BUG: MAX_LOCKDEP_ENTRIES too low!
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syzbot
Jun 17, 2019, 12:29:10 PM6/17/19
to ja...@suse.com, linux-...@vger.kernel.org, syzkall...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: f4788d37 Add linux-next specific files for 20190614
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=17f2e3f1a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=daee2e11d008b604
dashboard link: https://syzkaller.appspot.com/bug?extid=cd0ec5211ac07c18c049
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+cd0ec5...@syzkaller.appspotmail.com
BUG: MAX_LOCKDEP_ENTRIES too low!
turning off the locking correctness validator.
CPU: 0 PID: 25825 Comm: syz-executor.4 Not tainted 5.2.0-rc4-next-20190614
#15
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x172/0x1f0 lib/dump_stack.c:113
alloc_list_entry kernel/locking/lockdep.c:1219 [inline]
add_lock_to_list.isra.0.cold+0x11/0x18 kernel/locking/lockdep.c:1240
check_prev_add kernel/locking/lockdep.c:2449 [inline]
check_prevs_add kernel/locking/lockdep.c:2502 [inline]
validate_chain kernel/locking/lockdep.c:2892 [inline]
__lock_acquire+0x2cb2/0x4af0 kernel/locking/lockdep.c:3885
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4418
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151
vprintk_emit+0x115/0x700 kernel/printk/printk.c:1966
vprintk_default+0x28/0x30 kernel/printk/printk.c:2013
vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:386
printk+0xba/0xed kernel/printk/printk.c:2046
_udf_err+0xdc/0x110 fs/udf/super.c:2286
udf_read_tagged+0x49c/0x530 fs/udf/misc.c:212
udf_check_anchor_block+0x1ef/0x680 fs/udf/super.c:1785
udf_scan_anchors+0x1cf/0x680 fs/udf/super.c:1825
udf_find_anchor fs/udf/super.c:1882 [inline]
udf_load_vrs+0x67f/0xc80 fs/udf/super.c:1947
udf_fill_super+0x7d8/0x16d1 fs/udf/super.c:2140
mount_bdev+0x304/0x3c0 fs/super.c:1346
udf_mount+0x35/0x40 fs/udf/super.c:131
legacy_get_tree+0x108/0x220 fs/fs_context.c:661
vfs_get_tree+0x8e/0x390 fs/super.c:1476
do_new_mount fs/namespace.c:2790 [inline]
do_mount+0x138c/0x1c00 fs/namespace.c:3110
ksys_mount+0xdb/0x150 fs/namespace.c:3319
__do_sys_mount fs/namespace.c:3333 [inline]
__se_sys_mount fs/namespace.c:3330 [inline]
__x64_sys_mount+0xbe/0x150 fs/namespace.c:3330
do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4592c9
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fb3d01d1c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000004592c9
RDX: 0000000020000140 RSI: 0000000020000180 RDI: 00000000200000c0
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb3d01d26d4
R13: 00000000004c570b R14: 00000000004d9aa0 R15: 00000000ffffffff
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following crash on:
HEAD commit: f4788d37 Add linux-next specific files for 20190614
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=17f2e3f1a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=daee2e11d008b604
dashboard link: https://syzkaller.appspot.com/bug?extid=cd0ec5211ac07c18c049
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+cd0ec5...@syzkaller.appspotmail.com
BUG: MAX_LOCKDEP_ENTRIES too low!
turning off the locking correctness validator.
CPU: 0 PID: 25825 Comm: syz-executor.4 Not tainted 5.2.0-rc4-next-20190614
#15
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x172/0x1f0 lib/dump_stack.c:113
alloc_list_entry kernel/locking/lockdep.c:1219 [inline]
add_lock_to_list.isra.0.cold+0x11/0x18 kernel/locking/lockdep.c:1240
check_prev_add kernel/locking/lockdep.c:2449 [inline]
check_prevs_add kernel/locking/lockdep.c:2502 [inline]
validate_chain kernel/locking/lockdep.c:2892 [inline]
__lock_acquire+0x2cb2/0x4af0 kernel/locking/lockdep.c:3885
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4418
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151
vprintk_emit+0x115/0x700 kernel/printk/printk.c:1966
vprintk_default+0x28/0x30 kernel/printk/printk.c:2013
vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:386
printk+0xba/0xed kernel/printk/printk.c:2046
_udf_err+0xdc/0x110 fs/udf/super.c:2286
udf_read_tagged+0x49c/0x530 fs/udf/misc.c:212
udf_check_anchor_block+0x1ef/0x680 fs/udf/super.c:1785
udf_scan_anchors+0x1cf/0x680 fs/udf/super.c:1825
udf_find_anchor fs/udf/super.c:1882 [inline]
udf_load_vrs+0x67f/0xc80 fs/udf/super.c:1947
udf_fill_super+0x7d8/0x16d1 fs/udf/super.c:2140
mount_bdev+0x304/0x3c0 fs/super.c:1346
udf_mount+0x35/0x40 fs/udf/super.c:131
legacy_get_tree+0x108/0x220 fs/fs_context.c:661
vfs_get_tree+0x8e/0x390 fs/super.c:1476
do_new_mount fs/namespace.c:2790 [inline]
do_mount+0x138c/0x1c00 fs/namespace.c:3110
ksys_mount+0xdb/0x150 fs/namespace.c:3319
__do_sys_mount fs/namespace.c:3333 [inline]
__se_sys_mount fs/namespace.c:3330 [inline]
__x64_sys_mount+0xbe/0x150 fs/namespace.c:3330
do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4592c9
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fb3d01d1c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000004592c9
RDX: 0000000020000140 RSI: 0000000020000180 RDI: 00000000200000c0
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb3d01d26d4
R13: 00000000004c570b R14: 00000000004d9aa0 R15: 00000000ffffffff
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot
Nov 7, 2019, 10:54:09 PM11/7/19
to da...@davemloft.net, d...@openvswitch.org, ja...@suse.com, linux-...@vger.kernel.org, net...@vger.kernel.org, psh...@ovn.org, syzkall...@googlegroups.com
syzbot has found a reproducer for the following crash on:
HEAD commit: 99a8efbb NFC: st21nfca: fix double free
git tree: net
console output: https://syzkaller.appspot.com/x/log.txt?x=15ed70d8e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=cbbed3e8d4eb64bf
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1036c762e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+cd0ec5...@syzkaller.appspotmail.com
device 5580n entered promiscuous mode
add_lock_to_list kernel/locking/lockdep.c:1313 [inline]
check_prev_add kernel/locking/lockdep.c:2528 [inline]
check_prevs_add kernel/locking/lockdep.c:2581 [inline]
validate_chain kernel/locking/lockdep.c:2971 [inline]
__lock_acquire+0x2a15/0x4a00 kernel/locking/lockdep.c:3955
lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4487
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
_raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:175
spin_lock_bh include/linux/spinlock.h:343 [inline]
netif_addr_lock_bh include/linux/netdevice.h:4055 [inline]
dev_set_rx_mode+0x20/0x40 net/core/dev.c:7808
dev_set_promiscuity+0xbf/0xe0 net/core/dev.c:7716
internal_dev_create+0x387/0x550 net/openvswitch/vport-internal_dev.c:196
ovs_vport_add+0x150/0x500 net/openvswitch/vport.c:199
new_vport+0x1b/0x1d0 net/openvswitch/datapath.c:194
ovs_dp_cmd_new+0x5e5/0xe30 net/openvswitch/datapath.c:1644
genl_family_rcv_msg+0x74b/0xf90 net/netlink/genetlink.c:629
genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:654
netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
genl_rcv+0x29/0x40 net/netlink/genetlink.c:665
netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328
netlink_sendmsg+0x8a5/0xd60 net/netlink/af_netlink.c:1917
sock_sendmsg_nosec net/socket.c:637 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:657
___sys_sendmsg+0x803/0x920 net/socket.c:2311
__sys_sendmsg+0x105/0x1d0 net/socket.c:2356
__do_sys_sendmsg net/socket.c:2365 [inline]
__se_sys_sendmsg net/socket.c:2363 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2363
do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x441779
Code: e8 9c ad 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7
RSP: 002b:00007ffea7e5fcc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441779
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 0000000000058f66 R08: 00007ffe00000025 R09: 00007ffe00000025
R10: 0000000000000004 R11: 0000000000000246 R12: 00000000006cdbc0
R13: 0000000000000013 R14: 0000000000000000 R15: 0000000000000000
HEAD commit: 99a8efbb NFC: st21nfca: fix double free
git tree: net
console output: https://syzkaller.appspot.com/x/log.txt?x=15ed70d8e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=cbbed3e8d4eb64bf
dashboard link: https://syzkaller.appspot.com/bug?extid=cd0ec5211ac07c18c049
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13cf5594e00000
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1036c762e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+cd0ec5...@syzkaller.appspotmail.com
BUG: MAX_LOCKDEP_ENTRIES too low!
turning off the locking correctness validator.
CPU: 0 PID: 14197 Comm: syz-executor527 Not tainted 5.4.0-rc5+ #0
turning off the locking correctness validator.
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x172/0x1f0 lib/dump_stack.c:113
alloc_list_entry.cold+0x11/0x18 kernel/locking/lockdep.c:1292
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x172/0x1f0 lib/dump_stack.c:113
add_lock_to_list kernel/locking/lockdep.c:1313 [inline]
check_prev_add kernel/locking/lockdep.c:2528 [inline]
check_prevs_add kernel/locking/lockdep.c:2581 [inline]
validate_chain kernel/locking/lockdep.c:2971 [inline]
__lock_acquire+0x2a15/0x4a00 kernel/locking/lockdep.c:3955
lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4487
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
_raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:175
spin_lock_bh include/linux/spinlock.h:343 [inline]
netif_addr_lock_bh include/linux/netdevice.h:4055 [inline]
dev_set_rx_mode+0x20/0x40 net/core/dev.c:7808
dev_set_promiscuity+0xbf/0xe0 net/core/dev.c:7716
internal_dev_create+0x387/0x550 net/openvswitch/vport-internal_dev.c:196
ovs_vport_add+0x150/0x500 net/openvswitch/vport.c:199
new_vport+0x1b/0x1d0 net/openvswitch/datapath.c:194
ovs_dp_cmd_new+0x5e5/0xe30 net/openvswitch/datapath.c:1644
genl_family_rcv_msg+0x74b/0xf90 net/netlink/genetlink.c:629
genl_rcv_msg+0xca/0x170 net/netlink/genetlink.c:654
netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
genl_rcv+0x29/0x40 net/netlink/genetlink.c:665
netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328
netlink_sendmsg+0x8a5/0xd60 net/netlink/af_netlink.c:1917
sock_sendmsg_nosec net/socket.c:637 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:657
___sys_sendmsg+0x803/0x920 net/socket.c:2311
__sys_sendmsg+0x105/0x1d0 net/socket.c:2356
__do_sys_sendmsg net/socket.c:2365 [inline]
__se_sys_sendmsg net/socket.c:2363 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2363
do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x441779
Code: e8 9c ad 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 1b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffea7e5fcc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441779
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 0000000000058f66 R08: 00007ffe00000025 R09: 00007ffe00000025
R10: 0000000000000004 R11: 0000000000000246 R12: 00000000006cdbc0
R13: 0000000000000013 R14: 0000000000000000 R15: 0000000000000000
Jan Kara
Nov 8, 2019, 4:37:58 AM11/8/19
to syzbot, da...@davemloft.net, d...@openvswitch.org, ja...@suse.com, linux-...@vger.kernel.org, net...@vger.kernel.org, psh...@ovn.org, syzkall...@googlegroups.com, Peter Zijlstra, Ingo Molnar
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