| Message ID | 20170824081811.19299-3-takahiro.akashi@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 24 August 2017 at 09:17, AKASHI Takahiro <takahiro.akashi@linaro.org> wrote: > message[] field won't be part of the definition of mz header. > > This change is crucial for enabling kexec_file_load on arm64 because > arm64's "Image" binary, as in PE format, doesn't have any data for it and > accordingly the following check in pefile_parse_binary() will fail: > > chkaddr(cursor, mz->peaddr, sizeof(*pe)); > > Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> > Cc: David Howells <dhowells@redhat.com> > Cc: Vivek Goyal <vgoyal@redhat.com> > Cc: Herbert Xu <herbert@gondor.apana.org.au> > Cc: David S. Miller <davem@davemloft.net> > --- > include/linux/pe.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/include/linux/pe.h b/include/linux/pe.h > index 143ce75be5f0..3482b18a48b5 100644 > --- a/include/linux/pe.h > +++ b/include/linux/pe.h > @@ -166,7 +166,7 @@ struct mz_hdr { > uint16_t oem_info; /* oem specific */ > uint16_t reserved1[10]; /* reserved */ > uint32_t peaddr; /* address of pe header */ > - char message[64]; /* message to print */ > + char message[]; /* message to print */ > }; > > struct mz_reloc { Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
diff --git a/include/linux/pe.h b/include/linux/pe.h index 143ce75be5f0..3482b18a48b5 100644 --- a/include/linux/pe.h +++ b/include/linux/pe.h @@ -166,7 +166,7 @@ struct mz_hdr { uint16_t oem_info; /* oem specific */ uint16_t reserved1[10]; /* reserved */ uint32_t peaddr; /* address of pe header */ - char message[64]; /* message to print */ + char message[]; /* message to print */ }; struct mz_reloc {
message[] field won't be part of the definition of mz header. This change is crucial for enabling kexec_file_load on arm64 because arm64's "Image" binary, as in PE format, doesn't have any data for it and accordingly the following check in pefile_parse_binary() will fail: chkaddr(cursor, mz->peaddr, sizeof(*pe)); Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Cc: David Howells <dhowells@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: David S. Miller <davem@davemloft.net> --- include/linux/pe.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)