general protection fault, probably for non-canonical address 0xdffffc000000005b: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000002d8-0x00000000000002df]
CPU: 0 PID: 20464 Comm: syz-executor.2 Not tainted 5.9.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__in_dev_get_rtnl include/linux/inetdevice.h:236 [inline]
RIP: 0010:inet_gifconf+0xdd/0x4a0 net/ipv4/devinet.c:1249
Code: 49 85 81 fa 45 84 e4 0f 84 50 03 00 00 e8 1b 89 81 fa 48 8d bb 20 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9f 03 00 00 89 ee bf 28 00 00 00 48 8b 9b 20 03
RSP: 0018:ffffc90008877be8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffffffffffffffb8 RCX: ffffc9000cba3000
RDX: 000000000000005b RSI: ffffffff86f4b575 RDI: 00000000000002d8
RBP: 0000000000000028 R08: 0000000000000000 R09: ffffc90008877c5f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff86f4b4b0 R14: 00000000004b2380 R15: 0000000000746058
FS: 00007f3cd7e53700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000746058 CR3: 0000000202597000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
dev_ifconf+0xec/0x2c0 net/core/dev_ioctl.c:81
sock_do_ioctl+0x202/0x2d0 net/socket.c:1061
sock_ioctl+0x3b8/0x730 net/socket.c:1198
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+0x44/0xa9
RIP: 0033:0x45dd99
Code: 0d b4 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 b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f3cd7e52c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000013180 RCX: 000000000045dd99
RDX: 0000000000400200 RSI: 0000000000008912 RDI: 0000000000000003
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 000000000169fb6f R14: 00007f3cd7e539c0 R15: 000000000118bf2c
Modules linked in:
---[ end trace 61366a2e12b8a1f7 ]---
RIP: 0010:__in_dev_get_rtnl include/linux/inetdevice.h:236 [inline]
RIP: 0010:inet_gifconf+0xdd/0x4a0 net/ipv4/devinet.c:1249
Code: 49 85 81 fa 45 84 e4 0f 84 50 03 00 00 e8 1b 89 81 fa 48 8d bb 20 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9f 03 00 00 89 ee bf 28 00 00 00 48 8b 9b 20 03
RSP: 0018:ffffc90008877be8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffffffffffffffb8 RCX: ffffc9000cba3000
RDX: 000000000000005b RSI: ffffffff86f4b575 RDI: 00000000000002d8
RBP: 0000000000000028 R08: 0000000000000000 R09: ffffc90008877c5f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff86f4b4b0 R14: 00000000004b2380 R15: 0000000000746058
FS: 00007f3cd7e53700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000746138 CR3: 0000000202597000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400