get_vaddr_frames() cannot follow VM_IO mapping
WARNING: CPU: 3 PID: 9449 at drivers/media/common/videobuf2/frame_vector.c:59 get_vaddr_frames drivers/media/common/videobuf2/frame_vector.c:59 [inline]
WARNING: CPU: 3 PID: 9449 at drivers/media/common/videobuf2/frame_vector.c:59 get_vaddr_frames+0x1f2/0x200 drivers/media/common/videobuf2/frame_vector.c:35
Modules linked in:
CPU: 3 PID: 9449 Comm: syz-executor.1 Not tainted 6.1.0-rc7-syzkaller-00140-gbdaa78c6aa86 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:get_vaddr_frames drivers/media/common/videobuf2/frame_vector.c:59 [inline]
RIP: 0010:get_vaddr_frames+0x1f2/0x200 drivers/media/common/videobuf2/frame_vector.c:35
Code: 4e 4c fb e9 0b ff ff ff e8 eb 4e 4c fb e9 d2 fe ff ff e8 e1 36 00 fb 48 c7 c7 60 43 1b 8b c6 05 e8 bd bc 07 01 e8 eb 99 27 03 <0f> 0b e9 56 ff ff ff 0f 1f 80 00 00 00 00 41 57 41 56 41 55 41 54
RSP: 0018:ffffc9000642f820 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88801c641000 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff8164964c RDI: fffff52000c85ef6
RBP: ffff88801c641004 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: 00000000fffffff2
R13: 0000000000000000 R14: 0000000000000000 R15: ffff888023805800
FS:  00007f71819e1700(0000) GS:ffff88802c600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31122000 CR3: 000000005d757000 CR4: 0000000000150ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vb2_create_framevec+0x59/0xd0 drivers/media/common/videobuf2/videobuf2-memops.c:50
 vb2_vmalloc_get_userptr+0x128/0x520 drivers/media/common/videobuf2/videobuf2-vmalloc.c:88
 __prepare_userptr+0x31e/0x1580 drivers/media/common/videobuf2/videobuf2-core.c:1159
 __buf_prepare+0x5e4/0x780 drivers/media/common/videobuf2/videobuf2-core.c:1401
 vb2_core_prepare_buf+0xe4/0x2c0 drivers/media/common/videobuf2/videobuf2-core.c:1540
 vb2_prepare_buf+0x103/0x170 drivers/media/common/videobuf2/videobuf2-v4l2.c:738
 v4l2_m2m_prepare_buf+0xe8/0x210 drivers/media/v4l2-core/v4l2-mem2mem.c:823
 v4l_prepare_buf drivers/media/v4l2-core/v4l2-ioctl.c:2148 [inline]
 v4l_prepare_buf+0x96/0xc0 drivers/media/v4l2-core/v4l2-ioctl.c:2142
 __video_do_ioctl+0xb9d/0xe20 drivers/media/v4l2-core/v4l2-ioctl.c:3037
 video_usercopy+0x3b8/0x17f0 drivers/media/v4l2-core/v4l2-ioctl.c:3384
 v4l2_ioctl+0x1b7/0x250 drivers/media/v4l2-core/v4l2-dev.c:364
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7180c8c0d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f71819e1168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7180dabf80 RCX: 00007f7180c8c0d9
RDX: 0000000020000300 RSI: 00000000c058565d RDI: 0000000000000003
RBP: 00007f7180ce7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe48806c0f R14: 00007f71819e1300 R15: 0000000000022000
 </TASK>