RBP: 00007f7ba91f61d0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000000fe R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffe5e26534f R14: 00007f7ba91f6300 R15: 0000000000022000 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 24057 at kernel/locking/lockdep.c:894 look_up_lock_class+0x86/0x110 kernel/locking/lockdep.c:894 Modules linked in: CPU: 0 PID: 24057 Comm: syz-executor.1 Not tainted 5.10.223 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:look_up_lock_class+0x86/0x110 kernel/locking/lockdep.c:894 Code: 24 e8 ce 02 00 00 4d 85 e4 74 2c 49 39 5c 24 40 75 eb 48 8b 45 18 49 39 84 24 b0 00 00 00 74 1a 48 81 7d 00 00 22 15 86 74 10 <0f> 0b eb 0c e8 b1 4a 0a fe 85 c0 75 50 45 31 e4 48 83 c4 08 4c 89 RSP: 0018:ffff88804f3e7590 EFLAGS: 00010002 RAX: ffffffff84526200 RBX: ffffffff871b9521 RCX: 0000000000000000 RDX: 0000000000000046 RSI: 0000000000000001 RDI: ffff88801d77e4e8 RBP: ffff88801d77e4e8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000246 R11: 0000000000000001 R12: ffffffff868bad00 R13: ffffffff86bf59e0 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f2fa834a700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cf22000 CR3: 0000000045ae8000 CR4: 0000000000350ef0 Call Trace: register_lock_class+0xbb/0x17b0 kernel/locking/lockdep.c:1244 __lock_acquire+0x102/0x5b00 kernel/locking/lockdep.c:4834 lock_acquire kernel/locking/lockdep.c:5566 [inline] lock_acquire+0x197/0x470 kernel/locking/lockdep.c:5531 down_write_nested+0x96/0x160 kernel/locking/rwsem.c:1667 ext4_double_down_write_data_sem fs/ext4/move_extent.c:58 [inline] ext4_move_extents+0x90d/0x3050 fs/ext4/move_extent.c:610 __ext4_ioctl+0x302e/0x4190 fs/ext4/ioctl.c:999 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:739 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f2faadf5b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2fa834a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f2faaf09020 RCX: 00007f2faadf5b19 RDX: 0000000020000040 RSI: 00000000c028660f RDI: 0000000000000003 RBP: 00007f2faae4ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd628da15f R14: 00007f2fa834a300 R15: 0000000000022000 irq event stamp: 121 hardirqs last enabled at (121): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (120): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (0): [] copy_process+0x16ed/0x7800 kernel/fork.c:2075 softirqs last disabled at (0): [<0000000000000000>] 0x0 ---[ end trace 554db3eaca8208dc ]--- FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 24060 Comm: syz-executor.5 Tainted: G W 5.10.223 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x20 mm/slab_common.c:1193 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x5b/0x310 mm/slub.c:2909 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] kmem_cache_alloc_node_trace+0x16d/0x340 mm/slub.c:2946 kmalloc_node include/linux/slab.h:570 [inline] kzalloc_node include/linux/slab.h:675 [inline] io_wq_create+0x6ef/0xc00 io_uring/io-wq.c:1162 io_init_wq_offload io_uring/io_uring.c:8474 [inline] io_uring_alloc_task_context+0x1f1/0x6a0 io_uring/io_uring.c:8493 __io_uring_add_tctx_node+0x2c6/0x520 io_uring/io_uring.c:9567 io_uring_add_tctx_node io_uring/io_uring.c:9612 [inline] __do_sys_io_uring_enter+0x1489/0x18c0 io_uring/io_uring.c:9916 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f40aed52b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f40ac2a7188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 00007f40aee66020 RCX: 00007f40aed52b19 RDX: 0000000000000000 RSI: 00000000000058ab RDI: 0000000000000003 RBP: 00007f40ac2a71d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe2630cccf R14: 00007f40ac2a7300 R15: 0000000000022000 CPU: 0 PID: 24061 Comm: syz-executor.0 Tainted: G W 5.10.223 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x20 mm/slab_common.c:1193 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x5b/0x310 mm/slub.c:2909 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x159/0x310 mm/slub.c:2909 dst_alloc+0x9e/0x5d0 net/core/dst.c:89 rt_dst_clone+0x59/0x860 net/ipv4/route.c:1696 ip_mc_finish_output+0x95/0x280 net/ipv4/ip_output.c:357 NF_HOOK include/linux/netfilter.h:296 [inline] NF_HOOK include/linux/netfilter.h:290 [inline] ip_mc_output+0x853/0xa30 net/ipv4/ip_output.c:403 dst_output include/net/dst.h:436 [inline] ip_local_out net/ipv4/ip_output.c:126 [inline] ip_send_skb+0xdd/0x260 net/ipv4/ip_output.c:1590 udp_send_skb+0x6da/0x11d0 net/ipv4/udp.c:977 udp_sendmsg+0x197f/0x2160 net/ipv4/udp.c:1265 inet_sendmsg+0x105/0x140 net/ipv4/af_inet.c:830 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0x13c/0x190 net/socket.c:663 ____sys_sendmsg+0x334/0x870 net/socket.c:2378 ___sys_sendmsg+0xf3/0x170 net/socket.c:2432 __sys_sendmmsg+0x195/0x470 net/socket.c:2518 __do_sys_sendmmsg net/socket.c:2547 [inline] __se_sys_sendmmsg net/socket.c:2544 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2544 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fec83a41b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fec80f96188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fec83b55020 RCX: 00007fec83a41b19 RDX: 00000000040001a9 RSI: 0000000020000300 RDI: 0000000000000004 RBP: 00007fec80f961d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007fff9585c56f R14: 00007fec80f96300 R15: 0000000000022000 audit: type=1326 audit(1724053048.220:105): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=23933 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f31f0eedb19 code=0x0