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authorLinus Torvalds <torvalds@linux-foundation.org>2018-06-12 18:28:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-12 18:28:00 -0700
commitb08fc5277aaa1d8ea15470d38bf36f19dfb0e125 (patch)
tree1910dc474cb1ede95581dd9faa81a3bebeded0dc /fs/nfsd
parent4597fcff07044d89c646d0c5d8b42cd976d966a1 (diff)
parent9d2a789c1db75d0f55b14fa57bec548d94332ad8 (diff)
downloadop-kernel-dev-b08fc5277aaa1d8ea15470d38bf36f19dfb0e125.zip
op-kernel-dev-b08fc5277aaa1d8ea15470d38bf36f19dfb0e125.tar.gz
Merge tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull more overflow updates from Kees Cook: "The rest of the overflow changes for v4.18-rc1. This includes the explicit overflow fixes from Silvio, further struct_size() conversions from Matthew, and a bug fix from Dan. But the bulk of it is the treewide conversions to use either the 2-factor argument allocators (e.g. kmalloc(a * b, ...) into kmalloc_array(a, b, ...) or the array_size() macros (e.g. vmalloc(a * b) into vmalloc(array_size(a, b)). Coccinelle was fighting me on several fronts, so I've done a bunch of manual whitespace updates in the patches as well. Summary: - Error path bug fix for overflow tests (Dan) - Additional struct_size() conversions (Matthew, Kees) - Explicitly reported overflow fixes (Silvio, Kees) - Add missing kvcalloc() function (Kees) - Treewide conversions of allocators to use either 2-factor argument variant when available, or array_size() and array3_size() as needed (Kees)" * tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (26 commits) treewide: Use array_size in f2fs_kvzalloc() treewide: Use array_size() in f2fs_kzalloc() treewide: Use array_size() in f2fs_kmalloc() treewide: Use array_size() in sock_kmalloc() treewide: Use array_size() in kvzalloc_node() treewide: Use array_size() in vzalloc_node() treewide: Use array_size() in vzalloc() treewide: Use array_size() in vmalloc() treewide: devm_kzalloc() -> devm_kcalloc() treewide: devm_kmalloc() -> devm_kmalloc_array() treewide: kvzalloc() -> kvcalloc() treewide: kvmalloc() -> kvmalloc_array() treewide: kzalloc_node() -> kcalloc_node() treewide: kzalloc() -> kcalloc() treewide: kmalloc() -> kmalloc_array() mm: Introduce kvcalloc() video: uvesafb: Fix integer overflow in allocation UBIFS: Fix potential integer overflow in allocation leds: Use struct_size() in allocation Convert intel uncore to struct_size ...
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/export.c5
-rw-r--r--fs/nfsd/nfs4recover.c5
-rw-r--r--fs/nfsd/nfs4state.c20
-rw-r--r--fs/nfsd/nfscache.c3
4 files changed, 20 insertions, 13 deletions
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 8ceb25a..a1143f7 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -404,8 +404,9 @@ fsloc_parse(char **mesg, char *buf, struct nfsd4_fs_locations *fsloc)
if (fsloc->locations_count == 0)
return 0;
- fsloc->locations = kzalloc(fsloc->locations_count
- * sizeof(struct nfsd4_fs_location), GFP_KERNEL);
+ fsloc->locations = kcalloc(fsloc->locations_count,
+ sizeof(struct nfsd4_fs_location),
+ GFP_KERNEL);
if (!fsloc->locations)
return -ENOMEM;
for (i=0; i < fsloc->locations_count; i++) {
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 66eaeb1..9c247fa1 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -510,8 +510,9 @@ nfs4_legacy_state_init(struct net *net)
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
int i;
- nn->reclaim_str_hashtbl = kmalloc(sizeof(struct list_head) *
- CLIENT_HASH_SIZE, GFP_KERNEL);
+ nn->reclaim_str_hashtbl = kmalloc_array(CLIENT_HASH_SIZE,
+ sizeof(struct list_head),
+ GFP_KERNEL);
if (!nn->reclaim_str_hashtbl)
return -ENOMEM;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 3b40d1b..8571414 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1807,8 +1807,9 @@ static struct nfs4_client *alloc_client(struct xdr_netobj name)
clp->cl_name.data = kmemdup(name.data, name.len, GFP_KERNEL);
if (clp->cl_name.data == NULL)
goto err_no_name;
- clp->cl_ownerstr_hashtbl = kmalloc(sizeof(struct list_head) *
- OWNER_HASH_SIZE, GFP_KERNEL);
+ clp->cl_ownerstr_hashtbl = kmalloc_array(OWNER_HASH_SIZE,
+ sizeof(struct list_head),
+ GFP_KERNEL);
if (!clp->cl_ownerstr_hashtbl)
goto err_no_hashtbl;
for (i = 0; i < OWNER_HASH_SIZE; i++)
@@ -7096,16 +7097,19 @@ static int nfs4_state_create_net(struct net *net)
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
int i;
- nn->conf_id_hashtbl = kmalloc(sizeof(struct list_head) *
- CLIENT_HASH_SIZE, GFP_KERNEL);
+ nn->conf_id_hashtbl = kmalloc_array(CLIENT_HASH_SIZE,
+ sizeof(struct list_head),
+ GFP_KERNEL);
if (!nn->conf_id_hashtbl)
goto err;
- nn->unconf_id_hashtbl = kmalloc(sizeof(struct list_head) *
- CLIENT_HASH_SIZE, GFP_KERNEL);
+ nn->unconf_id_hashtbl = kmalloc_array(CLIENT_HASH_SIZE,
+ sizeof(struct list_head),
+ GFP_KERNEL);
if (!nn->unconf_id_hashtbl)
goto err_unconf_id;
- nn->sessionid_hashtbl = kmalloc(sizeof(struct list_head) *
- SESSION_HASH_SIZE, GFP_KERNEL);
+ nn->sessionid_hashtbl = kmalloc_array(SESSION_HASH_SIZE,
+ sizeof(struct list_head),
+ GFP_KERNEL);
if (!nn->sessionid_hashtbl)
goto err_sessionid;
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index 637f87c..dbdeb9d 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -177,7 +177,8 @@ int nfsd_reply_cache_init(void)
drc_hashtbl = kcalloc(hashsize, sizeof(*drc_hashtbl), GFP_KERNEL);
if (!drc_hashtbl) {
- drc_hashtbl = vzalloc(hashsize * sizeof(*drc_hashtbl));
+ drc_hashtbl = vzalloc(array_size(hashsize,
+ sizeof(*drc_hashtbl)));
if (!drc_hashtbl)
goto out_nomem;
}
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