[Bug 228354] mount_smbfs - long hostname causes stack overflow
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Wed Jun 20 18:29:35 UTC 2018
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=228354
--- Comment #7 from Brooks Davis <brooks at FreeBSD.org> ---
This problem here appears to be unchecked copies from a larger array into a
17-byte array in struct nb_name. I've attached a compiled, but untested patch
to check the size of the hostname before copying.
This restriction seems dumb and it looks like struct nb_name isn't used in
kernel so it may be that we can just increase NB_NAMELEN in
sys/netsmb/netbios.h. I don't know and am not a position to test.
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