audit: type=1804 audit(1550571021.197:82): pid=8374 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir536924565/syzkaller.D9GFim/8925/bus" dev="sda1" ino=17185 res=1
BUG: unable to handle kernel paging request at ffffc90017062000
#PF error: [WRITE]
PGD aa517067 P4D aa517067 PUD aa518067 PMD 98023067 PTE 0
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8372 Comm: vivid-003-vid-c Not tainted 5.0.0-rc7+ #79
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:55
Code: 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 <f3> a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe
RSP: 0018:ffff888094acf7c8 EFLAGS: 00010246
RAX: ffffc90017062000 RBX: dffffc0000000000 RCX: 0000000000000020
RDX: 0000000000000020 RSI: ffffc900028fa000 RDI: ffffc90017062000
RBP: ffff888094acf7e8 R08: 1ffff92002e0c400 R09: fffff52002e0c404
kobject: 'loop5' (0000000017551248): kobject_uevent_env
R10: fffff52002e0c403 R11: ffffc9001706201f R12: 0000000000000020
R13: ffffc90017062000 R14: ffffc900028fa000 R15: ffff88809ddd5ea0
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90017062000 CR3: 000000008aed5000 CR4: 00000000001406f0
Call Trace:
 memcpy include/linux/string.h:352 [inline]
 tpg_fill_plane_pattern drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2400 [inline]
 tpg_fill_plane_buffer+0x10fd/0x2f10 drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2481
 vivid_fillbuff+0x18d2/0x6140 drivers/media/platform/vivid/vivid-kthread-cap.c:467
kobject: 'loop5' (0000000017551248): fill_kobj_path: path = '/devices/virtual/block/loop5'
 vivid_thread_vid_cap_tick drivers/media/platform/vivid/vivid-kthread-cap.c:718 [inline]
 vivid_thread_vid_cap+0xd14/0x2840 drivers/media/platform/vivid/vivid-kthread-cap.c:836
 kthread+0x357/0x430 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
CR2: ffffc90017062000
---[ end trace b023a4bd8315094c ]---
RIP: 0010:memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:55
Code: 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 <f3> a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe
RSP: 0018:ffff888094acf7c8 EFLAGS: 00010246
RAX: ffffc90017062000 RBX: dffffc0000000000 RCX: 0000000000000020
RDX: 0000000000000020 RSI: ffffc900028fa000 RDI: ffffc90017062000
RBP: ffff888094acf7e8 R08: 1ffff92002e0c400 R09: fffff52002e0c404
R10: fffff52002e0c403 R11: ffffc9001706201f R12: 0000000000000020
R13: ffffc90017062000 R14: ffffc900028fa000 R15: ffff88809ddd5ea0
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90017062000 CR3: 000000008aed5000 CR4: 00000000001406f0