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Message-Id: <201001060023.o060Ns76078068@www262.sakura.ne.jp> Date: Wed, 06 Jan 2010 09:23:54 +0900 From: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp> To: linux-security-module@...r.kernel.org, jmorris@...ei.org Cc: serue@...ibm.com, sam@...ack.fr, kaber@...sh.net, zbr@...emap.net, nhorman@...driver.com, netdev@...r.kernel.org, netfilter-devel@...r.kernel.org, hadi@...erus.ca Subject: [PATCH] LSM: Update comment on security_sock_rcv_skb [PATCH] LSM: Update comment on security_sock_rcv_skb It is not permitted to do sleeping operation inside security_sock_rcv_skb(). Signed-off-by: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp> -- diff --git a/include/linux/security.h b/include/linux/security.h index 466cbad..3696ca3 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -978,6 +978,7 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts) * Check permissions on incoming network packets. This hook is distinct * from Netfilter's IP input hooks since it is the first time that the * incoming sk_buff @skb has been associated with a particular socket, @sk. + * Must not sleep inside this hook because some callers hold spinlocks. * @sk contains the sock (not socket) associated with the incoming sk_buff. * @skb contains the incoming network data. * @socket_getpeersec_stream: -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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