Description
In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered.
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 | — |
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 | USN-4483-1 |
| Ubuntu 20.04 LTS | linux-aws +2 | 5.4.0-1022.22 | USN-4483-1 |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1023.23 | USN-4483-1 |
| Ubuntu 20.04 LTS | linux-gke +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1021.21 | USN-4483-1 |
| Ubuntu 20.04 LTS | linux-oem-5.6 | 5.6.0-1031.32 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1016.17 | USN-4483-1 |
| Ubuntu 20.04 LTS | linux-riscv | 5.4.0-31.35 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-115.116 | USN-4485-1 |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1080.84 | USN-4485-1 |
| Ubuntu 18.04 LTS | linux-aws-5.3 +1 | 5.3.0-1033.35 | USN-4465-1 |
| Ubuntu 18.04 LTS | linux-aws-5.4 +2 | 5.4.0-1022.22~18.04.1 | USN-4483-1 |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1093.103 | USN-4485-1 |
| Ubuntu 18.04 LTS | linux-azure-5.3 | 5.3.0-1035.36 | USN-4465-1 |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1023.23~18.04.1 | USN-4483-1 |
| Ubuntu 18.04 LTS | linux-gcp +8 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1081.92 | USN-4485-1 |
| Ubuntu 18.04 LTS | linux-gke-4.15 | 4.15.0-1067.70 | USN-4485-1 |
| Ubuntu 18.04 LTS | linux-hwe | 5.3.0-65.59 | USN-4465-1 |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-45.49~18.04.2 | USN-4483-1 |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1072.73 | USN-4485-1 |
| Ubuntu 18.04 LTS | linux-oem | 4.15.0-1094.104 | USN-4485-1 |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1051.55 | USN-4485-1 |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1016.17~18.04.1 | USN-4483-1 |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1068.72 | USN-4485-1 |
| Ubuntu 18.04 LTS | linux-raspi2-5.3 | 5.3.0-1032.34 | — |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1084.92 | USN-4485-1 |
| Ubuntu 16.04 LTS | linux-aws-hwe | 4.15.0-1080.84~16.04.1 | USN-4485-1 |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1093.103~16.04.1 | USN-4485-1 |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1081.92~16.04.1 | USN-4485-1 |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-115.116~16.04.1 | USN-4485-1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu 16.04 LTS | linux-oracle | 4.15.0-1051.55~16.04.1 | USN-4485-1 |
Show 5 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-aws-fips +2 | 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 | 4.15.0-2025.25 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2007.8 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1039.44 | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1093.103~14.04.1 | USN-4485-1 |
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 |
| RHEL 7 | kernel +15 | 3.10.0-1160.11.1.el7 | RHSA-2020:5437 |
| RHEL 7 | kernel-rt +10 | 3.10.0-1160.11.1.rt56.1145.el7 | RHSA-2020:5441 |
| RHEL 7 | perf +2 | 3.10.0-957.70.1.el7 | RHSA-2021:0878, RHSA-2020:5437 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7.7 EUS | perf +18 | 3.10.0-1062.45.1.el7 | RHSA-2021:0526 |
| RHEL 7.6 EUS | perf +18 | 3.10.0-957.70.1.el7 | RHSA-2021:0878 |
| RHEL 7.4 TUS | perf +11 | 3.10.0-693.82.1.el7 | RHSA-2021:0760 |
| RHEL 7.4 E4S | perf +13 | 3.10.0-693.82.1.el7 | RHSA-2021:0760 |
| RHEL 7.4 AUS | perf +11 | 3.10.0-693.82.1.el7 | RHSA-2021:0760 |
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 | 4.12.14-8.41.1 | SUSE-SU-2020:2541-1 |
| SLES 15 SP1 | kernel-docs +5 | 4.12.14-197.56.1 | SUSE-SU-2020:2575-1 |
| SLES 15 | kernel-docs +6 | 4.12.14-150.58.1 | SUSE-SU-2020:2610-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.25.1 | SUSE-SU-2020:2540-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.37.1 | SUSE-SU-2020:2574-1 |
| SLES 12 SP4 | kernel-syms +2 | 4.12.14-95.60.1 | SUSE-SU-2020:2623-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 | kernel-docs +5 | 4.12.14-150.58.1 | SUSE-SU-2020:2610-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.25.1 | SUSE-SU-2020:2540-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.37.1 | SUSE-SU-2020:2574-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.60.1 | SUSE-SU-2020:2623-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.16.1 | SUSE-SU-2020:2605-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_0 | 3-8.2 | SUSE-SU-2020:3187-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-197.56.1 | SUSE-SU-2020:2575-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_11 | 5-2.2 | SUSE-SU-2020:3180-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_12 | 3-2.2 | SUSE-SU-2020:3190-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_13 +1 | 3-2.1 | SUSE-SU-2020:3190-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_15 | 1-3.3.2 | SUSE-SU-2020:2575-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_7 +1 | 7-2.2 | SUSE-SU-2020:3180-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_9 +1 | 6-2.2 | SUSE-SU-2020:3180-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-150.58.1 | SUSE-SU-2020:2610-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_16 +1 | 7-2.2 | SUSE-SU-2020:3180-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_18 | 3-2.2 | SUSE-SU-2020:3180-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_19 | 3-2.1 | SUSE-SU-2020:3180-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_20 | 1-1.3.1 | SUSE-SU-2020:2610-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.37.1 | SUSE-SU-2020:2574-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_0 | 7-18.2 | SUSE-SU-2020:3204-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_1 +1 | 7-2.2 | SUSE-SU-2020:3204-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_3 | 6-2.2 | SUSE-SU-2020:3204-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_4 | 5-2.2 | SUSE-SU-2020:3204-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_5 +1 | 3-2.2 | SUSE-SU-2020:3210-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_7 +1 | 3-2.1 | SUSE-SU-2020:3210-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_9 | 1-8.5.1 | SUSE-SU-2020:2574-1 |
| SLE Live Patching 12 SP4 | kernel-default | 4.12.14-95.60.1 | SUSE-SU-2020:2623-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_10 +1 | 7-2.2 | SUSE-SU-2020:3204-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_12 | 6-2.2 | SUSE-SU-2020:3204-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_13 | 5-2.2 | SUSE-SU-2020:3204-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_14 | 3-2.2 | SUSE-SU-2020:3210-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_15 | 3-2.1 | SUSE-SU-2020:3210-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_16 | 1-6.3.1 | SUSE-SU-2020:2623-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_9 | 8-2.2 | SUSE-SU-2020:3204-1 |
| SLE HPC 15 | kernel-docs +5 | 4.12.14-150.58.1 | SUSE-SU-2020:2610-1 |
| SUSE Real Time Module 15 SP1 | kernel-rt +3 | 4.12.14-14.31.1 | SUSE-SU-2020:2631-1 |
| SUSE OpenStack Cloud Crowbar 9 | kernel-syms +2 | 4.12.14-95.60.1 | SUSE-SU-2020:2623-1 |
| SUSE OpenStack Cloud 9 | kernel-syms +2 | 4.12.14-95.60.1 | SUSE-SU-2020:2623-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | kernel-docs +8 | 4.12.14-lp151.28.63.1 | openSUSE-SU-2020:1325-1 |
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 +8 | 4.14.35-1902.306.2.el7uek | ELSA-2020-5885, ELSA-2020-5848, ELSA-2020-5845 |
| Oracle Linux 7 | perf +12 | 3.10.0-1160.11.1.el7 | ELSA-2020-5885, ELSA-2020-5848, ELSA-2020-5845 |
Advisories 31
- 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
- RHSA-2021:0878 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:0760 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:0526 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:5441 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:5437 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-4485-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, 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-4483-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-4465-1 linux-hwe, linux-aws-5.3, linux-azure-5.3, linux-gke-5.3 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- SUSE-SU-2020:2605-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3180-1 Security update for the Linux Kernel (Live Patch 7 for SLE 15 SP1) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2540-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2631-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3210-1 Security update for the Linux Kernel (Live Patch 7 for SLE 12 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3187-1 Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP2) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2575-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3204-1 Security update for the Linux Kernel (Live Patch 0 for SLE 12 SP5) SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1325-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2610-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2623-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3190-1 Security update for the Linux Kernel (Live Patch 13 for SLE 15 SP1) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2541-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2574-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2021-1578 Important: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 25, 2021
- ELSA-2020-5437 Important: kernel security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 16, 2020
- ELSA-2020-5885 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 12, 2020
- ELSA-2020-5848 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 14, 2020
- ELSA-2020-5844 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 11, 2020
- ELSA-2020-5845 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 11, 2020
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8
- USN-4465-1 vendor-advisory
- openSUSE-SU-2020:1325 vendor-advisory
- USN-4483-1 vendor-advisory
- USN-4485-1 vendor-advisory
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://security.netapp.com/advisory/ntap-20200904-0003/
- https://www.starwindsoftware.com/security/sw-20210325-0004/