EXT4-fs (loop2): fragment/cluster size (65536) != block size (4096)
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
6.0.0-rc6-next-20220921 #1 Not tainted
------------------------------------------------------
syz-executor.2/3533 is trying to acquire lock:
ffffffff853faab8 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70
but task is already holding lock:
ffff88800f47a820 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_in+0x2a0/0x6e0
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&ctx->lock){....}-{2:2}:
_raw_spin_lock+0x2a/0x40
__perf_event_task_sched_out+0x53b/0x18d0
__schedule+0xedd/0x2470
schedule+0xda/0x1b0
exit_to_user_mode_prepare+0x114/0x1a0
syscall_exit_to_user_mode+0x19/0x40
do_syscall_64+0x48/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
-> #2 (&rq->__lock){-.-.}-{2:2}:
_raw_spin_lock_nested+0x30/0x40
raw_spin_rq_lock_nested+0x1e/0x30
task_fork_fair+0x63/0x4d0
sched_cgroup_fork+0x3d0/0x540
copy_process+0x4183/0x6e20
kernel_clone+0xe7/0x890
user_mode_thread+0xad/0xf0
rest_init+0x24/0x250
arch_call_rest_init+0xf/0x14
start_kernel+0x4c1/0x4e6
secondary_startup_64_no_verify+0xe0/0xeb
-> #1 (&p->pi_lock){-.-.}-{2:2}:
_raw_spin_lock_irqsave+0x39/0x60
try_to_wake_up+0xab/0x1930
up+0x75/0xb0
__up_console_sem+0x6e/0x80
console_unlock+0x46a/0x590
vt_ioctl+0x2822/0x2ca0
tty_ioctl+0x7c4/0x1700
__x64_sys_ioctl+0x19a/0x210
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
-> #0 ((console_sem).lock){....}-{2:2}:
__lock_acquire+0x2a02/0x5e70
lock_acquire+0x1a2/0x530
_raw_spin_lock_irqsave+0x39/0x60
down_trylock+0xe/0x70
__down_trylock_console_sem+0x3b/0xd0
vprintk_emit+0x16b/0x560
vprintk+0x84/0xa0
_printk+0xba/0xf1
report_bug.cold+0x72/0xab
handle_bug+0x3c/0x70
exc_invalid_op+0x14/0x50
asm_exc_invalid_op+0x16/0x20
event_filter_match+0x422/0x660
merge_sched_in+0x107/0x1110
visit_groups_merge.constprop.0.isra.0+0x4fc/0xef0
ctx_sched_in+0x2e6/0x770
perf_event_sched_in+0x58/0x80
__perf_event_task_sched_in+0x408/0x6e0
finish_task_switch.isra.0+0x46d/0x8a0
__schedule+0x89b/0x2470
preempt_schedule_common+0x45/0xc0
__cond_resched+0x17/0x30
__mutex_lock+0xa3/0x14d0
kernfs_xattr_get+0x25/0xa0
selinux_kernfs_init_security+0xea/0x4c0
security_kernfs_init_security+0x4e/0xb0
__kernfs_new_node+0x57e/0x8c0
kernfs_new_node+0x93/0x120
__kernfs_create_file+0x51/0x350
sysfs_add_file_mode_ns+0x218/0x430
sysfs_merge_group+0x196/0x310
dpm_sysfs_add+0x249/0x290
device_add+0x9ff/0x1ec0
device_create_groups_vargs+0x207/0x280
device_create+0xdc/0x120
mac80211_hwsim_new_radio+0x3a5/0x4c80
hwsim_new_radio_nl+0x9a9/0x1070
genl_family_rcv_msg_doit+0x22d/0x330
genl_rcv_msg+0x3b7/0x630
netlink_rcv_skb+0x14b/0x430
genl_rcv+0x24/0x40
netlink_unicast+0x54e/0x800
netlink_sendmsg+0x915/0xe10
sock_sendmsg+0x154/0x190
____sys_sendmsg+0x744/0x930
___sys_sendmsg+0x110/0x1b0
__sys_sendmsg+0xf3/0x1c0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
other info that might help us debug this:
Chain exists of:
(console_sem).lock --> &rq->__lock --> &ctx->lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ctx->lock);
lock(&rq->__lock);
lock(&ctx->lock);
lock((console_sem).lock);
*** DEADLOCK ***
4 locks held by syz-executor.2/3533:
#0: ffffffff85970490 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40
#1: ffffffff85970548 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x473/0x630
#2: ffff88806ce3d160 (&cpuctx_lock){....}-{2:2}, at: __perf_event_task_sched_in+0x28f/0x6e0
#3: ffff88800f47a820 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_in+0x2a0/0x6e0
stack backtrace:
CPU: 0 PID: 3533 Comm: syz-executor.2 Not tainted 6.0.0-rc6-next-20220921 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
dump_stack_lvl+0x8b/0xb3
check_noncircular+0x263/0x2e0
__lock_acquire+0x2a02/0x5e70
lock_acquire+0x1a2/0x530
_raw_spin_lock_irqsave+0x39/0x60
down_trylock+0xe/0x70
__down_trylock_console_sem+0x3b/0xd0
vprintk_emit+0x16b/0x560
vprintk+0x84/0xa0
_printk+0xba/0xf1
report_bug.cold+0x72/0xab
handle_bug+0x3c/0x70
exc_invalid_op+0x14/0x50
asm_exc_invalid_op+0x16/0x20
RIP: 0010:event_filter_match+0x422/0x660
Code: 00 00 00 e9 7c fc ff ff e8 2b 1b f1 ff 65 8b 2d c0 73 ad 7e 31 ff 89 ee e8 cb 17 f1 ff 85 ed 0f 84 ef 00 00 00 e8 0e 1b f1 ff <0f> 0b eb 9f e8 b5 8b 23 00 e9 17 fc ff ff e8 fb 1a f1 ff 48 8d 7b
RSP: 0018:ffff88803feae6e8 EFLAGS: 00010006
RAX: 0000000040000002 RBX: ffff88803fed0000 RCX: 0000000000000000
RDX: ffff8880206b0000 RSI: ffffffff81550212 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff865b001b R12: ffff88803fed0220
R13: 0000000000000000 R14: ffff88803fed00a8 R15: ffff88803fed0220
merge_sched_in+0x107/0x1110
visit_groups_merge.constprop.0.isra.0+0x4fc/0xef0
ctx_sched_in+0x2e6/0x770
perf_event_sched_in+0x58/0x80
__perf_event_task_sched_in+0x408/0x6e0
finish_task_switch.isra.0+0x46d/0x8a0
__schedule+0x89b/0x2470
preempt_schedule_common+0x45/0xc0
__cond_resched+0x17/0x30
__mutex_lock+0xa3/0x14d0
kernfs_xattr_get+0x25/0xa0
selinux_kernfs_init_security+0xea/0x4c0
security_kernfs_init_security+0x4e/0xb0
__kernfs_new_node+0x57e/0x8c0
kernfs_new_node+0x93/0x120
__kernfs_create_file+0x51/0x350
sysfs_add_file_mode_ns+0x218/0x430
sysfs_merge_group+0x196/0x310
dpm_sysfs_add+0x249/0x290
device_add+0x9ff/0x1ec0
device_create_groups_vargs+0x207/0x280
device_create+0xdc/0x120
mac80211_hwsim_new_radio+0x3a5/0x4c80
hwsim_new_radio_nl+0x9a9/0x1070
genl_family_rcv_msg_doit+0x22d/0x330
genl_rcv_msg+0x3b7/0x630
netlink_rcv_skb+0x14b/0x430
genl_rcv+0x24/0x40
netlink_unicast+0x54e/0x800
netlink_sendmsg+0x915/0xe10
sock_sendmsg+0x154/0x190
____sys_sendmsg+0x744/0x930
___sys_sendmsg+0x110/0x1b0
__sys_sendmsg+0xf3/0x1c0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2c9200bb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2c8f581188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2c9211ef60 RCX: 00007f2c9200bb19
RDX: 0000000000000000 RSI: 0000000020007ec0 RDI: 0000000000000006
RBP: 00007f2c92065f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffe38a00bf R14: 00007f2c8f581300 R15: 0000000000022000
audit: type=1400 audit(1663841201.781:9): avc: denied { create } for pid=3540 comm="syz-executor.5" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1
WARNING: CPU: 0 PID: 3533 at kernel/events/core.c:2233 event_filter_match+0x422/0x660
Modules linked in:
CPU: 0 PID: 3533 Comm: syz-executor.2 Not tainted 6.0.0-rc6-next-20220921 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:event_filter_match+0x422/0x660
Code: 00 00 00 e9 7c fc ff ff e8 2b 1b f1 ff 65 8b 2d c0 73 ad 7e 31 ff 89 ee e8 cb 17 f1 ff 85 ed 0f 84 ef 00 00 00 e8 0e 1b f1 ff <0f> 0b eb 9f e8 b5 8b 23 00 e9 17 fc ff ff e8 fb 1a f1 ff 48 8d 7b
RSP: 0018:ffff88803feae6e8 EFLAGS: 00010006
RAX: 0000000040000002 RBX: ffff88803fed0000 RCX: 0000000000000000
RDX: ffff8880206b0000 RSI: ffffffff81550212 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff865b001b R12: ffff88803fed0220
R13: 0000000000000000 R14: ffff88803fed00a8 R15: ffff88803fed0220
FS: 00007f2c8f581700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f89c8032028 CR3: 00000000205f8000 CR4: 0000000000350ef0
Call Trace:
merge_sched_in+0x107/0x1110
visit_groups_merge.constprop.0.isra.0+0x4fc/0xef0
ctx_sched_in+0x2e6/0x770
perf_event_sched_in+0x58/0x80
__perf_event_task_sched_in+0x408/0x6e0
finish_task_switch.isra.0+0x46d/0x8a0
__schedule+0x89b/0x2470
preempt_schedule_common+0x45/0xc0
__cond_resched+0x17/0x30
__mutex_lock+0xa3/0x14d0
kernfs_xattr_get+0x25/0xa0
selinux_kernfs_init_security+0xea/0x4c0
security_kernfs_init_security+0x4e/0xb0
__kernfs_new_node+0x57e/0x8c0
kernfs_new_node+0x93/0x120
__kernfs_create_file+0x51/0x350
sysfs_add_file_mode_ns+0x218/0x430
sysfs_merge_group+0x196/0x310
dpm_sysfs_add+0x249/0x290
device_add+0x9ff/0x1ec0
device_create_groups_vargs+0x207/0x280
device_create+0xdc/0x120
mac80211_hwsim_new_radio+0x3a5/0x4c80
hwsim_new_radio_nl+0x9a9/0x1070
genl_family_rcv_msg_doit+0x22d/0x330
genl_rcv_msg+0x3b7/0x630
netlink_rcv_skb+0x14b/0x430
genl_rcv+0x24/0x40
netlink_unicast+0x54e/0x800
netlink_sendmsg+0x915/0xe10
sock_sendmsg+0x154/0x190
____sys_sendmsg+0x744/0x930
___sys_sendmsg+0x110/0x1b0
__sys_sendmsg+0xf3/0x1c0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2c9200bb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2c8f581188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2c9211ef60 RCX: 00007f2c9200bb19
RDX: 0000000000000000 RSI: 0000000020007ec0 RDI: 0000000000000006
RBP: 00007f2c92065f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffe38a00bf R14: 00007f2c8f581300 R15: 0000000000022000
irq event stamp: 3378
hardirqs last enabled at (3377): [] _raw_spin_unlock_irqrestore+0x28/0x60
hardirqs last disabled at (3378): [] __schedule+0x1225/0x2470
softirqs last enabled at (3144): [] mac80211_hwsim_new_radio+0x150/0x4c80
softirqs last disabled at (3142): [] mac80211_hwsim_new_radio+0x11d/0x4c80
---[ end trace 0000000000000000 ]---
loop2: detected capacity change from 0 to 16
EXT4-fs (loop2): fragment/cluster size (65536) != block size (4096)
ieee80211 phy2: Selected rate control algorithm 'minstrel_ht'
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
syz-executor.2 (3533) used greatest stack depth: 21216 bytes left
ieee80211 phy3: Selected rate control algorithm 'minstrel_ht'