On Sat, Feb 21, 2026 at 08:13:24PM -0800, Eric Biggers wrote:
> On Wed, Dec 03, 2025 at 03:30:35PM -0800, Kees Cook wrote:
> > Finds and converts sized kmalloc-family of allocations into the
> > typed kmalloc_obj-family of allocations.
> > 
> > Signed-off-by: Kees Cook <[email protected]>
> > ---
> > Cc: Julia Lawall <[email protected]>
> > Cc: Nicolas Palix <[email protected]>
> > Cc: [email protected]
> > ---
> >  scripts/coccinelle/api/kmalloc_objs.cocci | 109 ++++++++++++++++++++++
> >  1 file changed, 109 insertions(+)
> >  create mode 100644 scripts/coccinelle/api/kmalloc_objs.cocci
> 
> Is there a way to reproduce commit 69050f8d6d075dc using this semantic
> patch as claimed?  I spend a while installing the latest version of
> spatch (which was quite hard to do due to all the unusual dependencies),
> but it complains that no rules apply:
> 
> $ /usr/local/bin/spatch --sp-file scripts/coccinelle/api/kmalloc_objs.cocci 
> --dir . --in-place
> init_defs_builtins: /usr/local/lib/coccinelle/standard.h
> SPECIAL NAMES: adding u8 as a type
> SPECIAL NAMES: adding u16 as a type
> SPECIAL NAMES: adding u32 as a type
> SPECIAL NAMES: adding u64 as a type
> SPECIAL NAMES: adding __u8 as a type
> SPECIAL NAMES: adding __u16 as a type
> SPECIAL NAMES: adding __u32 as a type
> SPECIAL NAMES: adding __u64 as a type
> SPECIAL NAMES: adding uint8_t as a type
> SPECIAL NAMES: adding uint16_t as a type
> SPECIAL NAMES: adding uint32_t as a type
> SPECIAL NAMES: adding uint64_t as a type
> SPECIAL NAMES: adding uchar as a type
> SPECIAL NAMES: adding ushort as a type
> SPECIAL NAMES: adding uint as a type
> SPECIAL NAMES: adding ulong as a type
> SPECIAL NAMES: adding __le16 as a type
> SPECIAL NAMES: adding __le32 as a type
> SPECIAL NAMES: adding __le64 as a type
> SPECIAL NAMES: adding __be16 as a type
> SPECIAL NAMES: adding __be32 as a type
> SPECIAL NAMES: adding __be64 as a type
> SPECIAL NAMES: adding wchar_t as a type
> No rules apply.  Perhaps your semantic patch doesn't contain any +/-/* code, 
> or you have a failed dependency.  If the problem is not clear, try 
> --debug-parse-cocci or check whether any virtual rules (e.g., patch) should 
> be defined.

I'm running:

$ spatch --version
spatch version 1.1.1-00467-g578998d7826c compiled with OCaml version 4.13.1

Running Coccinelle scripts is normally done with the coccicheck target:

$ make coccicheck V=1 MODE=patch COCCI=scripts/coccinelle/api/kmalloc_objs.cocci

-Kees

-- 
Kees Cook

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