=============================
[ BUG: Invalid wait context ]
6.13.0-syzkaller-07632-gaa22f4da2a46 #0 Not tainted
-----------------------------
syz.3.47/6154 is trying to lock:
ffffffff8e3a7e78 (stack_list_lock){-.-.}-{3:3}, at: add_stack_record_to_list mm/page_owner.c:182 [inline]
ffffffff8e3a7e78 (stack_list_lock){-.-.}-{3:3}, at: inc_stack_record_count mm/page_owner.c:214 [inline]
ffffffff8e3a7e78 (stack_list_lock){-.-.}-{3:3}, at: __set_page_owner+0x3ea/0x560 mm/page_owner.c:329
other info that might help us debug this:
context-{2:2}
4 locks held by syz.3.47/6154:
#0: ffffffff8ee88468 (tty_mutex){+.+.}-{4:4}, at: tty_open_by_driver drivers/tty/tty_io.c:2046 [inline]
#0: ffffffff8ee88468 (tty_mutex){+.+.}-{4:4}, at: tty_open+0x53d/0xf80 drivers/tty/tty_io.c:2129
#1: ffff88804fb1f1c0 (&tty->legacy_mutex){+.+.}-{4:4}, at: tty_init_dev.part.0+0x37/0x660 drivers/tty/tty_io.c:1415
#2: ffffffff8e1ab8a0 (console_lock){+.+.}-{0:0}, at: con_install+0x9a/0x600 drivers/tty/vt/vt.c:3517
#3: ffffffff8e1be140 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#3: ffffffff8e1be140 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#3: ffffffff8e1be140 (rcu_read_lock){....}-{1:3}, at: page_ext_get+0x34/0x310 mm/page_ext.c:525
stack backtrace:
CPU: 1 UID: 0 PID: 6154 Comm: syz.3.47 Not tainted 6.13.0-syzkaller-07632-gaa22f4da2a46 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_lock_invalid_wait_context kernel/locking/lockdep.c:4828 [inline]
check_wait_context kernel/locking/lockdep.c:4900 [inline]
__lock_acquire+0x878/0x3c40 kernel/locking/lockdep.c:5178
lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5851
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
add_stack_record_to_list mm/page_owner.c:182 [inline]
inc_stack_record_count mm/page_owner.c:214 [inline]
__set_page_owner+0x3ea/0x560 mm/page_owner.c:329
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
prep_new_page mm/page_alloc.c:1566 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
__alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
stack_depot_save_flags+0x8aa/0x9c0 lib/stackdepot.c:627
kasan_save_stack+0x42/0x60 mm/kasan/common.c:48
__kasan_record_aux_stack+0xba/0xd0 mm/kasan/generic.c:544
task_work_add+0xc0/0x3b0 kernel/task_work.c:77
__run_posix_cpu_timers kernel/time/posix-cpu-timers.c:1223 [inline]
run_posix_cpu_timers+0x69f/0x7d0 kernel/time/posix-cpu-timers.c:1422
update_process_times+0x1a1/0x2d0 kernel/time/timer.c:2522
tick_sched_handle kernel/time/tick-sched.c:276 [inline]
tick_nohz_handler+0x376/0x530 kernel/time/tick-sched.c:297
__run_hrtimer kernel/time/hrtimer.c:1738 [inline]
__hrtimer_run_queues+0x5fb/0xae0 kernel/time/hrtimer.c:1802
hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1864
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_pc+0x66/0x70 kernel/kcov.c:235
Code: 82 f8 15 00 00 83 f8 02 75 20 48 8b 8a 00 16 00 00 8b 92 fc 15 00 00 48 8b 01 48 83 c0 01 48 39 d0 73 07 48 89 01 48 89 34 c1 cc cc cc cc 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900041d6890 EFLAGS: 00000287
RAX: 0000000000002e90 RBX: 0000000000000002 RCX: ffffc9000c001000
RDX: 0000000000080000 RSI: ffffffff822626a4 RDI: ffff88801d99cd00
RBP: ffff88801d99cd00 R08: 00000000ffffffff R09: 0000000b25b4379e
R10: 0000000000000000 R11: 0000000000000003 R12: ffff88801d99cd00
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000002
__update_page_owner_handle+0x54/0x320 mm/page_owner.c:242
__set_page_owner+0x13f/0x560 mm/page_owner.c:325
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
prep_new_page mm/page_alloc.c:1566 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
__alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
stack_depot_save_flags+0x8aa/0x9c0 lib/stackdepot.c:627
kasan_save_stack+0x42/0x60 mm/kasan/common.c:48
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:319 [inline]
__kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:345
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4119 [inline]
slab_alloc_node mm/slub.c:4168 [inline]
kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
__kernfs_new_node+0xd3/0x890 fs/kernfs/dir.c:624
kernfs_new_node+0x186/0x240 fs/kernfs/dir.c:700
__kernfs_create_file+0x53/0x350 fs/kernfs/file.c:1034
sysfs_add_file_mode_ns+0x1ff/0x3b0 fs/sysfs/file.c:313
sysfs_create_file_ns+0x13e/0x1d0 fs/sysfs/file.c:380
sysfs_create_file include/linux/sysfs.h:788 [inline]
device_create_file+0xf2/0x1e0 drivers/base/core.c:3031
device_add+0x2c0/0x1a70 drivers/base/core.c:3612
device_create_groups_vargs+0x1f8/0x270 drivers/base/core.c:4392
device_create+0xe9/0x130 drivers/base/core.c:4431
vcs_make_sysfs+0x55/0x80 drivers/tty/vt/vc_screen.c:796
vc_allocate+0x502/0x880 drivers/tty/vt/vt.c:1094
con_install+0xa2/0x600 drivers/tty/vt/vt.c:3518
tty_driver_install_tty drivers/tty/tty_io.c:1304 [inline]
tty_init_dev.part.0+0x99/0x660 drivers/tty/tty_io.c:1416
tty_init_dev include/linux/err.h:67 [inline]
tty_open_by_driver drivers/tty/tty_io.c:2082 [inline]
tty_open+0xac1/0xf80 drivers/tty/tty_io.c:2129
chrdev_open+0x237/0x6a0 fs/char_dev.c:414
do_dentry_open+0x735/0x1c40 fs/open.c:955
vfs_open+0x82/0x3f0 fs/open.c:1085
do_open fs/namei.c:3828 [inline]
path_openat+0x1e88/0x2d80 fs/namei.c:3987
do_filp_open+0x20c/0x470 fs/namei.c:4014
do_sys_openat2+0x17a/0x1e0 fs/open.c:1427
do_sys_open fs/open.c:1442 [inline]
__do_sys_openat fs/open.c:1458 [inline]
__se_sys_openat fs/open.c:1453 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1453
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fddd1b8b690
Code: 48 89 44 24 20 75 93 44 89 54 24 0c e8 49 94 02 00 44 8b 54 24 0c 89 da 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 89 44 24 0c e8 9c 94 02 00 8b 44
RSP: 002b:00007fddd296db70 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fddd1b8b690
RDX: 0000000000000002 RSI: 00007fddd296dc10 RDI: 00000000ffffff9c
RBP: 00007fddd296dc10 R08: 0000000000000000 R09: 00007fddd296d986
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fddd1da5fa0 R15: 00007ffd8ab464e8
----------------
Code disassembly (best guess), 1 bytes skipped:
0: f8 clc
1: 15 00 00 83 f8 adc $0xf8830000,%eax
6: 02 75 20 add 0x20(%rbp),%dh
9: 48 8b 8a 00 16 00 00 mov 0x1600(%rdx),%rcx
10: 8b 92 fc 15 00 00 mov 0x15fc(%rdx),%edx
16: 48 8b 01 mov (%rcx),%rax
19: 48 83 c0 01 add $0x1,%rax
1d: 48 39 d0 cmp %rdx,%rax
20: 73 07 jae 0x29
22: 48 89 01 mov %rax,(%rcx)
25: 48 89 34 c1 mov %rsi,(%rcx,%rax,8)
* 29: c3 ret <-- trapping instruction
2a: cc int3
2b: cc int3
2c: cc int3
2d: cc int3
2e: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
33: 90 nop
34: 90 nop
35: 90 nop
36: 90 nop
37: 90 nop
38: 90 nop
39: 90 nop
3a: 90 nop
3b: 90 nop
3c: 90 nop
3d: 90 nop
3e: 90 nop