Description
usb_sg_cancel in drivers/usb/core/message.c in the Linux kernel before 5.6.8 has a use-after-free because a transfer occurs without a reference, aka CID-056ad39ee925.
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 | 5.6.14-1 | — |
| Debian 13 | linux | 5.6.14-1 | — |
| Debian 12 | linux | 5.6.14-1 | — |
| Debian 10 | linux | 4.19.118-2+deb10u1 | DSA-4699-1 |
| Debian 9 | linux | 4.9.210-1+deb9u1 | DSA-4698-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | linux | 3.16.84-1 | DLA-2241-1 |
| Debian 8 | linux-4.9 | 4.9.210-1+deb9u1~deb8u1 | DLA-2242-1 |
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 | 5.4.0-37.41 | USN-4389-1 |
| Ubuntu 20.04 LTS | linux-aws +3 | 5.4.0-1015.15 | USN-4389-1 |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1016.16 | USN-4389-1 |
| Ubuntu 20.04 LTS | linux-gke +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-oem-5.6 | 5.6.0-1010.10 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1012.12 | USN-4389-1 |
| Ubuntu 20.04 LTS | linux-riscv | 5.4.0-27.31 | USN-4389-1 |
| Ubuntu 18.04 LTS | linux | 4.15.0-106.107 | USN-4390-1 |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1073.77 | USN-4390-1 |
| Ubuntu 18.04 LTS | linux-aws-5.3 | 5.3.0-1023.25~18.04.1 | USN-4387-1 |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1089.99 | USN-4390-1 |
| Ubuntu 18.04 LTS | linux-azure-5.3 | 5.3.0-1028.29~18.04.1 | USN-4387-1 |
| Ubuntu 18.04 LTS | linux-gcp +6 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1077.87 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.3 +1 | 5.3.0-1026.28~18.04.1 | USN-4387-1 |
| Ubuntu 18.04 LTS | linux-gke-4.15 | 4.15.0-1063.66 | USN-4390-1 |
| Ubuntu 18.04 LTS | linux-gke-5.0 | 5.0.0-1042.43 | USN-4388-1 |
| Ubuntu 18.04 LTS | linux-hwe | 5.3.0-59.53~18.04.1 | USN-4387-1 |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1067.68 | USN-4390-1 |
| Ubuntu 18.04 LTS | linux-oem | 4.15.0-1087.97 | USN-4390-1 |
| Ubuntu 18.04 LTS | linux-oem-osp1 | 5.0.0-1059.64 | USN-4388-1 |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1045.49 | USN-4390-1 |
| Ubuntu 18.04 LTS | linux-oracle-5.3 | 5.3.0-1024.26~18.04.1 | USN-4387-1 |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1063.67 | USN-4390-1 |
| Ubuntu 18.04 LTS | linux-raspi2-5.3 | 5.3.0-1027.29~18.04.1 | USN-4387-1 |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1080.87 | USN-4390-1 |
| Ubuntu 16.04 LTS | linux | 4.4.0-184.214 | USN-4391-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1109.120 | USN-4391-1 |
| Ubuntu 16.04 LTS | linux-aws-hwe | 4.15.0-1073.77~16.04.1 | USN-4390-1 |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1089.99~16.04.1 | USN-4390-1 |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1077.87~16.04.1 | USN-4390-1 |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-106.107~16.04.1 | USN-4390-1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1075.82 | USN-4391-1 |
| Ubuntu 16.04 LTS | linux-oracle | 4.15.0-1045.49~16.04.1 | USN-4390-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1134.143 | USN-4391-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1138.146 | USN-4391-1 |
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 18.04 LTS | linux-fips | 4.15.0-1034.39 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1041.46 | — |
| Ubuntu Pro 14.04 LTS | linux | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1073.77 | USN-4391-1 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1089.99~14.04.1 | USN-4390-1 |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-184.214~14.04.1 | USN-4391-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | kernel-rt +12 | 4.18.0-305.rt7.72.el8 | RHSA-2021:1739 |
| RHEL 8 | perf +26 | 4.18.0-305.el8 | RHSA-2021:1578 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | kernel-tools-libs-devel | 4.18.0-305.el8 | ALSA-2021:1578 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | kernel-azure +2 | 4.12.14-8.33.1 | SUSE-SU-2020:1604-1 |
| SLES 15 SP1 | kernel-docs +5 | 4.12.14-197.45.1 | SUSE-SU-2020:1599-1 |
| SLES 15 | kernel-docs +6 | 4.12.14-150.52.1 | SUSE-SU-2020:1663-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.16.1 | SUSE-SU-2020:1587-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.23.1 | SUSE-SU-2020:1602-1 |
| SLES 12 SP4 | kernel-azure +2 | 4.12.14-6.43.1 | SUSE-SU-2020:1603-1 |
| SLES 12 SP4 | kernel-docs +4 | 4.12.14-95.54.1 | SUSE-SU-2020:1605-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 | kernel-docs +5 | 4.12.14-150.52.1 | SUSE-SU-2020:1663-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.16.1 | SUSE-SU-2020:1587-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.23.1 | SUSE-SU-2020:1602-1 |
| SLES for SAP 12 SP4 | kernel-azure +2 | 4.12.14-6.43.1 | SUSE-SU-2020:1603-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.54.1 | SUSE-SU-2020:1605-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.13.1 | SUSE-SU-2020:2478-1 |
| SLE Real Time 12 SP4 | kernel-rt +3 | 4.12.14-8.23.1 | SUSE-SU-2020:2156-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-197.45.1 | SUSE-SU-2020:1599-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_12 | 1-3.5.1 | SUSE-SU-2020:1599-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-150.52.1 | SUSE-SU-2020:1663-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_18 | 1-1.5.1 | SUSE-SU-2020:1663-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.23.1 | SUSE-SU-2020:1602-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_5 | 1-8.3.1 | SUSE-SU-2020:1602-1 |
| SLE Live Patching 12 SP4 | kernel-default | 4.12.14-95.54.1 | SUSE-SU-2020:1605-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_14 | 1-6.3.1 | SUSE-SU-2020:1605-1 |
| SLE HPC 15 | kernel-docs +5 | 4.12.14-150.52.1 | SUSE-SU-2020:1663-1 |
| SUSE Real Time Module 15 SP1 | kernel-rt +3 | 4.12.14-14.28.1 | SUSE-SU-2020:2487-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | kernel-docs | 4.12.14-lp151.28.52.2 | openSUSE-SU-2020:0801-1 |
| openSUSE Leap 15.1 | kernel-obs-qa +1 | 4.12.14-lp151.28.52.3 | openSUSE-SU-2020:0801-1 |
| openSUSE Leap 15.1 | kernel-syms +5 | 4.12.14-lp151.28.52.1 | openSUSE-SU-2020:0801-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | perf +19 | 4.18.0-305.el8 | ELSA-2021-1578 |
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-124.46.3.el7uek | ELSA-2021-9002, ELSA-2020-5755, ELSA-2020-5714 |
| Oracle Linux 7 | perf +5 | 4.14.35-1902.304.6.el7uek | ELSA-2020-5755, ELSA-2020-5714 |
Advisories 29
- ALSA-2021:1578 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2021:1739 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- RHSA-2021:1578 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Aug 7, 2026
- USN-4390-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-4389-1 linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux-riscv vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-4387-1 linux, linux-aws, linux-aws-5.3, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2, linux-raspi2-5.3 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-4388-1 linux-gke-5.0, linux-oem-osp1 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-4391-1 linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- DSA-4698-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-4699-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2242-1 linux-4.9 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2241-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2020:0801-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2156-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2487-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1603-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2478-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1663-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1587-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1604-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1602-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:1599-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-2774 Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Dec 9, 2025
- SUSE-SU-2020:1605-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2022-1995 Google Android: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 30, 2024
- ELSA-2021-1578 Important: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 25, 2021
- ELSA-2021-9002 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 7, 2021
- ELSA-2020-5755 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jul 10, 2020
- ELSA-2020-5714 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 9, 2020
References
- https://patchwork.kernel.org/patch/11463781/
- https://lkml.org/lkml/2020/3/23/52
- https://github.com/torvalds/linux/commit/056ad39ee9253873522f6469c3364964a322912b
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=056ad39ee9253873522f6469c3364964a322912b
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.8
- https://security.netapp.com/advisory/ntap-20200608-0001/
- [debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update mailing-list
- [debian-lts-announce] 20200610 [SECURITY] [DLA 2242-1] linux-4.9 security update mailing-list
- [debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update mailing-list
- DSA-4698 vendor-advisory
- DSA-4699 vendor-advisory
- openSUSE-SU-2020:0801 vendor-advisory
- USN-4388-1 vendor-advisory
- USN-4389-1 vendor-advisory
- USN-4387-1 vendor-advisory
- USN-4390-1 vendor-advisory
- USN-4391-1 vendor-advisory