On Wed, Nov 07, 2007 at 07:51:57AM +1100, James Morris wrote: > > ---------- Forwarded message ---------- > Date: Tue, 06 Nov 2007 14:53:30 +0100 > From: Vicenç <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > Subject: Possible BUG on net/ipv4/ipcomp.c, line 358 > > Hi James, > > I think there is a bug on net/ipv4/ipcomp.c line 358. The trivial patch that > should fix it is:
Thanks for the report! The same bug exists in IPv6 too and this patch should fix both. [IPSEC]: Fix crypto_alloc_comp error checking The function crypto_alloc_comp returns an errno instead of NULL to indicate error. So it needs to be tested with IS_ERR. This is based on a patch by Vicenç Beltran Querol. Signed-off-by: Herbert Xu <[EMAIL PROTECTED]> Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <[EMAIL PROTECTED]> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c index ca1b5fd..2c44a94 100644 --- a/net/ipv4/ipcomp.c +++ b/net/ipv4/ipcomp.c @@ -16,6 +16,7 @@ #include <linux/module.h> #include <asm/semaphore.h> #include <linux/crypto.h> +#include <linux/err.h> #include <linux/pfkeyv2.h> #include <linux/percpu.h> #include <linux/smp.h> @@ -344,7 +345,7 @@ static struct crypto_comp **ipcomp_alloc_tfms(const char *alg_name) for_each_possible_cpu(cpu) { struct crypto_comp *tfm = crypto_alloc_comp(alg_name, 0, CRYPTO_ALG_ASYNC); - if (!tfm) + if (IS_ERR(tfm)) goto error; *per_cpu_ptr(tfms, cpu) = tfm; } diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c index 85eb479..0cd4056 100644 --- a/net/ipv6/ipcomp6.c +++ b/net/ipv6/ipcomp6.c @@ -36,6 +36,7 @@ #include <net/ipcomp.h> #include <asm/semaphore.h> #include <linux/crypto.h> +#include <linux/err.h> #include <linux/pfkeyv2.h> #include <linux/random.h> #include <linux/percpu.h> @@ -358,7 +359,7 @@ static struct crypto_comp **ipcomp6_alloc_tfms(const char *alg_name) for_each_possible_cpu(cpu) { struct crypto_comp *tfm = crypto_alloc_comp(alg_name, 0, CRYPTO_ALG_ASYNC); - if (!tfm) + if (IS_ERR(tfm)) goto error; *per_cpu_ptr(tfms, cpu) = tfm; } - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
