Description
In the Linux kernel, the following vulnerability has been resolved:
md: Don't ignore suspended array in md_check_recovery()
mddev_suspend() never stop sync_thread, hence it doesn't make sense to
ignore suspended array in md_check_recovery(), which might cause
sync_thread can't be unregistered.
After commit f52f5c71f3d4 ("md: fix stopping sync thread"), following
hang can be triggered by test shell/integrity-caching.sh:
1) suspend the array:
raid_postsuspend
mddev_suspend
2) stop the array:
raid_dtr
md_stop
__md_stop_writes
stop_sync_thread
set_bit(MD_RECOVERY_INTR, &mddev->recovery);
md_wakeup_thread_directly(mddev->sync_thread);
wait_event(..., !test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
3) sync thread done:
md_do_sync
set_bit(MD_RECOVERY_DONE, &mddev->recovery);
md_wakeup_thread(mddev->thread);
4) daemon thread can't unregister sync thread:
md_check_recovery
if (mddev->suspended)
return; -> return directly
md_read_sync_thread
clear_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
-> MD_RECOVERY_RUNNING can't be cleared, hence step 2 hang;
This problem is not just related to dm-raid, fix it by ignoring
suspended array in md_check_recovery(). And follow up patches will
improve dm-raid better to frozen sync thread during suspend.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 3.0 | 6.7.7 |
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 ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.7.7-1 | — |
| Debian 13 | linux | 6.7.7-1 | — |
| Debian 12 | linux | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | No fix yet | — |
| Ubuntu 22.04 LTS | linux +49 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2002.2 | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime +1 | No fix yet | — |
| 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-fips +3 | No fix yet | — |
| 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 +21 | No fix yet | — |
| 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 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.4.0-503.11.1.el9_5 | RHSA-2024:9315 |
| RHEL 9 | rv +67 | 5.14.0-503.11.1.el9_5 | RHSA-2024:9315 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | kernel-64kb | 6.4.0-150600.23.14.1 | SUSE-SU-2024:4318-1, SUSE-SU-2024:2571-1 |
| SLES 15 SP6 | kernel-azure +1 | 6.4.0-150600.8.8.2 | SUSE-SU-2024:3984-1, SUSE-SU-2024:2896-1 |
| SLES 15 SP6 | kernel-coco +3 | 6.4.0-15061.9.coco15sp6.1 | SUSE-SU-2024:4387-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.14.2.150600.12.4.3 | SUSE-SU-2024:4318-1, SUSE-SU-2024:2571-1 |
| SLES 15 SP6 | kernel-docs +5 | 6.4.0-150600.23.14.2 | SUSE-SU-2024:4318-1, SUSE-SU-2024:2571-1 |
| SLES 15 SP6 | kernel-syms-azure | 6.4.0-150600.8.8.1 | SUSE-SU-2024:3984-1, SUSE-SU-2024:2896-1 |
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.68.1 | SUSE-SU-2025:0577-2, SUSE-SU-2025:0577-1, SUSE-SU-2024:2190-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.57.1 | SUSE-SU-2024:2019-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.68.1.150500.6.31.1 | SUSE-SU-2025:0577-2, SUSE-SU-2025:0577-1, SUSE-SU-2024:2190-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | kernel-default-base | 5.14.21-150500.55.94.1.150500.6.43.1 | SUSE-SU-2025:0577-2, SUSE-SU-2025:0577-1 |
| SLES for SAP 15 SP5 | kernel-docs +4 | 5.14.21-150500.55.94.1 | SUSE-SU-2025:0577-2, SUSE-SU-2025:0577-1 |
| SLE Micro 6.1 | kernel-default-base | 6.4.0-24.1.21.4 | SUSE-SU-2025:20247-1 |
| SLE Micro 6.1 | kernel-livepatch-MICRO-6-0-RT_Update_4 | 1-1.1 | SUSE-SU-2025:20246-1 |
| SLE Micro 6.1 | kernel-livepatch-MICRO-6-0_Update_4 | 1-1.2 | SUSE-SU-2025:20247-1 |
| SLE Micro 6.1 | kernel-rt +1 | 6.4.0-22.1 | SUSE-SU-2025:20246-1 |
| SLE Micro 6.1 | kernel-source +2 | 6.4.0-24.1 | SUSE-SU-2025:20247-1 |
| SLE Micro 6.0 | kernel-default-base | 6.4.0-17.1.1.51 | SUSE-SU-2025:20164-1, SUSE-SU-2025:20008-1 |
| SLE Micro 6.0 | kernel-livepatch-MICRO-6-0-RT_Update_4 | 1-1.1 | SUSE-SU-2025:20163-1 |
| SLE Micro 6.0 | kernel-livepatch-MICRO-6-0_Update_4 | 1-1.2 | SUSE-SU-2025:20164-1 |
| SLE Micro 6.0 | kernel-rt +1 | 6.4.0-9.1 | SUSE-SU-2025:20163-1, SUSE-SU-2025:20028-1 |
| SLE Micro 6.0 | kernel-source +2 | 6.4.0-18.1 | SUSE-SU-2025:20164-1, SUSE-SU-2025:20008-1 |
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.68.1 | SUSE-SU-2025:0577-2, SUSE-SU-2025:0577-1, SUSE-SU-2024:2190-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.68.1.150500.6.31.1 | SUSE-SU-2025:0577-2, SUSE-SU-2025:0577-1, SUSE-SU-2024:2190-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.58.1 | SUSE-SU-2025:0556-1, SUSE-SU-2024:2008-1 |
| SLE Micro 5.5 | kernel-source | 5.14.21-150500.55.94.1 | SUSE-SU-2025:0577-2, SUSE-SU-2025:0577-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.14.2 | SUSE-SU-2024:4318-1, SUSE-SU-2024:2571-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_1 | 1-150600.1.5.1 | SUSE-SU-2024:2973-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_2 | 1-150600.1.3.2 | SUSE-SU-2024:3195-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_5 | 1-150600.1.3.1 | SUSE-SU-2024:3986-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_2 | 1-150600.13.3.2 | SUSE-SU-2024:2571-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_6 | 1-150600.13.3.5 | SUSE-SU-2024:4318-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.68.1 | SUSE-SU-2025:0577-1, SUSE-SU-2024:2190-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_15 +2 | 1-150500.11.3.1 | SUSE-SU-2025:0577-1, SUSE-SU-2024:2190-1, SUSE-SU-2024:2008-1 |
| SLE HPC 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.94.1 | SUSE-SU-2025:0577-2, SUSE-SU-2025:0577-1 |
| SLE HPC 15 SP5 | kernel-default-base | 5.14.21-150500.55.94.1.150500.6.43.1 | SUSE-SU-2025:0577-2, SUSE-SU-2025:0577-1 |
| SUSE Real Time Module 15 SP6 | kernel-rt +3 | 6.4.0-150600.10.5.1 | SUSE-SU-2024:3986-1, SUSE-SU-2024:3195-1, SUSE-SU-2024:2973-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.58.1 | SUSE-SU-2024:2008-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | dtb-aarch64 +1 | 6.4.0-150600.23.14.1 | SUSE-SU-2024:4318-1, SUSE-SU-2024:2571-1 |
| openSUSE Leap 15.6 | kernel-azure +1 | 6.4.0-150600.8.8.2 | SUSE-SU-2024:3984-1, SUSE-SU-2024:2896-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.14.2.150600.12.4.3 | SUSE-SU-2024:4318-1, SUSE-SU-2024:2571-1 |
| openSUSE Leap 15.6 | kernel-docs +8 | 6.4.0-150600.23.14.2 | SUSE-SU-2024:4318-1, SUSE-SU-2024:2571-1 |
| openSUSE Leap 15.6 | kernel-rt +3 | 6.4.0-150600.10.5.1 | SUSE-SU-2024:3986-1, SUSE-SU-2024:3195-1, SUSE-SU-2024:2973-1 |
| openSUSE Leap 15.6 | kernel-syms-azure | 6.4.0-150600.8.8.1 | SUSE-SU-2024:3984-1, SUSE-SU-2024:2896-1 |
| openSUSE Leap 15.5 | dtb-aarch64 +10 | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.57.1 | SUSE-SU-2024:2019-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.68.1.150500.6.31.1 | SUSE-SU-2024:2190-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.58.1 | SUSE-SU-2024:2008-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | kernel | No fix yet | — |
| Azure Linux 2 (CBL-Mariner) | kernel | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bpftool | 7.4.0-503.11.1.el9_5 | ELSA-2024-9315 |
| Oracle Linux 9 | rv +28 | 5.14.0-503.11.1.el9_5 | ELSA-2024-9315 |
Advisories 23
- RHSA-2024:9315 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- WID-SEC-2024-0773 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 25, 2026
- SUSE-SU-2025:20163-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20246-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20164-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20008-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20247-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20028-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2024:2973-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2019-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4318-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0556-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3984-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3986-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2896-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0577-2 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2190-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0577-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2008-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4387-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3195-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2571-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2024-9315 Moderate: kernel security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 14, 2024