[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH] linux-user: allow to use sudo in guest qemu must ha
From: |
Laurent Vivier |
Subject: |
[Qemu-devel] [PATCH] linux-user: allow to use sudo in guest qemu must have suid/gid bit and root owner/group |
Date: |
Sat, 8 Dec 2012 16:22:11 +0100 |
Signed-off-by: Laurent Vivier <address@hidden>
---
linux-user/linuxload.c | 12 +++++++-----
linux-user/main.c | 3 +++
2 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/linux-user/linuxload.c b/linux-user/linuxload.c
index 381ab89..0fccf58 100644
--- a/linux-user/linuxload.c
+++ b/linux-user/linuxload.c
@@ -58,11 +58,6 @@ static int prepare_binprm(struct linux_binprm *bprm)
bprm->e_uid = geteuid();
bprm->e_gid = getegid();
- /* Set-uid? */
- if(mode & S_ISUID) {
- bprm->e_uid = st.st_uid;
- }
-
/* Set-gid? */
/*
* If setgid is set but no group execute bit then this
@@ -72,6 +67,13 @@ static int prepare_binprm(struct linux_binprm *bprm)
if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) {
bprm->e_gid = st.st_gid;
}
+ setresgid(getgid(), bprm->e_gid, bprm->e_gid);
+
+ /* Set-uid? */
+ if(mode & S_ISUID) {
+ bprm->e_uid = st.st_uid;
+ }
+ setresuid(getuid(), bprm->e_uid, bprm->e_uid);
retval = read(bprm->fd, bprm->buf, BPRM_BUF_SIZE);
if (retval < 0) {
diff --git a/linux-user/main.c b/linux-user/main.c
index 25e35cd..3cddb2e 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -3400,6 +3400,9 @@ int main(int argc, char **argv, char **envp)
int i;
int ret;
+ seteuid(getuid());
+ setegid(getgid());
+
module_call_init(MODULE_INIT_QOM);
qemu_cache_utils_init(envp);
--
1.7.10.4
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [Qemu-devel] [PATCH] linux-user: allow to use sudo in guest qemu must have suid/gid bit and root owner/group,
Laurent Vivier <=