./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3288160816 <...> Warning: Permanently added '10.128.1.130' (ED25519) to the list of known hosts. execve("./syz-executor3288160816", ["./syz-executor3288160816"], 0x7ffc59815c40 /* 10 vars */) = 0 brk(NULL) = 0x555576712000 brk(0x555576712d00) = 0x555576712d00 arch_prctl(ARCH_SET_FS, 0x555576712380) = 0 set_tid_address(0x555576712650) = 5082 set_robust_list(0x555576712660, 24) = 0 rseq(0x555576712ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3288160816", 4096) = 28 getrandom("\x81\x3f\x3d\xbe\xac\x61\x3f\x71", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555576712d00 brk(0x555576733d00) = 0x555576733d00 brk(0x555576734000) = 0x555576734000 mprotect(0x7f4c38e63000, 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./strace-static-x86_64: Process 5084 attached , child_tidptr=0x555576712650) = 5084 [pid 5084] set_robust_list(0x555576712660, 24) = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5084] setpgid(0, 0) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "1000", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] write(1, "executing program\n", 18executing program ) = 18 [pid 5084] memfd_create("syzkaller", 0) = 3 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4c30800000 [pid 5084] 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 5084] munmap(0x7f4c30800000, 138412032) = 0 [pid 5084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5084] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5084] close(3) = 0 [pid 5084] close(4) = 0 [pid 5084] mkdir("./file0", 0777) = 0 [pid 5084] mount("/dev/loop0", "./file0", "hfsplus", MS_RDONLY, "") = 0 [pid 5084] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5084] mount(NULL, "./file0", NULL, MS_NOEXEC|MS_REMOUNT|MS_UNBINDABLE|MS_I_VERSION, NULL) = 0 [pid 5084] chdir("./file0") = 0 [pid 5084] creat("./bus", 000) = 4 [ 72.273872][ T5084] loop0: detected capacity change from 0 to 1024 [ 72.331469][ T5084] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN PTI [ 72.344170][ T5084] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 72.352621][ T5084] CPU: 0 PID: 5084 Comm: syz-executor328 Not tainted 6.10.0-rc6-syzkaller-00223-gc6653f49e4fd #0 [ 72.363124][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 72.373193][ T5084] RIP: 0010:hfsplus_rename_cat+0x4b3/0x1050 [ 72.379105][ T5084] Code: 60 42 80 3c 20 00 48 8b 5c 24 20 74 05 e8 e5 41 7b ff 48 8b 94 24 20 01 00 00 48 83 c3 40 48 89 d8 48 c1 e8 03 48 89 44 24 68 <42> 80 3c 20 00 48 89 54 24 08 74 0d 48 89 df e8 b9 41 7b ff 48 8b [ 72.398712][ T5084] RSP: 0018:ffffc9000341f4a0 EFLAGS: 00010202 [ 72.404775][ T5084] RAX: 0000000000000008 RBX: 0000000000000040 RCX: ffff888019f60000 [ 72.412743][ T5084] RDX: ffff88802351f000 RSI: 0000000000000000 RDI: ffffc9000341f5c0 [ 72.420712][ T5084] RBP: ffffc9000341f910 R08: ffffffff827dc634 R09: 0000000000000000 [ 72.428675][ T5084] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 72.436640][ T5084] R13: ffffc9000341f58c R14: ffffc9000341f620 R15: 1ffff92000683ea8 [ 72.444616][ T5084] FS: 0000555576712380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 72.453550][ T5084] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.460156][ T5084] CR2: 00007f6f45d95ed8 CR3: 0000000015f14000 CR4: 00000000003506f0 [ 72.468126][ T5084] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.476092][ T5084] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.484059][ T5084] Call Trace: [ 72.487339][ T5084] [ 72.490273][ T5084] ? __die_body+0x88/0xe0 [ 72.494616][ T5084] ? die_addr+0x108/0x140 [ 72.498977][ T5084] ? exc_general_protection+0x3dd/0x5d0 [ 72.504544][ T5084] ? asm_exc_general_protection+0x26/0x30 [ 72.510287][ T5084] ? hfsplus_bnode_read+0xf4/0x1e0 [ 72.515399][ T5084] ? hfsplus_rename_cat+0x4b3/0x1050 [ 72.520686][ T5084] ? __pfx_hfsplus_rename_cat+0x10/0x10 [ 72.526248][ T5084] ? number+0xb5e/0xf90 [ 72.530429][ T5084] ? hfsplus_unlink+0x161/0x790 [ 72.535281][ T5084] ? hfsplus_unlink+0x214/0x790 [ 72.540137][ T5084] ? __pfx_sprintf+0x10/0x10 [ 72.544734][ T5084] hfsplus_unlink+0x308/0x790 [ 72.549428][ T5084] ? __pfx_hfsplus_unlink+0x10/0x10 [ 72.554628][ T5084] ? __pfx___down_write_common+0x10/0x10 [ 72.560275][ T5084] ? __pfx___down_write_common+0x10/0x10 [ 72.565914][ T5084] hfsplus_rename+0xc8/0x1c0 [ 72.570508][ T5084] ? __pfx_hfsplus_rename+0x10/0x10 [ 72.575701][ T5084] vfs_rename+0xbdb/0xf00 [ 72.580033][ T5084] ? __pfx_vfs_rename+0x10/0x10 [ 72.584887][ T5084] ? security_path_rename+0x18b/0x220 [ 72.590279][ T5084] do_renameat2+0xd94/0x13f0 [ 72.594886][ T5084] ? __pfx_do_renameat2+0x10/0x10 [ 72.599916][ T5084] ? __virt_addr_valid+0x183/0x520 [ 72.605047][ T5084] ? __check_object_size+0x49c/0x900 [ 72.610339][ T5084] ? getname_flags+0x1fe/0x4f0 [ 72.615104][ T5084] __x64_sys_rename+0x86/0xa0 [ 72.619780][ T5084] do_syscall_64+0xf3/0x230 [ 72.624309][ T5084] ? clear_bhb_loop+0x35/0x90 [ 72.629013][ T5084] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 72.634912][ T5084] RIP: 0033:0x7f4c38defaa9 [ 72.639340][ T5084] 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 [ 72.658950][ T5084] RSP: 002b:00007fffcc5bfed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [ 72.667363][ T5084] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f4c38defaa9 [ 72.675334][ T5084] RDX: 00007f4c38defaa9 RSI: 00000000200001c0 RDI: 0000000020000180 [ 72.683308][ T5084] RBP: 00007f4c38e635f0 R08: 00005555767134c0 R09: 00005555767134c0 [ 72.691281][ T5084] R10: 00005555767134c0 R11: 0000000000000246 R12: 00007fffcc5bff00 [ 72.699253][ T5084] R13: 00007fffcc5c0128 R14: 431bde82d7b634db R15: 00007f4c38e3803b [ 72.707235][ T5084] [ 72.710269][ T5084] Modules linked in: [ 72.714668][ T5084] ---[ end trace 0000000000000000 ]--- [ 72.720161][ T5084] RIP: 0010:hfsplus_rename_cat+0x4b3/0x1050 [ 72.726290][ T5084] Code: 60 42 80 3c 20 00 48 8b 5c 24 20 74 05 e8 e5 41 7b ff 48 8b 94 24 20 01 00 00 48 83 c3 40 48 89 d8 48 c1 e8 03 48 89 44 24 68 <42> 80 3c 20 00 48 89 54 24 08 74 0d 48 89 df e8 b9 41 7b ff 48 8b [ 72.745981][ T5084] RSP: 0018:ffffc9000341f4a0 EFLAGS: 00010202 [ 72.752067][ T5084] RAX: 0000000000000008 RBX: 0000000000000040 RCX: ffff888019f60000 [ 72.760072][ T5084] RDX: ffff88802351f000 RSI: 0000000000000000 RDI: ffffc9000341f5c0 [ 72.768094][ T5084] RBP: ffffc9000341f910 R08: ffffffff827dc634 R09: 0000000000000000 [ 72.776182][ T5084] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 72.784171][ T5084] R13: ffffc9000341f58c R14: ffffc9000341f620 R15: 1ffff92000683ea8 [ 72.792226][ T5084] FS: 0000555576712380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 72.801218][ T5084] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.807848][ T5084] CR2: 0000561252451e10 CR3: 0000000015f14000 CR4: 00000000003506f0 [ 72.815850][ T5084] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.823819][ T5084] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.831883][ T5084] Kernel panic - not syncing: Fatal exception [ 72.838243][ T5084] Kernel Offset: disabled [ 72.842652][ T5084] Rebooting in 86400 seconds..