BUG: stack guard page was hit in mark_held_locks

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: 9e50b94b Add linux-next specific files for 20200703
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=1051ee8f100000
kernel config: https://syzkaller.appspot.com/x/.config?x=f99cc0faa1476ed6
dashboard link: https://syzkaller.appspot.com/bug?extid=c66218bec77a89793c66
compiler: gcc (GCC) 10.1.0-syz 20200507

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+c66218...@syzkaller.appspotmail.com

BUG: stack guard page was hit at 00000000d2019c30 (stack is 0000000006f487e0..0000000048f31ef3)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 7063 Comm: syz-executor.3 Not tainted 5.8.0-rc3-next-20200703-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:mark_held_locks+0xa/0xe0 kernel/locking/lockdep.c:3593
Code: 8a e8 6a dd 59 00 e9 db f1 ff ff 48 c7 c7 a0 51 92 8c e8 59 dd 59 00 e9 02 f2 ff ff 0f 1f 40 00 48 b8 00 00 00 00 00 fc ff df <41> 56 41 55 41 54 49 89 fc 48 81 c7 d0 08 00 00 48 89 fa 55 89 f5
RSP: 0018:ffffc90004cc0000 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffff88805638c240 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88805638c240
RBP: ffff88805638c240 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff81340ba2 R14: 0000000000000200 R15: ffff88808fe4e780
FS: 00000000025e3940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90004cbfff8 CR3: 0000000056360000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__trace_hardirqs_on_caller kernel/locking/lockdep.c:3627 [inline]
lockdep_hardirqs_on_prepare+0x1bc/0x590 kernel/locking/lockdep.c:3686
trace_hardirqs_on+0x5f/0x220 kernel/trace/trace_preemptirq.c:49
do_user_addr_fault+0x792/0xd00 arch/x86/mm/fault.c:1196
handle_page_fault arch/x86/mm/fault.c:1365 [inline]
exc_page_fault+0xab/0x170 arch/x86/mm/fault.c:1418
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:565
RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90004cc01a8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88805638c240 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff839880cb RDI: 0000000000000001
RBP: ffffffff810078f7 R08: ffffffff83af6ae0 R09: ffffc90004cc016f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000000 R15: ffff88808fe4e780
search_module_extables+0xce/0x100 kernel/module.c:4422
search_exception_tables+0x42/0x50 kernel/extable.c:59
do_user_addr_fault+0xa59/0xd00 arch/x86/mm/fault.c:1237
handle_page_fault arch/x86/mm/fault.c:1365 [inline]
exc_page_fault+0xab/0x170 arch/x86/mm/fault.c:1418
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:565
RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90004cc0338 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88805638c240 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff839880cb RDI: 0000000000000001
RBP: ffffffff810078f7 R08: ffffffff83af6ae0 R09: ffffc90004cc02ff
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000000 R15: ffff88808fe4e780
search_module_extables+0xce/0x100 kernel/module.c:4422
search_exception_tables+0x42/0x50 kernel/extable.c:59
do_user_addr_fault+0xa59/0xd00 arch/x86/mm/fault.c:1237
handle_page_fault arch/x86/mm/fault.c:1365 [inline]
exc_page_fault+0xab/0x170 arch/x86/mm/fault.c:1418
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:565
RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90004cc04c8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88805638c240 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff839880cb RDI: 0000000000000001
RBP: ffffffff810078f7 R08: ffffffff83af6ae0 R09: ffffc90004cc048f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000000 R15: ffff88808fe4e780
search_module_extables+0xce/0x100 kernel/module.c:4422
search_exception_tables+0x42/0x50 kernel/extable.c:59
do_user_addr_fault+0xa59/0xd00 arch/x86/mm/fault.c:1237
handle_page_fault arch/x86/mm/fault.c:1365 [inline]
exc_page_fault+0xab/0x170 arch/x86/mm/fault.c:1418
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:565
RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90004cc0658 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88805638c240 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff839880cb RDI: 0000000000000001
RBP: ffffffff810078f7 R08: ffffffff83af6ae0 R09: ffffc90004cc061f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000000 R15: ffff88808fe4e780
search_module_extables+0xce/0x100 kernel/module.c:4422
search_exception_tables+0x42/0x50 kernel/extable.c:59
do_user_addr_fault+0xa59/0xd00 arch/x86/mm/fault.c:1237
handle_page_fault arch/x86/mm/fault.c:1365 [inline]
exc_page_fault+0xab/0x170 arch/x86/mm/fault.c:1418
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:565
RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90004cc07e8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88805638c240 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff839880cb RDI: 0000000000000001
RBP: ffffffff810078f7 R08: ffffffff83af6ae0 R09: ffffc90004cc07af
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000000 R15: ffff88808fe4e780
search_module_extables+0xce/0x100 kernel/module.c:4422
search_exception_tables+0x42/0x50 kernel/extable.c:59
do_user_addr_fault+0xa59/0xd00 arch/x86/mm/fault.c:1237
handle_page_fault arch/x86/mm/fault.c:1365 [inline]
exc_page_fault+0xab/0x170 arch/x86/mm/fault.c:1418
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:565
RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90004cc0978 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88805638c240 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff839880cb RDI: 0000000000000001
RBP: ffffffff810078f7 R08: ffffffff83af6ae0 R09: ffffc90004cc093f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000000 R15: ffff88808fe4e780
search_module_extables+0xce/0x100 kernel/module.c:4422
search_exception_tables+0x42/0x50 kernel/extable.c:59
do_user_addr_fault+0xa59/0xd00 arch/x86/mm/fault.c:1237
handle_page_fault arch/x86/mm/fault.c:1365 [inline]
exc_page_fault+0xab/0x170 arch/x86/mm/fault.c:1418
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:565
RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc90004cc0b08 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88805638c240 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff839880cb RDI: 0000000000000001
RBP: ffffffff810078f7 R08: ffffffff83af6ae0 R09: ffffc90004cc0acf
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000000 R15: ffff88808fe4e780
search_module_extables+0xce/0x100 kernel/module.c:4422
search_exception_tables+0x42/0x50 kernel/extable.c:59
do_user_addr_fault+0xa59/0xd00 arch/x86/mm/fault.c:1237
handle_page_fault arch/x86/mm/fault.c:1365 [inline]
exc_page_fault+0xab/0x170 arch/x86/mm/fault.c:1418
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:565
RIP: 0010:preempt_schedule_thunk+0x0/0x18 arch/x86/entry/thunk_64.S:40
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <
Lost 1355 message(s)!
---[ end trace 445352104cff919d ]---
RIP: 0010:mark_held_locks+0xa/0xe0 kernel/locking/lockdep.c:3593
Code: 8a e8 6a dd 59 00 e9 db f1 ff ff 48 c7 c7 a0 51 92 8c e8 59 dd 59 00 e9 02 f2 ff ff 0f 1f 40 00 48 b8 00 00 00 00 00 fc ff df <41> 56 41 55 41 54 49 89 fc 48 81 c7 d0 08 00 00 48 89 fa 55 89 f5
RSP: 0018:ffffc90004cc0000 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffff88805638c240 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88805638c240
RBP: ffff88805638c240 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff81340ba2 R14: 0000000000000200 R15: ffff88808fe4e780
FS: 00000000025e3940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90004cbfff8 CR3: 0000000056360000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


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