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| author | Philip Withnall <pwithnall@endlessos.org> | 2021-02-04 13:30:52 +0000 |
|---|---|---|
| committer | Philip Withnall <pwithnall@endlessos.org> | 2021-02-04 14:13:03 +0000 |
| commit | f8cf0b8672209e0b829542e194e302f1de169929 (patch) | |
| tree | 638f0e4bc5ce8111818735d6d1f13de50123e181 /docs/reference/glib/glib-sections.txt | |
| parent | 8385664f47dc7b1dea207989ce0065e48c559fe7 (diff) | |
| download | glib-f8cf0b8672209e0b829542e194e302f1de169929.tar.gz | |
gstrfuncs: Add g_memdup2() function
This will replace the existing `g_memdup()` function, which has an
unavoidable security flaw of taking its `byte_size` argument as a
`guint` rather than as a `gsize`. Most callers will expect it to be a
`gsize`, and may pass in large values which could silently be truncated,
resulting in an undersize allocation compared to what the caller
expects.
This could lead to a classic buffer overflow vulnerability for many
callers of `g_memdup()`.
`g_memdup2()`, in comparison, takes its `byte_size` as a `gsize`.
Spotted by Kevin Backhouse of GHSL.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: GHSL-2021-045
Helps: #2319
Diffstat (limited to 'docs/reference/glib/glib-sections.txt')
| -rw-r--r-- | docs/reference/glib/glib-sections.txt | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/docs/reference/glib/glib-sections.txt b/docs/reference/glib/glib-sections.txt index d0121801a..2e219cf0c 100644 --- a/docs/reference/glib/glib-sections.txt +++ b/docs/reference/glib/glib-sections.txt @@ -1341,6 +1341,7 @@ g_newa <SUBSECTION> g_memmove g_memdup +g_memdup2 <SUBSECTION> GMemVTable |