------------[ cut here ]------------
no supported rates (0xffffffff) in rate_mask 0x0 with flags 0x0
WARNING: CPU: 1 PID: 19069 at net/mac80211/rate.c:359 __rate_control_send_low+0x4bb/0x580 net/mac80211/rate.c:359
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 19069 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
panic+0x26a/0x50e kernel/panic.c:186
__warn.cold+0x20/0x5a kernel/panic.c:541
report_bug+0x262/0x2b0 lib/bug.c:183
fixup_bug arch/x86/kernel/traps.c:178 [inline]
fixup_bug arch/x86/kernel/traps.c:173 [inline]
do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:__rate_control_send_low+0x4bb/0x580 net/mac80211/rate.c:359
Code: 0f 85 d6 00 00 00 48 8b 44 24 18 44 8b 24 a8 e8 9b 42 c6 f9 8b 54 24 24 44 89 e9 44 89 e6 48 c7 c7 80 98 67 89 e8 6a 7a 56 00 <0f> 0b e9 03 fe ff ff e8 79 42 c6 f9 41 83 cd 10 e9 32 fc ff ff e8
RSP: 0018:ffff8880ba107a70 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff8880aa070168 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff814dff01 RDI: ffffed1017420f40
RBP: ffff888053683308 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 00000000ffffffff
R13: 0000000000000000 R14: 000000000000000c R15: 0000000000000000
rate_control_send_low+0x272/0x610 net/mac80211/rate.c:383
minstrel_ht_get_rate+0x58/0x1510 net/mac80211/rc80211_minstrel_ht.c:1045
rate_control_get_rate+0x43c/0x520 net/mac80211/rate.c:910
__ieee80211_beacon_get+0x93b/0x1a30 net/mac80211/tx.c:4436
ieee80211_beacon_get_tim+0x88/0x890 net/mac80211/tx.c:4463
ieee80211_beacon_get include/net/mac80211.h:4484 [inline]
mac80211_hwsim_beacon_tx+0xff/0x680 drivers/net/wireless/mac80211_hwsim.c:1577
__iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614
ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650
mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615
__tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601
tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:31 [inline]
RIP: 0010:atomic_read include/asm-generic/atomic-instrumented.h:22 [inline]
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:350 [inline]
RIP: 0010:rcu_is_watching+0x68/0xc0 kernel/rcu/tree.c:1025
Code: 00 af cf 89 be 04 00 00 00 48 8d 6b 10 48 89 ef e8 5d c2 46 00 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 <48> 89 e8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 24 8b 43 10 d1 e8
RSP: 0018:ffff88808eff7a88 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13
RAX: dffffc0000000000 RBX: ffff8880ba122ac0 RCX: ffffffff81518c83
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880ba122ad0
RBP: ffff8880ba122ad0 R08: 0000000000000000 R09: ffffed101742455a
R10: ffff8880ba122ad3 R11: 0000000000000000 R12: ffff88808b93ce70
R13: 000000000000038d R14: 0000000000001000 R15: ffff88808b93ce70
rcu_read_lock_sched_held+0xc6/0x1d0 kernel/rcu/update.c:113
trace_block_touch_buffer include/trace/events/block.h:45 [inline]
touch_buffer fs/buffer.c:58 [inline]
__find_get_block+0xaf6/0xde0 fs/buffer.c:1299
sb_find_get_block include/linux/buffer_head.h:346 [inline]
recently_deleted fs/ext4/ialloc.c:684 [inline]
find_inode_bit+0x213/0x520 fs/ext4/ialloc.c:724
__ext4_new_inode+0x160c/0x5a20 fs/ext4/ialloc.c:916
ext4_symlink+0x3f5/0xc00 fs/ext4/namei.c:3176
vfs_symlink+0x453/0x6c0 fs/namei.c:4129
do_symlinkat+0x258/0x2c0 fs/namei.c:4156
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f1726047a37
Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe3176e498 EFLAGS: 00000202 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1726047a37
RDX: 00007f17260a3bab RSI: 00000000ffffff9c RDI: 00007ffe3176e560
RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffe3176e330
R10: 00007ffe3176e1e7 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffe3176e560
Kernel Offset: disabled
================================
WARNING: inconsistent lock state
4.19.211-syzkaller #0 Not tainted
--------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-R} usage.
syz-executor.2/19069 [HC0[0]:SC1[1]:HE0:SE0] takes:
00000000333fb6ab ((fb_notifier_list).rwsem){+++?}, at: __blocking_notifier_call_chain kernel/notifier.c:316 [inline]
00000000333fb6ab ((fb_notifier_list).rwsem){+++?}, at: __blocking_notifier_call_chain kernel/notifier.c:304 [inline]
00000000333fb6ab ((fb_notifier_list).rwsem){+++?}, at: blocking_notifier_call_chain kernel/notifier.c:328 [inline]
00000000333fb6ab ((fb_notifier_list).rwsem){+++?}, at: blocking_notifier_call_chain+0x6f/0xa0 kernel/notifier.c:325
{SOFTIRQ-ON-W} state was registered at:
down_write+0x34/0x90 kernel/locking/rwsem.c:70
blocking_notifier_chain_register+0x78/0x350 kernel/notifier.c:226
fb_console_init+0x1c/0x305 drivers/video/fbdev/core/fbcon.c:3432
fbmem_init+0x105/0x126 drivers/video/fbdev/core/fbmem.c:1932
do_one_initcall+0xf1/0x740 init/main.c:884
do_initcall_level init/main.c:952 [inline]
do_initcalls init/main.c:960 [inline]
do_basic_setup init/main.c:978 [inline]
kernel_init_freeable+0x9c5/0xab7 init/main.c:1145
kernel_init+0xd/0x1ba init/main.c:1062
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
irq event stamp: 3185
hardirqs last enabled at (3184): [] console_unlock+0xdf5/0x1110 kernel/printk/printk.c:2489
hardirqs last disabled at (3185): [] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last enabled at (880): [] __do_softirq+0x678/0x980 kernel/softirq.c:318
softirqs last disabled at (3155): [] invoke_softirq kernel/softirq.c:372 [inline]
softirqs last disabled at (3155): [] irq_exit+0x215/0x260 kernel/softirq.c:412
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock((fb_notifier_list).rwsem);
lock((fb_notifier_list).rwsem);
*** DEADLOCK ***
4 locks held by syz-executor.2/19069:
#0: 0000000079de9b0c (sb_writers#3){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline]
#0: 0000000079de9b0c (sb_writers#3){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360
#1: 00000000d08034ac (&type->i_mutex_dir_key#3/1){+.+.}, at: inode_lock_nested include/linux/fs.h:783 [inline]
#1: 00000000d08034ac (&type->i_mutex_dir_key#3/1){+.+.}, at: filename_create+0x15a/0x490 fs/namei.c:3638
#2: 000000008687ba3c (rcu_read_lock){....}, at: ieee80211_iterate_active_interfaces_atomic+0x0/0x170 net/mac80211/util.c:637
#3: 000000008687ba3c (rcu_read_lock){....}, at: __ieee80211_beacon_get+0x0/0x1a30 include/linux/compiler.h:263
stack backtrace:
CPU: 1 PID: 19069 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
print_usage_bug.cold+0x42e/0x570 kernel/locking/lockdep.c:2545
valid_state kernel/locking/lockdep.c:2558 [inline]
mark_lock_irq kernel/locking/lockdep.c:2752 [inline]
mark_lock+0xc70/0x1160 kernel/locking/lockdep.c:3132
mark_irqflags kernel/locking/lockdep.c:3002 [inline]
__lock_acquire+0x10ed/0x3ff0 kernel/locking/lockdep.c:3373
lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908
down_read+0x36/0x80 kernel/locking/rwsem.c:24
__blocking_notifier_call_chain kernel/notifier.c:316 [inline]
__blocking_notifier_call_chain kernel/notifier.c:304 [inline]
blocking_notifier_call_chain kernel/notifier.c:328 [inline]
blocking_notifier_call_chain+0x6f/0xa0 kernel/notifier.c:325
fb_blank+0xb5/0x1d0 drivers/video/fbdev/core/fbmem.c:1074
fbcon_blank+0x932/0xec0 drivers/video/fbdev/core/fbcon.c:2221
do_unblank_screen+0x241/0x610 drivers/tty/vt/vt.c:4294
panic+0x313/0x50e kernel/panic.c:239
__warn.cold+0x20/0x5a kernel/panic.c:541
report_bug+0x262/0x2b0 lib/bug.c:183
fixup_bug arch/x86/kernel/traps.c:178 [inline]
fixup_bug arch/x86/kernel/traps.c:173 [inline]
do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:__rate_control_send_low+0x4bb/0x580 net/mac80211/rate.c:359
Code: 0f 85 d6 00 00 00 48 8b 44 24 18 44 8b 24 a8 e8 9b 42 c6 f9 8b 54 24 24 44 89 e9 44 89 e6 48 c7 c7 80 98 67 89 e8 6a 7a 56 00 <0f> 0b e9 03 fe ff ff e8 79 42 c6 f9 41 83 cd 10 e9 32 fc ff ff e8
RSP: 0018:ffff8880ba107a70 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff8880aa070168 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffffffff814dff01 RDI: ffffed1017420f40
RBP: ffff888053683308 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 00000000ffffffff
R13: 0000000000000000 R14: 000000000000000c R15: 0000000000000000
rate_control_send_low+0x272/0x610 net/mac80211/rate.c:383
minstrel_ht_get_rate+0x58/0x1510 net/mac80211/rc80211_minstrel_ht.c:1045
rate_control_get_rate+0x43c/0x520 net/mac80211/rate.c:910
__ieee80211_beacon_get+0x93b/0x1a30 net/mac80211/tx.c:4436
ieee80211_beacon_get_tim+0x88/0x890 net/mac80211/tx.c:4463
ieee80211_beacon_get include/net/mac80211.h:4484 [inline]
mac80211_hwsim_beacon_tx+0xff/0x680 drivers/net/wireless/mac80211_hwsim.c:1577
__iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614
ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650
mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615
__tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601
tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:31 [inline]
RIP: 0010:atomic_read include/asm-generic/atomic-instrumented.h:22 [inline]
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:350 [inline]
RIP: 0010:rcu_is_watching+0x68/0xc0 kernel/rcu/tree.c:1025
Code: 00 af cf 89 be 04 00 00 00 48 8d 6b 10 48 89 ef e8 5d c2 46 00 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 <48> 89 e8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 24 8b 43 10 d1 e8
RSP: 0018:ffff88808eff7a88 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13
RAX: dffffc0000000000 RBX: ffff8880ba122ac0 RCX: ffffffff81518c83
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880ba122ad0
RBP: ffff8880ba122ad0 R08: 0000000000000000 R09: ffffed101742455a
R10: ffff8880ba122ad3 R11: 0000000000000000 R12: ffff88808b93ce70
R13: 000000000000038d R14: 0000000000001000 R15: ffff88808b93ce70
rcu_read_lock_sched_held+0xc6/0x1d0 kernel/rcu/update.c:113
trace_block_touch_buffer include/trace/events/block.h:45 [inline]
touch_buffer fs/buffer.c:58 [inline]
__find_get_block+0xaf6/0xde0 fs/buffer.c:1299
sb_find_get_block include/linux/buffer_head.h:346 [inline]
recently_deleted fs/ext4/ialloc.c:684 [inline]
find_inode_bit+0x213/0x520 fs/ext4/ialloc.c:724
__ext4_new_inode+0x160c/0x5a20 fs/ext4/ialloc.c:916
ext4_symlink+0x3f5/0xc00 fs/ext4/namei.c:3176
vfs_symlink+0x453/0x6c0 fs/namei.c:4129
do_symlinkat+0x258/0x2c0 fs/namei.c:4156
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f1726047a37
Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe3176e498 EFLAGS: 00000202 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1726047a37
RDX: 00007f17260a3bab RSI: 00000000ffffff9c RDI: 00007ffe3176e560
RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffe3176e330
R10: 00007ffe3176e1e7 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffe3176e560
Rebooting in 86400 seconds..
----------------
Code disassembly (best guess):
0: 00 af cf 89 be 04 add %ch,0x4be89cf(%rdi)
6: 00 00 add %al,(%rax)
8: 00 48 8d add %cl,-0x73(%rax)
b: 6b 10 48 imul $0x48,(%rax),%edx
e: 89 ef mov %ebp,%edi
10: e8 5d c2 46 00 callq 0x46c272
15: 48 89 ea mov %rbp,%rdx
18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1f: fc ff df
22: 48 c1 ea 03 shr $0x3,%rdx
26: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx
* 2a: 48 89 e8 mov %rbp,%rax <-- trapping instruction
2d: 83 e0 07 and $0x7,%eax
30: 83 c0 03 add $0x3,%eax
33: 38 d0 cmp %dl,%al
35: 7c 04 jl 0x3b
37: 84 d2 test %dl,%dl
39: 75 24 jne 0x5f
3b: 8b 43 10 mov 0x10(%rbx),%eax
3e: d1 e8 shr %eax