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zdump: read_elf_phdrs: handle no program header case

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Handle the case where no program headers are defined (see `man 5 elf`).

Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Marc Hartmayer
2022-03-22 14:18:45 +01:00
committed by Jan Höppner
parent 8944c2f60d
commit 09c413b1be
1 changed files with 5 additions and 0 deletions
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5
zdump/df_elf.c
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@@ -69,6 +69,11 @@ Elf64_Phdr *read_elf_phdrs(const struct zg_fh *fh, const Elf64_Ehdr *ehdr, unsig
size_t phdrs_size;
Elf64_Phdr *phdrs;
if (!phnum) {
*phdr_count = phnum;
return NULL;
}
/* Cannot wraparound since `Elf64_Half`` is `uint16_t` */
phdrs_size = sizeof(*phdrs) * phnum;
phdrs = util_malloc(phdrs_size);