Description
In the Linux kernel, the following vulnerability has been resolved:
mtd: require write permissions for locking and badblock ioctls
MEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require
write permission. Depending on the hardware MEMLOCK might even be
write-once, e.g. for SPI-NOR flashes with their WP# tied to GND. OTPLOCK
is always write-once.
MEMSETBADBLOCK modifies the bad block table.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 4.4.233 – < 4.4.269, 4.9.233 – < 4.9.269, 4.14.194 – < 4.14.233, 4.19.139 – < 4.19.191, 5.4.58 – < 5.4.119, 5.7.15 – < 5.8, 5.8.1 – < 5.9, 5.9 | 4.4.269 |
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 | 5.10.38-1 | — |
| Debian 13 | linux | 5.10.38-1 | — |
| Debian 12 | linux | 5.10.38-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +22 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-77.86 | — |
| Ubuntu 20.04 LTS | linux-aws +1 | 5.4.0-1051.53 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1013.16 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1046.49 | — |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1018.19 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1041.42 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1048.52 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1038.41 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-151.157 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1109.116 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 +1 | 5.4.0-1051.53~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1121.134 | — |
| Ubuntu 18.04 LTS | linux-gcp +13 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1106.120 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1046.49~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-77.86~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1097.99 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1078.86 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1048.52~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1038.41~18.04.1 | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS 20.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1028.32 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2051.53 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2033.37 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1066.75 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2016.18 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1107.114 | — |
| Ubuntu Pro 16.04 LTS | linux | 4.4.0-261.295 | USN-7148-1 |
| Ubuntu Pro 16.04 LTS | linux-aws | 4.4.0-1176.191 | USN-7148-1 |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1109.116~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1121.134~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1106.120~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-151.157~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-kvm | 4.4.0-1139.149 | USN-7148-1 |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1078.86~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1138.144 | USN-7148-1 |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1121.134~14.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-261.295~14.04.1 | USN-7148-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | kernel-rt +12 | 4.18.0-553.5.1.rt7.346.el8_10 | RHSA-2024:3627 |
| RHEL 8 | perf +26 | 4.18.0-553.5.1.el8_10 | RHSA-2024:3618 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | kernel-rt +11 | 4.18.0-553.5.1.rt7.346.el8_10 | ALSA-2024:3627 |
| AlmaLinux 8 | perf +24 | 4.18.0-553.5.1.el8_10 | ALSA-2024:3618 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | kernel | 4.18.0-553.5.1.el8_10 | RLSA-2024:3618 |
| Rocky Linux 8 | kernel-rt | 4.18.0-553.5.1.rt7.346.el8_10 | RLSA-2024:3627 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.158.1.150300.18.92.5 | SUSE-SU-2024:1489-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-150200.24.188.1.150200.9.95.3 | SUSE-SU-2024:1454-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.188.1 | SUSE-SU-2024:1454-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.182.1 | SUSE-SU-2024:1643-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.216.1 | SUSE-SU-2024:1870-1 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP3 | kernel-default-base | 5.3.18-150300.59.158.1.150300.18.92.5 | SUSE-SU-2024:1489-1 |
| SLES for SAP 15 SP3 | kernel-docs +5 | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SLES for SAP 15 SP2 | kernel-default-base | 5.3.18-150200.24.188.1.150200.9.95.3 | SUSE-SU-2024:1454-1 |
| SLES for SAP 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.188.1 | SUSE-SU-2024:1454-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.182.1 | SUSE-SU-2024:1643-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.216.1 | SUSE-SU-2024:1870-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.182.1 | SUSE-SU-2024:1646-1 |
| SLE Micro 5.2 | kernel-default | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SLE Micro 5.2 | kernel-default-base | 5.3.18-150300.59.158.1.150300.18.92.5 | SUSE-SU-2024:1489-1 |
| SLE Micro 5.2 | kernel-rt +1 | 5.3.18-150300.166.1 | SUSE-SU-2024:1465-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.158.1.150300.18.92.5 | SUSE-SU-2024:1489-1 |
| SLE Micro 5.1 | kernel-rt +1 | 5.3.18-150300.166.1 | SUSE-SU-2024:1465-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_43 | 1-150300.7.3.5 | SUSE-SU-2024:1489-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-150200.24.188.1 | SUSE-SU-2024:1454-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_47 | 1-150200.5.3.3 | SUSE-SU-2024:1454-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.216.1 | SUSE-SU-2024:1870-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_56 | 1-8.3.1 | SUSE-SU-2024:1870-1 |
| SLE HPC 15 SP3 | kernel-64kb +6 | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SLE HPC 15 SP3 | kernel-default-base | 5.3.18-150300.59.158.1.150300.18.92.5 | SUSE-SU-2024:1489-1 |
| SLE HPC 15 SP2 | kernel-default-base | 5.3.18-150200.24.188.1.150200.9.95.3 | SUSE-SU-2024:1454-1 |
| SLE HPC 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.188.1 | SUSE-SU-2024:1454-1 |
| SUSE Enterprise Storage 7.1 | kernel-64kb +6 | 5.3.18-150300.59.158.1 | SUSE-SU-2024:1489-1 |
| SUSE Enterprise Storage 7.1 | kernel-default-base | 5.3.18-150300.59.158.1.150300.18.92.5 | SUSE-SU-2024:1489-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | kernel-livepatch-4.14.238-182.421 | 1.0-0.amzn2 | ALAS2-2021-1685 |
| Amazon Linux 2 | perf +8 | 4.14.238-182.421.amzn2 | ALAS2-2021-1685 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | perf +19 | 4.18.0-553.5.1.el8_10 | ELSA-2024-3618 |
Advisories 16
- RHSA-2024:3627 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- USN-7148-1 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- ALSA-2024:3627 Moderate: kernel-rt security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:3618 Moderate: kernel update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:3618 Red Hat Security Advisory: kernel update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- WID-SEC-2024-0527 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 4, 2026
- RLSA-2024:3627 Moderate: kernel-rt security and bug fix update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2024:3618 Moderate: kernel update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2024:1489-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1870-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1454-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1646-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1643-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1465-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2021-1685 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 2, 2025
- ELSA-2024-3618 Moderate: kernel update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jun 5, 2024
References
- https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf
- https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0
- https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee
- https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37
- https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981
- https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e
- https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b
- https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668
- https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366