diff options
Diffstat (limited to 'debian/patches/features/all/ethernet-microsoft/0025-net-mana-use-vmalloc_array-and-vcalloc.patch')
| -rw-r--r-- | debian/patches/features/all/ethernet-microsoft/0025-net-mana-use-vmalloc_array-and-vcalloc.patch | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/debian/patches/features/all/ethernet-microsoft/0025-net-mana-use-vmalloc_array-and-vcalloc.patch b/debian/patches/features/all/ethernet-microsoft/0025-net-mana-use-vmalloc_array-and-vcalloc.patch new file mode 100644 index 000000000..348583771 --- /dev/null +++ b/debian/patches/features/all/ethernet-microsoft/0025-net-mana-use-vmalloc_array-and-vcalloc.patch @@ -0,0 +1,75 @@ +From 4a202b0bfd1b2f3509361e5d3f6040f7af90c2ec Mon Sep 17 00:00:00 2001 +From: Julia Lawall <Julia.Lawall@inria.fr> +Date: Tue, 27 Jun 2023 16:43:37 +0200 +Subject: [PATCH 25/30] net: mana: use vmalloc_array and vcalloc + +Use vmalloc_array and vcalloc to protect against +multiplication overflows. + +The changes were done using the following Coccinelle +semantic patch: + +// <smpl> +@initialize:ocaml@ +@@ + +let rename alloc = + match alloc with + "vmalloc" -> "vmalloc_array" + | "vzalloc" -> "vcalloc" + | _ -> failwith "unknown" + +@@ + size_t e1,e2; + constant C1, C2; + expression E1, E2, COUNT, x1, x2, x3; + typedef u8; + typedef __u8; + type t = {u8,__u8,char,unsigned char}; + identifier alloc = {vmalloc,vzalloc}; + fresh identifier realloc = script:ocaml(alloc) { rename alloc }; +@@ + +( + alloc(x1*x2*x3) +| + alloc(C1 * C2) +| + alloc((sizeof(t)) * (COUNT), ...) +| +- alloc((e1) * (e2)) ++ realloc(e1, e2) +| +- alloc((e1) * (COUNT)) ++ realloc(COUNT, e1) +| +- alloc((E1) * (E2)) ++ realloc(E1, E2) +) +// </smpl> + +Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> +Link: https://lore.kernel.org/r/20230627144339.144478-23-Julia.Lawall@inria.fr +Signed-off-by: Jakub Kicinski <kuba@kernel.org> +(cherry picked from commit e9c74f8b8a31f77f8e9d7bbed5fc9f2eacbf32a5) +Signed-off-by: Bastian Blank <waldi@debian.org> +--- + drivers/net/ethernet/microsoft/mana/hw_channel.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/net/ethernet/microsoft/mana/hw_channel.c b/drivers/net/ethernet/microsoft/mana/hw_channel.c +index 9d1507eba5b9..2bd1d74021f7 100644 +--- a/drivers/net/ethernet/microsoft/mana/hw_channel.c ++++ b/drivers/net/ethernet/microsoft/mana/hw_channel.c +@@ -627,7 +627,7 @@ static int mana_hwc_establish_channel(struct gdma_context *gc, u16 *q_depth, + if (WARN_ON(cq->id >= gc->max_num_cqs)) + return -EPROTO; + +- gc->cq_table = vzalloc(gc->max_num_cqs * sizeof(struct gdma_queue *)); ++ gc->cq_table = vcalloc(gc->max_num_cqs, sizeof(struct gdma_queue *)); + if (!gc->cq_table) + return -ENOMEM; + +-- +2.40.1 + |