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Fix SIOCGDRVSPEC/BRDGGIFSSTP ioctl: make it copyin() the user

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provided buffer length before trying to use it.

Reviewed by:	thompsa
Approved by:	bz (mentor)
MFC after:	3 days
This commit is contained in:
Shteryana Shopova 2006-12-03 21:50:57 +00:00
parent 786e4fc47d
commit b8f45801b0
1 changed files with 1 additions and 1 deletions
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2
sys/net/if_bridge.c
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@ -421,7 +421,7 @@ const struct bridge_control bridge_control_table[] = {
BC_F_COPYOUT },
{ bridge_ioctl_gifsstp, sizeof(struct ifbpstpconf),
BC_F_COPYOUT },
BC_F_COPYIN|BC_F_COPYOUT },
{ bridge_ioctl_sproto, sizeof(struct ifbrparam),
BC_F_COPYIN|BC_F_SUSER },