syzbot


BUG: spinlock bad magic

Status: closed as invalid on 2017/10/18 08:55
First crash: 2423d, last: 2405d
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-49 BUG: spinlock bad magic 1 2364d 2364d 0/3 closed as invalid on 2017/11/05 07:52
android-44 BUG: spinlock bad magic C 16 2274d 1840d 0/2 public: reported C repro on 2019/04/13 00:00
upstream BUG: spinlock bad magic (2) rds 7 2320d 2321d 0/26 closed as dup on 2018/01/30 22:28
android-49 BUG: spinlock bad magic (2) C 52 2271d 1841d 0/3 public: reported C repro on 2019/04/12 00:00

Sample crash report:
BUG: spinlock bad magic on CPU#0, syzkaller373285/5164
 lock: 0xffff8801c7d37468, .magic: ffff8801, .owner: syzkaller373285/5164, .owner_cpu: 0
CPU: 0 PID: 5164 Comm: syzkaller373285 Not tainted 4.13.0+ #72
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:16 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:52
 spin_dump+0x14d/0x280 kernel/locking/spinlock_debug.c:67
 spin_bug kernel/locking/spinlock_debug.c:75 [inline]
 debug_spin_unlock kernel/locking/spinlock_debug.c:97 [inline]
 do_raw_spin_unlock+0x2bd/0x330 kernel/locking/spinlock_debug.c:134
 __raw_spin_unlock include/linux/spinlock_api_smp.h:151 [inline]
 _raw_spin_unlock+0x22/0x30 kernel/locking/spinlock.c:183
 spin_unlock include/linux/spinlock.h:356 [inline]
 __fanout_link+0xaf/0xf0 net/packet/af_packet.c:1508
 fanout_add+0x88b/0x1190 net/packet/af_packet.c:1760
 packet_setsockopt+0xfdc/0x1e80 net/packet/af_packet.c:3795
 SYSC_setsockopt net/socket.c:1852 [inline]
 SyS_setsockopt+0x189/0x360 net/socket.c:1831
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x44a8c9
RSP: 002b:00007f56cc251dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000044a8c9
RDX: 0000000000000012 RSI: 0000000000000107 RDI: 0000000000000040
RBP: 0000000000000082 R08: 0000000000000004 R09: 00007f56cc252700
R10: 00000000201ef000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007fff483ccd4f R14: 00007f56cc2529c0 R15: 0000000000000000

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2017/09/07 19:19 upstream 3b9f8ed25dbe 0ed1da4a .config console log report syz C ci-upstream-kasan-gce
2017/09/20 10:39 upstream 820bf5c419e4 4e341009 .config console log report syz C ci-upstream-kasan-gce-386
2017/09/25 05:10 mmots 720bbe532b7c c26ea367 .config console log report syz C ci-upstream-mmots-kasan-gce
2017/09/21 02:31 mmots 720bbe532b7c c26ea367 .config console log report syz C ci-upstream-mmots-kasan-gce
2017/09/20 06:45 mmots 720bbe532b7c c26ea367 .config console log report syz C ci-upstream-mmots-kasan-gce
2017/09/07 19:27 linux-next c6be5a0e3ceb 0ed1da4a .config console log report syz C skylake-linux-next-kasan-qemu
* Struck through repros no longer work on HEAD.