------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 0 PID: 6382 at kernel/locking/lockdep.c:231 hlock_class kernel/locking/lockdep.c:231 [inline] WARNING: CPU: 0 PID: 6382 at kernel/locking/lockdep.c:231 check_wait_context kernel/locking/lockdep.c:4772 [inline] WARNING: CPU: 0 PID: 6382 at kernel/locking/lockdep.c:231 __lock_acquire+0x58c/0x2040 kernel/locking/lockdep.c:5092 Modules linked in: CPU: 0 UID: 0 PID: 6382 Comm: syz.4.292 Not tainted 6.11.0-rc5-syzkaller-00176-g20371ba12063 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:hlock_class kernel/locking/lockdep.c:231 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4772 [inline] RIP: 0010:__lock_acquire+0x58c/0x2040 kernel/locking/lockdep.c:5092 Code: 00 00 83 3d 85 b5 a8 0e 00 75 23 90 48 c7 c7 00 d4 0a 8c 48 c7 c6 a0 d6 0a 8c e8 7f d8 e5 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:ffffc90004c0f090 EFLAGS: 00010046 RAX: 76393d5c5dcde900 RBX: 0000000000000f98 RCX: 0000000000040000 RDX: dffffc0000000000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 0000000000000000 R08: ffffffff8155b2f2 R09: fffffbfff1cfa0e0 R10: dffffc0000000000 R11: fffffbfff1cfa0e0 R12: ffff8880234e5a00 R13: 0000000000000f98 R14: 1ffff1100469cca0 R15: ffff8880234e6500 FS: 00007f32fee726c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000007fca2000 CR4: 0000000000350ef0 Call Trace: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:568 raw_spin_rq_lock kernel/sched/sched.h:1415 [inline] rq_lock kernel/sched/sched.h:1714 [inline] __schedule+0x357/0x4a60 kernel/sched/core.c:6436 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707 RIP: 0010:kasan_check_range+0x1b8/0x290 mm/kasan/generic.c:189 Code: 4d 01 fb 48 8d 5d 07 48 85 ed 48 0f 49 dd 48 83 e3 f8 48 29 dd 74 12 41 80 3b 00 0f 85 a6 00 00 00 49 ff c3 48 ff cd 75 ee 5b <41> 5c 41 5e 41 5f 5d e9 37 7f f5 09 40 84 ed 75 5f f7 c5 00 ff 00 RSP: 0018:ffffc90004c0f6b8 EFLAGS: 00000256 RAX: ffffffff8a545e01 RBX: 0000000000000020 RCX: ffffffff8a545e2f RDX: 0000000000000001 RSI: 0000000000000020 RDI: ffffc90004c0f7c0 RBP: 0000000000000000 R08: ffffc90004c0f7df R09: 1ffff92000981efb R10: dffffc0000000000 R11: fffff52000981efc R12: ffff8880235ec800 R13: dffffc0000000000 R14: dffffc0000000001 R15: fffff52000981efc __asan_memset+0x23/0x50 mm/kasan/shadow.c:84 __unix_dgram_recvmsg+0xcf/0x12f0 net/unix/af_unix.c:2424 sock_recvmsg_nosec+0x190/0x1d0 net/socket.c:1046 ____sys_recvmsg+0x3c0/0x470 net/socket.c:2814 ___sys_recvmsg net/socket.c:2858 [inline] do_recvmmsg+0x474/0xae0 net/socket.c:2952 __sys_recvmmsg net/socket.c:3031 [inline] __do_sys_recvmmsg net/socket.c:3054 [inline] __se_sys_recvmmsg net/socket.c:3047 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3047 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: 0033:0x7f32fe179ef9 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:00007f32fee72038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f32fe316130 RCX: 00007f32fe179ef9 RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 00007f32fe1e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f32fe316130 R15: 00007ffc59b31088 ---------------- Code disassembly (best guess): 0: 4d 01 fb add %r15,%r11 3: 48 8d 5d 07 lea 0x7(%rbp),%rbx 7: 48 85 ed test %rbp,%rbp a: 48 0f 49 dd cmovns %rbp,%rbx e: 48 83 e3 f8 and $0xfffffffffffffff8,%rbx 12: 48 29 dd sub %rbx,%rbp 15: 74 12 je 0x29 17: 41 80 3b 00 cmpb $0x0,(%r11) 1b: 0f 85 a6 00 00 00 jne 0xc7 21: 49 ff c3 inc %r11 24: 48 ff cd dec %rbp 27: 75 ee jne 0x17 29: 5b pop %rbx * 2a: 41 5c pop %r12 <-- trapping instruction 2c: 41 5e pop %r14 2e: 41 5f pop %r15 30: 5d pop %rbp 31: e9 37 7f f5 09 jmp 0x9f57f6d 36: 40 84 ed test %bpl,%bpl 39: 75 5f jne 0x9a 3b: f7 .byte 0xf7 3c: c5 00 ff (bad)