Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 196f9f6..b9c658e 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -138,35 +138,40 @@
current->mm->start_stack = (unsigned long)sp & -FLAT_STACK_ALIGN;
sp = (unsigned long __user *)current->mm->start_stack;
- __put_user(bprm->argc, sp++);
+ if (put_user(bprm->argc, sp++))
+ return -EFAULT;
if (IS_ENABLED(CONFIG_BINFMT_FLAT_ARGVP_ENVP_ON_STACK)) {
unsigned long argv, envp;
argv = (unsigned long)(sp + 2);
envp = (unsigned long)(sp + 2 + bprm->argc + 1);
- __put_user(argv, sp++);
- __put_user(envp, sp++);
+ if (put_user(argv, sp++) || put_user(envp, sp++))
+ return -EFAULT;
}
current->mm->arg_start = (unsigned long)p;
for (i = bprm->argc; i > 0; i--) {
- __put_user((unsigned long)p, sp++);
+ if (put_user((unsigned long)p, sp++))
+ return -EFAULT;
len = strnlen_user(p, MAX_ARG_STRLEN);
if (!len || len > MAX_ARG_STRLEN)
return -EINVAL;
p += len;
}
- __put_user(0, sp++);
+ if (put_user(0, sp++))
+ return -EFAULT;
current->mm->arg_end = (unsigned long)p;
current->mm->env_start = (unsigned long) p;
for (i = bprm->envc; i > 0; i--) {
- __put_user((unsigned long)p, sp++);
+ if (put_user((unsigned long)p, sp++))
+ return -EFAULT;
len = strnlen_user(p, MAX_ARG_STRLEN);
if (!len || len > MAX_ARG_STRLEN)
return -EINVAL;
p += len;
}
- __put_user(0, sp++);
+ if (put_user(0, sp++))
+ return -EFAULT;
current->mm->env_end = (unsigned long)p;
return 0;
@@ -534,7 +539,7 @@
/* Flush all traces of the currently running executable */
if (id == 0) {
- ret = flush_old_exec(bprm);
+ ret = begin_new_exec(bprm);
if (ret)
goto err;
@@ -858,7 +863,7 @@
#endif /* CONFIG_BINFMT_FLAT_OLD */
}
- flush_icache_range(start_code, end_code);
+ flush_icache_user_range(start_code, end_code);
/* zero the BSS, BRK and stack areas */
if (clear_user((void __user *)(datapos + data_len), bss_len +
@@ -967,8 +972,6 @@
}
}
- install_exec_creds(bprm);
-
set_binfmt(&flat_format);
#ifdef CONFIG_MMU
@@ -1002,7 +1005,8 @@
unsigned long __user *sp;
current->mm->start_stack -= sizeof(unsigned long);
sp = (unsigned long __user *)current->mm->start_stack;
- __put_user(start_addr, sp);
+ if (put_user(start_addr, sp))
+ return -EFAULT;
start_addr = libinfo.lib_list[i].entry;
}
}