./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3528674679 <...> Warning: Permanently added '10.128.0.145' (ED25519) to the list of known hosts. execve("./syz-executor3528674679", ["./syz-executor3528674679"], 0x7ffc556bd360 /* 10 vars */) = 0 brk(NULL) = 0x55557336a000 brk(0x55557336ad00) = 0x55557336ad00 arch_prctl(ARCH_SET_FS, 0x55557336a380) = 0 set_tid_address(0x55557336a650) = 5077 set_robust_list(0x55557336a660, 24) = 0 rseq(0x55557336aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3528674679", 4096) = 28 getrandom("\x8f\x09\x6f\x5e\xb2\x41\x75\x13", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557336ad00 brk(0x55557338bd00) = 0x55557338bd00 brk(0x55557338c000) = 0x55557338c000 mprotect(0x7fb34d33d000, 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 5078 attached , child_tidptr=0x55557336a650) = 5078 [pid 5078] set_robust_list(0x55557336a660, 24) = 0 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5078] setpgid(0, 0) = 0 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1000", 4) = 4 [pid 5078] close(3executing program ) = 0 [pid 5078] write(1, "executing program\n", 18) = 18 [pid 5078] memfd_create("syzkaller", 0) = 3 [pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb344e00000 [pid 5078] 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 [pid 5078] munmap(0x7fb344e00000, 138412032) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5078] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5078] close(3) = 0 [pid 5078] close(4) = 0 [pid 5078] mkdir("./bus", 0777) = 0 [pid 5078] mount("/dev/loop0", "./bus", "jfs", 0, "") = 0 [pid 5078] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5078] chdir("./bus") = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 57.058514][ T5078] loop0: detected capacity change from 0 to 32768 [pid 5078] mkdir("./bus", 000) = 0 [ 57.106701][ T5078] find_entry called with index >= next_index [ 57.116126][ T5078] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI [ 57.128724][ T5078] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 57.137154][ T5078] CPU: 0 PID: 5078 Comm: syz-executor352 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 [ 57.147634][ T5078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 57.157685][ T5078] RIP: 0010:dtInsertEntry+0xd0c/0x1780 [ 57.163142][ T5078] Code: 83 e6 02 31 ff e8 c4 8c 72 fe 83 e3 02 75 3a e8 ba 89 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 [ 57.182912][ T5078] RSP: 0018:ffffc9000338f060 EFLAGS: 00010202 [ 57.188966][ T5078] RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff888023ab9e00 [ 57.196922][ T5078] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 57.204879][ T5078] RBP: ffffc9000338f210 R08: ffffffff83239c4c R09: 1ffff1100fbad00b [ 57.212837][ T5078] R10: dffffc0000000000 R11: ffffed100fbad00c R12: ffff88807dd682f0 [ 57.220795][ T5078] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000002 [ 57.228752][ T5078] FS: 000055557336a380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 57.237661][ T5078] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.244224][ T5078] CR2: 000055da686c8b80 CR3: 0000000023392000 CR4: 00000000003506f0 [ 57.252207][ T5078] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.260251][ T5078] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.268392][ T5078] Call Trace: [ 57.271662][ T5078] [ 57.274693][ T5078] ? __die_body+0x88/0xe0 [ 57.279032][ T5078] ? die_addr+0x108/0x140 [ 57.283442][ T5078] ? exc_general_protection+0x3dd/0x5d0 [ 57.288993][ T5078] ? asm_exc_general_protection+0x26/0x30 [ 57.294716][ T5078] ? dtInsertEntry+0xcec/0x1780 [ 57.299642][ T5078] ? dtInsertEntry+0xd0c/0x1780 [ 57.304480][ T5078] ? __pfx_dtInsertEntry+0x10/0x10 [ 57.309577][ T5078] ? rcu_is_watching+0x15/0xb0 [ 57.314412][ T5078] ? __mark_inode_dirty+0x41c/0xe20 [ 57.319594][ T5078] dtInsert+0xbf1/0x6b00 [ 57.323842][ T5078] ? mark_lock+0x9a/0x350 [ 57.328186][ T5078] ? __lock_acquire+0x1346/0x1fd0 [ 57.333229][ T5078] ? __pfx_dtInsert+0x10/0x10 [ 57.337914][ T5078] ? __pfx_lock_acquire+0x10/0x10 [ 57.342934][ T5078] ? txLock+0x2b5/0x21a0 [ 57.347182][ T5078] ? __pfx_lock_release+0x10/0x10 [ 57.352216][ T5078] ? do_raw_spin_lock+0x14f/0x370 [ 57.357230][ T5078] ? do_raw_spin_unlock+0x13c/0x8b0 [ 57.362418][ T5078] ? dtSearch+0x1d59/0x2520 [ 57.366921][ T5078] ? kfree+0x149/0x360 [ 57.370977][ T5078] ? txLock+0x125b/0x21a0 [ 57.375299][ T5078] jfs_create+0x7ba/0xb90 [ 57.379615][ T5078] ? __pfx_jfs_create+0x10/0x10 [ 57.384551][ T5078] ? __pfx_jfs_lookup+0x10/0x10 [ 57.389413][ T5078] ? make_vfsuid+0x46/0x90 [ 57.393812][ T5078] ? bpf_lsm_inode_create+0x9/0x10 [ 57.398912][ T5078] ? security_inode_create+0xc2/0x110 [ 57.404281][ T5078] ? __pfx_jfs_create+0x10/0x10 [ 57.409119][ T5078] path_openat+0x1425/0x3280 [ 57.413718][ T5078] ? __pfx_path_openat+0x10/0x10 [ 57.418668][ T5078] do_filp_open+0x235/0x490 [ 57.423164][ T5078] ? __pfx_do_filp_open+0x10/0x10 [ 57.428204][ T5078] ? _raw_spin_unlock+0x28/0x50 [ 57.433070][ T5078] ? alloc_fd+0x5a1/0x640 [ 57.437396][ T5078] do_sys_openat2+0x13e/0x1d0 [ 57.442057][ T5078] ? __pfx_do_sys_openat2+0x10/0x10 [ 57.447236][ T5078] ? lockdep_hardirqs_on+0x99/0x150 [ 57.452416][ T5078] ? _raw_spin_unlock_irq+0x2e/0x50 [ 57.457599][ T5078] ? ptrace_notify+0x279/0x380 [ 57.462350][ T5078] __x64_sys_openat+0x247/0x2a0 [ 57.467184][ T5078] ? __pfx___x64_sys_openat+0x10/0x10 [ 57.472545][ T5078] ? do_syscall_64+0x100/0x230 [ 57.477291][ T5078] do_syscall_64+0xf3/0x230 [ 57.481778][ T5078] ? clear_bhb_loop+0x35/0x90 [ 57.486439][ T5078] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 57.492320][ T5078] RIP: 0033:0x7fb34d2c4a99 [ 57.496718][ T5078] 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 [ 57.516401][ T5078] RSP: 002b:00007ffc6c0b9d08 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 57.524808][ T5078] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb34d2c4a99 [ 57.532769][ T5078] RDX: 000000000000275a RSI: 0000000020000080 RDI: 00000000ffffff9c [ 57.540723][ T5078] RBP: 00007fb34d33d5f0 R08: 000055557336b4c0 R09: 000055557336b4c0 [ 57.548769][ T5078] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc6c0b9d30 [ 57.556750][ T5078] R13: 00007ffc6c0b9f58 R14: 431bde82d7b634db R15: 00007fb34d30d03b [ 57.564715][ T5078] [ 57.567719][ T5078] Modules linked in: [ 57.572030][ T5078] ---[ end trace 0000000000000000 ]--- [ 57.577503][ T5078] RIP: 0010:dtInsertEntry+0xd0c/0x1780 [ 57.582990][ T5078] Code: 83 e6 02 31 ff e8 c4 8c 72 fe 83 e3 02 75 3a e8 ba 89 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 [ 57.602641][ T5078] RSP: 0018:ffffc9000338f060 EFLAGS: 00010202 [ 57.608717][ T5078] RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff888023ab9e00 [ 57.616717][ T5078] RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 57.624719][ T5078] RBP: ffffc9000338f210 R08: ffffffff83239c4c R09: 1ffff1100fbad00b [ 57.632717][ T5078] R10: dffffc0000000000 R11: ffffed100fbad00c R12: ffff88807dd682f0 [ 57.640739][ T5078] R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000002 [ 57.648719][ T5078] FS: 000055557336a380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 57.657681][ T5078] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.664296][ T5078] CR2: 000055da686c8b80 CR3: 0000000023392000 CR4: 00000000003506f0 [ 57.672289][ T5078] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.680293][ T5078] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.688250][ T5078] Kernel panic - not syncing: Fatal exception [ 57.694520][ T5078] Kernel Offset: disabled [ 57.698845][ T5078] Rebooting in 86400 seconds..