./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1171490273 <...> Warning: Permanently added '10.128.0.95' (ED25519) to the list of known hosts. execve("./syz-executor1171490273", ["./syz-executor1171490273"], 0x7ffe6fda2f00 /* 10 vars */) = 0 brk(NULL) = 0x55555efae000 brk(0x55555efaed00) = 0x55555efaed00 arch_prctl(ARCH_SET_FS, 0x55555efae380) = 0 set_tid_address(0x55555efae650) = 5044 set_robust_list(0x55555efae660, 24) = 0 rseq(0x55555efaeca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1171490273", 4096) = 28 getrandom("\x0d\xe9\x4a\xb3\x20\x7a\xb4\x0a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555efaed00 brk(0x55555efcfd00) = 0x55555efcfd00 brk(0x55555efd0000) = 0x55555efd0000 mprotect(0x7f34ce31b000, 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=0x55555efae650) = 5045 ./strace-static-x86_64: Process 5045 attached [pid 5045] set_robust_list(0x55555efae660, 24) = 0 [pid 5045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 executing program [pid 5045] setpgid(0, 0) = 0 [pid 5045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "1000", 4) = 4 [pid 5045] close(3) = 0 [pid 5045] write(1, "executing program\n", 18) = 18 [pid 5045] memfd_create("syzkaller", 0) = 3 [pid 5045] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f34c5e00000 [pid 5045] 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 5045] munmap(0x7f34c5e00000, 138412032) = 0 [pid 5045] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5045] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5045] close(3) = 0 [pid 5045] close(4) = 0 [pid 5045] mkdir("./bus", 0777) = 0 [ 169.142707][ T5045] loop0: detected capacity change from 0 to 1024 [ 169.162425][ T5045] ======================================================= [ 169.162425][ T5045] WARNING: The mand mount option has been deprecated and [ 169.162425][ T5045] and is ignored by this kernel. Remove the mand [ 169.162425][ T5045] option from the mount to silence this warning. [ 169.162425][ T5045] ======================================================= [pid 5045] mount("/dev/loop0", "./bus", "hfsplus", MS_SYNCHRONOUS|MS_MANDLOCK, "") = 0 [pid 5045] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5045] chdir("./bus") = 0 [pid 5045] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5045] setxattr("./file1", "security.ima", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1792, 0) = 0 [ 169.253686][ T5045] ===================================================== [ 169.261061][ T5045] BUG: KMSAN: uninit-value in hfsplus_attr_bin_cmp_key+0xf1/0x190 [ 169.269282][ T5045] hfsplus_attr_bin_cmp_key+0xf1/0x190 [ 169.275062][ T5045] hfs_find_rec_by_key+0xb1/0x240 [ 169.280299][ T5045] __hfsplus_brec_find+0x26f/0x7b0 [ 169.285888][ T5045] hfsplus_brec_find+0x445/0x970 [ 169.291051][ T5045] hfsplus_find_attr+0x30c/0x390 [ 169.296375][ T5045] hfsplus_attr_exists+0x1c6/0x260 [ 169.301731][ T5045] __hfsplus_setxattr+0x510/0x3580 [ 169.307124][ T5045] hfsplus_setxattr+0x129/0x1e0 [ 169.312179][ T5045] hfsplus_trusted_setxattr+0x55/0x70 [ 169.317864][ T5045] __vfs_setxattr+0x844/0x8b0 [ 169.322723][ T5045] __vfs_setxattr_noperm+0x22f/0xb00 [ 169.328358][ T5045] __vfs_setxattr_locked+0x441/0x480 [ 169.333994][ T5045] vfs_setxattr+0x294/0x650 [ 169.338612][ T5045] setxattr+0x463/0x540 [ 169.342881][ T5045] path_setxattr+0x1f4/0x3c0 [ 169.347767][ T5045] __x64_sys_setxattr+0xfb/0x180 [ 169.352895][ T5045] x64_sys_call+0x31db/0x3c10 [ 169.357944][ T5045] do_syscall_64+0xcd/0x1e0 [ 169.362669][ T5045] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 169.368877][ T5045] [ 169.371306][ T5045] Uninit was created at: [ 169.375884][ T5045] __kmalloc_noprof+0x661/0xf30 [ 169.380918][ T5045] hfsplus_find_init+0x95/0x1d0 [ 169.386010][ T5045] hfsplus_attr_exists+0xde/0x260 [ 169.391305][ T5045] __hfsplus_setxattr+0x510/0x3580 [ 169.398103][ T5045] hfsplus_setxattr+0x129/0x1e0 [ 169.403083][ T5045] hfsplus_trusted_setxattr+0x55/0x70 [ 169.409170][ T5045] __vfs_setxattr+0x844/0x8b0 [ 169.414138][ T5045] __vfs_setxattr_noperm+0x22f/0xb00 [ 169.419694][ T5045] __vfs_setxattr_locked+0x441/0x480 [ 169.425699][ T5045] vfs_setxattr+0x294/0x650 [ 169.430461][ T5045] setxattr+0x463/0x540 [ 169.434877][ T5045] path_setxattr+0x1f4/0x3c0 [ 169.439760][ T5045] __x64_sys_setxattr+0xfb/0x180 [ 169.445067][ T5045] x64_sys_call+0x31db/0x3c10 [ 169.449938][ T5045] do_syscall_64+0xcd/0x1e0 [ 169.454930][ T5045] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 169.461056][ T5045] [ 169.463594][ T5045] CPU: 0 PID: 5045 Comm: syz-executor117 Not tainted 6.10.0-syzkaller-11185-g2c9b3512402e #0 [ 169.474026][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 169.484343][ T5045] ===================================================== [ 169.491568][ T5045] Disabling lock debugging due to kernel taint [ 169.498012][ T5045] Kernel panic - not syncing: kmsan.panic set ... [ 169.504686][ T5045] CPU: 0 PID: 5045 Comm: syz-executor117 Tainted: G B 6.10.0-syzkaller-11185-g2c9b3512402e #0 [ 169.516554][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 169.526876][ T5045] Call Trace: [ 169.530235][ T5045] [ 169.533285][ T5045] dump_stack_lvl+0x216/0x2d0 [ 169.538109][ T5045] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 169.544076][ T5045] dump_stack+0x1e/0x30 [ 169.548394][ T5045] panic+0x4e2/0xcd0 [ 169.552449][ T5045] ? kmsan_get_metadata+0xf1/0x1d0 [ 169.557819][ T5045] kmsan_report+0x2d5/0x2e0 [ 169.562641][ T5045] ? __msan_warning+0x95/0x120 [ 169.567718][ T5045] ? hfsplus_attr_bin_cmp_key+0xf1/0x190 [ 169.573694][ T5045] ? hfs_find_rec_by_key+0xb1/0x240 [ 169.579727][ T5045] ? __hfsplus_brec_find+0x26f/0x7b0 [ 169.585252][ T5045] ? hfsplus_brec_find+0x445/0x970 [ 169.590560][ T5045] ? hfsplus_find_attr+0x30c/0x390 [ 169.595807][ T5045] ? hfsplus_attr_exists+0x1c6/0x260 [ 169.601212][ T5045] ? __hfsplus_setxattr+0x510/0x3580 [ 169.606618][ T5045] ? hfsplus_setxattr+0x129/0x1e0 [ 169.611944][ T5045] ? hfsplus_trusted_setxattr+0x55/0x70 [ 169.617885][ T5045] ? __vfs_setxattr+0x844/0x8b0 [ 169.622855][ T5045] ? __vfs_setxattr_noperm+0x22f/0xb00 [ 169.630189][ T5045] ? __vfs_setxattr_locked+0x441/0x480 [ 169.635793][ T5045] ? vfs_setxattr+0x294/0x650 [ 169.640588][ T5045] ? setxattr+0x463/0x540 [ 169.645136][ T5045] ? path_setxattr+0x1f4/0x3c0 [ 169.650182][ T5045] ? __x64_sys_setxattr+0xfb/0x180 [ 169.655778][ T5045] ? x64_sys_call+0x31db/0x3c10 [ 169.660809][ T5045] ? do_syscall_64+0xcd/0x1e0 [ 169.665724][ T5045] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 169.672025][ T5045] ? kmsan_get_metadata+0x146/0x1d0 [ 169.677449][ T5045] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 169.683553][ T5045] ? hfsplus_bnode_read_u16+0x3e/0x2b0 [ 169.689360][ T5045] ? filter_irq_stacks+0x60/0x1a0 [ 169.694600][ T5045] ? kmsan_get_metadata+0x146/0x1d0 [ 169.699990][ T5045] ? kmsan_internal_memmove_metadata+0x91/0x230 [ 169.706792][ T5045] ? kmsan_get_metadata+0x146/0x1d0 [ 169.712196][ T5045] ? kmsan_get_metadata+0x146/0x1d0 [ 169.717602][ T5045] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 169.723685][ T5045] __msan_warning+0x95/0x120 [ 169.728480][ T5045] hfsplus_attr_bin_cmp_key+0xf1/0x190 [ 169.734076][ T5045] hfs_find_rec_by_key+0xb1/0x240 [ 169.739226][ T5045] ? __pfx_hfsplus_attr_bin_cmp_key+0x10/0x10 [ 169.745527][ T5045] __hfsplus_brec_find+0x26f/0x7b0 [ 169.750870][ T5045] ? __pfx_hfs_find_rec_by_key+0x10/0x10 [ 169.756834][ T5045] hfsplus_brec_find+0x445/0x970 [ 169.762000][ T5045] ? __pfx_hfs_find_rec_by_key+0x10/0x10 [ 169.767775][ T5045] hfsplus_find_attr+0x30c/0x390 [ 169.772859][ T5045] hfsplus_attr_exists+0x1c6/0x260 [ 169.778146][ T5045] __hfsplus_setxattr+0x510/0x3580 [ 169.783432][ T5045] ? kmsan_get_metadata+0x146/0x1d0 [ 169.788859][ T5045] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 169.795337][ T5045] ? kmsan_internal_poison_memory+0x7d/0x90 [ 169.801385][ T5045] ? kmsan_internal_poison_memory+0x49/0x90 [ 169.807533][ T5045] ? kmsan_slab_alloc+0xdf/0x160 [ 169.812980][ T5045] ? __kmalloc_cache_noprof+0x4f0/0xb00 [ 169.818777][ T5045] ? hfsplus_setxattr+0x74/0x1e0 [ 169.823960][ T5045] ? hfsplus_trusted_setxattr+0x55/0x70 [ 169.829834][ T5045] ? __vfs_setxattr+0x844/0x8b0 [ 169.834886][ T5045] ? __vfs_setxattr_noperm+0x22f/0xb00 [ 169.840465][ T5045] ? __vfs_setxattr_locked+0x441/0x480 [ 169.846044][ T5045] ? vfs_setxattr+0x294/0x650 [ 169.850932][ T5045] ? setxattr+0x463/0x540 [ 169.855397][ T5045] ? path_setxattr+0x1f4/0x3c0 [ 169.860318][ T5045] ? __x64_sys_setxattr+0xfb/0x180 [ 169.865646][ T5045] ? x64_sys_call+0x31db/0x3c10 [ 169.870787][ T5045] ? do_syscall_64+0xcd/0x1e0 [ 169.875710][ T5045] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 169.881932][ T5045] ? __module_address+0xef/0x7e0 [ 169.887064][ T5045] ? kmsan_get_metadata+0x146/0x1d0 [ 169.892481][ T5045] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 169.898447][ T5045] ? __kmalloc_cache_noprof+0x45/0xb00 [ 169.904216][ T5045] ? filter_irq_stacks+0x60/0x1a0 [ 169.909405][ T5045] ? kmsan_get_metadata+0x146/0x1d0 [ 169.914748][ T5045] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 169.920982][ T5045] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 169.927166][ T5045] ? kmsan_get_metadata+0x146/0x1d0 [ 169.932890][ T5045] hfsplus_setxattr+0x129/0x1e0 [ 169.940522][ T5045] hfsplus_trusted_setxattr+0x55/0x70 [ 169.946447][ T5045] ? __pfx_hfsplus_trusted_setxattr+0x10/0x10 [ 169.953084][ T5045] __vfs_setxattr+0x844/0x8b0 [ 169.958004][ T5045] __vfs_setxattr_noperm+0x22f/0xb00 [ 169.963776][ T5045] __vfs_setxattr_locked+0x441/0x480 [ 169.969453][ T5045] vfs_setxattr+0x294/0x650 [ 169.974384][ T5045] setxattr+0x463/0x540 [ 169.979110][ T5045] ? kmem_cache_free+0x3e7/0xbb0 [ 169.984680][ T5045] ? user_path_at+0x32f/0x390 [ 169.989700][ T5045] ? kmsan_get_metadata+0x146/0x1d0 [ 169.995202][ T5045] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 170.002142][ T5045] path_setxattr+0x1f4/0x3c0 [ 170.006984][ T5045] __x64_sys_setxattr+0xfb/0x180 [ 170.012303][ T5045] x64_sys_call+0x31db/0x3c10 [ 170.017216][ T5045] do_syscall_64+0xcd/0x1e0 [ 170.021860][ T5045] ? clear_bhb_loop+0x25/0x80 [ 170.026774][ T5045] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 170.032917][ T5045] RIP: 0033:0x7f34ce2a6e19 [ 170.037537][ T5045] 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 [ 170.057470][ T5045] RSP: 002b:00007ffe9b4be258 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc [ 170.066209][ T5045] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f34ce2a6e19 [ 170.074392][ T5045] RDX: 0000000020000200 RSI: 00000000200001c0 RDI: 0000000020000000 [ 170.082458][ T5045] RBP: 00007f34ce2f0095 R08: 0000000000000000 R09: 000055555efaf4c0 [ 170.090532][ T5045] R10: 0000000000000841 R11: 0000000000000246 R12: 00007ffe9b4be280 [ 170.098619][ T5045] R13: 00007ffe9b4be4a8 R14: 431bde82d7b634db R15: 00007f34ce2f003b [ 170.106927][ T5045] [ 170.110160][ T5045] Kernel Offset: disabled [ 170.114563][ T5045] Rebooting in 86400 seconds..