The 6.18.6 stable kernel update contains a number of important fixes across the tree.
Updates may require up to 24 hours to propagate to mirrors. If the following command doesn't work, please retry later:
sudo dnf upgrade --refresh --advisory=FEDORA-2026-1f8f22d438Please log in to add feedback.
| 0 | 14 | Test Case kernel regression |
This update has been submitted for testing by jforbes.
This update's test gating status has been changed to 'waiting'.
This update's test gating status has been changed to 'failed'.
working fine
AMD Ryzen 7 5700U with Radeon Graphics Network: Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Device-2: MEDIATEK MT7921 802.11ax PCIe Wireless Network Adapterall tests passed
Works well here. Ryzen 3700x, Rog Strix B550-F, Nvidia from rpmfusion.
Works for me, the default tests passed OK..
Work Station, Asus prime mobo - Ryzen5 5600g/iGPU, 400 Series Chipset, 32 GiB RAM. (UEFI) Secure boot, 2x SSD's > RAID1 (ext4)
default & performance tests pass (KVM)
Working OK here.
After testing the 6.18.6 kernel installed using
sudo dnf install koji-toolsudo koji-tool install kernel*6.18*, I ran tests with the OCCT software and it passed all tests. CPU and GPU are OK. With kernels 6.18.4 and 6.18.5, my PC was experiencing a kernel panic.Screenshot: https://i.postimg.cc/fL6QgFjv/01.png
My Hardware: System: Host: 2804-870-7d0e-5500-d587-f8a9-8d82-a0c4.tascom.com.br Kernel: 6.18.6-200.fc43.x86_64 arch: x86_64 bits: 64 Desktop: KDE Plasma v: 6.5.4 Distro: Fedora Linux 43 (KDE Plasma Desktop Edition) Machine: Type: Desktop Mobo: Gigabyte model: B650 AORUS ELITE AX V2 serial: <superuser required> Firmware: UEFI vendor: American Megatrends LLC. v: F38 date: 12/17/2025 CPU: Info: 8-core AMD Ryzen 7 8700G w/ Radeon 780M Graphics [MT MCP] speed (MHz): avg: 2404 min/max: 423/5177 Graphics: Device-1: Advanced Micro Devices [AMD/ATI] Navi 48 [Radeon RX 9070/9070 XT/9070 GRE] driver: amdgpu v: kernel Device-2: Advanced Micro Devices [AMD/ATI] Phoenix1 driver: amdgpu v: kernel Device-3: Logitech C922 Pro Stream Webcam driver: snd-usb-audio,uvcvideo type: USB Display: wayland server: Xwayland v: 24.1.9 compositor: kwin_wayland driver: gpu: amdgpu resolution: 1: 2560x1440~180Hz 2: 1920x1080~60Hz API: EGL v: 1.5 drivers: radeonsi,swrast platforms: gbm,wayland,x11,surfaceless,device API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 25.2.7 renderer: AMD Radeon RX 9070 XT (radeonsi gfx1201 LLVM 21.1.5 DRM 3.64 6.18.6-200.fc43.x86_64) API: Vulkan v: 1.4.328 drivers: radv,llvmpipe surfaces: N/A Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo de: kscreen-console,kscreen-doctor wl: wayland-info x11: xdriinfo, xdpyinfo, xprop, xrandr Network: Device-1: Realtek RTL8852CE PCIe 802.11ax Wireless Network driver: rtw89_8852ce Device-2: Realtek RTL8125 2.5GbE driver: r8169 Drives: Local Storage: total: 4.82 TiB used: 1.41 TiB (29.1%) ID-1: /dev/nvme0n1 vendor: Kingston model: SNV3S1000G size: 931.51 GiB ID-2: /dev/nvme1n1 vendor: Seagate model: XPG GAMMIX S70 BLADE size: 953.87 GiB ID-3: /dev/nvme2n1 vendor: Seagate model: XPG GAMMIX S70 BLADE size: 953.87 GiB ID-4: /dev/sda vendor: Seagate model: ST2000DM008-2EP102 size: 1.82 TiB ID-5: /dev/sdb vendor: Transcend model: TS256GSSD370 size: 238.47 GiB Info: Memory: total: 32 GiB note: est. available: 30.46 GiB used: 6.23 GiB (20.5%) Processes: 636 Uptime: 2h 30m Shell: Bash inxi: 3.3.40
Fedora slimbook 2 14"
Seems to work fine on bare-metal Lenovo ThinkPad L390 with UEFI and SecureBoot. No issues to report so far and kernel regression tests PASS.
FEDORA-2026-1f8f22d438 ejected from the push because "Cannot find relevant tag for kernel-6.18.6-200.fc43. None of ['f43-updates-testing', 'f43-updates-testing-pending'] are in ['epel9-next-testing-candidate', 'f44-updates-candidate', 'eln-updates-candidate', 'epel8-testing-candidate', 'epel9-testing-candidate', 'f44-flatpak-updates-candidate', 'epel10.2-testing-candidate', 'f42-flatpak-updates-candidate', 'f42-updates-candidate', 'epel10.1-testing-candidate', 'f43-flatpak-updates-candidate', 'f43-container-updates-candidate', 'f43-updates-candidate']."
This update's test gating status has been changed to 'waiting'.
This update's test gating status has been changed to 'passed'.
LGTM, tested on Xeon W-2225 + Arc A380 and Ryzen R7500F + RX 9070 XT
Works. Interestingly, it seems that bodhi has a bit of a split mind on this one. The package is in testing (e.g. https://dl.fedoraproject.org/pub/fedora/linux/updates/testing/43/Everything/x86_64/Packages/k/kernel-core-6.18.6-200.fc43.x86_64.rpm), but the update says pending. The message above claims it is not correctly tagged and was ejected from the push...
This update has been submitted for testing by jforbes.
@bojan, reason is wrong tagging:
f43-updates-candidate f43-updates-testing
other packages are affected as well. It looks like wrong handling of failed compose jobs.
I fixed that all yesterday, it should sync up to reality when the next update push happens. Feel free to note releng things in matrix in #releng:fedoraproject.org or forge.fedoraproject.org/releng/tickets/
Works
Thinkpad T14 AMD Ryzen 5 Pro.
Test was a PASS.
Works.
Ryzen 9700X + RX 9060XT
Test suite called with default ./default/cachedrop PASS
./default/insert_leap_second PASS
./default/libhugetlbfs SKIP
./default/memfd SKIP
./default/modsign PASS
./default/mq-memory-corruption PASS
./default/paxtest SKIP
./default/posix_timers PASS
./default/selinux-dac-controls PASS
./default/stack-randomness PASS
./default/sysfs-perms PASS
./default/timer-overhead PASS
Test suite complete PASS
I just install with:
$ sudo dnf --enablerepo=updates-testing install \ kernel-6.18.6-200.fc43 \ kernel-modules-extra-6.18.6-200.fc43 \ kernel-devel-6.18.6-200.fc43 \ kernel-headers Updating and loading repositories: Repositories loaded. Package "kernel-headers-6.18.3-200.fc43.x86_64" is already installed.
Package Arch Version Repository Size Removing: kernel-devel x86_64 6.18.3-200.fc43 <unknown> 84.4 MiB Installing: kernel x86_64 6.18.6-200.fc43 updates-testing 0.0 B kernel-core x86_64 6.18.6-200.fc43 updates-testing 97.6 MiB kernel-devel x86_64 6.18.6-200.fc43 updates-testing 84.4 MiB kernel-modules x86_64 6.18.6-200.fc43 updates-testing 96.2 MiB kernel-modules-core x86_64 6.18.6-200.fc43 updates-testing 67.9 MiB kernel-modules-extra x86_64 6.18.6-200.fc43 updates-testing 4.2 MiB
No issues noted. Desktop i5-13400F Z690 Radeon RX 6600 + Server Xeon E-2226G C246
This update has been pushed to testing.
This update can be pushed to stable now if the maintainer wishes
Passed with some warning
Intel(R) Core(TM) i5-2520M (4) @ 3.20 GHz
Test suite called with default ./default/cachedrop PASS
./default/insert_leap_second PASS
./default/libhugetlbfs SKIP
./default/memfd SKIP
./default/modsign PASS
./default/mq-memory-corruption PASS
./default/paxtest SKIP
./default/posix_timers PASS
./default/selinux-dac-controls PASS
./default/stack-randomness PASS
./default/sysfs-perms WARN
./default/timer-overhead PASS
Test suite complete WARN
WARN Section: Starting test ./default/sysfs-perms Found world-writable files in sysfs. /sys/kernel/debug/ieee80211/phy0/rc/fixed_rate_idx
Works great! LGTM! =)
test suite performed
Works well on a Framework 13 with AMD Ryzen AI 300 Series CPU.
no problems with Thinkpad P1 Gen4 (Intel GPU)
This update has been submitted for stable by jforbes.
This update has been pushed to stable.