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util/nvmutil: check inode during post-verify

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Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-14 18:24:53 +00:00
parent 30e953dc8f
commit 5f6038af5d
1 changed files with 7 additions and 0 deletions
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util/nvmutil/nvmutil.c
+7
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@@ -1601,6 +1601,7 @@ check_written_part(size_t p)
u8 *mem_offset; u8 *mem_offset;
off_t file_offset; off_t file_offset;
u8 *buf_restore; u8 *buf_restore;
struct stat st;
if (!part_modified[p]) if (!part_modified[p])
return; return;
@@ -1613,6 +1614,12 @@ check_written_part(size_t p)
memset(pad, 0xff, sizeof(pad)); memset(pad, 0xff, sizeof(pad));
if (fstat(gbe_fd, &st) == -1)
err(errno, "%s: fstat (post-write)", fname);
if (st.st_dev != gbe_dev || st.st_ino != gbe_ino)
err(EIO, "%s: file changed during write", fname);
r = rw_gbe_file_exact(gbe_fd, pad, r = rw_gbe_file_exact(gbe_fd, pad,
gbe_rw_size, file_offset, IO_PREAD); gbe_rw_size, file_offset, IO_PREAD);