syzbot


WARNING in __cfg80211_ibss_joined

Status: auto-closed as invalid on 2020/07/02 02:22
Reported-by: syzbot+a37200cd4a9a4d86c52f@syzkaller.appspotmail.com
First crash: 962d, last: 942d
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in __cfg80211_ibss_joined C 12 13d 737d 0/1 upstream: reported C repro on 2020/09/24 13:20
upstream WARNING in __cfg80211_ibss_joined (2) C error 3865 26d 738d 0/24 upstream: reported C repro on 2020/09/24 09:26
linux-4.19 WARNING in __cfg80211_ibss_joined C 199 9d17h 699d 0/1 upstream: reported C repro on 2020/11/01 17:19

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 159 at net/wireless/ibss.c:36 __cfg80211_ibss_joined+0x509/0x5b0 net/wireless/ibss.c:36
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 159 Comm: kworker/u4:3 Not tainted 5.6.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: cfg80211 cfg80211_event_work
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x3e kernel/panic.c:582
 report_bug+0x289/0x300 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 fixup_bug arch/x86/kernel/traps.c:169 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:__cfg80211_ibss_joined+0x509/0x5b0 net/wireless/ibss.c:36
Code: 0f 0b e9 f3 fd ff ff e8 95 a8 3c fa e9 dc fb ff ff e8 4b a8 3c fa e9 18 fc ff ff e8 81 a8 3c fa e9 08 ff ff ff e8 a7 03 fe f9 <0f> 0b e9 19 fc ff ff e8 9b 03 fe f9 0f 0b e8 84 a8 3c fa e9 7e fb
RSP: 0018:ffffc900015e7bb0 EFLAGS: 00010293
RAX: ffff8880a93c4180 RBX: ffff88805d7e0b90 RCX: 0000000000000006
RDX: 0000000000000000 RSI: ffffffff87778a69 RDI: ffff8880a93c4a14
RBP: ffffc900015e7c60 R08: 1ffffffff16a3377 R09: fffffbfff16a3378
R10: fffffbfff16a3377 R11: ffffffff8b519bbf R12: ffff88805d7e0000
R13: 1ffff920002bcf7a R14: ffff888057b68418 R15: 0000000000000000
 cfg80211_process_wdev_events+0x3fe/0x5b0 net/wireless/util.c:885
 cfg80211_process_rdev_events+0x75/0x100 net/wireless/util.c:911
 cfg80211_event_work+0x1e/0x30 net/wireless/core.c:320
 process_one_work+0xa05/0x17a0 kernel/workqueue.c:2264
 worker_thread+0x98/0xe40 kernel/workqueue.c:2410
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (8):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-bpf-kasan-gce 2020/02/22 10:00 bpf 41f57cfde186 2ffa6679 .config log report
ci-upstream-bpf-next-kasan-gce 2020/03/04 02:21 bpf-next 80a836c2506b c88c7b75 .config log report
ci-upstream-bpf-next-kasan-gce 2020/03/03 19:20 bpf-next 80a836c2506b c88c7b75 .config log report
ci-upstream-bpf-next-kasan-gce 2020/03/02 19:58 bpf-next 80a836c2506b c88c7b75 .config log report
ci-upstream-bpf-next-kasan-gce 2020/03/01 18:36 bpf-next 80a836c2506b c88c7b75 .config log report
ci-upstream-bpf-next-kasan-gce 2020/03/01 08:06 bpf-next 80a836c2506b c88c7b75 .config log report
ci-upstream-bpf-next-kasan-gce 2020/02/23 12:59 bpf-next 8eece07c011f 2c36e7a7 .config log report
ci-upstream-bpf-next-kasan-gce 2020/02/13 08:42 bpf-next fdfa3a6778b1 84f4fc8a .config log report
* Struck through repros no longer work on HEAD.