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| author | jkoshy <jkoshy@FreeBSD.org> | 2006-12-25 02:22:22 +0000 |
|---|---|---|
| committer | jkoshy <jkoshy@FreeBSD.org> | 2006-12-25 02:22:22 +0000 |
| commit | 26d8253ac6532abcb8d1c8d57743998f5368173b (patch) | |
| tree | 1f1c4db9c6b866adf56e5cc3eccd23baaa57af28 /lib/libelf/libelf_checksum.c | |
| parent | 44313eba34c379a180dc73dcd02ab9c415941db3 (diff) | |
| download | FreeBSD-src-26d8253ac6532abcb8d1c8d57743998f5368173b.zip FreeBSD-src-26d8253ac6532abcb8d1c8d57743998f5368173b.tar.gz | |
Keep shadow copies of the `e_shnum', `e_phnum' and `e_shstrndx'
members of the ELF Executable Header inside the library-private
`struct _Elf' descriptor and only update the underlying Elf{32,64}_Ehdr
structure on an elf_update(3) call. These fields of the Ehdr
structure are technically `out of bounds' for an application program
per the ELF(3) API, but we've seen applications that initialize
a new Ehdr structure using memcpy(), messing up the library's
invariants. [1]
Implement elf_getphnum() and handle ELF objects with more than
64K program header table entries.
Reported by: jb [1]
Diffstat (limited to 'lib/libelf/libelf_checksum.c')
| -rw-r--r-- | lib/libelf/libelf_checksum.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libelf/libelf_checksum.c b/lib/libelf/libelf_checksum.c index 3210412..c7eb8a0 100644 --- a/lib/libelf/libelf_checksum.c +++ b/lib/libelf/libelf_checksum.c @@ -76,7 +76,7 @@ _libelf_checksum(Elf *e, int elfclass) */ checksum = 0; - for (shn = 1; shn < eh.e_shnum; shn++) { + for (shn = 1; shn < e->e_u.e_elf.e_nscn; shn++) { if ((scn = elf_getscn(e, shn)) == NULL) return (0); if (gelf_getshdr(scn, &shdr) == NULL) |
