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-rw-r--r--arch/parisc/kernel/unwind.c2
-rw-r--r--fs/proc/base.c2
-rw-r--r--include/asm-powerpc/kprobes.h4
-rw-r--r--include/linux/kallsyms.h6
-rw-r--r--kernel/kallsyms.c16
-rw-r--r--kernel/lockdep.c4
-rw-r--r--kernel/module.c10
-rw-r--r--kernel/time/timer_list.c2
-rw-r--r--kernel/time/timer_stats.c2
-rw-r--r--mm/slab.c2
-rw-r--r--scripts/kallsyms.c4
11 files changed, 27 insertions, 27 deletions
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 322167737de7..cf780cb3b916 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -242,7 +242,7 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
#ifdef CONFIG_KALLSYMS
/* Handle some frequent special cases.... */
{
- char symname[KSYM_NAME_LEN+1];
+ char symname[KSYM_NAME_LEN];
char *modname;
kallsyms_lookup(info->ip, NULL, NULL, &modname,
diff --git a/fs/proc/base.c b/fs/proc/base.c
index ae3627337a92..42cb4f5613b6 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -283,7 +283,7 @@ static int proc_pid_auxv(struct task_struct *task, char *buffer)
static int proc_pid_wchan(struct task_struct *task, char *buffer)
{
unsigned long wchan;
- char symname[KSYM_NAME_LEN+1];
+ char symname[KSYM_NAME_LEN];
wchan = get_wchan(task);
diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h
index b0e40ff32ee0..9537fda238b8 100644
--- a/include/asm-powerpc/kprobes.h
+++ b/include/asm-powerpc/kprobes.h
@@ -65,10 +65,10 @@ typedef unsigned int kprobe_opcode_t;
} else if (name[0] != '.') \
addr = *(kprobe_opcode_t **)addr; \
} else { \
- char dot_name[KSYM_NAME_LEN+1]; \
+ char dot_name[KSYM_NAME_LEN]; \
dot_name[0] = '.'; \
dot_name[1] = '\0'; \
- strncat(dot_name, name, KSYM_NAME_LEN); \
+ strncat(dot_name, name, KSYM_NAME_LEN - 2); \
addr = (kprobe_opcode_t *)kallsyms_lookup_name(dot_name); \
} \
}
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 5f06527dca21..f73de6fb5c68 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -7,9 +7,9 @@
#include <linux/errno.h>
-#define KSYM_NAME_LEN 127
-#define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + KSYM_NAME_LEN + \
- 2*(BITS_PER_LONG*3/10) + MODULE_NAME_LEN + 1)
+#define KSYM_NAME_LEN 128
+#define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \
+ 2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + 1)
#ifdef CONFIG_KALLSYMS
/* Lookup the address for a symbol. Returns 0 if not found. */
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 0d662475dd9f..474219a41929 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -152,7 +152,7 @@ static unsigned int get_symbol_offset(unsigned long pos)
/* Lookup the address for this symbol. Returns 0 if not found. */
unsigned long kallsyms_lookup_name(const char *name)
{
- char namebuf[KSYM_NAME_LEN+1];
+ char namebuf[KSYM_NAME_LEN];
unsigned long i;
unsigned int off;
@@ -248,7 +248,7 @@ const char *kallsyms_lookup(unsigned long addr,
{
const char *msym;
- namebuf[KSYM_NAME_LEN] = 0;
+ namebuf[KSYM_NAME_LEN - 1] = 0;
namebuf[0] = 0;
if (is_ksym_addr(addr)) {
@@ -265,7 +265,7 @@ const char *kallsyms_lookup(unsigned long addr,
/* see if it's in a module */
msym = module_address_lookup(addr, symbolsize, offset, modname);
if (msym)
- return strncpy(namebuf, msym, KSYM_NAME_LEN);
+ return strncpy(namebuf, msym, KSYM_NAME_LEN - 1);
return NULL;
}
@@ -273,7 +273,7 @@ const char *kallsyms_lookup(unsigned long addr,
int lookup_symbol_name(unsigned long addr, char *symname)
{
symname[0] = '\0';
- symname[KSYM_NAME_LEN] = '\0';
+ symname[KSYM_NAME_LEN - 1] = '\0';
if (is_ksym_addr(addr)) {
unsigned long pos;
@@ -291,7 +291,7 @@ int lookup_symbol_attrs(unsigned long addr, unsigned long *size,
unsigned long *offset, char *modname, char *name)
{
name[0] = '\0';
- name[KSYM_NAME_LEN] = '\0';
+ name[KSYM_NAME_LEN - 1] = '\0';
if (is_ksym_addr(addr)) {
unsigned long pos;
@@ -312,7 +312,7 @@ int sprint_symbol(char *buffer, unsigned long address)
char *modname;
const char *name;
unsigned long offset, size;
- char namebuf[KSYM_NAME_LEN+1];
+ char namebuf[KSYM_NAME_LEN];
name = kallsyms_lookup(address, &size, &offset, &modname, namebuf);
if (!name)
@@ -342,8 +342,8 @@ struct kallsym_iter
unsigned long value;
unsigned int nameoff; /* If iterating in core kernel symbols */
char type;
- char name[KSYM_NAME_LEN+1];
- char module_name[MODULE_NAME_LEN + 1];
+ char name[KSYM_NAME_LEN];
+ char module_name[MODULE_NAME_LEN];
int exported;
};
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 1a5ff2211d88..edba2ffb43de 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -379,7 +379,7 @@ get_usage_chars(struct lock_class *class, char *c1, char *c2, char *c3, char *c4
static void print_lock_name(struct lock_class *class)
{
- char str[KSYM_NAME_LEN + 1], c1, c2, c3, c4;
+ char str[KSYM_NAME_LEN], c1, c2, c3, c4;
const char *name;
get_usage_chars(class, &c1, &c2, &c3, &c4);
@@ -401,7 +401,7 @@ static void print_lock_name(struct lock_class *class)
static void print_lockdep_cache(struct lockdep_map *lock)
{
const char *name;
- char str[KSYM_NAME_LEN + 1];
+ char str[KSYM_NAME_LEN];
name = lock->name;
if (!name)
diff --git a/kernel/module.c b/kernel/module.c
index 539fed9ac83c..33c04ad51175 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2133,7 +2133,7 @@ int lookup_module_symbol_name(unsigned long addr, char *symname)
sym = get_ksymbol(mod, addr, NULL, NULL);
if (!sym)
goto out;
- strlcpy(symname, sym, KSYM_NAME_LEN + 1);
+ strlcpy(symname, sym, KSYM_NAME_LEN);
mutex_unlock(&module_mutex);
return 0;
}
@@ -2158,9 +2158,9 @@ int lookup_module_symbol_attrs(unsigned long addr, unsigned long *size,
if (!sym)
goto out;
if (modname)
- strlcpy(modname, mod->name, MODULE_NAME_LEN + 1);
+ strlcpy(modname, mod->name, MODULE_NAME_LEN);
if (name)
- strlcpy(name, sym, KSYM_NAME_LEN + 1);
+ strlcpy(name, sym, KSYM_NAME_LEN);
mutex_unlock(&module_mutex);
return 0;
}
@@ -2181,8 +2181,8 @@ int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
*value = mod->symtab[symnum].st_value;
*type = mod->symtab[symnum].st_info;
strlcpy(name, mod->strtab + mod->symtab[symnum].st_name,
- KSYM_NAME_LEN + 1);
- strlcpy(module_name, mod->name, MODULE_NAME_LEN + 1);
+ KSYM_NAME_LEN);
+ strlcpy(module_name, mod->name, MODULE_NAME_LEN);
*exported = is_exported(name, mod);
mutex_unlock(&module_mutex);
return 0;
diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index 8bbcfb77f7d2..e5edc3a22a08 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -38,7 +38,7 @@ DECLARE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases);
static void print_name_offset(struct seq_file *m, void *sym)
{
- char symname[KSYM_NAME_LEN+1];
+ char symname[KSYM_NAME_LEN];
if (lookup_symbol_name((unsigned long)sym, symname) < 0)
SEQ_printf(m, "<%p>", sym);
diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
index 9b8a826236dd..8ed62fda16c6 100644
--- a/kernel/time/timer_stats.c
+++ b/kernel/time/timer_stats.c
@@ -269,7 +269,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
static void print_name_offset(struct seq_file *m, unsigned long addr)
{
- char symname[KSYM_NAME_LEN+1];
+ char symname[KSYM_NAME_LEN];
if (lookup_symbol_name(addr, symname) < 0)
seq_printf(m, "<%p>", (void *)addr);
diff --git a/mm/slab.c b/mm/slab.c
index 35056394139b..96d30ee256ef 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -4344,7 +4344,7 @@ static void show_symbol(struct seq_file *m, unsigned long address)
{
#ifdef CONFIG_KALLSYMS
unsigned long offset, size;
- char modname[MODULE_NAME_LEN + 1], name[KSYM_NAME_LEN + 1];
+ char modname[MODULE_NAME_LEN], name[KSYM_NAME_LEN];
if (lookup_symbol_attrs(address, &size, &offset, modname, name) == 0) {
seq_printf(m, "%s+%#lx/%#lx", name, offset, size);
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 8b809b264d18..10b006694e5d 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -31,7 +31,7 @@
#include <string.h>
#include <ctype.h>
-#define KSYM_NAME_LEN 127
+#define KSYM_NAME_LEN 128
struct sym_entry {
@@ -254,7 +254,7 @@ static void write_src(void)
unsigned int i, k, off;
unsigned int best_idx[256];
unsigned int *markers;
- char buf[KSYM_NAME_LEN+1];
+ char buf[KSYM_NAME_LEN];
printf("#include <asm/types.h>\n");
printf("#if BITS_PER_LONG == 64\n");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.