BUG: unable to handle page fault for address: ffff887f93c07fff #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 7095 Comm: syz-executor058 Not tainted 5.7.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:is_multicast_ether_addr_64bits include/linux/etherdevice.h:135 [inline] RIP: 0010:netif_receive_generic_xdp+0x5ad/0x11b0 net/core/dev.c:4555 Code: e8 03 42 80 3c 20 00 74 08 48 89 df e8 4c 91 52 fb 48 89 2b 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ef e8 b3 90 52 fb <49> 8b 75 00 83 e6 01 31 ff 48 89 b4 24 d8 00 00 00 e8 6d b1 14 fb RSP: 0018:ffffc90001607798 EFLAGS: 00010246 RAX: 1ffff10ff2780fff RBX: ffffc900016078d0 RCX: 0000000000000100 RDX: ffffffffffff0101 RSI: 0000000000000000 RDI: ffff8880a93f19f6 RBP: ffff888093bf8000 R08: ffffffff865eb1d2 R09: ffffed101277f7dd R10: ffffed101277f7dd R11: 0000000000000000 R12: dffffc0000000000 R13: ffff887f93c07fff R14: 00000000ffff10fd R15: ffff8880a93f1940 FS: 00007f1dacf41700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff887f93c07fff CR3: 00000000a4d83000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_xdp_generic+0x34/0x100 net/core/dev.c:4652 tun_get_user+0x1c86/0x3670 drivers/net/tun.c:1901 tun_chr_write_iter+0x99/0x120 drivers/net/tun.c:1992 call_write_iter include/linux/fs.h:1907 [inline] new_sync_write fs/read_write.c:484 [inline] __vfs_write+0x54c/0x710 fs/read_write.c:497 __kernel_write+0x120/0x350 fs/read_write.c:516 write_pipe_buf+0xf9/0x150 fs/splice.c:809 splice_from_pipe_feed fs/splice.c:512 [inline] __splice_from_pipe+0x329/0x870 fs/splice.c:636 splice_from_pipe fs/splice.c:671 [inline] default_file_splice_write+0x112/0x1b0 fs/splice.c:821 do_splice_from fs/splice.c:863 [inline] do_splice+0xdcd/0x18c0 fs/splice.c:1170 __do_sys_splice fs/splice.c:1447 [inline] __se_sys_splice+0x172/0x230 fs/splice.c:1427 do_syscall_64+0xf3/0x1b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x446bb9 Code: e8 ec 0f 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 8b 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1dacf40d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 00000000006dcc78 RCX: 0000000000446bb9 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00000000006dcc70 R08: 0000000000010008 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc7c R13: 0000000000003172 R14: 656c6c616b7a7973 R15: 0000000000000064 Modules linked in: CR2: ffff887f93c07fff ---[ end trace 4c8fae086c48d4f1 ]--- RIP: 0010:is_multicast_ether_addr_64bits include/linux/etherdevice.h:135 [inline] RIP: 0010:netif_receive_generic_xdp+0x5ad/0x11b0 net/core/dev.c:4555 Code: e8 03 42 80 3c 20 00 74 08 48 89 df e8 4c 91 52 fb 48 89 2b 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ef e8 b3 90 52 fb <49> 8b 75 00 83 e6 01 31 ff 48 89 b4 24 d8 00 00 00 e8 6d b1 14 fb RSP: 0018:ffffc90001607798 EFLAGS: 00010246 RAX: 1ffff10ff2780fff RBX: ffffc900016078d0 RCX: 0000000000000100 RDX: ffffffffffff0101 RSI: 0000000000000000 RDI: ffff8880a93f19f6 RBP: ffff888093bf8000 R08: ffffffff865eb1d2 R09: ffffed101277f7dd R10: ffffed101277f7dd R11: 0000000000000000 R12: dffffc0000000000 R13: ffff887f93c07fff R14: 00000000ffff10fd R15: ffff8880a93f1940 FS: 00007f1dacf41700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff887f93c07fff CR3: 00000000a4d83000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400