syzbot


WARNING in __dev_change_net_namespace

Status: auto-closed as invalid on 2022/03/07 06:42
Reported-by: syzbot+5434727aa485c3203fed@syzkaller.appspotmail.com
First crash: 384d, last: 384d

Sample crash report:
RAX: ffffffffffffffda RBX: 00007f02bf014f60 RCX: 00007f02bef01ae9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00007f02bc4771d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffcc2738d7f R14: 00007f02bc477300 R15: 0000000000022000
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4974 at net/core/dev.c:11254 __dev_change_net_namespace+0x1079/0x1330 net/core/dev.c:11254
Modules linked in:
CPU: 0 PID: 4974 Comm: syz-executor.2 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__dev_change_net_namespace+0x1079/0x1330 net/core/dev.c:11254
Code: c7 c7 80 9b 8c 8a c6 05 ba 0e 3b 06 01 e8 36 73 d5 01 0f 0b e9 69 f0 ff ff e8 e3 95 57 fa 0f 0b e9 60 fb ff ff e8 d7 95 57 fa <0f> 0b e9 2a fb ff ff 41 bd ea ff ff ff e9 62 f2 ff ff e8 f0 38 9e
RSP: 0018:ffffc900217aed70 EFLAGS: 00010246
RAX: 0000000000040000 RBX: 00000000fffffff4 RCX: ffffc9000b291000
RDX: 0000000000040000 RSI: ffffffff87202d59 RDI: 0000000000000003
RBP: ffff88815cbea000 R08: 0000000000000000 R09: ffff88815cbea64b
R10: ffffffff87202882 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffffff8d0e3dc0 R14: ffff88815cbeac00 R15: ffffffff8d0e3f0c
FS:  00007f02bc477700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32027000 CR3: 0000000162d58000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 do_setlink+0x275/0x3970 net/core/rtnetlink.c:2624
 __rtnl_newlink+0xde6/0x1750 net/core/rtnetlink.c:3391
 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3506
 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:724
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f02bef01ae9
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:00007f02bc477188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f02bf014f60 RCX: 00007f02bef01ae9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00007f02bc4771d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffcc2738d7f R14: 00007f02bc477300 R15: 0000000000022000
 </TASK>

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2021/11/07 06:41 upstream 512b7931ad05 4c1be0be .config log report info WARNING in __dev_change_net_namespace
* Struck through repros no longer work on HEAD.