Description
A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel versions prior to 5.16 rc2.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | kernel | kernel 5.16 rc2 | — |
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 | 5.15.5-1 | — |
| Debian 13 | linux | 5.15.5-1 | — |
| Debian 12 | linux | 5.15.5-1 | — |
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 | 5.4.0-164.181 | USN-6417-1 |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1111.120 | USN-6417-1 |
| Ubuntu 20.04 LTS | linux-aws-5.11 +1 | 5.11.0-1028.31~20.04.1 | USN-5265-1 |
| Ubuntu 20.04 LTS | linux-aws-5.13 | 5.13.0-1012.13~20.04.1 | USN-5265-1 |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1117.124 | USN-6417-1 |
| Ubuntu 20.04 LTS | linux-azure-5.11 | 5.11.0-1028.31~20.04.2 | USN-5265-1 |
| Ubuntu 20.04 LTS | linux-azure-5.13 | 5.13.0-1013.15~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1072.78 | USN-6417-1 |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1115.124 | USN-6417-1 |
| Ubuntu 20.04 LTS | linux-gcp-5.11 | 5.11.0-1029.33~20.04.3 | USN-5265-1 |
| Ubuntu 20.04 LTS | linux-gcp-5.13 | 5.13.0-1013.16~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke +13 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1078.82 | USN-6417-1 |
| Ubuntu 20.04 LTS | linux-hwe-5.13 | 5.13.0-28.31~20.04.1 | USN-5265-1 |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1058.63 | USN-6417-1 |
| Ubuntu 20.04 LTS | linux-iot | 5.4.0-1023.24 | USN-6417-1 |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1100.106 | USN-6417-1 |
| Ubuntu 20.04 LTS | linux-oem-5.10 | 5.10.0-1053.55 | USN-5207-1 |
| Ubuntu 20.04 LTS | linux-oem-5.13 | 5.13.0-1029.36 | USN-5265-1 |
| Ubuntu 20.04 LTS | linux-oem-5.14 | 5.14.0-1022.24 | USN-5278-1 |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1110.119 | USN-6417-1 |
| Ubuntu 20.04 LTS | linux-oracle-5.13 | 5.13.0-1016.20~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1095.106 | USN-6417-1 |
| Ubuntu 20.04 LTS | linux-xilinx-zynqmp | 5.4.0-1031.35 | USN-6417-1 |
| Ubuntu 18.04 LTS | linux-gcp +13 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1111.120+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1117.124+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1086.95 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1115.124+fips1 | — |
| Ubuntu Pro 18.04 LTS | linux-aws-5.4 | 5.4.0-1111.120~18.04.1 | USN-6417-1 |
| Ubuntu Pro 18.04 LTS | linux-azure-5.4 | 5.4.0-1117.124~18.04.1 | USN-6417-1 |
| Ubuntu Pro 18.04 LTS | linux-gcp-5.4 | 5.4.0-1115.124~18.04.1 | USN-6417-1 |
| Ubuntu Pro 18.04 LTS | linux-hwe-5.4 | 5.4.0-164.181~18.04.1 | USN-6417-1 |
| Ubuntu Pro 18.04 LTS | linux-ibm-5.4 | 5.4.0-1058.63~18.04.1 | USN-6417-1 |
| Ubuntu Pro 18.04 LTS | linux-oracle-5.4 | 5.4.0-1110.119~18.04.1 | USN-6417-1 |
| Ubuntu Pro 18.04 LTS | linux-raspi-5.4 | 5.4.0-1095.106~18.04.1 | USN-6417-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-59.40.1 | SUSE-SU-2022:0131-1 |
| SLES 15 SP3 | kernel-azure +2 | 5.3.18-38.34.1 | SUSE-SU-2022:0056-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-59.40.1.18.25.1 | SUSE-SU-2022:0131-1 |
| 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 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 |
| SLE Micro 5.1 | kernel-default | 5.3.18-59.40.1 | SUSE-SU-2022:0131-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-59.40.1.18.25.1 | SUSE-SU-2022:0131-1 |
| SLE Micro 5.1 | kernel-rt | 5.3.18-68.1 | SUSE-SU-2022:0079-1 |
| 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 | 5.3.18-65.2 | SUSE-SU-2022:0181-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-59.40.1 | SUSE-SU-2022:0131-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_0 | 13-150200.3.1 | SUSE-SU-2022:0978-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_1 +2 | 11-150300.2.1 | SUSE-SU-2022:0978-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_10 | 5-150300.2.1 | SUSE-SU-2022:0984-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_11 | 1-7.3.1 | SUSE-SU-2022:0131-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_4 | 10-150300.2.1 | SUSE-SU-2022:0978-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_5 | 9-150300.2.1 | SUSE-SU-2022:0984-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_6 +1 | 7-150300.2.1 | SUSE-SU-2022:0984-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_9 | 6-150300.2.1 | SUSE-SU-2022:0984-1 |
| 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 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 |
| SUSE Real Time Module 15 SP3 | kernel-rt +3 | 5.3.18-68.1 | SUSE-SU-2022:0079-1 |
| SUSE Real Time Module 15 SP2 | kernel-rt +2 | 5.3.18-65.2 | SUSE-SU-2022:0181-1 |
| SUSE Real Time Module 15 SP2 | kernel-syms-rt | 5.3.18-65.1 | SUSE-SU-2022:0181-1 |
| SUSE Package Hub 15 SP3 | connman | 1.41-bp153.2.3.1 | openSUSE-SU-2022:0056-1 |
| 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 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 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | connman | 1.41-bp153.2.3.1 | openSUSE-SU-2022:0056-1 |
| openSUSE Leap 15.3 | dtb-aarch64 +11 | 5.3.18-59.40.1 | openSUSE-SU-2022:0131-1 |
| openSUSE Leap 15.3 | kernel-azure +2 | 5.3.18-38.34.1 | openSUSE-SU-2022:0056-1 |
| openSUSE Leap 15.3 | kernel-default-base | 5.3.18-59.40.1.18.25.1 | openSUSE-SU-2022:0131-1 |
Advisories 14
- USN-6417-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-xilinx-zynqmp vulnerabilities Ubuntu Security Notices (USN) · Oct 22, 2026
- USN-5278-1 linux-oem-5.14 vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5265-1 linux, linux-aws, linux-aws-5.11, linux-aws-5.13, linux-azure-5.11, linux-gcp, linux-gcp-5.11, linux-hwe-5.13, linux-kvm, linux-oem-5.13, linux-oracle, linux-oracle-5.11, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Sep 10, 2026
- USN-5207-1 linux-oem-5.10 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- SUSE-SU-2022:0056-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0984-1 Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0131-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0056-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0131-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0978-1 Security update for the Linux Kernel (Live Patch 4 for SLE 15 SP3) 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-2022:0181-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2022:0079-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2023-2557 Linux Kernel: Schwachstelle ermöglicht Privilegieneskalation BSI CERT-Bund (WID) · Oct 4, 2023