./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor569904499 <...> Warning: Permanently added '10.128.1.16' (ED25519) to the list of known hosts. execve("./syz-executor569904499", ["./syz-executor569904499"], 0x7ffcf2d39240 /* 10 vars */) = 0 brk(NULL) = 0x555557244000 brk(0x555557244d00) = 0x555557244d00 arch_prctl(ARCH_SET_FS, 0x555557244380) = 0 set_tid_address(0x555557244650) = 5020 set_robust_list(0x555557244660, 24) = 0 rseq(0x555557244ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor569904499", 4096) = 27 getrandom("\x8b\x53\xf5\x4c\x03\x1e\x62\x59", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557244d00 brk(0x555557265d00) = 0x555557265d00 brk(0x555557266000) = 0x555557266000 mprotect(0x7f2070a22000, 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) = 0x7f2068553000 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(0x7f2068553000, 2097152) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 69.801666][ T5020] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5020 'syz-executor569' ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file1", 0777) = 0 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 [ 69.846973][ T5020] loop0: detected capacity change from 0 to 4096 [ 69.861627][ T5020] ntfs3: loop0: Different NTFS sector size (2048) and media sector size (512). [ 69.901159][ T5020] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 69.909029][ T5020] #PF: supervisor instruction fetch in kernel mode [ 69.915560][ T5020] #PF: error_code(0x0010) - not-present page [ 69.921556][ T5020] PGD 7ce85067 P4D 7ce85067 PUD 7de36067 PMD 0 [ 69.927840][ T5020] Oops: 0010 [#1] PREEMPT SMP KASAN [ 69.933044][ T5020] CPU: 0 PID: 5020 Comm: syz-executor569 Not tainted 6.5.0-rc4-syzkaller-00009-g4b954598a47b #0 [ 69.943555][ T5020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 69.953714][ T5020] RIP: 0010:0x0 [ 69.957200][ T5020] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 69.964597][ T5020] RSP: 0018:ffffc90003c1f778 EFLAGS: 00010246 [ 69.970703][ T5020] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000 [ 69.978676][ T5020] RDX: ffff88807a700210 RSI: 0000000000000000 RDI: ffff888021486600 [ 69.986650][ T5020] RBP: ffffc90003c1f9b0 R08: ffff88807c3dc000 R09: 0000000000000000 [ 69.994620][ T5020] R10: ffffc90003c1f820 R11: fffff52000783f24 R12: 0000000000000000 [ 70.002620][ T5020] R13: ffff88807a700200 R14: dffffc0000000000 R15: 00000000000000d0 [ 70.010678][ T5020] FS: 0000555557244380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 70.019716][ T5020] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.026307][ T5020] CR2: ffffffffffffffd6 CR3: 000000002adce000 CR4: 00000000003506f0 [ 70.034284][ T5020] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.042248][ T5020] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.050225][ T5020] Call Trace: [ 70.053521][ T5020] [ 70.056457][ T5020] ? __die_body+0x5e/0xa0 [ 70.060823][ T5020] ? page_fault_oops+0x802/0xaa0 [ 70.065781][ T5020] ? kernelmode_fixup_or_oops+0x2a0/0x2a0 [ 70.073015][ T5020] ? rcu_lock_release+0x5/0x30 [ 70.077785][ T5020] ? __lock_acquire+0x7f70/0x7f70 [ 70.082831][ T5020] ? rcu_is_watching+0x15/0xb0 [ 70.087596][ T5020] ? is_errata93+0xc0/0x240 [ 70.092112][ T5020] ? exc_page_fault+0x53a/0x7c0 [ 70.096978][ T5020] ? asm_exc_page_fault+0x26/0x30 [ 70.102017][ T5020] hdr_find_e+0x33e/0x600 [ 70.106355][ T5020] ? indx_find+0xb60/0xb60 [ 70.110785][ T5020] ? fnd_clear+0x276/0x300 [ 70.115212][ T5020] indx_find+0x317/0xb60 [ 70.119460][ T5020] ? indx_read+0xc40/0xc40 [ 70.123879][ T5020] dir_search_u+0x1b7/0x3a0 [ 70.128381][ T5020] ? ntfs_nls_to_utf16+0xc50/0xc50 [ 70.133503][ T5020] ? ntfs_utf16_to_nls+0x730/0x730 [ 70.138624][ T5020] ? ntfs_lookup+0x51/0x1f0 [ 70.143154][ T5020] ntfs_lookup+0x106/0x1f0 [ 70.147585][ T5020] lookup_one_qstr_excl+0x11b/0x250 [ 70.152808][ T5020] do_renameat2+0x650/0x1660 [ 70.157531][ T5020] ? fsnotify_move+0x4f0/0x4f0 [ 70.162323][ T5020] ? __check_object_size+0x4e1/0xa40 [ 70.167646][ T5020] ? getname_flags+0x1f0/0x4e0 [ 70.172434][ T5020] __x64_sys_rename+0x86/0x90 [ 70.177113][ T5020] do_syscall_64+0x41/0xc0 [ 70.181531][ T5020] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 70.187460][ T5020] RIP: 0033:0x7f20709905f9 [ 70.191871][ T5020] 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 [ 70.211558][ T5020] RSP: 002b:00007ffcfe70b878 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [ 70.219970][ T5020] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f20709905f9 [ 70.227940][ T5020] RDX: 00007f207098f8f0 RSI: 00000000200000c0 RDI: 0000000020000040 [ 70.235906][ T5020] RBP: 00007f2070a22610 R08: 000000000001f3d5 R09: 0000000000000000 [ 70.243873][ T5020] R10: 00007ffcfe70b740 R11: 0000000000000246 R12: 0000000000000001 [ 70.251847][ T5020] R13: 00007ffcfe70ba48 R14: 0000000000000001 R15: 0000000000000001 [ 70.259822][ T5020] [ 70.262849][ T5020] Modules linked in: [ 70.266746][ T5020] CR2: 0000000000000000 [ 70.270893][ T5020] ---[ end trace 0000000000000000 ]--- [ 70.276337][ T5020] RIP: 0010:0x0 [ 70.279800][ T5020] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 70.287282][ T5020] RSP: 0018:ffffc90003c1f778 EFLAGS: 00010246 [ 70.293351][ T5020] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000 [ 70.301319][ T5020] RDX: ffff88807a700210 RSI: 0000000000000000 RDI: ffff888021486600 [ 70.309391][ T5020] RBP: ffffc90003c1f9b0 R08: ffff88807c3dc000 R09: 0000000000000000 [ 70.317471][ T5020] R10: ffffc90003c1f820 R11: fffff52000783f24 R12: 0000000000000000 [ 70.325539][ T5020] R13: ffff88807a700200 R14: dffffc0000000000 R15: 00000000000000d0 [ 70.333512][ T5020] FS: 0000555557244380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 70.342448][ T5020] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.349041][ T5020] CR2: ffffffffffffffd6 CR3: 000000002adce000 CR4: 00000000003506f0 [ 70.357023][ T5020] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.365012][ T5020] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.372997][ T5020] Kernel panic - not syncing: Fatal exception [ 70.379370][ T5020] Kernel Offset: disabled [ 70.383705][ T5020] Rebooting in 86400 seconds..