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High · 7.8 CVE-2022-49685 EUVD-2022-54548GHSA-72c2-78v3-v6cc

iio: trigger: sysfs: fix use-after-free on remove

Published Feb 26, 2025 · Updated May 11, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.15 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-fips Package: linux-aws-hwe Package: linux-azure Package: linux-azure-4.15 Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.15 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-azure-fips Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.15 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.15 Package: linux-hwe-5.19 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.4 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-iot Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-lts-xenial Package: linux-nvidia Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.5 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.15 Package: linux-oracle-5.3 Package: linux-oracle-5.4 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.15 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.5 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Package: linux-vmware Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

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

==================================================================

Affected products

VendorProductAffectedFixed
Linux Linux 3.7 4.9.321

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 linux 5.18.14-1 —
Debian 13 linux 5.18.14-1 —
Debian 12 linux 5.18.14-1 —

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux +1 5.15.0-48.54 —
Ubuntu 22.04 LTS linux-aws 5.15.0-1020.24 —
Ubuntu 22.04 LTS linux-azure 5.15.0-1020.25 —
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1024.30.1 —
Ubuntu 22.04 LTS linux-gcp 5.15.0-1018.24 —
Ubuntu 22.04 LTS linux-gke 5.15.0-1016.19 —
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1003.5 —
Ubuntu 22.04 LTS linux-ibm +1 5.15.0-1015.17 —
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1016.21 —
Ubuntu 22.04 LTS linux-kvm 5.15.0-1018.22 —
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1007.7 —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1018.23 —
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 20.04 LTS linux 5.4.0-126.142 —
Ubuntu 20.04 LTS linux-aws 5.4.0-1085.92 —
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1020.24~20.04.1 —
Ubuntu 20.04 LTS linux-azure 5.4.0-1091.96 —
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1020.25~20.04.1 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1046.51 —
Ubuntu 20.04 LTS linux-gcp 5.4.0-1089.97 —
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1018.24~20.04.1 —
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-48.54~20.04.1 —
Ubuntu 20.04 LTS linux-ibm 5.4.0-1033.37 —
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1016.21~20.04.1 —
Ubuntu 20.04 LTS linux-iot 5.4.0-1004.6 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1075.80 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1083.91 —
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1018.23~20.04.1 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1070.80 —
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1019.22~20.04.1 —
Ubuntu 18.04 LTS linux 4.15.0-194.205 —
Ubuntu 18.04 LTS linux-aws 4.15.0-1142.154 —
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1085.92~18.04.1 —
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1153.168 —
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1091.96~18.04.1 —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1137.153 —
Ubuntu 18.04 LTS linux-gcp-5.4 5.4.0-1089.97~18.04.1 —
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-126.142~18.04.1 —
Ubuntu 18.04 LTS linux-ibm-5.4 5.4.0-1033.37~18.04.1 —
Ubuntu 18.04 LTS linux-kvm 4.15.0-1128.133 —
Ubuntu 18.04 LTS linux-oracle 4.15.0-1107.118 —
Ubuntu 18.04 LTS linux-oracle-5.4 5.4.0-1083.91~18.04.1 —
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1070.80~18.04.1 —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 9 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1021.21 —
Ubuntu Pro FIPS 20.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 16.04 LTS linux-fips No fix yet —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1085.92+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1091.96+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1061.69 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1089.97+fips1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2081.87 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2062.68 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1099.110 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2047.52 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips No fix yet —
Ubuntu Pro 16.04 LTS linux +2 No fix yet —
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1142.154~16.04.1 —
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1153.168~16.04.1 —
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1137.153~16.04.1 —
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-194.205~16.04.1 —
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1107.118~16.04.1 —
Ubuntu Pro 14.04 LTS linux +2 No fix yet —
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1153.168~14.04.1 —

SUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.100.1 SUSE-SU-2025:1241-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.100.1.150500.6.47.1 SUSE-SU-2025:1241-1
SLES 15 SP4 kernel-64kb +6 5.14.21-150400.24.158.1 SUSE-SU-2025:1027-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.158.1.150400.24.78.1 SUSE-SU-2025:1027-1
SLES 15 SP3 kernel-64kb +7 5.3.18-150300.59.201.1 SUSE-SU-2025:1263-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.201.1.150300.18.120.1 SUSE-SU-2025:1263-1
Show 17 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP5 kernel-default-base 5.14.21-150500.55.100.1.150500.6.47.1 SUSE-SU-2025:1241-1
SLES for SAP 15 SP5 kernel-docs +4 5.14.21-150500.55.100.1 SUSE-SU-2025:1241-1
SLES for SAP 15 SP4 kernel-default-base 5.14.21-150400.24.158.1.150400.24.78.1 SUSE-SU-2025:1027-1
SLES for SAP 15 SP4 kernel-docs +4 5.14.21-150400.24.158.1 SUSE-SU-2025:1027-1
SLES for SAP 15 SP3 kernel-default-base 5.3.18-150300.59.201.1.150300.18.120.1 SUSE-SU-2025:1263-1
SLES for SAP 15 SP3 kernel-docs +5 5.3.18-150300.59.201.1 SUSE-SU-2025:1263-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.100.1.150500.6.47.1 SUSE-SU-2025:1241-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.91.1 SUSE-SU-2025:1176-1
SLE Micro 5.5 kernel-source +1 5.14.21-150500.55.100.1 SUSE-SU-2025:1241-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.158.1 SUSE-SU-2025:1027-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.158.1.150400.24.78.1 SUSE-SU-2025:1027-1
SLE Micro 5.4 kernel-rt +1 5.14.21-150400.15.115.1 SUSE-SU-2025:1183-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.158.1 SUSE-SU-2025:1027-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.158.1.150400.24.78.1 SUSE-SU-2025:1027-1
SLE Micro 5.3 kernel-rt +1 5.14.21-150400.15.115.1 SUSE-SU-2025:1183-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.201.1 SUSE-SU-2025:1263-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.201.1.150300.18.120.1 SUSE-SU-2025:1263-1
SLE Micro 5.2 kernel-rt +1 5.3.18-150300.205.1 SUSE-SU-2025:1194-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.201.1 SUSE-SU-2025:1263-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.201.1.150300.18.120.1 SUSE-SU-2025:1263-1
SLE Micro 5.1 kernel-rt +1 5.3.18-150300.205.1 SUSE-SU-2025:1194-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.100.1 SUSE-SU-2025:1241-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_25 1-150500.11.3.1 SUSE-SU-2025:1241-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.158.1 SUSE-SU-2025:1027-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_38 1-150400.9.3.1 SUSE-SU-2025:1027-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.201.1 SUSE-SU-2025:1263-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_56 1-150300.7.3.1 SUSE-SU-2025:1263-1
SLE HPC 15 SP5 kernel-64kb +5 5.14.21-150500.55.100.1 SUSE-SU-2025:1241-1
SLE HPC 15 SP5 kernel-default-base 5.14.21-150500.55.100.1.150500.6.47.1 SUSE-SU-2025:1241-1
SLE HPC 15 SP4 kernel-64kb +5 5.14.21-150400.24.158.1 SUSE-SU-2025:1027-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.158.1.150400.24.78.1 SUSE-SU-2025:1027-1
SLE HPC 15 SP3 kernel-64kb +6 5.3.18-150300.59.201.1 SUSE-SU-2025:1263-1
SLE HPC 15 SP3 kernel-default-base 5.3.18-150300.59.201.1.150300.18.120.1 SUSE-SU-2025:1263-1
SUSE Manager Server 4.3 kernel-default-base 5.14.21-150400.24.158.1.150400.24.78.1 SUSE-SU-2025:1027-1
SUSE Manager Server 4.3 kernel-syms +3 5.14.21-150400.24.158.1 SUSE-SU-2025:1027-1
SUSE Manager Proxy 4.3 kernel-default-base 5.14.21-150400.24.158.1.150400.24.78.1 SUSE-SU-2025:1027-1
SUSE Manager Proxy 4.3 kernel-syms +2 5.14.21-150400.24.158.1 SUSE-SU-2025:1027-1
SUSE Enterprise Storage 7.1 kernel-64kb +6 5.3.18-150300.59.201.1 SUSE-SU-2025:1263-1
SUSE Enterprise Storage 7.1 kernel-default-base 5.3.18-150300.59.201.1.150300.18.120.1 SUSE-SU-2025:1263-1

Advisories 6

References