From: syzbot <syzbot+76f802bc1dee8ba28a6e@syzkaller.appspotmail.com>
To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, syzkaller-bugs@googlegroups.com
Subject: [syzbot] [mm?] inconsistent lock state in __mmap_lock_do_trace_acquire_returned
Date: Wed, 03 Apr 2024 17:21:24 -0700 [thread overview]
Message-ID: <000000000000c98e7d06153a5177@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: fe46a7dd189e Merge tag 'sound-6.9-rc1' of git://git.kernel..
git tree: upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=132e732d180000
kernel config: https://syzkaller.appspot.com/x/.config?x=aef2a55903e5791c
dashboard link: https://syzkaller.appspot.com/bug?extid=76f802bc1dee8ba28a6e
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16d61b76180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=166ee109180000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/089e25869df5/disk-fe46a7dd.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/423b1787914f/vmlinux-fe46a7dd.xz
kernel image: https://storage.googleapis.com/syzbot-assets/4c043e30c07d/bzImage-fe46a7dd.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+76f802bc1dee8ba28a6e@syzkaller.appspotmail.com
================================
WARNING: inconsistent lock state
6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted
--------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
syz-executor244/5087 [HC0[0]:SC1[1]:HE0:SE0] takes:
ffff8880b9538780 (lock#9){+.?.}-{2:2}, at: local_lock_acquire include/linux/local_lock_internal.h:29 [inline]
ffff8880b9538780 (lock#9){+.?.}-{2:2}, at: __mmap_lock_do_trace_acquire_returned+0x7f/0x760 mm/mmap_lock.c:237
{SOFTIRQ-ON-W} state was registered at:
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
local_lock_acquire include/linux/local_lock_internal.h:29 [inline]
__mmap_lock_do_trace_acquire_returned+0x97/0x760 mm/mmap_lock.c:237
__mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]
mmap_read_lock include/linux/mmap_lock.h:147 [inline]
process_vm_rw_single_vec mm/process_vm_access.c:105 [inline]
process_vm_rw_core.constprop.0+0x7d7/0xa10 mm/process_vm_access.c:216
process_vm_rw+0x301/0x360 mm/process_vm_access.c:284
__do_sys_process_vm_readv mm/process_vm_access.c:296 [inline]
__se_sys_process_vm_readv mm/process_vm_access.c:292 [inline]
__x64_sys_process_vm_readv+0xe2/0x1c0 mm/process_vm_access.c:292
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
irq event stamp: 997
hardirqs last enabled at (996): [<ffffffff8ad62d96>] __do_softirq+0x1d6/0x8de kernel/softirq.c:538
hardirqs last disabled at (997): [<ffffffff8ad5ff95>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline]
hardirqs last disabled at (997): [<ffffffff8ad5ff95>] _raw_spin_lock_irq+0x45/0x50 kernel/locking/spinlock.c:170
softirqs last enabled at (896): [<ffffffff819e467f>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last enabled at (896): [<ffffffff819e467f>] bpf_link_settle kernel/bpf/syscall.c:3181 [inline]
softirqs last enabled at (896): [<ffffffff819e467f>] bpf_raw_tp_link_attach+0x35f/0x610 kernel/bpf/syscall.c:3842
softirqs last disabled at (995): [<ffffffff8151a149>] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last disabled at (995): [<ffffffff8151a149>] __irq_exit_rcu kernel/softirq.c:633 [inline]
softirqs last disabled at (995): [<ffffffff8151a149>] irq_exit_rcu+0xb9/0x120 kernel/softirq.c:645
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(lock#9);
<Interrupt>
lock(lock#9);
*** DEADLOCK ***
6 locks held by syz-executor244/5087:
#0: ffff88802247b1e8 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_cleanup_begin kernel/futex/core.c:1091 [inline]
#0: ffff88802247b1e8 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_exit_release+0x2a/0x220 kernel/futex/core.c:1143
#1: ffffc90000a08cb0 (&(&ipvs->defense_work)->timer){..-.}-{0:0}, at: call_timer_fn+0x11a/0x5b0 kernel/time/timer.c:1789
#2: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#2: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#2: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: __queue_work+0xf2/0x1170 kernel/workqueue.c:2324
#3: ffff8880b953d5d8 (&pool->lock){-.-.}-{2:2}, at: __queue_work+0x39e/0x1170 kernel/workqueue.c:2360
#4: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#4: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#4: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline]
#4: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run3+0xf8/0x440 kernel/trace/bpf_trace.c:2421
#5: ffff88807965b120 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:165 [inline]
#5: ffff88807965b120 (&mm->mmap_lock){++++}-{3:3}, at: stack_map_get_build_id_offset+0x1e8/0x7d0 kernel/bpf/stackmap.c:141
stack backtrace:
CPU: 1 PID: 5087 Comm: syz-executor244 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
print_usage_bug kernel/locking/lockdep.c:3971 [inline]
valid_state kernel/locking/lockdep.c:4013 [inline]
mark_lock_irq kernel/locking/lockdep.c:4216 [inline]
mark_lock+0x923/0xc60 kernel/locking/lockdep.c:4678
mark_usage kernel/locking/lockdep.c:4567 [inline]
__lock_acquire+0x13d4/0x3b30 kernel/locking/lockdep.c:5091
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
local_lock_acquire include/linux/local_lock_internal.h:29 [inline]
__mmap_lock_do_trace_acquire_returned+0x97/0x760 mm/mmap_lock.c:237
__mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]
mmap_read_trylock include/linux/mmap_lock.h:166 [inline]
stack_map_get_build_id_offset+0x5df/0x7d0 kernel/bpf/stackmap.c:141
__bpf_get_stack+0x6bf/0x700 kernel/bpf/stackmap.c:449
____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1985 [inline]
bpf_get_stack_raw_tp+0x124/0x160 kernel/trace/bpf_trace.c:1975
___bpf_prog_run+0x3e51/0xae80 kernel/bpf/core.c:1997
__bpf_prog_run32+0xc1/0x100 kernel/bpf/core.c:2236
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run3+0x167/0x440 kernel/trace/bpf_trace.c:2421
__bpf_trace_workqueue_queue_work+0x101/0x140 include/trace/events/workqueue.h:23
__traceiter_workqueue_queue_work+0x6c/0xc0 include/trace/events/workqueue.h:23
trace_workqueue_queue_work include/trace/events/workqueue.h:23 [inline]
__queue_work+0x627/0x1170 kernel/workqueue.c:2382
call_timer_fn+0x1a0/0x5b0 kernel/time/timer.c:1792
expire_timers kernel/time/timer.c:1838 [inline]
__run_timers+0x567/0xab0 kernel/time/timer.c:2408
__run_timer_base kernel/time/timer.c:2419 [inline]
__run_timer_base kernel/time/timer.c:2412 [inline]
run_timer_base+0x111/0x190 kernel/time/timer.c:2428
run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2438
__do_softirq+0x218/0x8de kernel/softirq.c:554
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:633 [inline]
irq_exit_rcu+0xb9/0x120 kernel/softirq.c:645
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x1f2/0x540 kernel/locking/lockdep.c:5722
Code: c1 05 ea 37 97 7e 83 f8 01 0f 85 c8 02 00 00 9c 58 f6 c4 02 0f 85 b3 02 00 00 48 85 ed 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90003457ba0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff9200068af76 RCX: ffffffff816a5d5e
RDX: 0000000000000001 RSI: ffffffff8b0cba40 RDI: ffffffff8b6e88a0
RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff27b4e38
R10: ffffffff93da71c7 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: ffff88802247b1e8 R15: 0000000000000000
__mutex_lock_common kernel/locking/mutex.c:608 [inline]
__mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752
futex_cleanup_begin kernel/futex/core.c:1091 [inline]
futex_exit_release+0x2a/0x220 kernel/futex/core.c:1143
exit_mm_release+0x19/0x30 kernel/fork.c:1652
exit_mm kernel/exit.c:542 [inline]
do_exit+0x865/0x2be0 kernel/exit.c:865
do_group_exit+0xd3/0x2a0 kernel/exit.c:1027
__do_sys_exit_group kernel/exit.c:1038 [inline]
__se_sys_exit_group kernel/exit.c:1036 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1036
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f44f7223a79
Code: 90 49 c7 c0 b8 ff ff ff be e7 00 00 00 ba 3c 00 00 00 eb 12 0f 1f 44 00 00 89 d0 0f 05 48 3d 00 f0 ff ff 77 1c f4 89 f0 0f 05 <48> 3d 00 f0 ff ff 76 e7 f7 d8 64 41 89 00 eb df 0f 1f 80 00 00 00
RSP: 002b:00007ffd5c6574d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f44f7223a79
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007f44f729e2b0 R08: ffffffffffffffb8 R09: 00000000000f4240
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f44f729e2b0
R13: 0000000000000000 R14: 00007f44f729ed20 R15: 00007f44f71f4700
</TASK>
----------------
Code disassembly (best guess):
0: c1 05 ea 37 97 7e 83 roll $0x83,0x7e9737ea(%rip) # 0x7e9737f1
7: f8 clc
8: 01 0f add %ecx,(%rdi)
a: 85 c8 test %ecx,%eax
c: 02 00 add (%rax),%al
e: 00 9c 58 f6 c4 02 0f add %bl,0xf02c4f6(%rax,%rbx,2)
15: 85 b3 02 00 00 48 test %esi,0x48000002(%rbx)
1b: 85 ed test %ebp,%ebp
1d: 74 01 je 0x20
1f: fb sti
20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
27: fc ff df
* 2a: 48 01 c3 add %rax,%rbx <-- trapping instruction
2d: 48 c7 03 00 00 00 00 movq $0x0,(%rbx)
34: 48 c7 43 08 00 00 00 movq $0x0,0x8(%rbx)
3b: 00
3c: 48 rex.W
3d: 8b .byte 0x8b
3e: 84 .byte 0x84
3f: 24 .byte 0x24
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
next reply other threads:[~2024-04-04 0:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-04 0:21 syzbot [this message]
2024-04-04 21:31 ` [syzbot] [mm?] inconsistent lock state in __mmap_lock_do_trace_acquire_returned Andrew Morton
2024-04-04 22:22 ` Alexei Starovoitov
2026-08-31 14:11 ` Forwarded: syzbot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=000000000000c98e7d06153a5177@google.com \
--to=syzbot+76f802bc1dee8ba28a6e@syzkaller.appspotmail.com \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=syzkaller-bugs@googlegroups.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.