FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 UID: 0 PID: 5108 Comm: syz.0.0 Not tainted 6.12.0-rc1-syzkaller-00042-gf23aa4c0761a #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 fail_dump lib/fault-inject.c:53 [inline] should_fail_ex+0x3b0/0x4e0 lib/fault-inject.c:154 should_failslab+0xac/0x100 mm/failslab.c:46 slab_pre_alloc_hook mm/slub.c:4039 [inline] slab_alloc_node mm/slub.c:4115 [inline] __kmalloc_cache_noprof+0x6c/0x2c0 mm/slub.c:4291 kmalloc_noprof include/linux/slab.h:878 [inline] ulist_add_merge+0x18c/0x4b0 fs/btrfs/ulist.c:223 add_extent_changeset fs/btrfs/extent-io-tree.c:216 [inline] clear_state_bit+0x170/0x370 fs/btrfs/extent-io-tree.c:583 __clear_extent_bit+0x51c/0xc20 fs/btrfs/extent-io-tree.c:752 clear_record_extent_bits+0x4d/0x90 fs/btrfs/extent-io-tree.c:1829 __btrfs_qgroup_release_data+0x5a9/0xab0 fs/btrfs/qgroup.c:4359 alloc_ordered_extent+0x112/0x5d0 fs/btrfs/ordered-data.c:168 btrfs_alloc_ordered_extent+0x1e4/0xa70 btrfs_create_dio_extent+0x79/0x160 fs/btrfs/direct-io.c:153 btrfs_new_extent_direct fs/btrfs/direct-io.c:203 [inline] btrfs_get_blocks_direct_write+0x972/0xfa0 fs/btrfs/direct-io.c:321 btrfs_dio_iomap_begin+0xbb7/0x1180 fs/btrfs/direct-io.c:525 iomap_iter+0x691/0xf60 fs/iomap/iter.c:91 __iomap_dio_rw+0xdea/0x2370 fs/iomap/direct-io.c:677 btrfs_dio_write fs/btrfs/direct-io.c:775 [inline] btrfs_direct_write+0x61b/0xa70 fs/btrfs/direct-io.c:880 btrfs_do_write_iter+0x2a0/0x760 fs/btrfs/file.c:1505 iter_file_splice_write+0xbfa/0x1510 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0x11b/0x220 fs/splice.c:1164 splice_direct_to_actor+0x586/0xc80 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x289/0x3e0 fs/splice.c:1233 do_sendfile+0x561/0xe10 fs/read_write.c:1388 __do_sys_sendfile64 fs/read_write.c:1455 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1441 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: 0033:0x7f3d4437dff9 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:00007f3d45145038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f3d44536058 RCX: 00007f3d4437dff9 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000006 RBP: 00007f3d45145090 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000200201005 R11: 0000000000000246 R12: 0000000000000002 R13: 0000000000000001 R14: 00007f3d44536058 R15: 00007fff2a907f68 ------------[ cut here ]------------ kernel BUG at fs/btrfs/extent-io-tree.c:584! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5108 Comm: syz.0.0 Not tainted 6.12.0-rc1-syzkaller-00042-gf23aa4c0761a #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:clear_state_bit+0x364/0x370 fs/btrfs/extent-io-tree.c:584 Code: 20 fe e9 89 fd ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c b0 fe ff ff 48 89 ef e8 07 c5 20 fe e9 a3 fe ff ff e8 ed 13 b7 fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000b9ae958 EFLAGS: 00010293 RAX: ffffffff83ddc7c3 RBX: 00000000fffffff4 RCX: ffff88801edb4880 RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff83ddc5db R09: 00000000ffffffff R10: dffffc0000000000 R11: fffffbfff1d4a3cb R12: ffffc9000b9aeb58 R13: ffff88803d32bcc0 R14: 0000000000001000 R15: 0000000000000000 FS: 00007f3d451456c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3d45144f98 CR3: 000000003e3f6000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __clear_extent_bit+0x51c/0xc20 fs/btrfs/extent-io-tree.c:752 clear_record_extent_bits+0x4d/0x90 fs/btrfs/extent-io-tree.c:1829 __btrfs_qgroup_release_data+0x5a9/0xab0 fs/btrfs/qgroup.c:4359 alloc_ordered_extent+0x112/0x5d0 fs/btrfs/ordered-data.c:168 btrfs_alloc_ordered_extent+0x1e4/0xa70 btrfs_create_dio_extent+0x79/0x160 fs/btrfs/direct-io.c:153 btrfs_new_extent_direct fs/btrfs/direct-io.c:203 [inline] btrfs_get_blocks_direct_write+0x972/0xfa0 fs/btrfs/direct-io.c:321 btrfs_dio_iomap_begin+0xbb7/0x1180 fs/btrfs/direct-io.c:525 iomap_iter+0x691/0xf60 fs/iomap/iter.c:91 __iomap_dio_rw+0xdea/0x2370 fs/iomap/direct-io.c:677 btrfs_dio_write fs/btrfs/direct-io.c:775 [inline] btrfs_direct_write+0x61b/0xa70 fs/btrfs/direct-io.c:880 btrfs_do_write_iter+0x2a0/0x760 fs/btrfs/file.c:1505 iter_file_splice_write+0xbfa/0x1510 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0x11b/0x220 fs/splice.c:1164 splice_direct_to_actor+0x586/0xc80 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x289/0x3e0 fs/splice.c:1233 do_sendfile+0x561/0xe10 fs/read_write.c:1388 __do_sys_sendfile64 fs/read_write.c:1455 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1441 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: 0033:0x7f3d4437dff9 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:00007f3d45145038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f3d44536058 RCX: 00007f3d4437dff9 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000006 RBP: 00007f3d45145090 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000200201005 R11: 0000000000000246 R12: 0000000000000002 R13: 0000000000000001 R14: 00007f3d44536058 R15: 00007fff2a907f68 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:clear_state_bit+0x364/0x370 fs/btrfs/extent-io-tree.c:584 Code: 20 fe e9 89 fd ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c b0 fe ff ff 48 89 ef e8 07 c5 20 fe e9 a3 fe ff ff e8 ed 13 b7 fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000b9ae958 EFLAGS: 00010293 RAX: ffffffff83ddc7c3 RBX: 00000000fffffff4 RCX: ffff88801edb4880 RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff83ddc5db R09: 00000000ffffffff R10: dffffc0000000000 R11: fffffbfff1d4a3cb R12: ffffc9000b9aeb58 R13: ffff88803d32bcc0 R14: 0000000000001000 R15: 0000000000000000 FS: 00007f3d451456c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3d45144f98 CR3: 000000003e3f6000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400