| 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
| ||
|
Message-ID: <1262698715.4532.7.camel@wall-e> Date: Tue, 05 Jan 2010 14:38:35 +0100 From: Stefani Seibold <stefani@...bold.net> To: linux-kernel <linux-kernel@...r.kernel.org> Cc: Andrew Morton <akpm@...ux-foundation.org> Subject: [tip:urgent] fix kfifo_out_locked race bug This patch fix a wrong optimization in include/linux/kfifo.h which could cause a race in kfifo_out_locked. Please apply it to the 2.6.33-rc* tree. Signed-off-by: Stefani Seibold <stefani@...bold.net> --- kfifo.h | 7 ------- 1 file changed, 7 deletions(-) --- linux-2.6.33-rc2.orig/include/linux/kfifo.h 2009-12-27 23:37:04.921185257 +0100 +++ kfifo.h 2010-01-05 14:32:31.414316321 +0100 @@ -228,13 +228,6 @@ static inline __must_check unsigned int ret = kfifo_out(fifo, to, n); - /* - * optimization: if the FIFO is empty, set the indices to 0 - * so we don't wrap the next time - */ - if (kfifo_is_empty(fifo)) - kfifo_reset(fifo); - spin_unlock_irqrestore(lock, flags); return ret; -- 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/
Powered by blists - more mailing lists