BUG: unable to handle page fault for address: ffffed1018841207
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 9994 Comm: syz-executor.2 Not tainted 5.6.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ethnl_bitmap32_not_zero net/ethtool/bitset.c:112 [inline]
RIP: 0010:ethnl_compact_sanity_checks net/ethtool/bitset.c:529 [inline]
RIP: 0010:ethnl_update_bitset32+0x1afe/0x2380 net/ethtool/bitset.c:572
Code: 24 30 44 89 fe 83 e6 1f 31 ff e8 6d a8 d4 fa 41 83 e7 1f 74 44 48 85 db 74 3f 48 8b 44 24 50 49 8d 1c 86 48 89 d8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 06 07 00 00 8b 1b 4c 89 f9 f6 d9 d3 e3 d3
RSP: 0018:ffffc900083ff6c0 EFLAGS: 00010a03
RAX: 1ffff11018841207 RBX: ffff8880c420903c RCX: 0000000000000002
RDX: dffffc0000000000 RSI: 0000000000000010 RDI: 0000000000000000
RBP: ffffc900083ff7b0 R08: ffffffff86a274c3 R09: ffffffff83bbd337
R10: ffff8880a2c1c1c0 R11: 0000000000000004 R12: dffffc0000000000
R13: ffffc900083ffab0 R14: ffff8880a4209040 R15: 0000000000000010
FS:  00007f8c8dc98700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed1018841207 CR3: 00000000a100f000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ethnl_update_bitset+0x3c/0x50 net/ethtool/bitset.c:734
 ethnl_update_linkmodes net/ethtool/linkmodes.c:303 [inline]
 ethnl_set_linkmodes+0x5d4/0xf80 net/ethtool/linkmodes.c:357
 genl_family_rcv_msg_doit net/netlink/genetlink.c:672 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:717 [inline]
 genl_rcv_msg+0xf15/0x13e0 net/netlink/genetlink.c:734
 netlink_rcv_skb+0x19e/0x3e0 net/netlink/af_netlink.c:2478
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:745
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x766/0x920 net/netlink/af_netlink.c:1329
 netlink_sendmsg+0xa2b/0xd40 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg net/socket.c:672 [inline]
 ____sys_sendmsg+0x4f7/0x7f0 net/socket.c:2343
 ___sys_sendmsg net/socket.c:2397 [inline]
 __sys_sendmsg+0x1ed/0x290 net/socket.c:2430
 __do_sys_sendmsg net/socket.c:2439 [inline]
 __se_sys_sendmsg net/socket.c:2437 [inline]
 __x64_sys_sendmsg+0x7f/0x90 net/socket.c:2437
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c449
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f8c8dc97c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f8c8dc986d4 RCX: 000000000045c449
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000904 R14: 00000000004d4fb0 R15: 000000000076bf2c
Modules linked in:
CR2: ffffed1018841207
---[ end trace abf1f2b926f7d811 ]---
RIP: 0010:ethnl_bitmap32_not_zero net/ethtool/bitset.c:112 [inline]
RIP: 0010:ethnl_compact_sanity_checks net/ethtool/bitset.c:529 [inline]
RIP: 0010:ethnl_update_bitset32+0x1afe/0x2380 net/ethtool/bitset.c:572
Code: 24 30 44 89 fe 83 e6 1f 31 ff e8 6d a8 d4 fa 41 83 e7 1f 74 44 48 85 db 74 3f 48 8b 44 24 50 49 8d 1c 86 48 89 d8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 06 07 00 00 8b 1b 4c 89 f9 f6 d9 d3 e3 d3
RSP: 0018:ffffc900083ff6c0 EFLAGS: 00010a03
RAX: 1ffff11018841207 RBX: ffff8880c420903c RCX: 0000000000000002
RDX: dffffc0000000000 RSI: 0000000000000010 RDI: 0000000000000000
RBP: ffffc900083ff7b0 R08: ffffffff86a274c3 R09: ffffffff83bbd337
R10: ffff8880a2c1c1c0 R11: 0000000000000004 R12: dffffc0000000000
R13: ffffc900083ffab0 R14: ffff8880a4209040 R15: 0000000000000010
FS:  00007f8c8dc98700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed1018841207 CR3: 00000000a100f000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400