./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor33100346 <...> Warning: Permanently added '10.128.0.235' (ED25519) to the list of known hosts. execve("./syz-executor33100346", ["./syz-executor33100346"], 0x7ffcfd986eb0 /* 10 vars */) = 0 brk(NULL) = 0x555557342000 brk(0x555557342d00) = 0x555557342d00 arch_prctl(ARCH_SET_FS, 0x555557342380) = 0 set_tid_address(0x555557342650) = 5038 set_robust_list(0x555557342660, 24) = 0 rseq(0x555557342ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor33100346", 4096) = 26 getrandom("\xc8\x98\x50\xdd\x56\xc9\x32\x06", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557342d00 brk(0x555557363d00) = 0x555557363d00 brk(0x555557364000) = 0x555557364000 mprotect(0x7f533ba00000, 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) = 0x7f5333531000 write(3, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x08\x01\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x03\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\xff\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x02\x00\x00\x00\xbb\x02\x87\x1c\xc7\xbb\xb3\x5e\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 munmap(0x7f5333531000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file1", 0777) = 0 [ 55.355334][ T5038] syz-executor331[5038]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 55.393295][ T5038] loop0: detected capacity change from 0 to 4096 mount("/dev/loop0", "./file1", "ntfs3", MS_NODEV|MS_SYNCHRONOUS|MS_SILENT|0x200, "") = 0 openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 chdir("./file1") = 0 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 [ 55.405438][ T5038] ntfs3: loop0: Different NTFS sector size (2048) and media sector size (512). [ 55.441337][ T5038] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 55.449171][ T5038] #PF: supervisor instruction fetch in kernel mode [ 55.455712][ T5038] #PF: error_code(0x0010) - not-present page [ 55.461677][ T5038] PGD 7ef1f067 P4D 7ef1f067 PUD 252a8067 PMD 0 [ 55.467943][ T5038] Oops: 0010 [#1] PREEMPT SMP KASAN [ 55.473132][ T5038] CPU: 0 PID: 5038 Comm: syz-executor331 Not tainted 6.6.0-rc5-syzkaller-00234-g8cb1f10d8c4b #0 [ 55.483534][ T5038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 55.493590][ T5038] RIP: 0010:0x0 [ 55.497055][ T5038] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 55.504410][ T5038] RSP: 0018:ffffc90003cbf8b8 EFLAGS: 00010246 [ 55.510463][ T5038] RAX: 0000000000000000 RBX: ffff88802ae26200 RCX: 0000000000000000 [ 55.518418][ T5038] RDX: ffff88802ae26210 RSI: 0000000000000000 RDI: ffff88801c318000 [ 55.526376][ T5038] RBP: 0000000000000000 R08: ffff88807d716000 R09: 0000000000000000 [ 55.534334][ T5038] R10: 0000000000000002 R11: ffffffff81dd5885 R12: 00000000000000d0 [ 55.542379][ T5038] R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000000 [ 55.550336][ T5038] FS: 0000555557342380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 55.559254][ T5038] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.565842][ T5038] CR2: ffffffffffffffd6 CR3: 0000000028cde000 CR4: 0000000000350ef0 [ 55.573803][ T5038] Call Trace: [ 55.577069][ T5038] [ 55.579991][ T5038] ? show_regs+0x8f/0xa0 [ 55.584248][ T5038] ? __die+0x2c/0x80 [ 55.588133][ T5038] ? page_fault_oops+0x398/0xad0 [ 55.593060][ T5038] ? dump_pagetable+0x530/0x530 [ 55.597898][ T5038] ? __lock_acquire+0x250f/0x5de0 [ 55.602919][ T5038] ? mark_lock+0x105/0x1950 [ 55.607411][ T5038] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 55.613383][ T5038] ? do_user_addr_fault+0x53d/0x1000 [ 55.618655][ T5038] ? irqentry_enter+0x2c/0x50 [ 55.623366][ T5038] ? rcu_is_watching+0x12/0xb0 [ 55.628120][ T5038] ? exc_page_fault+0x5c/0xd0 [ 55.632881][ T5038] ? asm_exc_page_fault+0x26/0x30 [ 55.637898][ T5038] ? kasan_set_track+0x25/0x30 [ 55.642661][ T5038] hdr_find_e.isra.0+0x3d7/0x620 [ 55.647629][ T5038] ? bmp_buf_get+0x980/0x980 [ 55.652222][ T5038] ? indx_init+0x7e0/0x7e0 [ 55.656635][ T5038] ? fnd_clear+0x20a/0x330 [ 55.661057][ T5038] indx_find+0x267/0x980 [ 55.665331][ T5038] ? indx_free_children.isra.0+0x6b0/0x6b0 [ 55.671143][ T5038] dir_search_u+0x290/0x3d0 [ 55.675640][ T5038] ? ntfs_nls_to_utf16+0x6e0/0x6e0 [ 55.680743][ T5038] ? rcu_is_watching+0x12/0xb0 [ 55.685503][ T5038] ? kmem_cache_alloc+0x348/0x3b0 [ 55.690527][ T5038] ntfs_lookup+0x1c5/0x2a0 [ 55.694948][ T5038] ? d_alloc+0x1b7/0x220 [ 55.699272][ T5038] lookup_one_qstr_excl+0x116/0x180 [ 55.704471][ T5038] do_renameat2+0x515/0xdc0 [ 55.708978][ T5038] ? __ia32_sys_link+0xa0/0xa0 [ 55.713741][ T5038] ? preempt_count_sub+0x150/0x150 [ 55.718855][ T5038] ? __check_object_size+0x323/0x730 [ 55.724136][ T5038] ? strncpy_from_user+0x214/0x300 [ 55.729243][ T5038] ? getname_flags.part.0+0x1d5/0x4d0 [ 55.734635][ T5038] __x64_sys_rename+0x81/0xa0 [ 55.739311][ T5038] do_syscall_64+0x38/0xb0 [ 55.743719][ T5038] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.749614][ T5038] RIP: 0033:0x7f533b96e5f9 [ 55.754016][ T5038] 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 [ 55.773618][ T5038] RSP: 002b:00007ffe8bb6a298 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [ 55.782025][ T5038] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f533b96e5f9 [ 55.789993][ T5038] RDX: 00007f533b96d8f0 RSI: 00000000200000c0 RDI: 0000000020000040 [ 55.797954][ T5038] RBP: 00007f533ba00610 R08: 000000000001f3d5 R09: 0000000000000000 [ 55.805916][ T5038] R10: 00007ffe8bb6a160 R11: 0000000000000246 R12: 0000000000000001 [ 55.813889][ T5038] R13: 00007ffe8bb6a468 R14: 0000000000000001 R15: 0000000000000001 [ 55.821859][ T5038] [ 55.824860][ T5038] Modules linked in: [ 55.828769][ T5038] CR2: 0000000000000000 [ 55.832906][ T5038] ---[ end trace 0000000000000000 ]--- [ 55.838342][ T5038] RIP: 0010:0x0 [ 55.841795][ T5038] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 55.849140][ T5038] RSP: 0018:ffffc90003cbf8b8 EFLAGS: 00010246 [ 55.855190][ T5038] RAX: 0000000000000000 RBX: ffff88802ae26200 RCX: 0000000000000000 [ 55.863148][ T5038] RDX: ffff88802ae26210 RSI: 0000000000000000 RDI: ffff88801c318000 [ 55.871105][ T5038] RBP: 0000000000000000 R08: ffff88807d716000 R09: 0000000000000000 [ 55.879062][ T5038] R10: 0000000000000002 R11: ffffffff81dd5885 R12: 00000000000000d0 [ 55.887016][ T5038] R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000000 [ 55.894977][ T5038] FS: 0000555557342380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 55.903905][ T5038] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.910478][ T5038] CR2: ffffffffffffffd6 CR3: 0000000028cde000 CR4: 0000000000350ef0 [ 55.918439][ T5038] Kernel panic - not syncing: Fatal exception [ 55.925562][ T5038] Kernel Offset: disabled [ 55.929870][ T5038] Rebooting in 86400 seconds..