Description
An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.
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 | 4.18.8-1 | — |
| Debian 13 | linux | 4.18.8-1 | — |
| Debian 12 | linux | 4.18.8-1 | — |
| Debian 9 | linux | 4.9.168-1+deb9u5 | DSA-4497-1 |
| Debian 8 | linux-4.9 | 4.9.168-1+deb9u5~deb8u1 | DLA-1885-1 |
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 | 4.15.0-58.64 | USN-4094-1 |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1047.49 | USN-4118-1 |
| Ubuntu 18.04 LTS | linux-azure | 4.18.0-1011.11~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +1 | 4.15.0-1040.42 | USN-4094-1 |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1042.42 | USN-4094-1 |
| Ubuntu 18.04 LTS | linux-oem | 4.15.0-1050.57 | USN-4094-1 |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1021.23 | USN-4094-1 |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1043.46 | USN-4094-1 |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1060.66 | USN-4094-1 |
| Ubuntu 16.04 LTS | linux | 4.4.0-161.189 | USN-4116-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1092.103 | USN-4116-1 |
| Ubuntu 16.04 LTS | linux-aws-hwe | 4.15.0-1047.49~16.04.1 | USN-4118-1 |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1055.60 | USN-4094-1 |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1040.42~16.04.1 | USN-4094-1 |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-58.64~16.04.1 | USN-4094-1 |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1056.63 | USN-4116-1 |
| Ubuntu 16.04 LTS | linux-oracle | 4.15.0-1021.23~16.04.1 | USN-4094-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1120.129 | USN-4116-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1124.130 | USN-4116-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS 18.04 LTS | linux-aws-fips +2 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | 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 FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1019.24 | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1054.58 | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1059.64~14.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-164.192~14.04.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | kernel +15 | 3.10.0-1062.4.1.el7 | RHSA-2019:3217, RHSA-2019:3055 |
| RHEL 7 | kernel-alt | 4.14.0-115.14.1.el7a | RHSA-2019:3217 |
| RHEL 7 | kernel-rt +10 | 3.10.0-1062.4.1.rt56.1027.el7 | RHSA-2019:3089 |
| RHEL 7 | kpatch-patch-3_10_0-1062 | 1-5.el7 | RHSA-2019:3076 |
| RHEL 7 | kpatch-patch-3_10_0-1062_1_1 | 1-4.el7 | RHSA-2019:3076 |
| RHEL 7 | kpatch-patch-3_10_0-1062_1_2 | 1-3.el7 | RHSA-2019:3076 |
| RHEL 7 | perf +2 | 3.10.0-957.46.1.el7 | RHSA-2020:0664, RHSA-2019:3217, RHSA-2019:3055 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7.6 EUS | kpatch-patch-3_10_0-957_35_1 | 1-6.el7 | RHSA-2020:0698 |
| RHEL 7.6 EUS | kpatch-patch-3_10_0-957_35_2 | 1-5.el7 | RHSA-2020:0698 |
| RHEL 7.6 EUS | kpatch-patch-3_10_0-957_38_1 | 1-4.el7 | RHSA-2020:0698 |
| RHEL 7.6 EUS | kpatch-patch-3_10_0-957_38_2 +1 | 1-3.el7 | RHSA-2020:0698 |
| RHEL 7.6 EUS | kpatch-patch-3_10_0-957_41_1 +1 | 1-1.el7 | RHSA-2020:0698 |
| RHEL 7.6 EUS | perf +18 | 3.10.0-957.46.1.el7 | RHSA-2020:0664 |
| RHEL 7.5 EUS | perf +17 | 3.10.0-862.48.1.el7 | RHSA-2020:0543 |
| RHEL 7.4 TUS | perf +11 | 3.10.0-693.62.1.el7 | RHSA-2020:0103 |
| RHEL 7.4 E4S | perf +13 | 3.10.0-693.62.1.el7 | RHSA-2020:0103 |
| RHEL 7.4 AUS | perf +11 | 3.10.0-693.62.1.el7 | RHSA-2020:0103 |
| Red Hat MRG 2 | kernel-rt +10 | 1:3.10.0-693.62.1.rt56.659.el6rt | RHSA-2020:0100 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | kernel-syms +2 | 4.4.180-94.103.1 | SUSE-SU-2019:2263-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_23 | 7-2.5 | SUSE-SU-2019:3258-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_24 +1 | 6-2.5 | SUSE-SU-2019:3258-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_26 | 6-2.1 | SUSE-SU-2019:3228-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_27 | 4-2.1 | SUSE-SU-2019:3228-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_28 | 1-4.3.1 | SUSE-SU-2019:2263-1 |
| SLES 12 SP2 | kernel-syms +2 | 4.4.121-92.120.1 | SUSE-SU-2019:2299-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_27 +2 | 7-2.5 | SUSE-SU-2019:3260-1, SUSE-SU-2019:3232-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_30 | 6-2.1 | SUSE-SU-2019:3261-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_31 | 5-2.1 | SUSE-SU-2019:3261-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_32 | 1-3.3.1 | SUSE-SU-2019:2299-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.180-94.103.1 | SUSE-SU-2019:2263-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_23 | 7-2.5 | SUSE-SU-2019:3258-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_24 +1 | 6-2.5 | SUSE-SU-2019:3258-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_26 | 6-2.1 | SUSE-SU-2019:3228-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_27 | 4-2.1 | SUSE-SU-2019:3228-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_28 | 1-4.3.1 | SUSE-SU-2019:2263-1 |
| SLES for SAP 12 SP2 | kernel-syms +2 | 4.4.121-92.120.1 | SUSE-SU-2019:2299-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_27 +2 | 7-2.5 | SUSE-SU-2019:3260-1, SUSE-SU-2019:3232-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_30 | 6-2.1 | SUSE-SU-2019:3261-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_31 | 5-2.1 | SUSE-SU-2019:3261-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_32 | 1-3.3.1 | SUSE-SU-2019:2299-1 |
| 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 |
| SUSE OpenStack Cloud Crowbar 8 | kernel-syms +2 | 4.4.180-94.103.1 | SUSE-SU-2019:2263-1 |
| SUSE OpenStack Cloud Crowbar 8 | kgraft-patch-SLE12-SP3_Update_28 | 1-4.3.1 | SUSE-SU-2019:2263-1 |
| SUSE OpenStack Cloud 8 | kernel-syms +2 | 4.4.180-94.103.1 | SUSE-SU-2019:2263-1 |
| SUSE OpenStack Cloud 8 | kgraft-patch-SLE12-SP3_Update_28 | 1-4.3.1 | SUSE-SU-2019:2263-1 |
| SUSE OpenStack Cloud 7 | kernel-syms +2 | 4.4.121-92.120.1 | SUSE-SU-2019:2299-1 |
| SUSE OpenStack Cloud 7 | kgraft-patch-SLE12-SP2_Update_32 | 1-3.3.1 | SUSE-SU-2019:2299-1 |
| SUSE HPE Helion OpenStack 8 | kernel-syms +2 | 4.4.180-94.103.1 | SUSE-SU-2019:2263-1 |
| SUSE HPE Helion OpenStack 8 | kgraft-patch-SLE12-SP3_Update_28 | 1-4.3.1 | SUSE-SU-2019:2263-1 |
| SUSE Enterprise Storage 5 | kernel-syms +2 | 4.4.180-94.103.1 | SUSE-SU-2019:2263-1 |
| SUSE Enterprise Storage 5 | kgraft-patch-SLE12-SP3_Update_28 | 1-4.3.1 | SUSE-SU-2019:2263-1 |
| SUSE Enterprise Storage 4 | kernel-syms +2 | 4.4.121-92.120.1 | SUSE-SU-2019:2299-1 |
| SUSE Enterprise Storage 4 | kgraft-patch-SLE12-SP2_Update_32 | 1-3.3.1 | SUSE-SU-2019:2299-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-124.43.4.el7uek | ELSA-2020-5866 |
| Oracle Linux 7 | perf +12 | 3.10.0-1062.4.1.el7 | ELSA-2019-3055 |
Advisories 24
- USN-4094-1 linux, linux-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Sep 7, 2026
- USN-4118-1 linux-aws vulnerabilities Ubuntu Security Notices (USN) · Sep 7, 2026
- USN-4116-1 linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Sep 7, 2026
- RHSA-2020:0103 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2020:0664 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2020:0698 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2020:0543 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2020:0100 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2019:3217 Red Hat Security Advisory: kernel-alt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2019:3089 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2019:3076 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2019:3055 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- DSA-4497-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1885-1 linux-4.9 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:2263-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3232-1 Security update for the Linux Kernel (Live Patch 27 for SLE 12 SP2) 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-2019:3260-1 Security update for the Linux Kernel (Live Patch 29 for SLE 12 SP2) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3228-1 Security update for the Linux Kernel (Live Patch 27 for SLE 12 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2299-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3261-1 Security update for the Linux Kernel (Live Patch 31 for SLE 12 SP2) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3258-1 Security update for the Linux Kernel (Live Patch 25 for SLE 12 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2020-5866 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 6, 2020
- ELSA-2019-3055 Important: kernel security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 16, 2019
References
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7
- https://github.com/torvalds/linux/commit/54648cf1ec2d7f4b6a71767799c45676a138ca24
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54648cf1ec2d7f4b6a71767799c45676a138ca24
- USN-4094-1 vendor-advisory
- 20190813 [SECURITY] [DSA 4497-1] linux security update mailing-list
- DSA-4497 vendor-advisory
- 20190814 [slackware-security] Slackware 14.2 kernel (SSA:2019-226-01) mailing-list
- [debian-lts-announce] 20190814 [SECURITY] [DLA 1885-1] linux-4.9 security update mailing-list
- http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- USN-4116-1 vendor-advisory
- USN-4118-1 vendor-advisory
- https://security.netapp.com/advisory/ntap-20190905-0002/
- http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html
- https://support.f5.com/csp/article/K14673240?utm_source=f5support&%3Butm_medium=RSS
- RHSA-2019:3076 vendor-advisory
- RHSA-2019:3055 vendor-advisory
- RHSA-2019:3089 vendor-advisory
- http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
- RHSA-2019:3217 vendor-advisory
- RHSA-2020:0100 vendor-advisory
- RHSA-2020:0103 vendor-advisory
- RHSA-2020:0543 vendor-advisory
- RHSA-2020:0664 vendor-advisory
- RHSA-2020:0698 vendor-advisory