audit: type=1400 audit(1601595964.696:8): avc:  denied  { execmem } for  pid=6344 comm="syz-executor588" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
BUG: unable to handle kernel paging request at ffffffffffffff80
IP: diFree+0x12e/0x2830 fs/jfs/jfs_imap.c:872
PGD 7c6d067 P4D 7c6d067 PUD 7c6f067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 6344 Comm: syz-executor588 Not tainted 4.14.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88809f372540 task.stack: ffff888096348000
RIP: 0010:diFree+0x12e/0x2830 fs/jfs/jfs_imap.c:872
RSP: 0018:ffff88809634f9a8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88809b19e040 RCX: ffff88808263a474
RDX: 1ffffffffffffff0 RSI: 0000000000000000 RDI: ffffffffffffff80
RBP: ffff88808263a468 R08: ffffffff8a0b5a10 R09: 0000000000000001
R10: 0000000000000000 R11: ffff88809f372540 R12: ffff88808263a468
R13: ffff88808263a490 R14: ffffffff86d12980 R15: ffff88808263a620
FS:  0000000002378880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffff80 CR3: 0000000097c4c000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 jfs_evict_inode+0xee/0x130 fs/jfs/inode.c:164
 evict+0x2c8/0x700 fs/inode.c:555
 iput_final fs/inode.c:1524 [inline]
 iput+0x458/0x7e0 fs/inode.c:1551
 diFreeSpecial fs/jfs/jfs_imap.c:569 [inline]
 diFreeSpecial+0x63/0x80 fs/jfs/jfs_imap.c:561
 jfs_mount+0x20a/0x380 fs/jfs/jfs_mount.c:222
 jfs_fill_super+0x52a/0xab0 fs/jfs/super.c:589
 mount_bdev+0x2b3/0x360 fs/super.c:1134
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2549 [inline]
 do_mount+0xe53/0x2a00 fs/namespace.c:2879
 SYSC_mount fs/namespace.c:3095 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3072
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x446d5a
RSP: 002b:00007ffc0b79aa08 EFLAGS: 00000283 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc0b79aa60 RCX: 0000000000446d5a
RDX: 0000000020000040 RSI: 00000000200000c0 RDI: 00007ffc0b79aa20
RBP: 00007ffc0b79aa20 R08: 00007ffc0b79aa60 R09: 00007ffc00000015
R10: 0000000000000000 R11: 0000000000000283 R12: 0000000000000002
R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003
Code: 43 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 5b 20 00 00 48 8b 44 24 18 <48> 8b 68 80 48 8b 44 24 20 4c 8d 6d 04 48 c1 e8 0c 4c 89 ea 48 
RIP: diFree+0x12e/0x2830 fs/jfs/jfs_imap.c:872 RSP: ffff88809634f9a8
CR2: ffffffffffffff80
---[ end trace 0961b5d9528370da ]---