audit: type=1400 audit(1521831694.945:6): avc: denied { map } for pid=4084 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 audit: type=1400 audit(1521831701.351:7): avc: denied { map } for pid=4098 comm="syzkaller148426" path="/root/syzkaller148426363" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 4098 Comm: syzkaller148426 Not tainted 4.16.0-rc6+ #363 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rdma_cap_ib_cm include/rdma/ib_verbs.h:2661 [inline] RIP: 0010:rdma_init_qp_attr+0x8b/0x720 drivers/infiniband/core/cma.c:1025 RSP: 0018:ffff8801cc797840 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8801bb4976c0 RCX: ffffffff841bbf8f RDX: 0000000000000029 RSI: ffff8801cc7979c8 RDI: 0000000000000148 RBP: ffff8801cc797880 R08: ffffed00398f2f4e R09: ffff8801cc7979cc R10: 0000000000000000 R11: ffffed00398f2f4d R12: ffff8801cc7979c8 R13: ffff8801cc797908 R14: 0000000000000000 R15: ffff8801cc7978c8 FS: 00000000007b0880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c67ffbb0f0 CR3: 00000001cc38a006 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ucma_init_qp_attr+0x251/0x440 drivers/infiniband/core/ucma.c:1172 ucma_write+0x2d6/0x3d0 drivers/infiniband/core/ucma.c:1649 __vfs_write+0xef/0x970 fs/read_write.c:480 vfs_write+0x189/0x510 fs/read_write.c:544 SYSC_write fs/read_write.c:589 [inline] SyS_write+0xef/0x220 fs/read_write.c:581 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x43fdc9 RSP: 002b:00007ffe0daacb28 EFLAGS: 00000217 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fdc9 RDX: 0000000000000057 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004016f0 R13: 0000000000401780 R14: 0000000000000000 R15: 0000000000000000 Code: 00 00 00 fc ff df 80 3c 02 00 0f 85 8c 06 00 00 4c 8b 33 48 b8 00 00 00 00 00 fc ff df 49 8d be 48 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5d 06 00 00 44 0f b6 7d d4 48 b8 00 00 00 00 RIP: rdma_cap_ib_cm include/rdma/ib_verbs.h:2661 [inline] RSP: ffff8801cc797840 RIP: rdma_init_qp_attr+0x8b/0x720 drivers/infiniband/core/cma.c:1025 RSP: ffff8801cc797840 ---[ end trace f0e61529df46d8ef ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..