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author | Philippe Mathieu-Daudé <philmd@redhat.com> | 2021-09-03 19:45:05 +0200 |
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committer | Thomas Huth <thuth@redhat.com> | 2022-07-18 20:24:36 +0200 |
commit | c4f8ce24de81162d925ca24db8adb194b47fffb8 (patch) | |
tree | cc42a041b47a40c66eb4865eac6dab269cf67a10 /scripts/vmstate-static-checker.py | |
parent | e18f27d9ed6132b774910e6ce6999cfc59822e67 (diff) | |
download | qemu-c4f8ce24de81162d925ca24db8adb194b47fffb8.zip qemu-c4f8ce24de81162d925ca24db8adb194b47fffb8.tar.gz qemu-c4f8ce24de81162d925ca24db8adb194b47fffb8.tar.bz2 |
tests/unit: Replace g_memdup() by g_memdup2()
Per https://discourse.gnome.org/t/port-your-module-from-g-memdup-to-g-memdup2-now/5538
The old API took the size of the memory to duplicate as a guint,
whereas most memory functions take memory sizes as a gsize. This
made it easy to accidentally pass a gsize to g_memdup(). For large
values, that would lead to a silent truncation of the size from 64
to 32 bits, and result in a heap area being returned which is
significantly smaller than what the caller expects. This can likely
be exploited in various modules to cause a heap buffer overflow.
Replace g_memdup() by the safer g_memdup2() wrapper.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210903174510.751630-24-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'scripts/vmstate-static-checker.py')
0 files changed, 0 insertions, 0 deletions