BUG: unable to handle page fault for address: ffffed101a0847ff
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 21fff7067 P4D 21fff7067 PUD 21fff6067 PMD 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 25934 Comm: syz-executor.3 Tainted: G W 5.4.35-syzkaller-00725-g7f84f8f18418 #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:136 [inline]
RIP: 0010:netif_receive_generic_xdp+0x557/0x12d0 net/core/dev.c:4278
Code: cd 49 8d 5e 18 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 68 d6 46 fe 48 89 2b 48 8b 7c 24 08 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 74 0a e8 cd d5 46 fe 48 8b 7c 24 08 48 8b 37 83 e6
RSP: 0018:ffff8881c63f7418 EFLAGS: 00010a07
RAX: 1ffff1101a0847ff RBX: ffff8881c63f7578 RCX: 0000000000000100
RDX: ffffc90003759000 RSI: 000000000000010b RDI: ffff8880d0423fff
RBP: ffff8881d0414000 R08: ffffffff83293cd6 R09: ffffed103a082fdd
R10: ffffed103a082fdd R11: 0000000000000000 R12: ffff888193692dc0
R13: ffff8881c63f7570 R14: ffff8881c63f7560 R15: dffffc0000000000
FS: 00007f4e813bd700(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed101a0847ff CR3: 0000000196e95004 CR4: 00000000001606f0
DR0: 0001000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
do_xdp_generic+0xa6/0x1a0 net/core/dev.c:4376
tun_get_user+0x1c9e/0x3440 drivers/net/tun.c:1938
tun_chr_write_iter+0x121/0x1a0 drivers/net/tun.c:2029
call_write_iter include/linux/fs.h:1970 [inline]
new_sync_write fs/read_write.c:485 [inline]
__vfs_write+0x59d/0x720 fs/read_write.c:498
__kernel_write+0x12c/0x340 fs/read_write.c:517
write_pipe_buf+0x148/0x1d0 fs/splice.c:794
splice_from_pipe_feed fs/splice.c:500 [inline]
__splice_from_pipe+0x2d3/0x870 fs/splice.c:624
splice_from_pipe fs/splice.c:659 [inline]
default_file_splice_write+0x18b/0x250 fs/splice.c:806
do_splice_from fs/splice.c:848 [inline]
do_splice fs/splice.c:1156 [inline]
__do_sys_splice fs/splice.c:1433 [inline]
__se_sys_splice+0x7ee/0x1b70 fs/splice.c:1413
do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45c829
Code: 0d 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 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f4e813bcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 00000000005073c0 RCX: 000000000045c829
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000078bfa0 R08: 0000000000010005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000ba4 R14: 00000000004ce710 R15: 00007f4e813bd6d4
Modules linked in:
CR2: ffffed101a0847ff
---[ end trace 21349ba73980160f ]---
RIP: 0010:is_multicast_ether_addr_64bits include/linux/etherdevice.h:136 [inline]
RIP: 0010:netif_receive_generic_xdp+0x557/0x12d0 net/core/dev.c:4278
Code: cd 49 8d 5e 18 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 68 d6 46 fe 48 89 2b 48 8b 7c 24 08 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 74 0a e8 cd d5 46 fe 48 8b 7c 24 08 48 8b 37 83 e6
RSP: 0018:ffff8881c63f7418 EFLAGS: 00010a07
RAX: 1ffff1101a0847ff RBX: ffff8881c63f7578 RCX: 0000000000000100
RDX: ffffc90003759000 RSI: 000000000000010b RDI: ffff8880d0423fff
RBP: ffff8881d0414000 R08: ffffffff83293cd6 R09: ffffed103a082fdd
R10: ffffed103a082fdd R11: 0000000000000000 R12: ffff888193692dc0
R13: ffff8881c63f7570 R14: ffff8881c63f7560 R15: dffffc0000000000
FS: 00007f4e813bd700(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed101a0847ff CR3: 0000000196e95004 CR4: 00000000001606f0
DR0: 0001000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600