general protection fault, probably for non-canonical address 0xdffffc00f15a4e28: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x000000078ad27140-0x000000078ad27147]
CPU: 0 PID: 19069 Comm: syz-executor.2 Not tainted 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__ethtool_get_link_ksettings+0x177/0x340 net/ethtool/ioctl.c:446
Code: 9f bc b2 f9 b8 ff ff ff ff 49 39 c7 48 8b 2c 24 0f 84 af 00 00 00 e8 78 b8 b2 f9 4a 8d 1c fd 40 2d d6 8a 48 89 d8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 10 01 00 00 44 8b 33 48 8d 5d 04 48 89 d8
RSP: 0018:ffffc90001ccfb88 EFLAGS: 00010206
RAX: 00000000f15a4e28 RBX: 000000078ad27140 RCX: 0000000000040000
RDX: ffffc9000cd29000 RSI: 00000000000015f9 RDI: 00000000000015fa
RBP: ffff888025eddf08 R08: ffffffff87c66041 R09: ffffed1004bdbbee
R10: ffffed1004bdbbee R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff11003054842 R14: ffff8880182a4210 R15: 00000000ffff8880
FS:  00007fe380331700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000566344 CR3: 0000000088edb000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 linkinfo_prepare_data+0xdc/0x200 net/ethtool/linkinfo.c:37
 ethnl_default_notify+0x19c/0x6a0 net/ethtool/netlink.c:586
 ethtool_set_link_ksettings net/ethtool/ioctl.c:620 [inline]
 dev_ethtool+0x6560/0x7880 net/ethtool/ioctl.c:2842
 dev_ioctl+0x251/0xb90 net/core/dev_ioctl.c:440
 sock_do_ioctl+0x169/0x260 net/socket.c:1062
 sock_ioctl+0x416/0x5f0 net/socket.c:1179
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x466459
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe380331188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000004
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffcaf9ecc2f R14: 00007fe380331300 R15: 0000000000022000
Modules linked in:
---[ end trace b5dc7b81de6e24b5 ]---
RIP: 0010:__ethtool_get_link_ksettings+0x177/0x340 net/ethtool/ioctl.c:446
Code: 9f bc b2 f9 b8 ff ff ff ff 49 39 c7 48 8b 2c 24 0f 84 af 00 00 00 e8 78 b8 b2 f9 4a 8d 1c fd 40 2d d6 8a 48 89 d8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 10 01 00 00 44 8b 33 48 8d 5d 04 48 89 d8
RSP: 0018:ffffc90001ccfb88 EFLAGS: 00010206
RAX: 00000000f15a4e28 RBX: 000000078ad27140 RCX: 0000000000040000
RDX: ffffc9000cd29000 RSI: 00000000000015f9 RDI: 00000000000015fa
RBP: ffff888025eddf08 R08: ffffffff87c66041 R09: ffffed1004bdbbee
R10: ffffed1004bdbbee R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff11003054842 R14: ffff8880182a4210 R15: 00000000ffff8880
FS:  00007fe380331700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c2567280e8 CR3: 0000000088edb000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400