./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor173196558 <...> Warning: Permanently added '10.128.1.6' (ED25519) to the list of known hosts. execve("./syz-executor173196558", ["./syz-executor173196558"], 0x7ffcc7aa7d30 /* 10 vars */) = 0 brk(NULL) = 0x555580614000 brk(0x555580614d00) = 0x555580614d00 arch_prctl(ARCH_SET_FS, 0x555580614380) = 0 set_tid_address(0x555580614650) = 5227 set_robust_list(0x555580614660, 24) = 0 rseq(0x555580614ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor173196558", 4096) = 27 getrandom("\x92\xd6\xdd\x63\xf2\xeb\x51\x1c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555580614d00 brk(0x555580635d00) = 0x555580635d00 brk(0x555580636000) = 0x555580636000 mprotect(0x7f963fb89000, 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 executing program write(1, "executing program\n", 18) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9637600000 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"..., 524288) = 524288 munmap(0x7f9637600000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file1", 0777) = 0 [ 67.241114][ T5227] loop0: detected capacity change from 0 to 1024 [ 67.264334][ T5227] ======================================================= [ 67.264334][ T5227] WARNING: The mand mount option has been deprecated and [ 67.264334][ T5227] and is ignored by this kernel. Remove the mand mount("/dev/loop0", "./file1", "hfsplus", MS_RDONLY|MS_MANDLOCK|MS_DIRSYNC|MS_RELATIME, "\x74\x79\x70\x65\x3d\x62\x9b\xfe\xaa\x2c\x74\x79\x70\x65\x3d\x75\x69\x9e\x3e\x2c\x66\x6f\x72\x63\x65\x2c\x64\x65\x63\x6f\x6d\x70\x6f\x73\x65\x2c\x66\x6f\x72\x63\x65\x2c\x6e\x6c\x73\x3d\x69\x73\x6f\x38\x38\x35\x39\x2d\x39\x2c") = 0 openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 chdir("./file1") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) mkdir(".", 0777) = -1 EEXIST (File exists) mount(NULL, ".", 0x20000180, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_NOATIME|MS_MOVE|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\xff\xff\x30\x78\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x12\xa4\x09\x5a\x2a\xac\x12\xf0\xbf\xcb\x20\x6d\x98\x2e\x44\x06\x63\x81\x38\x8d\x27\xf1\x40\x02\xd8\xd7\x43\x1d\x39\x47\xf6\x39\x9c\x7f\xf9\xf5\x19\x3f\xc0\x39\x86\x53\xe5\xa6\x7b\xbb\x31\x9f\x02\xbf\x4a\xc6\xf6\xcc\xd5\xac\xbf\xe1\x35\x0c\xc3\xa6\xd2\xd4\x8c\xf6\xc0\x89\xdd\xf6\x71\x71\xff\xb3\xb1\x59\x88\xe7\xb3\x94"...) = 0 openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 000) = 0 [ 67.264334][ T5227] option from the mount to silence this warning. [ 67.264334][ T5227] ======================================================= [ 67.329761][ T5227] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN PTI [ 67.342471][ T5227] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 67.351065][ T5227] CPU: 0 UID: 0 PID: 5227 Comm: syz-executor173 Not tainted 6.12.0-rc3-syzkaller-00044-g2f87d0916ce0 #0 [ 67.362204][ T5227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 67.372457][ T5227] RIP: 0010:hfsplus_rename_cat+0x4b3/0x1090 [ 67.378382][ T5227] Code: 60 42 80 3c 20 00 48 8b 5c 24 20 74 05 e8 85 9f 78 ff 48 8b 94 24 20 01 00 00 48 83 c3 40 48 89 d8 48 c1 e8 03 48 89 44 24 68 <42> 80 3c 20 00 48 89 54 24 08 74 0d 48 89 df e8 59 9f 78 ff 48 8b [ 67.398015][ T5227] RSP: 0018:ffffc90003b97720 EFLAGS: 00010202 [ 67.404094][ T5227] RAX: 0000000000000008 RBX: 0000000000000040 RCX: ffff888076a71e00 [ 67.412066][ T5227] RDX: ffff8880292a9000 RSI: 0000000000000000 RDI: ffffc90003b97840 [ 67.420053][ T5227] RBP: ffffc90003b97b90 R08: ffffffff82834d34 R09: 410b35e319000000 [ 67.428023][ T5227] R10: 410b35e319000000 R11: 410b35e3410b35e3 R12: dffffc0000000000 [ 67.435992][ T5227] R13: ffffc90003b9780c R14: ffffc90003b978a0 R15: 1ffff92000772ef8 [ 67.443970][ T5227] FS: 0000555580614380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 67.452905][ T5227] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.459491][ T5227] CR2: 00005562e23bb0a8 CR3: 00000000768b4000 CR4: 00000000003526f0 [ 67.467469][ T5227] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.475458][ T5227] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.483433][ T5227] Call Trace: [ 67.486720][ T5227] [ 67.489653][ T5227] ? __die_body+0x5f/0xb0 [ 67.494023][ T5227] ? die_addr+0xb0/0xe0 [ 67.498185][ T5227] ? exc_general_protection+0x3dd/0x5d0 [ 67.503752][ T5227] ? asm_exc_general_protection+0x26/0x30 [ 67.509484][ T5227] ? hfsplus_bnode_read+0xf4/0x1e0 [ 67.514604][ T5227] ? hfsplus_rename_cat+0x4b3/0x1090 [ 67.519901][ T5227] ? mark_lock+0x9a/0x360 [ 67.524244][ T5227] ? __pfx_hfsplus_rename_cat+0x10/0x10 [ 67.529801][ T5227] ? number+0xb5e/0xf90 [ 67.533984][ T5227] ? __pfx_sprintf+0x10/0x10 [ 67.538710][ T5227] hfsplus_link+0x3ab/0x800 [ 67.543312][ T5227] ? __pfx_hfsplus_link+0x10/0x10 [ 67.548373][ T5227] ? __pfx_down_write+0x10/0x10 [ 67.553228][ T5227] ? bpf_lsm_inode_link+0x9/0x10 [ 67.558175][ T5227] ? security_inode_link+0xdb/0x350 [ 67.563383][ T5227] vfs_link+0x4f0/0x6e0 [ 67.567555][ T5227] do_linkat+0x555/0x6f0 [ 67.571810][ T5227] ? __pfx_do_linkat+0x10/0x10 [ 67.576588][ T5227] ? strncpy_from_user+0x131/0x250 [ 67.581715][ T5227] ? getname_flags+0x1e3/0x540 [ 67.586486][ T5227] __x64_sys_link+0x82/0x90 [ 67.591004][ T5227] do_syscall_64+0xf3/0x230 [ 67.595512][ T5227] ? clear_bhb_loop+0x35/0x90 [ 67.600206][ T5227] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 67.606112][ T5227] RIP: 0033:0x7f963fb13cb9 [ 67.610547][ T5227] 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 [ 67.630594][ T5227] RSP: 002b:00007ffde5a9fde8 EFLAGS: 00000246 ORIG_RAX: 0000000000000056 [ 67.639016][ T5227] RAX: ffffffffffffffda RBX: 00007f963fb5d05e RCX: 00007f963fb13cb9 [ 67.646993][ T5227] RDX: 0000000000000000 RSI: 0000000020000bc0 RDI: 0000000020001240 [ 67.654971][ T5227] RBP: 00007f963fb89610 R08: 0000000020000000 R09: 0000000020000000 [ 67.662946][ T5227] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 67.670921][ T5227] R13: 00007ffde5a9ffb8 R14: 0000000000000001 R15: 0000000000000001 [ 67.679095][ T5227] [ 67.682123][ T5227] Modules linked in: [ 67.686250][ T5227] ---[ end trace 0000000000000000 ]--- [ 67.691847][ T5227] RIP: 0010:hfsplus_rename_cat+0x4b3/0x1090 [ 67.698021][ T5227] Code: 60 42 80 3c 20 00 48 8b 5c 24 20 74 05 e8 85 9f 78 ff 48 8b 94 24 20 01 00 00 48 83 c3 40 48 89 d8 48 c1 e8 03 48 89 44 24 68 <42> 80 3c 20 00 48 89 54 24 08 74 0d 48 89 df e8 59 9f 78 ff 48 8b [ 67.718679][ T5227] RSP: 0018:ffffc90003b97720 EFLAGS: 00010202 [ 67.724793][ T5227] RAX: 0000000000000008 RBX: 0000000000000040 RCX: ffff888076a71e00 [ 67.732855][ T5227] RDX: ffff8880292a9000 RSI: 0000000000000000 RDI: ffffc90003b97840 [ 67.740931][ T5227] RBP: ffffc90003b97b90 R08: ffffffff82834d34 R09: 410b35e319000000 [ 67.748970][ T5227] R10: 410b35e319000000 R11: 410b35e3410b35e3 R12: dffffc0000000000 [ 67.756999][ T5227] R13: ffffc90003b9780c R14: ffffc90003b978a0 R15: 1ffff92000772ef8 [ 67.764986][ T5227] FS: 0000555580614380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 67.773999][ T5227] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.780641][ T5227] CR2: 00005562e23bb0a8 CR3: 00000000768b4000 CR4: 00000000003526f0 [ 67.788688][ T5227] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.796803][ T5227] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.804788][ T5227] Kernel panic - not syncing: Fatal exception [ 67.811157][ T5227] Kernel Offset: disabled [ 67.815494][ T5227] Rebooting in 86400 seconds..