./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor40607218 <...> Warning: Permanently added '10.128.0.159' (ECDSA) to the list of known hosts. execve("./syz-executor40607218", ["./syz-executor40607218"], 0x7fff1fab0cc0 /* 10 vars */) = 0 brk(NULL) = 0x555555d45000 brk(0x555555d45c40) = 0x555555d45c40 arch_prctl(ARCH_SET_FS, 0x555555d45300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor40607218", 4096) = 26 brk(0x555555d66c40) = 0x555555d66c40 brk(0x555555d67000) = 0x555555d67000 mprotect(0x7f13e30fa000, 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) = 0x7f13dac40000 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(0x7f13dac40000, 4194304) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0", 0777) = 0 syzkaller login: [ 55.311374][ T5067] loop0: detected capacity change from 0 to 8192 [ 55.322471][ T5067] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 55.335554][ T5067] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 55.344902][ T5067] REISERFS (device loop0): using ordered data mode [ 55.351463][ T5067] reiserfs: using flush barriers [ 55.357407][ T5067] 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 [ 55.373974][ T5067] REISERFS (device loop0): checking transaction log (loop0) [ 55.383504][ T5067] REISERFS (device loop0): Using r5 hash to sort names [ 55.391154][ T5067] REISERFS panic (device loop0): vs-13065 update_stat_data: key [1 2 0x0 DIRECT], found item *3.6* [1 2 0x0 DIRECT], item_len 44, item_location 4052, free_space(entry_count) 0 [ 55.408775][ T5067] ------------[ cut here ]------------ [ 55.414398][ T5067] kernel BUG at fs/reiserfs/prints.c:390! [ 55.420134][ T5067] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 55.426179][ T5067] CPU: 0 PID: 5067 Comm: syz-executor406 Not tainted 6.1.0-syzkaller-13031-g77856d911a8c #0 [ 55.436217][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 55.446250][ T5067] RIP: 0010:__reiserfs_panic+0x12f/0x140 [ 55.451880][ T5067] Code: 80 4d 03 8b 48 0f 44 c8 48 0f 44 d8 48 c7 c7 40 4e 03 8b 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 40 d6 15 92 31 c0 e8 41 3e 72 08 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41 [ 55.471467][ T5067] RSP: 0018:ffffc90003b1f560 EFLAGS: 00010246 [ 55.477521][ T5067] RAX: 00000000000000ad RBX: ffffffff8b02f3a0 RCX: 13eb6dc0ca851900 [ 55.485490][ T5067] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 55.493447][ T5067] RBP: ffffc90003b1f650 R08: ffffffff816f29ad R09: fffff52000763e25 [ 55.501400][ T5067] R10: fffff52000763e25 R11: 1ffff92000763e24 R12: ffffffff8b02f3c0 [ 55.509351][ T5067] R13: ffffc90003b1f580 R14: ffffffff8cc6e3d9 R15: ffff88802b39a6a8 [ 55.517302][ T5067] FS: 0000555555d45300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 55.526233][ T5067] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.532795][ T5067] CR2: 00007fd11fff5a70 CR3: 000000007d5eb000 CR4: 00000000003506f0 [ 55.540748][ T5067] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.548698][ T5067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.556647][ T5067] Call Trace: [ 55.559909][ T5067] [ 55.562822][ T5067] ? reiserfs_debug+0x10/0x10 [ 55.567487][ T5067] reiserfs_update_sd_size+0xfc6/0x10a0 [ 55.573020][ T5067] ? restart_transaction+0x1d0/0x1d0 [ 55.578291][ T5067] ? journal_begin+0x1f1/0x350 [ 55.583039][ T5067] reiserfs_mkdir+0x723/0x8c0 [ 55.587699][ T5067] ? reiserfs_symlink+0x740/0x740 [ 55.592710][ T5067] ? down_write+0x1a5/0x270 [ 55.597200][ T5067] ? down_read_killable+0x80/0x80 [ 55.602205][ T5067] ? __up_read+0x690/0x690 [ 55.606604][ T5067] reiserfs_xattr_init+0x34b/0x730 [ 55.611698][ T5067] reiserfs_fill_super+0x20b5/0x24a0 [ 55.616967][ T5067] ? reiserfs_kill_sb+0x150/0x150 [ 55.621978][ T5067] ? snprintf+0xc0/0x110 [ 55.626211][ T5067] ? sb_set_blocksize+0x95/0xf0 [ 55.631044][ T5067] mount_bdev+0x26c/0x3a0 [ 55.635358][ T5067] ? reiserfs_kill_sb+0x150/0x150 [ 55.640363][ T5067] legacy_get_tree+0xea/0x180 [ 55.645022][ T5067] ? remove_save_link+0x4a0/0x4a0 [ 55.650026][ T5067] vfs_get_tree+0x88/0x270 [ 55.654422][ T5067] do_new_mount+0x289/0xad0 [ 55.658912][ T5067] ? do_move_mount_old+0x150/0x150 [ 55.664001][ T5067] ? user_path_at_empty+0x149/0x1a0 [ 55.669187][ T5067] __se_sys_mount+0x2d3/0x3c0 [ 55.673844][ T5067] ? __x64_sys_mount+0xc0/0xc0 [ 55.678585][ T5067] ? syscall_enter_from_user_mode+0x2e/0x1d0 [ 55.684550][ T5067] ? __x64_sys_mount+0x1c/0xc0 [ 55.689293][ T5067] do_syscall_64+0x3d/0xb0 [ 55.693694][ T5067] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.699567][ T5067] RIP: 0033:0x7f13e308daea [ 55.703965][ T5067] Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 55.723550][ T5067] RSP: 002b:00007ffe033aa0a8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 55.731944][ T5067] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f13e308daea [ 55.739895][ T5067] RDX: 0000000020000000 RSI: 0000000020000040 RDI: 00007ffe033aa0c0 [ 55.747847][ T5067] RBP: 00007ffe033aa0c0 R08: 00007ffe033aa100 R09: 0000000000001105 [ 55.755799][ T5067] R10: 0000000000208000 R11: 0000000000000286 R12: 0000000000000004 [ 55.763752][ T5067] R13: 0000555555d452c0 R14: 0000000000208000 R15: 00007ffe033aa100 [ 55.771706][ T5067] [ 55.774721][ T5067] Modules linked in: [ 55.778784][ T5067] ---[ end trace 0000000000000000 ]--- [ 55.784484][ T5067] RIP: 0010:__reiserfs_panic+0x12f/0x140 [ 55.790143][ T5067] Code: 80 4d 03 8b 48 0f 44 c8 48 0f 44 d8 48 c7 c7 40 4e 03 8b 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 40 d6 15 92 31 c0 e8 41 3e 72 08 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41 [ 55.809836][ T5067] RSP: 0018:ffffc90003b1f560 EFLAGS: 00010246 [ 55.815951][ T5067] RAX: 00000000000000ad RBX: ffffffff8b02f3a0 RCX: 13eb6dc0ca851900 [ 55.823967][ T5067] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 55.831956][ T5067] RBP: ffffc90003b1f650 R08: ffffffff816f29ad R09: fffff52000763e25 [ 55.839914][ T5067] R10: fffff52000763e25 R11: 1ffff92000763e24 R12: ffffffff8b02f3c0 [ 55.847912][ T5067] R13: ffffc90003b1f580 R14: ffffffff8cc6e3d9 R15: ffff88802b39a6a8 [ 55.855952][ T5067] FS: 0000555555d45300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 55.864929][ T5067] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.871545][ T5067] CR2: 000055ce843f1078 CR3: 000000007d5eb000 CR4: 00000000003506e0 [ 55.879522][ T5067] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.887538][ T5067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.895666][ T5067] Kernel panic - not syncing: Fatal exception [ 55.901899][ T5067] Kernel Offset: disabled [ 55.906212][ T5067] Rebooting in 86400 seconds..