Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot <syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com>]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
kernel BUG in ieee802154_del_iface

------------[ cut here ]------------
kernel BUG at net/core/dev.c:11375!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 7336 Comm: syz.4.73 Not tainted 6.12.0-rc7-syzkaller-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:unregister_netdevice_many_notify+0x1d84/0x1da0 net/core/dev.c:11375
Code: 01 90 48 c7 c7 80 fe 0c 8d 48 c7 c6 60 fe 0c 8d ba 8b 17 00 00 e8 8c 47 c8 f7 90 0f 0b 90 90 e9 67 e8 ff ff e8 9d 51 07 f8 90 <0f> 0b e8 95 51 07 f8 90 0f 0b e8 dd 5e 31 02 66 2e 0f 1f 84 00 00
RSP: 0018:ffffc90004607160 EFLAGS: 00010293
RAX: ffffffff898d8813 RBX: 0000000000000002 RCX: ffff88802c1e5a00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: ffffc90004607350 R08: ffffffff898d6ca6 R09: 1ffffffff1f98274
R10: dffffc0000000000 R11: fffffbfff1f98275 R12: dead000000000100
R13: ffff888028cf06c1 R14: ffffc900046073a0 R15: 1ffff1100519e031
FS:  00007fc796c396c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005587e87f1950 CR3: 0000000033264000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 unregister_netdevice_many net/core/dev.c:11469 [inline]
 unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11343
 rdev_del_virtual_intf_deprecated net/ieee802154/rdev-ops.h:24 [inline]
 ieee802154_del_iface+0x2c0/0x5c0 net/ieee802154/nl-phy.c:323
 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:744
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607
 ___sys_sendmsg net/socket.c:2661 [inline]
 __sys_sendmsg+0x292/0x380 net/socket.c:2690
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc795d7e719
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc796c39038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc795f35f80 RCX: 00007fc795d7e719
RDX: 0000000004000000 RSI: 0000000020000b00 RDI: 0000000000000005
RBP: 00007fc795df139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc795f35f80 R15: 00007ffe0c919b58
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:unregister_netdevice_many_notify+0x1d84/0x1da0 net/core/dev.c:11375
Code: 01 90 48 c7 c7 80 fe 0c 8d 48 c7 c6 60 fe 0c 8d ba 8b 17 00 00 e8 8c 47 c8 f7 90 0f 0b 90 90 e9 67 e8 ff ff e8 9d 51 07 f8 90 <0f> 0b e8 95 51 07 f8 90 0f 0b e8 dd 5e 31 02 66 2e 0f 1f 84 00 00
RSP: 0018:ffffc90004607160 EFLAGS: 00010293
RAX: ffffffff898d8813 RBX: 0000000000000002 RCX: ffff88802c1e5a00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: ffffc90004607350 R08: ffffffff898d6ca6 R09: 1ffffffff1f98274
R10: dffffc0000000000 R11: fffffbfff1f98275 R12: dead000000000100
R13: ffff888028cf06c1 R14: ffffc900046073a0 R15: 1ffff1100519e031
FS:  00007fc796c396c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f392374d440 CR3: 0000000033264000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


Tested on:

commit:         2d5404ca Linux 6.12-rc7
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=14e7fe30580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1503500c6f615d24
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=15f001a7980000