Description
Memory leak in the hwsim_new_radio_nl function in drivers/net/wireless/mac80211_hwsim.c in the Linux kernel through 4.15.9 allows local users to cause a denial of service (memory consumption) by triggering an out-of-array error case.
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 | 4.15.11-1 | — |
| Debian 13 | linux | 4.15.11-1 | — |
| Debian 12 | linux | 4.15.11-1 | — |
| Debian 9 | linux | 4.9.88-1 | DSA-4188-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +3 | No fix yet | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-23.25 | USN-3678-1 |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1010.10 | USN-3678-1 |
| Ubuntu 18.04 LTS | linux-azure | 4.15.0-1013.13 | USN-3678-3 |
| Ubuntu 18.04 LTS | linux-gcp | 4.15.0-1009.9 | USN-3678-1 |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1011.11 | USN-3678-1 |
| Ubuntu 18.04 LTS | linux-oem | 4.15.0-1008.11 | — |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1012.13 | USN-3678-4 |
| Ubuntu 16.04 LTS | linux | 4.4.0-128.154 | USN-3676-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1061.70 | USN-3676-1 |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1013.13~16.04.2 | USN-3678-2 |
| Ubuntu 16.04 LTS | linux-gcp | 4.13.0-1019.23 | USN-3677-2 |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-24.26~16.04.1 | USN-3677-2 |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1027.32 | USN-3676-1 |
| Ubuntu 16.04 LTS | linux-oem | 4.13.0-1030.33 | USN-3677-2 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1091.99 | USN-3676-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1094.99 | USN-3676-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux-aws | 4.4.0-1023.23 | USN-3676-2 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-128.154~14.04.1 | USN-3676-2 |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1008.10 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | kernel-rt +10 | 3.10.0-1062.rt56.1022.el7 | RHSA-2019:2043 |
| RHEL 7 | perf +18 | 3.10.0-1062.el7 | RHSA-2019:2029 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | kernel-docs +4 | 4.4.120-94.17.1 | SUSE-SU-2018:0786-1 |
| SLES 12 SP2 | kernel-docs +4 | 4.4.120-92.70.1 | SUSE-SU-2018:0785-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.120-94.17.1 | SUSE-SU-2018:0786-1 |
| SLES for SAP 12 SP2 | kernel-syms +2 | 4.4.120-92.70.1 | SUSE-SU-2018:0785-1 |
| SLE Real Time 12 SP3 | kernel-rt +3 | 4.4.120-3.8.1 | SUSE-SU-2018:0986-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_10 | 1-4.3.1 | SUSE-SU-2018:0786-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_20 | 1-3.3.1 | SUSE-SU-2018:0785-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | kernel-source | 5.14.6-1.4 | openSUSE-SU-2024:13704-1, openSUSE-SU-2024:10728-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | perf +12 | 3.10.0-1062.el7 | ELSA-2019-2029 |
Advisories 17
- RHSA-2019:2043 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2019:2029 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- USN-3678-1 linux, linux-aws, linux-gcp, linux-kvm vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3676-1 linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4188-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3678-3 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3678-4 linux-raspi2 vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3676-2 linux-lts-xenial, linux-aws vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3677-2 linux-hwe, linux-gcp, linux-oem vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3678-2 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- openSUSE-SU-2024:13704-1 kernel-devel-longterm-6.6.17-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0986-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10728-1 kernel-devel-5.14.6-1.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-0532 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 11, 2025
- SUSE-SU-2018:0785-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2018:0786-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2019-2029 Important: kernel security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 13, 2019
References
- USN-3676-1 vendor-advisory
- USN-3678-2 vendor-advisory
- https://github.com/torvalds/linux/commit/0ddcff49b672239dda94d70d0fcf50317a9f4b51
- USN-3678-1 vendor-advisory
- USN-3677-1 vendor-advisory
- 103397 vdb-entry
- DSA-4188 vendor-advisory
- USN-3678-3 vendor-advisory
- USN-3677-2 vendor-advisory
- USN-3676-2 vendor-advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ddcff49b672239dda94d70d0fcf50317a9f4b51
- USN-3678-4 vendor-advisory
- RHSA-2019:2043 vendor-advisory
- RHSA-2019:2029 vendor-advisory