=============================
[ BUG: Invalid wait context ]
6.12.0-rc5-next-20241104-syzkaller #0 Not tainted
-----------------------------
syz.2.115/6451 is trying to lock:
ffffffff8ea75f18 (stack_list_lock){-.-.}-{3:3}, at: add_stack_record_to_list mm/page_owner.c:182 [inline]
ffffffff8ea75f18 (stack_list_lock){-.-.}-{3:3}, at: inc_stack_record_count mm/page_owner.c:214 [inline]
ffffffff8ea75f18 (stack_list_lock){-.-.}-{3:3}, at: __set_page_owner+0x5cb/0x800 mm/page_owner.c:329
other info that might help us debug this:
context-{2:2}
3 locks held by syz.2.115/6451:
#0: ffff8880782dc6c0 (&sb->s_type->i_mutex_key#33){.+.+}-{4:4}, at: inode_lock_shared include/linux/fs.h:827 [inline]
#0: ffff8880782dc6c0 (&sb->s_type->i_mutex_key#33){.+.+}-{4:4}, at: open_last_lookups fs/namei.c:3734 [inline]
#0: ffff8880782dc6c0 (&sb->s_type->i_mutex_key#33){.+.+}-{4:4}, at: path_openat+0x88b/0x3590 fs/namei.c:3971
#1: ffffffff8e8176a0 (console_lock){+.+.}-{0:0}, at: _printk+0xd5/0x120 kernel/printk/printk.c:2450
#2: ffffffff8e8172b0 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:342 [inline]
#2: ffffffff8e8172b0 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:303 [inline]
#2: ffffffff8e8172b0 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:288 [inline]
#2: ffffffff8e8172b0 (console_srcu){....}-{0:0}, at: console_flush_all+0x1a3/0xeb0 kernel/printk/printk.c:3175
stack backtrace:
CPU: 0 UID: 0 PID: 6451 Comm: syz.2.115 Not tainted 6.12.0-rc5-next-20241104-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_lock_invalid_wait_context kernel/locking/lockdep.c:4826 [inline]
check_wait_context kernel/locking/lockdep.c:4898 [inline]
__lock_acquire+0x15a8/0x2100 kernel/locking/lockdep.c:5176
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 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+0x5cb/0x800 mm/page_owner.c:329
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1541
prep_new_page mm/page_alloc.c:1549 [inline]
get_page_from_freelist+0x3725/0x3870 mm/page_alloc.c:3495
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4771
alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
stack_depot_save_flags+0x666/0x830 lib/stackdepot.c:627
kasan_save_stack+0x4f/0x60 mm/kasan/common.c:48
__kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:544
task_work_add+0xd9/0x490 kernel/task_work.c:77
__run_posix_cpu_timers kernel/time/posix-cpu-timers.c:1219 [inline]
run_posix_cpu_timers+0x6ac/0x810 kernel/time/posix-cpu-timers.c:1418
tick_sched_handle kernel/time/tick-sched.c:276 [inline]
tick_nohz_handler+0x37c/0x500 kernel/time/tick-sched.c:297
__run_hrtimer kernel/time/hrtimer.c:1691 [inline]
__hrtimer_run_queues+0x551/0xd50 kernel/time/hrtimer.c:1755
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0x996/0xeb0
Code: 48 21 c3 0f 85 16 02 00 00 e8 f6 c2 20 00 4c 8b 7c 24 10 4d 85 f6 75 07 e8 e7 c2 20 00 eb 06 e8 e0 c2 20 00 fb 48 8b 5c 24 18 <48> 8b 44 24 30 42 80 3c 28 00 74 08 48 89 df e8 e6 0f 8b 00 4c 8b
RSP: 0018:ffffc900047b6d00 EFLAGS: 00000287
RAX: ffffffff81750440 RBX: ffffffff8f17e2b8 RCX: 0000000000040000
RDX: ffffc9000cbd3000 RSI: 0000000000007709 RDI: 000000000000770a
RBP: ffffc900047b6eb0 R08: ffffffff81750417 R09: 1ffffffff2859b08
R10: dffffc0000000000 R11: fffffbfff2859b09 R12: ffffffff8f17e260
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffc900047b6f00
__console_flush_and_unlock kernel/printk/printk.c:3257 [inline]
console_unlock+0x14f/0x3b0 kernel/printk/printk.c:3297
vprintk_emit+0x730/0xa10 kernel/printk/printk.c:2425
_printk+0xd5/0x120 kernel/printk/printk.c:2450
squashfs_cache_get+0xbcb/0xf80 fs/squashfs/cache.c:164
squashfs_read_metadata+0x10a/0x7e0 fs/squashfs/cache.c:344
squashfs_xattr_lookup+0x19f/0x3a0 fs/squashfs/xattr_id.c:43
squashfs_read_inode+0x1bdb/0x2be0 fs/squashfs/inode.c:403
squashfs_iget+0x7e/0x110 fs/squashfs/inode.c:88
squashfs_lookup+0xc54/0x1020 fs/squashfs/namei.c:206
lookup_open fs/namei.c:3614 [inline]
open_last_lookups fs/namei.c:3735 [inline]
path_openat+0x11a7/0x3590 fs/namei.c:3971
do_filp_open+0x235/0x490 fs/namei.c:4001
do_sys_openat2+0x13e/0x1d0 fs/open.c:1419
do_sys_open fs/open.c:1434 [inline]
__do_sys_openat fs/open.c:1450 [inline]
__se_sys_openat fs/open.c:1445 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1445
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f45cdd7e719
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f45cc1d5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f45cdf36058 RCX: 00007f45cdd7e719
RDX: 0000000000000000 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f45cddf139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f45cdf36058 R15: 00007fff7d973dc8
----------------
Code disassembly (best guess):
0: 48 21 c3 and %rax,%rbx
3: 0f 85 16 02 00 00 jne 0x21f
9: e8 f6 c2 20 00 call 0x20c304
e: 4c 8b 7c 24 10 mov 0x10(%rsp),%r15
13: 4d 85 f6 test %r14,%r14
16: 75 07 jne 0x1f
18: e8 e7 c2 20 00 call 0x20c304
1d: eb 06 jmp 0x25
1f: e8 e0 c2 20 00 call 0x20c304
24: fb sti
25: 48 8b 5c 24 18 mov 0x18(%rsp),%rbx
* 2a: 48 8b 44 24 30 mov 0x30(%rsp),%rax <-- trapping instruction
2f: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1)
34: 74 08 je 0x3e
36: 48 89 df mov %rbx,%rdi
39: e8 e6 0f 8b 00 call 0x8b1024
3e: 4c rex.WR
3f: 8b .byte 0x8b