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High · 7.8 CVE-2022-49270 EUVD-2022-54956GHSA-hr8j-x4gj-pqf8

dm: fix use-after-free in dm_cleanup_zoned_dev()

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-5.19 Package: linux-aws-5.3 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-azure 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-5.8 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-gcp Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.8 Package: linux-gcp-6.2 Package: linux-gcp-6.5 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-5.8 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-edge Package: linux-ibm Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 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-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-5.3 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-raspi Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 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 Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

In the Linux kernel, the following vulnerability has been resolved:

dm: fix use-after-free in dm_cleanup_zoned_dev()

dm_cleanup_zoned_dev() uses queue, so it must be called
before blk_cleanup_disk() starts its killing:

blk_cleanup_disk->blk_cleanup_queue()->kobject_put()->blk_release_queue()->
->...RCU...->blk_free_queue_rcu()->kmem_cache_free()

Otherwise, RCU callback may be executed first and
dm_cleanup_zoned_dev() will touch free'd memory:

BUG: KASAN: use-after-free in dm_cleanup_zoned_dev+0x33/0xd0
Read of size 8 at addr ffff88805ac6e430 by task dmsetup/681

CPU: 4 PID: 681 Comm: dmsetup Not tainted 5.17.0-rc2+ #6
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0x57/0x7d
print_address_description.constprop.0+0x1f/0x150
? dm_cleanup_zoned_dev+0x33/0xd0
kasan_report.cold+0x7f/0x11b
? dm_cleanup_zoned_dev+0x33/0xd0
dm_cleanup_zoned_dev+0x33/0xd0
__dm_destroy+0x26a/0x400
? dm_blk_ioctl+0x230/0x230
? up_write+0xd8/0x270
dev_remove+0x156/0x1d0
ctl_ioctl+0x269/0x530
? table_clear+0x140/0x140
? lock_release+0xb2/0x750
? remove_all+0x40/0x40
? rcu_read_lock_sched_held+0x12/0x70
? lock_downgrade+0x3c0/0x3c0
? rcu_read_lock_sched_held+0x12/0x70
dm_ctl_ioctl+0xa/0x10
__x64_sys_ioctl+0xb9/0xf0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb6dfa95c27

Affected products

VendorProductAffectedFixed
Linux Linux 5.14 5.15.33

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.

ReleasePackageFixed inAdvisory
Debian 14 linux 5.17.3-1 —
Debian 13 linux 5.17.3-1 —
Debian 12 linux 5.17.3-1 —
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux +1 5.15.0-37.39 —
Ubuntu 22.04 LTS linux-aws 5.15.0-1011.14 —
Ubuntu 22.04 LTS linux-azure 5.15.0-1010.12 —
Ubuntu 22.04 LTS linux-gcp 5.15.0-1008.12 —
Ubuntu 22.04 LTS linux-gke 5.15.0-1008.10 —
Ubuntu 22.04 LTS linux-ibm 5.15.0-1007.8 —
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1008.11 —
Ubuntu 22.04 LTS linux-kvm 5.15.0-1010.11 —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1009.12 —
Ubuntu 22.04 LTS linux-raspi 5.15.0-1011.13 —
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1008.9~20.04.1 —
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 20.04 LTS linux-hwe-5.15 5.15.0-41.44~20.04.1 —
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1008.11~20.04.1 —
Ubuntu 20.04 LTS linux-lowlatency-hwe-5.15 5.15.0-42.45~20.04.1 —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1014.14 —
ReleasePackageFixed inAdvisory
RHEL 9 perf +29 5.14.0-162.6.1.el9_1 RHSA-2022:8267
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 9.0 E4S perf +28 5.14.0-70.121.1.el9_0 RHSA-2024:9942
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
Show 11 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
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 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 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
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

Advisories 6

References