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Setuid after read proc

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vvb2060 2019-01-26 04:34:29 +08:00 committed by John Wu
parent d6abaf846e
commit 2cf33d635d
1 changed files with 1 additions and 1 deletions
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2
native/jni/su/su_daemon.cpp
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@ -335,7 +335,6 @@ void su_daemon_handler(int client, struct ucred *credential) {
// Setup environment // Setup environment
umask(022); umask(022);
set_identity(ctx.req.uid);
char path[32], buf[4096]; char path[32], buf[4096];
snprintf(path, sizeof(path), "/proc/%d/cwd", ctx.pid); snprintf(path, sizeof(path), "/proc/%d/cwd", ctx.pid);
xreadlink(path, buf, sizeof(buf)); xreadlink(path, buf, sizeof(buf));
@ -363,6 +362,7 @@ void su_daemon_handler(int client, struct ucred *credential) {
} }
} }
set_identity(ctx.req.uid);
execvp(ctx.req.shell, (char **) argv); execvp(ctx.req.shell, (char **) argv);
fprintf(stderr, "Cannot execute %s: %s\n", ctx.req.shell, strerror(errno)); fprintf(stderr, "Cannot execute %s: %s\n", ctx.req.shell, strerror(errno));
PLOGE("exec"); PLOGE("exec");