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author | Michael Gran <spk121@yahoo.com> | 2020-12-30 15:16:02 -0800 |
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committer | Michael Gran <spk121@yahoo.com> | 2021-01-21 19:35:15 -0800 |
commit | 75b0db1a286f936a90683973efc2315a07c03b21 (patch) | |
tree | e32dc7eb885345533047bd0e5661de5ccaa0563b /libguile | |
parent | 91d4d311846b640efdd5705eb0c36217e373c01a (diff) | |
download | guile-75b0db1a286f936a90683973efc2315a07c03b21.tar.gz |
getsockopt may return garbage for parameters < sizeof(int)
Uninitialized variable.
* libguile/socket.c (scm_getsockopt): zeroize arguments before use
Diffstat (limited to 'libguile')
-rw-r--r-- | libguile/socket.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libguile/socket.c b/libguile/socket.c index 64354f1f1..8af6f57bf 100644 --- a/libguile/socket.c +++ b/libguile/socket.c @@ -1,4 +1,4 @@ -/* Copyright 1996-1998,2000-2007,2009,2011-2015,2018 +/* Copyright 1996-1998,2000-2007,2009,2011-2015,2018,2021 Free Software Foundation, Inc. This file is part of Guile. @@ -493,6 +493,7 @@ SCM_DEFINE (scm_getsockopt, "getsockopt", 3, 0, 0, int ilevel; int ioptname; + memset (&optval, 0, optlen); sock = SCM_COERCE_OUTPORT (sock); SCM_VALIDATE_OPFPORT (1, sock); ilevel = scm_to_int (level); |