audit: type=1400 audit(1564449479.489:20595): avc:  denied  { map } for  pid=4676 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
audit: type=1400 audit(1564449479.549:20596): avc:  denied  { map } for  pid=4677 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 4692 Comm: syz-executor.0 Not tainted 4.14.134 #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
audit: type=1400 audit(1564449479.559:20597): avc:  denied  { map } for  pid=4677 comm="blkid" path="/etc/ld.so.cache" dev="sda1" ino=2251 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
task: ffff888033f101c0 task.stack: ffff8881fc6d0000
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:atomic_read arch/x86/include/asm/atomic.h:27 [inline]
RIP: 0010:refcount_sub_and_test+0x2b/0xf0 lib/refcount.c:179
RSP: 0018:ffff8881fc6d7be0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88808f89bac0 RCX: ffffffff84259550
RDX: 0000000000000004 RSI: 0000000000000020 RDI: 0000000000000001
audit: type=1400 audit(1564449479.559:20598): avc:  denied  { map } for  pid=4677 comm="blkid" path="/lib/x86_64-linux-gnu/libblkid.so.1.1.0" dev="sda1" ino=2825 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
RBP: ffff8881fc6d7c08 R08: 0000000001828224 R09: ffff888033f10a88
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000020
R13: 0000000000000001 R14: ffff88808f89bad4 R15: 0000000000000000
FS:  00000000017d9940(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31223000 CR3: 0000000081201000 CR4: 00000000001426f0
Call Trace:
 refcount_dec_and_test+0x1b/0x20 lib/refcount.c:212
audit: type=1400 audit(1564449479.589:20599): avc:  denied  { map } for  pid=4677 comm="blkid" path="/lib/x86_64-linux-gnu/libuuid.so.1.3.0" dev="sda1" ino=2819 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
 vb2_vmalloc_put+0x18/0x70 drivers/media/v4l2-core/videobuf2-vmalloc.c:68
 __vb2_buf_mem_free+0x103/0x1e0 drivers/media/v4l2-core/videobuf2-core.c:240
 __vb2_free_mem drivers/media/v4l2-core/videobuf2-core.c:409 [inline]
 __vb2_queue_free+0x634/0x7d0 drivers/media/v4l2-core/videobuf2-core.c:454
audit: type=1400 audit(1564449479.629:20600): avc:  denied  { map } for  pid=4680 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
 vb2_core_queue_release+0x64/0x80 drivers/media/v4l2-core/videobuf2-core.c:2043
 vb2_queue_release+0x16/0x20 drivers/media/v4l2-core/videobuf2-v4l2.c:669
 v4l2_m2m_ctx_release+0x2d/0x40 drivers/media/v4l2-core/v4l2-mem2mem.c:674
 vim2m_release+0xde/0x130 drivers/media/platform/vim2m.c:959
 v4l2_release+0xf9/0x190 drivers/media/v4l2-core/v4l2-dev.c:446
 __fput+0x275/0x7a0 fs/file_table.c:210
 ____fput+0x16/0x20 fs/file_table.c:244
 task_work_run+0x114/0x190 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1da/0x220 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4bc/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x413511
RSP: 002b:00007ffc83d92a40 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000413511
RDX: 0000000000000000 RSI: 0000000000000081 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffffffffffff
R10: 0000000000760900 R11: 0000000000000293 R12: 000000000075bf20
R13: 0000000000000005 R14: 0000000000760910 R15: ffffffffffffffff
Code: 55 48 89 e5 41 56 41 55 41 89 fd 41 54 49 89 f4 53 48 83 ec 08 e8 06 b0 85 fe 4c 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 
RIP: __read_once_size include/linux/compiler.h:183 [inline] RSP: ffff8881fc6d7be0
RIP: atomic_read arch/x86/include/asm/atomic.h:27 [inline] RSP: ffff8881fc6d7be0
RIP: refcount_sub_and_test+0x2b/0xf0 lib/refcount.c:179 RSP: ffff8881fc6d7be0
---[ end trace 4c2334e1a7faad8b ]---