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| author | Hajime Tazaki <thehajime@gmail.com> | 2024-11-25 14:08:36 +0900 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2024-12-09 01:58:45 +0100 |
| commit | 23db6896830d6b37fc3bcc3ad5a7f725eb97d2e1 (patch) | |
| tree | 76f20faf0405da909b4647dd19cd7ba132ee4aa5 /arch | |
| parent | 75ca8d074bacb6896d770993b93161c40aa31b9f (diff) | |
| download | busybox-w32-23db6896830d6b37fc3bcc3ad5a7f725eb97d2e1.tar.gz busybox-w32-23db6896830d6b37fc3bcc3ad5a7f725eb97d2e1.tar.bz2 busybox-w32-23db6896830d6b37fc3bcc3ad5a7f725eb97d2e1.zip | |
hush: fix G.argv0_for_re_execing to avoid endless loop
When the busybox is used as /sbin/init and the inittab file contains
below:
::respawn:-/bin/sh
/sbin/init spawns hush for the first time with the argv[0] contains '-',
and hush treats it as login shell. Then it reads /etc/profile and if
the file contains the command execution like below, it invokes hush as
login shell because the argv[0] argument is still '-/bin/sh' and reads
/etc/profile again. This will last until some failure (e.g., memory
failure) happens.
[ "$(id -u)" -eq 0 ] && PS1="${PS1}# " || PS1="${PS1}\$ "
This commit fixes this issues by adding an offset (+1) to the
G.argv0_for_re_execing variable.
This issue happens on our out-of-tree UML (use mode linux) with nommu
configuration.
Link: https://lore.kernel.org/all/cover.1731290567.git.thehajime@gmail.com/
Signed-off-by: Hajime Tazaki <thehajime@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions