Murad Masimov df6ef66cc3 media: streamzap: prevent processing IR data on URB failure ...

commit 549f6d3481 upstream.

If streamzap_callback() receives an urb with any non-critical error
status, i.e. any error code other than -ECONNRESET, -ENOENT or -ESHUTDOWN,
it will try to process IR data, ignoring a possible transfer failure.

Make streamzap_callback() process IR data only when urb->status is 0.
Move processing logic to a separate function to make code cleaner and
more similar to the URB completion handlers in other RC drivers.

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Fixes: 19770693c3 ("V4L/DVB: staging/lirc: add lirc_streamzap driver")
Cc: stable@vger.kernel.org
Signed-off-by: Murad Masimov <m.masimov@mt-integration.ru>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2025-04-20 10:15:35 +02:00

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img-ir

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keymaps

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ati_remote.c

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bpf-lirc.c

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ene_ir.c

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ene_ir.h

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fintek-cir.c

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fintek-cir.h

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gpio-ir-recv.c

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gpio-ir-tx.c

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igorplugusb.c

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iguanair.c

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imon_raw.c

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imon.c

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ir_toy.c

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ir-hix5hd2.c

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ir-imon-decoder.c

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ir-jvc-decoder.c

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ir-mce_kbd-decoder.c

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ir-nec-decoder.c

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ir-rc5-decoder.c

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ir-rc6-decoder.c

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ir-rcmm-decoder.c

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ir-sanyo-decoder.c

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ir-sharp-decoder.c

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ir-sony-decoder.c

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ir-spi.c

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ir-xmp-decoder.c

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ite-cir.c

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ite-cir.h

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Kconfig

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lirc_dev.c

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Makefile

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mceusb.c

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meson-ir-tx.c

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meson-ir.c

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mtk-cir.c

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nuvoton-cir.c

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nuvoton-cir.h

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pwm-ir-tx.c

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rc-core-priv.h

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rc-ir-raw.c

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rc-loopback.c

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rc-main.c

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redrat3.c

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serial_ir.c

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st_rc.c

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streamzap.c

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sunxi-cir.c

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ttusbir.c

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winbond-cir.c

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xbox_remote.c

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