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scd: Avoid buffer overrun with more than 16 PC/SC readers.

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* scd/apdu.c (apdu_dev_list_start): Fix end condition.

--

Signed-off-by: Jakub Jelen <jjelen@redhat.com>

This is part of
GnuPG-bug-id: 7129
Fixes-commit: e8534f899915a039610973a84042cbe25a5e7ce2
This commit is contained in:
Jakub Jelen 2024-05-28 16:57:41 +02:00 committed by Werner Koch
parent 379fc5569d
commit 4c1b007035
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GPG Key ID: E3FDFF218E45B72B
1 changed files with 1 additions and 1 deletions
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scd/apdu.c
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@ -2094,7 +2094,7 @@ apdu_dev_list_start (const char *portstr, struct dev_list **l_p)
nreader -= n + 1;
p += n + 1;
dl->idx_max++;
if (dl->idx_max > MAX_READER)
if (dl->idx_max >= MAX_READER)
{
log_error ("too many readers from pcsc_list_readers\n");
dl->idx_max--;