Warning: Permanently added '10.128.0.133' (ECDSA) to the list of known hosts. [ 46.849454] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 46.963784] audit: type=1400 audit(1570402568.214:36): avc: denied { map } for pid=6832 comm="syz-executor670" path="/root/syz-executor670833425" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 47.774948] kasan: CONFIG_KASAN_INLINE enabled [ 47.779756] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 47.787800] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 47.795104] Modules linked in: [ 47.798295] CPU: 0 PID: 7185 Comm: syz-executor670 Not tainted 4.14.147 #0 [ 47.805302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.814755] task: ffff8880a7c4c0c0 task.stack: ffff888084398000 [ 47.822778] RIP: 0010:rdma_resolve_route+0x11f/0x2bf0 [ 47.827978] RSP: 0018:ffff88808439fa20 EFLAGS: 00010202 [ 47.833416] RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 47.840685] RDX: 0000000000000029 RSI: 0000000000000001 RDI: 0000000000000148 [ 47.847958] RBP: ffff88808439fbc0 R08: ffff8880a7c4c0c0 R09: 0000000000000000 [ 47.855231] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809f540dc0 [ 47.862485] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88809f540f78 [ 47.869755] FS: 00007f03a8778700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 [ 47.877979] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.884803] CR2: 00007f03a8777e78 CR3: 000000008afd9000 CR4: 00000000001406f0 [ 47.892059] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.899323] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.906775] Call Trace: [ 47.909376] ? find_held_lock+0x35/0x130 [ 47.913698] ? rdma_join_multicast+0x2dc0/0x2dc0 [ 47.918548] ? ucma_get_ctx+0x20/0x130 executing program [ 47.922436] ? lock_downgrade+0x740/0x740 [ 47.926571] ? mutex_trylock+0x1c0/0x1c0 [ 47.930658] ? __mutex_unlock_slowpath+0x71/0x800 [ 47.935578] ? lock_downgrade+0x740/0x740 [ 47.940072] ? __radix_tree_lookup+0x1b3/0x2f0 [ 47.944645] ? wait_for_completion+0x420/0x420 [ 47.949231] ucma_resolve_route+0xab/0x100 [ 47.953483] ? ucma_resolve_route+0xab/0x100 [ 47.957890] ? ucma_connect+0x220/0x220 [ 47.961889] ? _copy_from_user+0x99/0x110 [ 47.966055] ucma_write+0x231/0x310 [ 47.969698] ? ucma_connect+0x220/0x220 [ 47.973651] ? ucma_open+0x290/0x290 [ 47.977622] __vfs_write+0x105/0x6b0 [ 47.981318] ? ucma_open+0x290/0x290 [ 47.985012] ? kernel_read+0x120/0x120 [ 47.990191] ? __inode_security_revalidate+0xd6/0x130 [ 47.999355] ? avc_policy_seqno+0x9/0x20 [ 48.003402] ? selinux_file_permission+0x85/0x480 [ 48.008246] ? security_file_permission+0x89/0x1f0 [ 48.013157] ? rw_verify_area+0xea/0x2b0 [ 48.017388] vfs_write+0x198/0x500 [ 48.021546] SyS_write+0xfd/0x230 [ 48.025476] ? SyS_read+0x230/0x230 [ 48.029359] ? do_syscall_64+0x53/0x640 [ 48.033806] ? SyS_read+0x230/0x230 [ 48.037622] do_syscall_64+0x1e8/0x640 [ 48.041532] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.046386] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 48.051867] RIP: 0033:0x446a49 [ 48.055560] RSP: 002b:00007f03a8777db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 48.063421] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 0000000000446a49 executing program executing program executing program executing program executing program [ 48.070775] RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000004 [ 48.078025] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 48.085624] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c [ 48.092980] R13: 00007ffea0dde3ef R14: 00007f03a87789c0 R15: 0000000000000000 [ 48.100277] Code: 00 48 c1 ea 03 80 3c 02 00 0f 85 ea 24 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 34 24 49 8d be 48 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d1 24 00 00 48 b8 00 00 00 00 00 fc ff df 41 [ 48.119645] RIP: rdma_resolve_route+0x11f/0x2bf0 RSP: ffff88808439fa20 [ 48.133350] ---[ end trace 6e4166af8b71ea1c ]--- [ 48.138233] Kernel panic - not syncing: Fatal exception [ 48.145044] Kernel Offset: disabled [ 48.149289] Rebooting in 86400 seconds..