================================ WARNING: inconsistent lock state 6.9.0-rc1-syzkaller-00379-g18737353cca0 #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. syz-executor.3/9760 [HC0[0]:SC1[3]:HE1:SE0] takes: ffffffff8dcbca58 (padata_works_lock){+.?.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] ffffffff8dcbca58 (padata_works_lock){+.?.}-{2:2}, at: padata_do_parallel+0x3af/0x9e0 kernel/padata.c:213 {SOFTIRQ-ON-W} state was registered at: lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] padata_work_alloc_mt kernel/padata.c:109 [inline] padata_do_multithreaded+0x213/0xad0 kernel/padata.c:507 gather_bootmem_prealloc mm/hugetlb.c:3478 [inline] hugetlb_init+0x38b/0x1150 mm/hugetlb.c:4634 do_one_initcall+0x128/0x700 init/main.c:1238 do_initcall_level init/main.c:1300 [inline] do_initcalls init/main.c:1316 [inline] do_basic_setup init/main.c:1335 [inline] kernel_init_freeable+0x69d/0xca0 init/main.c:1548 kernel_init+0x1c/0x2b0 init/main.c:1437 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 irq event stamp: 2347422 hardirqs last enabled at (2347422): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (2347422): [] _raw_spin_unlock_irqrestore+0x52/0x80 kernel/locking/spinlock.c:194 hardirqs last disabled at (2347421): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (2347421): [] _raw_spin_lock_irqsave+0x52/0x60 kernel/locking/spinlock.c:162 softirqs last enabled at (2342856): [] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (2342856): [] __do_softirq+0x5da/0x922 kernel/softirq.c:583 softirqs last disabled at (2347407): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (2347407): [] __irq_exit_rcu kernel/softirq.c:633 [inline] softirqs last disabled at (2347407): [] irq_exit_rcu+0xb9/0x120 kernel/softirq.c:645 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(padata_works_lock); lock(padata_works_lock); *** DEADLOCK *** 4 locks held by syz-executor.3/9760: #0: ffff8880234280e0 (&type->s_umount_key#110){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff8880234280e0 (&type->s_umount_key#110){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff8880234280e0 (&type->s_umount_key#110){+.+.}-{3:3}, at: deactivate_super+0xd6/0x100 fs/super.c:504 #1: ffffc900008f8cb0 ((&d->timer)){+.-.}-{0:0}, at: call_timer_fn+0x11a/0x610 kernel/time/timer.c:1790 #2: ffffffff8dbb1560 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #2: ffffffff8dbb1560 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #2: ffffffff8dbb1560 (rcu_read_lock){....}-{1:2}, at: tipc_bearer_xmit_skb+0xb8/0x430 net/tipc/bearer.c:564 #3: ffffffff8dbb1500 (rcu_read_lock_bh){....}-{1:2}, at: local_bh_disable include/linux/bottom_half.h:20 [inline] #3: ffffffff8dbb1500 (rcu_read_lock_bh){....}-{1:2}, at: rcu_read_lock_bh include/linux/rcupdate.h:833 [inline] #3: ffffffff8dbb1500 (rcu_read_lock_bh){....}-{1:2}, at: padata_do_parallel+0x42/0x9e0 kernel/padata.c:183 stack backtrace: CPU: 3 PID: 9760 Comm: syz-executor.3 Not tainted 6.9.0-rc1-syzkaller-00379-g18737353cca0 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Call Trace: __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+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] padata_do_parallel+0x3af/0x9e0 kernel/padata.c:213 pcrypt_aead_encrypt+0x3a3/0x4f0 crypto/pcrypt.c:117 crypto_aead_encrypt+0xbe/0x100 crypto/aead.c:121 tipc_aead_encrypt net/tipc/crypto.c:821 [inline] tipc_crypto_xmit+0xe3d/0x23e0 net/tipc/crypto.c:1756 tipc_bearer_xmit_skb+0x160/0x430 net/tipc/bearer.c:568 tipc_disc_timeout+0x5b3/0x850 net/tipc/discover.c:338 call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1793 expire_timers kernel/time/timer.c:1844 [inline] __run_timers+0x74b/0xaf0 kernel/time/timer.c:2418 __run_timer_base kernel/time/timer.c:2429 [inline] __run_timer_base kernel/time/timer.c:2422 [inline] run_timer_base+0x111/0x190 kernel/time/timer.c:2438 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2448 __do_softirq+0x218/0x922 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 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_pc+0x33/0x60 kernel/kcov.c:207 Code: 65 76 7e 65 8b 05 25 65 76 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 35 8b 82 14 16 00 00 85 c0 74 2b 8b 82 f0 15 00 00 <83> f8 02 75 20 48 8b 8a f8 15 00 00 8b 92 f4 15 00 00 48 8b 01 48 RSP: 0018:ffffc90003b9f5a0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8134284f RDX: ffff888027030000 RSI: ffffffff813427f9 RDI: 0000000000000005 RBP: ffffc90003b9f640 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffc90003b9f5b0 R13: ffffffff81793df0 R14: ffffc90003b9f670 R15: ffff888027030000 arch_stack_walk+0xb9/0x170 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579 poison_slab_object mm/kasan/common.c:240 [inline] __kasan_slab_free+0x11d/0x1a0 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2106 [inline] slab_free mm/slub.c:4280 [inline] kfree+0x129/0x390 mm/slub.c:4390 kvfree+0x47/0x50 mm/util.c:680 f2fs_destroy_node_manager+0x85a/0xc60 fs/f2fs/node.c:3408 f2fs_put_super+0x6c8/0xf60 fs/f2fs/super.c:1658 generic_shutdown_super+0x159/0x3d0 fs/super.c:641 kill_block_super+0x3b/0x90 fs/super.c:1693 kill_f2fs_super+0x2b4/0x440 fs/f2fs/super.c:4857 deactivate_locked_super+0xbe/0x1a0 fs/super.c:472 deactivate_super+0xde/0x100 fs/super.c:505 cleanup_mnt+0x222/0x450 fs/namespace.c:1267 task_work_run+0x14e/0x250 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x275/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xe2/0x260 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x72/0x7a RIP: 0033:0x7feb5a67f0d7 Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fff44da0148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007feb5a67f0d7 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff44da0200 RBP: 00007fff44da0200 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff44da12c0 R13: 00007feb5a6c93b9 R14: 00000000000340c5 R15: 000000000000000d ---------------- Code disassembly (best guess): 0: 65 76 7e gs jbe 0x81 3: 65 8b 05 25 65 76 7e mov %gs:0x7e766525(%rip),%eax # 0x7e76652f a: a9 00 01 ff 00 test $0xff0100,%eax f: 48 8b 34 24 mov (%rsp),%rsi 13: 74 0f je 0x24 15: f6 c4 01 test $0x1,%ah 18: 74 35 je 0x4f 1a: 8b 82 14 16 00 00 mov 0x1614(%rdx),%eax 20: 85 c0 test %eax,%eax 22: 74 2b je 0x4f 24: 8b 82 f0 15 00 00 mov 0x15f0(%rdx),%eax * 2a: 83 f8 02 cmp $0x2,%eax <-- trapping instruction 2d: 75 20 jne 0x4f 2f: 48 8b 8a f8 15 00 00 mov 0x15f8(%rdx),%rcx 36: 8b 92 f4 15 00 00 mov 0x15f4(%rdx),%edx 3c: 48 8b 01 mov (%rcx),%rax 3f: 48 rex.W