[ 37.265617] audit: type=1800 audit(1583119100.675:33): pid=7378 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 37.292261] audit: type=1800 audit(1583119100.675:34): pid=7378 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 [ 37.694836] random: sshd: uninitialized urandom read (32 bytes read) [ 37.924135] audit: type=1400 audit(1583119101.335:35): avc: denied { map } for pid=7549 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 [ 37.982306] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 38.747499] random: sshd: uninitialized urandom read (32 bytes read) [ 38.951280] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.45' (ECDSA) to the list of known hosts. [ 44.480734] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 44.616664] audit: type=1400 audit(1583119108.025:36): avc: denied { map } for pid=7561 comm="syz-executor878" path="/root/syz-executor878422753" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 44.620012] kasan: CONFIG_KASAN_INLINE enabled [ 44.647829] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 44.655227] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 44.661453] Modules linked in: [ 44.664631] CPU: 1 PID: 7561 Comm: syz-executor878 Not tainted 4.14.172-syzkaller #0 [ 44.672489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.681866] task: ffff88808f458340 task.stack: ffff88807dea8000 [ 44.687907] RIP: 0010:rb_erase+0x29/0x19b0 [ 44.692133] RSP: 0018:ffff88807deafa68 EFLAGS: 00010292 [ 44.697479] RAX: dffffc0000000000 RBX: ffff8880961c43b0 RCX: 1ffff1100fbd5f26 [ 44.704767] RDX: 0000000000000001 RSI: ffffffff8a659e20 RDI: 0000000000000008 [ 44.712020] RBP: 0000000000000000 R08: ffffffff8a0f5c4c R09: 0000000000001c06 [ 44.719297] R10: ffff88807deaf870 R11: ffff88808f458340 R12: ffff8880961be3f0 [ 44.726550] R13: 0000000000000000 R14: ffff8880961be478 R15: ffffffff8a659e20 [ 44.733802] FS: 0000000000d62880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 44.742006] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.747864] CR2: 0000000020000004 CR3: 000000009fbc4000 CR4: 00000000001406e0 [ 44.755112] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.762360] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.769648] Call Trace: [ 44.772234] integrity_inode_free+0x119/0x300 [ 44.776711] security_inode_free+0x14/0x80 [ 44.780928] __destroy_inode+0x1e8/0x4c0 [ 44.784966] destroy_inode+0x49/0x110 [ 44.788758] iput+0x457/0x8d0 [ 44.791845] ? ext4_nfs_commit_metadata+0x2d0/0x2d0 [ 44.796841] ext4_ioctl+0x145f/0x39f0 [ 44.800632] ? avc_ss_reset+0x100/0x100 [ 44.804585] ? ext4_ioctl_check_immutable+0x1c0/0x1c0 [ 44.809762] ? do_sys_open+0x1f9/0x3f0 [ 44.813627] ? do_syscall_64+0x1d5/0x640 [ 44.817664] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 44.823006] ? find_held_lock+0x2d/0x110 [ 44.827043] ? debug_check_no_obj_freed+0x28e/0x6e4 [ 44.832036] ? lock_acquire+0x170/0x3f0 [ 44.835988] ? lock_downgrade+0x6e0/0x6e0 [ 44.840138] ? ext4_ioctl_check_immutable+0x1c0/0x1c0 [ 44.845304] do_vfs_ioctl+0x75a/0xfe0 [ 44.849105] ? selinux_file_mprotect+0x5c0/0x5c0 [ 44.853840] ? ioctl_preallocate+0x1a0/0x1a0 [ 44.858252] ? rcu_read_lock_sched_held+0x10a/0x130 [ 44.863262] ? kmem_cache_free+0x23a/0x2b0 [ 44.867481] ? putname+0xcd/0x110 [ 44.870914] ? security_file_ioctl+0x76/0xb0 [ 44.875305] ? security_file_ioctl+0x83/0xb0 [ 44.879696] SyS_ioctl+0x7f/0xb0 [ 44.883113] ? do_vfs_ioctl+0xfe0/0xfe0 [ 44.887134] do_syscall_64+0x1d5/0x640 [ 44.891013] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 44.896181] RIP: 0033:0x440169 [ 44.899347] RSP: 002b:00007ffe84ebb628 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.907033] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440169 [ 44.914283] RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000003 [ 44.921532] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 44.928781] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004019f0 [ 44.936029] R13: 0000000000401a80 R14: 0000000000000000 R15: 0000000000000000 [ 44.943280] Code: 00 00 48 b8 00 00 00 00 00 fc ff df 41 57 49 89 f7 41 56 41 55 49 89 fd 48 83 c7 08 48 89 fa 41 54 48 c1 ea 03 55 53 48 83 ec 18 <80> 3c 02 00 0f 85 f5 10 00 00 49 8d 7d 10 4d 8b 75 08 48 b8 00 [ 44.962356] RIP: rb_erase+0x29/0x19b0 RSP: ffff88807deafa68 [ 44.968119] ---[ end trace 7e25009c79770104 ]--- [ 44.972897] Kernel panic - not syncing: Fatal exception [ 44.979335] Kernel Offset: disabled [ 44.982953] Rebooting in 86400 seconds..