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util/nvmutil: guard against unlinking file

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if someone deletes gbe.bin while operating, nvmutil
will now abort

Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-14 18:19:25 +00:00
parent cde085d54e
commit ebffecf04b
1 changed files with 3 additions and 0 deletions
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3
util/nvmutil/nvmutil.c
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@@ -930,6 +930,9 @@ open_gbe_file(void)
xopen(&gbe_fd, fname,
command[cmd_index].flags | O_BINARY | O_NOFOLLOW, &gbe_st);
if (gbe_st.st_nlink == 0)
err(EIO, "%s: file unlinked while open", fname);
flags = fcntl(gbe_fd, F_GETFL);
if (flags == -1)
err(errno, "%s: fcntl(F_GETFL)", fname);