From: Nicolas Bouchinet Date: Mon, 24 Feb 2025 09:58:20 +0000 (+0100) Subject: RDMA/core: Fixes infiniband sysctl bounds X-Git-Tag: v6.15-rc1~116^2~33 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f33cd9b3fd03a791296ab37550ffd26213a90c4e;p=thirdparty%2Fkernel%2Flinux.git RDMA/core: Fixes infiniband sysctl bounds Bound infiniband iwcm and ucma sysctl writings between SYSCTL_ZERO and SYSCTL_INT_MAX. The proc_handler has thus been updated to proc_dointvec_minmax. Signed-off-by: Nicolas Bouchinet Link: https://patch.msgid.link/20250224095826.16458-6-nicolas.bouchinet@clip-os.org Reviewed-by: Zhu Yanjun Reviewed-by: Joel Granados Signed-off-by: Leon Romanovsky --- diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c index 7e3a55349e107..f4486cbd8f45a 100644 --- a/drivers/infiniband/core/iwcm.c +++ b/drivers/infiniband/core/iwcm.c @@ -109,7 +109,9 @@ static struct ctl_table iwcm_ctl_table[] = { .data = &default_backlog, .maxlen = sizeof(default_backlog), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_dointvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_INT_MAX, }, }; diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index 02f1666f3cbab..6e700b9740331 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -69,7 +69,9 @@ static struct ctl_table ucma_ctl_table[] = { .data = &max_backlog, .maxlen = sizeof max_backlog, .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_dointvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_INT_MAX, }, };