syzbot
WARNING in ieee80211_rx_napi
Status:
upstream: reported syz repro on 2020/09/24 04:31
Reported-by: syzbot+f78c3bd6c9e1bafbc879@syzkaller.appspotmail.com
First crash: 2160d, last: 2097d
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Last patch testing requests (4)
Sample crash report:
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
------------[ cut here ]------------
WARNING: CPU: 1 PID: 17 at net/mac80211/rx.c:4321 ieee80211_rx_napi+0x177a/0x1e40 net/mac80211/rx.c:4321
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 17 Comm: ksoftirqd/1 Not tainted 4.14.203-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x1b2/0x283 lib/dump_stack.c:58
panic+0x1f9/0x42d kernel/panic.c:183
__warn.cold+0x20/0x4b kernel/panic.c:547
report_bug+0x208/0x249 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:177 [inline]
fixup_bug arch/x86/kernel/traps.c:172 [inline]
do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static)
RIP: 0010:ieee80211_rx_napi+0x177a/0x1e40 net/mac80211/rx.c:4321
RSP: 0018:ffff8880b54a7be8 EFLAGS: 00010206
RAX: ffff8880b548e480 RBX: 0000000000000000 RCX: 1ffff11016a94f8a
ieee80211 phy17: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static)
RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff88809bd91efc
RBP: ffff88809bd913c0 R08: ffffffff8b9af910 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809bd93260
R13: ffff8880a38b47c0 R14: ffff88809bd91fc0 R15: ffff88809bd919a0
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x4000 vif->addr=02:00:00:00:11:00)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=0 txop=0 cw_min=15 cw_max=1023 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=1 txop=0 cw_min=15 cw_max=1023 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=2 txop=0 cw_min=15 cw_max=1023 aifs=2)
ieee80211 phy17: mac80211_hwsim_conf_tx (queue=3 txop=0 cw_min=15 cw_max=1023 aifs=2)
ieee80211_rx include/net/mac80211.h:4026 [inline]
ieee80211_tasklet_handler+0x90/0xf0 net/mac80211/main.c:228
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x2000 vif->addr=02:00:00:00:11:00)
tasklet_action+0x195/0x340 kernel/softirq.c:513
ieee80211 phy17: mac80211_hwsim_bss_info_changed(changed=0x8bfe vif->addr=02:00:00:00:11:00)
__do_softirq+0x254/0xa1d kernel/softirq.c:288
run_ksoftirqd+0x50/0x1a0 kernel/softirq.c:670
smpboot_thread_fn+0x5c1/0x920 kernel/smpboot.c:164
ieee80211 phy17: mac80211_hwsim_bss_info_changed: BSSID changed: 50:50:50:50:50:50
kthread+0x30d/0x420 kernel/kthread.c:232
ieee80211 phy17: BCN EN: 1 (BI=100)
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
ieee80211 phy17: ERP_CTS_PROT: 0
Kernel Offset: disabled
Rebooting in 86400 seconds..
* Struck through repros no longer work on HEAD.