Warning: Permanently added '10.128.0.146' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 231.200175] syz-executor619[7984]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] [ 231.223814] syz-executor619[7985]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] executing program executing program executing program executing program [ 231.334494] syz-executor619[7990]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] [ 231.364474] syz-executor619[8007]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 231.491513] print_req_error: I/O error, dev loop5, sector 0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 233.792819] syz-executor619[8541]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 238.718146] syz-executor619[9562]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 239.164675] syz-executor619[9648]: segfault at 0 ip 0000000000402602 sp 00007f9cae96f170 error 4 in syz-executor619341481[401000+9a000] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 239.319982] print_req_error: I/O error, dev loop0, sector 0 executing program executing program executing program [ 239.398648] syz-executor619[9694]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 240.692553] syz-executor619[9949]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 241.002757] syz-executor619[10050]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] executing program executing program executing program executing program executing program executing program [ 241.140490] syz-executor619[10060]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 241.383218] syz-executor619[10113]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 241.607875] syz-executor619[10171]: segfault at 0 ip 0000000000402602 sp 00007f9cae990170 error 4 in syz-executor619341481[401000+9a000] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 241.780470] print_req_error: I/O error, dev loop1, sector 0 executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 241.991652] syz-executor619[10237]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] [ 242.020396] syz-executor619[10254]: segfault at 0 ip 0000000000402602 sp 00007f9cae9b1170 error 4 in syz-executor619341481[401000+9a000] [ 242.119600] kasan: CONFIG_KASAN_INLINE enabled [ 242.124532] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 242.134783] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 242.141010] Modules linked in: [ 242.144184] CPU: 1 PID: 7975 Comm: syz-executor619 Not tainted 4.14.227-syzkaller #0 [ 242.152041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 242.161386] task: ffff8880b3650000 task.stack: ffff888099268000 [ 242.167441] RIP: 0010:kobject_uevent_env+0xb2/0xf40 [ 242.172443] RSP: 0018:ffff88809926fb28 EFLAGS: 00010206 [ 242.177893] RAX: 0000000000000018 RBX: 0000000000000002 RCX: 1ffff110166ca116 [ 242.185160] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000000000c0 [ 242.192428] RBP: ffff8880b509cb50 R08: ffffffff8b9be500 R09: 0000000000000001 [ 242.199700] R10: 0000000000000000 R11: ffff8880b3650000 R12: 00000000000000a0 [ 242.206948] R13: dffffc0000000000 R14: ffff8880b509ca48 R15: 00000000000000a0 [ 242.214212] FS: 0000000001d47300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 242.222417] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 242.228277] CR2: 00000000004b2843 CR3: 00000000b07a9000 CR4: 00000000001406e0 [ 242.235532] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 242.242805] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 242.250063] Call Trace: [ 242.252743] ? lock_downgrade+0x740/0x740 [ 242.256875] loop_clr_fd+0x59f/0xc20 [ 242.260572] lo_ioctl+0x895/0x1cd0 [ 242.264115] ? path_lookupat+0x780/0x780 [ 242.268162] ? debug_check_no_obj_freed+0x2c0/0x680 [ 242.273170] ? loop_set_status64+0xe0/0xe0 [ 242.277403] blkdev_ioctl+0x540/0x1830 [ 242.281391] ? blkpg_ioctl+0x8d0/0x8d0 [ 242.285260] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 242.290341] ? debug_check_no_obj_freed+0x2c0/0x680 [ 242.295657] block_ioctl+0xd9/0x120 [ 242.299388] ? blkdev_fallocate+0x3a0/0x3a0 [ 242.303709] do_vfs_ioctl+0x75a/0xff0 [ 242.307587] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 242.313019] ? ioctl_preallocate+0x1a0/0x1a0 [ 242.317422] ? kmem_cache_free+0x23a/0x2b0 [ 242.321654] ? putname+0xcd/0x110 [ 242.325105] ? do_sys_open+0x208/0x410 [ 242.328994] ? filp_open+0x60/0x60 [ 242.332511] ? security_file_ioctl+0x83/0xb0 [ 242.336895] SyS_ioctl+0x7f/0xb0 [ 242.340261] ? do_vfs_ioctl+0xff0/0xff0 [ 242.344218] do_syscall_64+0x1d5/0x640 [ 242.348102] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 242.353280] RIP: 0033:0x44a2e7 [ 242.356514] RSP: 002b:00007ffecac731d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 242.364305] RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 000000000044a2e7 [ 242.371557] RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000003 [ 242.378805] RBP: 00007ffecac73260 R08: 0000000000000000 R09: 00007ffecac73070 [ 242.386055] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 242.393311] R13: 00000000000027f3 R14: 00007ffecac73250 R15: 00007ffecac73204 [ 242.400563] Code: 03 42 80 3c 28 00 0f 85 e4 0b 00 00 4d 8b 64 24 18 4d 85 e4 0f 84 01 0c 00 00 e8 2a e8 59 fa 49 8d 7c 24 20 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 db 0b 00 00 49 8b 6c 24 20 48 85 ed 74 b0 [ 242.419646] RIP: kobject_uevent_env+0xb2/0xf40 RSP: ffff88809926fb28 [ 242.435247] ---[ end trace 49c517c9768ff6fc ]--- [ 242.440115] Kernel panic - not syncing: Fatal exception [ 242.445872] Kernel Offset: disabled [ 242.449626] Rebooting in 86400 seconds..