Description
An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.
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 | 5.7.6-1 | — |
| Debian 13 | linux | 5.7.6-1 | — |
| Debian 12 | linux | 5.7.6-1 | — |
| Debian 10 | linux | 4.19.232-1 | DSA-5096-1 |
| Debian 9 | linux | 4.9.272-1 | DLA-2689-1 |
| Debian 9 | linux-4.19 | 4.19.194-1~deb9u1 | DLA-2941-1, 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-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-45.49 | — |
| Ubuntu 20.04 LTS | linux-aws +2 | 5.4.0-1022.22 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1023.23 | — |
| Ubuntu 20.04 LTS | linux-gke +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1021.21 | — |
| Ubuntu 20.04 LTS | linux-oem-5.6 | 5.6.0-1020.20 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1016.17 | — |
| Ubuntu 20.04 LTS | linux-riscv | 5.4.0-31.35 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-136.140 | USN-4749-1 |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1094.101 | USN-4749-1 |
| Ubuntu 18.04 LTS | linux-aws-5.4 +2 | 5.4.0-1022.22~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1108.120 | USN-4749-1 |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1023.23~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-dell300x | 4.15.0-1012.16 | USN-4749-1 |
| Ubuntu 18.04 LTS | linux-gcp +12 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1093.106 | USN-4749-1 |
| Ubuntu 18.04 LTS | linux-gke-5.3 | 5.3.0-1032.34~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-45.49~18.04.2 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1085.87 | USN-4749-1 |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1065.73 | USN-4749-1 |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1016.17~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi2 +1 | 4.15.0-1079.84 | USN-4749-1 |
| Ubuntu 18.04 LTS | linux-raspi2-5.3 | 5.3.0-1030.32~18.04.2 | — |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1096.105 | USN-4749-1 |
| Ubuntu 16.04 LTS | linux | 4.4.0-203.235 | USN-4748-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1122.136 | USN-4748-1 |
| Ubuntu 16.04 LTS | linux-aws-hwe | 4.15.0-1094.101~16.04.1 | USN-4749-1 |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1108.120~16.04.1 | USN-4749-1 |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1093.106~16.04.1 | USN-4749-1 |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-136.140~16.04.1 | USN-4749-1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1088.97 | USN-4748-1 |
| Ubuntu 16.04 LTS | linux-oracle | 4.15.0-1065.73~16.04.1 | USN-4749-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1146.156 | USN-4748-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1150.160 | USN-4748-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS 20.04 LTS | linux-aws-fips +2 | 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-gcp-fips | 5.4.0-1067.71~20.04.1 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2037.39 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2020.23 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1053.61 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1056.62 | — |
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1114.123~20.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1086.90 | USN-4748-1 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1108.120~14.04.1 | USN-4749-1 |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-203.235~14.04.1 | USN-4748-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | kernel-azure +2 | 5.3.18-18.38.1 | SUSE-SU-2021:0738-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-24.52.1.9.24.1 | SUSE-SU-2021:0741-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-24.52.1 | SUSE-SU-2021:0741-1 |
| SLES 15 SP1 | kernel-docs +5 | 4.12.14-197.86.1 | SUSE-SU-2021:0737-1 |
| SLES 15 | kernel-docs +6 | 4.12.14-150.69.1 | SUSE-SU-2021:0740-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.50.1 | SUSE-SU-2021:1175-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.66.2 | SUSE-SU-2021:1210-1 |
| SLES 12 SP4 | kernel-syms +2 | 4.12.14-95.71.1 | SUSE-SU-2021:0736-1 |
Show 20 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP1 | kernel-docs +4 | 4.12.14-197.86.1 | SUSE-SU-2021:0737-1 |
| SLES for SAP 15 | kernel-docs +5 | 4.12.14-150.69.1 | SUSE-SU-2021:0740-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.50.1 | SUSE-SU-2021:1175-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.66.2 | SUSE-SU-2021:1210-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.71.1 | SUSE-SU-2021:0736-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.37.1 | SUSE-SU-2021:1176-1 |
| SLE Micro 5.0 | kernel-default | 5.3.18-24.52.1 | SUSE-SU-2021:0741-1 |
| SLE Micro 5.0 | kernel-default-base | 5.3.18-24.52.1.9.24.1 | SUSE-SU-2021:0741-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-24.52.1 | SUSE-SU-2021:0741-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_11 | 1-5.3.1 | SUSE-SU-2021:0741-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-197.86.1 | SUSE-SU-2021:0737-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_23 | 1-3.3.1 | SUSE-SU-2021:0737-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-150.69.1 | SUSE-SU-2021:0740-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_23 | 1-1.3.1 | SUSE-SU-2021:0740-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.66.2 | SUSE-SU-2021:1210-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_17 | 1-8.3.2 | SUSE-SU-2021:1210-1 |
| SLE Live Patching 12 SP4 | kernel-default | 4.12.14-95.71.1 | SUSE-SU-2021:0736-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_19 | 1-6.3.1 | SUSE-SU-2021:0736-1 |
| SLE HPC 15 SP1 | kernel-docs +4 | 4.12.14-197.86.1 | SUSE-SU-2021:0737-1 |
| SLE HPC 15 | kernel-docs +5 | 4.12.14-150.69.1 | SUSE-SU-2021:0740-1 |
| SUSE Real Time Module 15 SP2 | kernel-rt +3 | 5.3.18-28.1 | SUSE-SU-2021:0735-1 |
| SUSE OpenStack Cloud Crowbar 9 | kernel-syms +2 | 4.12.14-95.71.1 | SUSE-SU-2021:0736-1 |
| SUSE OpenStack Cloud 9 | kernel-syms +2 | 4.12.14-95.71.1 | SUSE-SU-2021:0736-1 |
| SUSE Manager Server 4.0 | kernel-docs +5 | 4.12.14-197.86.1 | SUSE-SU-2021:0737-1 |
| SUSE Manager Retail Branch Server 4.0 | kernel-docs +4 | 4.12.14-197.86.1 | SUSE-SU-2021:0737-1 |
| SUSE Manager Proxy 4.0 | kernel-docs +4 | 4.12.14-197.86.1 | SUSE-SU-2021:0737-1 |
| SUSE Enterprise Storage 6 | kernel-docs +4 | 4.12.14-197.86.1 | SUSE-SU-2021:0737-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.2 | kernel-default-base | 5.3.18-lp152.66.2.lp152.8.23.2 | openSUSE-SU-2021:0393-1 |
| openSUSE Leap 15.2 | kernel-docs +8 | 5.3.18-lp152.66.2 | openSUSE-SU-2021:0393-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | kernel-livepatch-4.14.232-176.381 | 1.0-0.amzn2 | ALAS2-2021-1636 |
| Amazon Linux 2 | perf +8 | 4.14.232-176.381.amzn2 | ALAS2-2021-1636 |
Advisories 20
- USN-4748-1 linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-4749-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- DSA-5096-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 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
- DLA-2941-1 linux-4.19 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2021:1210-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1175-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0740-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0736-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0735-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0737-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0738-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1176-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0741-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0393-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 7, 2025
- ALAS2-2021-1636 Moderate: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 23, 2024
- WID-SEC-2023-2841 Samsung Android: Mehrere Schwachstellen ermöglichen BSI CERT-Bund (WID) · Dec 5, 2023
- WID-SEC-2023-1984 Google Android: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 19, 2023
- WID-SEC-2023-2272 Samsung Android: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 5, 2023
References
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2045
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1f
- https://security.netapp.com/advisory/ntap-20210115-0002/
- http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
- [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
- [debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update mailing-list
- DSA-5096 vendor-advisory