syzbot


general protection fault in batadv_iv_ogm_schedule (2)

Status: auto-closed as invalid on 2021/01/08 06:33
Subsystems: batman
[Documentation on labels]
Reported-by: syzbot+870c4745cc7a955e17e2@syzkaller.appspotmail.com
First crash: 1534d, last: 1534d
Discussions (1)
Title Replies (including bot) Last reply
general protection fault in batadv_iv_ogm_schedule (2) 0 (1) 2020/09/10 09:43
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream general protection fault in batadv_iv_ogm_schedule batman 2 1735d 1748d 15/28 fixed on 2020/04/15 17:19
linux-4.14 general protection fault in batadv_iv_ogm_schedule 4 1708d 1765d 0/1 auto-closed as invalid on 2020/07/17 09:16

Sample crash report:
general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077]
CPU: 1 PID: 6396 Comm: kworker/u4:8 Not tainted 5.9.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:843 [inline]
RIP: 0010:batadv_iv_ogm_schedule+0x925/0xf40 net/batman-adv/bat_iv_ogm.c:869
Code: 00 48 c1 e8 03 48 89 44 24 28 48 c7 c5 48 e7 3a 8c 0f 1f 40 00 49 8d 5f 70 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 7d e0 a9 f9 48 8b 1b 48 b8 00 00 00
RSP: 0018:ffffc90019cd7b88 EFLAGS: 00010202
RAX: 000000000000000e RBX: 0000000000000070 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000000
RBP: ffffffff8c3ae748 R08: ffffffff880ae416 R09: ffffed10152b4c06
R10: ffffed10152b4c06 R11: 0000000000000000 R12: 0000000000000007
R13: ffff8880a95a6028 R14: ffff8880a7f17870 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000931c4000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 batadv_iv_send_outstanding_bat_ogm_packet+0x68c/0x7c0 net/batman-adv/bat_iv_ogm.c:1723
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2269
 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2415
 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
---[ end trace 3bb6c6ec8627e29b ]---
RIP: 0010:batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:843 [inline]
RIP: 0010:batadv_iv_ogm_schedule+0x925/0xf40 net/batman-adv/bat_iv_ogm.c:869
Code: 00 48 c1 e8 03 48 89 44 24 28 48 c7 c5 48 e7 3a 8c 0f 1f 40 00 49 8d 5f 70 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 7d e0 a9 f9 48 8b 1b 48 b8 00 00 00
RSP: 0018:ffffc90019cd7b88 EFLAGS: 00010202
RAX: 000000000000000e RBX: 0000000000000070 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000000
RBP: ffffffff8c3ae748 R08: ffffffff880ae416 R09: ffffed10152b4c06
R10: ffffed10152b4c06 R11: 0000000000000000 R12: 0000000000000007
R13: ffff8880a95a6028 R14: ffff8880a7f17870 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000931c4000 CR4: 00000000001526e0
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
2020/09/10 06:32 upstream 34d4ddd359db 409809d8 .config console log report ci-upstream-kasan-gce-smack-root
* Struck through repros no longer work on HEAD.