./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2252142544
<...>
Warning: Permanently added '10.128.0.117' (ED25519) to the list of known hosts.
execve("./syz-executor2252142544", ["./syz-executor2252142544"], 0x7ffc5f7a32c0 /* 10 vars */) = 0
brk(NULL) = 0x5555862ee000
brk(0x5555862eed00) = 0x5555862eed00
arch_prctl(ARCH_SET_FS, 0x5555862ee380) = 0
set_tid_address(0x5555862ee650) = 5001
set_robust_list(0x5555862ee660, 24) = 0
rseq(0x5555862eeca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2252142544", 4096) = 28
getrandom("\x8f\xaa\xcf\x35\x7a\xae\xaf\x1e", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x5555862eed00
brk(0x55558630fd00) = 0x55558630fd00
brk(0x555586310000) = 0x555586310000
mprotect(0x7fd1e1bca000, 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=0x5555862ee650) = 5002
./strace-static-x86_64: Process 5002 attached
[pid 5002] set_robust_list(0x5555862ee660, 24) = 0
[pid 5002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5002] setpgid(0, 0) = 0
[pid 5002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5002] write(3, "1000", 4) = 4
[pid 5002] close(3) = 0
[pid 5002] memfd_create("syzkaller", 0) = 3
[pid 5002] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd1d9600000
[pid 5002] 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 5002] munmap(0x7fd1d9600000, 138412032) = 0
[pid 5002] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5002] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5002] close(3) = 0
[pid 5002] close(4) = 0
[pid 5002] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = 0
[pid 5002] mount("/dev/loop0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "hfsplus", MS_SYNCHRONOUS|MS_NOATIME|MS_POSIXACL, "") = 0
[pid 5002] openat(AT_FDCWD, "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", O_RDONLY|O_DIRECTORY) = 3
[pid 5002] chdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0
[pid 5002] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 152.604500][ T5002] loop0: detected capacity change from 0 to 1024
[pid 5002] openat(AT_FDCWD, "memory.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[ 152.691753][ T5002] =====================================================
[ 152.699186][ T5002] BUG: KMSAN: uninit-value in __hfsplus_ext_cache_extent+0x82c/0x970
[ 152.707596][ T5002] __hfsplus_ext_cache_extent+0x82c/0x970
[ 152.713530][ T5002] hfsplus_file_extend+0x775/0x1ba0
[ 152.719062][ T5002] hfsplus_get_block+0xe99/0x1690
[ 152.724276][ T5002] __block_write_begin_int+0xa6b/0x2f80
[ 152.730177][ T5002] block_write_begin+0x143/0x450
[ 152.735512][ T5002] cont_write_begin+0xcc0/0x1320
[ 152.740935][ T5002] hfsplus_write_begin+0x9a/0x140
[ 152.746298][ T5002] generic_perform_write+0x400/0xc60
[ 152.751791][ T5002] __generic_file_write_iter+0x20a/0x460
[ 152.757829][ T5002] generic_file_write_iter+0x103/0x5b0
[ 152.763483][ T5002] vfs_write+0xb63/0x1520
[ 152.768049][ T5002] ksys_write+0x20f/0x4c0
[ 152.772563][ T5002] __x64_sys_write+0x93/0xe0
[ 152.777543][ T5002] do_syscall_64+0xd5/0x1f0
[ 152.782275][ T5002] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 152.788463][ T5002]
[ 152.790880][ T5002] Uninit was created at:
[ 152.795683][ T5002] __kmalloc+0x6e4/0x1000
[ 152.800212][ T5002] hfsplus_find_init+0x91/0x250
[ 152.805394][ T5002] hfsplus_file_extend+0x6d8/0x1ba0
[ 152.810745][ T5002] hfsplus_get_block+0xe99/0x1690
[ 152.816026][ T5002] __block_write_begin_int+0xa6b/0x2f80
[ 152.822591][ T5002] block_write_begin+0x143/0x450
[ 152.827932][ T5002] cont_write_begin+0xcc0/0x1320
[ 152.833061][ T5002] hfsplus_write_begin+0x9a/0x140
[ 152.838635][ T5002] generic_perform_write+0x400/0xc60
[ 152.844112][ T5002] __generic_file_write_iter+0x20a/0x460
[ 152.850426][ T5002] generic_file_write_iter+0x103/0x5b0
[ 152.856142][ T5002] vfs_write+0xb63/0x1520
[ 152.860579][ T5002] ksys_write+0x20f/0x4c0
[ 152.865197][ T5002] __x64_sys_write+0x93/0xe0
[ 152.869974][ T5002] do_syscall_64+0xd5/0x1f0
[ 152.874850][ T5002] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 152.880916][ T5002]
[ 152.883287][ T5002] CPU: 0 PID: 5002 Comm: syz-executor225 Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
[ 152.893709][ T5002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
[ 152.904061][ T5002] =====================================================
[ 152.911220][ T5002] Disabling lock debugging due to kernel taint
[ 152.917606][ T5002] Kernel panic - not syncing: kmsan.panic set ...
[ 152.924154][ T5002] CPU: 0 PID: 5002 Comm: syz-executor225 Tainted: G B 6.8.0-syzkaller-08073-g480e035fc4c7 #0
[ 152.935900][ T5002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
[ 152.946094][ T5002] Call Trace:
[ 152.949464][ T5002] <TASK>
[ 152.952502][ T5002] dump_stack_lvl+0x216/0x2d0
[ 152.957710][ T5002] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 152.963691][ T5002] dump_stack+0x1e/0x30
[ 152.968050][ T5002] panic+0x4e2/0xcd0
[ 152.972150][ T5002] ? kmsan_get_metadata+0x71/0x1d0
[ 152.977499][ T5002] kmsan_report+0x2d5/0x2e0
[ 152.982195][ T5002] ? kmsan_get_metadata+0x146/0x1d0
[ 152.987578][ T5002] ? kmsan_internal_set_shadow_origin+0x66/0xe0
[ 152.994012][ T5002] ? __msan_warning+0x95/0x120
[ 152.998915][ T5002] ? __hfsplus_ext_cache_extent+0x82c/0x970
[ 153.004996][ T5002] ? hfsplus_file_extend+0x775/0x1ba0
[ 153.010493][ T5002] ? hfsplus_get_block+0xe99/0x1690
[ 153.015871][ T5002] ? __block_write_begin_int+0xa6b/0x2f80
[ 153.021936][ T5002] ? block_write_begin+0x143/0x450
[ 153.027291][ T5002] ? cont_write_begin+0xcc0/0x1320
[ 153.032616][ T5002] ? hfsplus_write_begin+0x9a/0x140
[ 153.038071][ T5002] ? generic_perform_write+0x400/0xc60
[ 153.043726][ T5002] ? __generic_file_write_iter+0x20a/0x460
[ 153.049776][ T5002] ? generic_file_write_iter+0x103/0x5b0
[ 153.055640][ T5002] ? vfs_write+0xb63/0x1520
[ 153.060327][ T5002] ? ksys_write+0x20f/0x4c0
[ 153.065798][ T5002] ? __x64_sys_write+0x93/0xe0
[ 153.070897][ T5002] ? do_syscall_64+0xd5/0x1f0
[ 153.076234][ T5002] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 153.082452][ T5002] ? _raw_spin_unlock_irqrestore+0x3f/0x60
[ 153.088458][ T5002] ? stack_depot_save_flags+0x665/0x6e0
[ 153.094218][ T5002] ? kmsan_get_metadata+0x146/0x1d0
[ 153.099577][ T5002] ? kmsan_internal_set_shadow_origin+0x66/0xe0
[ 153.106026][ T5002] ? kmsan_get_metadata+0x146/0x1d0
[ 153.111446][ T5002] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 153.117486][ T5002] ? hfsplus_brec_find+0x886/0x970
[ 153.122810][ T5002] ? __pfx_hfs_find_rec_by_key+0x10/0x10
[ 153.129457][ T5002] ? __hfsplus_ext_write_extent+0x53e/0x600
[ 153.135529][ T5002] ? kmsan_get_metadata+0x146/0x1d0
[ 153.140920][ T5002] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 153.146980][ T5002] __msan_warning+0x95/0x120
[ 153.151768][ T5002] __hfsplus_ext_cache_extent+0x82c/0x970
[ 153.157685][ T5002] hfsplus_file_extend+0x775/0x1ba0
[ 153.163382][ T5002] ? kmsan_internal_set_shadow_origin+0x66/0xe0
[ 153.169863][ T5002] hfsplus_get_block+0xe99/0x1690
[ 153.175418][ T5002] ? kmsan_internal_set_shadow_origin+0x66/0xe0
[ 153.182575][ T5002] ? kmsan_get_metadata+0x146/0x1d0
[ 153.187968][ T5002] __block_write_begin_int+0xa6b/0x2f80
[ 153.193752][ T5002] ? __pfx_hfsplus_get_block+0x10/0x10
[ 153.199353][ T5002] ? kmsan_get_shadow_origin_ptr+0x38/0xb0
[ 153.205367][ T5002] block_write_begin+0x143/0x450
[ 153.210533][ T5002] ? __pfx_hfsplus_get_block+0x10/0x10
[ 153.216162][ T5002] cont_write_begin+0xcc0/0x1320
[ 153.221272][ T5002] ? kmsan_get_metadata+0x146/0x1d0
[ 153.226694][ T5002] hfsplus_write_begin+0x9a/0x140
[ 153.231902][ T5002] ? __pfx_hfsplus_get_block+0x10/0x10
[ 153.237507][ T5002] ? __pfx_hfsplus_write_begin+0x10/0x10
[ 153.243357][ T5002] generic_perform_write+0x400/0xc60
[ 153.248855][ T5002] __generic_file_write_iter+0x20a/0x460
[ 153.254705][ T5002] generic_file_write_iter+0x103/0x5b0
[ 153.260316][ T5002] ? kmsan_get_metadata+0x146/0x1d0
[ 153.265710][ T5002] ? __pfx_generic_file_write_iter+0x10/0x10
[ 153.271846][ T5002] vfs_write+0xb63/0x1520
[ 153.276381][ T5002] ksys_write+0x20f/0x4c0
[ 153.280854][ T5002] __x64_sys_write+0x93/0xe0
[ 153.286087][ T5002] do_syscall_64+0xd5/0x1f0
[ 153.290714][ T5002] entry_SYSCALL_64_after_hwframe+0x6d/0x75
[ 153.296903][ T5002] RIP: 0033:0x7fd1e1b56ad9
[ 153.301405][ T5002] 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
[ 153.321153][ T5002] RSP: 002b:00007ffcae3de488 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 153.329704][ T5002] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd1e1b56ad9
[ 153.337835][ T5002] RDX: 00000000fffffdef RSI: 00000000200002c0 RDI: 0000000000000004
[ 153.345920][ T5002] RBP: 00007fd1e1bca5f0 R08: 00005555862ef4c0 R09: 00005555862ef4c0
[ 153.354044][ T5002] R10: 0000000000000634 R11: 0000000000000246 R12: 00007ffcae3de4b0
[ 153.362140][ T5002] R13: 00007ffcae3de6d8 R14: 431bde82d7b634db R15: 00007fd1e1b9f03b
[ 153.370432][ T5002] </TASK>
[ 153.373898][ T5002] Kernel Offset: disabled
[ 153.378289][ T5002] Rebooting in 86400 seconds..