syzbot


general protection fault in netdev_pick_tx

Status: auto-closed as invalid on 2020/09/08 07:34
Reported-by: syzbot+e2d96d86847c58e7dafd@syzkaller.appspotmail.com
First crash: 1668d, last: 1668d

Sample crash report:
EXT4-fs warning (device sda1): ext4_block_to_path:105: block 2147483647 > max in inode 17029
EXT4-fs warning (device sda1): ext4_group_extend:1806: can't shrink FS - resize aborted
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 7684 Comm: kworker/u4:5 Not tainted 4.19.122-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bond1 bond_alb_monitor
RIP: 0010:netdev_pick_tx+0x140/0x2f0 net/core/dev.c:3731
Code: c1 ea 03 80 3c 02 00 0f 85 b4 01 00 00 4c 8b a3 e8 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 30 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 97 01 00 00 4d 8b 64 24 30 4d 85 e4 0f 84 18 01
RSP: 0018:ffff88805d40f908 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffff8880001e0d80 RCX: ffffffff859f4162
RDX: 000eeeee00ee0014 RSI: ffffffff859f4171 RDI: 00777770077000a7
RBP: ffff8880a4552e00 R08: ffff88809e1da000 R09: ffffed1015ce4733
R10: ffffed1015ce4732 R11: ffff8880ae723993 R12: 0077777007700077
R13: ffff8880001e118c R14: 0000000000000000 R15: ffff8880a4552e58
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c4e0bbe2af CR3: 000000009614a000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __dev_queue_xmit+0x549/0x3040 net/core/dev.c:3809
 alb_send_lp_vid+0x365/0x4d0 drivers/net/bonding/bond_alb.c:949
 alb_send_learning_packets+0xa3/0x270 drivers/net/bonding/bond_alb.c:1008
 bond_alb_monitor+0x74d/0x1300 drivers/net/bonding/bond_alb.c:1555
 process_one_work+0x91f/0x1640 kernel/workqueue.c:2155
 worker_thread+0x96/0xe20 kernel/workqueue.c:2298
 kthread+0x34a/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Modules linked in:
---[ end trace 4b521c7491ddc376 ]---
RIP: 0010:netdev_pick_tx+0x140/0x2f0 net/core/dev.c:3731
Code: c1 ea 03 80 3c 02 00 0f 85 b4 01 00 00 4c 8b a3 e8 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 30 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 97 01 00 00 4d 8b 64 24 30 4d 85 e4 0f 84 18 01
RSP: 0018:ffff88805d40f908 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffff8880001e0d80 RCX: ffffffff859f4162
RDX: 000eeeee00ee0014 RSI: ffffffff859f4171 RDI: 00777770077000a7
RBP: ffff8880a4552e00 R08: ffff88809e1da000 R09: ffffed1015ce4733
R10: ffffed1015ce4732 R11: ffff8880ae723993 R12: 0077777007700077
R13: ffff8880001e118c R14: 0000000000000000 R15: ffff8880a4552e58
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c4e0bbe2af CR3: 000000009614a000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/05/11 07:33 linux-4.19.y 033c4ea49a4b f8f57555 .config console log report ci2-linux-4-19
* Struck through repros no longer work on HEAD.