general protection fault, probably for non-canonical address 0xdffffc00f14cfc2c: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x000000078a67e160-0x000000078a67e167]
CPU: 0 PID: 10397 Comm: syz-executor900 Not tainted 5.12.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__ethtool_get_link_ksettings+0x1a3/0x3a0 net/ethtool/ioctl.c:446
Code: ed 3a fa 83 fd ff 0f 84 30 01 00 00 e8 76 e5 3a fa 48 8d 3c ed 60 9d 6b 8a 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 b9
RSP: 0018:ffffc900032af7a0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88802e85d608 RCX: 0000000000000000
RDX: 00000000f14cfc2c RSI: ffffffff87390bfa RDI: 000000078a67e160
RBP: 00000000ffff8880 R08: 00000000ffffffff R09: ffff88802e85d66f
R10: ffffffff87390bec R11: 0000000000000000 R12: 0000000000000000
R13: ffff88802e85d66c R14: ffff8880180e4210 R15: ffff8880180e4210
FS:  000000000189e300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004ba2f0 CR3: 0000000023c19000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 linkinfo_prepare_data+0xfd/0x280 net/ethtool/linkinfo.c:37
 ethnl_default_notify+0x1dc/0x630 net/ethtool/netlink.c:586
 ethtool_notify+0xbd/0x1f0 net/ethtool/netlink.c:656
 ethtool_set_link_ksettings+0x277/0x330 net/ethtool/ioctl.c:620
 dev_ethtool+0x2b35/0x45d0 net/ethtool/ioctl.c:2842
 dev_ioctl+0x463/0xb70 net/core/dev_ioctl.c:440
 sock_do_ioctl+0x148/0x2d0 net/socket.c:1062
 sock_ioctl+0x477/0x6a0 net/socket.c:1179
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x440da9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffccfeb4088 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440da9
RDX: 0000000020000380 RSI: 0000000000008946 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000f0b5ff R09: 0000000000f0b5ff
R10: 00007ffccfeb3b00 R11: 0000000000000246 R12: 0000000000012992
R13: 00007ffccfeb40b0 R14: 00007ffccfeb40a0 R15: 00007ffccfeb4094
Modules linked in:
---[ end trace 8b76b84d7d4adee7 ]---
RIP: 0010:__ethtool_get_link_ksettings+0x1a3/0x3a0 net/ethtool/ioctl.c:446
Code: ed 3a fa 83 fd ff 0f 84 30 01 00 00 e8 76 e5 3a fa 48 8d 3c ed 60 9d 6b 8a 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 b9
RSP: 0018:ffffc900032af7a0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88802e85d608 RCX: 0000000000000000
RDX: 00000000f14cfc2c RSI: ffffffff87390bfa RDI: 000000078a67e160
RBP: 00000000ffff8880 R08: 00000000ffffffff R09: ffff88802e85d66f
R10: ffffffff87390bec R11: 0000000000000000 R12: 0000000000000000
R13: ffff88802e85d66c R14: ffff8880180e4210 R15: ffff8880180e4210
FS:  000000000189e300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f19c003e038 CR3: 0000000023c19000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400