[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 33.688137] random: sshd: uninitialized urandom read (32 bytes read) [ 34.011615] kauditd_printk_skb: 10 callbacks suppressed [ 34.011622] audit: type=1400 audit(1569883260.735:35): avc: denied { map } for pid=6853 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 34.053789] random: sshd: uninitialized urandom read (32 bytes read) [ 34.681502] random: sshd: uninitialized urandom read (32 bytes read) [ 34.875012] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.46' (ECDSA) to the list of known hosts. [ 40.336618] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 40.449666] audit: type=1400 audit(1569883267.165:36): avc: denied { map } for pid=6866 comm="syz-executor614" path="/root/syz-executor614314932" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 40.452835] kasan: CONFIG_KASAN_INLINE enabled [ 40.481001] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 40.488494] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 40.495005] Modules linked in: [ 40.498182] CPU: 0 PID: 6866 Comm: syz-executor614 Not tainted 4.14.146 #0 [ 40.505259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.514593] task: ffff88807fbf8640 task.stack: ffff8880a87e0000 [ 40.520643] RIP: 0010:rb_erase+0x29/0x1c10 [ 40.524877] RSP: 0018:ffff8880a87e79d0 EFLAGS: 00010282 [ 40.530224] RAX: dffffc0000000000 RBX: ffff88807a3fc230 RCX: 1ffff110150fcf12 [ 40.537471] RDX: 0000000000000001 RSI: ffffffff8924d940 RDI: 0000000000000008 [ 40.544747] RBP: ffff8880a87e7a18 R08: ffffffff88d17b2c R09: 0000000000001b5e [ 40.551994] R10: ffff8880a87e77d0 R11: ffff88807fbf8640 R12: 0000000000000000 [ 40.559242] R13: ffff888087c703b0 R14: 0000000000000000 R15: ffffffff867a3540 [ 40.566489] FS: 00005555566bf880(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 [ 40.574701] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.580572] CR2: 0000000020000084 CR3: 000000007fee2000 CR4: 00000000001406f0 [ 40.587819] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.595079] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.602327] Call Trace: [ 40.604896] integrity_inode_free+0x126/0x320 [ 40.610162] security_inode_free+0x19/0x90 [ 40.614377] __destroy_inode+0x1ef/0x4e0 [ 40.618412] destroy_inode+0x50/0x120 [ 40.622185] evict+0x3e6/0x630 [ 40.625353] iput+0x471/0x900 [ 40.628437] ? ext4_nfs_commit_metadata+0x2f0/0x2f0 [ 40.633443] ext4_ioctl+0x16b0/0x3920 [ 40.637228] ? avc_ss_reset+0x110/0x110 [ 40.641189] ? kasan_slab_free+0x75/0xc0 [ 40.645227] ? ext4_ioctl_check_immutable+0x1c0/0x1c0 [ 40.650394] ? find_held_lock+0x35/0x130 [ 40.654442] ? debug_check_no_obj_freed+0x2aa/0x7b7 [ 40.659451] ? __might_sleep+0x93/0xb0 [ 40.663322] ? ext4_ioctl_check_immutable+0x1c0/0x1c0 [ 40.668513] do_vfs_ioctl+0x7ae/0x1060 [ 40.672376] ? selinux_file_mprotect+0x5d0/0x5d0 [ 40.677118] ? ioctl_preallocate+0x1c0/0x1c0 [ 40.681501] ? putname+0xe0/0x120 [ 40.684971] ? do_sys_open+0x221/0x430 [ 40.688929] ? security_file_ioctl+0x7d/0xb0 [ 40.693334] ? security_file_ioctl+0x89/0xb0 [ 40.697730] SyS_ioctl+0x8f/0xc0 [ 40.701074] ? do_vfs_ioctl+0x1060/0x1060 [ 40.705452] do_syscall_64+0x1e8/0x640 [ 40.709328] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.714243] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 40.719429] RIP: 0033:0x440149 [ 40.722595] RSP: 002b:00007ffd5a8f8cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 40.730286] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440149 [ 40.738052] RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000003 [ 40.745315] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 40.752568] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004019d0 [ 40.759815] R13: 0000000000401a60 R14: 0000000000000000 R15: 0000000000000000 [ 40.767068] Code: 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 57 41 56 49 89 fe 48 83 c7 08 48 89 fa 41 55 48 c1 ea 03 41 54 53 48 83 ec 20 <80> 3c 02 00 0f 85 0c 11 00 00 49 8d 7e 10 4d 8b 7e 08 48 b8 00 [ 40.786149] RIP: rb_erase+0x29/0x1c10 RSP: ffff8880a87e79d0 [ 40.791925] ---[ end trace 1c04fef3d5590ce3 ]--- [ 40.796872] Kernel panic - not syncing: Fatal exception [ 40.803766] Kernel Offset: disabled [ 40.807386] Rebooting in 86400 seconds..