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: 7363 Comm: syz-executor.2 Not tainted 5.3.0-rc3+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:xsk_poll+0x81/0x4d0 net/xdp/xsk.c:386 Code: 80 3c 02 00 0f 85 01 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 4c 03 00 00 RSP: 0018:ffff88807a7bf8b0 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: ffff88807a7c0c80 RCX: ffffffff8532e81d RDX: 0000000000000012 RSI: 0000000000000004 RDI: 0000000000000096 RBP: ffff88807a7bf8e0 R08: ffffed100f4f81d9 R09: ffffed100f4f81d9 R10: ffffed100f4f81d8 R11: ffff88807a7c0ec7 R12: 0000000000000000 R13: 0000000000000304 R14: ffffffff86b2d330 R15: ffff888092fdb5a0 FS: 00007fdf36181700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001496780 CR3: 00000000885af000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sock_poll+0x137/0x430 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+0x4a7/0xc20 fs/select.c:1001 __do_sys_ppoll fs/select.c:1101 [inline] __se_sys_ppoll fs/select.c:1081 [inline] __x64_sys_ppoll+0x1e1/0x2a0 fs/select.c:1081 do_syscall_64+0xd0/0x540 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 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:00007fdf36180c78 EFLAGS: 00000246 ORIG_RAX: 000000000000010f RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000459829 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000020000280 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdf361816d4 R13: 00000000004c6706 R14: 00000000004db7d8 R15: 00000000ffffffff Modules linked in: ---[ end trace 059c305e0fe37497 ]--- RIP: 0010:xsk_poll+0x81/0x4d0 net/xdp/xsk.c:386 Code: 80 3c 02 00 0f 85 01 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 4c 03 00 00 RSP: 0018:ffff88807a7bf8b0 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: ffff88807a7c0c80 RCX: ffffffff8532e81d RDX: 0000000000000012 RSI: 0000000000000004 RDI: 0000000000000096 RBP: ffff88807a7bf8e0 R08: ffffed100f4f81d9 R09: ffffed100f4f81d9 R10: ffffed100f4f81d8 R11: ffff88807a7c0ec7 R12: 0000000000000000 R13: 0000000000000304 R14: ffffffff86b2d330 R15: ffff888092fdb5a0 FS: 00007fdf36181700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd89caae78 CR3: 00000000885af000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400