./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor820053153 <...> Warning: Permanently added '10.128.1.148' (ED25519) to the list of known hosts. execve("./syz-executor820053153", ["./syz-executor820053153"], 0x7fff86b7f0d0 /* 10 vars */) = 0 brk(NULL) = 0x5555660b9000 brk(0x5555660b9d00) = 0x5555660b9d00 arch_prctl(ARCH_SET_FS, 0x5555660b9380) = 0 set_tid_address(0x5555660b9650) = 5076 set_robust_list(0x5555660b9660, 24) = 0 rseq(0x5555660b9ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor820053153", 4096) = 27 getrandom("\x95\xa3\xe7\x8a\x68\x60\x81\x4c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555660b9d00 brk(0x5555660dad00) = 0x5555660dad00 brk(0x5555660db000) = 0x5555660db000 mprotect(0x7f67322ce000, 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) = 0x7f6729e00000 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(0x7f6729e00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("\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", 0777) = 0 [ 71.123199][ T5076] loop0: detected capacity change from 0 to 1024 [ 71.155818][ T5076] ======================================================= [ 71.155818][ T5076] WARNING: The mand mount option has been deprecated and mount("/dev/loop0", "\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", "hfsplus", MS_RDONLY|MS_NOEXEC|MS_MANDLOCK|MS_NODIRATIME|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "force,nls=maccyrillic,nodecompose,part=0x0000000000000003,barrier,part=0x00000000000000ff,uid=0x0000"...) = 0 openat(AT_FDCWD, "\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", O_RDONLY|O_DIRECTORY) = 3 chdir("\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") = 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_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "\x14\x27\x0e\x2d\x25\xcc\xcf\xf0\x78\xb9\x14\x0e\x8a\x1e\x19\xf3\xb4\xc3\xbd\x09\x96\x8d\xd1\x91\x1a\xce\xf2\x43\x21\xd7\x64\xd9\xe1\x17\xda\x79\x06\x3a\x62\xe3\xa5\x92\xfb\x42\xf7\xd9\xdd\xb2\x68\x2b\x4c\x2f\xf5\x80\xe2\x5f\xa8\xef\xfb\xd5\x3a\xcf\xb0\xf8\x70\xbc\x1e\x49\xd0\x1a\x5b\x7f\xf5\x51\x50\xd2\xbf\x3b\x04\x28\x58\xc5\x32\x5c\x2b\x56\x9b\x32\x0c\xd4\x4e\x49\xe2\x46\xcc\x1e\x41\xf0\x4d\x2e"...) = 0 openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 chdir(".") = 0 [ 71.155818][ T5076] and is ignored by this kernel. Remove the mand [ 71.155818][ T5076] option from the mount to silence this warning. [ 71.155818][ T5076] ======================================================= creat("./bus", 000) = 5 [ 71.237371][ T5076] general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN PTI [ 71.249446][ T5076] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 71.257845][ T5076] CPU: 0 PID: 5076 Comm: syz-executor820 Not tainted 6.9.0-rc6-syzkaller-00046-g18daea77cca6 #0 [ 71.268239][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 71.278278][ T5076] RIP: 0010:hfsplus_rename_cat+0x4b3/0x1050 [ 71.284176][ T5076] Code: 60 42 80 3c 20 00 48 8b 5c 24 20 74 05 e8 d5 42 7b 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 a9 42 7b ff 48 8b [ 71.303768][ T5076] RSP: 0018:ffffc90003ce7760 EFLAGS: 00010202 [ 71.309826][ T5076] RAX: 0000000000000008 RBX: 0000000000000040 RCX: ffff88807b659e00 [ 71.317870][ T5076] RDX: ffff88807b643000 RSI: 0000000000000000 RDI: ffffc90003ce7880 [ 71.325829][ T5076] RBP: ffffc90003ce7bd0 R08: ffffffff827c9404 R09: 285d58e219000000 [ 71.333791][ T5076] R10: 285d58e219000000 R11: 285d58e2285d58e2 R12: dffffc0000000000 [ 71.341746][ T5076] R13: ffffc90003ce784c R14: ffffc90003ce78e0 R15: 1ffff9200079cf00 [ 71.349716][ T5076] FS: 00005555660b9380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 71.358636][ T5076] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.365210][ T5076] CR2: 000000000066c7e0 CR3: 0000000024722000 CR4: 00000000003506f0 [ 71.373175][ T5076] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.381133][ T5076] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.389105][ T5076] Call Trace: [ 71.392397][ T5076] [ 71.395322][ T5076] ? __die_body+0x88/0xe0 [ 71.399654][ T5076] ? die_addr+0x108/0x140 [ 71.403972][ T5076] ? exc_general_protection+0x3dd/0x5d0 [ 71.409528][ T5076] ? asm_exc_general_protection+0x26/0x30 [ 71.415243][ T5076] ? hfsplus_bnode_read+0xf4/0x1e0 [ 71.420345][ T5076] ? hfsplus_rename_cat+0x4b3/0x1050 [ 71.425630][ T5076] ? tomoyo_path_perm+0x5ab/0x740 [ 71.430647][ T5076] ? __pfx_hfsplus_rename_cat+0x10/0x10 [ 71.436184][ T5076] ? number+0xb5e/0xf90 [ 71.440345][ T5076] ? hfsplus_unlink+0x161/0x790 [ 71.445186][ T5076] ? hfsplus_unlink+0x214/0x790 [ 71.450023][ T5076] ? __pfx_sprintf+0x10/0x10 [ 71.454603][ T5076] hfsplus_unlink+0x308/0x790 [ 71.459266][ T5076] ? __pfx_smack_inode_unlink+0x10/0x10 [ 71.464807][ T5076] ? __pfx_hfsplus_unlink+0x10/0x10 [ 71.469993][ T5076] ? __down_write_common+0x162/0x200 [ 71.475276][ T5076] ? bpf_lsm_inode_unlink+0x9/0x10 [ 71.480389][ T5076] ? security_inode_unlink+0xd5/0x120 [ 71.485752][ T5076] vfs_unlink+0x365/0x600 [ 71.490076][ T5076] do_unlinkat+0x4ae/0x830 [ 71.494483][ T5076] ? __pfx_do_unlinkat+0x10/0x10 [ 71.499407][ T5076] ? strncpy_from_user+0x1a4/0x2f0 [ 71.504525][ T5076] __x64_sys_unlink+0x49/0x60 [ 71.509188][ T5076] do_syscall_64+0xf5/0x240 [ 71.513678][ T5076] ? clear_bhb_loop+0x35/0x90 [ 71.518343][ T5076] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 71.524222][ T5076] RIP: 0033:0x7f673225ac39 [ 71.528627][ T5076] 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 [ 71.548219][ T5076] RSP: 002b:00007ffdaf32faf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 [ 71.556622][ T5076] RAX: ffffffffffffffda RBX: 00007f67322a304b RCX: 00007f673225ac39 [ 71.564593][ T5076] RDX: 00007f673225ac39 RSI: 00007f6732259fb7 RDI: 00000000200000c0 [ 71.572550][ T5076] RBP: 00007f67322a3055 R08: 0000000020000000 R09: 0000000020000000 [ 71.580508][ T5076] R10: 0000000000000073 R11: 0000000000000246 R12: 0000000000000001 [ 71.588477][ T5076] R13: 00007ffdaf32fcd8 R14: 0000000000000001 R15: 0000000000000001 [ 71.596439][ T5076] [ 71.599442][ T5076] Modules linked in: [ 71.606341][ T5076] ---[ end trace 0000000000000000 ]--- [ 71.611807][ T5076] RIP: 0010:hfsplus_rename_cat+0x4b3/0x1050 [ 71.617761][ T5076] Code: 60 42 80 3c 20 00 48 8b 5c 24 20 74 05 e8 d5 42 7b 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 a9 42 7b ff 48 8b [ 71.637414][ T5076] RSP: 0018:ffffc90003ce7760 EFLAGS: 00010202 [ 71.643474][ T5076] RAX: 0000000000000008 RBX: 0000000000000040 RCX: ffff88807b659e00 [ 71.651496][ T5076] RDX: ffff88807b643000 RSI: 0000000000000000 RDI: ffffc90003ce7880 [ 71.659529][ T5076] RBP: ffffc90003ce7bd0 R08: ffffffff827c9404 R09: 285d58e219000000 [ 71.667543][ T5076] R10: 285d58e219000000 R11: 285d58e2285d58e2 R12: dffffc0000000000 [ 71.675558][ T5076] R13: ffffc90003ce784c R14: ffffc90003ce78e0 R15: 1ffff9200079cf00 [ 71.683527][ T5076] FS: 00005555660b9380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 71.692507][ T5076] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.699278][ T5076] CR2: 000000000066c7e0 CR3: 0000000024722000 CR4: 00000000003506f0 [ 71.707343][ T5076] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.715371][ T5076] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.723378][ T5076] Kernel panic - not syncing: Fatal exception [ 71.729629][ T5076] Kernel Offset: disabled [ 71.733946][ T5076] Rebooting in 86400 seconds..