syzbot


WARNING in on (2)

Status: upstream: reported on 2025/02/05 04:44
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+1940948c36d6e4d83406@syzkaller.appspotmail.com
First crash: 55d, last: 37d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [wireless?] WARNING in on (2) 0 (1) 2025/02/05 04:44
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in on wireless 1 158d 154d 0/28 auto-obsoleted due to no activity on 2025/01/29 06:59

Sample crash report:
Feb 19 15:19:33 syzkaller daemon.err dhcpcd[5655]: libudev: received NULL device
Feb 19 15:19:33 syzkaller daemon.err dhcpcd[5655]: libudev: received NULL device
Feb 19 15:19:33 syzkaller daemon.err dhcpcd[5655]: libudev: received NULL device
Feb 19 15:19:33 syzkaller daemon.err dhcpcd[5655]: libudev: received NULL device
Feb 19 15:19:33 syzkalle[   98.905302][    C1] ------------[ cut here ]------------
r daemon.err dhc[   98.907625][    C1] WARNING: CPU: 1 PID: 0 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline]
r daemon.err dhc[   98.907625][    C1] WARNING: CPU: 1 PID: 0 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5035 [inline]
r daemon.err dhc[   98.907625][    C1] WARNING: CPU: 1 PID: 0 at net/mac80211/tx.c:5040 __ieee80211_beacon_get+0x14ac/0x16b0 net/mac80211/tx.c:5469
pcd[5655]: libud[   98.913159][    C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.14.0-rc3-syzkaller-00060-g6537cfb395f3 #0
ev: received NUL[   98.917251][    C1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
L device
Feb 19[   98.924161][    C1] Code: 00 89 df 44 89 e6 e8 a3 25 e1 f6 44 38 e3 72 a1 e8 b9 2b e1 f6 48 89 ef e8 d1 97 39 f7 31 ed e9 9c fe ff ff e8 a5 2b e1 f6 90 <0f> 0b 90 e9 86 f6 ff ff 48 89 c6 48 c7 c7 a0 d4 2f 90 48 89 04 24
 15:19:33 syzkaller daemon.err d[   98.924180][    C1] RSP: 0018:ffffc900006b0b70 EFLAGS: 00010246
hcpcd[5655]: lib[   98.924219][    C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8ad8a9c2
udev: received N[   98.924240][    C1] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804d63d400
ULL device
Feb [   98.924255][    C1] FS:  0000000000000000(0000) GS:ffff88806a700000(0000) knlGS:0000000000000000
19 15:19:33 syzk[   98.951524][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
aller daemon.err[   98.954452][    C1] CR2: 000055637c648300 CR3: 000000002274e000 CR4: 0000000000352ef0
 dhcpcd[5655]: l[   98.957711][    C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
ibudev: received[   98.961084][    C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 NULL device
Fe[   98.961095][    C1] Call Trace:
b 19 15:19:33 sy[   98.961108][    C1]  ? __warn+0xea/0x3c0 kernel/panic.c:746
zkaller daemon.e[   98.961127][    C1]  ? __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline]
zkaller daemon.e[   98.961127][    C1]  ? __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5035 [inline]
zkaller daemon.e[   98.961127][    C1]  ? __ieee80211_beacon_get+0x14ac/0x16b0 net/mac80211/tx.c:5469
rr dhcpcd[5655]:[   98.972709][    C1]  ? handle_bug+0x54/0xa0 arch/x86/kernel/traps.c:285
 libudev: receiv[   98.974689][    C1]  ? exc_invalid_op+0x17/0x50 arch/x86/kernel/traps.c:309
ed NULL device
Feb 19 15:19:33 [   98.978792][    C1]  ? __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline]
Feb 19 15:19:33 [   98.978792][    C1]  ? __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5035 [inline]
Feb 19 15:19:33 [   98.978792][    C1]  ? __ieee80211_beacon_get+0x14ab/0x16b0 net/mac80211/tx.c:5469
syzkaller daemon[   98.978813][    C1]  ? __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline]
syzkaller daemon[   98.978813][    C1]  ? __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5035 [inline]
syzkaller daemon[   98.978813][    C1]  ? __ieee80211_beacon_get+0x14ac/0x16b0 net/mac80211/tx.c:5469
.err dhcpcd[5655[   98.986059][    C1]  ieee80211_beacon_get_tim+0xa7/0x280 net/mac80211/tx.c:5596
]: libudev: rece[   98.990752][    C1]  ieee80211_beacon_get include/net/mac80211.h:5641 [inline]
]: libudev: rece[   98.990752][    C1]  mac80211_hwsim_beacon_tx+0x4ea/0xa10 drivers/net/wireless/virtual/mac80211_hwsim.c:2311
ived NULL device[   98.993225][    C1]  ? __pfx_lock_acquire.part.0+0x10/0x10 kernel/locking/lockdep.c:122

Feb 19 15:19:3[   98.995743][    C1]  ? rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
Feb 19 15:19:3[   98.995743][    C1]  ? rcu_is_watching+0x12/0xc0 kernel/rcu/tree.c:716
3 syzkaller daem[   98.997991][    C1]  __iterate_interfaces+0x2e5/0x640 net/mac80211/util.c:760
on.err dhcpcd[56[   98.998011][    C1]  ? __pfx_mac80211_hwsim_beacon_tx+0x10/0x10 drivers/net/wireless/virtual/mac80211_hwsim.c:2254
55]: libudev: re[   98.998060][    C1]  ? __pfx_mac80211_hwsim_beacon_tx+0x10/0x10 drivers/net/wireless/virtual/mac80211_hwsim.c:2254
ceived NULL devi[   99.005641][    C1]  ? __pfx_mac80211_hwsim_beacon+0x10/0x10 drivers/net/wireless/virtual/mac80211_hwsim.c:3161
ce
Feb 19 15:19[   99.010730][    C1]  mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2345
:33 syzkaller da[   99.013145][    C1]  __run_hrtimer kernel/time/hrtimer.c:1801 [inline]
:33 syzkaller da[   99.013145][    C1]  __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1865
emon.err dhcpcd[[   99.017618][    C1]  ? rdtsc_ordered arch/x86/include/asm/msr.h:217 [inline]
emon.err dhcpcd[[   99.017618][    C1]  ? read_tsc+0x9/0x20 arch/x86/kernel/tsc.c:1133
5655]: libudev: [   99.017644][    C1]  hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1882
received NULL de[   99.017664][    C1]  handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
vice
Feb 19 15:[   99.017695][    C1]  ? __pfx_handle_softirqs+0x10/0x10 include/trace/events/irq.h:156
19:33 syzkaller [   99.029332][    C1]  instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
19:33 syzkaller [   99.029332][    C1]  sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049
daemon.err dhcpc[   99.029357][    C1]  </IRQ>
d[5655]: libudev[   99.029372][    C1]  asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
: received NULL [   99.038467][    C1] Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d d3 6f 0f 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
device
Feb 19 1[   99.045817][    C1] RSP: 0018:ffffc90000187e08 EFLAGS: 00000206
5:19:33 syzkalle[   99.051316][    C1] RDX: 0000000000000000 RSI: ffffffff8b6ceca0 RDI: ffffffff8bd35480
r daemon.err dhc[   99.054675][    C1] RBP: ffffed1003a5b910 R08: 0000000000000001 R09: ffffed100d4e6f85
pcd[5655]: libud[   99.063730][    C1]  ? instrument_atomic_write include/linux/instrumented.h:82 [inline]
pcd[5655]: libud[   99.063730][    C1]  ? ct_kernel_exit+0x139/0x190 kernel/context_tracking.c:145
ev: received NUL[   99.063753][    C1]  default_idle_call+0x6d/0xb0 kernel/sched/idle.c:117
L device
Feb 19[   99.063767][    C1]  cpuidle_idle_call kernel/sched/idle.c:185 [inline]
Feb 19[   99.063767][    C1]  do_idle+0x329/0x3f0 kernel/sched/idle.c:325
 15:19:33 syzkal[   99.071354][    C1]  cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:423
ler daemon.err d[   99.073597][    C1]  start_secondary+0x222/0x2b0 arch/x86/kernel/smpboot.c:315
hcpcd[5655]: lib[   99.077774][    C1]  common_startup_64+0x13e/0x148

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/19 15:19 upstream 6537cfb395f3 cbd8edab .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in on
2025/02/01 04:41 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in on
* Struck through repros no longer work on HEAD.