./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1304983614 <...> Warning: Permanently added '10.128.1.74' (ED25519) to the list of known hosts. execve("./syz-executor1304983614", ["./syz-executor1304983614"], 0x7ffd65418b40 /* 10 vars */) = 0 brk(NULL) = 0x555582b8a000 brk(0x555582b8ad00) = 0x555582b8ad00 arch_prctl(ARCH_SET_FS, 0x555582b8a380) = 0 set_tid_address(0x555582b8a650) = 5178 set_robust_list(0x555582b8a660, 24) = 0 rseq(0x555582b8aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1304983614", 4096) = 28 getrandom("\x9e\xfa\x9a\xd8\x7d\x45\xf8\x73", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555582b8ad00 brk(0x555582babd00) = 0x555582babd00 brk(0x555582bac000) = 0x555582bac000 mprotect(0x7f844fc52000, 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=0x555582b8a650) = 5179 ./strace-static-x86_64: Process 5179 attached [pid 5179] set_robust_list(0x555582b8a660, 24) = 0 [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5179] setpgid(0, 0) = 0 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5179] write(3, "1000", 4) = 4 [pid 5179] close(3) = 0 executing program [pid 5179] write(1, "executing program\n", 18) = 18 [pid 5179] memfd_create("syzkaller", 0) = 3 [pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8447600000 [pid 5179] 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"..., 32768) = 32768 [pid 5179] munmap(0x7f8447600000, 138412032) = 0 [pid 5179] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5179] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5179] close(3) = 0 [pid 5179] close(4) = 0 [pid 5179] mkdir("./file1", 0777) = 0 [pid 5179] mount("/dev/loop0", "./file1", "hfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_I_VERSION|MS_LAZYTIME, "") = 0 [pid 5179] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5179] chdir("./file1") = 0 [pid 5179] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 166.590304][ T5179] loop0: detected capacity change from 0 to 64 [pid 5179] rename("./file0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = -1 ENOMEM (Cannot allocate memory) [ 166.633764][ T5179] hfs: keylen 94 too large [ 166.638472][ T5179] hfs: request for non-existent node 1818584064 in B*Tree [ 166.645777][ T5179] hfs: request for non-existent node 1818584064 in B*Tree [ 166.661753][ T5179] hfs: keylen 94 too large [ 166.666441][ T5179] ===================================================== [ 166.673640][ T5179] BUG: KMSAN: uninit-value in hfs_brec_find+0x65e/0x980 [ 166.680908][ T5179] hfs_brec_find+0x65e/0x980 [ 166.685670][ T5179] hfs_cat_create+0x444/0xbc0 [ 166.690572][ T5179] hfs_create+0xcf/0x250 [ 166.695012][ T5179] path_openat+0x2da9/0x6100 [ 166.699820][ T5179] do_filp_open+0x20e/0x590 [ 166.704497][ T5179] do_sys_openat2+0x1bf/0x2f0 [ 166.709454][ T5179] __x64_sys_creat+0xe6/0x140 [ 166.714259][ T5179] x64_sys_call+0x131c/0x3c10 [ 166.719211][ T5179] do_syscall_64+0xcd/0x1e0 [ 166.723918][ T5179] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 166.730080][ T5179] [ 166.732482][ T5179] Local variable fd created at: [ 166.737541][ T5179] hfs_cat_create+0x4b/0xbc0 [ 166.742312][ T5179] hfs_create+0xcf/0x250 [ 166.746764][ T5179] [ 166.749198][ T5179] CPU: 1 UID: 0 PID: 5179 Comm: syz-executor130 Not tainted 6.10.0-syzkaller-12708-g2f8c4f506285 #0 [ 166.760268][ T5179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 166.770544][ T5179] ===================================================== [ 166.777647][ T5179] Disabling lock debugging due to kernel taint [ 166.783899][ T5179] Kernel panic - not syncing: kmsan.panic set ... [ 166.790463][ T5179] CPU: 1 UID: 0 PID: 5179 Comm: syz-executor130 Tainted: G B 6.10.0-syzkaller-12708-g2f8c4f506285 #0 [ 166.802831][ T5179] Tainted: [B]=BAD_PAGE [ 166.807053][ T5179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 166.817213][ T5179] Call Trace: [ 166.820575][ T5179] [ 166.823553][ T5179] dump_stack_lvl+0x216/0x2d0 [ 166.828392][ T5179] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 166.834398][ T5179] dump_stack+0x1e/0x30 [ 166.838694][ T5179] panic+0x4e2/0xcd0 [ 166.842764][ T5179] ? kmsan_get_metadata+0xf1/0x1c0 [ 166.848004][ T5179] kmsan_report+0x2c7/0x2d0 [ 166.852634][ T5179] ? vprintk_default+0x3e/0x50 [ 166.857493][ T5179] ? __msan_warning+0x95/0x120 [ 166.862361][ T5179] ? hfs_brec_find+0x65e/0x980 [ 166.867224][ T5179] ? hfs_cat_create+0x444/0xbc0 [ 166.872213][ T5179] ? hfs_create+0xcf/0x250 [ 166.876810][ T5179] ? path_openat+0x2da9/0x6100 [ 166.881668][ T5179] ? do_filp_open+0x20e/0x590 [ 166.886457][ T5179] ? do_sys_openat2+0x1bf/0x2f0 [ 166.891429][ T5179] ? __x64_sys_creat+0xe6/0x140 [ 166.896380][ T5179] ? x64_sys_call+0x131c/0x3c10 [ 166.901343][ T5179] ? do_syscall_64+0xcd/0x1e0 [ 166.906172][ T5179] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 166.912449][ T5179] ? kmsan_get_metadata+0x13e/0x1c0 [ 166.917880][ T5179] ? hfs_brec_keylen+0x398/0x610 [ 166.923000][ T5179] ? hfs_brec_keylen+0x58f/0x610 [ 166.928048][ T5179] ? __hfs_brec_find+0x426/0x830 [ 166.933088][ T5179] ? __pfx_hfs_cat_keycmp+0x10/0x10 [ 166.938401][ T5179] ? kmsan_get_metadata+0x13e/0x1c0 [ 166.943713][ T5179] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 166.949654][ T5179] __msan_warning+0x95/0x120 [ 166.954351][ T5179] hfs_brec_find+0x65e/0x980 [ 166.959061][ T5179] hfs_cat_create+0x444/0xbc0 [ 166.963861][ T5179] ? hfs_mark_mdb_dirty+0x135/0x2a0 [ 166.969174][ T5179] hfs_create+0xcf/0x250 [ 166.973556][ T5179] ? __pfx_hfs_create+0x10/0x10 [ 166.978589][ T5179] path_openat+0x2da9/0x6100 [ 166.983303][ T5179] do_filp_open+0x20e/0x590 [ 166.987923][ T5179] do_sys_openat2+0x1bf/0x2f0 [ 166.992718][ T5179] __x64_sys_creat+0xe6/0x140 [ 166.997481][ T5179] x64_sys_call+0x131c/0x3c10 [ 167.002271][ T5179] do_syscall_64+0xcd/0x1e0 [ 167.006890][ T5179] ? clear_bhb_loop+0x25/0x80 [ 167.011662][ T5179] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 167.017680][ T5179] RIP: 0033:0x7f844fbdead9 [ 167.022178][ T5179] 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 [ 167.041931][ T5179] RSP: 002b:00007fff34b57518 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 167.050447][ T5179] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f844fbdead9 [ 167.058513][ T5179] RDX: ffffffffffffffb8 RSI: 0000000000000000 RDI: 0000000020000300 [ 167.066563][ T5179] RBP: 00007f844fc525f0 R08: 0000555582b8b4c0 R09: 0000555582b8b4c0 [ 167.074639][ T5179] R10: 00000000000002a1 R11: 0000000000000246 R12: 00007fff34b57540 [ 167.082731][ T5179] R13: 00007fff34b57768 R14: 431bde82d7b634db R15: 00007f844fc2703b [ 167.090804][ T5179] [ 167.094153][ T5179] Kernel Offset: disabled [ 167.098532][ T5179] Rebooting in 86400 seconds..