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kernel: allow uid 1000(system_uid) to grant root. close #645

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weishu
2023-06-18 13:00:24 +08:00
parent c12ad9d1c7
commit ff8c614737
1 changed files with 8 additions and 2 deletions
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10
kernel/allowlist.c
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@@ -139,13 +139,19 @@ exit:
return found; return found;
} }
static inline bool forbid_system_uid(uid_t uid) {
#define SHELL_UID 2000
#define SYSTEM_UID 1000
return uid < SHELL_UID && uid != SYSTEM_UID;
}
static bool profile_valid(struct app_profile *profile) static bool profile_valid(struct app_profile *profile)
{ {
if (!profile) { if (!profile) {
return false; return false;
} }
if (profile->current_uid < 2000) { if (forbid_system_uid(profile->current_uid)) {
pr_err("uid lower than 2000 is unsupported: %d\n", profile->current_uid); pr_err("uid lower than 2000 is unsupported: %d\n", profile->current_uid);
return false; return false;
} }
@@ -263,7 +269,7 @@ bool __ksu_is_allow_uid(uid_t uid)
return is_ksu_domain(); return is_ksu_domain();
} }
if (uid < 2000) { if (forbid_system_uid(uid)) {
// do not bother going through the list if it's system // do not bother going through the list if it's system
return false; return false;
} }