Ludwig Disterhof 5427dda195 media: usbtv: Lock resolution while streaming ...

commit 7e40e0bb77 upstream.

When an program is streaming (ffplay) and another program (qv4l2)
changes the TV standard from NTSC to PAL, the kernel crashes due to trying
to copy to unmapped memory.

Changing from NTSC to PAL increases the resolution in the usbtv struct,
but the video plane buffer isn't adjusted, so it overflows.

Fixes: 0e0fe3958f ("[media] usbtv: Add support for PAL video source")
Cc: stable@vger.kernel.org
Signed-off-by: Ludwig Disterhof <ludwig@disterhof.eu>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
[hverkuil: call vb2_is_busy instead of vb2_is_streaming]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2025-08-28 16:24:29 +02:00

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airspy

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as102

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au0828

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b2c2

media: flexcop-usb: fix sanity check of bNumEndpoints

2024-06-16 13:39:44 +02:00

cpia2

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cx231xx

media: cx231xx: set device_caps for 417

2025-06-04 14:37:58 +02:00

dvb-usb

media: cxusb: no longer judge rbuf when the write fails

2025-06-27 11:05:24 +01:00

dvb-usb-v2

media: lmedm04: Handle errors for lme2510_int_read

2025-03-13 12:50:08 +01:00

em28xx

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go7007

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gspca

media: gspca: Add bounds checking to firmware parser

2025-08-28 16:24:29 +02:00

hackrf

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hdpvr

media: usb: hdpvr: disable zero-length read messages

2025-08-28 16:24:24 +02:00

msi2500

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pvrusb2

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pwc

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s2255

media: s2255: Use refcount_t instead of atomic_t for num_channels

2024-07-18 13:07:28 +02:00

siano

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stk1160

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stkwebcam

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tm6000

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ttusb-budget

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ttusb-dec

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usbtv

media: usbtv: Lock resolution while streaming

2025-08-28 16:24:29 +02:00

uvc

media: uvcvideo: Do not mark valid metadata as invalid

2025-08-28 16:24:27 +02:00

zr364xx

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Kconfig

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Makefile

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