I worked around this bug by manually downloading iwlwifi-8000C-36.ucode and iwlwifi-8265-36.ucode from https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux- firmware.git/ and then installing them in /lib/firmware . Now I have firmware version 36.77d01142.0 and it seemed to solve the issue. The network card has been stable for a day or so. Here's my note: https://nyllep.wordpress.com/2020/04/09/updating-linux-iwlwifi-firmware/
I hope the developer can backport the fix, because this essentially can be used for denial-of-service attack. Any client on the same wifi network can just initiate a TDLS connection setup request and it will crash the network interface. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1836414 Title: Wireless 8265 / 8275 crashing Status in linux-firmware package in Ubuntu: Confirmed Bug description: The Intel 8265 / 8275 Wireless in my Lenovo ThinkPad X1 Yoga (Gen 3) keeps constantly crashing with Jun 28 21:09:46 thinkflurl wpa_supplicant[882]: TDLS: Creating peer entry for 1c:23:2c:6e:90:09 Jun 28 21:09:46 thinkflurl wpa_supplicant[882]: TDLS: Dialog Token in TPK M1 1 Jun 28 21:09:46 thinkflurl kernel: iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x82000000. I'm reporting this against the linux-firmware package because I found this bug report https://bugzilla.kernel.org/show_bug.cgi?id=203055 and the firmware posted in comment 1 fixed the crashes. But the thing is, on Jun 28 21:09:46 this crash happend the first time after months of trouble free wifi. And in dpkg.log I don't see any updates to this package before the crash. So I have no clue, what caused this. What I expected to happen: I expected a stable wifi connection What happens: Wifi keeps crashing ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: linux-firmware 1.178.2 [modified: lib/firmware/iwlwifi-8000C-36.ucode lib/firmware/iwlwifi-8265-36.ucode] ProcVersionSignature: Ubuntu 5.0.0-20.21-generic 5.0.8 Uname: Linux 5.0.0-20-generic x86_64 ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 CurrentDesktop: XFCE Date: Fri Jul 12 20:46:10 2019 Dependencies: InstallationDate: Installed on 2019-04-06 (97 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190326.2) PackageArchitecture: all SourcePackage: linux-firmware UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1836414/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
