./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor128726336 <...> Warning: Permanently added '10.128.0.249' (ED25519) to the list of known hosts. execve("./syz-executor128726336", ["./syz-executor128726336"], 0x7ffcbf561ff0 /* 10 vars */) = 0 brk(NULL) = 0x5555565d5000 brk(0x5555565d5d00) = 0x5555565d5d00 arch_prctl(ARCH_SET_FS, 0x5555565d5380) = 0 set_tid_address(0x5555565d5650) = 5056 set_robust_list(0x5555565d5660, 24) = 0 rseq(0x5555565d5ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor128726336", 4096) = 27 getrandom("\x07\xd3\xe6\x4d\x29\xb6\xb5\x16", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555565d5d00 brk(0x5555565f6d00) = 0x5555565f6d00 brk(0x5555565f7000) = 0x5555565f7000 mprotect(0x7f7c58a3f000, 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 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7c5058e000 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"..., 4194304) = 4194304 munmap(0x7f7c5058e000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0", 0777) = 0 [ 58.283356][ T5056] loop0: detected capacity change from 0 to 8192 [ 58.305865][ T5056] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 58.319346][ T5056] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 58.328840][ T5056] REISERFS (device loop0): using ordered data mode [ 58.335462][ T5056] reiserfs: using flush barriers [ 58.342037][ T5056] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 58.359035][ T5056] REISERFS (device loop0): checking transaction log (loop0) [ 58.416624][ T5056] REISERFS (device loop0): Using r5 hash to sort names [ 58.424717][ T5056] REISERFS panic (device loop0): vs-13065 update_stat_data: key [1 2 0x0 SD], found item *3.5*[1 2 0(0) DIR], item_len 80, item_location 3972, free_space(entry_count) 3 [ 58.442197][ T5056] ------------[ cut here ]------------ [ 58.447829][ T5056] kernel BUG at fs/reiserfs/prints.c:390! [ 58.453776][ T5056] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 58.459942][ T5056] CPU: 0 PID: 5056 Comm: syz-executor128 Not tainted 6.6.0-syzkaller-16201-gb57b17e88bf5 #0 [ 58.470043][ T5056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 58.480205][ T5056] RIP: 0010:__reiserfs_panic+0x13e/0x140 [ 58.486070][ T5056] Code: c7 c1 e0 68 7c 8b 48 0f 44 c8 48 0f 44 d8 48 c7 c7 a0 69 7c 8b 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 80 73 6f 92 e8 72 bb e0 08 <0f> 0b f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 [ 58.505855][ T5056] RSP: 0018:ffffc90003a2f4e0 EFLAGS: 00010246 [ 58.512287][ T5056] RAX: 00000000000000a6 RBX: ffffffff8b7c21a0 RCX: 92113cf80bb30000 [ 58.520883][ T5056] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 58.529134][ T5056] RBP: ffffc90003a2f5d0 R08: ffffffff8171771c R09: 1ffff92000745e3c [ 58.537902][ T5056] R10: dffffc0000000000 R11: fffff52000745e3d R12: ffffffff8b7c21c0 [ 58.545907][ T5056] R13: ffffc90003a2f500 R14: ffffffff8d13cfbd R15: ffff88801cba2660 [ 58.553977][ T5056] FS: 00005555565d5380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 58.562919][ T5056] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.569538][ T5056] CR2: 00007ffc6efcf000 CR3: 0000000028174000 CR4: 00000000003506f0 [ 58.578420][ T5056] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.586521][ T5056] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.595108][ T5056] Call Trace: [ 58.598380][ T5056] [ 58.601420][ T5056] ? __die_body+0x8b/0xe0 [ 58.605765][ T5056] ? die+0xa1/0xd0 [ 58.609774][ T5056] ? do_trap+0x153/0x380 [ 58.620735][ T5056] ? __reiserfs_panic+0x13e/0x140 [ 58.625803][ T5056] ? do_error_trap+0x1dc/0x2c0 [ 58.630636][ T5056] ? __reiserfs_panic+0x13e/0x140 [ 58.636311][ T5056] ? do_int3+0x50/0x50 [ 58.640382][ T5056] ? handle_invalid_op+0x34/0x40 [ 58.645326][ T5056] ? __reiserfs_panic+0x13e/0x140 [ 58.650915][ T5056] ? exc_invalid_op+0x33/0x50 [ 58.655623][ T5056] ? asm_exc_invalid_op+0x1a/0x20 [ 58.660649][ T5056] ? __wake_up_klogd+0xcc/0x100 [ 58.665512][ T5056] ? __reiserfs_panic+0x13e/0x140 [ 58.670537][ T5056] ? reiserfs_debug+0x10/0x10 [ 58.675235][ T5056] reiserfs_update_sd_size+0xfd5/0x10b0 [ 58.680876][ T5056] ? restart_transaction+0x1e0/0x1e0 [ 58.686288][ T5056] ? journal_begin+0x1f3/0x360 [ 58.691073][ T5056] reiserfs_mkdir+0x75c/0x8f0 [ 58.695763][ T5056] ? reiserfs_symlink+0x720/0x720 [ 58.700813][ T5056] ? __down_write_common+0x161/0x200 [ 58.706122][ T5056] ? __up_read+0x690/0x690 [ 58.710605][ T5056] reiserfs_xattr_init+0x323/0x670 [ 58.715733][ T5056] reiserfs_fill_super+0x2207/0x2620 [ 58.721302][ T5056] ? reiserfs_kill_sb+0x150/0x150 [ 58.726508][ T5056] ? __down_write_common+0x161/0x200 [ 58.731989][ T5056] mount_bdev+0x237/0x300 [ 58.736344][ T5056] ? reiserfs_kill_sb+0x150/0x150 [ 58.741437][ T5056] ? get_tree_bdev+0x5b0/0x5b0 [ 58.746220][ T5056] ? vfs_parse_fs_string+0x190/0x230 [ 58.751677][ T5056] ? vfs_parse_fs_param+0x410/0x410 [ 58.756882][ T5056] ? cap_capable+0x1b4/0x240 [ 58.761487][ T5056] legacy_get_tree+0xef/0x190 [ 58.766166][ T5056] ? remove_save_link+0x540/0x540 [ 58.771291][ T5056] vfs_get_tree+0x8c/0x280 [ 58.775727][ T5056] do_new_mount+0x28f/0xae0 [ 58.780326][ T5056] ? do_move_mount_old+0x170/0x170 [ 58.785454][ T5056] __se_sys_mount+0x2d9/0x3c0 [ 58.791545][ T5056] ? __x64_sys_mount+0xc0/0xc0 [ 58.796415][ T5056] ? syscall_enter_from_user_mode+0x32/0x230 [ 58.802500][ T5056] ? __x64_sys_mount+0x20/0xc0 [ 58.807367][ T5056] do_syscall_64+0x44/0x110 [ 58.811989][ T5056] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 58.817921][ T5056] RIP: 0033:0x7f7c589cc8ba [ 58.822452][ T5056] 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 [ 58.842774][ T5056] RSP: 002b:00007ffc6efce918 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 58.851816][ T5056] RAX: ffffffffffffffda RBX: 00007ffc6efce930 RCX: 00007f7c589cc8ba [ 58.860332][ T5056] RDX: 0000000020001100 RSI: 00000000200000c0 RDI: 00007ffc6efce930 [ 58.868402][ T5056] RBP: 0000000000000004 R08: 00007ffc6efce970 R09: 00000000000010f1 [ 58.876650][ T5056] R10: 0000000000800008 R11: 0000000000000286 R12: 0000000000800008 [ 58.884803][ T5056] R13: 00007ffc6efce970 R14: 0000000000000003 R15: 0000000000400000 [ 58.893036][ T5056] [ 58.896082][ T5056] Modules linked in: [ 58.900484][ T5056] ---[ end trace 0000000000000000 ]--- [ 58.906600][ T5056] RIP: 0010:__reiserfs_panic+0x13e/0x140 [ 58.912351][ T5056] Code: c7 c1 e0 68 7c 8b 48 0f 44 c8 48 0f 44 d8 48 c7 c7 a0 69 7c 8b 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 80 73 6f 92 e8 72 bb e0 08 <0f> 0b f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 [ 58.933072][ T5056] RSP: 0018:ffffc90003a2f4e0 EFLAGS: 00010246 [ 58.939251][ T5056] RAX: 00000000000000a6 RBX: ffffffff8b7c21a0 RCX: 92113cf80bb30000 [ 58.948371][ T5056] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 58.957036][ T5056] RBP: ffffc90003a2f5d0 R08: ffffffff8171771c R09: 1ffff92000745e3c [ 58.965522][ T5056] R10: dffffc0000000000 R11: fffff52000745e3d R12: ffffffff8b7c21c0 [ 58.974079][ T5056] R13: ffffc90003a2f500 R14: ffffffff8d13cfbd R15: ffff88801cba2660 [ 58.982132][ T5056] FS: 00005555565d5380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 58.991402][ T5056] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.998151][ T5056] CR2: 00007ffc6efcf000 CR3: 0000000028174000 CR4: 00000000003506f0 [ 59.006344][ T5056] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.014840][ T5056] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.023139][ T5056] Kernel panic - not syncing: Fatal exception [ 59.029531][ T5056] Kernel Offset: disabled [ 59.034248][ T5056] Rebooting in 86400 seconds..