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6.8

CVE-2023-53151: Linux kernel RAID10 can cause CPU lockup during writes

CVE-2023-53151 · published 1 year ago
Summary

The Linux kernel’s RAID10 storage driver may stop a CPU core for a long time when many write operations are flushed. This can make the system appear frozen and increase latency. Updating to a kernel version that adds a pause check to the RAID10 code fixes the issue.

What to do
  • Update canonical linux-oracle to version 5.15.0-1061.67.
  • Update canonical linux-raspi to version 5.15.0-1058.61.
  • Update canonical linux-xilinx-zynqmp to version 5.15.0-1030.34.
  • Update canonical linux-bluefield to version 5.15.0-1044.46.
  • Update canonical linux-aws-5.4 to version 5.4.0-1113.123~18.04.1.
  • Update canonical linux-azure-5.4 to version 5.4.0-1119.126~18.04.2.
  • Update canonical linux-gcp-5.4 to version 5.4.0-1117.126~18.04.1.
  • Update canonical linux-hwe-5.4 to version 5.4.0-166.183~18.04.2.
  • Update canonical linux-ibm-5.4 to version 5.4.0-1060.65~18.04.1.
  • Update canonical linux-oracle-5.4 to version 5.4.0-1112.121~18.04.4.
  • Update canonical linux-raspi-5.4 to version 5.4.0-1097.109~18.04.2.
  • Update canonical linux to version 5.4.0-166.183.
  • Update canonical linux-aws to version 5.4.0-1113.123.
  • Update canonical linux-aws-5.15 to version 5.15.0-1063.69~20.04.1.
  • Update canonical linux-azure to version 5.4.0-1119.126.
  • Update canonical linux-azure-5.15 to version 5.15.0-1065.74~20.04.1.
  • Update canonical linux-bluefield to version 5.4.0-1074.80.
  • Update canonical linux-gcp to version 5.4.0-1117.126.
  • Update canonical linux-gcp-5.15 to version 5.15.0-1062.70~20.04.1.
  • Update canonical linux-hwe-5.15 to version 5.15.0-113.123~20.04.1.
  • Update canonical linux-ibm to version 5.4.0-1060.65.
  • Update canonical linux-ibm-5.15 to version 5.15.0-1057.60~20.04.1.
  • Update canonical linux-intel-iotg-5.15 to version 5.15.0-1058.64~20.04.1.
  • Update canonical linux-iot to version 5.4.0-1025.26.
  • Update canonical linux-kvm to version 5.4.0-1102.108.
  • Update canonical linux-lowlatency-hwe-5.15 to version 5.15.0-110.120~20.04.1.
  • Update canonical linux-nvidia-tegra-5.15 to version 5.15.0-1027.27~20.04.1.
  • Update canonical linux-oracle to version 5.4.0-1112.121.
  • Update canonical linux-oracle-5.15 to version 5.15.0-1061.67~20.04.1.
  • Update canonical linux-raspi to version 5.4.0-1097.109.
  • Update canonical linux-riscv-5.15 to version 5.15.0-1059.63~20.04.1.
  • Update canonical linux-xilinx-zynqmp to version 5.4.0-1033.37.
  • Update canonical linux-aws-fips to version 5.4.0-1113.123+fips1.
  • Update canonical linux-azure-fips to version 5.4.0-1119.126+fips1.
  • Update canonical linux-fips to version 5.4.0-1088.97.
  • Update canonical linux-gcp-fips to version 5.4.0-1117.126+fips1.
  • Update canonical linux to version 5.15.0-112.122.
  • Update canonical linux-aws to version 5.15.0-1063.69.
  • Update canonical linux-azure to version 5.15.0-1066.75.
  • Update canonical linux-gcp to version 5.15.0-1062.70.
  • Update canonical linux-gke to version 5.15.0-1060.66.
  • Update canonical linux-gkeop to version 5.15.0-1046.53.
  • Update canonical linux-ibm to version 5.15.0-1056.59.
  • Update canonical linux-intel-iotg to version 5.15.0-1058.64.
  • Update canonical linux-kvm to version 5.15.0-1060.65.
  • Update canonical linux-lowlatency to version 5.15.0-110.120.
  • Update canonical linux-nvidia to version 5.15.0-1058.59.
  • Update canonical linux-nvidia-tegra to version 5.15.0-1026.26.
  • Update canonical linux-nvidia-tegra-igx to version 5.15.0-1015.15.
  • Update canonical linux-aws-fips to version 5.15.0-1063.69+fips1.
  • Update canonical linux-azure-fips to version 5.15.0-1065.74+fips1.
  • Update canonical linux-fips to version 5.15.0-111.121+fips1.
  • Update canonical linux-gcp-fips to version 5.15.0-1062.70+fips1.
  • Update canonical linux-intel-iot-realtime to version 5.15.0-1056.58.
  • Update canonical linux-realtime to version 5.15.0-1064.72.
  • Update canonical linux-azure-fde-5.15 to version 5.15.0-1114.123~20.04.1.
  • Update debian linux to version 6.1.85-1.
  • Update debian linux to version 6.4.11-1.
  • Update linux kernel to version 6.4.7.
  • Update canonical linux-azure-fde to version 5.15.0-1067.76.1.
Affected software
Ecosystem VendorProductAffected versions
– linux linux_kernel < 4.14.322
>= 4.15, < 4.19.291
>= 4.20, < 5.4.251
>= 5.5, < 5.10.188
>= 5.11, < 5.15.150
>= 5.16, < 6.1.83
>= 6.2, < 6.4.7
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Ubuntu:Pro:14.04:LTS canonical linux All versions
Ubuntu:Pro:14.04:LTS canonical linux-aws All versions
Ubuntu:Pro:14.04:LTS canonical linux-azure All versions
Ubuntu:Pro:14.04:LTS canonical linux-lts-xenial All versions
Ubuntu:Pro:16.04:LTS canonical linux All versions
Ubuntu:Pro:16.04:LTS canonical linux-aws All versions
Ubuntu:Pro:16.04:LTS canonical linux-aws-hwe All versions
Ubuntu:22.04:LTS canonical linux-oem-6.5 All versions
Ubuntu:22.04:LTS canonical linux-oracle < 5.15.0-1061.67
Fix: upgrade to 5.15.0-1061.67
Ubuntu:22.04:LTS canonical linux-oracle-6.5 All versions
Ubuntu:22.04:LTS canonical linux-raspi < 5.15.0-1058.61
Fix: upgrade to 5.15.0-1058.61
Ubuntu:22.04:LTS canonical linux-realtime All versions
Ubuntu:22.04:LTS canonical linux-riscv All versions
Ubuntu:22.04:LTS canonical linux-riscv-5.19 All versions
Ubuntu:22.04:LTS canonical linux-riscv-6.5 All versions
Ubuntu:22.04:LTS canonical linux-starfive-5.19 All versions
Ubuntu:22.04:LTS canonical linux-starfive-6.2 All versions
Ubuntu:22.04:LTS canonical linux-starfive-6.5 All versions
Ubuntu:22.04:LTS canonical linux-xilinx-zynqmp < 5.15.0-1030.34
Fix: upgrade to 5.15.0-1030.34
Ubuntu:Nvidia-BlueField:22.04:LTS canonical linux-bluefield < 5.15.0-1044.46
Fix: upgrade to 5.15.0-1044.46
Ubuntu:Pro:FIPS-preview:22.04:LTS canonical linux-aws-fips All versions
Ubuntu:Pro:FIPS-preview:22.04:LTS canonical linux-azure-fips All versions
Ubuntu:Pro:FIPS-preview:22.04:LTS canonical linux-fips All versions
Ubuntu:Pro:16.04:LTS canonical linux-azure All versions
Ubuntu:Pro:16.04:LTS canonical linux-gcp All versions
Ubuntu:Pro:16.04:LTS canonical linux-hwe All versions
Ubuntu:16.04:LTS canonical linux-hwe-edge All versions
Ubuntu:Pro:16.04:LTS canonical linux-kvm All versions
Ubuntu:Pro:16.04:LTS canonical linux-oracle All versions
Ubuntu:Pro:FIPS:16.04:LTS canonical linux-fips All versions
Ubuntu:Pro:18.04:LTS canonical linux All versions
Ubuntu:Pro:18.04:LTS canonical linux-aws All versions
Ubuntu:18.04:LTS canonical linux-aws-5.0 All versions
Ubuntu:18.04:LTS canonical linux-aws-5.3 All versions
Ubuntu:Pro:18.04:LTS canonical linux-aws-5.4 < 5.4.0-1113.123~18.04.1
Fix: upgrade to 5.4.0-1113.123~18.04.1
Ubuntu:18.04:LTS canonical linux-azure All versions
Ubuntu:Pro:18.04:LTS canonical linux-azure-4.15 All versions
Ubuntu:18.04:LTS canonical linux-azure-5.3 All versions
Ubuntu:Pro:18.04:LTS canonical linux-azure-5.4 < 5.4.0-1119.126~18.04.2
Fix: upgrade to 5.4.0-1119.126~18.04.2
Ubuntu:18.04:LTS canonical linux-azure-edge All versions
Ubuntu:18.04:LTS canonical linux-gcp All versions
Ubuntu:Pro:18.04:LTS canonical linux-gcp-4.15 All versions
Ubuntu:18.04:LTS canonical linux-gcp-5.3 All versions
Ubuntu:Pro:18.04:LTS canonical linux-gcp-5.4 < 5.4.0-1117.126~18.04.1
Fix: upgrade to 5.4.0-1117.126~18.04.1
Ubuntu:18.04:LTS canonical linux-gke-4.15 All versions
Ubuntu:18.04:LTS canonical linux-gke-5.4 All versions
Ubuntu:18.04:LTS canonical linux-gkeop-5.4 All versions
Ubuntu:18.04:LTS canonical linux-hwe All versions
Ubuntu:Pro:18.04:LTS canonical linux-hwe-5.4 < 5.4.0-166.183~18.04.2
Fix: upgrade to 5.4.0-166.183~18.04.2
Showing 50 of 184. Show the rest
Ecosystem VendorProductAffected versions
Ubuntu:18.04:LTS canonical linux-hwe-edge All versions
Ubuntu:Pro:18.04:LTS canonical linux-ibm-5.4 < 5.4.0-1060.65~18.04.1
Fix: upgrade to 5.4.0-1060.65~18.04.1
Ubuntu:Pro:18.04:LTS canonical linux-kvm All versions
Ubuntu:18.04:LTS canonical linux-oem All versions
Ubuntu:Pro:18.04:LTS canonical linux-oracle All versions
Ubuntu:18.04:LTS canonical linux-oracle-5.0 All versions
Ubuntu:18.04:LTS canonical linux-oracle-5.3 All versions
Ubuntu:Pro:18.04:LTS canonical linux-oracle-5.4 < 5.4.0-1112.121~18.04.4
Fix: upgrade to 5.4.0-1112.121~18.04.4
Ubuntu:Pro:18.04:LTS canonical linux-raspi-5.4 < 5.4.0-1097.109~18.04.2
Fix: upgrade to 5.4.0-1097.109~18.04.2
Ubuntu:Pro:FIPS-updates:18.04:LTS canonical linux-aws-fips All versions
Ubuntu:Pro:FIPS-updates:18.04:LTS canonical linux-azure-fips All versions
Ubuntu:Pro:FIPS-updates:18.04:LTS canonical linux-fips All versions
Ubuntu:Pro:FIPS-updates:18.04:LTS canonical linux-gcp-fips All versions
Ubuntu:Pro:FIPS:18.04:LTS canonical linux-aws-fips All versions
Ubuntu:Pro:FIPS:18.04:LTS canonical linux-azure-fips All versions
Ubuntu:Pro:FIPS:18.04:LTS canonical linux-fips All versions
Ubuntu:Pro:FIPS:18.04:LTS canonical linux-gcp-fips All versions
Ubuntu:20.04:LTS canonical linux < 5.4.0-166.183
Fix: upgrade to 5.4.0-166.183
Ubuntu:20.04:LTS canonical linux-aws < 5.4.0-1113.123
Fix: upgrade to 5.4.0-1113.123
Ubuntu:20.04:LTS canonical linux-aws-5.15 < 5.15.0-1063.69~20.04.1
Fix: upgrade to 5.15.0-1063.69~20.04.1
Ubuntu:20.04:LTS canonical linux-azure < 5.4.0-1119.126
Fix: upgrade to 5.4.0-1119.126
Ubuntu:20.04:LTS canonical linux-azure-5.15 < 5.15.0-1065.74~20.04.1
Fix: upgrade to 5.15.0-1065.74~20.04.1
Ubuntu:20.04:LTS canonical linux-bluefield < 5.4.0-1074.80
Fix: upgrade to 5.4.0-1074.80
Ubuntu:20.04:LTS canonical linux-gcp < 5.4.0-1117.126
Fix: upgrade to 5.4.0-1117.126
Ubuntu:20.04:LTS canonical linux-gcp-5.15 < 5.15.0-1062.70~20.04.1
Fix: upgrade to 5.15.0-1062.70~20.04.1
Ubuntu:20.04:LTS canonical linux-hwe-5.15 < 5.15.0-113.123~20.04.1
Fix: upgrade to 5.15.0-113.123~20.04.1
Ubuntu:20.04:LTS canonical linux-ibm < 5.4.0-1060.65
Fix: upgrade to 5.4.0-1060.65
Ubuntu:20.04:LTS canonical linux-ibm-5.15 < 5.15.0-1057.60~20.04.1
Fix: upgrade to 5.15.0-1057.60~20.04.1
Ubuntu:20.04:LTS canonical linux-intel-iotg-5.15 < 5.15.0-1058.64~20.04.1
Fix: upgrade to 5.15.0-1058.64~20.04.1
Ubuntu:20.04:LTS canonical linux-iot < 5.4.0-1025.26
Fix: upgrade to 5.4.0-1025.26
Ubuntu:20.04:LTS canonical linux-kvm < 5.4.0-1102.108
Fix: upgrade to 5.4.0-1102.108
Ubuntu:20.04:LTS canonical linux-lowlatency-hwe-5.15 < 5.15.0-110.120~20.04.1
Fix: upgrade to 5.15.0-110.120~20.04.1
Ubuntu:20.04:LTS canonical linux-nvidia-tegra-5.15 < 5.15.0-1027.27~20.04.1
Fix: upgrade to 5.15.0-1027.27~20.04.1
Ubuntu:20.04:LTS canonical linux-oracle < 5.4.0-1112.121
Fix: upgrade to 5.4.0-1112.121
Ubuntu:20.04:LTS canonical linux-oracle-5.15 < 5.15.0-1061.67~20.04.1
Fix: upgrade to 5.15.0-1061.67~20.04.1
Ubuntu:20.04:LTS canonical linux-raspi < 5.4.0-1097.109
Fix: upgrade to 5.4.0-1097.109
Ubuntu:20.04:LTS canonical linux-riscv-5.15 < 5.15.0-1059.63~20.04.1
Fix: upgrade to 5.15.0-1059.63~20.04.1
Ubuntu:20.04:LTS canonical linux-xilinx-zynqmp < 5.4.0-1033.37
Fix: upgrade to 5.4.0-1033.37
Ubuntu:20.04:LTS canonical linux-aws-5.11 All versions
Ubuntu:20.04:LTS canonical linux-aws-5.13 All versions
Ubuntu:20.04:LTS canonical linux-aws-5.8 All versions
Ubuntu:20.04:LTS canonical linux-azure-5.11 All versions
Ubuntu:20.04:LTS canonical linux-azure-5.13 All versions
Ubuntu:20.04:LTS canonical linux-azure-5.8 All versions
Ubuntu:20.04:LTS canonical linux-azure-fde All versions
Ubuntu:Pro:20.04:LTS canonical linux-azure-fde-5.15 < 5.15.0-1114.123~20.04.1
Fix: upgrade to 5.15.0-1114.123~20.04.1
Ubuntu:20.04:LTS canonical linux-gcp-5.11 All versions
Ubuntu:20.04:LTS canonical linux-gcp-5.13 All versions
Ubuntu:20.04:LTS canonical linux-gcp-5.8 All versions
Ubuntu:20.04:LTS canonical linux-gke All versions
Ubuntu:20.04:LTS canonical linux-gke-5.15 All versions
Ubuntu:20.04:LTS canonical linux-gkeop All versions
Ubuntu:20.04:LTS canonical linux-gkeop-5.15 All versions
Ubuntu:20.04:LTS canonical linux-hwe-5.11 All versions
Ubuntu:20.04:LTS canonical linux-hwe-5.13 All versions
Ubuntu:20.04:LTS canonical linux-hwe-5.8 All versions
Ubuntu:20.04:LTS canonical linux-intel-5.13 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.10 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.13 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.14 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.6 All versions
Ubuntu:20.04:LTS canonical linux-oracle-5.11 All versions
Ubuntu:20.04:LTS canonical linux-oracle-5.13 All versions
Ubuntu:20.04:LTS canonical linux-oracle-5.8 All versions
Ubuntu:20.04:LTS canonical linux-raspi2 All versions
Ubuntu:20.04:LTS canonical linux-riscv All versions
Ubuntu:20.04:LTS canonical linux-riscv-5.11 All versions
Ubuntu:20.04:LTS canonical linux-riscv-5.8 All versions
Ubuntu:Pro:FIPS-updates:20.04:LTS canonical linux-aws-fips < 5.4.0-1113.123+fips1
Fix: upgrade to 5.4.0-1113.123+fips1
Ubuntu:Pro:FIPS-updates:20.04:LTS canonical linux-azure-fips < 5.4.0-1119.126+fips1
Fix: upgrade to 5.4.0-1119.126+fips1
Ubuntu:Pro:FIPS-updates:20.04:LTS canonical linux-fips < 5.4.0-1088.97
Fix: upgrade to 5.4.0-1088.97
Ubuntu:Pro:FIPS-updates:20.04:LTS canonical linux-gcp-fips < 5.4.0-1117.126+fips1
Fix: upgrade to 5.4.0-1117.126+fips1
Ubuntu:Pro:FIPS:20.04:LTS canonical linux-aws-fips All versions
Ubuntu:Pro:FIPS:20.04:LTS canonical linux-azure-fips All versions
Ubuntu:Pro:FIPS:20.04:LTS canonical linux-fips All versions
Ubuntu:Pro:FIPS:20.04:LTS canonical linux-gcp-fips All versions
Ubuntu:22.04:LTS canonical linux < 5.15.0-112.122
Fix: upgrade to 5.15.0-112.122
Ubuntu:22.04:LTS canonical linux-allwinner-5.19 All versions
Ubuntu:22.04:LTS canonical linux-aws < 5.15.0-1063.69
Fix: upgrade to 5.15.0-1063.69
Ubuntu:22.04:LTS canonical linux-aws-5.19 All versions
Ubuntu:22.04:LTS canonical linux-aws-6.2 All versions
Ubuntu:22.04:LTS canonical linux-aws-6.5 All versions
Ubuntu:22.04:LTS canonical linux-azure < 5.15.0-1066.75
Fix: upgrade to 5.15.0-1066.75
Ubuntu:22.04:LTS canonical linux-azure-5.19 All versions
Ubuntu:22.04:LTS canonical linux-azure-6.2 All versions
Ubuntu:22.04:LTS canonical linux-azure-6.5 All versions
Ubuntu:22.04:LTS canonical linux-azure-fde < 5.15.0-1067.76.1
Fix: upgrade to 5.15.0-1067.76.1
Ubuntu:22.04:LTS canonical linux-azure-fde-5.19 All versions
Ubuntu:22.04:LTS canonical linux-azure-fde-6.2 All versions
Ubuntu:22.04:LTS canonical linux-gcp < 5.15.0-1062.70
Fix: upgrade to 5.15.0-1062.70
Ubuntu:22.04:LTS canonical linux-gcp-5.19 All versions
Ubuntu:22.04:LTS canonical linux-gcp-6.2 All versions
Ubuntu:22.04:LTS canonical linux-gcp-6.5 All versions
Ubuntu:22.04:LTS canonical linux-gke < 5.15.0-1060.66
Fix: upgrade to 5.15.0-1060.66
Ubuntu:22.04:LTS canonical linux-gkeop < 5.15.0-1046.53
Fix: upgrade to 5.15.0-1046.53
Ubuntu:22.04:LTS canonical linux-hwe-5.19 All versions
Ubuntu:22.04:LTS canonical linux-hwe-6.2 All versions
Ubuntu:22.04:LTS canonical linux-hwe-6.5 All versions
Ubuntu:22.04:LTS canonical linux-ibm < 5.15.0-1056.59
Fix: upgrade to 5.15.0-1056.59
Ubuntu:22.04:LTS canonical linux-intel-iot-realtime All versions
Ubuntu:22.04:LTS canonical linux-intel-iotg < 5.15.0-1058.64
Fix: upgrade to 5.15.0-1058.64
Ubuntu:22.04:LTS canonical linux-kvm < 5.15.0-1060.65
Fix: upgrade to 5.15.0-1060.65
Ubuntu:22.04:LTS canonical linux-lowlatency < 5.15.0-110.120
Fix: upgrade to 5.15.0-110.120
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-5.19 All versions
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-6.2 All versions
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-6.5 All versions
Ubuntu:22.04:LTS canonical linux-nvidia < 5.15.0-1058.59
Fix: upgrade to 5.15.0-1058.59
Ubuntu:22.04:LTS canonical linux-nvidia-6.2 All versions
Ubuntu:22.04:LTS canonical linux-nvidia-6.5 All versions
Ubuntu:22.04:LTS canonical linux-nvidia-tegra < 5.15.0-1026.26
Fix: upgrade to 5.15.0-1026.26
Ubuntu:22.04:LTS canonical linux-nvidia-tegra-igx < 5.15.0-1015.15
Fix: upgrade to 5.15.0-1015.15
Ubuntu:22.04:LTS canonical linux-oem-5.17 All versions
Ubuntu:22.04:LTS canonical linux-oem-6.0 All versions
Ubuntu:22.04:LTS canonical linux-oem-6.1 All versions
Ubuntu:Pro:FIPS-preview:22.04:LTS canonical linux-gcp-fips All versions
Ubuntu:Pro:FIPS-updates:22.04:LTS canonical linux-aws-fips < 5.15.0-1063.69+fips1
Fix: upgrade to 5.15.0-1063.69+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS canonical linux-azure-fips < 5.15.0-1065.74+fips1
Fix: upgrade to 5.15.0-1065.74+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS canonical linux-fips < 5.15.0-111.121+fips1
Fix: upgrade to 5.15.0-111.121+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS canonical linux-gcp-fips < 5.15.0-1062.70+fips1
Fix: upgrade to 5.15.0-1062.70+fips1
Ubuntu:Pro:Realtime:22.04:LTS canonical linux-intel-iot-realtime < 5.15.0-1056.58
Fix: upgrade to 5.15.0-1056.58
Ubuntu:Pro:Realtime:22.04:LTS canonical linux-realtime < 5.15.0-1064.72
Fix: upgrade to 5.15.0-1064.72
Ubuntu:24.04:LTS canonical linux-azure-6.11 All versions
Ubuntu:24.04:LTS canonical linux-gcp-6.11 All versions
Ubuntu:24.04:LTS canonical linux-hwe-6.11 All versions
Ubuntu:24.04:LTS canonical linux-intel All versions
Ubuntu:24.04:LTS canonical linux-lowlatency-hwe-6.11 All versions
Ubuntu:24.04:LTS canonical linux-oem-6.11 All versions
Ubuntu:24.04:LTS canonical linux-oem-6.8 All versions
Ubuntu:24.04:LTS canonical linux-raspi-realtime All versions
Ubuntu:24.04:LTS canonical linux-realtime All versions
Ubuntu:24.04:LTS canonical linux-riscv All versions
Debian:12 debian linux < 6.1.85-1
Fix: upgrade to 6.1.85-1
Debian:13 debian linux < 6.4.11-1
Fix: upgrade to 6.4.11-1
Linux linux kernel >= 6.2.0, < 6.4.7
Fix: upgrade to 6.4.7
Original advisory text
md/raid10: prevent soft lockup while flush writes
In the Linux kernel, the following vulnerability has been resolved: md/raid10: prevent soft lockup while flush writes Currently, there is no limit for raid1/raid10 plugged bio. While flushing writes, raid1 has cond_resched() while raid10 doesn't, and too many writes can cause soft lockup. Follow up soft lockup can be triggered easily with writeback test for raid10 with ramdisks: watchdog: BUG: soft lockup - CPU#10 stuck for 27s! [md0_raid10:1293] Call Trace: <TASK> call_rcu+0x16/0x20 put_object+0x41/0x80 __delete_object+0x50/0x90 delete_object_full+0x2b/0x40 kmemleak_free+0x46/0xa0 slab_free_freelist_hook.constprop.0+0xed/0x1a0 kmem_cache_free+0xfd/0x300 mempool_free_slab+0x1f/0x30 mempool_free+0x3a/0x100 bio_free+0x59/0x80 bio_put+0xcf/0x2c0 free_r10bio+0xbf/0xf0 raid_end_bio_io+0x78/0xb0 one_write_done+0x8a/0xa0 raid10_end_write_request+0x1b4/0x430 bio_endio+0x175/0x320 brd_submit_bio+0x3b9/0x9b7 [brd] __submit_bio+0x69/0xe0 submit_bio_noacct_nocheck+0x1e6/0x5a0 submit_bio_noacct+0x38c/0x7e0 flush_pending_writes+0xf0/0x240 raid10d+0xac/0x1ed0 Fix the problem by adding cond_resched() to raid10 like what raid1 did. Note that unlimited plugged bio still need to be optimized, for example, in the case of lots of dirty pages writeback, this will take lots of memory and io will spend a long time in plug, hence io latency is bad.
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
6.8 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-667Improper Locking
Timeline
Published15 Sep 2025
Updated3 Nov 2026
First seen7 Mar 2026
Track software like this
Free during beta