================================ WARNING: inconsistent lock state 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 Not tainted -------------------------------- inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. syz-executor.5/6571 [HC1[1]:SC0[0]:HE0:SE1] takes: ffff8880b9538828 (lock#11){?.+.}-{2:2}, at: local_lock_acquire include/linux/local_lock_internal.h:29 [inline] ffff8880b9538828 (lock#11){?.+.}-{2:2}, at: __mmap_lock_do_trace_acquire_returned+0x8f/0x630 mm/mmap_lock.c:237 {HARDIRQ-ON-W} state was registered at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 local_lock_acquire include/linux/local_lock_internal.h:29 [inline] __mmap_lock_do_trace_acquire_returned+0xa8/0x630 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:145 [inline] acct_collect+0x804/0x830 kernel/acct.c:563 do_exit+0x936/0x27e0 kernel/exit.c:853 do_group_exit+0x207/0x2c0 kernel/exit.c:1023 get_signal+0x16a1/0x1740 kernel/signal.c:2909 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] irqentry_exit_to_user_mode+0x79/0x280 kernel/entry/common.c:231 exc_page_fault+0x590/0x8c0 arch/x86/mm/fault.c:1542 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 irq event stamp: 322 hardirqs last enabled at (321): [] console_emit_next_record kernel/printk/printk.c:2935 [inline] hardirqs last enabled at (321): [] console_flush_all+0x9e5/0xfd0 kernel/printk/printk.c:2994 hardirqs last disabled at (322): [] sysvec_call_function_single+0xe/0xc0 arch/x86/kernel/smp.c:266 softirqs last enabled at (300): [] do_ip_setsockopt+0x1f44/0x3cd0 net/ipv4/ip_sockglue.c:1354 softirqs last disabled at (298): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (298): [] release_sock+0x30/0x1f0 net/core/sock.c:3547 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(lock#11); lock(lock#11); *** DEADLOCK *** 4 locks held by syz-executor.5/6571: #0: ffffffff8e20fa60 (console_lock){+.+.}-{0:0}, at: _printk+0xd5/0x120 kernel/printk/printk.c:2370 #1: ffffffff8e20f690 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:334 [inline] #1: ffffffff8e20f690 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:232 [inline] #1: ffffffff8e20f690 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:286 [inline] #1: ffffffff8e20f690 (console_srcu){....}-{0:0}, at: console_flush_all+0x152/0xfd0 kernel/printk/printk.c:2986 #2: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #2: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #2: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2402 [inline] #2: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x1fc/0x540 kernel/trace/bpf_trace.c:2444 #3: ffff88802d217398 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:163 [inline] #3: ffff88802d217398 (&mm->mmap_lock){++++}-{3:3}, at: stack_map_get_build_id_offset+0x237/0x9d0 kernel/bpf/stackmap.c:141 stack backtrace: CPU: 1 PID: 6571 Comm: syz-executor.5 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 valid_state+0x13a/0x1c0 kernel/locking/lockdep.c:4013 mark_lock_irq+0xbb/0xc20 kernel/locking/lockdep.c:4216 mark_lock+0x223/0x350 kernel/locking/lockdep.c:4678 mark_usage kernel/locking/lockdep.c:4564 [inline] __lock_acquire+0xb8e/0x1fd0 kernel/locking/lockdep.c:5091 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 local_lock_acquire include/linux/local_lock_internal.h:29 [inline] __mmap_lock_do_trace_acquire_returned+0xa8/0x630 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:164 [inline] stack_map_get_build_id_offset+0x9af/0x9d0 kernel/bpf/stackmap.c:141 __bpf_get_stack+0x4ad/0x5a0 kernel/bpf/stackmap.c:449 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1994 [inline] bpf_get_stack_raw_tp+0x1a3/0x240 kernel/trace/bpf_trace.c:1984 bpf_prog_e6cf5f9c69743609+0x42/0x4a bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline] __bpf_prog_run include/linux/filter.h:682 [inline] bpf_prog_run include/linux/filter.h:698 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2403 [inline] bpf_trace_run2+0x47f/0x540 kernel/trace/bpf_trace.c:2444 trace_tlb_flush+0x118/0x140 include/trace/events/tlb.h:38 flush_tlb_func+0x4e7/0x630 arch/x86/mm/tlb.c:892 csd_do_func kernel/smp.c:133 [inline] __flush_smp_call_function_queue+0x3fe/0x1690 kernel/smp.c:511 __sysvec_call_function_single+0xb8/0x430 arch/x86/kernel/smp.c:271 instr_sysvec_call_function_single arch/x86/kernel/smp.c:266 [inline] sysvec_call_function_single+0x9e/0xc0 arch/x86/kernel/smp.c:266 asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709 RIP: 0010:console_flush_all+0xaad/0xfd0 kernel/printk/printk.c:3000 Code: ff ff e8 16 d0 1f 00 90 0f 0b 90 e9 d8 f8 ff ff e8 08 d0 1f 00 e8 03 41 10 0a 4d 85 f6 74 b6 e8 f9 cf 1f 00 fb 48 8b 44 24 70 <42> 0f b6 04 38 84 c0 48 8b 7c 24 30 0f 85 22 02 00 00 0f b6 1f 31 RSP: 0018:ffffc9000317f120 EFLAGS: 00000287 RAX: 1ffff9200062fe70 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000aff5000 RSI: 0000000000002d3b RDI: 0000000000002d3c RBP: ffffc9000317f2d0 R08: ffffffff817656a4 R09: 1ffffffff25f56b0 R10: dffffc0000000000 R11: fffffbfff25f56b1 R12: ffffffff8eb22b98 R13: ffffffff8eb22b40 R14: 0000000000000200 R15: dffffc0000000000 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3063 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2345 _printk+0xd5/0x120 kernel/printk/printk.c:2370 reject_tg_check+0x185/0x1e0 xt_check_target+0x3bb/0xa40 net/netfilter/x_tables.c:1038 check_target net/ipv4/netfilter/ip_tables.c:510 [inline] find_check_entry net/ipv4/netfilter/ip_tables.c:552 [inline] translate_table+0x19b3/0x2260 net/ipv4/netfilter/ip_tables.c:716 do_replace net/ipv4/netfilter/ip_tables.c:1137 [inline] do_ipt_set_ctl+0xe3d/0x1250 net/ipv4/netfilter/ip_tables.c:1635 nf_setsockopt+0x297/0x2c0 net/netfilter/nf_sockopt.c:101 do_sock_setsockopt+0x3b1/0x720 net/socket.c:2312 __sys_setsockopt+0x1ae/0x250 net/socket.c:2335 __do_sys_setsockopt net/socket.c:2344 [inline] __se_sys_setsockopt net/socket.c:2341 [inline] __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2341 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: 0033:0x7f82de07cf29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f82dedce0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f82de1b4120 RCX: 00007f82de07cf29 RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000007 RBP: 00007f82de0ec074 R08: 00000000000003d8 R09: 0000000000000000 R10: 00000000200003c0 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f82de1b4120 R15: 00007fffac8b8228 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: e8 16 d0 1f 00 call 0x1fd01b 5: 90 nop 6: 0f 0b ud2 8: 90 nop 9: e9 d8 f8 ff ff jmp 0xfffff8e6 e: e8 08 d0 1f 00 call 0x1fd01b 13: e8 03 41 10 0a call 0xa10411b 18: 4d 85 f6 test %r14,%r14 1b: 74 b6 je 0xffffffd3 1d: e8 f9 cf 1f 00 call 0x1fd01b 22: fb sti 23: 48 8b 44 24 70 mov 0x70(%rsp),%rax * 28: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2d: 84 c0 test %al,%al 2f: 48 8b 7c 24 30 mov 0x30(%rsp),%rdi 34: 0f 85 22 02 00 00 jne 0x25c 3a: 0f b6 1f movzbl (%rdi),%ebx 3d: 31 .byte 0x31