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| author | Alan Modra <amodra@gmail.com> | 2018-03-17 17:49:12 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2018-03-21 21:42:17 +1030 |
| commit | 675e28092f9d92c56c38d40d13ad5b766bdede05 (patch) | |
| tree | 50e41146bc1489f10fc2e676b24beba579bc3fe3 | |
| parent | dca9fbc845f297db70dcb2202624b1497df5593c (diff) | |
| download | gdb-675e28092f9d92c56c38d40d13ad5b766bdede05.zip gdb-675e28092f9d92c56c38d40d13ad5b766bdede05.tar.gz gdb-675e28092f9d92c56c38d40d13ad5b766bdede05.tar.bz2 | |
Don't exceed reloc array bounds
* elf64-ppc.c (ppc64_elf_relocate_section): Don't access rel[1]
without first checking array bounds.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/elf32-ppc.c | 6 | ||||
| -rw-r--r-- | bfd/elf64-ppc.c | 6 |
3 files changed, 14 insertions, 4 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 1850d20..6846481 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2018-03-21 Alan Modra <amodra@gmail.com> + + * elf64-ppc.c (ppc64_elf_relocate_section): Don't access rel[1] + without first checking array bounds. + * elf32-ppc.c (ppc_elf_relocate_section): Likewise. + 2018-03-20 H.J. Lu <hongjiu.lu@intel.com> PR ld/22983 diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c index 66bbf0d..182dc2a 100644 --- a/bfd/elf32-ppc.c +++ b/bfd/elf32-ppc.c @@ -8000,7 +8000,8 @@ ppc_elf_relocate_section (bfd *output_bfd, break; case R_PPC_TLSGD: - if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) + if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0 + && rel + 1 < relend) { unsigned int insn2; bfd_vma offset = rel->r_offset; @@ -8027,7 +8028,8 @@ ppc_elf_relocate_section (bfd *output_bfd, break; case R_PPC_TLSLD: - if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) + if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0 + && rel + 1 < relend) { unsigned int insn2; diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c index 889bdb0..7155aeb 100644 --- a/bfd/elf64-ppc.c +++ b/bfd/elf64-ppc.c @@ -13897,7 +13897,8 @@ ppc64_elf_relocate_section (bfd *output_bfd, break; case R_PPC64_TLSGD: - if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) + if (tls_mask != 0 && (tls_mask & TLS_GD) == 0 + && rel + 1 < relend) { unsigned int insn2; bfd_vma offset = rel->r_offset; @@ -13931,7 +13932,8 @@ ppc64_elf_relocate_section (bfd *output_bfd, break; case R_PPC64_TLSLD: - if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) + if (tls_mask != 0 && (tls_mask & TLS_LD) == 0 + && rel + 1 < relend) { unsigned int insn2; bfd_vma offset = rel->r_offset; |