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util/nvmutil: add defensive buffer check

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Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-17 18:19:40 +00:00
parent 400369b361
commit 38022c5d47
1 changed files with 3 additions and 0 deletions
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util/nvmutil/nvmutil.c
+3
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@@ -162,6 +162,9 @@ main(int argc, char *argv[])
if (argc < 3) if (argc < 3)
usage(); usage();
if (nv->f.buf == NULL)
err(EINVAL, "Work buffer not initialised");
if (CHAR_BIT != 8) if (CHAR_BIT != 8)
err(EINVAL, "Unsupported char size"); err(EINVAL, "Unsupported char size");