audit: type=1400 audit(1519888159.495:12): avc: denied { create } for pid=5659 comm="syz-executor5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_connector_socket permissive=1 netlink: 24 bytes leftover after parsing attributes in process `syz-executor1'. kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access[ 44.648693] netlink: 24 bytes leftover after parsing attributes in process `syz-executor1'. general protection fault: 0000 [#1] PREEMPT SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 5687 Comm: syz-executor3 Not tainted 4.4.119-g024f962 #26 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801cdb0c800 task.stack: ffff8801d49b0000 RIP: 0010:[] [] sg_remove_scat.isra.17+0x17b/0x2d0 drivers/scsi/sg.c:1949 RSP: 0018:ffff8801d49b7b20 EFLAGS: 00010202 RAX: 1ffff1003a77544d RBX: ffff8801d3baa258 RCX: 0000000000000001 RDX: 0000000000000008 RSI: ffffc900017c3000 RDI: ffff8800b77365f4 RBP: ffff8801d49b7b70 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 1ffff1003a936f3e R12: 0000000000000001 R13: 0000000000000008 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f0126c1c700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffee346cf60 CR3: 00000001d3116000 CR4: 0000000000160670 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801d3baa270 ffffed003a77544b ffffed003a77544e ffff8801d3baa268 ffff8800b77365d8 ffff8801d3baa240 0000000000000000 0000000000000000 0000000000000000 ffff8801d3baa338 ffff8801d49b7bb0 ffffffff825b8955 Call Trace: [] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1835 [] sg_read+0xa1b/0x1490 drivers/scsi/sg.c:537 [] __vfs_read+0x103/0x440 fs/read_write.c:432 [] vfs_read+0x123/0x3a0 fs/read_write.c:454 [] SYSC_read fs/read_write.c:569 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:562 [] entry_SYSCALL_64_fastpath+0x1c/0x98 Code: 45 b8 eb 3e e8 e7 87 da fe 48 8b 45 c8 48 c1 e8 03 42 80 3c 38 00 0f 85 3a 01 00 00 4c 8b 73 10 4b 8d 14 2e 48 89 d1 48 c1 e9 03 <42> 80 3c 39 00 0f 85 0b 01 00 00 48 8b 12 49 83 c5 08 48 85 d2 RIP [] sg_remove_scat.isra.17+0x17b/0x2d0 drivers/scsi/sg.c:1949 RSP ---[ end trace 6fed3ed9fdfae5b7 ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..