diff options
Diffstat (limited to 'security/apparmor/task.c')
| -rw-r--r-- | security/apparmor/task.c | 43 |
1 files changed, 36 insertions, 7 deletions
diff --git a/security/apparmor/task.c b/security/apparmor/task.c index c87fb9f4ac18..0db0e81b4600 100644 --- a/security/apparmor/task.c +++ b/security/apparmor/task.c @@ -15,6 +15,7 @@ #include <linux/gfp.h> #include <linux/ptrace.h> +#include "include/path.h" #include "include/audit.h" #include "include/cred.h" #include "include/policy.h" @@ -228,8 +229,7 @@ static int profile_ptrace_perm(const struct cred *cred, struct aa_label *peer, u32 request, struct apparmor_audit_data *ad) { - struct aa_ruleset *rules = list_first_entry(&profile->rules, - typeof(*rules), list); + struct aa_ruleset *rules = profile->label.rules[0]; struct aa_perms perms = { }; ad->subj_cred = cred; @@ -246,7 +246,7 @@ static int profile_tracee_perm(const struct cred *cred, struct apparmor_audit_data *ad) { if (profile_unconfined(tracee) || unconfined(tracer) || - !ANY_RULE_MEDIATES(&tracee->rules, AA_CLASS_PTRACE)) + !label_mediates(&tracee->label, AA_CLASS_PTRACE)) return 0; return profile_ptrace_perm(cred, tracee, tracer, request, ad); @@ -260,7 +260,7 @@ static int profile_tracer_perm(const struct cred *cred, if (profile_unconfined(tracer)) return 0; - if (ANY_RULE_MEDIATES(&tracer->rules, AA_CLASS_PTRACE)) + if (label_mediates(&tracer->label, AA_CLASS_PTRACE)) return profile_ptrace_perm(cred, tracer, tracee, request, ad); /* profile uses the old style capability check for ptrace */ @@ -301,16 +301,47 @@ int aa_may_ptrace(const struct cred *tracer_cred, struct aa_label *tracer, xrequest, &sa)); } +static const char *get_current_exe_path(char *buffer, int buffer_size) +{ + struct file *exe_file; + struct path p; + const char *path_str; + + exe_file = get_task_exe_file(current); + if (!exe_file) + return ERR_PTR(-ENOENT); + p = exe_file->f_path; + path_get(&p); + + if (aa_path_name(&p, FLAG_VIEW_SUBNS, buffer, &path_str, NULL, NULL)) + return ERR_PTR(-ENOMEM); + + fput(exe_file); + path_put(&p); + + return path_str; +} + /* call back to audit ptrace fields */ static void audit_ns_cb(struct audit_buffer *ab, void *va) { struct apparmor_audit_data *ad = aad_of_va(va); + char *buffer; + const char *path; if (ad->request & AA_USERNS_CREATE) audit_log_format(ab, " requested=\"userns_create\""); if (ad->denied & AA_USERNS_CREATE) audit_log_format(ab, " denied=\"userns_create\""); + + buffer = aa_get_buffer(false); + if (!buffer) + return; // OOM + path = get_current_exe_path(buffer, aa_g_path_max); + if (!IS_ERR(path)) + audit_log_format(ab, " execpath=\"%s\"", path); + aa_put_buffer(buffer); } int aa_profile_ns_perm(struct aa_profile *profile, @@ -324,9 +355,7 @@ int aa_profile_ns_perm(struct aa_profile *profile, ad->request = request; if (!profile_unconfined(profile)) { - struct aa_ruleset *rules = list_first_entry(&profile->rules, - typeof(*rules), - list); + struct aa_ruleset *rules = profile->label.rules[0]; aa_state_t state; state = RULE_MEDIATES(rules, ad->class); |
