[gnutls-devel] GnuTLS | lib/iov.c:119: null pointer passed as argument 2 to memcpy() (#882)

Development of GNU's TLS library gnutls-devel at lists.gnutls.org
Fri Jan 3 17:02:04 CET 2020

Daiki Ueno commented:

@rockdaboot thanks, and sorry for not getting back to you earlier.

> The Q still is: should we allow iov_base being NULL or not.

That seems like a good point: even though POSIX doesn't mention any limitation on the iov_base value, the empty case can be handled with an empty vector instead. I couldn't find such checks even in Linux kernel's iov_iter.c and related code. So perhaps we should try to fix the caller (crypto-selftests.c) as well.

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