./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2013193405 <...> Warning: Permanently added '10.128.1.85' (ED25519) to the list of known hosts. execve("./syz-executor2013193405", ["./syz-executor2013193405"], 0x7ffce8165cd0 /* 10 vars */) = 0 brk(NULL) = 0x555567b23000 brk(0x555567b23d00) = 0x555567b23d00 arch_prctl(ARCH_SET_FS, 0x555567b23380) = 0 set_tid_address(0x555567b23650) = 5188 set_robust_list(0x555567b23660, 24) = 0 rseq(0x555567b23ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2013193405", 4096) = 28 getrandom("\x52\x78\x8a\x7b\xf6\x52\x85\xa5", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555567b23d00 brk(0x555567b44d00) = 0x555567b44d00 brk(0x555567b45000) = 0x555567b45000 mprotect(0x7fb6ca923000, 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, child_tidptr=0x555567b23650) = 5189 ./strace-static-x86_64: Process 5189 attached [pid 5189] set_robust_list(0x555567b23660, 24) = 0 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5189] setpgid(0, 0) = 0 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5189] write(3, "1000", 4) = 4 [pid 5189] close(3) = 0 [pid 5189] write(1, "executing program\n", 18executing program ) = 18 [pid 5189] memfd_create("syzkaller", 0) = 3 [pid 5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb6c2400000 [pid 5189] 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 5189] munmap(0x7fb6c2400000, 138412032) = 0 [pid 5189] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5189] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5189] close(3) = 0 [pid 5189] close(4) = 0 [pid 5189] mkdir("./file0", 0777) = 0 [pid 5189] mount("/dev/loop0", "./file0", "hfsplus", MS_NODEV|MS_NOEXEC|MS_I_VERSION, "\x70\x61\x72\x74\x3d\x30\x78\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x36\x2c\x6e\x6c\x73\x3d\x69\x73\x6f\x38\x38\x35\x39\x2d\x31\x34\x2c\x73\x65\x73\x73\x69\x6f\x6e\x3d\x30\x78\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x66\x37\x66\x2c\x62\x61\x72\x72\x69\x65\x72\x2c\x63\x72\x65\x61\x74\x6f\x72\x3d\xdd\xf2\xbd\x6c\x2c\x6e\x6f\x64\x65\x63\x6f\x6d\x70\x6f\x73\x65\x2c\x75"...) = 0 [pid 5189] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5189] chdir("./file0") = 0 [pid 5189] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 186.851352][ T5189] loop0: detected capacity change from 0 to 1024 [ 186.908921][ T5189] ===================================================== [ 186.916454][ T5189] BUG: KMSAN: uninit-value in hfs_find_1st_rec_by_cnid+0x27a/0x3f0 [ 186.924822][ T5189] hfs_find_1st_rec_by_cnid+0x27a/0x3f0 [ 186.930653][ T5189] __hfsplus_brec_find+0x26f/0x7b0 [ 186.936199][ T5189] hfsplus_brec_find+0x445/0x970 [ 186.941510][ T5189] hfsplus_find_attr+0x30c/0x390 [ 186.946713][ T5189] hfsplus_listxattr+0x586/0x1a50 [ 186.952225][ T5189] listxattr+0x1f3/0x6b0 [ 186.956729][ T5189] __x64_sys_listxattr+0x168/0x2e0 [ 186.962306][ T5189] x64_sys_call+0x24bc/0x3ba0 [ 186.967249][ T5189] do_syscall_64+0xcd/0x1e0 [ 186.972493][ T5189] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.978679][ T5189] [ 186.981292][ T5189] Uninit was created at: [ 186.986014][ T5189] __kmalloc_noprof+0x661/0xf30 [ 186.991260][ T5189] hfsplus_find_init+0x95/0x1d0 [ 186.996366][ T5189] hfsplus_listxattr+0x44a/0x1a50 [ 187.001808][ T5189] listxattr+0x1f3/0x6b0 [ 187.006268][ T5189] __x64_sys_listxattr+0x168/0x2e0 [ 187.011662][ T5189] x64_sys_call+0x24bc/0x3ba0 [ 187.016552][ T5189] do_syscall_64+0xcd/0x1e0 [ 187.021419][ T5189] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 187.027596][ T5189] [ 187.030010][ T5189] CPU: 1 UID: 0 PID: 5189 Comm: syz-executor201 Not tainted 6.12.0-rc3-syzkaller-00454-gdb87114dcf13 #0 [ 187.041982][ T5189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 187.052289][ T5189] ===================================================== [ 187.059300][ T5189] Disabling lock debugging due to kernel taint [ 187.065751][ T5189] Kernel panic - not syncing: kmsan.panic set ... [ 187.072325][ T5189] CPU: 1 UID: 0 PID: 5189 Comm: syz-executor201 Tainted: G B 6.12.0-rc3-syzkaller-00454-gdb87114dcf13 #0 [ 187.085069][ T5189] Tainted: [B]=BAD_PAGE [ 187.089299][ T5189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 187.099565][ T5189] Call Trace: [ 187.102962][ T5189] [ 187.106007][ T5189] dump_stack_lvl+0x216/0x2d0 [ 187.110837][ T5189] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.116809][ T5189] dump_stack+0x1e/0x30 [ 187.121143][ T5189] panic+0x4e2/0xcf0 [ 187.125240][ T5189] ? kmsan_get_metadata+0xc1/0x1c0 [ 187.130487][ T5189] kmsan_report+0x2c7/0x2d0 [ 187.135153][ T5189] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.141137][ T5189] ? __msan_warning+0x95/0x120 [ 187.146052][ T5189] ? hfs_find_1st_rec_by_cnid+0x27a/0x3f0 [ 187.151933][ T5189] ? __hfsplus_brec_find+0x26f/0x7b0 [ 187.157374][ T5189] ? hfsplus_brec_find+0x445/0x970 [ 187.162634][ T5189] ? hfsplus_find_attr+0x30c/0x390 [ 187.167899][ T5189] ? hfsplus_listxattr+0x586/0x1a50 [ 187.173278][ T5189] ? listxattr+0x1f3/0x6b0 [ 187.177912][ T5189] ? __x64_sys_listxattr+0x168/0x2e0 [ 187.183338][ T5189] ? x64_sys_call+0x24bc/0x3ba0 [ 187.188330][ T5189] ? do_syscall_64+0xcd/0x1e0 [ 187.193153][ T5189] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 187.199395][ T5189] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.205322][ T5189] ? hfsplus_bnode_read_u16+0x3e/0x2b0 [ 187.210928][ T5189] ? filter_irq_stacks+0x60/0x1a0 [ 187.216150][ T5189] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.221507][ T5189] ? kmsan_internal_memmove_metadata+0x91/0x230 [ 187.227945][ T5189] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.233276][ T5189] ? kmsan_internal_memmove_metadata+0x91/0x230 [ 187.239715][ T5189] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.245051][ T5189] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.251005][ T5189] __msan_warning+0x95/0x120 [ 187.255817][ T5189] hfs_find_1st_rec_by_cnid+0x27a/0x3f0 [ 187.261542][ T5189] __hfsplus_brec_find+0x26f/0x7b0 [ 187.266808][ T5189] ? __pfx_hfs_find_1st_rec_by_cnid+0x10/0x10 [ 187.273049][ T5189] hfsplus_brec_find+0x445/0x970 [ 187.278167][ T5189] ? __pfx_hfs_find_1st_rec_by_cnid+0x10/0x10 [ 187.284443][ T5189] hfsplus_find_attr+0x30c/0x390 [ 187.289680][ T5189] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.295692][ T5189] hfsplus_listxattr+0x586/0x1a50 [ 187.300917][ T5189] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 187.307269][ T5189] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.312646][ T5189] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.318027][ T5189] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.324002][ T5189] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.329482][ T5189] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.335457][ T5189] ? kmsan_get_metadata+0x13e/0x1c0 [ 187.340877][ T5189] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 187.346837][ T5189] ? __pfx_hfsplus_listxattr+0x10/0x10 [ 187.352583][ T5189] ? __pfx_hfsplus_listxattr+0x10/0x10 [ 187.358239][ T5189] listxattr+0x1f3/0x6b0 [ 187.362733][ T5189] __x64_sys_listxattr+0x168/0x2e0 [ 187.368029][ T5189] x64_sys_call+0x24bc/0x3ba0 [ 187.372870][ T5189] do_syscall_64+0xcd/0x1e0 [ 187.377535][ T5189] ? clear_bhb_loop+0x25/0x80 [ 187.382377][ T5189] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 187.388534][ T5189] RIP: 0033:0x7fb6ca8aed59 [ 187.393086][ T5189] 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 [ 187.412929][ T5189] RSP: 002b:00007ffec371ba28 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2 [ 187.421521][ T5189] RAX: ffffffffffffffda RBX: 00007fb6ca8f8095 RCX: 00007fb6ca8aed59 [ 187.429649][ T5189] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 [ 187.437746][ T5189] RBP: 0030656c69662f2e R08: 00000000000006e1 R09: 0000555567b244c0 [ 187.445873][ T5189] R10: 00007ffec371b8f0 R11: 0000000000000246 R12: 00007ffec371ba50 [ 187.453972][ T5189] R13: 00007ffec371bc78 R14: 431bde82d7b634db R15: 00007fb6ca8f803b [ 187.462113][ T5189] [ 187.465447][ T5189] Kernel Offset: disabled [ 187.469864][ T5189] Rebooting in 86400 seconds..