media: drivers/media/dvb-core: copy user arrays safely

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At several positions in dvb_frontend.c, memdup_user() is utilized to
copy userspace arrays. This is done without overflow checks.

Use the new wrapper memdup_array_user() to copy the arrays more safely.

Link: https://lore.kernel.org/linux-media/20231102191633.52592-2-pstanner@redhat.com
Suggested-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

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Philipp Stanner 2023-11-02 20:16:34 +01:00 • committed by Mauro Carvalho Chehab

parent 8f667d2023

commit 102fb77c2d

1 changed files with 8 additions and 4 deletions

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drivers/media/dvb-core/dvb_frontend.c

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