I can reliably reproduce this issue and have a clear regression boundary. Working kernel:
6.14.0-37-generic RTL8188EU USB Wi-Fi (0bda:8179) works normally driver rtl8xxxu loads successfully Broken kernels: 6.17.0-14-generic 6.17.0-29-generic USB device is detected but driver fails to load Error in dmesg: rtl8xxxu: disagrees about version of symbol ieee80211_register_hw rtl8xxxu: Unknown symbol ieee80211_register_hw (err -22) On the failing kernels, mac80211/cfg80211 are loaded from: /lib/modules/.../ubuntu/iwlwifi/mac80211.ko.zst /lib/modules/.../ubuntu/iwlwifi/cfg80211.ko.zst while standard kernel versions also exist in: /lib/modules/.../kernel/net/mac80211/ /lib/modules/.../kernel/net/wireless/ The system also loads iwlwifi-stack-public / iwlwifi_compat on the failing kernels. This appears to be a kernel wireless stack ABI mismatch/regression introduced in the 6.17 HWE series affecting rtl8xxxu, likely related to the Ubuntu iwlwifi stack replacement conflicting with standard mac80211/cfg80211 modules. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2142638 Title: linux-modules-iwlwifi-6.17.0-1012-oem disagrees about version of symbol wiphy_locked_debugfs_read To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/backport-iwlwifi-dkms/+bug/2142638/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
