From: Sasha Levin Date: Tue, 3 Feb 2015 13:55:58 +0000 (-0500) Subject: net: rds: use correct size for max unacked packets and bytes X-Git-Tag: v2.6.32.66~27 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6246ff96da330928a3fef0da741827474f473a11;p=thirdparty%2Fkernel%2Fstable.git net: rds: use correct size for max unacked packets and bytes commit db27ebb111e9f69efece08e4cb6a34ff980f8896 upstream. Max unacked packets/bytes is an int while sizeof(long) was used in the sysctl table. This means that when they were getting read we'd also leak kernel memory to userspace along with the timeout values. Signed-off-by: Sasha Levin Signed-off-by: David S. Miller Signed-off-by: Ben Hutchings (cherry picked from commit 3760b67b3e419b9ac42a45417491360a14a35357) Signed-off-by: Willy Tarreau --- diff --git a/net/rds/sysctl.c b/net/rds/sysctl.c index 307dc5c1be153..870e808f1419c 100644 --- a/net/rds/sysctl.c +++ b/net/rds/sysctl.c @@ -74,7 +74,7 @@ static ctl_table rds_sysctl_rds_table[] = { .ctl_name = CTL_UNNUMBERED, .procname = "max_unacked_packets", .data = &rds_sysctl_max_unacked_packets, - .maxlen = sizeof(unsigned long), + .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec, }, @@ -82,7 +82,7 @@ static ctl_table rds_sysctl_rds_table[] = { .ctl_name = CTL_UNNUMBERED, .procname = "max_unacked_bytes", .data = &rds_sysctl_max_unacked_bytes, - .maxlen = sizeof(unsigned long), + .maxlen = sizeof(int), .mode = 0644, .proc_handler = &proc_dointvec, },