get_vaddr_frames() cannot follow VM_IO mapping
WARNING: CPU: 3 PID: 12737 at drivers/media/common/videobuf2/frame_vector.c:63 get_vaddr_frames drivers/media/common/videobuf2/frame_vector.c:63 [inline]
WARNING: CPU: 3 PID: 12737 at drivers/media/common/videobuf2/frame_vector.c:63 get_vaddr_frames+0x206/0x210 drivers/media/common/videobuf2/frame_vector.c:36
Modules linked in:
CPU: 3 PID: 12737 Comm: syz-executor.1 Not tainted 6.5.0-rc7-syzkaller-00013-g53663f4103ff #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:get_vaddr_frames drivers/media/common/videobuf2/frame_vector.c:63 [inline]
RIP: 0010:get_vaddr_frames+0x206/0x210 drivers/media/common/videobuf2/frame_vector.c:36
Code: af 00 fb e9 03 ff ff ff e8 37 af 00 fb e9 ca fe ff ff e8 ad 7e ad fa 48 c7 c7 60 4e 41 8b c6 05 a5 81 bd 07 01 e8 fa 3f 74 fa <0f> 0b e9 50 ff ff ff 0f 1f 00 f3 0f 1e fa 41 57 41 56 41 55 41 54
RSP: 0018:ffffc90004307828 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88802224c000 RCX: ffffc90003b89000
RDX: 0000000000040000 RSI: ffffffff814be3c6 RDI: 0000000000000001
RBP: ffff88802224c004 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000002d2d2d2d R12: 0000000000000000
R13: 0000000000000000 R14: 00000000fffffff2 R15: 0000000000096000
FS:  00007f2a1c1ab6c0(0000) GS:ffff88806b900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ef21000 CR3: 000000010b33a000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vb2_create_framevec+0x64/0xd0 drivers/media/common/videobuf2/videobuf2-memops.c:52
 vb2_vmalloc_get_userptr+0x137/0x560 drivers/media/common/videobuf2/videobuf2-vmalloc.c:89
 __prepare_userptr.constprop.0+0x6ec/0x15d0 drivers/media/common/videobuf2/videobuf2-core.c:1180
 __buf_prepare+0x620/0x800 drivers/media/common/videobuf2/videobuf2-core.c:1422
 vb2_core_prepare_buf+0xe4/0x320 drivers/media/common/videobuf2/videobuf2-core.c:1561
 vb2_prepare_buf+0xfe/0x180 drivers/media/common/videobuf2/videobuf2-v4l2.c:738
 v4l2_m2m_prepare_buf+0xe8/0x1e0 drivers/media/v4l2-core/v4l2-mem2mem.c:823
 v4l_prepare_buf drivers/media/v4l2-core/v4l2-ioctl.c:2158 [inline]
 v4l_prepare_buf+0x94/0xc0 drivers/media/v4l2-core/v4l2-ioctl.c:2152
 __video_do_ioctl+0xaea/0xef0 drivers/media/v4l2-core/v4l2-ioctl.c:3046
 video_usercopy+0x4c2/0x15c0 drivers/media/v4l2-core/v4l2-ioctl.c:3387
 v4l2_ioctl+0x1bd/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+0x18f/0x210 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2a1b47cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2a1c1ab0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f2a1b59bf80 RCX: 00007f2a1b47cae9
RDX: 0000000020000100 RSI: 00000000c058565d RDI: 0000000000000003
RBP: 00007f2a1b4c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f2a1b59bf80 R15: 00007ffd384d0b38
 </TASK>