./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2188642384 <...> Warning: Permanently added '10.128.0.132' (ED25519) to the list of known hosts. execve("./syz-executor2188642384", ["./syz-executor2188642384"], 0x7ffd8e001c80 /* 10 vars */) = 0 brk(NULL) = 0x555558f27000 brk(0x555558f27d00) = 0x555558f27d00 arch_prctl(ARCH_SET_FS, 0x555558f27380) = 0 set_tid_address(0x555558f27650) = 5835 set_robust_list(0x555558f27660, 24) = 0 rseq(0x555558f27ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2188642384", 4096) = 28 getrandom("\xed\xf6\x8d\x95\xb4\xab\x9b\x90", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555558f27d00 brk(0x555558f48d00) = 0x555558f48d00 brk(0x555558f49000) = 0x555558f49000 mprotect(0x7f61f43ad000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5837 attached , child_tidptr=0x555558f27650) = 5837 [pid 5837] set_robust_list(0x555558f27660, 24) = 0 [pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5837] setpgid(0, 0) = 0 [pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5837] write(3, "1000", 4) = 4 [pid 5837] close(3) = 0 [pid 5837] write(1, "executing program\n", 18executing program ) = 18 [pid 5837] memfd_create("syzkaller", 0) = 3 [pid 5837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f61ebe00000 [pid 5837] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5837] munmap(0x7f61ebe00000, 138412032) = 0 [pid 5837] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5837] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5837] close(3) = 0 [pid 5837] close(4) = 0 [pid 5837] mkdir("./file2", 0777) = 0 [ 62.173571][ T5837] loop0: detected capacity change from 0 to 32768 [ 62.248591][ T5837] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,fix_errors=ask,norecovery,nojournal_transaction_names,noexcl,reconstruct_alloc,nocow,no_data_io [ 62.271293][ T5837] bcachefs (loop0): recovering from clean shutdown, journal seq 3338 [ 62.279930][ T5837] bcachefs (loop0): Version upgrade required: [ 62.279930][ T5837] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 62.279930][ T5837] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 62.279930][ T5837] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance [ 62.353872][ T5837] bcachefs (loop0): dropping and reconstructing all alloc info [ 62.366120][ T5837] bcachefs (loop0): error validating btree node on loop0 at btree inodes level 0/0 [ 62.366137][ T5837] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 7589ab5e0c11cc7a written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0 [ 62.366145][ T5837] node offset 0/24 bset u64s 0: incorrect max key 18446462598732840960:14872293344460931071:U32_MAX [ 62.400378][ T5837] bcachefs (loop0): flagging btree inodes lost data [ 62.409474][ T5837] error reading btree root inodes l=0: btree_node_read_error, fixing [ 62.417853][ T5837] bcachefs (loop0): will run btree node scan [ 62.425664][ T5837] invalid bkey u64s 7 type xattr 536870912:3798421620223919902:U32_MAX len 0 ver 0: user.: [ 62.425680][ T5837] xattr name has invalid characters: delete?, fixing [ 62.443140][ T5837] ------------[ cut here ]------------ [ 62.448751][ T5837] kernel BUG at fs/bcachefs/btree_io.c:1743! [ 62.455063][ T5837] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 62.462373][ T5837] CPU: 1 UID: 0 PID: 5837 Comm: syz-executor218 Not tainted 6.12.0-syzkaller-07834-g06afb0f36106 #0 [ 62.473133][ T5837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 62.483189][ T5837] RIP: 0010:bch2_btree_root_read+0x78d/0x7a0 [ 62.489370][ T5837] Code: ff 44 89 f1 80 e1 07 38 c1 0f 8c 98 fa ff ff 4c 89 f7 e8 46 11 f1 fd e9 8b fa ff ff e8 fc 7c 89 fd 90 0f 0b e8 f4 7c 89 fd 90 <0f> 0b e8 6c 87 b2 07 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 [ 62.508973][ T5837] RSP: 0018:ffffc90003cff3a0 EFLAGS: 00010293 [ 62.515035][ T5837] RAX: ffffffff840bcfec RBX: 00000000ffffffef RCX: ffff888030103c00 [ 62.522997][ T5837] RDX: 0000000000000000 RSI: 00000000ffffffef RDI: 0000000000000000 [ 62.530959][ T5837] RBP: ffffc90003cff4e0 R08: ffffffff840bce31 R09: 1ffff9200079fe5c [ 62.539095][ T5837] R10: dffffc0000000000 R11: fffff5200079fe5d R12: ffff8880267c3000 [ 62.547053][ T5837] R13: 0000000000023001 R14: ffff888075481a80 R15: 0000000000000000 [ 62.555014][ T5837] FS: 0000555558f27380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 62.564034][ T5837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.570620][ T5837] CR2: 0000561131630e88 CR3: 0000000077218000 CR4: 00000000003526f0 [ 62.578597][ T5837] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.586737][ T5837] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.594699][ T5837] Call Trace: [ 62.597973][ T5837] [ 62.600894][ T5837] ? __die_body+0x5f/0xb0 [ 62.605219][ T5837] ? die+0x9e/0xc0 [ 62.608935][ T5837] ? do_trap+0x15a/0x3a0 [ 62.613171][ T5837] ? bch2_btree_root_read+0x78d/0x7a0 [ 62.618535][ T5837] ? do_error_trap+0x1dc/0x2c0 [ 62.623294][ T5837] ? bch2_btree_root_read+0x78d/0x7a0 [ 62.628682][ T5837] ? __pfx_do_error_trap+0x10/0x10 [ 62.633801][ T5837] ? handle_invalid_op+0x34/0x40 [ 62.638732][ T5837] ? bch2_btree_root_read+0x78d/0x7a0 [ 62.644101][ T5837] ? exc_invalid_op+0x38/0x50 [ 62.648781][ T5837] ? asm_exc_invalid_op+0x1a/0x20 [ 62.653799][ T5837] ? bch2_btree_root_read+0x5d1/0x7a0 [ 62.659166][ T5837] ? bch2_btree_root_read+0x78c/0x7a0 [ 62.664533][ T5837] ? bch2_btree_root_read+0x78d/0x7a0 [ 62.669906][ T5837] ? __pfx_bch2_btree_root_read+0x10/0x10 [ 62.675622][ T5837] ? bch2_current_has_btree_trans+0x142/0x180 [ 62.681687][ T5837] read_btree_roots+0x296/0x840 [ 62.686536][ T5837] bch2_fs_recovery+0x2585/0x39d0 [ 62.691653][ T5837] ? __pfx_bch2_fs_recovery+0x10/0x10 [ 62.697024][ T5837] ? __pfx_lock_release+0x10/0x10 [ 62.702144][ T5837] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 62.707770][ T5837] ? __pfx_lock_release+0x10/0x10 [ 62.712792][ T5837] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 62.718418][ T5837] ? bch2_get_next_online_dev+0x4b9/0x4f0 [ 62.724124][ T5837] ? bch2_get_next_online_dev+0x2b/0x4f0 [ 62.729748][ T5837] ? llist_reverse_order+0x72/0x90 [ 62.734849][ T5837] bch2_fs_start+0x356/0x5b0 [ 62.739432][ T5837] bch2_fs_get_tree+0xd68/0x1710 [ 62.744367][ T5837] ? __pfx_bch2_fs_get_tree+0x10/0x10 [ 62.749724][ T5837] ? smack_fs_context_parse_param+0xff/0x170 [ 62.755704][ T5837] ? generic_parse_monolithic+0x387/0x400 [ 62.761440][ T5837] ? cap_capable+0x1b4/0x250 [ 62.766221][ T5837] ? safesetid_security_capable+0xb2/0x1d0 [ 62.772019][ T5837] vfs_get_tree+0x90/0x2b0 [ 62.776436][ T5837] do_new_mount+0x2be/0xb40 [ 62.780931][ T5837] ? __pfx_do_new_mount+0x10/0x10 [ 62.785959][ T5837] __se_sys_mount+0x2d6/0x3c0 [ 62.790630][ T5837] ? __pfx___se_sys_mount+0x10/0x10 [ 62.795823][ T5837] ? do_syscall_64+0x100/0x230 [ 62.800580][ T5837] ? __x64_sys_mount+0x20/0xc0 [ 62.805338][ T5837] do_syscall_64+0xf3/0x230 [ 62.809831][ T5837] ? clear_bhb_loop+0x35/0x90 [ 62.814500][ T5837] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.820385][ T5837] RIP: 0033:0x7f61f4335dea [ 62.824797][ T5837] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 62.844392][ T5837] RSP: 002b:00007ffc758a1a58 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 62.852800][ T5837] RAX: ffffffffffffffda RBX: 00007ffc758a1a70 RCX: 00007f61f4335dea [ 62.860761][ T5837] RDX: 00000000200058c0 RSI: 0000000020000000 RDI: 00007ffc758a1a70 [ 62.868721][ T5837] RBP: 0000000000000004 R08: 00007ffc758a1ab0 R09: 000000000000596c [ 62.876679][ T5837] R10: 0000000000210008 R11: 0000000000000282 R12: 0000000000210008 [ 62.884639][ T5837] R13: 00007ffc758a1ab0 R14: 0000000000000003 R15: 0000000001000000 [ 62.892604][ T5837] [ 62.895613][ T5837] Modules linked in: [ 62.899683][ T5837] ---[ end trace 0000000000000000 ]--- [ 62.905285][ T5837] RIP: 0010:bch2_btree_root_read+0x78d/0x7a0 [ 62.911378][ T5837] Code: ff 44 89 f1 80 e1 07 38 c1 0f 8c 98 fa ff ff 4c 89 f7 e8 46 11 f1 fd e9 8b fa ff ff e8 fc 7c 89 fd 90 0f 0b e8 f4 7c 89 fd 90 <0f> 0b e8 6c 87 b2 07 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 [ 62.931058][ T5837] RSP: 0018:ffffc90003cff3a0 EFLAGS: 00010293 [ 62.937171][ T5837] RAX: ffffffff840bcfec RBX: 00000000ffffffef RCX: ffff888030103c00 [ 62.945166][ T5837] RDX: 0000000000000000 RSI: 00000000ffffffef RDI: 0000000000000000 [ 62.953161][ T5837] RBP: ffffc90003cff4e0 R08: ffffffff840bce31 R09: 1ffff9200079fe5c [ 62.961137][ T5837] R10: dffffc0000000000 R11: fffff5200079fe5d R12: ffff8880267c3000 [ 62.969129][ T5837] R13: 0000000000023001 R14: ffff888075481a80 R15: 0000000000000000 [ 62.977122][ T5837] FS: 0000555558f27380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 62.986072][ T5837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.992663][ T5837] CR2: 000055caf244b0d8 CR3: 0000000077218000 CR4: 00000000003526f0 [ 63.000686][ T5837] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.008683][ T5837] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.016826][ T5837] Kernel panic - not syncing: Fatal exception [ 63.023011][ T5837] Kernel Offset: disabled [ 63.027323][ T5837] Rebooting in 86400 seconds..