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Diffstat (limited to 'kernel')
-rw-r--r--kernel/audit_watch.c2
-rw-r--r--kernel/gcov/gcc_4_7.c4
-rw-r--r--kernel/kmod.c9
-rw-r--r--kernel/kprobes.c14
-rw-r--r--kernel/printk/printk.c3
-rw-r--r--kernel/sys.c4
-rw-r--r--kernel/trace/ftrace.c9
-rw-r--r--kernel/trace/trace.c5
-rw-r--r--kernel/trace/trace_entries.h2
-rw-r--r--kernel/trace/trace_events.c2
10 files changed, 42 insertions, 12 deletions
diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
index f45a9a5d3e47..af453f3c2b3d 100644
--- a/kernel/audit_watch.c
+++ b/kernel/audit_watch.c
@@ -316,8 +316,6 @@ static void audit_update_watch(struct audit_parent *parent,
if (oentry->rule.exe)
audit_remove_mark(oentry->rule.exe);
- audit_watch_log_rule_change(r, owatch, "updated_rules");
-
call_rcu(&oentry->rcu, audit_free_rule_rcu);
}
diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c
index 46a18e72bce6..6d5ef6220afe 100644
--- a/kernel/gcov/gcc_4_7.c
+++ b/kernel/gcov/gcc_4_7.c
@@ -18,7 +18,9 @@
#include <linux/vmalloc.h>
#include "gcov.h"
-#if (__GNUC__ >= 7)
+#if (__GNUC__ >= 10)
+#define GCOV_COUNTERS 8
+#elif (__GNUC__ >= 7)
#define GCOV_COUNTERS 9
#elif (__GNUC__ > 5) || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)
#define GCOV_COUNTERS 10
diff --git a/kernel/kmod.c b/kernel/kmod.c
index e4e5e98002fe..3f3bbae4cec3 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -28,6 +28,7 @@
#include <linux/cred.h>
#include <linux/file.h>
#include <linux/fdtable.h>
+#include <linux/fs_struct.h>
#include <linux/workqueue.h>
#include <linux/security.h>
#include <linux/mount.h>
@@ -223,6 +224,14 @@ static int call_usermodehelper_exec_async(void *data)
spin_unlock_irq(&current->sighand->siglock);
/*
+ * Initial kernel threads share ther FS with init, in order to
+ * get the init root directory. But we've now created a new
+ * thread that is going to execve a user process and has its own
+ * 'struct fs_struct'. Reset umask to the default.
+ */
+ current->fs->umask = 0022;
+
+ /*
* Our parent (unbound workqueue) runs with elevated scheduling
* priority. Avoid propagating that into the userspace child.
*/
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 9241a29a1f9d..33c37dbc56a0 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -2012,6 +2012,9 @@ static void kill_kprobe(struct kprobe *p)
{
struct kprobe *kp;
+ if (WARN_ON_ONCE(kprobe_gone(p)))
+ return;
+
p->flags |= KPROBE_FLAG_GONE;
if (kprobe_aggrprobe(p)) {
/*
@@ -2032,9 +2035,10 @@ static void kill_kprobe(struct kprobe *p)
/*
* The module is going away. We should disarm the kprobe which
- * is using ftrace.
+ * is using ftrace, because ftrace framework is still available at
+ * MODULE_STATE_GOING notification.
*/
- if (kprobe_ftrace(p))
+ if (kprobe_ftrace(p) && !kprobe_disabled(p) && !kprobes_all_disarmed)
disarm_kprobe_ftrace(p);
}
@@ -2154,7 +2158,10 @@ static int kprobes_module_callback(struct notifier_block *nb,
mutex_lock(&kprobe_mutex);
for (i = 0; i < KPROBE_TABLE_SIZE; i++) {
head = &kprobe_table[i];
- hlist_for_each_entry_rcu(p, head, hlist)
+ hlist_for_each_entry_rcu(p, head, hlist) {
+ if (kprobe_gone(p))
+ continue;
+
if (within_module_init((unsigned long)p->addr, mod) ||
(checkcore &&
within_module_core((unsigned long)p->addr, mod))) {
@@ -2165,6 +2172,7 @@ static int kprobes_module_callback(struct notifier_block *nb,
*/
kill_kprobe(p);
}
+ }
}
mutex_unlock(&kprobe_mutex);
return NOTIFY_DONE;
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 4bbafc2a4822..78a906303e6d 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2039,6 +2039,9 @@ static int __init console_setup(char *str)
char *s, *options, *brl_options = NULL;
int idx;
+ if (str[0] == 0)
+ return 1;
+
if (_braille_console_setup(&str, &brl_options))
return 1;
diff --git a/kernel/sys.c b/kernel/sys.c
index 29413e2bee41..5a40f5c07054 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1185,11 +1185,13 @@ SYSCALL_DEFINE1(uname, struct old_utsname __user *, name)
SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
{
- struct oldold_utsname tmp = {};
+ struct oldold_utsname tmp;
if (!name)
return -EFAULT;
+ memset(&tmp, 0, sizeof(tmp));
+
down_read(&uts_sem);
memcpy(&tmp.sysname, &utsname()->sysname, __OLD_UTS_LEN);
memcpy(&tmp.nodename, &utsname()->nodename, __OLD_UTS_LEN);
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index e4c6f89b6b11..89ed01911a9a 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -2823,8 +2823,11 @@ static int referenced_filters(struct dyn_ftrace *rec)
int cnt = 0;
for (ops = ftrace_ops_list; ops != &ftrace_list_end; ops = ops->next) {
- if (ops_references_rec(ops, rec))
- cnt++;
+ if (ops_references_rec(ops, rec)) {
+ cnt++;
+ if (ops->flags & FTRACE_OPS_FL_SAVE_REGS)
+ rec->flags |= FTRACE_FL_REGS;
+ }
}
return cnt;
@@ -2874,7 +2877,7 @@ static int ftrace_update_code(struct module *mod, struct ftrace_page *new_pgs)
p = &pg->records[i];
if (test)
cnt += referenced_filters(p);
- p->flags = cnt;
+ p->flags += cnt;
/*
* Do the initial record conversion from mcount jump
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index b0ebb271bae7..18f7913a4ef1 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2323,6 +2323,9 @@ int trace_array_printk(struct trace_array *tr,
if (!(global_trace.trace_flags & TRACE_ITER_PRINTK))
return 0;
+ if (!tr)
+ return -ENOENT;
+
va_start(ap, fmt);
ret = trace_array_vprintk(tr, ip, fmt, ap);
va_end(ap);
@@ -7424,7 +7427,7 @@ __init static int tracer_alloc_buffers(void)
goto out_free_buffer_mask;
/* Only allocate trace_printk buffers if a trace_printk exists */
- if (__stop___trace_bprintk_fmt != __start___trace_bprintk_fmt)
+ if (&__stop___trace_bprintk_fmt != &__start___trace_bprintk_fmt)
/* Must be called before global_trace.buffer is allocated */
trace_printk_init_buffers();
diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h
index ee7b94a4810a..246db27dbdc9 100644
--- a/kernel/trace/trace_entries.h
+++ b/kernel/trace/trace_entries.h
@@ -178,7 +178,7 @@ FTRACE_ENTRY(kernel_stack, stack_entry,
F_STRUCT(
__field( int, size )
- __dynamic_array(unsigned long, caller )
+ __array( unsigned long, caller, FTRACE_STACK_ENTRIES )
),
F_printk("\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n\t=> (" IP_FMT ")\n"
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index d0451cfd9daa..faeb44077cd8 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -756,6 +756,8 @@ static int ftrace_set_clr_event(struct trace_array *tr, char *buf, int set)
char *event = NULL, *sub = NULL, *match;
int ret;
+ if (!tr)
+ return -ENOENT;
/*
* The buf format can be <subsystem>:<event-name>
* *:<event-name> means any event by that name.
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-08 11:36:39 +0000