Message-ID: <000000000000c722e7061f945377@google.com>
Date: Tue, 13 Aug 2024 10:56:21 -0700
From: syzbot <syzbot+e0bd4e4815a910c0daa8@...kaller.appspotmail.com>
To: r.vuijk@...net.nl
Cc: r.vuijk@...net.nl, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [wpan?] WARNING in cfg802154_switch_netns (2)

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> ________________________________
> From: syzbot <syzbot+e0bd4e4815a910c0daa8@...kaller.appspotmail.com>
> Sent: Tuesday, August 13, 2024 7:42:25 PM
> To: alex.aring@...il.com <alex.aring@...il.com>; davem@...emloft.net <davem@...emloft.net>; edumazet@...gle.com <edumazet@...gle.com>; kuba@...nel.org <kuba@...nel.org>; linux-kernel@...r.kernel.org <linux-kernel@...r.kernel.org>; linux-wpan@...r.kernel.org <linux-wpan@...r.kernel.org>; miquel.raynal@...tlin.com <miquel.raynal@...tlin.com>; netdev@...r.kernel.org <netdev@...r.kernel.org>; pabeni@...hat.com <pabeni@...hat.com>; stefan@...enfreihafen.org <stefan@...enfreihafen.org>; syzkaller-bugs@...glegroups.com <syzkaller-bugs@...glegroups.com>
> Subject: [syzbot] [wpan?] WARNING in cfg802154_switch_netns (2)
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    ee9a43b7cfe2 Merge tag 'net-6.11-rc3' of git://git.kernel...
> git tree:       net
> console output: https://syzkaller.appspot.com/x/log.txt?x=13da25d3980000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=e8a2eef9745ade09
> dashboard link: https://syzkaller.appspot.com/bug?extid=e0bd4e4815a910c0daa8
> compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
>
> Unfortunately, I don't have any reproducer for this issue yet.
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/9227adf96f75/disk-ee9a43b7.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/c65c46b78c57/vmlinux-ee9a43b7.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/467d374f18b9/bzImage-ee9a43b7.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+e0bd4e4815a910c0daa8@...kaller.appspotmail.com
>
> RBP: 00007f2c78995090 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
> R13: 0000000000000000 R14: 00007f2c77d05f80 R15: 00007fff6de33538
>  </TASK>
> ------------[ cut here ]------------
> WARNING: CPU: 1 PID: 8054 at net/ieee802154/core.c:258 cfg802154_switch_netns+0x37f/0x390 net/ieee802154/core.c:258
> Modules linked in:
> CPU: 1 UID: 0 PID: 8054 Comm: syz.0.839 Not tainted 6.11.0-rc2-syzkaller-00111-gee9a43b7cfe2 #0
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
> RIP: 0010:cfg802154_switch_netns+0x37f/0x390 net/ieee802154/core.c:258
> Code: a3 2b f6 90 0f 0b 90 43 80 3c 3e 00 75 8d eb 93 e8 c6 a3 2b f6 e9 8b fe ff ff e8 bc a3 2b f6 e9 81 fe ff ff e8 b2 a3 2b f6 90 <0f> 0b 90 e9 73 fe ff ff 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90
> RSP: 0018:ffffc9000337f408 EFLAGS: 00010293
> RAX: ffffffff8b67d3ce RBX: 00000000fffffff4 RCX: ffff8880215f3c00
> RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
> RBP: ffff88802324e198 R08: ffffffff8b67d23d R09: 1ffff11004649c3a
> R10: dffffc0000000000 R11: ffffed1004649c3b R12: 0000000000000000
> R13: 0000000000000000 R14: ffff88802324e078 R15: dffffc0000000000
> FS:  00007f2c789956c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00007ff818548d58 CR3: 000000007f648000 CR4: 00000000003506f0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> Call Trace:
>  <TASK>
>  nl802154_wpan_phy_netns+0x13d/0x210 net/ieee802154/nl802154.c:1292
>  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:2550
>  genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
>  netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
>  netlink_unicast+0x7f0/0x990 net/netlink/af_netlink.c:1357
>  netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
>  sock_sendmsg_nosec net/socket.c:730 [inline]
>  __sock_sendmsg+0x221/0x270 net/socket.c:745
>  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597
>  ___sys_sendmsg net/socket.c:2651 [inline]
>  __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680
>  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: 0033:0x7f2c77b779f9
> 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:00007f2c78995038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
> RAX: ffffffffffffffda RBX: 00007f2c77d05f80 RCX: 00007f2c77b779f9
> RDX: 0000000000000000 RSI: 0000000020000200 RDI: 000000000000000e
> RBP: 00007f2c78995090 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
> R13: 0000000000000000 R14: 00007f2c77d05f80 R15: 00007fff6de33538
>  </TASK>
>
>
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@...glegroups.com.
>
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>
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