Liu Shixin 94a7ad9283 media: vivid: fix compose size exceed boundary ... syzkaller found a bug: BUG: unable to handle page fault for address: ffffc9000a3b1000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 100000067 P4D 100000067 PUD 10015f067 PMD 1121ca067 PTE 0 Oops: 0002 [#1] PREEMPT SMP CPU: 0 PID: 23489 Comm: vivid-000-vid-c Not tainted 6.1.0-rc1+ #512 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 RIP: 0010:memcpy_erms+0x6/0x10 [...] Call Trace: <TASK> ? tpg_fill_plane_buffer+0x856/0x15b0 vivid_fillbuff+0x8ac/0x1110 vivid_thread_vid_cap_tick+0x361/0xc90 vivid_thread_vid_cap+0x21a/0x3a0 kthread+0x143/0x180 ret_from_fork+0x1f/0x30 </TASK> This is because we forget to check boundary after adjust compose->height int V4L2_SEL_TGT_CROP case. Add v4l2_rect_map_inside() to fix this problem for this case. Fixes: ef834f7836 ("[media] vivid: add the video capture and output parts") Signed-off-by: Liu Shixin <liushixin2@huawei.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>		2022-11-04 16:56:44 +01:00
..
vicodec	media: vicodec: Use vb2_find_buffer	2022-07-17 11:12:43 +01:00
vidtv	i2c: Make remove callback return void	2022-08-16 12:46:26 +02:00
vimc	media: drivers: use video device pipeline start/stop	2022-09-24 09:14:20 +02:00
vivid	media: vivid: fix compose size exceed boundary	2022-11-04 16:56:44 +01:00
Kconfig	media: media/*/Kconfig: sort entries	2022-03-18 05:58:35 +01:00
Makefile	media: Makefiles: sort entries where it fits	2022-03-14 09:42:59 +01:00
vim2m.c	media: avoid use of 'videobuf'	2022-08-29 16:27:18 +02:00