[ 36.578321] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.160' (ECDSA) to the list of known hosts. [ 42.099814] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 42.224590] audit: type=1400 audit(1576149672.715:36): avc: denied { map } for pid=7085 comm="syz-executor409" path="/root/syz-executor409924859" 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 [ 42.229441] kasan: CONFIG_KASAN_INLINE enabled [ 42.255880] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.263318] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 42.269553] Modules linked in: [ 42.272740] CPU: 0 PID: 7085 Comm: syz-executor409 Not tainted 4.14.158-syzkaller #0 [ 42.280694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.290076] task: ffff8880a4874340 task.stack: ffff888086870000 [ 42.296240] RIP: 0010:rb_erase+0x29/0x1c10 [ 42.300514] RSP: 0018:ffff8880868779d0 EFLAGS: 00010282 [ 42.305864] RAX: dffffc0000000000 RBX: ffff888099e0c5b0 RCX: 1ffff11010d0ef12 [ 42.313275] RDX: 0000000000000001 RSI: ffffffff89b5d2c0 RDI: 0000000000000008 [ 42.320543] RBP: ffff888086877a18 R08: ffffffff895fa02c R09: 0000000000001c40 [ 42.327854] R10: ffff8880868777d0 R11: ffff8880a4874340 R12: 0000000000000000 [ 42.335110] R13: ffff888097aee3f0 R14: 0000000000000000 R15: ffffffff86d97aa0 [ 42.342379] FS: 0000000002620880(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 [ 42.350683] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.356585] CR2: 000055f4c32141b0 CR3: 000000009316b000 CR4: 00000000001406f0 [ 42.364000] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.371316] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.378590] Call Trace: [ 42.381180] integrity_inode_free+0x126/0x320 [ 42.385691] security_inode_free+0x19/0x90 [ 42.390350] __destroy_inode+0x1ef/0x4e0 [ 42.394409] destroy_inode+0x50/0x120 [ 42.398190] evict+0x3e6/0x630 [ 42.401369] ? do_raw_spin_unlock+0x16b/0x260 [ 42.405842] iput+0x471/0x900 [ 42.408949] ? ext4_nfs_commit_metadata+0x2f0/0x2f0 [ 42.414395] ext4_ioctl+0x16b0/0x3920 [ 42.418174] ? avc_ss_reset+0x110/0x110 [ 42.422152] ? kmem_cache_free+0x83/0x2b0 [ 42.426416] ? ext4_ioctl_check_immutable+0x1c0/0x1c0 [ 42.431976] ? debug_check_no_obj_freed+0x2aa/0x7b7 [ 42.437502] ? __might_sleep+0x93/0xb0 [ 42.441398] ? ext4_ioctl_check_immutable+0x1c0/0x1c0 [ 42.446599] do_vfs_ioctl+0x7ae/0x1060 [ 42.450498] ? selinux_file_mprotect+0x5d0/0x5d0 [ 42.455366] ? kmem_cache_free+0x244/0x2b0 [ 42.459728] ? ioctl_preallocate+0x1c0/0x1c0 [ 42.464154] ? putname+0xe0/0x120 [ 42.467623] ? do_sys_open+0x221/0x430 [ 42.471520] ? security_file_ioctl+0x7d/0xb0 [ 42.475919] ? security_file_ioctl+0x89/0xb0 [ 42.480322] SyS_ioctl+0x8f/0xc0 [ 42.483686] ? do_vfs_ioctl+0x1060/0x1060 [ 42.487859] do_syscall_64+0x1e8/0x640 [ 42.491912] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.497064] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 42.502245] RIP: 0033:0x440159 [ 42.505433] RSP: 002b:00007ffc2cfae9b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.513335] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440159 [ 42.520605] RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000003 [ 42.528021] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 42.535343] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004019e0 [ 42.543035] R13: 0000000000401a70 R14: 0000000000000000 R15: 0000000000000000 [ 42.550312] 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 [ 42.569635] RIP: rb_erase+0x29/0x1c10 RSP: ffff8880868779d0 [ 42.575692] ---[ end trace d85f7cf2822ab521 ]--- [ 42.580661] Kernel panic - not syncing: Fatal exception [ 42.587662] Kernel Offset: disabled [ 42.591349] Rebooting in 86400 seconds..