Description
In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.
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 | 5.10.38-1 | — |
| Debian 13 | linux | 5.10.38-1 | — |
| Debian 12 | linux | 5.10.38-1 | — |
| Debian 9 | linux | 4.9.272-1 | DLA-2689-1 |
| Debian 9 | linux-4.19 | 4.19.194-1~deb9u1 | DLA-2690-1 |
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 | 5.4.0-77.86 | USN-5000-1 |
| Ubuntu 20.04 LTS | linux-aws +1 | 5.4.0-1051.53 | USN-5000-1 |
| Ubuntu 20.04 LTS | linux-aws-5.8 | 5.8.0-1041.43~20.04.1 | USN-5016-1 |
| Ubuntu 20.04 LTS | linux-azure-5.8 | 5.8.0-1039.42~20.04.1 | USN-5016-1 |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1013.16 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1046.49 | USN-5000-1 |
| Ubuntu 20.04 LTS | linux-gcp-5.8 | 5.8.0-1038.40~20.04.1 | USN-5016-1 |
| Ubuntu 20.04 LTS | linux-gke | 5.4.0-1046.48 | USN-5000-1 |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1018.19 | USN-5000-1 |
| Ubuntu 20.04 LTS | linux-hwe-5.8 | 5.8.0-63.71~20.04.1 | USN-5016-1 |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1041.42 | USN-5000-2 |
| Ubuntu 20.04 LTS | linux-oem-5.10 | 5.10.0-1032.33 | USN-5001-1 |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1048.52 | USN-5000-1 |
| Ubuntu 20.04 LTS | linux-oracle-5.8 | 5.8.0-1037.38~20.04.1 | USN-5016-1 |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1038.41 | USN-5000-1 |
| Ubuntu 20.04 LTS | linux-riscv +3 | No fix yet | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-151.157 | USN-5018-1 |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1109.116 | USN-5018-1 |
| Ubuntu 18.04 LTS | linux-aws-5.4 +1 | 5.4.0-1051.53~18.04.1 | USN-5000-1 |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1121.134 | USN-5018-1 |
| Ubuntu 18.04 LTS | linux-dell300x | 4.15.0-1027.32 | — |
| Ubuntu 18.04 LTS | linux-gcp +13 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1106.120 | USN-5018-1 |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1046.49~18.04.1 | USN-5000-1 |
| Ubuntu 18.04 LTS | linux-gke-5.4 | 5.4.0-1046.48~18.04.1 | USN-5000-1 |
| Ubuntu 18.04 LTS | linux-gkeop-5.4 | 5.4.0-1018.19~18.04.1 | USN-5000-1 |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-77.86~18.04.1 | USN-5000-1 |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1097.99 | USN-5018-1 |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1078.86 | USN-5018-1 |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1048.52~18.04.1 | USN-5000-1 |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1038.41~18.04.1 | USN-5000-1 |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1092.98 | USN-5018-1 |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1109.118 | USN-5018-1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 9 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 | 5.4.0-1028.32 | — |
| 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 | 4.15.0-2051.53 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2033.37 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1066.75 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2016.18 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1069.75 | — |
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1114.123~20.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux | 4.4.0-219.252 | USN-5343-1, USN-5299-1 |
| Ubuntu Pro 16.04 LTS | linux-aws | 4.4.0-1135.149 | USN-5343-1, USN-5299-1 |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1109.116~16.04.1 | USN-5018-1 |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1121.134~16.04.1 | USN-5018-1 |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1106.120~16.04.1 | USN-5018-1 |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-151.157~16.04.1 | USN-5018-1 |
| Ubuntu Pro 16.04 LTS | linux-kvm | 4.4.0-1100.109 | USN-5343-1, USN-5299-1 |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1078.86~16.04.1 | USN-5018-1 |
| Ubuntu Pro 14.04 LTS | linux | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1099.104 | USN-5343-1, USN-5299-1 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1121.134~14.04.1 | USN-5018-1 |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-219.252~14.04.1 | USN-5343-1, USN-5299-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | kernel-rt +12 | 4.18.0-305.7.1.rt7.79.el8_4 | RHSA-2021:2599 |
| RHEL 8 | kpatch-patch-4_18_0-305 | 1-2.el8 | RHSA-2021:2563 |
| RHEL 8 | kpatch-patch-4_18_0-305_3_1 | 1-1.el8_4 | RHSA-2021:2563 |
| RHEL 8 | perf +26 | 4.18.0-305.7.1.el8_4 | RHSA-2021:2570 |
| RHEL 7 | kernel-rt +10 | 3.10.0-1160.36.2.rt56.1179.el7 | RHSA-2021:2726 |
| RHEL 7 | kpatch-patch-3_10_0-1160 +3 | 1-7.el7 | RHSA-2021:2727 |
| RHEL 7 | kpatch-patch-3_10_0-1160_11_1 +1 | 1-6.el7 | RHSA-2021:2727 |
| RHEL 7 | kpatch-patch-3_10_0-1160_21_1 | 1-4.el7 | RHSA-2021:2727 |
| RHEL 7 | kpatch-patch-3_10_0-1160_24_1 +1 | 1-2.el7 | RHSA-2021:2727 |
| RHEL 7 | kpatch-patch-3_10_0-1160_31_1 | 1-1.el7 | RHSA-2021:2727 |
| RHEL 7 | perf +18 | 3.10.0-1160.36.2.el7 | RHSA-2021:2725 |
| RHEL 7 | redhat-virtualization-host +1 | 4.3.17-20210713.0.el7_9 | RHSA-2021:2737 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhev Hypervisor 4 | redhat-virtualization-host +1 | 4.4.7-20210715.1.el8_4 | RHSA-2021:2736 |
| RHEL 8.2 EUS | kernel-rt +12 | 4.18.0-193.60.2.rt13.112.el8_2 | RHSA-2021:2719 |
| RHEL 8.2 EUS | kpatch-patch-4_18_0-193_13_2 +2 | 1-10.el8_2 | RHSA-2021:2720 |
| RHEL 8.2 EUS | kpatch-patch-4_18_0-193_28_1 +4 | 1-8.el8_2 | RHSA-2021:2720 |
| RHEL 8.2 EUS | kpatch-patch-4_18_0-193_46_1 +1 | 1-5.el8_2 | RHSA-2021:2720 |
| RHEL 8.2 EUS | kpatch-patch-4_18_0-193_51_1 | 1-2.el8_2 | RHSA-2021:2720 |
| RHEL 8.2 EUS | kpatch-patch-4_18_0-193_56_1 | 1-1.el8_2 | RHSA-2021:2720 |
| RHEL 8.2 EUS | perf +26 | 4.18.0-193.60.2.el8_2 | RHSA-2021:2718 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_24_2 +1 | 1-10.el8_1 | RHSA-2021:2668 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_32_1 +1 | 1-8.el8_1 | RHSA-2021:2668 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_38_1 | 1-7.el8_1 | RHSA-2021:2668 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_43_1 | 1-5.el8_1 | RHSA-2021:2668 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_44_1 | 1-4.el8_1 | RHSA-2021:2668 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_48_1 | 1-1.el8_1 | RHSA-2021:2668 |
| RHEL 8.1 EUS | perf +26 | 4.18.0-147.51.1.el8_1 | RHSA-2021:2666 |
| RHEL 7.7 EUS | kpatch-patch-3_10_0-1062_30_1 +8 | 1-4.el7 | RHSA-2021:2729 |
| RHEL 7.7 EUS | kpatch-patch-3_10_0-1062_46_1 | 1-3.el7 | RHSA-2021:2729 |
| RHEL 7.7 EUS | kpatch-patch-3_10_0-1062_49_1 +1 | 1-1.el7 | RHSA-2021:2729 |
| RHEL 7.7 EUS | perf +18 | 3.10.0-1062.52.2.el7 | RHSA-2021:2728 |
| RHEL 7.6 TUS | perf +12 | 3.10.0-957.78.2.el7 | RHSA-2021:2730 |
| RHEL 7.6 E4S | kpatch-patch-3_10_0-957_58_2 +5 | 1-4.el7 | RHSA-2021:2731 |
| RHEL 7.6 E4S | kpatch-patch-3_10_0-957_70_1 | 1-3.el7 | RHSA-2021:2731 |
| RHEL 7.6 E4S | kpatch-patch-3_10_0-957_72_1 +1 | 1-1.el7 | RHSA-2021:2731 |
| RHEL 7.6 E4S | perf +13 | 3.10.0-957.78.2.el7 | RHSA-2021:2730 |
| RHEL 7.6 AUS | perf +12 | 3.10.0-957.78.2.el7 | RHSA-2021:2730 |
| RHEL 7.4 TUS | perf +11 | 3.10.0-693.90.2.el7 | RHSA-2021:2732 |
| RHEL 7.4 E4S | perf +13 | 3.10.0-693.90.2.el7 | RHSA-2021:2732 |
| RHEL 7.4 AUS | perf +11 | 3.10.0-693.90.2.el7 | RHSA-2021:2732 |
| RHEL 7.3 AUS | perf +11 | 3.10.0-514.90.2.el7 | RHSA-2021:2733 |
| RHEL 7.2 AUS | perf +11 | 3.10.0-327.98.2.el7 | RHSA-2021:2734 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | kernel-tools-libs-devel | 4.18.0-305.7.1.el8_4 | ALSA-2021:2570 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | kernel | 4.18.0-305.7.1.el8_4 | RLSA-2021:2570 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | kernel-64kb +5 | 5.3.18-59.5.2 | SUSE-SU-2021:1977-1 |
| SLES 15 SP3 | kernel-azure +2 | 5.3.18-38.3.1 | SUSE-SU-2021:1975-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-59.5.2.18.2.2 | SUSE-SU-2021:1977-1 |
| SLES 15 SP3 | kernel-syms +1 | 5.3.18-59.5.1 | SUSE-SU-2021:1977-1 |
| SLES 15 SP2 | kernel-azure +1 | 5.3.18-18.50.2 | SUSE-SU-2021:1888-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-24.67.3.9.30.2 | SUSE-SU-2021:1890-1 |
| SLES 15 SP2 | kernel-docs +1 | 5.3.18-24.67.3 | SUSE-SU-2021:1890-1 |
| SLES 15 SP2 | kernel-preempt | 5.3.18-24.67.4 | SUSE-SU-2021:1890-1 |
| SLES 15 SP2 | kernel-source +1 | 5.3.18-24.67.2 | SUSE-SU-2021:1890-1 |
| SLES 15 SP2 | kernel-syms | 5.3.18-24.67.1 | SUSE-SU-2021:1890-1 |
| SLES 15 SP2 | kernel-syms-azure | 5.3.18-18.50.1 | SUSE-SU-2021:1888-1 |
| SLES 15 SP1 | kernel-docs +5 | 4.12.14-197.92.1 | SUSE-SU-2021:1912-1 |
| SLES 15 | kernel-docs +6 | 4.12.14-150.75.1 | SUSE-SU-2021:2421-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.59.1 | SUSE-SU-2021:1887-1 |
| SLES 12 SP5 | kernel-docs | 4.12.14-122.74.2 | SUSE-SU-2021:1913-1 |
| SLES 12 SP5 | kernel-syms +3 | 4.12.14-122.74.1 | SUSE-SU-2021:1913-1 |
Show 29 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | kernel-syms +2 | 4.12.14-95.77.1 | SUSE-SU-2021:1891-1 |
| SLES 12 SP3 | kernel-syms +2 | 4.4.180-94.147.1 | SUSE-SU-2021:2451-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_33 | 11-2.3 | SUSE-SU-2021:2060-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_34 | 11-2.2 | SUSE-SU-2021:2060-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_35 | 10-2.2 | SUSE-SU-2021:2060-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_36 | 8-2.2 | SUSE-SU-2021:2060-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_37 | 6-2.2 | SUSE-SU-2021:2042-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_38 | 5-2.2 | SUSE-SU-2021:2042-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_39 | 2-2.1 | SUSE-SU-2021:2026-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_40 | 1-4.3.1 | SUSE-SU-2021:2451-1 |
| SLES 12 SP2 | kernel-syms +2 | 4.4.121-92.158.1 | SUSE-SU-2021:2406-1 |
| SLES for SAP 15 SP1 | kernel-docs +4 | 4.12.14-197.92.1 | SUSE-SU-2021:1912-1 |
| SLES for SAP 15 | kernel-docs +5 | 4.12.14-150.75.1 | SUSE-SU-2021:2421-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.59.1 | SUSE-SU-2021:1887-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.74.1 | SUSE-SU-2021:1913-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.77.1 | SUSE-SU-2021:1891-1 |
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.180-94.147.1 | SUSE-SU-2021:2451-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_33 | 11-2.3 | SUSE-SU-2021:2060-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_34 | 11-2.2 | SUSE-SU-2021:2060-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_35 | 10-2.2 | SUSE-SU-2021:2060-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_36 | 8-2.2 | SUSE-SU-2021:2060-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_37 | 6-2.2 | SUSE-SU-2021:2042-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_38 | 5-2.2 | SUSE-SU-2021:2042-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_39 | 2-2.1 | SUSE-SU-2021:2026-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_40 | 1-4.3.1 | SUSE-SU-2021:2451-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.46.1 | SUSE-SU-2021:1899-1 |
| SLE Micro 5.0 | kernel-default | 5.3.18-24.67.3 | SUSE-SU-2021:1890-1 |
| SLE Micro 5.0 | kernel-default-base | 5.3.18-24.67.3.9.30.2 | SUSE-SU-2021:1890-1 |
| SLE Micro 5.0 | kernel-rt | 5.3.18-8.13.1 | SUSE-SU-2021:2208-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-59.5.2 | SUSE-SU-2021:1977-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_0 | 2-3.1 | SUSE-SU-2021:2198-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_1 | 1-7.5.1 | SUSE-SU-2021:1977-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-24.67.3 | SUSE-SU-2021:1890-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_0 | 12-5.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_1 | 11-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_10 | 6-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_11 | 5-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_12 +2 | 2-2.1 | SUSE-SU-2021:2577-1, SUSE-SU-2021:2067-1, SUSE-SU-2021:2027-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_14 | 1-5.3.2 | SUSE-SU-2021:1890-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_2 +2 | 10-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_5 +2 | 8-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_8 +1 | 7-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-197.92.1 | SUSE-SU-2021:1912-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_13 +1 | 11-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_15 | 10-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_16 | 9-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_17 +1 | 8-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_19 +2 | 7-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_22 | 6-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_23 | 5-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_24 | 2-2.1 | SUSE-SU-2021:2020-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_25 | 1-3.3.1 | SUSE-SU-2021:1912-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-150.75.1 | SUSE-SU-2021:2421-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_18 +1 | 11-2.2 | SUSE-SU-2021:2060-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_20 | 10-2.2 | SUSE-SU-2021:2060-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_21 | 8-2.2 | SUSE-SU-2021:2060-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_22 | 6-2.2 | SUSE-SU-2021:2060-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_23 | 5-2.2 | SUSE-SU-2021:2060-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_24 | 2-2.1 | SUSE-SU-2021:2057-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_25 | 1-1.3.1 | SUSE-SU-2021:2421-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.74.1 | SUSE-SU-2021:1913-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_10 | 11-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_11 +1 | 9-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_13 +1 | 7-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_15 | 6-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_16 | 5-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_17 | 3-2.1 | SUSE-SU-2021:2067-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_18 | 2-2.1 | SUSE-SU-2021:2020-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_19 | 1-8.3.1 | SUSE-SU-2021:1913-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_6 +2 | 13-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_9 | 12-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 12 SP4 | kernel-default | 4.12.14-95.77.1 | SUSE-SU-2021:1891-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_15 | 11-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_16 | 10-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_17 | 7-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_18 | 6-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_19 | 5-2.2 | SUSE-SU-2021:2025-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_20 | 2-2.1 | SUSE-SU-2021:2020-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_21 | 1-6.3.1 | SUSE-SU-2021:1891-1 |
| SLE HPC 15 SP1 | kernel-docs +4 | 4.12.14-197.92.1 | SUSE-SU-2021:1912-1 |
| SLE HPC 15 | kernel-docs +5 | 4.12.14-150.75.1 | SUSE-SU-2021:2421-1 |
| SUSE Real Time Module 15 SP3 | kernel-rt +3 | 5.3.18-8.13.1 | SUSE-SU-2021:2208-1 |
| SUSE Real Time Module 15 SP2 | kernel-rt +3 | 5.3.18-39.1 | SUSE-SU-2021:1889-1 |
| SUSE OpenStack Cloud Crowbar 9 | kernel-syms +2 | 4.12.14-95.77.1 | SUSE-SU-2021:1891-1 |
| SUSE OpenStack Cloud Crowbar 8 | kernel-syms +2 | 4.4.180-94.147.1 | SUSE-SU-2021:2451-1 |
| SUSE OpenStack Cloud Crowbar 8 | kgraft-patch-SLE12-SP3_Update_40 | 1-4.3.1 | SUSE-SU-2021:2451-1 |
| SUSE OpenStack Cloud 9 | kernel-syms +2 | 4.12.14-95.77.1 | SUSE-SU-2021:1891-1 |
| SUSE OpenStack Cloud 8 | kernel-syms +2 | 4.4.180-94.147.1 | SUSE-SU-2021:2451-1 |
| SUSE OpenStack Cloud 8 | kgraft-patch-SLE12-SP3_Update_40 | 1-4.3.1 | SUSE-SU-2021:2451-1 |
| SUSE Manager Server 4.0 | kernel-docs +5 | 4.12.14-197.92.1 | SUSE-SU-2021:1912-1 |
| SUSE Manager Retail Branch Server 4.0 | kernel-docs +4 | 4.12.14-197.92.1 | SUSE-SU-2021:1912-1 |
| SUSE Manager Proxy 4.0 | kernel-docs +4 | 4.12.14-197.92.1 | SUSE-SU-2021:1912-1 |
| SUSE HPE Helion OpenStack 8 | kernel-syms +2 | 4.4.180-94.147.1 | SUSE-SU-2021:2451-1 |
| SUSE HPE Helion OpenStack 8 | kgraft-patch-SLE12-SP3_Update_40 | 1-4.3.1 | SUSE-SU-2021:2451-1 |
| SUSE Enterprise Storage 6 | kernel-docs +4 | 4.12.14-197.92.1 | SUSE-SU-2021:1912-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | kernel-64kb +7 | 5.3.18-59.5.2 | openSUSE-SU-2021:1977-1 |
| openSUSE Leap 15.3 | kernel-azure +2 | 5.3.18-38.3.1 | openSUSE-SU-2021:1975-1 |
| openSUSE Leap 15.3 | kernel-default-base | 5.3.18-59.5.2.18.2.2 | openSUSE-SU-2021:1977-1 |
| openSUSE Leap 15.3 | kernel-syms +2 | 5.3.18-59.5.1 | openSUSE-SU-2021:1977-1 |
| openSUSE Leap 15.2 | kernel-default-base | 5.3.18-lp152.78.1.lp152.8.34.1 | openSUSE-SU-2021:0843-1 |
| openSUSE Leap 15.2 | kernel-docs +8 | 5.3.18-lp152.78.1 | openSUSE-SU-2021:0843-1 |
| openSUSE Leap 15.2 | kernel-rt +3 | 5.3.18-lp152.3.14.1 | openSUSE-SU-2021:0947-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | kernel-livepatch-4.14.238-182.421 | 1.0-0.amzn2 | ALAS2-2021-1685 |
| Amazon Linux 2 | perf +8 | 4.14.238-182.421.amzn2 | ALAS2-2021-1685 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.10.78.1-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | perf +19 | 4.18.0-305.7.1.el8_4 | ELSA-2021-2570 |
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-124.52.4.el7uek | ELSA-2021-9362, ELSA-2021-9349, ELSA-2021-9346 |
| Oracle Linux 7 | kernel-uek-container | 4.14.35-2047.505.4.el7 | ELSA-2021-9363, ELSA-2021-9351 |
| Oracle Linux 7 | kernel-uek-container-debug | 5.4.17-2102.203.5.el8 | ELSA-2021-9363 |
| Oracle Linux 7 | kernel-uek-tools +3 | 4.14.35-2047.505.4.el7uek | ELSA-2021-9362, ELSA-2021-9349 |
| Oracle Linux 7 | perf +12 | 3.10.0-1160.36.2.el7 | ELSA-2021-9362, ELSA-2021-9349, ELSA-2021-2725 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
Trinadh465/device_renesas_kernel_AOSP10_r33_CVE-2021-33034 ★ 0 · Apr 28, 2022
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 50
- ALSA-2021:2570 Important: kernel security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2021:2733 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2021:2731 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2021:2732 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2021:2730 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2021:2737 Red Hat Security Advisory: RHV-H security update (redhat-virtualization-host) 4.3.17 Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2734 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2736 Red Hat Security Advisory: Red Hat Virtualization Host security and bug fix update [ovirt-4.4.7] Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2728 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2729 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2726 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2727 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2725 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2720 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2718 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2719 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2666 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2668 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2599 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2563 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- RHSA-2021:2570 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Aug 14, 2026
- USN-5299-1 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-5343-1 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-5018-1 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) · Jun 29, 2026
- USN-5016-1 linux, linux-aws, linux-aws-5.8, linux-azure, linux-azure-5.8, linux-gcp, linux-gcp-5.8, linux-hwe-5.8, linux-kvm, linux-oracle, linux-oracle-5.8, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-5000-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-5001-1 linux-oem-5.10 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-5000-2 linux-kvm vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- DLA-2689-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2690-1 linux-4.19 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:2570 Important: kernel security and bug fix update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2021:2451-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2042-1 Security update for the Linux Kernel (Live Patch 37 for SLE 12 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1888-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2198-1 Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1913-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2060-1 Security update for the Linux Kernel (Live Patch 33 for SLE 12 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2067-1 Security update for the Linux Kernel (Live Patch 12 for SLE 15 SP2) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2025-1 Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP2) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1912-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:1975-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2421-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2026-1 Security update for the Linux Kernel (Live Patch 39 for SLE 12 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1889-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1890-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0843-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2057-1 Security update for the Linux Kernel (Live Patch 24 for SLE 15) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1891-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1887-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:2020-1 Security update for the Linux Kernel (Live Patch 24 for SLE 15 SP1) SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://syzkaller.appspot.com/bug?id=2e1943a94647f7732dd6fc60368642d6e8dc91b1
- https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-hci_send_acl
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5c4c8c9544099bb9043a10a5318130a943e32fc3
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
- FEDORA-2021-bae582b42c vendor-advisory
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update mailing-list
- [debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update mailing-list