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util/nvmutil: block bad offset in io_args

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Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-13 15:20:00 +00:00
parent 14ab4c1b25
commit 83f67bf02a
1 changed files with 4 additions and 0 deletions
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util/nvmutil/nvmutil.c
+4
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@@ -1716,6 +1716,10 @@ static int
io_args(int fd, void *mem, size_t nrw, io_args(int fd, void *mem, size_t nrw,
off_t off, int rw_type) off_t off, int rw_type)
{ {
if (off > 0
&& off != GBE_PART_SIZE)
goto err_io_args;
if (nrw != GBE_PART_SIZE && if (nrw != GBE_PART_SIZE &&
nrw != NVM_SIZE && nrw != NVM_SIZE &&
nrw != NUM_RANDOM_BYTES) nrw != NUM_RANDOM_BYTES)