Description
A flaw was found in the Linux kernel before 5.9-rc4. A failure of the file system metadata validator in XFS can cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt. This can lead to the filesystem being shutdown, or otherwise rendered inaccessible until it is remounted, leading to a denial of service. The highest threat from this vulnerability is to system availability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux Kernel | kernel | before 5.9-rc4 | — |
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 | 5.8.7-1 | — |
| Debian 13 | linux | 5.8.7-1 | — |
| Debian 12 | linux | 5.8.7-1 | — |
| Debian 9 | linux-4.19 | 4.19.146-1~deb9u1 | DLA-2385-1 |
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 | 5.4.0-51.56 | USN-4576-1 |
| Ubuntu 20.04 LTS | linux-aws +2 | 5.4.0-1028.29 | USN-4576-1 |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1031.32 | USN-4576-1 |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1026.27 | USN-4576-1 |
| Ubuntu 20.04 LTS | linux-oem-5.6 | 5.6.0-1031.32 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1021.24 | USN-4576-1 |
| Ubuntu 20.04 LTS | linux-raspi2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-riscv | 5.4.0-36.41 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 +2 | 5.4.0-1028.29~18.04.1 | USN-4576-1 |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1031.32~18.04.1 | USN-4576-1 |
| Ubuntu 18.04 LTS | linux-gcp +11 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gke-5.4 | 5.4.0-1027.28~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gkeop-5.4 | 5.4.0-1003.3 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-51.56~18.04.1 | USN-4576-1 |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1021.24~18.04.1 | USN-4576-1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 2 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-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 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | kernel-rt +12 | 4.18.0-193.28.1.rt13.77.el8_2 | RHSA-2020:4289 |
| RHEL 8 | kpatch-patch-4_18_0-193 | 1-7.el8 | RHSA-2020:4331 |
| RHEL 8 | kpatch-patch-4_18_0-193_13_2 +2 | 1-2.el8_2 | RHSA-2020:4331 |
| RHEL 8 | kpatch-patch-4_18_0-193_1_2 | 1-5.el8_2 | RHSA-2020:4331 |
| RHEL 8 | kpatch-patch-4_18_0-193_6_3 | 1-4.el8_2 | RHSA-2020:4331 |
| RHEL 8 | perf +26 | 4.18.0-193.28.1.el8_2 | RHSA-2020:4286 |
| RHEL 7 | kernel-rt +10 | 3.10.0-1160.11.1.rt56.1145.el7 | RHSA-2020:5441 |
| RHEL 7 | kpatch-patch-3_10_0-1160 +3 | 1-1.el7 | RHSA-2020:5050 |
| RHEL 7 | perf +18 | 3.10.0-1160.11.1.el7 | RHSA-2020:5437 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147 | 1-18.el8 | RHSA-2020:4332 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_0_2 +1 | 1-14.el8 | RHSA-2020:4332 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_13_2 | 1-5.el8_1 | RHSA-2020:4332 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_20_1 | 1-4.el8_1 | RHSA-2020:4332 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_24_2 +1 | 1-2.el8_1 | RHSA-2020:4332 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_3_1 | 1-14.el8_1 | RHSA-2020:4332 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_5_1 | 1-9.el8_1 | RHSA-2020:4332 |
| RHEL 8.1 EUS | kpatch-patch-4_18_0-147_8_1 | 1-7.el8_1 | RHSA-2020:4332 |
| RHEL 8.1 EUS | perf +26 | 4.18.0-147.32.1.el8_1 | RHSA-2020:4287 |
| RHEL 8.0 E4S | perf +18 | 4.18.0-80.31.1.el8_0 | RHSA-2020:5199 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | kernel-azure +2 | 5.3.18-18.21.1 | SUSE-SU-2020:2908-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-24.24.1.9.7.6 | SUSE-SU-2020:2879-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-24.24.1 | SUSE-SU-2020:2879-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-24.24.1 | SUSE-SU-2020:2879-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_4 | 1-5.3.6 | SUSE-SU-2020:2879-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.2 | kernel-default-base | 5.3.18-lp152.44.1.lp152.8.8.1 | openSUSE-SU-2020:1586-1 |
| openSUSE Leap 15.2 | kernel-docs +8 | 5.3.18-lp152.44.1 | openSUSE-SU-2020:1586-1 |
| openSUSE Leap 15.2 | kernel-rt +3 | 5.3.18-lp152.3.5.1 | openSUSE-SU-2021:0242-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | perf +18 | 4.18.0-193.28.1.el8_2 | ELSA-2020-4286 |
| Oracle Linux 7 | kernel-uek +8 | 4.14.35-2025.402.2.1.el7uek | ELSA-2020-5913, ELSA-2020-5884 |
| Oracle Linux 7 | perf +12 | 3.10.0-1160.11.1.el7 | ELSA-2020-5913, ELSA-2020-5884, ELSA-2020-5437 |
Advisories 20
- 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
- RHSA-2020:5199 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:5050 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4332 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4331 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2020:4289 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2020:4287 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2020:4286 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- USN-4576-1 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
- DLA-2385-1 linux-4.19 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2021:0242-1 Security update for RT kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2908-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2879-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1586-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-1615 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 22, 2023
- ELSA-2020-5437 Important: kernel security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 16, 2020
- ELSA-2020-5913 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 10, 2020
- ELSA-2020-4286 Important: kernel security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 21, 2020
- ELSA-2020-5884 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 12, 2020
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f4020438fab05364018c91f7e02ebdd192085933
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14385
- [debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security update mailing-list
- openSUSE-SU-2020:1586 vendor-advisory
- USN-4576-1 vendor-advisory