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fa87c54693
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/20230627144339.144478-19-Julia.Lawall@inria.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
||
|---|---|---|
| .. | ||
| enetc_cbdr.c | ||
| enetc_ethtool.c | ||
| enetc_hw.h | ||
| enetc_ierb.c | ||
| enetc_ierb.h | ||
| enetc_mdio.c | ||
| enetc_msg.c | ||
| enetc_pci_mdio.c | ||
| enetc_pf.c | ||
| enetc_pf.h | ||
| enetc_ptp.c | ||
| enetc_qos.c | ||
| enetc_vf.c | ||
| enetc.c | ||
| enetc.h | ||
| Kconfig | ||
| Makefile | ||