19 lines
706 B
Diff
19 lines
706 B
Diff
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Index: libarchive-3.1.2/libarchive/archive_write.c
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===================================================================
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--- libarchive-3.1.2.orig/libarchive/archive_write.c
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+++ libarchive-3.1.2/libarchive/archive_write.c
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@@ -671,8 +671,13 @@ static ssize_t
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_archive_write_data(struct archive *_a, const void *buff, size_t s)
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{
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struct archive_write *a = (struct archive_write *)_a;
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+ size_t max_write = INT_MAX;
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+
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archive_check_magic(&a->archive, ARCHIVE_WRITE_MAGIC,
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ARCHIVE_STATE_DATA, "archive_write_data");
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+ /* This catches attempts to pass negative values. */
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+ if (s > max_write)
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+ s = max_write;
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archive_clear_error(&a->archive);
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return ((a->format_write_data)(a, buff, s));
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}
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