./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4294073405 <...> Warning: Permanently added '10.128.0.122' (ED25519) to the list of known hosts. execve("./syz-executor4294073405", ["./syz-executor4294073405"], 0x7ffcc1bc5c30 /* 10 vars */) = 0 brk(NULL) = 0x55556c012000 brk(0x55556c012d00) = 0x55556c012d00 arch_prctl(ARCH_SET_FS, 0x55556c012380) = 0 set_tid_address(0x55556c012650) = 5046 set_robust_list(0x55556c012660, 24) = 0 rseq(0x55556c012ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4294073405", 4096) = 28 getrandom("\xb3\xb0\x64\x44\x42\x88\x84\x04", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556c012d00 brk(0x55556c033d00) = 0x55556c033d00 brk(0x55556c034000) = 0x55556c034000 mprotect(0x7fcbd0a0f000, 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 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5047 attached , child_tidptr=0x55556c012650) = 5047 [pid 5047] set_robust_list(0x55556c012660, 24) = 0 [pid 5047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5047] setpgid(0, 0) = 0 [pid 5047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5047] write(3, "1000", 4) = 4 [pid 5047] close(3) = 0 [pid 5047] memfd_create("syzkaller", 0) = 3 [pid 5047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcbc8400000 [pid 5047] 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 [pid 5047] munmap(0x7fcbc8400000, 138412032) = 0 [pid 5047] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5047] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5047] close(3) = 0 [pid 5047] close(4) = 0 [pid 5047] mkdir("./file0", 0777) = 0 [ 158.052583][ T5047] loop0: detected capacity change from 0 to 1024 [pid 5047] mount("/dev/loop0", "./file0", "hfsplus", MS_SYNCHRONOUS|MS_NODIRATIME|MS_REC, "") = 0 [pid 5047] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5047] chdir("./file0") = 0 [pid 5047] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5047] lsetxattr("./file0", "security.capability", NULL, 0, 0) = 0 [ 158.097569][ T5047] ===================================================== [ 158.104884][ T5047] BUG: KMSAN: uninit-value in sized_strscpy+0xc4/0x160 [ 158.112208][ T5047] sized_strscpy+0xc4/0x160 [ 158.116931][ T5047] copy_name+0x2af/0x320 [ 158.121440][ T5047] hfsplus_listxattr+0x11e9/0x1a50 [ 158.126774][ T5047] listxattr+0x1f3/0x6b0 [ 158.131282][ T5047] __x64_sys_listxattr+0x16b/0x2f0 [ 158.136626][ T5047] x64_sys_call+0x2ba0/0x3b50 [ 158.141653][ T5047] do_syscall_64+0xcf/0x1e0 [ 158.146380][ T5047] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 158.152644][ T5047] [ 158.155069][ T5047] Uninit was created at: [ 158.159534][ T5047] kmalloc_trace+0x57b/0xbe0 [ 158.164434][ T5047] hfsplus_listxattr+0x4cc/0x1a50 [ 158.169669][ T5047] listxattr+0x1f3/0x6b0 [ 158.174284][ T5047] __x64_sys_listxattr+0x16b/0x2f0 [ 158.179636][ T5047] x64_sys_call+0x2ba0/0x3b50 [ 158.184650][ T5047] do_syscall_64+0xcf/0x1e0 [ 158.189356][ T5047] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 158.195593][ T5047] [ 158.198024][ T5047] CPU: 0 PID: 5047 Comm: syz-executor429 Not tainted 6.9.0-syzkaller-01768-ga5131c3fdf26 #0 [ 158.208588][ T5047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 158.218897][ T5047] ===================================================== [ 158.226129][ T5047] Disabling lock debugging due to kernel taint [ 158.232576][ T5047] Kernel panic - not syncing: kmsan.panic set ... [ 158.239123][ T5047] CPU: 0 PID: 5047 Comm: syz-executor429 Tainted: G B 6.9.0-syzkaller-01768-ga5131c3fdf26 #0 [ 158.250871][ T5047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 158.261090][ T5047] Call Trace: [ 158.264492][ T5047] [ 158.267544][ T5047] dump_stack_lvl+0x216/0x2d0 [ 158.272356][ T5047] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 158.278314][ T5047] dump_stack+0x1e/0x30 [ 158.282681][ T5047] panic+0x4e2/0xcd0 [ 158.286781][ T5047] ? kmsan_get_metadata+0x101/0x1d0 [ 158.292159][ T5047] kmsan_report+0x2d5/0x2e0 [ 158.296863][ T5047] ? kmsan_internal_chain_origin+0xb0/0xd0 [ 158.302911][ T5047] ? __msan_warning+0x95/0x120 [ 158.307850][ T5047] ? sized_strscpy+0xc4/0x160 [ 158.312735][ T5047] ? copy_name+0x2af/0x320 [ 158.317356][ T5047] ? hfsplus_listxattr+0x11e9/0x1a50 [ 158.322841][ T5047] ? listxattr+0x1f3/0x6b0 [ 158.327358][ T5047] ? __x64_sys_listxattr+0x16b/0x2f0 [ 158.332808][ T5047] ? x64_sys_call+0x2ba0/0x3b50 [ 158.337872][ T5047] ? do_syscall_64+0xcf/0x1e0 [ 158.342765][ T5047] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 158.349017][ T5047] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 158.355317][ T5047] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 158.361313][ T5047] ? kmsan_get_metadata+0x146/0x1d0 [ 158.366621][ T5047] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 158.372630][ T5047] ? utf32_to_utf8+0x4b1/0x4e0 [ 158.377521][ T5047] ? kmsan_get_metadata+0x146/0x1d0 [ 158.382853][ T5047] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 158.388842][ T5047] ? hfsplus_uni2asc+0x2300/0x2350 [ 158.394095][ T5047] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 158.400097][ T5047] ? kmsan_get_metadata+0x146/0x1d0 [ 158.405441][ T5047] ? kmsan_get_metadata+0x146/0x1d0 [ 158.410827][ T5047] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 158.416807][ T5047] __msan_warning+0x95/0x120 [ 158.421584][ T5047] sized_strscpy+0xc4/0x160 [ 158.426326][ T5047] copy_name+0x2af/0x320 [ 158.430789][ T5047] hfsplus_listxattr+0x11e9/0x1a50 [ 158.436142][ T5047] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 158.442115][ T5047] ? kmsan_get_metadata+0x146/0x1d0 [ 158.447490][ T5047] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 158.453442][ T5047] ? kmsan_get_metadata+0x146/0x1d0 [ 158.458830][ T5047] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 158.464778][ T5047] ? __pfx_hfsplus_listxattr+0x10/0x10 [ 158.470442][ T5047] ? __pfx_hfsplus_listxattr+0x10/0x10 [ 158.476058][ T5047] listxattr+0x1f3/0x6b0 [ 158.480485][ T5047] __x64_sys_listxattr+0x16b/0x2f0 [ 158.485835][ T5047] x64_sys_call+0x2ba0/0x3b50 [ 158.490738][ T5047] do_syscall_64+0xcf/0x1e0 [ 158.495422][ T5047] ? clear_bhb_loop+0x25/0x80 [ 158.500229][ T5047] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 158.506301][ T5047] RIP: 0033:0x7fcbd099ba99 [ 158.510858][ T5047] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 158.530679][ T5047] RSP: 002b:00007ffc92aac038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2 [ 158.539296][ T5047] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fcbd099ba99 [ 158.547442][ T5047] RDX: 0000000000000019 RSI: 0000000020000500 RDI: 00000000200004c0 [ 158.555535][ T5047] RBP: 00007fcbd0a0f5f0 R08: 000055556c0134c0 R09: 000055556c0134c0 [ 158.563680][ T5047] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc92aac060 [ 158.571765][ T5047] R13: 00007ffc92aac288 R14: 431bde82d7b634db R15: 00007fcbd09e403b [ 158.579932][ T5047] [ 158.583399][ T5047] Kernel Offset: disabled [ 158.587786][ T5047] Rebooting in 86400 seconds..