./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1294026262 <...> Warning: Permanently added '10.128.1.253' (ED25519) to the list of known hosts. execve("./syz-executor1294026262", ["./syz-executor1294026262"], 0x7fff2fc671d0 /* 10 vars */) = 0 brk(NULL) = 0x5555731d6000 brk(0x5555731d6d00) = 0x5555731d6d00 arch_prctl(ARCH_SET_FS, 0x5555731d6380) = 0 set_tid_address(0x5555731d6650) = 5838 set_robust_list(0x5555731d6660, 24) = 0 rseq(0x5555731d6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1294026262", 4096) = 28 getrandom("\x56\xcb\x80\xb2\x6f\x8d\xc5\xab", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555731d6d00 brk(0x5555731f7d00) = 0x5555731f7d00 brk(0x5555731f8000) = 0x5555731f8000 mprotect(0x7f34d9ffc000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0executing program ) = 0x200001000000 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) = 0x7f34d1a00000 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(0x7f34d1a00000, 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 [ 91.784959][ T5838] loop0: detected capacity change from 0 to 1024 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) mkdir("./file0", 0777) = -1 EEXIST (File exists) mount(NULL, "./file0", 0x200000000000, MS_REMOUNT|MS_MANDLOCK|MS_DIRSYNC|MS_MOVE|MS_REC|MS_POSIXACL|MS_UNBINDABLE|MS_RELATIME|MS_I_VERSION, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 4 chdir("./file0") = 0 [ 91.852662][ T5838] ======================================================= [ 91.852662][ T5838] WARNING: The mand mount option has been deprecated and [ 91.852662][ T5838] and is ignored by this kernel. Remove the mand [ 91.852662][ T5838] option from the mount to silence this warning. [ 91.852662][ T5838] ======================================================= [ 91.915252][ T5838] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] SMP KASAN PTI [ 91.927189][ T5838] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 91.935642][ T5838] CPU: 0 UID: 0 PID: 5838 Comm: syz-executor129 Not tainted 6.16.0-rc7-syzkaller #0 PREEMPT(full) [ 91.946366][ T5838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 91.956456][ T5838] RIP: 0010:hfsplus_rename_cat+0x3b1/0xde0 [ 91.962302][ T5838] Code: 0f b7 84 24 40 01 00 00 66 89 44 24 18 48 8b 9c 24 e0 00 00 00 48 8b 44 24 08 4c 8d 70 40 4c 89 f0 48 c1 e8 03 48 89 44 24 40 <42> 80 3c 20 00 74 08 4c 89 f7 e8 00 81 8c ff 4c 89 74 24 48 45 8b [ 91.981945][ T5838] RSP: 0018:ffffc90003f8f780 EFLAGS: 00010202 [ 91.988019][ T5838] RAX: 0000000000000008 RBX: ffff8881446b6000 RCX: ffff888034908000 [ 91.996012][ T5838] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 92.004087][ T5838] RBP: ffffc90003f8fbb0 R08: 0000000006000200 R09: 6d33a5df14000000 [ 92.012148][ T5838] R10: 6d33a5df14000000 R11: 6d33a5df6d33a5df R12: dffffc0000000000 [ 92.020124][ T5838] R13: 1ffff920007f1efc R14: 0000000000000040 R15: 0000000000000000 [ 92.028098][ T5838] FS: 00005555731d6380(0000) GS:ffff888125c57000(0000) knlGS:0000000000000000 [ 92.037044][ T5838] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.043651][ T5838] CR2: 00005583d5db2a40 CR3: 0000000030fcc000 CR4: 00000000003526f0 [ 92.051744][ T5838] Call Trace: [ 92.055074][ T5838] [ 92.058029][ T5838] ? __pfx_hfsplus_rename_cat+0x10/0x10 [ 92.063728][ T5838] ? chacha_block_generic+0x53/0xc80 [ 92.069038][ T5838] ? __asan_memset+0x22/0x50 [ 92.073651][ T5838] ? put_dec_full8+0x11c/0x2e0 [ 92.078483][ T5838] ? __pfx_sprintf+0x10/0x10 [ 92.083088][ T5838] hfsplus_link+0x359/0x6a0 [ 92.087605][ T5838] ? __pfx_hfsplus_link+0x10/0x10 [ 92.092644][ T5838] ? down_write+0x162/0x1f0 [ 92.097163][ T5838] ? __pfx_down_write+0x10/0x10 [ 92.102024][ T5838] ? try_break_deleg+0x79/0x130 [ 92.106879][ T5838] vfs_link+0x4ed/0x6e0 [ 92.111043][ T5838] do_linkat+0x272/0x560 [ 92.115290][ T5838] ? __pfx_do_linkat+0x10/0x10 [ 92.120079][ T5838] ? strncpy_from_user+0x150/0x290 [ 92.125215][ T5838] ? getname_flags+0x1e5/0x540 [ 92.129990][ T5838] __x64_sys_link+0x82/0x90 [ 92.134501][ T5838] do_syscall_64+0xfa/0x3b0 [ 92.139027][ T5838] ? lockdep_hardirqs_on+0x9c/0x150 [ 92.144230][ T5838] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.150303][ T5838] ? clear_bhb_loop+0x60/0xb0 [ 92.154997][ T5838] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.160893][ T5838] RIP: 0033:0x7f34d9f89839 [ 92.165321][ T5838] 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 [ 92.185039][ T5838] RSP: 002b:00007ffed77f7ad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000056 [ 92.193462][ T5838] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f34d9f89839 [ 92.201462][ T5838] RDX: 00007f34d9f88bb7 RSI: 0000200000000240 RDI: 00002000000001c0 [ 92.209436][ T5838] RBP: 0030656c69662f2e R08: 0000000000000000 R09: 0000000000000000 [ 92.217500][ T5838] R10: 00007ffed77f79a0 R11: 0000000000000246 R12: 0000000000000001 [ 92.225502][ T5838] R13: 00007ffed77f7cb8 R14: 0000000000000001 R15: 0000000000000001 [ 92.233683][ T5838] [ 92.236718][ T5838] Modules linked in: [ 92.240827][ T5838] ---[ end trace 0000000000000000 ]--- [ 92.246421][ T5838] RIP: 0010:hfsplus_rename_cat+0x3b1/0xde0 [ 92.252359][ T5838] Code: 0f b7 84 24 40 01 00 00 66 89 44 24 18 48 8b 9c 24 e0 00 00 00 48 8b 44 24 08 4c 8d 70 40 4c 89 f0 48 c1 e8 03 48 89 44 24 40 <42> 80 3c 20 00 74 08 4c 89 f7 e8 00 81 8c ff 4c 89 74 24 48 45 8b [ 92.272221][ T5838] RSP: 0018:ffffc90003f8f780 EFLAGS: 00010202 [ 92.278333][ T5838] RAX: 0000000000000008 RBX: ffff8881446b6000 RCX: ffff888034908000 [ 92.287135][ T5838] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 92.295359][ T5838] RBP: ffffc90003f8fbb0 R08: 0000000006000200 R09: 6d33a5df14000000 [ 92.304248][ T5838] R10: 6d33a5df14000000 R11: 6d33a5df6d33a5df R12: dffffc0000000000 [ 92.312424][ T5838] R13: 1ffff920007f1efc R14: 0000000000000040 R15: 0000000000000000 [ 92.320458][ T5838] FS: 00005555731d6380(0000) GS:ffff888125c57000(0000) knlGS:0000000000000000 [ 92.329461][ T5838] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.336115][ T5838] CR2: 00005583d5db2a40 CR3: 0000000030fcc000 CR4: 00000000003526f0 [ 92.344153][ T5838] Kernel panic - not syncing: Fatal exception [ 92.350537][ T5838] Kernel Offset: disabled [ 92.354873][ T5838] Rebooting in 86400 seconds..