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chroot: resolve all ids before chroot

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This commit is contained in:
Victor Prokhorov
2026-05-20 18:49:32 +02:00
committed by Sylvestre Ledru
parent 968f938484
commit f33bfb9321
1 changed files with 4 additions and 1 deletions
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src/uu/chroot/src/chroot.rs
+4 -1
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@@ -390,17 +390,18 @@ fn set_supplemental_gids_with_strategy(
/// Change the root, set the user ID, and set the group IDs for this process.
fn set_context(options: &Options) -> UResult<()> {
enter_chroot(&options.newroot, options.skip_chdir)?;
match &options.userspec {
None | Some(UserSpec::NeitherGroupNorUser) => {
let strategy = Strategy::Nothing;
set_supplemental_gids_with_strategy(strategy, options.groups.as_ref())?;
enter_chroot(&options.newroot, options.skip_chdir)?;
}
Some(UserSpec::UserOnly(user)) => {
let uid = name_to_uid(user)?;
let gid = usr2gid(user).map_err(|_| ChrootError::NoGroupSpecified(uid))?;
let strategy = Strategy::FromUID(uid, false);
set_supplemental_gids_with_strategy(strategy, options.groups.as_ref())?;
enter_chroot(&options.newroot, options.skip_chdir)?;
set_gid(gid).map_err(|e| ChrootError::SetGidFailed(user.to_owned(), e))?;
set_uid(uid).map_err(|e| ChrootError::SetUserFailed(user.to_owned(), e))?;
}
@@ -408,6 +409,7 @@ fn set_context(options: &Options) -> UResult<()> {
let gid = name_to_gid(group)?;
let strategy = Strategy::Nothing;
set_supplemental_gids_with_strategy(strategy, options.groups.as_ref())?;
enter_chroot(&options.newroot, options.skip_chdir)?;
set_gid(gid).map_err(|e| ChrootError::SetGidFailed(group.to_owned(), e))?;
}
Some(UserSpec::UserAndGroup(user, group)) => {
@@ -415,6 +417,7 @@ fn set_context(options: &Options) -> UResult<()> {
let gid = name_to_gid(group)?;
let strategy = Strategy::FromUID(uid, true);
set_supplemental_gids_with_strategy(strategy, options.groups.as_ref())?;
enter_chroot(&options.newroot, options.skip_chdir)?;
set_gid(gid).map_err(|e| ChrootError::SetGidFailed(group.to_owned(), e))?;
set_uid(uid).map_err(|e| ChrootError::SetUserFailed(user.to_owned(), e))?;
}