linux-kernel - [PATCH] random: Check kmalloc return value and give the failed message

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 18 May 2010 13:23:01 +0800
From:	Steven Liu <lingjiujianke@...il.com>
To:	mpm@...enic.com, linux-kernel@...r.kernel.org
Subject: [PATCH] random: Check kmalloc return value and give the failed 
	message

Hi, Matt Mackall,

Check kmalloc return value and give the failed message

Signed-off-by: Liu Qi <lingjiujianke@...il.com>
---
 drivers/char/random.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 2fd3d39..d1bedeb 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -952,8 +952,11 @@ static void init_std_data(struct entropy_store *r)
    mix_pool_bytes(r, &now, sizeof(now));
    mix_pool_bytes(r, utsname(), sizeof(*(utsname())));
    /* Enable continuous test in fips mode */
-   if (fips_enabled)
+   if (fips_enabled){
        r->last_data = kmalloc(EXTRACT_SIZE, GFP_KERNEL);
+       if(r->last_data == NULL)
+           printk(KERN_ERR "kmalloc memory failed in %s \n", __func__);
+   }
 }

 static int rand_initialize(void)
--
1.7.1



Best regards
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/