kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 23383 Comm: syz-executor1 Not tainted 4.19.0-next-20181102+ #104
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vb2_vmalloc_put_userptr+0x73/0x250 drivers/media/common/videobuf2/videobuf2-vmalloc.c:136
Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 c2 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5e 08 48 8d 7b 09 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 72 01 00 00
RSP: 0018:ffff88017169efe8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff113ee10
kobject: 'loop5' (0000000040a002a2): kobject_uevent_env
RDX: 0000000000000001 RSI: ffffffff854f9f99 RDI: 0000000000000009
RBP: ffff88017169f018 R08: ffff8801d4aa4480 R09: ffffed003a3a4f2e
R10: ffff88017169f110 R11: ffff8801d1d27977 R12: ffffc90011609000
R13: 0000000000000000 R14: ffff880182a95580 R15: ffff880182a95580
FS:  00000000023fd940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
kobject: 'loop5' (0000000040a002a2): fill_kobj_path: path = '/devices/virtual/block/loop5'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3632c93000 CR3: 00000001c2556000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __vb2_buf_userptr_put drivers/media/common/videobuf2/videobuf2-core.c:258 [inline]
 __vb2_free_mem drivers/media/common/videobuf2/videobuf2-core.c:417 [inline]
 __vb2_queue_free+0x4b1/0xa30 drivers/media/common/videobuf2/videobuf2-core.c:458
 vb2_core_queue_release+0x62/0x80 drivers/media/common/videobuf2/videobuf2-core.c:2231
kobject: 'loop0' (000000002340396d): kobject_uevent_env
 vb2_queue_release+0x15/0x20 drivers/media/common/videobuf2/videobuf2-v4l2.c:837
 v4l2_m2m_ctx_release+0x2a/0x35 drivers/media/v4l2-core/v4l2-mem2mem.c:931
 vicodec_release+0xbd/0x120 drivers/media/platform/vicodec/vicodec-core.c:1236
 v4l2_release+0x2f2/0x3a0 drivers/media/v4l2-core/v4l2-dev.c:459
 __fput+0x3bc/0xa70 fs/file_table.c:279
kobject: 'loop0' (000000002340396d): fill_kobj_path: path = '/devices/virtual/block/loop0'
 ____fput+0x15/0x20 fs/file_table.c:312
 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x1ad1/0x26d0 kernel/exit.c:867
kobject: 'loop0' (000000002340396d): kobject_uevent_env
kobject: 'loop0' (000000002340396d): fill_kobj_path: path = '/devices/virtual/block/loop0'
 do_group_exit+0x177/0x440 kernel/exit.c:970
 get_signal+0x8a8/0x1970 kernel/signal.c:2517
 do_signal+0x9c/0x21c0 arch/x86/kernel/signal.c:816
kobject: 'loop2' (000000005ab8bf3c): kobject_uevent_env
kobject: 'loop2' (000000005ab8bf3c): fill_kobj_path: path = '/devices/virtual/block/loop2'
 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
kobject: 'loop3' (0000000037a97f54): kobject_uevent_env
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
kobject: 'loop3' (0000000037a97f54): fill_kobj_path: path = '/devices/virtual/block/loop3'
RIP: 0033:0x457569
Code: Bad RIP value.
RSP: 002b:00007fff98a78cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 000000000072bf00 RCX: 0000000000457569
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000072bf0c
kobject: 'loop5' (0000000040a002a2): kobject_uevent_env
RBP: 000000000000002d R08: 0000000000000000 R09: 0000000000000000
R10: 00007fff98a78dc0 R11: 0000000000000246 R12: 000000000072bf0c
R13: 00000000000003e8 R14: 0000000000081165 R15: 0000000000081138
Modules linked in:
kobject: 'loop5' (0000000040a002a2): fill_kobj_path: path = '/devices/virtual/block/loop5'
---[ end trace d4b2b13994cccdad ]---
RIP: 0010:vb2_vmalloc_put_userptr+0x73/0x250 drivers/media/common/videobuf2/videobuf2-vmalloc.c:136
Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 c2 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5e 08 48 8d 7b 09 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 72 01 00 00
kobject: 'loop4' (00000000fab291bc): kobject_uevent_env
kobject: 'loop4' (00000000fab291bc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (000000002340396d): kobject_uevent_env
RSP: 0018:ffff88017169efe8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff113ee10
kobject: 'loop0' (000000002340396d): fill_kobj_path: path = '/devices/virtual/block/loop0'
RDX: 0000000000000001 RSI: ffffffff854f9f99 RDI: 0000000000000009
RBP: ffff88017169f018 R08: ffff8801d4aa4480 R09: ffffed003a3a4f2e
R10: ffff88017169f110 R11: ffff8801d1d27977 R12: ffffc90011609000
R13: 0000000000000000 R14: ffff880182a95580 R15: ffff880182a95580
kobject: 'loop3' (0000000037a97f54): kobject_uevent_env
FS:  00000000023fd940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop3' (0000000037a97f54): fill_kobj_path: path = '/devices/virtual/block/loop3'
CR2: 0000000000625208 CR3: 0000000185df1000 CR4: 00000000001406f0
kobject: 'loop2' (000000005ab8bf3c): kobject_uevent_env
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'loop2' (000000005ab8bf3c): fill_kobj_path: path = '/devices/virtual/block/loop2'
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400