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remount-fs: refuse to remount based on fstab when fstab=no kernel command line option specified

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Otherwise, if for some reasons remount-fs is invoked even when fstab=no is
specified, mounts may get unexpected options from fstab.

For safety, let's parse the kernel command line option.
This commit is contained in:
Yu Watanabe 2023-08-09 02:02:23 +09:00
parent 1be6f21320
commit a38de31c8b
1 changed files with 3 additions and 0 deletions
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src/remount-fs/remount-fs.c
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@ -78,6 +78,9 @@ static int remount_by_fstab(Hashmap **ret_pids) {
assert(ret_pids);
if (!fstab_enabled())
return 0;
f = setmntent(fstab_path(), "re");
if (!f) {
if (errno != ENOENT)