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High · 7.8 CVE-2022-49465 EUVD-2022-54764GHSA-xp9j-268q-p7q6

blk-throttle: Set BIO_THROTTLED when bio has been throttled

Published Feb 26, 2025 · Updated Aug 5, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: kernel 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-5.15 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-nvidia-tegra Package: linux-nvidia-tegra-5.15 Package: linux-nvidia-tegra-igx 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 Package: linux-xilinx-zynqmp Platform: Linux Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

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

blk-throttle: Set BIO_THROTTLED when bio has been throttled

1.In current process, all bio will set the BIO_THROTTLED flag
after __blk_throtl_bio().

2.If bio needs to be throttled, it will start the timer and
stop submit bio directly. Bio will submit in
blk_throtl_dispatch_work_fn() when the timer expires.But in
the current process, if bio is throttled. The BIO_THROTTLED
will be set to bio after timer start. If the bio has been
completed, it may cause use-after-free blow.

BUG: KASAN: use-after-free in blk_throtl_bio+0x12f0/0x2c70
Read of size 2 at addr ffff88801b8902d4 by task fio/26380

dump_stack+0x9b/0xce
print_address_description.constprop.6+0x3e/0x60
kasan_report.cold.9+0x22/0x3a
blk_throtl_bio+0x12f0/0x2c70
submit_bio_checks+0x701/0x1550
submit_bio_noacct+0x83/0xc80
submit_bio+0xa7/0x330
mpage_readahead+0x380/0x500
read_pages+0x1c1/0xbf0
page_cache_ra_unbounded+0x471/0x6f0
do_page_cache_ra+0xda/0x110
ondemand_readahead+0x442/0xae0
page_cache_async_ra+0x210/0x300
generic_file_buffered_read+0x4d9/0x2130
generic_file_read_iter+0x315/0x490
blkdev_read_iter+0x113/0x1b0
aio_read+0x2ad/0x450
io_submit_one+0xc8e/0x1d60
__se_sys_io_submit+0x125/0x350
do_syscall_64+0x2d/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xa9

Allocated by task 26380:
kasan_save_stack+0x19/0x40
__kasan_kmalloc.constprop.2+0xc1/0xd0
kmem_cache_alloc+0x146/0x440
mempool_alloc+0x125/0x2f0
bio_alloc_bioset+0x353/0x590
mpage_alloc+0x3b/0x240
do_mpage_readpage+0xddf/0x1ef0
mpage_readahead+0x264/0x500
read_pages+0x1c1/0xbf0
page_cache_ra_unbounded+0x471/0x6f0
do_page_cache_ra+0xda/0x110
ondemand_readahead+0x442/0xae0
page_cache_async_ra+0x210/0x300
generic_file_buffered_read+0x4d9/0x2130
generic_file_read_iter+0x315/0x490
blkdev_read_iter+0x113/0x1b0
aio_read+0x2ad/0x450
io_submit_one+0xc8e/0x1d60
__se_sys_io_submit+0x125/0x350
do_syscall_64+0x2d/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xa9

Freed by task 0:
kasan_save_stack+0x19/0x40
kasan_set_track+0x1c/0x30
kasan_set_free_info+0x1b/0x30
__kasan_slab_free+0x111/0x160
kmem_cache_free+0x94/0x460
mempool_free+0xd6/0x320
bio_free+0xe0/0x130
bio_put+0xab/0xe0
bio_endio+0x3a6/0x5d0
blk_update_request+0x590/0x1370
scsi_end_request+0x7d/0x400
scsi_io_completion+0x1aa/0xe50
scsi_softirq_done+0x11b/0x240
blk_mq_complete_request+0xd4/0x120
scsi_mq_done+0xf0/0x200
virtscsi_vq_done+0xbc/0x150
vring_interrupt+0x179/0x390
__handle_irq_event_percpu+0xf7/0x490
handle_irq_event_percpu+0x7b/0x160
handle_irq_event+0xcc/0x170
handle_edge_irq+0x215/0xb20
common_interrupt+0x60/0x120
asm_common_interrupt+0x1e/0x40

Fix this by move BIO_THROTTLED set into the queue_lock.

Affected products

VendorProductAffectedFixed
Linux Linux 3.11 5.10.248

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 5.18.5-1 —
Debian 13 linux 5.18.5-1 —
Debian 12 linux 5.18.5-1 —
Debian 11 linux 5.10.249-1 DLA-4475-1
ReleasePackageFixed inAdvisory
Ubuntu Nvidia-BlueField 22.04 LTS linux-bluefield 5.15.0-1086.88 —
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux +1 5.15.0-173.183 USN-8096-1
Ubuntu 22.04 LTS linux-aws 5.15.0-1103.110 USN-8096-1
Ubuntu 22.04 LTS linux-azure 5.15.0-1109.118 USN-8163-2
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1109.118.1 —
Ubuntu 22.04 LTS linux-gcp 5.15.0-1103.112 USN-8096-1
Ubuntu 22.04 LTS linux-gke 5.15.0-1099.105 USN-8096-3
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1086.94 USN-8096-1
Ubuntu 22.04 LTS linux-ibm +1 5.15.0-1097.100 USN-8141-1, USN-8096-1
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1098.104 USN-8096-1
Ubuntu 22.04 LTS linux-kvm 5.15.0-1095.100 USN-8096-1
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1098.99 USN-8096-1
Ubuntu 22.04 LTS linux-nvidia-tegra 5.15.0-1055.55 USN-8096-1
Ubuntu 22.04 LTS linux-nvidia-tegra-igx 5.15.0-1044.44 USN-8096-5
Ubuntu 22.04 LTS linux-oracle 5.15.0-1100.106 USN-8096-1
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 22.04 LTS linux-xilinx-zynqmp 5.15.0-1067.71 USN-8096-1
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Show 14 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Ubuntu Pro Realtime 22.04 LTS linux-intel-iot-realtime 5.15.0-1094.96 USN-8116-1
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1102.111 USN-8096-4
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 22.04 LTS linux-aws-fips 5.15.0-1103.110+fips1 USN-8096-2
Ubuntu Pro FIPS-updates 22.04 LTS linux-azure-fips 5.15.0-1109.118+fips1 USN-8163-1
Ubuntu Pro FIPS-updates 22.04 LTS linux-fips 5.15.0-173.183+fips1 USN-8096-2
Ubuntu Pro FIPS-updates 22.04 LTS linux-gcp-fips 5.15.0-1103.112+fips1 USN-8096-2
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips No fix yet —
Ubuntu Pro FIPS-preview 22.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro 20.04 LTS linux +10 No fix yet —
Ubuntu Pro 20.04 LTS linux-aws-5.15 5.15.0-1103.110~20.04.1 USN-8096-3
Ubuntu Pro 20.04 LTS linux-azure-5.15 5.15.0-1110.119~20.04.1 USN-8243-1
Ubuntu Pro 20.04 LTS linux-gcp-5.15 5.15.0-1103.112~20.04.1 USN-8096-3
Ubuntu Pro 20.04 LTS linux-hwe-5.15 +1 5.15.0-173.183~20.04.1 USN-8096-3
Ubuntu Pro 20.04 LTS linux-ibm-5.15 5.15.0-1097.100~20.04.1 USN-8096-1
Ubuntu Pro 20.04 LTS linux-intel-iotg-5.15 5.15.0-1098.104~20.04.1 USN-8096-3
Ubuntu Pro 20.04 LTS linux-nvidia-tegra-5.15 5.15.0-1055.55~20.04.1 USN-8096-1
Ubuntu Pro 20.04 LTS linux-oracle-5.15 5.15.0-1100.106~20.04.1 USN-8096-3
Ubuntu Pro 20.04 LTS linux-riscv-5.15 5.15.0-1097.101~20.04.1 —
Ubuntu Pro 18.04 LTS linux +12 No fix yet —
Ubuntu Pro 16.04 LTS linux +7 No fix yet —
Ubuntu Pro 14.04 LTS linux +3 No fix yet —
ReleasePackageFixed inAdvisory
RHEL 9 perf +29 5.14.0-162.6.1.el9_1 RHSA-2022:8267
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 5.14.21-150400.24.161.1 SUSE-SU-2025:1195-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.161.1.150400.24.80.1 SUSE-SU-2025:1195-1
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
SLES 12 SP5 kernel-syms +2 4.12.14-122.258.1 SUSE-SU-2025:01600-1
Show 18 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 5.14.21-150400.24.161.1.150400.24.80.1 SUSE-SU-2025:1195-1
SLES for SAP 15 SP4 kernel-docs +4 5.14.21-150400.24.161.1 SUSE-SU-2025:1195-1
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 5.14.21-150400.24.161.1 SUSE-SU-2025:1195-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.161.1.150400.24.80.1 SUSE-SU-2025:1195-1
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 5.14.21-150400.24.161.1 SUSE-SU-2025:1195-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.161.1.150400.24.80.1 SUSE-SU-2025:1195-1
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 5.14.21-150400.24.161.1 SUSE-SU-2025:1195-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_27 18-150400.2.1 SUSE-SU-2025:02455-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_28 15-150400.2.1 SUSE-SU-2025:02436-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_29 13-150400.2.1 SUSE-SU-2025:02419-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_31 +1 11-150400.2.1 SUSE-SU-2025:02434-1, SUSE-SU-2025:02400-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_33 10-150400.2.1 SUSE-SU-2025:02401-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_35 8-150400.2.1 SUSE-SU-2025:02445-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_36 +1 3-150400.2.1 SUSE-SU-2025:02451-1, SUSE-SU-2025:02444-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_38 2-150400.2.1 SUSE-SU-2025:02468-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_39 1-150400.9.3.1 SUSE-SU-2025:1195-1
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_45 17-150300.2.1 SUSE-SU-2025:02416-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_46 16-150300.2.1 SUSE-SU-2025:02398-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_48 13-150300.2.1 SUSE-SU-2025:02428-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_49 12-150300.2.1 SUSE-SU-2025:02446-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_51 8-150300.2.1 SUSE-SU-2025:02454-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_52 7-150300.2.1 SUSE-SU-2025:02399-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_54 +1 4-150300.2.1 SUSE-SU-2025:02451-1, SUSE-SU-2025:02418-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_56 1-150300.7.3.1 SUSE-SU-2025:1263-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.258.1 SUSE-SU-2025:01600-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_57 16-2.1 SUSE-SU-2025:02422-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_58 14-2.1 SUSE-SU-2025:02391-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_59 13-2.1 SUSE-SU-2025:02392-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_60 12-2.1 SUSE-SU-2025:02507-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_61 11-2.1 SUSE-SU-2025:4123-1, SUSE-SU-2025:02396-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_63 7-2.1 SUSE-SU-2025:02415-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_64 6-2.1 SUSE-SU-2025:02402-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_65 4-2.1 SUSE-SU-2025:02394-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_68 1-8.3.1 SUSE-SU-2025:01600-1
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 5.14.21-150400.24.161.1 SUSE-SU-2025:1195-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.161.1.150400.24.80.1 SUSE-SU-2025:1195-1
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 5.14.21-150400.24.161.1.150400.24.80.1 SUSE-SU-2025:1195-1
SUSE Manager Server 4.3 kernel-syms +3 5.14.21-150400.24.161.1 SUSE-SU-2025:1195-1
SUSE Manager Proxy 4.3 kernel-default-base 5.14.21-150400.24.161.1.150400.24.80.1 SUSE-SU-2025:1195-1
SUSE Manager Proxy 4.3 kernel-syms +2 5.14.21-150400.24.161.1 SUSE-SU-2025:1195-1
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

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2 kernel-livepatch-4.14.355-277.643 1.0-0.amzn2 ALAS2-2025-2854
Amazon Linux 2 perf +8 4.14.355-277.643.amzn2 ALAS2-2025-2854

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 2 (CBL-Mariner) kernel 5.15.200.1-1 —

Advisories 46

References