BUG: stack guard page was hit in check_preemption_disabled (2)

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syzbot

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May 17, 2021, 7:39:20 AM5/17/21
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Hello,

syzbot found the following issue on:

HEAD commit: 88a5af94 Merge tag 'net-5.12-rc8' of git://git.kernel.org/..
git tree: net
console output: https://syzkaller.appspot.com/x/log.txt?x=16e421fed00000
kernel config: https://syzkaller.appspot.com/x/.config?x=339c2ecce8fdd1d0
dashboard link: https://syzkaller.appspot.com/bug?extid=b9419ddbdb57ce0e7f36
CC: [linux-...@vger.kernel.org mi...@redhat.com ros...@goodmis.org net...@vger.kernel.org]

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b9419d...@syzkaller.appspotmail.com

BUG: stack guard page was hit at ffffc90017047ff8 (stack is ffffc90017048000..ffffc9001704ffff)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 15571 Comm: syz-executor.0 Not tainted 5.12.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:check_preemption_disabled+0x2/0x150 lib/smp_processor_id.c:13
Code: 00 00 8b 1d 18 1e c2 04 31 ff 89 de 0f 1f 44 00 00 85 db 75 ae 0f 1f 44 00 00 41 bc 01 00 00 00 e8 73 c3 c2 fa eb 9f cc 41 56 <41> 55 49 89 f5 41 54 55 48 89 fd 53 0f 1f 44 00 00 65 44 8b 25 bd
RSP: 0018:ffffc90017048000 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff896b97e0 RDI: ffffffff89c21d00
RBP: ffffffff8bf742a0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8179e345 R11: 0000000000000000 R12: ffff888075ed8000
R13: 0000000000000001 R14: 00000000ffffffff R15: 0000000000000000
FS: 00007f7dea9c4700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90017047ff8 CR3: 0000000073cb8000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lockdep_recursion_inc kernel/locking/lockdep.c:432 [inline]
lock_is_held_type+0x63/0x140 kernel/locking/lockdep.c:5549
lock_is_held include/linux/lockdep.h:278 [inline]
rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
trace_irq_disable include/trace/events/preemptirq.h:36 [inline]
trace_hardirqs_off_finish kernel/trace/trace_preemptirq.c:67 [inline]
trace_hardirqs_off_finish+0x224/0x270 kernel/trace/trace_preemptirq.c:61
irqentry_enter+0x2b/0x50 kernel/entry/common.c:378
sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:unwind_next_frame+0x42d/0x1ce0 arch/x86/kernel/unwind_orc.c:464
Code: 03 0f 8e 0c 12 00 00 41 c7 06 00 00 00 00 31 c0 e9 6e fc ff ff 48 ba 00 00 00 00 00 fc ff df 4c 89 f9 48 c1 e9 03 0f b6 34 11 <49> 8d 4f 01 48 89 cf 48 c1 ef 03 0f b6 14 17 4c 89 ff 83 e7 07 40
RSP: 0018:ffffc90017048148 EFLAGS: 00000a07
RAX: 0000000000000015 RBX: 1ffff92002e09031 RCX: 1ffffffff1d02560
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8dff3f70
RBP: 0000000000000001 R08: ffffffff8e812b00 R09: ffffffff8e812b00
R10: fffff52002e0904f R11: 0000000000084087 R12: ffffc90017048268
R13: ffffc90017048255 R14: ffffc90017048220 R15: ffffffff8e812b04
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121
kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
kasan_set_track+0x1c/0x30 mm/kasan/common.c:46
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:357
____kasan_slab_free mm/kasan/common.c:360 [inline]
____kasan_slab_free mm/kasan/common.c:325 [inline]
__kasan_slab_free+0xf5/0x130 mm/kasan/common.c:367
kasan_slab_free include/linux/kasan.h:199 [inline]
slab_free_hook mm/slub.c:1562 [inline]
slab_free_freelist_hook+0x92/0x210 mm/slub.c:1600
slab_free mm/slub.c:3161 [inline]
kfree+0xe5/0x7f0 mm/slub.c:4213
skb_free_head net/core/skbuff.c:650 [inline]
pskb_expand_head+0xb03/0x1050 net/core/skbuff.c:1709
netlink_trim+0x1ea/0x240 net/netlink/af_netlink.c:1294
netlink_broadcast_filtered+0x65/0xdc0 net/netlink/af_netlink.c:1499
netlink_broadcast net/netlink/af_netlink.c:1544 [inline]
nlmsg_multicast include/net/netlink.h:1033 [inline]
nlmsg_notify+0x90/0x250 net/netlink/af_netlink.c:2545
rtnl_notify net/core/rtnetlink.c:739 [inline]
rtmsg_ifinfo_send net/core/rtnetlink.c:3818 [inline]
rtmsg_ifinfo_event net/core/rtnetlink.c:3833 [inline]
rtmsg_ifinfo_event net/core/rtnetlink.c:3821 [inline]
rtnetlink_event+0x193/0x1d0 net/core/rtnetlink.c:5604
notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2075
call_netdevice_notifiers_extack net/core/dev.c:2087 [inline]
call_netdevice_notifiers net/core/dev.c:2101 [inline]
netdev_features_change net/core/dev.c:1447 [inline]
netdev_sync_lower_features net/core/dev.c:9735 [inline]
__netdev_update_features+0x95d/0x17d0 net/core/dev.c:9882
netdev_change_features+0x61/0xb0 net/core/dev.c:9954
bond_compute_features+0x56c/0xaa0 drivers/net/bonding/bond_main.c:1330
bond_slave_netdev_event drivers/net/bonding/bond_main.c:3431 [inline]
bond_netdev_event+0x5d6/0xa80 drivers/net/bonding/bond_main.c:3471
notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2075
call_netdevice_notifiers_extack net/core/dev.c:2087 [inline]
call_netdevice_notifiers net/core/dev.c:2101 [inline]
netdev_features_change net/core/dev.c:1447 [inline]
netdev_sync_lower_features net/core/dev.c:9735 [inline]
__netdev_update_features+0x95d/0x17d0 net/core/dev.c:9882
netdev_change_features+0x61/0xb0 net/core/dev.c:9954
bond_compute_features+0x56c/0xaa0 drivers/net/bonding/bond_main.c:1330
bond_slave_netdev_event drivers/net/bonding/bond_main.c:3431 [inline]
bond_netdev_event+0x5d6/0xa80 drivers/net/bonding/bond_main.c:3471
notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2075
call_netdevice_notifiers_extack net/core/dev.c:2087 [inline]
call_netdevice_notifiers net/core/dev.c:2101 [inline]
netdev_features_change net/core/dev.c:1447 [inline]
netdev_sync_lower_features net/core/dev.c:9735 [inline]
__netdev_update_features+0x95d/0x17d0 net/core/dev.c:9882
netdev_change_features+0x61/0xb0 net/core/dev.c:9954
bond_compute_features+0x56c/0xaa0 drivers/net/bonding/bond_main.c:1330
bond_slave_netdev_event drivers/net/bonding/bond_main.c:3431 [inline]
bond_netdev_event+0x5d6/0xa80 drivers/net/bonding/bond_main.c:3471
notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2075
call_netdevice_notifiers_extack net/core/dev.c:2087 [inline]
call_netdevice_notifiers net/core/dev.c:2101 [inline]
netdev_features_change net/core/dev.c:1447 [inline]
netdev_sync_lower_features net/core/dev.c:9735 [inline]
__netdev_update_features+0x95d/0x17d0 net/core/dev.c:9882
netdev_change_features+0x61/0xb0 net/core/dev.c:9954
bond_compute_features+0x56c/0xaa0 drivers/net/bonding/bond_main.c:1330
bond_slave_netdev_event drivers/net/bonding/bond_main.c:3431 [inline]
bond_netdev_event+0x5d6/0xa80 drivers/net/bonding/bond_main.c:3471
notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2075
call_netdevice_notifiers_extack net/core/dev.c:2087 [inline]
call_netdevice_notifiers net/core/dev.c:2101 [inline]
netdev_features_change net/core/dev.c:1447 [inline]
netdev_sync_lower_features net/core/dev.c:9735 [inline]
__netdev_update_features+0x95d/0x17d0 net/core/dev.c:9882
netdev_change_features+0x61/0xb0 net/core/dev.c:9954
bond_compute_features+0x56c/0xaa0 drivers/net/bonding/bond_main.c:1330
bond_slave_netdev_event drivers/net/bonding/bond_main.c:3431 [inline]
bond_netdev_event+0x5d6/0xa80 drivers/net/bonding/bond_main.c:3471
notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2075
__netdev_update_featur
Lost 519 message(s)!
---[ end trace a42d092e59a95076 ]---
RIP: 0010:check_preemption_disabled+0x2/0x150 lib/smp_processor_id.c:13
Code: 00 00 8b 1d 18 1e c2 04 31 ff 89 de 0f 1f 44 00 00 85 db 75 ae 0f 1f 44 00 00 41 bc 01 00 00 00 e8 73 c3 c2 fa eb 9f cc 41 56 <41> 55 49 89 f5 41 54 55 48 89 fd 53 0f 1f 44 00 00 65 44 8b 25 bd
RSP: 0018:ffffc90017048000 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff896b97e0 RDI: ffffffff89c21d00
RBP: ffffffff8bf742a0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8179e345 R11: 0000000000000000 R12: ffff888075ed8000
R13: 0000000000000001 R14: 00000000ffffffff R15: 0000000000000000
FS: 00007f7dea9c4700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90017047ff8 CR3: 0000000073cb8000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


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syzbot

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Jul 16, 2021, 9:48:21 PM7/16/21
to syzkaller-upst...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
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