| Server IP : 172.67.216.182 / Your IP : 172.69.176.121 Web Server : Apache System : Linux krdc-ubuntu-s-2vcpu-4gb-amd-blr1-01.localdomain 5.15.0-142-generic #152-Ubuntu SMP Mon May 19 10:54:31 UTC 2025 x86_64 User : www ( 1000) PHP Version : 7.4.33 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /usr/src/linux-headers-5.15.0-142/scripts/coccinelle/api/ |
Upload File : |
// SPDX-License-Identifier: GPL-2.0-only
///
/// From Documentation/filesystems/sysfs.rst:
/// show() must not use snprintf() when formatting the value to be
/// returned to user space. If you can guarantee that an overflow
/// will never happen you can use sprintf() otherwise you must use
/// scnprintf().
///
// Confidence: High
// Copyright: (C) 2020 Denis Efremov ISPRAS
// Options: --no-includes --include-headers
//
virtual report
virtual org
virtual context
virtual patch
@r depends on !patch@
identifier show, dev, attr, buf;
position p;
@@
ssize_t show(struct device *dev, struct device_attribute *attr, char *buf)
{
<...
* return snprintf@p(...);
...>
}
@rp depends on patch@
identifier show, dev, attr, buf;
@@
ssize_t show(struct device *dev, struct device_attribute *attr, char *buf)
{
<...
return
- snprintf
+ scnprintf
(...);
...>
}
@script: python depends on report@
p << r.p;
@@
coccilib.report.print_report(p[0], "WARNING: use scnprintf or sprintf")
@script: python depends on org@
p << r.p;
@@
coccilib.org.print_todo(p[0], "WARNING: use scnprintf or sprintf")