================================ WARNING: inconsistent lock state 5.14.0-rc7-syzkaller #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. syz-executor.2/28034 [HC0[0]:SC1[1]:HE1:SE0] takes: ffffe8ffffc45b18 (&pd_list->lock){+.?.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] ffffe8ffffc45b18 (&pd_list->lock){+.?.}-{2:2}, at: padata_do_serial+0x192/0x410 kernel/padata.c:405 {SOFTIRQ-ON-W} state was registered at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] padata_do_serial+0x192/0x410 kernel/padata.c:405 pcrypt_aead_enc+0x57/0x70 crypto/pcrypt.c:87 padata_do_parallel+0x754/0x8b0 kernel/padata.c:230 pcrypt_aead_encrypt+0x39f/0x4d0 crypto/pcrypt.c:115 crypto_aead_encrypt+0xaa/0xf0 crypto/aead.c:94 tls_do_encryption net/tls/tls_sw.c:529 [inline] tls_push_record+0x13d7/0x31c0 net/tls/tls_sw.c:762 bpf_exec_tx_verdict+0xd82/0x11a0 net/tls/tls_sw.c:802 tls_sw_sendmsg+0xa34/0x17f0 net/tls/tls_sw.c:1014 inet6_sendmsg+0x99/0xe0 net/ipv6/af_inet6.c:642 sock_sendmsg_nosec net/socket.c:703 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:723 __sys_sendto+0x21c/0x320 net/socket.c:2019 __do_sys_sendto net/socket.c:2031 [inline] __se_sys_sendto net/socket.c:2027 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2027 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae irq event stamp: 8462 hardirqs last enabled at (8462): [] __local_bh_enable_ip+0xa0/0x120 kernel/softirq.c:388 hardirqs last disabled at (8461): [] __local_bh_enable_ip+0xc3/0x120 kernel/softirq.c:365 softirqs last enabled at (5462): [] memcpy include/linux/fortify-string.h:191 [inline] softirqs last enabled at (5462): [] fpu_clone+0x13c/0x600 arch/x86/kernel/fpu/core.c:275 softirqs last disabled at (8379): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (8379): [] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&pd_list->lock); lock(&pd_list->lock); *** DEADLOCK *** 2 locks held by syz-executor.2/28034: #0: ffffc90000dc0d70 ((&d->timer)){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:35 [inline] #0: ffffc90000dc0d70 ((&d->timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x6b0 kernel/time/timer.c:1411 #1: ffffffff8b97c280 (rcu_read_lock){....}-{1:2}, at: buf_msg net/tipc/msg.h:202 [inline] #1: ffffffff8b97c280 (rcu_read_lock){....}-{1:2}, at: tipc_bearer_xmit_skb+0x8c/0x400 net/tipc/bearer.c:549 stack backtrace: CPU: 1 PID: 28034 Comm: syz-executor.2 Not tainted 5.14.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105 print_usage_bug kernel/locking/lockdep.c:203 [inline] valid_state kernel/locking/lockdep.c:3933 [inline] mark_lock_irq kernel/locking/lockdep.c:4136 [inline] mark_lock.cold+0x61/0x8e kernel/locking/lockdep.c:4593 mark_usage kernel/locking/lockdep.c:4488 [inline] __lock_acquire+0x11d5/0x54a0 kernel/locking/lockdep.c:4969 lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] padata_do_serial+0x192/0x410 kernel/padata.c:405 pcrypt_aead_enc+0x57/0x70 crypto/pcrypt.c:87 padata_do_parallel+0x754/0x8b0 kernel/padata.c:230 pcrypt_aead_encrypt+0x39f/0x4d0 crypto/pcrypt.c:115 crypto_aead_encrypt+0xaa/0xf0 crypto/aead.c:94 tipc_aead_encrypt net/tipc/crypto.c:828 [inline] tipc_crypto_xmit+0x1066/0x2d90 net/tipc/crypto.c:1763 tipc_bearer_xmit_skb+0x164/0x400 net/tipc/bearer.c:556 tipc_disc_timeout+0x75e/0xcb0 net/tipc/discover.c:335 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:191 Code: 74 24 10 e8 5a fa 2d f8 48 89 ef e8 02 70 2e f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 c3 4d 22 f8 65 8b 05 bc c8 d4 76 85 c0 74 0a 5b 5d c3 e8 a0 aa RSP: 0018:ffffc9000187fc78 EFLAGS: 00000206 RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1ad8ad9 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff8880b9d42400 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817bd228 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000001 R14: ffffc9000187fdd8 R15: ffff88808b0db880 hrtimer_start_expires include/linux/hrtimer.h:436 [inline] hrtimer_sleeper_start_expires kernel/time/hrtimer.c:1817 [inline] do_nanosleep+0x1e8/0x690 kernel/time/hrtimer.c:1893 hrtimer_nanosleep+0x1f9/0x4a0 kernel/time/hrtimer.c:1949 common_nsleep+0xa2/0xc0 kernel/time/posix-timers.c:1227 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1267 [inline] __se_sys_clock_nanosleep kernel/time/posix-timers.c:1245 [inline] __x64_sys_clock_nanosleep+0x2f4/0x430 kernel/time/posix-timers.c:1245 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x48a7c1 Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 aa e7 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 e3 e7 ff ff 48 8b 04 24 eb 97 66 2e 0f 1f RSP: 002b:00007ffd27462ed0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 00000000002b88dd RCX: 000000000048a7c1 RDX: 00007ffd27462f10 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffd274dc080 R10: 0000000000000000 R11: 0000000000000293 R12: 000000000056bf80 R13: 000000000056cb00 R14: 000000000056bf80 R15: 00000000002b859c GRED: Unable to relocate VQ 0x0 after dequeue, screwing up backlog GRED: Unable to relocate VQ 0x0 after dequeue, screwing up backlog ---------------- Code disassembly (best guess): 0: 74 24 je 0x26 2: 10 e8 adc %ch,%al 4: 5a pop %rdx 5: fa cli 6: 2d f8 48 89 ef sub $0xef8948f8,%eax b: e8 02 70 2e f8 callq 0xf82e7012 10: 81 e3 00 02 00 00 and $0x200,%ebx 16: 75 25 jne 0x3d 18: 9c pushfq 19: 58 pop %rax 1a: f6 c4 02 test $0x2,%ah 1d: 75 2d jne 0x4c 1f: 48 85 db test %rbx,%rbx 22: 74 01 je 0x25 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 c3 4d 22 f8 callq 0xf8224df2 <-- trapping instruction 2f: 65 8b 05 bc c8 d4 76 mov %gs:0x76d4c8bc(%rip),%eax # 0x76d4c8f2 36: 85 c0 test %eax,%eax 38: 74 0a je 0x44 3a: 5b pop %rbx 3b: 5d pop %rbp 3c: c3 retq 3d: e8 .byte 0xe8 3e: a0 .byte 0xa0 3f: aa stos %al,%es:(%rdi)