https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=286219
--- Comment #18 from [email protected] --- A commit in branch stable/15 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=86417d5b061f7d385a09ae557504e8ef306ecbf9 commit 86417d5b061f7d385a09ae557504e8ef306ecbf9 Author: Bjoern A. Zeeb <[email protected]> AuthorDate: 2026-03-08 12:48:51 +0000 Commit: Bjoern A. Zeeb <[email protected]> CommitDate: 2026-03-11 16:53:24 +0000 LinuxKPI: 802.11: lkpi_sta_auth_to_scan() fail graciously on lsta == NULL Usually after a firmware crash, we see reports of crashes in lkpi_sta_auth_to_scan(). One of the last ones was in the PR mentioned below. These crashes are often attributed as the problem while the real problem happened before. At this point try avoid the NULL pointer and to fail graciously if lvif->iv_bss (lsta) is no longer set. This way users have a chance to possibly recover using netif restart wlan0 rather than dealing with a panic. See if this helps us to better track down the original problems rather than the follow-up crash. On a debug kernel the KASSERT should normally have caught that condition as well but we see panics on page faults were the log line was there but then the lsta->ni deref has happened, which is after the KASSERT. I have not checked if this is a reordering problem or if the people reporting had IEEE80211_DEBUG on but not INVARIANTS. Sponsored by: The FreeBSD Foundation PR: 286219 #c11 (cherry picked from commit 53c69fd933dc49f69d5603fb27ce51064ebe681e) sys/compat/linuxkpi/common/src/linux_80211.c | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-) -- You are receiving this mail because: You are the assignee for the bug.
