Le 27/09/2022 à 14:43, Laurent Vivier a écrit :
If path is /proc/self/exe, use the executable path
provided by exec_path.
Don't use execfd as it is closed by loader_exec() and otherwise
will survive to the exec() syscall and be usable child process.
Signed-off-by: Laurent Vivier <[email protected]>
---
linux-user/syscall.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index f4091212027c..ddf09d7eb61a 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -8843,7 +8843,11 @@ static abi_long do_syscall1(CPUArchState *cpu_env, int
num, abi_long arg1,
* before the execve completes and makes it the other
* program's problem.
*/
- ret = get_errno(safe_execve(p, argp, envp));
+ if (is_proc_myself(p, "exe")) {
+ ret = get_errno(safe_execve(exec_path, argp, envp));
+ } else {
+ ret = get_errno(safe_execve(p, argp, envp));
+ }
unlock_user(p, arg1, 0);
goto execve_end;
Applied to my linux-user-for-7.2 branch.
Thanks,
Laurent
