./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2462507494 <...> Warning: Permanently added '10.128.0.75' (ED25519) to the list of known hosts. execve("./syz-executor2462507494", ["./syz-executor2462507494"], 0x7ffd9e322a60 /* 10 vars */) = 0 brk(NULL) = 0x5555918fd000 brk(0x5555918fdd00) = 0x5555918fdd00 arch_prctl(ARCH_SET_FS, 0x5555918fd380) = 0 set_tid_address(0x5555918fd650) = 5828 set_robust_list(0x5555918fd660, 24) = 0 rseq(0x5555918fdca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2462507494", 4096) = 28 getrandom("\x55\xfb\x27\xfb\xbe\x3f\x9c\x85", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555918fdd00 brk(0x55559191ed00) = 0x55559191ed00 brk(0x55559191f000) = 0x55559191f000 mprotect(0x7f5f8594c000, 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 write(1, "executing program\n", 18executing program ) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5f7d400000 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(0x7f5f7d400000, 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_RDONLY, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) mkdir("./file0", 0777) = -1 EEXIST (File exists) [ 58.581476][ T5828] loop0: detected capacity change from 0 to 1024 mount(NULL, "./file0", 0x20000700, MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_MANDLOCK|MS_REC|MS_PRIVATE|MS_SLAVE|MS_STRICTATIME|MS_LAZYTIME, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 4 chdir("./file0") = 0 mkdir("./control", 0574) = 0 open("./control/file0", O_RDONLY|O_CREAT|O_CLOEXEC, 000) = 5 [ 58.629131][ T5828] ======================================================= [ 58.629131][ T5828] WARNING: The mand mount option has been deprecated and [ 58.629131][ T5828] and is ignored by this kernel. Remove the mand [ 58.629131][ T5828] option from the mount to silence this warning. [ 58.629131][ T5828] ======================================================= [ 58.694171][ T5828] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN PTI [ 58.706801][ T5828] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 58.715230][ T5828] CPU: 0 UID: 0 PID: 5828 Comm: syz-executor246 Not tainted 6.12.0-rc6-syzkaller-00099-g7758b206117d #0 [ 58.726414][ T5828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 58.736463][ T5828] RIP: 0010:hfsplus_rename_cat+0x4b3/0x1090 [ 58.742370][ T5828] Code: 60 42 80 3c 20 00 48 8b 5c 24 20 74 05 e8 25 99 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 f9 98 78 ff 48 8b [ 58.761978][ T5828] RSP: 0018:ffffc90003d27760 EFLAGS: 00010202 [ 58.768034][ T5828] RAX: 0000000000000008 RBX: 0000000000000040 RCX: ffff88807eb58000 [ 58.775987][ T5828] RDX: ffff88814b008000 RSI: 0000000000000000 RDI: ffffc90003d27880 [ 58.783946][ T5828] RBP: ffffc90003d27bd0 R08: ffffffff82835934 R09: 97b251e31a000000 [ 58.791898][ T5828] R10: 97b251e31a000000 R11: 97b251e397b251e3 R12: dffffc0000000000 [ 58.799848][ T5828] R13: ffffc90003d2784c R14: ffffc90003d278e0 R15: 1ffff920007a4f00 [ 58.808062][ T5828] FS: 00005555918fd380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 58.816973][ T5828] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.823538][ T5828] CR2: 0000564b8c005670 CR3: 0000000072b00000 CR4: 00000000003526f0 [ 58.831492][ T5828] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.839446][ T5828] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.847401][ T5828] Call Trace: [ 58.850665][ T5828] [ 58.853600][ T5828] ? __die_body+0x5f/0xb0 [ 58.857917][ T5828] ? die_addr+0xb0/0xe0 [ 58.862058][ T5828] ? exc_general_protection+0x3dd/0x5d0 [ 58.867602][ T5828] ? asm_exc_general_protection+0x26/0x30 [ 58.873305][ T5828] ? hfsplus_bnode_read+0xf4/0x1e0 [ 58.878403][ T5828] ? hfsplus_rename_cat+0x4b3/0x1090 [ 58.883674][ T5828] ? __pfx_hfsplus_rename_cat+0x10/0x10 [ 58.889207][ T5828] ? number+0xb5e/0xf90 [ 58.893379][ T5828] ? hfsplus_unlink+0x161/0x790 [ 58.898217][ T5828] ? hfsplus_unlink+0x214/0x790 [ 58.903050][ T5828] ? __pfx_sprintf+0x10/0x10 [ 58.907626][ T5828] hfsplus_unlink+0x308/0x790 [ 58.912285][ T5828] ? __pfx_smack_inode_unlink+0x10/0x10 [ 58.917814][ T5828] ? __pfx_hfsplus_unlink+0x10/0x10 [ 58.922995][ T5828] ? down_write+0x18c/0x220 [ 58.927483][ T5828] ? bpf_lsm_inode_unlink+0x9/0x10 [ 58.932577][ T5828] ? security_inode_unlink+0xd9/0x340 [ 58.937939][ T5828] vfs_unlink+0x365/0x650 [ 58.942277][ T5828] do_unlinkat+0x4ae/0x830 [ 58.946687][ T5828] ? __pfx_do_unlinkat+0x10/0x10 [ 58.951606][ T5828] ? __might_fault+0xaa/0x120 [ 58.956269][ T5828] ? __might_fault+0xc6/0x120 [ 58.960953][ T5828] ? strncpy_from_user+0x13a/0x260 [ 58.966072][ T5828] ? getname_flags+0x1e3/0x540 [ 58.970825][ T5828] __x64_sys_unlink+0x47/0x50 [ 58.975502][ T5828] do_syscall_64+0xf3/0x230 [ 58.979991][ T5828] ? clear_bhb_loop+0x35/0x90 [ 58.984656][ T5828] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.990559][ T5828] RIP: 0033:0x7f5f858d97b9 [ 58.994970][ T5828] 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 [ 59.014560][ T5828] RSP: 002b:00007fff7fe9bdb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 [ 59.022979][ T5828] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f5f858d97b9 [ 59.030934][ T5828] RDX: 00007f5f858d97b9 RSI: 0000000000000000 RDI: 00000000200001c0 [ 59.038889][ T5828] RBP: 00007f5f8594c610 R08: 0000000000000000 R09: 0000000000000000 [ 59.046840][ T5828] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 59.054819][ T5828] R13: 00007fff7fe9bf88 R14: 0000000000000001 R15: 0000000000000001 [ 59.062776][ T5828] [ 59.065778][ T5828] Modules linked in: [ 59.069836][ T5828] ---[ end trace 0000000000000000 ]--- [ 59.075387][ T5828] RIP: 0010:hfsplus_rename_cat+0x4b3/0x1090 [ 59.081842][ T5828] Code: 60 42 80 3c 20 00 48 8b 5c 24 20 74 05 e8 25 99 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 f9 98 78 ff 48 8b [ 59.101551][ T5828] RSP: 0018:ffffc90003d27760 EFLAGS: 00010202 [ 59.107695][ T5828] RAX: 0000000000000008 RBX: 0000000000000040 RCX: ffff88807eb58000 [ 59.115712][ T5828] RDX: ffff88814b008000 RSI: 0000000000000000 RDI: ffffc90003d27880 [ 59.123751][ T5828] RBP: ffffc90003d27bd0 R08: ffffffff82835934 R09: 97b251e31a000000 [ 59.131733][ T5828] R10: 97b251e31a000000 R11: 97b251e397b251e3 R12: dffffc0000000000 [ 59.139771][ T5828] R13: ffffc90003d2784c R14: ffffc90003d278e0 R15: 1ffff920007a4f00 [ 59.147897][ T5828] FS: 00005555918fd380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 59.156878][ T5828] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.163560][ T5828] CR2: 000000000066c7e0 CR3: 0000000072b00000 CR4: 00000000003526f0 [ 59.171573][ T5828] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.179611][ T5828] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.187615][ T5828] Kernel panic - not syncing: Fatal exception [ 59.193933][ T5828] Kernel Offset: disabled [ 59.198246][ T5828] Rebooting in 86400 seconds..