./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1417122123 <...> Warning: Permanently added '10.128.0.139' (ECDSA) to the list of known hosts. execve("./syz-executor1417122123", ["./syz-executor1417122123"], 0x7fff64c36140 /* 10 vars */) = 0 brk(NULL) = 0x55555732c000 brk(0x55555732cc40) = 0x55555732cc40 arch_prctl(ARCH_SET_FS, 0x55555732c300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1417122123", 4096) = 28 brk(0x55555734dc40) = 0x55555734dc40 brk(0x55555734e000) = 0x55555734e000 mprotect(0x7f012fee0000, 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 creat("./file0", 000) = 3 syzkaller login: [ 40.040050][ T3606] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 40.051792][ T3606] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 40.060186][ T3606] CPU: 1 PID: 3606 Comm: syz-executor141 Not tainted 6.1.0-rc1-next-20221019-syzkaller #0 [ 40.070064][ T3606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 40.080112][ T3606] RIP: 0010:_parse_integer_fixup_radix+0x60/0x290 [ 40.086527][ T3606] Code: 02 00 00 41 8b 2c 24 31 ff 89 ee e8 4a ae 76 fd 85 ed 75 62 e8 71 b1 76 fd 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 48 89 da 83 e2 07 38 d0 7f 08 84 c0 0f 85 e2 01 00 00 [ 40.106128][ T3606] RSP: 0018:ffffc90003d3fa40 EFLAGS: 00010246 [ 40.112183][ T3606] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 40.120144][ T3606] RDX: 0000000000000000 RSI: ffffffff8405d49f RDI: 0000000000000005 [ 40.128107][ T3606] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 [ 40.136067][ T3606] R10: 0000000000000000 R11: 000000000008c001 R12: ffffc90003d3fa90 [ 40.144032][ T3606] R13: ffffc90003d3fbd8 R14: 000000007fffffff R15: ffff8880798524d0 [ 40.151991][ T3606] FS: 000055555732c300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 40.160909][ T3606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.167490][ T3606] CR2: 0000000020000000 CR3: 000000007b427000 CR4: 00000000003506e0 [ 40.175451][ T3606] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.183410][ T3606] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.191376][ T3606] Call Trace: [ 40.194643][ T3606] [ 40.197563][ T3606] simple_strntoull+0x88/0x160 [ 40.202328][ T3606] ? simple_strntoull+0x0/0x160 [ 40.207174][ T3606] ? lock_release+0x5cb/0x810 [ 40.211863][ T3606] ? lock_release+0x0/0x810 [ 40.216355][ T3606] ? do_raw_spin_lock+0x0/0x2a0 [ 40.221193][ T3606] memparse+0x72/0x180 [ 40.225254][ T3606] ? memparse+0x0/0x180 [ 40.229399][ T3606] ? __fs_parse+0x269/0x810 [ 40.233895][ T3606] shmem_parse_one+0x6a3/0xa60 [ 40.238660][ T3606] ? shmem_parse_one+0x0/0xa60 [ 40.243421][ T3606] ? slab_free_freelist_hook+0x8b/0x1c0 [ 40.248959][ T3606] ? bpf_lsm_sb_alloc_security-0xb/0x10 [ 40.254492][ T3606] ? shmem_parse_one+0x0/0xa60 [ 40.259248][ T3606] vfs_parse_fs_param+0x1f9/0x3c0 [ 40.264266][ T3606] vfs_parse_fs_string+0xdb/0x170 [ 40.269280][ T3606] ? vfs_parse_fs_string+0x0/0x170 [ 40.274383][ T3606] ? shmem_init_fs_context+0x41/0x270 [ 40.279750][ T3606] ? ____kasan_slab_free-0xf/0x1c0 [ 40.284855][ T3606] ? shmem_init_fs_context+0x0/0x270 [ 40.290138][ T3606] ? shmem_init_fs_context+0x1ec/0x270 [ 40.295595][ T3606] ? bpf_lsm_sb_mnt_opts_compat-0xb/0x10 [ 40.301220][ T3606] shmem_parse_options+0x15f/0x240 [ 40.306326][ T3606] path_mount+0x12de/0x1e20 [ 40.310818][ T3606] ? kmem_cache_free+0xea/0x5b0 [ 40.315662][ T3606] ? path_mount+0x0/0x1e20 [ 40.320085][ T3606] ? putname+0xfe/0x140 [ 40.324241][ T3606] __x64_sys_mount+0x27f/0x300 [ 40.329007][ T3606] ? __x64_sys_mount+0x0/0x300 [ 40.333759][ T3606] ? _raw_spin_unlock_irq+0x2a/0x40 [ 40.338949][ T3606] ? ptrace_notify+0xfa/0x140 [ 40.343616][ T3606] do_syscall_64+0x35/0xb0 [ 40.348025][ T3606] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 40.353912][ T3606] RIP: 0033:0x7f012fe73e09 [ 40.358313][ T3606] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 40.379119][ T3606] RSP: 002b:00007ffed54dd188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 40.387535][ T3606] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f012fe73e09 [ 40.395500][ T3606] RDX: 0000000020000040 RSI: 0000000020000000 RDI: 0000000000000000 [ 40.403458][ T3606] RBP: 00007f012fe37d20 R08: 0000000020000180 R09: 0000000000000000 [ 40.411416][ T3606] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f012fe37db0 [ 40.419371][ T3606] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 40.427335][ T3606] [ 40.430341][ T3606] Modules linked in: [ 40.434581][ T3606] ---[ end trace 0000000000000000 ]--- [ 40.440113][ T3606] RIP: 0010:_parse_integer_fixup_radix+0x60/0x290 [ 40.446630][ T3606] Code: 02 00 00 41 8b 2c 24 31 ff 89 ee e8 4a ae 76 fd 85 ed 75 62 e8 71 b1 76 fd 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 48 89 da 83 e2 07 38 d0 7f 08 84 c0 0f 85 e2 01 00 00 [ 40.466345][ T3606] RSP: 0018:ffffc90003d3fa40 EFLAGS: 00010246 [ 40.472503][ T3606] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 40.480497][ T3606] RDX: 0000000000000000 RSI: ffffffff8405d49f RDI: 0000000000000005 [ 40.488513][ T3606] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 [ 40.496519][ T3606] R10: 0000000000000000 R11: 000000000008c001 R12: ffffc90003d3fa90 [ 40.504516][ T3606] R13: ffffc90003d3fbd8 R14: 000000007fffffff R15: ffff8880798524d0 [ 40.512516][ T3606] FS: 000055555732c300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 40.521482][ T3606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.528075][ T3606] CR2: 0000000020000000 CR3: 000000007b427000 CR4: 00000000003506e0 [ 40.536079][ T3606] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.544210][ T3606] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.552240][ T3606] Kernel panic - not syncing: Fatal exception [ 40.558469][ T3606] Kernel Offset: disabled [ 40.562794][ T3606] Rebooting in 86400 seconds..