./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3783990645 <...> Warning: Permanently added '10.128.1.161' (ED25519) to the list of known hosts. execve("./syz-executor3783990645", ["./syz-executor3783990645"], 0x7ffe4a7c8de0 /* 10 vars */) = 0 brk(NULL) = 0x55558c7fb000 brk(0x55558c7fbd00) = 0x55558c7fbd00 arch_prctl(ARCH_SET_FS, 0x55558c7fb380) = 0 set_tid_address(0x55558c7fb650) = 5012 set_robust_list(0x55558c7fb660, 24) = 0 rseq(0x55558c7fbca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3783990645", 4096) = 28 getrandom("\x9b\x12\x6d\x38\xca\x00\x66\x7c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558c7fbd00 brk(0x55558c81cd00) = 0x55558c81cd00 brk(0x55558c81d000) = 0x55558c81d000 mprotect(0x7f4a0a8c7000, 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=0x55558c7fb650) = 5013 ./strace-static-x86_64: Process 5013 attached [pid 5013] set_robust_list(0x55558c7fb660, 24) = 0 [pid 5013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5013] setpgid(0, 0) = 0 [pid 5013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5013] write(3, "1000", 4) = 4 [pid 5013] close(3) = 0 [pid 5013] memfd_create("syzkaller", 0) = 3 [pid 5013] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4a02400000 [pid 5013] 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 5013] munmap(0x7f4a02400000, 138412032) = 0 [pid 5013] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5013] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5013] close(3) = 0 [pid 5013] close(4) = 0 [pid 5013] mkdir("./file0", 0777) = 0 [pid 5013] 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 5013] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 182.356092][ T5013] loop0: detected capacity change from 0 to 1024 [pid 5013] chdir("./file0") = 0 [pid 5013] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 182.431911][ T5013] ===================================================== [ 182.439464][ T5013] BUG: KMSAN: uninit-value in hfs_find_1st_rec_by_cnid+0x27a/0x3f0 [ 182.447819][ T5013] hfs_find_1st_rec_by_cnid+0x27a/0x3f0 [ 182.453629][ T5013] __hfsplus_brec_find+0x26f/0x7b0 [ 182.459093][ T5013] hfsplus_brec_find+0x445/0x970 [ 182.464321][ T5013] hfsplus_find_attr+0x30c/0x390 [ 182.469689][ T5013] hfsplus_listxattr+0x586/0x1a60 [ 182.474939][ T5013] listxattr+0x1f3/0x6b0 [ 182.479666][ T5013] __x64_sys_listxattr+0x16b/0x2f0 [ 182.485027][ T5013] do_syscall_64+0xd5/0x1f0 [ 182.490095][ T5013] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 182.496337][ T5013] [ 182.498749][ T5013] Uninit was created at: [ 182.503241][ T5013] __kmalloc+0x6e4/0x1000 [ 182.507995][ T5013] hfsplus_find_init+0x91/0x250 [ 182.513101][ T5013] hfsplus_listxattr+0x44a/0x1a60 [ 182.518469][ T5013] listxattr+0x1f3/0x6b0 [ 182.522960][ T5013] __x64_sys_listxattr+0x16b/0x2f0 [ 182.528492][ T5013] do_syscall_64+0xd5/0x1f0 [ 182.533234][ T5013] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 182.539518][ T5013] [ 182.541966][ T5013] CPU: 0 PID: 5013 Comm: syz-executor378 Not tainted 6.8.0-syzkaller-11743-ga4145ce1e7bc #0 [ 182.552488][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 182.562856][ T5013] ===================================================== [ 182.570188][ T5013] Disabling lock debugging due to kernel taint [ 182.576580][ T5013] Kernel panic - not syncing: kmsan.panic set ... [ 182.583115][ T5013] CPU: 0 PID: 5013 Comm: syz-executor378 Tainted: G B 6.8.0-syzkaller-11743-ga4145ce1e7bc #0 [ 182.594905][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 182.605326][ T5013] Call Trace: [ 182.608765][ T5013] [ 182.611813][ T5013] dump_stack_lvl+0x216/0x2d0 [ 182.616663][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.622694][ T5013] dump_stack+0x1e/0x30 [ 182.627078][ T5013] panic+0x4e2/0xcd0 [ 182.631157][ T5013] ? kmsan_get_metadata+0xf1/0x1d0 [ 182.636591][ T5013] kmsan_report+0x2d5/0x2e0 [ 182.641376][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.647470][ T5013] ? __msan_warning+0x95/0x120 [ 182.652458][ T5013] ? hfs_find_1st_rec_by_cnid+0x27a/0x3f0 [ 182.658477][ T5013] ? __hfsplus_brec_find+0x26f/0x7b0 [ 182.664095][ T5013] ? hfsplus_brec_find+0x445/0x970 [ 182.669505][ T5013] ? hfsplus_find_attr+0x30c/0x390 [ 182.674757][ T5013] ? hfsplus_listxattr+0x586/0x1a60 [ 182.680099][ T5013] ? listxattr+0x1f3/0x6b0 [ 182.684727][ T5013] ? __x64_sys_listxattr+0x16b/0x2f0 [ 182.690172][ T5013] ? do_syscall_64+0xd5/0x1f0 [ 182.695009][ T5013] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 182.701281][ T5013] ? kmsan_get_metadata+0x146/0x1d0 [ 182.706778][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.712839][ T5013] ? hfsplus_bnode_read_u16+0x3e/0x2b0 [ 182.718580][ T5013] ? filter_irq_stacks+0x60/0x1a0 [ 182.723894][ T5013] ? kmsan_get_metadata+0x146/0x1d0 [ 182.729401][ T5013] ? kmsan_internal_memmove_metadata+0x91/0x230 [ 182.735879][ T5013] ? kmsan_get_metadata+0x146/0x1d0 [ 182.741381][ T5013] ? kmsan_internal_memmove_metadata+0x91/0x230 [ 182.747944][ T5013] ? kmsan_get_metadata+0x146/0x1d0 [ 182.753461][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.759547][ T5013] __msan_warning+0x95/0x120 [ 182.764299][ T5013] hfs_find_1st_rec_by_cnid+0x27a/0x3f0 [ 182.770074][ T5013] __hfsplus_brec_find+0x26f/0x7b0 [ 182.775476][ T5013] ? __pfx_hfs_find_1st_rec_by_cnid+0x10/0x10 [ 182.781826][ T5013] hfsplus_brec_find+0x445/0x970 [ 182.786933][ T5013] ? __pfx_hfs_find_1st_rec_by_cnid+0x10/0x10 [ 182.793252][ T5013] hfsplus_find_attr+0x30c/0x390 [ 182.798524][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.804618][ T5013] hfsplus_listxattr+0x586/0x1a60 [ 182.809784][ T5013] ? __msan_memset+0xf5/0x1b0 [ 182.814636][ T5013] ? filter_irq_stacks+0x164/0x1a0 [ 182.819915][ T5013] ? stack_depot_save_flags+0x2c/0x6e0 [ 182.825573][ T5013] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 182.832076][ T5013] ? kmsan_get_metadata+0x146/0x1d0 [ 182.837454][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.843481][ T5013] ? kmsan_get_metadata+0x146/0x1d0 [ 182.848996][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.855084][ T5013] ? kmsan_get_metadata+0x146/0x1d0 [ 182.860485][ T5013] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 182.866520][ T5013] ? __pfx_hfsplus_listxattr+0x10/0x10 [ 182.872228][ T5013] ? __pfx_hfsplus_listxattr+0x10/0x10 [ 182.877842][ T5013] listxattr+0x1f3/0x6b0 [ 182.882288][ T5013] __x64_sys_listxattr+0x16b/0x2f0 [ 182.887599][ T5013] do_syscall_64+0xd5/0x1f0 [ 182.892312][ T5013] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 182.898429][ T5013] RIP: 0033:0x7f4a0a852d59 [ 182.903004][ T5013] 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 [ 182.922811][ T5013] RSP: 002b:00007fffc15b7948 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2 [ 182.931453][ T5013] RAX: ffffffffffffffda RBX: 00007f4a0a89c082 RCX: 00007f4a0a852d59 [ 182.939557][ T5013] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 [ 182.947680][ T5013] RBP: 0030656c69662f2e R08: 00000000000006e1 R09: 000055558c7fc4c0 [ 182.955874][ T5013] R10: 00007fffc15b7810 R11: 0000000000000246 R12: 00007fffc15b7970 [ 182.964029][ T5013] R13: 00007fffc15b7b98 R14: 431bde82d7b634db R15: 00007f4a0a89c03b [ 182.972179][ T5013] [ 182.975506][ T5013] Kernel Offset: disabled [ 182.979926][ T5013] Rebooting in 86400 seconds..