./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor877061770 <...> Warning: Permanently added '10.128.0.57' (ED25519) to the list of known hosts. execve("./syz-executor877061770", ["./syz-executor877061770"], 0x7ffdd50a7ea0 /* 10 vars */) = 0 brk(NULL) = 0x555555bd1000 brk(0x555555bd1d00) = 0x555555bd1d00 arch_prctl(ARCH_SET_FS, 0x555555bd1380) = 0 set_tid_address(0x555555bd1650) = 5069 set_robust_list(0x555555bd1660, 24) = 0 rseq(0x555555bd1ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor877061770", 4096) = 27 getrandom("\x9d\x29\xa8\xdf\xb1\x8f\x90\x4a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555bd1d00 brk(0x555555bf2d00) = 0x555555bf2d00 brk(0x555555bf3000) = 0x555555bf3000 mprotect(0x7fa96f5d3000, 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) = 0x7fa967122000 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(0x7fa967122000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0", 0777) = 0 [ 55.840984][ T5069] loop0: detected capacity change from 0 to 8192 [ 55.852801][ T5069] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 55.865835][ T5069] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 55.875162][ T5069] REISERFS (device loop0): using ordered data mode [ 55.881686][ T5069] reiserfs: using flush barriers mount("/dev/loop0", "./file0", "reiserfs", MS_NODEV|MS_NOEXEC|MS_SILENT, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 creat("./bus", 000) = 4 creat("./bus", 000) = 5 open(".", O_RDONLY) = 6 mkdirat(6, "\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", 000) = 0 writev(5, [{iov_base="D", iov_len=1}], 1) = 1 writev(4, [{iov_base="\x44\x2f\x62\x75\x73\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\x2e\x2f\x66\x69\x6c\x65\x30\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"..., iov_len=3976}, {iov_base=NULL, iov_len=142606336}], 2) = 3976 [ 55.887640][ T5069] 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 [ 55.904369][ T5069] REISERFS (device loop0): checking transaction log (loop0) [ 55.913274][ T5069] REISERFS (device loop0): Using tea hash to sort names [ 55.921012][ T5069] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 55.961871][ T5069] REISERFS warning: reiserfs-5093 is_leaf: item entry count seems wrong *3.5*[2 4106499 0(1) DIR], item_len 35, item_location 3757, free_space(entry_count) 2 [ 55.978144][ T5069] REISERFS error (device loop0): vs-5150 search_by_key: invalid format found in block 532. Fsck? [ 55.988899][ T5069] REISERFS (device loop0): Remounting filesystem read-only [ 55.996112][ T5069] general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN [ 56.007801][ T5069] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 56.016188][ T5069] CPU: 1 PID: 5069 Comm: syz-executor877 Not tainted 6.7.0-rc8-syzkaller-00024-gac865f00af29 #0 [ 56.026573][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 56.036613][ T5069] RIP: 0010:direct2indirect+0x817/0x10f0 [ 56.042254][ T5069] Code: e5 06 00 00 4c 89 e2 49 63 44 24 08 48 c1 ea 03 80 3c 1a 00 0f 85 d9 06 00 00 4d 8b 24 24 49 8d 7c 24 28 48 89 fa 48 c1 ea 03 <80> 3c 1a 00 0f 85 d5 06 00 00 48 8d 54 40 03 49 8b 44 24 28 4c 8d [ 56.061847][ T5069] RSP: 0018:ffffc90003c1f340 EFLAGS: 00010216 [ 56.067901][ T5069] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff822a4860 [ 56.075861][ T5069] RDX: 0000000000000005 RSI: ffffffff822a486f RDI: 0000000000000028 [ 56.083820][ T5069] RBP: ffffc90003c1f4d0 R08: 0000000000000005 R09: 0000000000000001 [ 56.091780][ T5069] R10: 00000000fffffffe R11: 0000000000000001 R12: 0000000000000000 [ 56.099737][ T5069] R13: ffff888076138ed0 R14: 0000000000000001 R15: ffffc90003c1f740 [ 56.107700][ T5069] FS: 0000555555bd1380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 56.116622][ T5069] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.123201][ T5069] CR2: 00005633b1548ff0 CR3: 0000000076b85000 CR4: 0000000000350ef0 [ 56.131168][ T5069] Call Trace: [ 56.134440][ T5069] [ 56.137365][ T5069] ? show_regs+0x8f/0xa0 [ 56.141610][ T5069] ? die_addr+0x4f/0xd0 [ 56.145762][ T5069] ? exc_general_protection+0x155/0x230 [ 56.151329][ T5069] ? asm_exc_general_protection+0x26/0x30 [ 56.157048][ T5069] ? direct2indirect+0x7a0/0x10f0 [ 56.162066][ T5069] ? direct2indirect+0x7af/0x10f0 [ 56.167081][ T5069] ? direct2indirect+0x817/0x10f0 [ 56.172103][ T5069] ? r5_hash+0xd0/0xd0 [ 56.176166][ T5069] ? journal_begin+0x215/0x400 [ 56.180923][ T5069] reiserfs_get_block+0x3a6e/0x4570 [ 56.186125][ T5069] ? reiserfs_commit_write+0x700/0x700 [ 56.191582][ T5069] ? mark_lock+0xb5/0xc50 [ 56.195908][ T5069] ? print_usage_bug.part.0+0x550/0x550 [ 56.201455][ T5069] ? filemap_get_entry+0x239/0x460 [ 56.206562][ T5069] ? folio_flags.constprop.0+0x56/0x150 [ 56.212096][ T5069] ? reiserfs_commit_write+0x700/0x700 [ 56.217551][ T5069] __block_write_begin_int+0x3c0/0x1560 [ 56.223092][ T5069] ? reiserfs_commit_write+0x700/0x700 [ 56.228553][ T5069] ? invalidate_bh_lrus_cpu+0x170/0x170 [ 56.234094][ T5069] reiserfs_write_begin+0x350/0x7d0 [ 56.239290][ T5069] generic_perform_write+0x278/0x600 [ 56.244577][ T5069] ? folio_add_wait_queue+0x1c0/0x1c0 [ 56.249942][ T5069] ? generic_write_checks+0x2b0/0x3f0 [ 56.255315][ T5069] __generic_file_write_iter+0x1f9/0x240 [ 56.260942][ T5069] generic_file_write_iter+0xe3/0x350 [ 56.266301][ T5069] ? hlock_class+0x4e/0x130 [ 56.270799][ T5069] do_iter_readv_writev+0x21e/0x3c0 [ 56.275987][ T5069] ? generic_copy_file_range+0x1d0/0x1d0 [ 56.281608][ T5069] ? bpf_lsm_file_permission+0x9/0x10 [ 56.286969][ T5069] ? security_file_permission+0x94/0x100 [ 56.292594][ T5069] do_iter_write+0x17f/0x7f0 [ 56.297183][ T5069] vfs_writev+0x221/0x700 [ 56.301505][ T5069] ? vfs_iter_write+0xb0/0xb0 [ 56.306171][ T5069] ? do_raw_spin_lock+0x12e/0x2b0 [ 56.311182][ T5069] ? spin_bug+0x1d0/0x1d0 [ 56.315495][ T5069] ? cgroup_update_frozen+0x144/0x6b0 [ 56.320871][ T5069] ? recalc_sigpending_tsk+0x187/0x1d0 [ 56.326326][ T5069] ? reacquire_held_locks+0x4c0/0x4c0 [ 56.331697][ T5069] ? do_writev+0x137/0x370 [ 56.336104][ T5069] do_writev+0x137/0x370 [ 56.340334][ T5069] ? vfs_writev+0x700/0x700 [ 56.344821][ T5069] ? syscall_trace_enter.constprop.0+0xaf/0x1e0 [ 56.351055][ T5069] do_syscall_64+0x40/0x110 [ 56.355559][ T5069] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 56.361452][ T5069] RIP: 0033:0x7fa96f55f7b9 [ 56.365852][ T5069] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 56.385452][ T5069] RSP: 002b:00007ffe8ad7d768 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 56.393859][ T5069] RAX: ffffffffffffffda RBX: 00007ffe8ad7d938 RCX: 00007fa96f55f7b9 [ 56.401820][ T5069] RDX: 0000000000000002 RSI: 00000000200013c0 RDI: 0000000000000004 [ 56.409781][ T5069] RBP: 00007fa96f5d3610 R08: 00007ffe8ad7d938 R09: 00007ffe8ad7d938 [ 56.417734][ T5069] R10: 00007ffe8ad7d938 R11: 0000000000000246 R12: 0000000000000001 [ 56.425690][ T5069] R13: 00007ffe8ad7d928 R14: 0000000000000001 R15: 0000000000000001 [ 56.433651][ T5069] [ 56.436653][ T5069] Modules linked in: [ 56.440691][ T5069] ---[ end trace 0000000000000000 ]--- [ 56.446168][ T5069] RIP: 0010:direct2indirect+0x817/0x10f0 [ 56.451858][ T5069] Code: e5 06 00 00 4c 89 e2 49 63 44 24 08 48 c1 ea 03 80 3c 1a 00 0f 85 d9 06 00 00 4d 8b 24 24 49 8d 7c 24 28 48 89 fa 48 c1 ea 03 <80> 3c 1a 00 0f 85 d5 06 00 00 48 8d 54 40 03 49 8b 44 24 28 4c 8d [ 56.471528][ T5069] RSP: 0018:ffffc90003c1f340 EFLAGS: 00010216 [ 56.477597][ T5069] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff822a4860 [ 56.485595][ T5069] RDX: 0000000000000005 RSI: ffffffff822a486f RDI: 0000000000000028 [ 56.493607][ T5069] RBP: ffffc90003c1f4d0 R08: 0000000000000005 R09: 0000000000000001 [ 56.501603][ T5069] R10: 00000000fffffffe R11: 0000000000000001 R12: 0000000000000000 [ 56.509598][ T5069] R13: ffff888076138ed0 R14: 0000000000000001 R15: ffffc90003c1f740 [ 56.517552][ T5069] FS: 0000555555bd1380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 56.526498][ T5069] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.533121][ T5069] CR2: 0000000000000000 CR3: 0000000076b85000 CR4: 0000000000350ef0 [ 56.541125][ T5069] Kernel panic - not syncing: Fatal exception [ 56.547429][ T5069] Kernel Offset: disabled [ 56.551735][ T5069] Rebooting in 86400 seconds..