------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 1 PID: 7166 at kernel/locking/lockdep.c:234 hlock_class kernel/locking/lockdep.c:234 [inline] WARNING: CPU: 1 PID: 7166 at kernel/locking/lockdep.c:234 check_wait_context kernel/locking/lockdep.c:4852 [inline] WARNING: CPU: 1 PID: 7166 at kernel/locking/lockdep.c:234 __lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5178 Modules linked in: CPU: 1 UID: 0 PID: 7166 Comm: syz.0.329 Not tainted 6.14.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:hlock_class kernel/locking/lockdep.c:234 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4852 [inline] RIP: 0010:__lock_acquire+0x564/0x2100 kernel/locking/lockdep.c:5178 Code: 00 00 83 3d 61 52 a0 0e 00 75 23 90 48 c7 c7 20 b2 2a 8c 48 c7 c6 20 b5 2a 8c e8 f7 bc e4 ff 48 ba 00 00 00 00 00 fc ff df 90 <0f> 0b 90 90 90 31 db 48 81 c3 c4 00 00 00 48 89 d8 48 c1 e8 03 0f RSP: 0018:ffffc9000f42f430 EFLAGS: 00010046 RAX: 15f3a6cbd0628f00 RBX: 0000000000001b20 RCX: 0000000000080000 RDX: dffffc0000000000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: 00000000000c1b20 R08: ffffffff81819e52 R09: 1ffff110170e519a R10: dffffc0000000000 R11: ffffed10170e519b R12: ffff8880272f0ad4 R13: 0000000000000000 R14: 1ffff11004e5e162 R15: ffff8880272f0b10 FS: 00007fd30a1326c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c431e93 CR3: 00000000324dc000 CR4: 0000000000350ef0 Call Trace: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:606 raw_spin_rq_lock kernel/sched/sched.h:1521 [inline] rq_lock kernel/sched/sched.h:1852 [inline] __schedule+0x357/0x4c90 kernel/sched/core.c:6688 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7087 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707 RIP: 0010:__asan_memset+0x25/0x50 mm/kasan/shadow.c:84 Code: 90 90 90 90 90 f3 0f 1e fa 55 41 56 53 48 89 d3 41 89 f6 48 89 fd 48 8b 4c 24 18 48 89 d6 ba 01 00 00 00 e8 7d e6 ff ff 84 c0 <74> 12 48 89 ef 44 89 f6 48 89 da 5b 41 5e 5d e9 37 ca df 09 31 c0 RSP: 0018:ffffc9000f42fa60 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000080 RCX: ffffffff89c046fc RDX: 0000000000000001 RSI: 0000000000000080 RDI: ffffc9000f42fb40 RBP: ffffc9000f42fb40 R08: ffffc9000f42fbbf R09: 1ffff92001e85f77 R10: dffffc0000000000 R11: fffff52001e85f78 R12: dffffc0000000000 R13: 00000000000031e1 R14: 0000000000000000 R15: 00000000000031e3 ___sys_recvmsg net/socket.c:2826 [inline] do_recvmmsg+0x34c/0xab0 net/socket.c:2930 __sys_recvmmsg net/socket.c:3004 [inline] __do_sys_recvmmsg net/socket.c:3027 [inline] __se_sys_recvmmsg net/socket.c:3020 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3020 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: 0033:0x7fd30938d169 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:00007fd30a132038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007fd3095a6080 RCX: 00007fd30938d169 RDX: 0000000000010106 RSI: 00004000000000c0 RDI: 0000000000000005 RBP: 00007fd30940e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd3095a6080 R15: 00007ffffed715c8 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: f3 0f 1e fa endbr64 9: 55 push %rbp a: 41 56 push %r14 c: 53 push %rbx d: 48 89 d3 mov %rdx,%rbx 10: 41 89 f6 mov %esi,%r14d 13: 48 89 fd mov %rdi,%rbp 16: 48 8b 4c 24 18 mov 0x18(%rsp),%rcx 1b: 48 89 d6 mov %rdx,%rsi 1e: ba 01 00 00 00 mov $0x1,%edx 23: e8 7d e6 ff ff call 0xffffe6a5 28: 84 c0 test %al,%al * 2a: 74 12 je 0x3e <-- trapping instruction 2c: 48 89 ef mov %rbp,%rdi 2f: 44 89 f6 mov %r14d,%esi 32: 48 89 da mov %rbx,%rdx 35: 5b pop %rbx 36: 41 5e pop %r14 38: 5d pop %rbp 39: e9 37 ca df 09 jmp 0x9dfca75 3e: 31 c0 xor %eax,%eax