Description
A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | kernel | kernel 5.15 rc6 | — |
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 | 5.14.16-1 | — |
| Debian 13 | linux | 5.14.16-1 | — |
| Debian 12 | linux | 5.14.16-1 | — |
| Debian 9 | linux | 4.9.320-2 | DLA-3065-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-realtime +1 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-92.103 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1061.64 | — |
| Ubuntu 20.04 LTS | linux-aws-5.11 +2 | 5.11.0-1023.24~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1065.68 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1023.26 | — |
| Ubuntu 20.04 LTS | linux-gcp +1 | 5.4.0-1059.63 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.11 | 5.11.0-1024.26~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke | 5.4.0-1057.60 | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1029.30 | — |
| Ubuntu 20.04 LTS | linux-hwe-5.13 | 5.13.0-23.23~20.04.2 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1010.11 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1051.53 | — |
| Ubuntu 20.04 LTS | linux-oem-5.10 | 5.10.0-1051.53 | — |
| Ubuntu 20.04 LTS | linux-oem-5.13 | 5.13.0-1026.32 | — |
| Ubuntu 20.04 LTS | linux-oem-5.14 | 5.14.0-1007.7 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1048.53 | — |
| Ubuntu 20.04 LTS | linux-riscv +10 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-riscv-5.11 | 5.11.0-1024.25~20.04.1 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-184.194 | USN-5466-1 |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1133.143 | USN-5466-1 |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1061.64~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1142.156 | USN-5466-1 |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1065.68~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-dell300x | 4.15.0-1047.52 | — |
| Ubuntu 18.04 LTS | linux-gcp +12 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1127.142 | USN-5466-1 |
| Ubuntu 18.04 LTS | linux-gcp-5.4 +1 | 5.4.0-1059.63~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gke-5.4 | 5.4.0-1057.60~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gkeop-5.4 | 5.4.0-1029.30~18.04.2 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-92.103~18.04.2 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1119.123 | USN-5466-1 |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1098.108 | USN-5466-1 |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1048.53~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1114.122 | USN-5466-1 |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1132.142 | USN-5466-1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 | 5.4.0-1069.73+fips2 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1073.76+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1038.44 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1067.71~20.04.1 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2072.76 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2053.58 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1090.100 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2037.41 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1088.95 | — |
| Ubuntu Pro 16.04 LTS | linux | 4.4.0-239.273 | USN-6014-1 |
| Ubuntu Pro 16.04 LTS | linux-aws | 4.4.0-1155.170 | USN-6001-1 |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1133.143~16.04.1 | USN-5466-1 |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1142.156~16.04.1 | USN-5466-1 |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1127.142~16.04.1 | USN-5466-1 |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-184.194~16.04.1 | USN-5466-1 |
| Ubuntu Pro 16.04 LTS | linux-kvm | 4.4.0-1118.128 | USN-6014-1 |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1098.108~16.04.1 | USN-5466-1 |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1117.123 | USN-6013-1 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1142.156~14.04.1 | USN-5466-1 |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-239.273~14.04.1 | USN-6014-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-150300.59.43.1 | SUSE-SU-2022:0198-1 |
| SLES 15 SP3 | kernel-azure +2 | 5.3.18-150300.38.37.1 | SUSE-SU-2022:0169-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.43.1.150300.18.27.1 | SUSE-SU-2022:0198-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SLES 15 SP1 | kernel-docs +5 | 4.12.14-197.105.1 | SUSE-SU-2022:0366-1 |
| SLES 15 | kernel-docs +6 | 4.12.14-150.83.1 | SUSE-SU-2022:0367-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.85.1 | SUSE-SU-2022:0080-1 |
| SLES 12 SP5 | kernel-docs | 4.12.14-122.110.2 | SUSE-SU-2022:0364-1 |
| SLES 12 SP5 | kernel-syms +3 | 4.12.14-122.110.1 | SUSE-SU-2022:0364-1 |
Show 33 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | kernel-syms +2 | 4.12.14-95.88.1 | SUSE-SU-2022:0371-1 |
| SLES 12 SP3 | kernel-syms +2 | 4.4.180-94.153.1 | SUSE-SU-2022:0362-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_42 | 1-4.3.1 | SUSE-SU-2022:0362-1 |
| SLES 12 SP2 | kernel-syms +2 | 4.4.121-92.164.1 | SUSE-SU-2022:0477-1 |
| SLES for SAP 15 SP2 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SLES for SAP 15 SP2 | kernel-docs +5 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SLES for SAP 15 SP1 | kernel-docs +4 | 4.12.14-197.105.1 | SUSE-SU-2022:0366-1 |
| SLES for SAP 15 | kernel-docs +5 | 4.12.14-150.83.1 | SUSE-SU-2022:0367-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.85.1 | SUSE-SU-2022:0080-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.110.1 | SUSE-SU-2022:0364-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.88.1 | SUSE-SU-2022:0371-1 |
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.180-94.153.1 | SUSE-SU-2022:0362-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_42 | 1-4.3.1 | SUSE-SU-2022:0362-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.78.1 | SUSE-SU-2022:0555-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.43.1 | SUSE-SU-2022:0198-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.43.1.150300.18.27.1 | SUSE-SU-2022:0198-1 |
| SLE Micro 5.1 | kernel-rt | 5.3.18-150300.71.1 | SUSE-SU-2022:0288-1 |
| SLE Micro 5.0 | kernel-default | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SLE Micro 5.0 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SLE Micro 5.0 | kernel-rt | 5.3.18-68.1 | SUSE-SU-2022:0289-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.43.1 | SUSE-SU-2022:0198-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_12 | 1-150300.7.3.1 | SUSE-SU-2022:0198-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_23 | 1-5.3.1 | SUSE-SU-2022:0197-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-197.105.1 | SUSE-SU-2022:0366-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_28 | 1-3.3.1 | SUSE-SU-2022:0366-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-150.83.1 | SUSE-SU-2022:0367-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_27 | 1-1.5.1 | SUSE-SU-2022:0367-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.110.1 | SUSE-SU-2022:0364-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_28 | 1-8.3.2 | SUSE-SU-2022:0364-1 |
| SLE Live Patching 12 SP4 | kernel-default | 4.12.14-95.88.1 | SUSE-SU-2022:0371-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_24 | 1-6.5.1 | SUSE-SU-2022:0371-1 |
| SLE HPC 15 SP2 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SLE HPC 15 SP2 | kernel-docs +5 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SLE HPC 15 SP1 | kernel-docs +4 | 4.12.14-197.105.1 | SUSE-SU-2022:0366-1 |
| SLE HPC 15 | kernel-docs +5 | 4.12.14-150.83.1 | SUSE-SU-2022:0367-1 |
| SUSE Real Time Module 15 SP3 | kernel-rt +3 | 5.3.18-150300.71.1 | SUSE-SU-2022:0288-1 |
| SUSE Real Time Module 15 SP2 | kernel-rt +3 | 5.3.18-68.1 | SUSE-SU-2022:0289-1 |
| SUSE OpenStack Cloud Crowbar 9 | kernel-syms +2 | 4.12.14-95.88.1 | SUSE-SU-2022:0371-1 |
| SUSE OpenStack Cloud Crowbar 8 | kernel-syms +2 | 4.4.180-94.153.1 | SUSE-SU-2022:0362-1 |
| SUSE OpenStack Cloud Crowbar 8 | kgraft-patch-SLE12-SP3_Update_42 | 1-4.3.1 | SUSE-SU-2022:0362-1 |
| SUSE OpenStack Cloud 9 | kernel-syms +2 | 4.12.14-95.88.1 | SUSE-SU-2022:0371-1 |
| SUSE OpenStack Cloud 8 | kernel-syms +2 | 4.4.180-94.153.1 | SUSE-SU-2022:0362-1 |
| SUSE OpenStack Cloud 8 | kgraft-patch-SLE12-SP3_Update_42 | 1-4.3.1 | SUSE-SU-2022:0362-1 |
| SUSE Manager Server 4.1 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SUSE Manager Server 4.1 | kernel-docs +5 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SUSE Manager Retail Branch Server 4.1 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SUSE Manager Retail Branch Server 4.1 | kernel-docs +4 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SUSE Manager Proxy 4.1 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SUSE Manager Proxy 4.1 | kernel-docs +4 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SUSE HPE Helion OpenStack 8 | kernel-syms +2 | 4.4.180-94.153.1 | SUSE-SU-2022:0362-1 |
| SUSE HPE Helion OpenStack 8 | kgraft-patch-SLE12-SP3_Update_42 | 1-4.3.1 | SUSE-SU-2022:0362-1 |
| SUSE Enterprise Storage 7 | kernel-default-base | 5.3.18-24.99.1.9.46.1 | SUSE-SU-2022:0197-1 |
| SUSE Enterprise Storage 7 | kernel-docs +5 | 5.3.18-24.99.1 | SUSE-SU-2022:0197-1 |
| SUSE Enterprise Storage 6 | kernel-docs +4 | 4.12.14-197.105.1 | SUSE-SU-2022:0366-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | dtb-aarch64 +7 | 5.3.18-150300.59.43.1 | openSUSE-SU-2022:0198-1 |
| openSUSE Leap 15.3 | kernel-azure +2 | 5.3.18-150300.38.37.1 | openSUSE-SU-2022:0169-1 |
| openSUSE Leap 15.3 | kernel-debug +4 | 4.12.14-197.105.1 | openSUSE-SU-2022:0366-1, openSUSE-SU-2022:0198-1 |
| openSUSE Leap 15.3 | kernel-default-base | 5.3.18-150300.59.43.1.150300.18.27.1 | openSUSE-SU-2022:0198-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-124.62.3.el7uek | ELSA-2022-9348, ELSA-2022-9313 |
| Oracle Linux 7 | kernel-uek-container | 4.14.35-2047.512.6.el7 | ELSA-2022-9314 |
| Oracle Linux 7 | perf +5 | 4.14.35-2047.512.6.el7uek | ELSA-2022-9313 |
Advisories 27
- USN-6014-1 linux, linux-kvm, linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6013-1 linux-aws vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-6001-1 linux-aws vulnerabilities Ubuntu Security Notices (USN) · Oct 23, 2026
- USN-5466-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- DLA-3065-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2022:0364-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0289-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0169-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0169-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0080-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0555-1 Security update for the Linux RT Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0477-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0362-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0366-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0367-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0198-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0371-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0197-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0288-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0198-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0366-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2022-0159 Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Jan 26, 2025
- SSA-419740 SSA-419740: Multiple Third-Party Component Vulnerabilities in RUGGEDCOM and SCALANCE Products before V7.2 Siemens ProductCERT · Mar 14, 2023
- ICSA-23-075-01 Siemens SCALANCE, RUGGEDCOM Third-Party CISA ICS & IT advisories · Mar 14, 2023
- ELSA-2022-9348 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 3, 2022
- ELSA-2022-9314 Important: Unbreakable Enterprise kernel-container security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 25, 2022
- ELSA-2022-9313 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 25, 2022