EXT4-fs warning (device sda): verify_group_input:150: Cannot add at group 1025 (only 16 groups)
------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
6.0.0-rc6-next-20220923 #1 Not tainted
------------------------------------------------------
syz-executor.1/5317 is trying to acquire lock:
ffffffff853faaf8 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70
but task is already holding lock:
ffff88800f549420 (&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
futex_wait_queue+0xf5/0x1e0
futex_wait+0x28e/0x690
do_futex+0x2ff/0x380
__x64_sys_futex+0x1c6/0x4d0
do_syscall_64+0x3b/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
do_con_write+0xc05/0x1d50
con_write+0x21/0x40
n_tty_write+0x4d4/0xfe0
file_tty_write.constprop.0+0x49c/0x8f0
vfs_write+0x9c3/0xd90
ksys_write+0x127/0x250
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
schedule+0xda/0x1b0
io_schedule+0xbe/0x130
blk_mq_get_tag+0x563/0xbd0
__blk_mq_alloc_requests+0x615/0xef0
blk_mq_submit_bio+0xa43/0x1bf0
__submit_bio+0x1c7/0x230
submit_bio_noacct_nocheck+0x6c9/0x8a0
submit_bio_noacct+0x824/0x13a0
submit_bio+0x8b/0x1c0
submit_bh_wbc+0x4cc/0x650
write_dirty_buffer+0xc4/0x170
__flush_batch+0x11b/0x2b0
jbd2_log_do_checkpoint+0xa8b/0xf00
jbd2_journal_flush+0x1a2/0xc00
ext4_ioctl_group_add+0x2b3/0x580
__ext4_ioctl+0x6c7/0x4090
__x64_sys_ioctl+0x19a/0x210
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 ***
5 locks held by syz-executor.1/5317:
#0: ffff8880100c6438 (sb_writers#3){.+.+}-{0:0}, at: ext4_ioctl_group_add+0x122/0x580
#1: ffff888010112170 (&journal->j_barrier){+.+.}-{3:3}, at: jbd2_journal_lock_updates+0x15e/0x310
#2: ffff8880101123f8 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: jbd2_journal_flush+0x19a/0xc00
#3: ffff88806ce3d160 (&cpuctx_lock){....}-{2:2}, at: __perf_event_task_sched_in+0x28f/0x6e0
#4: ffff88800f549420 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_in+0x2a0/0x6e0
stack backtrace:
CPU: 0 PID: 5317 Comm: syz-executor.1 Not tainted 6.0.0-rc6-next-20220923 #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 1b 1e f1 ff 65 8b 2d e0 88 ad 7e 31 ff 89 ee e8 bb 1a f1 ff 85 ed 0f 84 ef 00 00 00 e8 fe 1d f1 ff <0f> 0b eb 9f e8 c5 80 23 00 e9 17 fc ff ff e8 eb 1d f1 ff 48 8d 7b
RSP: 0018:ffff88801757eee0 EFLAGS: 00010006
RAX: 0000000040000002 RBX: ffff88801a798000 RCX: 0000000000000000
RDX: ffff88803c728000 RSI: ffffffff8154ecf2 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff865b001b R12: ffff88801a798220
R13: 0000000000000000 R14: ffff88801a7980a8 R15: ffff88801a798220
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
schedule+0xda/0x1b0
io_schedule+0xbe/0x130
blk_mq_get_tag+0x563/0xbd0
__blk_mq_alloc_requests+0x615/0xef0
blk_mq_submit_bio+0xa43/0x1bf0
__submit_bio+0x1c7/0x230
submit_bio_noacct_nocheck+0x6c9/0x8a0
submit_bio_noacct+0x824/0x13a0
submit_bio+0x8b/0x1c0
submit_bh_wbc+0x4cc/0x650
write_dirty_buffer+0xc4/0x170
__flush_batch+0x11b/0x2b0
jbd2_log_do_checkpoint+0xa8b/0xf00
jbd2_journal_flush+0x1a2/0xc00
ext4_ioctl_group_add+0x2b3/0x580
__ext4_ioctl+0x6c7/0x4090
__x64_sys_ioctl+0x19a/0x210
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ffb14d18b19
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:00007ffb1228e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffb14e2bf60 RCX: 00007ffb14d18b19
RDX: 0000000020000040 RSI: 0000000040286608 RDI: 0000000000000006
RBP: 00007ffb14d72f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd3e25703f R14: 00007ffb1228e300 R15: 0000000000022000
WARNING: CPU: 0 PID: 5317 at kernel/events/core.c:2233 event_filter_match+0x422/0x660
Modules linked in:
CPU: 0 PID: 5317 Comm: syz-executor.1 Not tainted 6.0.0-rc6-next-20220923 #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 1b 1e f1 ff 65 8b 2d e0 88 ad 7e 31 ff 89 ee e8 bb 1a f1 ff 85 ed 0f 84 ef 00 00 00 e8 fe 1d f1 ff <0f> 0b eb 9f e8 c5 80 23 00 e9 17 fc ff ff e8 eb 1d f1 ff 48 8d 7b
RSP: 0018:ffff88801757eee0 EFLAGS: 00010006
RAX: 0000000040000002 RBX: ffff88801a798000 RCX: 0000000000000000
RDX: ffff88803c728000 RSI: ffffffff8154ecf2 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff865b001b R12: ffff88801a798220
R13: 0000000000000000 R14: ffff88801a7980a8 R15: ffff88801a798220
FS: 00007ffb1228e700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7b8d2b5718 CR3: 000000004018c000 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
schedule+0xda/0x1b0
io_schedule+0xbe/0x130
blk_mq_get_tag+0x563/0xbd0
__blk_mq_alloc_requests+0x615/0xef0
blk_mq_submit_bio+0xa43/0x1bf0
__submit_bio+0x1c7/0x230
submit_bio_noacct_nocheck+0x6c9/0x8a0
submit_bio_noacct+0x824/0x13a0
submit_bio+0x8b/0x1c0
submit_bh_wbc+0x4cc/0x650
write_dirty_buffer+0xc4/0x170
__flush_batch+0x11b/0x2b0
jbd2_log_do_checkpoint+0xa8b/0xf00
jbd2_journal_flush+0x1a2/0xc00
ext4_ioctl_group_add+0x2b3/0x580
__ext4_ioctl+0x6c7/0x4090
__x64_sys_ioctl+0x19a/0x210
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ffb14d18b19
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:00007ffb1228e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffb14e2bf60 RCX: 00007ffb14d18b19
RDX: 0000000020000040 RSI: 0000000040286608 RDI: 0000000000000006
RBP: 00007ffb14d72f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd3e25703f R14: 00007ffb1228e300 R15: 0000000000022000
irq event stamp: 1526
hardirqs last enabled at (1525): [] mod_delayed_work_on+0x149/0x1e0
hardirqs last disabled at (1526): [] __schedule+0x1225/0x2470
softirqs last enabled at (1478): [] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (1435): [] __irq_exit_rcu+0x11b/0x180
---[ end trace 0000000000000000 ]---
loop7: detected capacity change from 0 to 2048
hrtimer: interrupt took 18034 ns
EXT4-fs warning (device sda): verify_group_input:150: Cannot add at group 1025 (only 16 groups)
device syz_tun entered promiscuous mode
syz-executor.1 (5317) used greatest stack depth: 23264 bytes left
EXT4-fs (loop7): mounted filesystem without journal. Quota mode: none.
EXT4-fs warning (device sda): verify_group_input:150: Cannot add at group 1025 (only 16 groups)
EXT4-fs warning (device sda): verify_group_input:150: Cannot add at group 1025 (only 16 groups)
audit: type=1400 audit(1664328676.526:9): avc: denied { block_suspend } for pid=5355 comm="syz-executor.6" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
loop2: detected capacity change from 0 to 16383
tmpfs: Unknown parameter 'id'
EXT4-fs (loop7): unmounting filesystem.
loop2: detected capacity change from 0 to 16383
tmpfs: Unknown parameter 'id'
EXT4-fs warning (device sda): verify_group_input:150: Cannot add at group 1025 (only 16 groups)
device syz_tun left promiscuous mode
Bluetooth: hci0: command 0x0406 tx timeout
Bluetooth: hci1: command 0x0406 tx timeout
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci7: command 0x0406 tx timeout