Description
An issue was discovered in the Linux kernel before 5.0.5. There is a use-after-free issue when hci_uart_register_dev() fails in hci_uart_set_proto() in drivers/bluetooth/hci_ldisc.c.
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 | 4.19.37-1 | — |
| Debian 13 | linux | 4.19.37-1 | — |
| Debian 12 | linux | 4.19.37-1 | — |
| Debian 8 | linux | 3.16.74-1 | DLA-1930-1 |
| Debian 8 | linux-4.9 | 4.9.210-1~deb8u1 | DLA-2114-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | linux-vmware | No fix yet | — |
| 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 +2 | No fix yet | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-60.67 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1047.49 | — |
| Ubuntu 18.04 LTS | linux-azure | 5.0.0-1014.14~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp | 4.15.0-1042.45 | — |
| Ubuntu 18.04 LTS | linux-gke-4.15 | 4.15.0-1041.43 | — |
| Ubuntu 18.04 LTS | linux-hwe | 5.0.0-23.24~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1043.43 | — |
| Ubuntu 18.04 LTS | linux-oem | 4.15.0-1056.65 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1022.25 | — |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1044.47 | — |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1062.69 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-aws-hwe | 4.15.0-1047.49~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1056.61 | — |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1041.43 | — |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-60.67~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-oracle | 4.15.0-1022.25~16.04.1 | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-aws-fips +2 | No fix yet | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2018.18 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2006.7 | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1059.64~14.04.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | kernel-rt +12 | 4.18.0-240.rt7.54.el8 | RHSA-2020:4609 |
| RHEL 8 | perf +26 | 4.18.0-240.el8 | RHSA-2020:4431 |
| RHEL 7 | kernel-alt | 4.14.0-115.26.1.el7a | RHSA-2020:2854 |
| RHEL 7 | kernel-rt +10 | 3.10.0-1160.rt56.1131.el7 | RHSA-2020:4062 |
| RHEL 7 | perf +18 | 3.10.0-1160.el7 | RHSA-2020:4060, RHSA-2020:2854 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7.7 EUS | perf +18 | 3.10.0-1062.43.1.el7 | RHSA-2021:0019 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | kernel-tools-libs-devel | 4.18.0-240.el8 | ALSA-2020:4431 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | kernel-azure +2 | 4.12.14-8.16.1 | SUSE-SU-2019:2658-1 |
| SLES 15 SP1 | kernel-docs +5 | 4.12.14-197.18.1 | SUSE-SU-2019:2424-1 |
| SLES 15 | kernel-azure +2 | 4.12.14-5.41.1 | SUSE-SU-2019:2651-1 |
| SLES 15 | kernel-docs +6 | 4.12.14-150.35.1 | SUSE-SU-2019:2414-1 |
| SLES 12 SP4 | kernel-azure +2 | 4.12.14-6.26.1 | SUSE-SU-2019:2648-1 |
| SLES 12 SP4 | kernel-docs +4 | 4.12.14-95.32.1 | SUSE-SU-2019:2412-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_33 | 7-2.3 | SUSE-SU-2019:3233-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_34 | 6-2.3 | SUSE-SU-2019:3233-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_35 +1 | 4-2.3 | SUSE-SU-2019:3233-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_37 | 2-2.3 | SUSE-SU-2019:3237-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP4 | kernel-azure +2 | 4.12.14-6.26.1 | SUSE-SU-2019:2648-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.32.1 | SUSE-SU-2019:2412-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_33 | 7-2.3 | SUSE-SU-2019:3233-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_34 | 6-2.3 | SUSE-SU-2019:3233-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_35 +1 | 4-2.3 | SUSE-SU-2019:3233-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_37 | 2-2.3 | SUSE-SU-2019:3237-1 |
| SLE Real Time 12 SP4 | kernel-rt +3 | 4.12.14-8.6.1 | SUSE-SU-2019:2756-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-197.18.1 | SUSE-SU-2019:2424-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_5 | 1-3.3.1 | SUSE-SU-2019:2424-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-150.35.1 | SUSE-SU-2019:2414-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_14 | 1-1.3.1 | SUSE-SU-2019:2414-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_8 | 7-2.3 | SUSE-SU-2019:3246-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_9 | 6-2.3 | SUSE-SU-2019:3247-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_0 | 9-2.25.1 | SUSE-SU-2019:3252-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_1 | 8-2.5 | SUSE-SU-2019:3252-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_2 | 7-2.5 | SUSE-SU-2019:3223-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_3 | 6-2.5 | SUSE-SU-2019:3224-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_8 | 1-6.3.1 | SUSE-SU-2019:2412-1 |
| SUSE Real Time Module 15 SP1 | kernel-rt +3 | 4.12.14-14.11.1 | SUSE-SU-2019:2738-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | kernel-docs +8 | 4.12.14-lp151.28.16.1 | openSUSE-SU-2019:2181-1 |
| openSUSE Leap 15.0 | kernel-docs +8 | 4.12.14-lp150.12.73.1 | openSUSE-SU-2019:2173-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | perf +19 | 4.18.0-240.el8 | ELSA-2020-4431 |
| Oracle Linux 7 | kernel-uek +8 | 4.14.35-1902.10.4.el7uek | ELSA-2020-5533, ELSA-2020-5528, ELSA-2020-5526 |
| Oracle Linux 7 | perf +12 | 3.10.0-1160.el7 | ELSA-2020-5533, ELSA-2020-5528, ELSA-2020-5526 |
Advisories 31
- ALSA-2020:4431 Moderate: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2020:4431 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2020:4062 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2020:4060 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 9, 2026
- RHSA-2020:4609 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2021:0019 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:2854 Red Hat Security Advisory: kernel-alt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DLA-1930-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2114-1 linux-4.9 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2019:2173-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2756-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3237-1 Security update for the Linux Kernel (Live Patch 37 for SLE 12 SP1) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3252-1 Security update for the Linux Kernel (Live Patch 1 for SLE 12 SP4) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3224-1 Security update for the Linux Kernel (Live Patch 3 for SLE 12 SP4) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2648-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3247-1 Security update for the Linux Kernel (Live Patch 9 for SLE 15) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2414-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2412-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3246-1 Security update for the Linux Kernel (Live Patch 8 for SLE 15) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3233-1 Security update for the Linux Kernel (Live Patch 36 for SLE 12 SP1) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2658-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3223-1 Security update for the Linux Kernel (Live Patch 2 for SLE 12 SP4) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2651-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2181-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 7, 2025
- SUSE-SU-2019:2424-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2019:2738-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2020-4431 Moderate: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 10, 2020
- ELSA-2020-4060 Important: kernel security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 6, 2020
- ELSA-2020-5533 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Feb 10, 2020
- ELSA-2020-5528 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 30, 2020
- ELSA-2020-5526 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 30, 2020
References
- https://github.com/torvalds/linux/commit/56897b217a1d0a91c9920cb418d6b3fe922f590a
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.5
- openSUSE-SU-2019:2173 vendor-advisory
- openSUSE-SU-2019:2181 vendor-advisory
- [debian-lts-announce] 20190925 [SECURITY] [DLA 1930-1] linux security update mailing-list
- https://security.netapp.com/advisory/ntap-20191004-0001/
- 20200109 [slackware-security] Slackware 14.2 kernel (SSA:2020-008-01) mailing-list
- http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- [debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security update mailing-list