general protection fault in debug_check_no_obj

general protection fault in debug_check_no_obj_freed (3)
Status: upstream: reported on 2020/09/21 08:08
Reported-by: syzbot+06df86d7d68707715eec@syzkaller.appspotmail.com
First crash: 25d, last: 6d01h

similar bugs (3):
Kernel	Title	Count	Last	Reported	Patched	Status
upstream	general protection fault in debug_check_no_obj_freed (2)	1	701d	700d	0/17	auto-closed as invalid on 2019/04/26 09:49
linux-4.19	general protection fault in debug_check_no_obj_freed	1	20d	20d	0/1	upstream: reported on 2020/09/08 22:10
upstream	general protection fault in debug_check_no_obj_freed	2	916d	914d	0/17	closed as invalid on 2018/07/17 14:23

Sample crash report:

general protection fault, probably for non-canonical address 0xdffffc000901f7ce: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x00000000480fbe70-0x00000000480fbe77]
CPU: 1 PID: 3173 Comm: systemd-udevd Not tainted 5.9.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:956 [inline]
RIP: 0010:debug_check_no_obj_freed+0x1d3/0x41c lib/debugobjects.c:998
Code: 39 00 0f 85 0f 02 00 00 48 89 45 08 4d 89 30 4c 89 c7 4d 89 68 08 e8 bc c9 ff ff 48 85 ed 74 2c 49 89 e8 4c 89 c0 48 c1 e8 03 <42> 80 3c 38 00 0f 84 2e ff ff ff 4c 89 c7 4c 89 44 24 38 e8 c5 31
RSP: 0018:ffffc90015d3fa20 EFLAGS: 00010002
RAX: 000000000901f7ce RBX: ffff888213307000 RCX: ffffffff815cf7b0
RDX: 1ffffffff1ad54cc RSI: 0000000000000004 RDI: ffff88800013db40
RBP: 00000000480fbe70 R08: 00000000480fbe70 R09: ffff88804cf752d8
R10: fffff52002ba7f32 R11: 0000000000000000 R12: 0000000000000004
R13: dead000000000122 R14: dead000000000100 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056372ae8e160 CR3: 000000009271c000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 free_pages_prepare mm/page_alloc.c:1214 [inline]
 free_pcp_prepare+0x1f3/0x2f0 mm/page_alloc.c:1244
 free_unref_page_prepare mm/page_alloc.c:3099 [inline]
 free_unref_page_list+0x19a/0x930 mm/page_alloc.c:3168
 release_pages+0x663/0x1810 mm/swap.c:913
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:242 [inline]
 tlb_flush_mmu mm/mmu_gather.c:249 [inline]
 tlb_finish_mmu+0x165/0x8c0 mm/mmu_gather.c:328
 exit_mmap+0x2d1/0x530 mm/mmap.c:3185
 __mmput+0x122/0x470 kernel/fork.c:1076
 mmput+0x53/0x60 kernel/fork.c:1097
 exit_mm kernel/exit.c:483 [inline]
 do_exit+0xa8b/0x29f0 kernel/exit.c:793
 do_group_exit+0x125/0x310 kernel/exit.c:903
 __do_sys_exit_group kernel/exit.c:914 [inline]
 __se_sys_exit_group kernel/exit.c:912 [inline]
 __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:912
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f93e9239618
Code: Bad RIP value.
RSP: 002b:00007ffe83539b98 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007ffe83539c60 RCX: 00007f93e9239618
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00007ffe83539d10 R08: 00000000000000e7 R09: fffffffffffffe50
R10: 00000000ffffffff R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000003 R15: 000000000000000e
Modules linked in:
---[ end trace 59ba9df4d7884c1c ]---
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:956 [inline]
RIP: 0010:debug_check_no_obj_freed+0x1d3/0x41c lib/debugobjects.c:998
Code: 39 00 0f 85 0f 02 00 00 48 89 45 08 4d 89 30 4c 89 c7 4d 89 68 08 e8 bc c9 ff ff 48 85 ed 74 2c 49 89 e8 4c 89 c0 48 c1 e8 03 <42> 80 3c 38 00 0f 84 2e ff ff ff 4c 89 c7 4c 89 44 24 38 e8 c5 31
RSP: 0018:ffffc90015d3fa20 EFLAGS: 00010002
RAX: 000000000901f7ce RBX: ffff888213307000 RCX: ffffffff815cf7b0
RDX: 1ffffffff1ad54cc RSI: 0000000000000004 RDI: ffff88800013db40
RBP: 00000000480fbe70 R08: 00000000480fbe70 R09: ffff88804cf752d8
R10: fffff52002ba7f32 R11: 0000000000000000 R12: 0000000000000004
R13: dead000000000122 R14: dead000000000100 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056372ae8e160 CR3: 000000009271c000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (6):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Maintainers
ci-upstream-kasan-gce	2020/09/23 01:38	upstream	eff48dde	3e8f6c27	.config	log	report	info	akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
ci-upstream-kasan-gce	2020/09/21 08:07	upstream	ba4f184e	9564d2e9	.config	log	report	info	davem@davemloft.net, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com
ci-upstream-kasan-gce	2020/09/15 09:16	upstream	fc4f28bb	6989d6f6	.config	log	report	info	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk
ci-upstream-kasan-gce	2020/09/13 20:44	upstream	e4c26faa	2d3cdd63	.config	log	report		davem@davemloft.net, kuba@kernel.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org
ci-upstream-kasan-gce	2020/09/08 00:53	upstream	f4d51dff	abf9ba4f	.config	log	report		davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci-upstream-kasan-gce	2020/09/03 23:04	upstream	e28f0104	abf9ba4f	.config	log	report		linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk