./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1770942403 <...> Warning: Permanently added '10.128.1.73' (ED25519) to the list of known hosts. execve("./syz-executor1770942403", ["./syz-executor1770942403"], 0x7ffc88f67250 /* 10 vars */) = 0 brk(NULL) = 0x555567673000 brk(0x555567673d00) = 0x555567673d00 arch_prctl(ARCH_SET_FS, 0x555567673380) = 0 set_tid_address(0x555567673650) = 5074 set_robust_list(0x555567673660, 24) = 0 rseq(0x555567673ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1770942403", 4096) = 28 getrandom("\x41\x77\xda\x06\xf5\x9c\xa6\xdb", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555567673d00 brk(0x555567694d00) = 0x555567694d00 brk(0x555567695000) = 0x555567695000 mprotect(0x7f4455938000, 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) = 0x7f444d400000 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(0x7f444d400000, 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 [ 70.014838][ T5074] loop0: detected capacity change from 0 to 32768 mount("/dev/loop0", "./bus", "jfs", 0, "") = 0 openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 chdir("./bus") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 70.104644][ T5074] find_entry called with index >= next_index [ 70.123614][ T5074] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI [ 70.135725][ T5074] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 70.144126][ T5074] CPU: 0 PID: 5074 Comm: syz-executor177 Not tainted 6.9.0-rc5-syzkaller #0 [ 70.152787][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 70.162830][ T5074] RIP: 0010:dtInsertEntry+0xd0c/0x1780 [ 70.168300][ T5074] Code: 83 e6 02 31 ff e8 e4 4e 73 fe 83 e3 02 75 3a e8 da 4b 73 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 [ 70.187895][ T5074] RSP: 0018:ffffc9000402f060 EFLAGS: 00010202 [ 70.194044][ T5074] RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff888022460000 [ 70.202007][ T5074] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 70.209986][ T5074] RBP: ffffc9000402f210 R08: ffffffff8322b48c R09: 1ffff1100d23b383 [ 70.217966][ T5074] R10: dffffc0000000000 R11: ffffed100d23b384 R12: ffff8880691d9eb0 [ 70.225942][ T5074] R13: ffffffffffffffff R14: dffffc0000000000 R15: 0000000000000008 [ 70.233910][ T5074] FS: 0000555567673380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 70.242833][ T5074] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.249408][ T5074] CR2: 000000000066c7e0 CR3: 000000007845e000 CR4: 00000000003506f0 [ 70.257545][ T5074] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.265508][ T5074] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.273480][ T5074] Call Trace: [ 70.276753][ T5074] [ 70.279709][ T5074] ? __die_body+0x88/0xe0 [ 70.284034][ T5074] ? die_addr+0x108/0x140 [ 70.288356][ T5074] ? exc_general_protection+0x3dd/0x5d0 [ 70.293934][ T5074] ? asm_exc_general_protection+0x26/0x30 [ 70.299648][ T5074] ? dtInsertEntry+0xcec/0x1780 [ 70.304488][ T5074] ? dtInsertEntry+0xd0c/0x1780 [ 70.309339][ T5074] ? __pfx_dtInsertEntry+0x10/0x10 [ 70.314461][ T5074] ? rcu_is_watching+0x15/0xb0 [ 70.319216][ T5074] ? __mark_inode_dirty+0x41c/0xe20 [ 70.324425][ T5074] dtInsert+0xbf1/0x6b00 [ 70.328661][ T5074] ? mark_lock+0x9a/0x350 [ 70.332984][ T5074] ? __lock_acquire+0x1346/0x1fd0 [ 70.338006][ T5074] ? __pfx_dtInsert+0x10/0x10 [ 70.342675][ T5074] ? __pfx_lock_acquire+0x10/0x10 [ 70.347690][ T5074] ? txLock+0x2b5/0x21a0 [ 70.351928][ T5074] ? __pfx_lock_release+0x10/0x10 [ 70.356943][ T5074] ? do_raw_spin_lock+0x14f/0x370 [ 70.361966][ T5074] ? do_raw_spin_unlock+0x13c/0x8b0 [ 70.367162][ T5074] ? dtSearch+0x1d59/0x2520 [ 70.371655][ T5074] ? kfree+0x153/0x3a0 [ 70.375716][ T5074] ? txLock+0x125b/0x21a0 [ 70.380058][ T5074] jfs_create+0x7ba/0xb90 [ 70.384385][ T5074] ? __pfx_jfs_create+0x10/0x10 [ 70.389268][ T5074] ? __pfx_jfs_lookup+0x10/0x10 [ 70.394124][ T5074] ? make_vfsuid+0x46/0x90 [ 70.398541][ T5074] ? bpf_lsm_inode_create+0x9/0x10 [ 70.403657][ T5074] ? security_inode_create+0xc2/0x110 [ 70.409016][ T5074] ? __pfx_jfs_create+0x10/0x10 [ 70.413863][ T5074] path_openat+0x1425/0x3240 [ 70.418460][ T5074] ? __pfx_path_openat+0x10/0x10 [ 70.423398][ T5074] do_filp_open+0x235/0x490 [ 70.427890][ T5074] ? __pfx_do_filp_open+0x10/0x10 [ 70.432909][ T5074] ? _raw_spin_unlock+0x28/0x50 [ 70.437757][ T5074] ? alloc_fd+0x59d/0x640 [ 70.442085][ T5074] do_sys_openat2+0x13e/0x1d0 [ 70.446755][ T5074] ? __pfx_do_sys_openat2+0x10/0x10 [ 70.451951][ T5074] ? lockdep_hardirqs_on+0x99/0x150 [ 70.457143][ T5074] ? _raw_spin_unlock_irq+0x2e/0x50 [ 70.462345][ T5074] ? ptrace_notify+0x279/0x380 [ 70.467143][ T5074] __x64_sys_openat+0x247/0x2a0 [ 70.471982][ T5074] ? __pfx___x64_sys_openat+0x10/0x10 [ 70.477355][ T5074] ? do_syscall_64+0x102/0x240 [ 70.482120][ T5074] do_syscall_64+0xf5/0x240 [ 70.486637][ T5074] ? clear_bhb_loop+0x35/0x90 [ 70.491309][ T5074] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 70.497216][ T5074] RIP: 0033:0x7f44558bf639 [ 70.501627][ 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 [ 70.521244][ T5074] RSP: 002b:00007ffcb5018af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 70.529657][ T5074] RAX: ffffffffffffffda RBX: 00007ffcb5018cd8 RCX: 00007f44558bf639 [ 70.537616][ T5074] RDX: 00000000000026e1 RSI: 0000000020000100 RDI: 00000000ffffff9c [ 70.545576][ T5074] RBP: 00007f4455938610 R08: 0000000000000000 R09: 0000000000000000 [ 70.553540][ T5074] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 70.561501][ T5074] R13: 00007ffcb5018cc8 R14: 0000000000000001 R15: 0000000000000001 [ 70.569486][ T5074] [ 70.572488][ T5074] Modules linked in: [ 70.577439][ T5074] ---[ end trace 0000000000000000 ]--- [ 70.583448][ T5074] RIP: 0010:dtInsertEntry+0xd0c/0x1780 [ 70.588935][ T5074] Code: 83 e6 02 31 ff e8 e4 4e 73 fe 83 e3 02 75 3a e8 da 4b 73 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 [ 70.608616][ T5074] RSP: 0018:ffffc9000402f060 EFLAGS: 00010202 [ 70.614742][ T5074] RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff888022460000 [ 70.622740][ T5074] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 70.630700][ T5074] RBP: ffffc9000402f210 R08: ffffffff8322b48c R09: 1ffff1100d23b383 [ 70.638711][ T5074] R10: dffffc0000000000 R11: ffffed100d23b384 R12: ffff8880691d9eb0 [ 70.646817][ T5074] R13: ffffffffffffffff R14: dffffc0000000000 R15: 0000000000000008 [ 70.654861][ T5074] FS: 0000555567673380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 70.664012][ T5074] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.670583][ T5074] CR2: 00007f1393a08ed8 CR3: 000000007845e000 CR4: 00000000003506f0 [ 70.678620][ T5074] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.686627][ T5074] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.694641][ T5074] Kernel panic - not syncing: Fatal exception [ 70.701068][ T5074] Kernel Offset: disabled [ 70.705394][ T5074] Rebooting in 86400 seconds..