syzbot


BUG: MAX_LOCKDEP_CHAINS too low!

Status: upstream: reported C repro on 2023/03/07 16:44
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+77595558bad304ba6a00@syzkaller.appspotmail.com
First crash: 359d, last: 10m
Bug presence (1)
Date Name Commit Repro Result
2023/05/07 upstream (ToT) fc4354c6e5c2 C [report] BUG: MAX_LOCKDEP_CHAINS too low!
Similar bugs (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 BUG: MAX_LOCKDEP_CHAINS too low! 401 1016d 1614d 0/1 auto-closed as invalid on 2021/09/16 14:16
linux-6.1 BUG: MAX_LOCKDEP_CHAINS too low! origin:upstream missing-backport C inconclusive 36007 44m 359d 0/3 upstream: reported C repro on 2023/03/07 18:13
linux-4.19 BUG: MAX_LOCKDEP_CHAINS too low! hfsplus ext4 f2fs vfs tmpfs reiserfs nilfs2 jfs btrfs xfs hfs ntfs iso9660 fat squashfs 72698 359d 1776d 0/1 upstream: reported on 2019/04/20 01:26
upstream BUG: MAX_LOCKDEP_CHAINS too low! (2) net C error 84838 842d 1318d 20/26 fixed on 2021/11/10 00:50
upstream BUG: MAX_LOCKDEP_CHAINS too low! (3) no-reminders xfs C error 111209 13d 837d 0/26 upstream: reported C repro on 2021/11/14 03:47
upstream BUG: MAX_LOCKDEP_CHAINS too low! kernel C done 17240 1322d 1980d 15/26 fixed on 2020/07/17 17:58

Sample crash report:
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 5.15.146-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: bond1372 bond_resend_igmp_join_requests_delayed
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 lookup_chain_cache_add kernel/locking/lockdep.c:3735 [inline]
 validate_chain kernel/locking/lockdep.c:3756 [inline]
 __lock_acquire+0x1b64/0x7638 kernel/locking/lockdep.c:5012
 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
 _raw_spin_lock_nested+0xb4/0x110 kernel/locking/spinlock.c:368
 bond_get_stats+0x394/0x638 drivers/net/bonding/bond_main.c:4133
 dev_get_stats+0x9c/0x1e0 net/core/dev.c:10700
 rtnl_fill_stats+0x50/0x7c0 net/core/rtnetlink.c:1205
 rtnl_fill_ifinfo+0x125c/0x1970 net/core/rtnetlink.c:1782
 rtmsg_ifinfo_build_skb+0xf8/0x1b4 net/core/rtnetlink.c:3867
 rtmsg_ifinfo_event net/core/rtnetlink.c:3899 [inline]
 rtnetlink_event+0x100/0x1ac net/core/rtnetlink.c:5681
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391
 call_netdevice_notifiers_info net/core/dev.c:2018 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2030 [inline]
 call_netdevice_notifiers+0x138/0x1b8 net/core/dev.c:2044
 bond_resend_igmp_join_requests_delayed+0x64/0x158 drivers/net/bonding/bond_main.c:847
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 worker_thread+0x910/0x1034 kernel/workqueue.c:2457
 kthread+0x37c/0x45c kernel/kthread.c:319
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870

Crashes (42213):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/01/14 15:11 linux-5.15.y 26c690eff0a5 551587c1 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2023/04/30 14:07 linux-5.15.y f48aeeaaa64c 62df2017 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2023/06/25 06:22 linux-5.15.y f67653019430 79782afc .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2023/06/13 14:23 linux-5.15.y 7349e40704a0 749afb64 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2023/06/06 03:14 linux-5.15.y d7af3e5ba454 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2023/05/13 04:30 linux-5.15.y b0ece631f84a ecca8a24 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2023/03/08 14:10 linux-5.15.y d9b4a0c83a2d d2b00170 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/01/18 08:54 linux-5.15.y ddcaf4999061 915053c7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 23:00 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 21:56 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 20:28 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 18:48 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 17:05 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 15:40 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 14:38 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 13:18 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 12:01 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 10:44 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 09:20 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 08:14 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 08:00 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 06:29 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 05:24 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 04:59 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 03:51 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 03:34 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 02:32 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 02:01 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 00:55 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/29 00:12 linux-5.15.y 458ce51d0356 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 23:08 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 21:23 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 20:12 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 18:30 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 18:13 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 17:10 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 16:36 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 15:32 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 14:57 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 13:50 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 13:25 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 12:14 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 12:13 linux-5.15.y 458ce51d0356 55d6f11d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 11:08 linux-5.15.y 458ce51d0356 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 09:52 linux-5.15.y 458ce51d0356 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 08:48 linux-5.15.y 458ce51d0356 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 06:52 linux-5.15.y 458ce51d0356 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 05:08 linux-5.15.y 458ce51d0356 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 03:54 linux-5.15.y 458ce51d0356 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 02:23 linux-5.15.y 458ce51d0356 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 00:58 linux-5.15.y 458ce51d0356 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/28 00:34 linux-5.15.y 458ce51d0356 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/27 23:29 linux-5.15.y 458ce51d0356 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/27 23:20 linux-5.15.y 458ce51d0356 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2024/02/27 22:16 linux-5.15.y 458ce51d0356 d367cbe5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
2023/03/07 16:44 linux-5.15.y d9b4a0c83a2d d7ea8bc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 BUG: MAX_LOCKDEP_CHAINS too low!
* Struck through repros no longer work on HEAD.