kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 3014 Comm: syz-executor.3 Not tainted 5.3.0-rc6-next-20190830 #75 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:xsk_poll+0x95/0x540 net/xdp/xsk.c:386 Code: 80 3c 02 00 0f 85 70 04 00 00 4c 8b a3 88 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 96 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 bf 03 00 00 RSP: 0018:ffff88805b4e7850 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: ffff88809bf99000 RCX: ffffc9000c588000 RDX: 0000000000000012 RSI: ffffffff859b6684 RDI: 0000000000000096 RBP: ffff88805b4e7880 R08: ffff8880986764c0 R09: ffffed10137f3249 R10: ffffed10137f3248 R11: ffff88809bf99247 R12: 0000000000000000 R13: 0000000000000304 R14: ffff88809fe53340 R15: ffff8880a2a49020 FS: 00007fac1a2ad700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30a21000 CR3: 00000000a0be7000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sock_poll+0x15e/0x480 net/socket.c:1256 vfs_poll include/linux/poll.h:90 [inline] do_pollfd fs/select.c:859 [inline] do_poll fs/select.c:907 [inline] do_sys_poll+0x7c2/0xde0 fs/select.c:1001 __do_sys_ppoll fs/select.c:1101 [inline] __se_sys_ppoll fs/select.c:1081 [inline] __x64_sys_ppoll+0x259/0x310 fs/select.c:1081 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4598e9 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fac1a2acc78 EFLAGS: 00000246 ORIG_RAX: 000000000000010f RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000004598e9 RDX: 0000000020000100 RSI: 0000000000000001 RDI: 0000000020000080 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fac1a2ad6d4 R13: 00000000004c679f R14: 00000000004db8f8 R15: 00000000ffffffff Modules linked in: ---[ end trace 449e025087497755 ]--- RIP: 0010:xsk_poll+0x95/0x540 net/xdp/xsk.c:386 Code: 80 3c 02 00 0f 85 70 04 00 00 4c 8b a3 88 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 96 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 bf 03 00 00 RSP: 0018:ffff88805b4e7850 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: ffff88809bf99000 RCX: ffffc9000c588000 RDX: 0000000000000012 RSI: ffffffff859b6684 RDI: 0000000000000096 RBP: ffff88805b4e7880 R08: ffff8880986764c0 R09: ffffed10137f3249 R10: ffffed10137f3248 R11: ffff88809bf99247 R12: 0000000000000000 R13: 0000000000000304 R14: ffff88809fe53340 R15: ffff8880a2a49020 FS: 00007fac1a2ad700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30a21000 CR3: 00000000a0be7000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400