BUG: unable to handle kernel paging request in diFree

BUG: unable to handle kernel paging request in diFree
Status: upstream: reported C repro on 2020/09/28 07:48
Reported-by: syzbot+0a89a7b56db04c21a656@syzkaller.appspotmail.com
First crash: 203d, last: 2h51m

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config

similar bugs (3):
Kernel	Title	Repro	Count	Last	Reported	Patched	Status
linux-4.19	BUG: unable to handle kernel paging request in diFree	C	10	6d06h	198d	0/1	upstream: reported C repro on 2020/09/29 04:03
linux-4.14	BUG: unable to handle kernel paging request in diFree	C	4	24d	203d	0/1	upstream: reported C repro on 2020/09/23 16:53
linux-4.14	general protection fault in diFree		1	76d	76d	0/1	upstream: reported on 2021/01/28 19:31

Sample crash report:

ERROR: (device loop0): xtSearch: XT_GETPAGE: xtree page corrupt
BUG: unable to handle page fault for address: ffffffffffffff80
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD b08f067 P4D b08f067 PUD b091067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8472 Comm: syz-executor936 Not tainted 5.10.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:diFree+0x13d/0x2dc0 fs/jfs/jfs_imap.c:853
Code: 28 48 8d 78 80 48 89 44 24 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ef 23 00 00 48 8b 44 24 18 <4c> 8b 60 80 48 8b 44 24 20 49 8d 6c 24 04 48 c1 e8 0c 48 89 ea 48
RSP: 0018:ffffc900011cf960 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88801c1aa600 RCX: ffffffff82a84967
RDX: 1ffffffffffffff0 RSI: ffffffff82aa7952 RDI: ffffffffffffff80
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff88802f75090f
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88802f750db8
R13: ffff88802f750d08 R14: ffffffff89829b80 R15: ffff88802f750ce0
FS:  0000000000ca5880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffff80 CR3: 000000001424e000 CR4: 0000000000350ee0
Call Trace:
 jfs_evict_inode+0x2c9/0x370 fs/jfs/inode.c:154
 evict+0x2ed/0x750 fs/inode.c:578
 iput_final fs/inode.c:1654 [inline]
 iput.part.0+0x3fe/0x820 fs/inode.c:1680
 iput+0x58/0x70 fs/inode.c:1670
 diFreeSpecial fs/jfs/jfs_imap.c:550 [inline]
 diFreeSpecial+0x6f/0x90 fs/jfs/jfs_imap.c:542
 jfs_mount+0x23f/0x3d0 fs/jfs/jfs_mount.c:210
 jfs_fill_super+0x5b1/0xbc0 fs/jfs/super.c:562
 mount_bdev+0x32e/0x3f0 fs/super.c:1419
 legacy_get_tree+0x105/0x220 fs/fs_context.c:592
 vfs_get_tree+0x89/0x2f0 fs/super.c:1549
 do_new_mount fs/namespace.c:2875 [inline]
 path_mount+0x13ad/0x20c0 fs/namespace.c:3205
 do_mount fs/namespace.c:3218 [inline]
 __do_sys_mount fs/namespace.c:3426 [inline]
 __se_sys_mount fs/namespace.c:3403 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3403
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446dea
Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007ffd1d0fafe8 EFLAGS: 00000283 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffd1d0fb030 RCX: 0000000000446dea
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd1d0faff0
RBP: 00007ffd1d0faff0 R08: 00007ffd1d0fb030 R09: 6f6f6c2f7665642f
R10: 0000000000008001 R11: 0000000000000283 R12: 0000000000000004
R13: 0000000000000003 R14: 0000000000000003 R15: 0000000000000006
Modules linked in:
CR2: ffffffffffffff80
---[ end trace 79bc54c5fb4624ff ]---
RIP: 0010:diFree+0x13d/0x2dc0 fs/jfs/jfs_imap.c:853
Code: 28 48 8d 78 80 48 89 44 24 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ef 23 00 00 48 8b 44 24 18 <4c> 8b 60 80 48 8b 44 24 20 49 8d 6c 24 04 48 c1 e8 0c 48 89 ea 48
RSP: 0018:ffffc900011cf960 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88801c1aa600 RCX: ffffffff82a84967
RDX: 1ffffffffffffff0 RSI: ffffffff82aa7952 RDI: ffffffffffffff80
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff88802f75090f
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88802f750db8
R13: ffff88802f750d08 R14: ffffffff89829b80 R15: ffff88802f750ce0
FS:  0000000000ca5880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffff80 CR3: 000000001424e000 CR4: 0000000000350ee0

Fix bisection attempts:
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro
ci-upstream-kasan-gce-root	2021/04/01 07:38	upstream	d19cc4bf	e6b0d314	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2021/03/01 05:12	upstream	fe07bfda	e6b0d314	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2021/01/02 14:12	upstream	eda809ae	e6b0d314	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/11/07 15:41	upstream	659caaf6	1880b4a9	.config	log	report	syz	C

Crashes (9):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce-root	2020/12/03 13:56	upstream	34816d20	e6b0d314	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/11/23 23:44	upstream	418baf2c	878fb17a	.config	log	report	syz	C
ci-upstream-kasan-gce-selinux-root	2020/10/08 12:39	upstream	c85fb28b	1880b4a9	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/09/27 12:59	upstream	eeddbe68	5dd8aee8	.config	log	report	syz	C
ci-upstream-kasan-gce-smack-root	2020/09/24 02:11	upstream	805c6d3c	287cd75a	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/11/19 03:55	linux-next	20529233	0767f13f	.config	log	report	syz	C
ci-upstream-linux-next-kasan-gce-root	2020/11/16 18:35	linux-next	03430750	1bf9a662	.config	log	report	syz	C
ci-upstream-kasan-gce-root	2021/04/15 04:55	upstream	7f75285c	fcdb12ba	.config	log	report			info	BUG: unable to handle kernel paging request in diFree
ci-upstream-kasan-gce-smack-root	2020/09/24 01:56	upstream	805c6d3c	287cd75a	.config	log	report			info