syzbot


BUG: MAX_LOCKDEP_ENTRIES too low! (3)

Status: upstream: reported C repro on 2022/11/16 22:12
Subsystems: net
Labels: no-reminders
[Documentation on labels]
Reported-by: syzbot+b04c9ffbbd2f303d00d9@syzkaller.appspotmail.com
First crash: 559d, last: 8d06h
Cause bisection: introduced by (bisect log) [merge commit]:
commit d99676af540c2dc829999928fb81c58c80a1dce4
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun Feb 21 22:44:44 2021 +0000

  Merge tag 'drm-next-2021-02-19' of git://anongit.freedesktop.org/drm/drm

Crash: WARNING in kvm_wait (log)
Repro: C syz .config
  
Discussions (3)
Title Replies (including bot) Last reply
[syzbot] Monthly net report (Jul 2023) 0 (1) 2023/08/01 12:53
[PATCH] lib/stackdepot: stackdepot: don't use __GFP_KSWAPD_RECLAIM from __stack_depot_save() if atomic context 16 (16) 2023/06/21 15:37
[syzbot] BUG: MAX_LOCKDEP_ENTRIES too low! (3) 0 (2) 2022/11/22 07:57
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 BUG: MAX_LOCKDEP_ENTRIES too low! origin:upstream C 2 9d06h 273d 0/3 upstream: reported C repro on 2023/08/21 09:06
upstream BUG: MAX_LOCKDEP_ENTRIES too low! C done 179076 1108d 1799d 20/26 fixed on 2021/11/10 00:50
linux-5.15 BUG: MAX_LOCKDEP_ENTRIES too low! origin:upstream missing-backport C done 8 36d 370d 0/3 upstream: reported C repro on 2023/05/17 04:24
upstream BUG: MAX_LOCKDEP_ENTRIES too low! (2) kernel 9 733d 888d 0/26 auto-closed as invalid on 2022/08/16 22:49
Last patch testing requests (11)
Created Duration User Patch Repo Result
2024/05/11 05:42 18m retest repro net-next report log
2024/04/27 04:18 19m retest repro upstream report log
2024/04/27 04:18 19m retest repro net report log
2024/03/26 23:52 18m retest repro upstream report log
2024/03/26 23:52 18m retest repro upstream report log
2024/01/24 01:07 18m retest repro net report log
2024/01/24 01:07 18m retest repro net-next report log
2023/11/14 00:37 24m retest repro net-next OK log
2023/11/13 06:22 22m retest repro linux-next OK log
2023/11/13 06:22 22m retest repro upstream OK log
2022/11/22 10:14 15m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git 9ab000d9ac54 report log

Sample crash report:
netlink: 4 bytes leftover after parsing attributes in process `syz-executor222'.
8021q: adding VLAN 0 to HW filter on device batadv969
BUG: MAX_LOCKDEP_ENTRIES too low!
turning off the locking correctness validator.
CPU: 1 PID: 6108 Comm: syz-executor222 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
 alloc_list_entry kernel/locking/lockdep.c:1397 [inline]
 add_lock_to_list+0x25d/0x380 kernel/locking/lockdep.c:1418
 check_prev_add kernel/locking/lockdep.c:3204 [inline]
 check_prevs_add kernel/locking/lockdep.c:3253 [inline]
 validate_chain kernel/locking/lockdep.c:3869 [inline]
 __lock_acquire+0x2c61/0x3b30 kernel/locking/lockdep.c:5137
 lock_acquire kernel/locking/lockdep.c:5754 [inline]
 lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 console_lock_spinning_enable kernel/printk/printk.c:1867 [inline]
 console_emit_next_record kernel/printk/printk.c:2901 [inline]
 console_flush_all+0x4d4/0xd70 kernel/printk/printk.c:2973
 console_unlock+0xae/0x290 kernel/printk/printk.c:3042
 vprintk_emit kernel/printk/printk.c:2342 [inline]
 vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2297
 vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
 _printk+0xc8/0x100 kernel/printk/printk.c:2367
 vlan_device_event+0x13f9/0x2120 net/8021q/vlan.c:383
 notifier_call_chain+0xbc/0x3e0 kernel/notifier.c:93
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1950
 call_netdevice_notifiers_extack net/core/dev.c:1988 [inline]
 call_netdevice_notifiers net/core/dev.c:2002 [inline]
 dev_open net/core/dev.c:1471 [inline]
 dev_open+0x144/0x160 net/core/dev.c:1459
 team_port_add drivers/net/team/team.c:1214 [inline]
 team_add_slave+0xadc/0x2110 drivers/net/team/team.c:1974
 do_set_master+0x1bf/0x230 net/core/rtnetlink.c:2685
 rtnl_newlink_create net/core/rtnetlink.c:3511 [inline]
 __rtnl_newlink+0x150b/0x1960 net/core/rtnetlink.c:3714
 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3727
 rtnetlink_rcv_msg+0x3ca/0xe60 net/core/rtnetlink.c:6595
 netlink_rcv_skb+0x16e/0x440 net/netlink/af_netlink.c:2559
 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]
 netlink_unicast+0x545/0x820 net/netlink/af_netlink.c:1361
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0xab8/0xc90 net/socket.c:2584
 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2638
 __sys_sendmsg+0x117/0x1f0 net/socket.c:2667
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fda0d3fec19
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd0304b028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fda0d3fec19
RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
team969: Port device batadv969 added

Crashes (469):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/09 08:46 upstream fe46a7dd189e 53df08b6 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root BUG: MAX_LOCKDEP_ENTRIES too low!
2024/03/12 23:34 upstream 855684c7d938 c35c26ec .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root BUG: MAX_LOCKDEP_ENTRIES too low!
2024/05/13 01:59 upstream ba16c1cf11c9 9026e142 .config console log report syz C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream BUG: MAX_LOCKDEP_ENTRIES too low!
2024/03/04 14:24 upstream 90d35da658da 0f110c12 .config console log report syz C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/25 09:02 upstream f2e367d6ad3b 8d446f15 .config console log report syz C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream BUG: MAX_LOCKDEP_ENTRIES too low!
2023/11/27 01:21 net a524eabcd72d 5b429f39 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/11/27 06:43 net-next dba1b8a7ab68 5b429f39 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/07/12 12:41 upstream 3f01e9fed845 2f19aa4f .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root BUG: MAX_LOCKDEP_ENTRIES too low!
2022/11/22 08:51 upstream eb7081409f94 1c576c23 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root BUG: MAX_LOCKDEP_ENTRIES too low!
2022/11/22 07:56 net-old 9ab000d9ac54 1c576c23 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2022/11/23 04:10 net-next-old 339e79dfb087 9da37ae8 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/01/03 04:03 linux-next c76083fac3ba ab32d508 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root BUG: MAX_LOCKDEP_ENTRIES too low!
2022/12/23 20:50 linux-next e45fb347b630 9da18ae8 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root BUG: MAX_LOCKDEP_ENTRIES too low!
2024/03/06 13:10 upstream 29cd507cbec2 f39a7eed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/03/04 03:42 upstream 58c806d867bf 25905f5d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/26 23:58 upstream d206a76d7d27 edd6a5e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/01/08 06:41 upstream 0dd3ee311255 d0304e9c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root BUG: MAX_LOCKDEP_ENTRIES too low!
2024/01/03 04:01 upstream 610a9b8f49fb fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root BUG: MAX_LOCKDEP_ENTRIES too low!
2023/12/30 16:07 upstream f016f7547aee fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root BUG: MAX_LOCKDEP_ENTRIES too low!
2023/12/23 01:21 upstream 8afe6f0e0e25 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root BUG: MAX_LOCKDEP_ENTRIES too low!
2023/11/22 12:23 upstream c2d5304e6c64 cb976f63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root BUG: MAX_LOCKDEP_ENTRIES too low!
2023/10/30 05:44 upstream 2af9b20dbb39 3c418d72 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root BUG: MAX_LOCKDEP_ENTRIES too low!
2023/10/16 11:52 upstream 58720809f527 6388bc36 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/09/27 04:12 upstream 50768a425b46 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root BUG: MAX_LOCKDEP_ENTRIES too low!
2023/09/20 10:32 upstream 2cf0f7156238 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/26 22:41 upstream d206a76d7d27 edd6a5e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/29 19:22 upstream 1c59d383390f 7ba13a15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/29 03:33 upstream 727dbda16b83 7ba13a15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/28 12:07 upstream 2dde18cd1d8f 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/28 02:03 upstream 85eb043618bb 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/27 22:04 upstream 85eb043618bb 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/25 20:12 upstream 4f9e7fabf864 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/25 09:32 upstream f8d6ff449094 49be837e .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/22 17:29 upstream f7757129e3de b81ca3f6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/01 07:53 upstream 5d0c230f1de8 2a0d0f29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: MAX_LOCKDEP_ENTRIES too low!
2022/11/14 15:55 upstream 094226ad94f4 943f4cb8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/27 05:53 upstream 28f20a19294d 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/27 07:58 net 10bfd453da64 05e69c83 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/19 02:17 net ee710bbcad48 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/12/05 22:02 net 3c91c909f13f f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/11/26 17:43 net a524eabcd72d 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/09/06 06:25 net d3287e4038ca 8bc9053e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/27 11:54 net 5c905279a1b7 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/25 14:58 net 786c96e92fb9 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2022/11/10 14:53 net-old 27c064ae14d1 b2488a87 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2022/11/08 09:55 net-old c23fb2c82267 881db35d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/03/10 01:38 net-next d7e14e534493 6ee49f2e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/03/02 09:18 net-next e96082570933 25905f5d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/26 07:41 net-next d662c5b3ce6d 8d446f15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/24 02:55 net-next a818bd12538c 8d446f15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/22 15:44 net-next 6d5c36565c16 345111b5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/18 08:54 net-next a6e0cb150c51 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/17 10:58 net-next 71b605d32017 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/12 13:38 net-next 4ec1d5fd384e 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/12 00:00 net-next 970cb1ceda17 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/12/26 14:16 net-next e9301af385e7 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/12/16 02:53 net-next e91db1614aba 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/12/15 16:55 net-next e91db1614aba 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/12/14 23:10 net-next 00b1b2296b58 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/12/11 09:32 net-next 5a08d0065a91 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/10/09 16:31 net-next 19537e125cc7 3c53c7d9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/09/07 06:58 net-next bd6c11bc43c4 72324844 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/09/04 14:54 net-next bd6c11bc43c4 8bc9053e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/30 23:49 net-next bd6c11bc43c4 84803932 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/30 20:22 net-next bd6c11bc43c4 84803932 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2023/08/28 23:21 net-next 4b151e75aa5e 7ba13a15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/10 10:14 linux-next 445a555e0623 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root BUG: MAX_LOCKDEP_ENTRIES too low!
2024/02/04 22:56 linux-next 076d56d74f17 a67b2c42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root BUG: MAX_LOCKDEP_ENTRIES too low!
* Struck through repros no longer work on HEAD.