./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2070339449 <...> Warning: Permanently added '10.128.0.161' (ED25519) to the list of known hosts. execve("./syz-executor2070339449", ["./syz-executor2070339449"], 0x7ffc1c9804e0 /* 10 vars */) = 0 brk(NULL) = 0x555555e74000 brk(0x555555e74d00) = 0x555555e74d00 arch_prctl(ARCH_SET_FS, 0x555555e74380) = 0 set_tid_address(0x555555e74650) = 5065 set_robust_list(0x555555e74660, 24) = 0 rseq(0x555555e74ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2070339449", 4096) = 28 getrandom("\x86\x33\x41\x15\x66\x20\x27\x5f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555e74d00 brk(0x555555e95d00) = 0x555555e95d00 brk(0x555555e96000) = 0x555555e96000 mprotect(0x7fe08e46b000, 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) = 0x7fe085e00000 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(0x7fe085e00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file0", 0777) = 0 mount("/dev/loop0", "./file0", "hfsplus", MS_SILENT|MS_I_VERSION, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 [ 74.202422][ T5065] loop0: detected capacity change from 0 to 1024 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) open("./bus", O_RDWR|O_CREAT|O_NONBLOCK|O_DIRECT|O_NOFOLLOW|O_NOATIME, 000) = 4 [ 74.266121][ T28] audit: type=1800 audit(1709667908.188:2): pid=5065 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor207" name="bus" dev="loop0" ino=26 res=0 errno=0 [ 74.267366][ T5065] ------------[ cut here ]------------ [ 74.292409][ T5065] kernel BUG at fs/hfsplus/xattr.c:175! [ 74.297973][ T5065] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 74.304558][ T5065] CPU: 0 PID: 5065 Comm: syz-executor207 Not tainted 6.8.0-rc7-syzkaller #0 [ 74.313233][ T5065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 74.323287][ T5065] RIP: 0010:__hfsplus_setxattr+0x22c3/0x22d0 [ 74.329307][ T5065] Code: e8 92 99 eb 08 e8 3d e9 17 ff 4c 89 ff 48 c7 c6 00 18 c1 8b e8 be 88 5f ff 90 0f 0b e8 26 e9 17 ff 90 0f 0b e8 1e e9 17 ff 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 [ 74.348928][ T5065] RSP: 0018:ffffc90004297580 EFLAGS: 00010293 [ 74.355010][ T5065] RAX: ffffffff827b8432 RBX: 0000000000010000 RCX: ffff88801ab38000 [ 74.362987][ T5065] RDX: 0000000000000000 RSI: 0000000000010000 RDI: 0000000000000000 [ 74.370965][ T5065] RBP: ffffc90004297a18 R08: ffffffff827b6b53 R09: 1ffff1100432811f [ 74.378949][ T5065] R10: dffffc0000000000 R11: ffffed1004328120 R12: ffff8880219401b0 [ 74.386929][ T5065] R13: dffffc0000000000 R14: ffff888021940870 R15: 0000000000000000 [ 74.394906][ T5065] FS: 0000555555e74380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 74.403836][ T5065] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.410414][ T5065] CR2: 0000565063230db8 CR3: 0000000019f72000 CR4: 0000000000350ef0 [ 74.418388][ T5065] Call Trace: [ 74.421666][ T5065] [ 74.424595][ T5065] ? __die_body+0x8b/0xe0 [ 74.428943][ T5065] ? die+0xcf/0x110 [ 74.432770][ T5065] ? do_trap+0x157/0x390 [ 74.437024][ T5065] ? __hfsplus_setxattr+0x22c3/0x22d0 [ 74.442412][ T5065] ? do_error_trap+0x1dc/0x2c0 [ 74.447193][ T5065] ? __hfsplus_setxattr+0x22c3/0x22d0 [ 74.452582][ T5065] ? __pfx_do_error_trap+0x10/0x10 [ 74.457706][ T5065] ? srso_return_thunk+0x5/0x5f [ 74.462574][ T5065] ? handle_invalid_op+0x34/0x40 [ 74.467518][ T5065] ? __hfsplus_setxattr+0x22c3/0x22d0 [ 74.472903][ T5065] ? exc_invalid_op+0x38/0x50 [ 74.477584][ T5065] ? asm_exc_invalid_op+0x1a/0x20 [ 74.482613][ T5065] ? __hfsplus_setxattr+0x9e3/0x22d0 [ 74.487912][ T5065] ? __hfsplus_setxattr+0x22c2/0x22d0 [ 74.493305][ T5065] ? __hfsplus_setxattr+0x22c3/0x22d0 [ 74.498691][ T5065] ? srso_return_thunk+0x5/0x5f [ 74.503552][ T5065] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 74.509898][ T5065] ? srso_return_thunk+0x5/0x5f [ 74.514758][ T5065] ? __pfx___hfsplus_setxattr+0x10/0x10 [ 74.520327][ T5065] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 74.526241][ T5065] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 74.532581][ T5065] ? stack_trace_save+0x117/0x1d0 [ 74.537617][ T5065] ? srso_return_thunk+0x5/0x5f [ 74.542481][ T5065] ? stack_depot_save_flags+0x37d/0x860 [ 74.548085][ T5065] ? srso_return_thunk+0x5/0x5f [ 74.552939][ T5065] ? __kasan_kmalloc+0x98/0xb0 [ 74.557728][ T5065] ? hfsplus_setxattr+0x68/0xe0 [ 74.562602][ T5065] ? srso_return_thunk+0x5/0x5f [ 74.567458][ T5065] ? kmalloc_trace+0x1d6/0x360 [ 74.572233][ T5065] ? hfsplus_setxattr+0x68/0xe0 [ 74.577103][ T5065] hfsplus_setxattr+0xb0/0xe0 [ 74.581799][ T5065] hfsplus_trusted_setxattr+0x40/0x60 [ 74.587175][ T5065] ? __pfx_hfsplus_trusted_setxattr+0x10/0x10 [ 74.593248][ T5065] __vfs_setxattr+0x46a/0x4a0 [ 74.597944][ T5065] __vfs_setxattr_noperm+0x12e/0x5e0 [ 74.603250][ T5065] vfs_setxattr+0x221/0x430 [ 74.607785][ T5065] ? __pfx_vfs_setxattr+0x10/0x10 [ 74.612818][ T5065] ? __check_object_size+0x8e/0xa00 [ 74.618024][ T5065] ? srso_return_thunk+0x5/0x5f [ 74.622880][ T5065] ? __might_fault+0xc5/0x120 [ 74.627565][ T5065] ? strncpy_from_user+0x1a5/0x2f0 [ 74.632684][ T5065] setxattr+0x25d/0x2f0 [ 74.636843][ T5065] ? __pfx_setxattr+0x10/0x10 [ 74.641542][ T5065] ? sb_start_write+0x110/0x1c0 [ 74.646397][ T5065] ? srso_return_thunk+0x5/0x5f [ 74.651255][ T5065] __se_sys_fsetxattr+0x19d/0x220 [ 74.656298][ T5065] do_syscall_64+0xfb/0x240 [ 74.660825][ T5065] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 74.666739][ T5065] RIP: 0033:0x7fe08e3f7639 [ 74.671158][ T5065] 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 [ 74.690942][ T5065] RSP: 002b:00007ffc8b04f8d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000be [ 74.701190][ T5065] RAX: ffffffffffffffda RBX: 00007ffc8b04faa8 RCX: 00007fe08e3f7639 [ 74.709163][ T5065] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000004 [ 74.717134][ T5065] RBP: 00007fe08e46b610 R08: 0000000000000002 R09: 00007ffc8b04faa8 [ 74.725110][ T5065] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 74.733081][ T5065] R13: 00007ffc8b04fa98 R14: 0000000000000001 R15: 0000000000000001 [ 74.741059][ T5065] [ 74.744073][ T5065] Modules linked in: [ 74.749150][ T5065] ---[ end trace 0000000000000000 ]--- [ 74.754766][ T5065] RIP: 0010:__hfsplus_setxattr+0x22c3/0x22d0 [ 74.760864][ T5065] Code: e8 92 99 eb 08 e8 3d e9 17 ff 4c 89 ff 48 c7 c6 00 18 c1 8b e8 be 88 5f ff 90 0f 0b e8 26 e9 17 ff 90 0f 0b e8 1e e9 17 ff 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 [ 74.780585][ T5065] RSP: 0018:ffffc90004297580 EFLAGS: 00010293 [ 74.786762][ T5065] RAX: ffffffff827b8432 RBX: 0000000000010000 RCX: ffff88801ab38000 [ 74.794824][ T5065] RDX: 0000000000000000 RSI: 0000000000010000 RDI: 0000000000000000 [ 74.802863][ T5065] RBP: ffffc90004297a18 R08: ffffffff827b6b53 R09: 1ffff1100432811f [ 74.810842][ T5065] R10: dffffc0000000000 R11: ffffed1004328120 R12: ffff8880219401b0 [ 74.818876][ T5065] R13: dffffc0000000000 R14: ffff888021940870 R15: 0000000000000000 [ 74.826884][ T5065] FS: 0000555555e74380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 74.835935][ T5065] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.842586][ T5065] CR2: 0000565063230db8 CR3: 0000000019f72000 CR4: 0000000000350ef0 [ 74.850565][ T5065] Kernel panic - not syncing: Fatal exception [ 74.856902][ T5065] Kernel Offset: disabled [ 74.861220][ T5065] Rebooting in 86400 seconds..