: trigger: sysfs: fix use-after-free on remove
-
Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more Red Hat Enterprise Linux 10 kernelnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 20 mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Linux Linux
Classification
- Weakness
-
- CWE-416 Use After Free
- Technology feeds
References
-
git.kernel.org
/stable/c/d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2
patch
-
git.kernel.org
/stable/c/fd5d8fb298a2866c337da635c79d63c3afabcaf7
patch
-
git.kernel.org
/stable/c/31ff3309b47d98313c61b8301bf595820cc3cc33
patch
-
git.kernel.org
/stable/c/5e39397d60dacc7f5d81d442c1c958eaaaf31128
patch
-
git.kernel.org
/stable/c/b07a30a774b3c3e584a68dc91779c68ea2da4813
patch
-
git.kernel.org
/stable/c/4687c3f955240ca2a576bdc3f742d4d915b6272d
patch
-
git.kernel.org
/stable/c/4ef1e521be610b720daeb7cf899fedc7db0274c4
patch
-
git.kernel.org
/stable/c/78601726d4a59a291acc5a52da1d3a0a6831e4e8
patch
Sources
- CVE List CVE-2022-49685
- NVD CVE-2022-49685
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