Chen Gang ff0102ee10 net: irda: using kzalloc() instead of kmalloc() to avoid strncpy() issue. ...

'discovery->data.info' length is 22, NICKNAME_MAX_LEN is 21, so the
strncpy() will always left the last byte of 'discovery->data.info'
uninitialized.

When 'text' length is longer than 21 (NICKNAME_MAX_LEN), if still left
the last byte of 'discovery->data.info' uninitialized, the next
strlen() will cause issue.

Also 'discovery->data' is 'struct irda_device_info' which defined in
"include/uapi/...", it may copy to user mode, so need whole initialized.

All together, need use kzalloc() instead of kmalloc() to initialize all
members firstly.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2013-05-19 15:10:47 -07:00

..

ircomm

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irlan

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irnet

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af_irda.c

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discovery.c

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irda_device.c

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iriap_event.c

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iriap.c

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irias_object.c

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irlap_event.c

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irlap_frame.c

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irlap.c

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irlmp_event.c

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irlmp_frame.c

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irlmp.c

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irmod.c

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irnetlink.c

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irproc.c

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irqueue.c

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irsysctl.c

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irttp.c

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Kconfig

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Makefile

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parameters.c

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qos.c

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timer.c

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wrapper.c

…