./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3302851691 <...> Warning: Permanently added '10.128.0.60' (ED25519) to the list of known hosts. execve("./syz-executor3302851691", ["./syz-executor3302851691"], 0x7ffda7ea4b60 /* 10 vars */) = 0 brk(NULL) = 0x55558093f000 brk(0x55558093fd00) = 0x55558093fd00 arch_prctl(ARCH_SET_FS, 0x55558093f380) = 0 set_tid_address(0x55558093f650) = 5074 set_robust_list(0x55558093f660, 24) = 0 rseq(0x55558093fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3302851691", 4096) = 28 getrandom("\xaa\x19\x8a\x7a\xd6\xf7\x08\x97", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558093fd00 brk(0x555580960d00) = 0x555580960d00 brk(0x555580961000) = 0x555580961000 mprotect(0x7f0a9e91f000, 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 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0a96400000 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"..., 16777216) = 16777216 munmap(0x7f0a96400000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./bus", 0777) = 0 mount("/dev/loop0", "./bus", "jfs", 0, "") = 0 openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [ 73.967707][ T5074] loop0: detected capacity change from 0 to 32768 chdir("./bus") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOFOLLOW|O_NOATIME|FASYNC, 000) = 4 [ 74.048713][ T5074] find_entry called with index >= next_index [ 74.057898][ T5074] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI [ 74.069989][ T5074] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 74.078395][ T5074] CPU: 0 PID: 5074 Comm: syz-executor330 Not tainted 6.9.0-rc6-syzkaller-00234-g7367539ad4b0 #0 [ 74.088801][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 74.098851][ T5074] RIP: 0010:dtInsertEntry+0xd0c/0x1780 [ 74.104325][ T5074] Code: 83 e6 02 31 ff e8 14 c6 72 fe 83 e3 02 75 3a e8 0a c3 72 fe 48 8b 9c 24 a8 00 00 00 48 83 c3 08 48 89 d8 48 c1 e8 03 4c 89 f2 <42> 0f b6 04 30 84 c0 74 3e 89 d9 80 e1 07 38 c1 7c 35 48 89 df e8 [ 74.123941][ T5074] RSP: 0018:ffffc900034c7060 EFLAGS: 00010202 [ 74.130006][ T5074] RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff8880222e9e00 [ 74.137992][ T5074] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 74.145995][ T5074] RBP: ffffc900034c7210 R08: ffffffff83234cbc R09: 1ffff11008e485d3 [ 74.153987][ T5074] R10: dffffc0000000000 R11: ffffed1008e485d4 R12: ffff888047243130 [ 74.161960][ T5074] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000002 [ 74.169948][ T5074] FS: 000055558093f380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 74.179002][ T5074] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.185595][ T5074] CR2: 000000000066c7e0 CR3: 0000000078c8c000 CR4: 00000000003506f0 [ 74.193577][ T5074] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.201558][ T5074] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.209533][ T5074] Call Trace: [ 74.212895][ T5074] [ 74.215826][ T5074] ? __die_body+0x88/0xe0 [ 74.220157][ T5074] ? die_addr+0x108/0x140 [ 74.224482][ T5074] ? exc_general_protection+0x3dd/0x5d0 [ 74.230056][ T5074] ? asm_exc_general_protection+0x26/0x30 [ 74.235951][ T5074] ? dtInsertEntry+0xcec/0x1780 [ 74.240813][ T5074] ? dtInsertEntry+0xd0c/0x1780 [ 74.245672][ T5074] ? __pfx_dtInsertEntry+0x10/0x10 [ 74.250798][ T5074] ? rcu_is_watching+0x15/0xb0 [ 74.255563][ T5074] ? __mark_inode_dirty+0x41c/0xe20 [ 74.260782][ T5074] dtInsert+0xbf1/0x6b00 [ 74.265023][ T5074] ? mark_lock+0x9a/0x350 [ 74.269353][ T5074] ? __lock_acquire+0x1346/0x1fd0 [ 74.274384][ T5074] ? __pfx_dtInsert+0x10/0x10 [ 74.279062][ T5074] ? __pfx_lock_acquire+0x10/0x10 [ 74.284081][ T5074] ? txLock+0x2b5/0x21a0 [ 74.288325][ T5074] ? __pfx_lock_release+0x10/0x10 [ 74.293341][ T5074] ? do_raw_spin_lock+0x14f/0x370 [ 74.298371][ T5074] ? do_raw_spin_unlock+0x13c/0x8b0 [ 74.303586][ T5074] ? dtSearch+0x1d59/0x2520 [ 74.308111][ T5074] ? kfree+0x153/0x3a0 [ 74.312206][ T5074] ? txLock+0x125b/0x21a0 [ 74.316579][ T5074] jfs_create+0x7ba/0xb90 [ 74.320918][ T5074] ? __pfx_jfs_create+0x10/0x10 [ 74.325768][ T5074] ? __pfx_jfs_lookup+0x10/0x10 [ 74.330626][ T5074] ? make_vfsuid+0x46/0x90 [ 74.335055][ T5074] ? bpf_lsm_inode_create+0x9/0x10 [ 74.340167][ T5074] ? security_inode_create+0xc2/0x110 [ 74.345534][ T5074] ? __pfx_jfs_create+0x10/0x10 [ 74.350392][ T5074] path_openat+0x1425/0x3240 [ 74.355094][ T5074] ? __pfx_path_openat+0x10/0x10 [ 74.360055][ T5074] do_filp_open+0x235/0x490 [ 74.364570][ T5074] ? __pfx_do_filp_open+0x10/0x10 [ 74.369607][ T5074] ? _raw_spin_unlock+0x28/0x50 [ 74.374464][ T5074] ? alloc_fd+0x59d/0x640 [ 74.378988][ T5074] do_sys_openat2+0x13e/0x1d0 [ 74.383672][ T5074] ? __pfx_do_sys_openat2+0x10/0x10 [ 74.388874][ T5074] ? lockdep_hardirqs_on+0x99/0x150 [ 74.394149][ T5074] ? _raw_spin_unlock_irq+0x2e/0x50 [ 74.399378][ T5074] ? ptrace_notify+0x279/0x380 [ 74.404157][ T5074] __x64_sys_openat+0x247/0x2a0 [ 74.409018][ T5074] ? __pfx___x64_sys_openat+0x10/0x10 [ 74.414833][ T5074] ? do_syscall_64+0x102/0x240 [ 74.419609][ T5074] do_syscall_64+0xf5/0x240 [ 74.424117][ T5074] ? clear_bhb_loop+0x35/0x90 [ 74.428796][ T5074] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.434702][ T5074] RIP: 0033:0x7f0a9e8a6639 [ 74.439112][ T5074] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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 [ 74.458712][ T5074] RSP: 002b:00007ffca30abdd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 74.467128][ T5074] RAX: ffffffffffffffda RBX: 00007ffca30abfb8 RCX: 00007f0a9e8a6639 [ 74.475096][ T5074] RDX: 000000000000275a RSI: 00000000200000c0 RDI: 00000000ffffff9c [ 74.483065][ T5074] RBP: 00007f0a9e91f610 R08: 0000000000000000 R09: 0000000000000000 [ 74.491045][ T5074] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 74.499032][ T5074] R13: 00007ffca30abfa8 R14: 0000000000000001 R15: 0000000000000001 [ 74.508397][ T5074] [ 74.511421][ T5074] Modules linked in: [ 74.516197][ T5074] ---[ end trace 0000000000000000 ]--- [ 74.521703][ T5074] RIP: 0010:dtInsertEntry+0xd0c/0x1780 [ 74.527237][ T5074] Code: 83 e6 02 31 ff e8 14 c6 72 fe 83 e3 02 75 3a e8 0a c3 72 fe 48 8b 9c 24 a8 00 00 00 48 83 c3 08 48 89 d8 48 c1 e8 03 4c 89 f2 <42> 0f b6 04 30 84 c0 74 3e 89 d9 80 e1 07 38 c1 7c 35 48 89 df e8 [ 74.547112][ T5074] RSP: 0018:ffffc900034c7060 EFLAGS: 00010202 [ 74.553363][ T5074] RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff8880222e9e00 [ 74.561425][ T5074] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 74.569463][ T5074] RBP: ffffc900034c7210 R08: ffffffff83234cbc R09: 1ffff11008e485d3 [ 74.577517][ T5074] R10: dffffc0000000000 R11: ffffed1008e485d4 R12: ffff888047243130 [ 74.585511][ T5074] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000002 [ 74.593548][ T5074] FS: 000055558093f380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 74.602540][ T5074] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.609266][ T5074] CR2: 000000000066c7e0 CR3: 0000000078c8c000 CR4: 00000000003506f0 [ 74.617310][ T5074] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.625287][ T5074] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.633379][ T5074] Kernel panic - not syncing: Fatal exception [ 74.639732][ T5074] Kernel Offset: disabled [ 74.644059][ T5074] Rebooting in 86400 seconds..