[binutils-gdb] Check corrupt VTENTRY entry in bfd_elf_gc_record_vtentry

H.J.Lu hjl@sourceware.org
Thu Apr 11 13:48:00 GMT 2019


https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a0ea3a14dc6a6062c0c1f2bfbb7ad0373ec20843

commit a0ea3a14dc6a6062c0c1f2bfbb7ad0373ec20843
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Thu Apr 11 06:44:53 2019 -0700

    Check corrupt VTENTRY entry in bfd_elf_gc_record_vtentry
    
    Instead of BFD_ASSERT (h != NULL) with
    
    ld: BFD ... assertion fail .../bfd/elf64-x86-64.c:2562
    ld: bad.o: invalid string offset 50331648 >= 371 for section `nterp'
    
    check corrupt VTENTRY entry in bfd_elf_gc_record_vtentry with
    
    ld: bad.o: section 'g': corrupt VTENTRY entry
    
    	* elf-m10300.c (mn10300_elf_check_relocs): Remove BFD_ASSERT of
    	"h != NULL".  Don't check "h != NULL" before calling.
    	bfd_elf_gc_record_vtentry.
    	* elf32-arm.c (elf32_arm_check_relocs): Likewise.
    	* elf32-bfin.c (bfin_check_relocs): Likewise.
    	* elf32-cris.c (cris_elf_check_relocs): Likewise.
    	* elf32-csky.c (csky_elf_check_relocs): Likewise.
    	* elf32-d10v.c (elf32_d10v_check_relocs): Likewise.
    	* elf32-dlx.c (elf32_dlx_check_relocs): Likewise.
    	* elf32-fr30.c (fr30_elf_check_relocs): Likewise.
    	* elf32-frv.c (elf32_frv_check_relocs): Likewise.
    	* elf32-hppa.c (elf32_hppa_check_relocs): Likewise.
    	* elf32-i386.c (elf_i386_check_relocs): Likewise.
    	* elf32-iq2000.c (iq2000_elf_check_relocs): Likewise.
    	* elf32-m32r.c (m32r_elf_check_relocs): Likewise.
    	* elf32-m68hc1x.c (elf32_m68hc11_check_relocs): Likewise.
    	* elf32-m68k.c (elf_m68k_check_relocs): Likewise.
    	* elf32-mcore.c (mcore_elf_check_relocs): Likewise.
    	* elf32-metag.c (elf_metag_check_relocs): Likewise.
    	* elf32-or1k.c (or1k_elf_check_relocs): Likewise.
    	* elf32-ppc.c (ppc_elf_check_relocs): Likewise.
    	* elf32-s390.c (elf_s390_check_relocs): Likewise.
    	* elf32-sh.c (sh_elf_check_relocs): Likewise.
    	* elf32-v850.c (v850_elf_check_relocs): Likewise.
    	* elf32-vax.c (elf_vax_check_relocs): Likewise.
    	* elf32-xstormy16.c (xstormy16_elf_check_relocs): Likewise.
    	* elf32-xtensa.c (elf_xtensa_check_relocs): Likewise.
    	* elf64-mmix.c (mmix_elf_check_relocs): Likewise.
    	* elf64-ppc.c (ppc64_elf_check_relocs): Likewise.
    	* elf64-s390.c (elf_s390_check_relocs): Likewise.
    	* elf64-x86-64.c (elf_s390_check_relocs): Likewise.
    	* elfxx-mips.c (_bfd_mips_elf_check_relocs): Likewise.
    	* elfxx-sparc.c (_bfd_sparc_elf_check_relocs): Likewise.
    	* elflink.c (bfd_elf_gc_record_vtinherit): Check for corrupt
    	VTENTRY entry.

Diff:
---
 bfd/ChangeLog         | 38 ++++++++++++++++++++++++++++++++++++++
 bfd/elf-m10300.c      |  4 +---
 bfd/elf32-arm.c       |  4 +---
 bfd/elf32-bfin.c      |  4 +---
 bfd/elf32-cris.c      |  4 +---
 bfd/elf32-csky.c      |  4 +---
 bfd/elf32-d10v.c      |  4 +---
 bfd/elf32-dlx.c       |  4 +---
 bfd/elf32-fr30.c      |  4 +---
 bfd/elf32-frv.c       |  4 +---
 bfd/elf32-hppa.c      |  4 +---
 bfd/elf32-i386.c      |  4 +---
 bfd/elf32-iq2000.c    |  4 +---
 bfd/elf32-m32r.c      |  8 ++------
 bfd/elf32-m68hc1x.c   |  4 +---
 bfd/elf32-m68k.c      |  4 +---
 bfd/elf32-mcore.c     |  4 +---
 bfd/elf32-metag.c     |  4 +---
 bfd/elf32-or1k.c      |  4 +---
 bfd/elf32-ppc.c       |  4 +---
 bfd/elf32-s390.c      |  4 +---
 bfd/elf32-sh.c        |  4 +---
 bfd/elf32-v850.c      |  4 +---
 bfd/elf32-vax.c       |  4 +---
 bfd/elf32-xstormy16.c |  4 +---
 bfd/elf32-xtensa.c    |  4 +---
 bfd/elf64-mmix.c      |  4 +---
 bfd/elf64-ppc.c       |  4 +---
 bfd/elf64-s390.c      |  4 +---
 bfd/elf64-x86-64.c    |  4 +---
 bfd/elflink.c         | 12 ++++++++++--
 bfd/elfxx-mips.c      |  4 +---
 bfd/elfxx-sparc.c     |  4 +---
 33 files changed, 80 insertions(+), 98 deletions(-)

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index a3cdfc6..4c42905 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,41 @@
+2019-04-11  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* elf-m10300.c (mn10300_elf_check_relocs): Remove BFD_ASSERT of
+	"h != NULL".  Don't check "h != NULL" before calling.
+	bfd_elf_gc_record_vtentry.
+	* elf32-arm.c (elf32_arm_check_relocs): Likewise.
+	* elf32-bfin.c (bfin_check_relocs): Likewise.
+	* elf32-cris.c (cris_elf_check_relocs): Likewise.
+	* elf32-csky.c (csky_elf_check_relocs): Likewise.
+	* elf32-d10v.c (elf32_d10v_check_relocs): Likewise.
+	* elf32-dlx.c (elf32_dlx_check_relocs): Likewise.
+	* elf32-fr30.c (fr30_elf_check_relocs): Likewise.
+	* elf32-frv.c (elf32_frv_check_relocs): Likewise.
+	* elf32-hppa.c (elf32_hppa_check_relocs): Likewise.
+	* elf32-i386.c (elf_i386_check_relocs): Likewise.
+	* elf32-iq2000.c (iq2000_elf_check_relocs): Likewise.
+	* elf32-m32r.c (m32r_elf_check_relocs): Likewise.
+	* elf32-m68hc1x.c (elf32_m68hc11_check_relocs): Likewise.
+	* elf32-m68k.c (elf_m68k_check_relocs): Likewise.
+	* elf32-mcore.c (mcore_elf_check_relocs): Likewise.
+	* elf32-metag.c (elf_metag_check_relocs): Likewise.
+	* elf32-or1k.c (or1k_elf_check_relocs): Likewise.
+	* elf32-ppc.c (ppc_elf_check_relocs): Likewise.
+	* elf32-s390.c (elf_s390_check_relocs): Likewise.
+	* elf32-sh.c (sh_elf_check_relocs): Likewise.
+	* elf32-v850.c (v850_elf_check_relocs): Likewise.
+	* elf32-vax.c (elf_vax_check_relocs): Likewise.
+	* elf32-xstormy16.c (xstormy16_elf_check_relocs): Likewise.
+	* elf32-xtensa.c (elf_xtensa_check_relocs): Likewise.
+	* elf64-mmix.c (mmix_elf_check_relocs): Likewise.
+	* elf64-ppc.c (ppc64_elf_check_relocs): Likewise.
+	* elf64-s390.c (elf_s390_check_relocs): Likewise.
+	* elf64-x86-64.c (elf_s390_check_relocs): Likewise.
+	* elfxx-mips.c (_bfd_mips_elf_check_relocs): Likewise.
+	* elfxx-sparc.c (_bfd_sparc_elf_check_relocs): Likewise.
+	* elflink.c (bfd_elf_gc_record_vtinherit): Check for corrupt
+	VTENTRY entry.
+
 2019-04-11  Alan Modra  <amodra@gmail.com>
 
 	PR 24435
diff --git a/bfd/elf-m10300.c b/bfd/elf-m10300.c
index 398636a..f0ef8eb 100644
--- a/bfd/elf-m10300.c
+++ b/bfd/elf-m10300.c
@@ -1136,9 +1136,7 @@ mn10300_elf_check_relocs (bfd *abfd,
 	/* This relocation describes which C++ vtable entries are actually
 	   used.  Record for later use during GC.  */
 	case R_MN10300_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    goto fail;
 	  break;
 
diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c
index b5b2dab..03f3a59 100644
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -15380,9 +15380,7 @@ elf32_arm_check_relocs (bfd *abfd, struct bfd_link_info *info,
 	/* This relocation describes which C++ vtable entries are actually
 	   used.  Record for later use during GC.  */
 	case R_ARM_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
 	    return FALSE;
 	  break;
 	}
diff --git a/bfd/elf32-bfin.c b/bfd/elf32-bfin.c
index 2e4751f..db052a1 100644
--- a/bfd/elf32-bfin.c
+++ b/bfd/elf32-bfin.c
@@ -1210,9 +1210,7 @@ bfin_check_relocs (bfd * abfd,
 	/* This relocation describes which C++ vtable entries
 	   are actually used.  Record for later use during GC.  */
 	case R_BFIN_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf32-cris.c b/bfd/elf32-cris.c
index 520b61a..595c36b 100644
--- a/bfd/elf32-cris.c
+++ b/bfd/elf32-cris.c
@@ -3485,9 +3485,7 @@ cris_elf_check_relocs (bfd *abfd,
 	/* This relocation describes which C++ vtable entries are actually
 	   used.  Record for later use during GC.  */
 	case R_CRIS_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf32-csky.c b/bfd/elf32-csky.c
index fb380b1..b3451b6 100644
--- a/bfd/elf32-csky.c
+++ b/bfd/elf32-csky.c
@@ -2873,9 +2873,7 @@ csky_elf_check_relocs (bfd * abfd,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_CKCORE_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 	}
diff --git a/bfd/elf32-d10v.c b/bfd/elf32-d10v.c
index 0c05106..4cd0aec 100644
--- a/bfd/elf32-d10v.c
+++ b/bfd/elf32-d10v.c
@@ -308,9 +308,7 @@ elf32_d10v_check_relocs (bfd *abfd,
 	/* This relocation describes which C++ vtable entries are actually
 	   used.  Record for later use during GC.  */
 	case R_D10V_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
 	    return FALSE;
 	  break;
 	}
diff --git a/bfd/elf32-dlx.c b/bfd/elf32-dlx.c
index f66e944..edddcb1 100644
--- a/bfd/elf32-dlx.c
+++ b/bfd/elf32-dlx.c
@@ -465,9 +465,7 @@ elf32_dlx_check_relocs (bfd *abfd,
 	/* This relocation describes which C++ vtable entries are actually
 	   used.  Record for later use during GC.  */
 	case R_DLX_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 	}
diff --git a/bfd/elf32-fr30.c b/bfd/elf32-fr30.c
index 3a0c3ae..6a13767 100644
--- a/bfd/elf32-fr30.c
+++ b/bfd/elf32-fr30.c
@@ -687,9 +687,7 @@ fr30_elf_check_relocs (bfd *abfd,
 	/* This relocation describes which C++ vtable entries are actually
 	   used.  Record for later use during GC.  */
 	case R_FR30_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 	}
diff --git a/bfd/elf32-frv.c b/bfd/elf32-frv.c
index ebc101e..8c6a97d 100644
--- a/bfd/elf32-frv.c
+++ b/bfd/elf32-frv.c
@@ -6237,9 +6237,7 @@ elf32_frv_check_relocs (bfd *abfd,
 	/* This relocation describes which C++ vtable entries are actually
 	   used.  Record for later use during GC.  */
 	case R_FRV_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf32-hppa.c b/bfd/elf32-hppa.c
index 95b729a..a61adbc 100644
--- a/bfd/elf32-hppa.c
+++ b/bfd/elf32-hppa.c
@@ -1273,9 +1273,7 @@ elf32_hppa_check_relocs (bfd *abfd,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_PARISC_GNU_VTENTRY:
-	  BFD_ASSERT (hh != NULL);
-	  if (hh != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
 	    return FALSE;
 	  continue;
 
diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c
index 5d3f2eb..d2ea5a7 100644
--- a/bfd/elf32-i386.c
+++ b/bfd/elf32-i386.c
@@ -1908,9 +1908,7 @@ do_size:
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_386_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
 	    goto error_return;
 	  break;
 
diff --git a/bfd/elf32-iq2000.c b/bfd/elf32-iq2000.c
index 0961226..6e47027 100644
--- a/bfd/elf32-iq2000.c
+++ b/bfd/elf32-iq2000.c
@@ -501,9 +501,7 @@ iq2000_elf_check_relocs (bfd *abfd,
 	  /* This relocation describes which C++ vtable entries
 	     are actually used.  Record for later use during GC.  */
 	case R_IQ2000_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf32-m32r.c b/bfd/elf32-m32r.c
index 92ed2d1..8f05a5e 100644
--- a/bfd/elf32-m32r.c
+++ b/bfd/elf32-m32r.c
@@ -3807,15 +3807,11 @@ m32r_elf_check_relocs (bfd *abfd,
 	/* This relocation describes which C++ vtable entries are actually
 	   used.  Record for later use during GC.  */
 	case R_M32R_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
 	    return FALSE;
 	  break;
 	case R_M32R_RELA_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 	}
diff --git a/bfd/elf32-m68hc1x.c b/bfd/elf32-m68hc1x.c
index 7a01749..6a99678 100644
--- a/bfd/elf32-m68hc1x.c
+++ b/bfd/elf32-m68hc1x.c
@@ -890,9 +890,7 @@ elf32_m68hc11_check_relocs (bfd *abfd, struct bfd_link_info *info,
 	/* This relocation describes which C++ vtable entries are actually
 	   used.  Record for later use during GC.  */
 	case R_M68HC11_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 	}
diff --git a/bfd/elf32-m68k.c b/bfd/elf32-m68k.c
index 8d0eab0..0fe5466 100644
--- a/bfd/elf32-m68k.c
+++ b/bfd/elf32-m68k.c
@@ -2801,9 +2801,7 @@ elf_m68k_check_relocs (bfd *abfd,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_68K_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf32-mcore.c b/bfd/elf32-mcore.c
index 764623c..7bca458 100644
--- a/bfd/elf32-mcore.c
+++ b/bfd/elf32-mcore.c
@@ -628,9 +628,7 @@ mcore_elf_check_relocs (bfd * abfd,
 	/* This relocation describes which C++ vtable entries are actually
 	   used.  Record for later use during GC.  */
 	case R_MCORE_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 	}
diff --git a/bfd/elf32-metag.c b/bfd/elf32-metag.c
index 6d48c8c..f68f9dc 100644
--- a/bfd/elf32-metag.c
+++ b/bfd/elf32-metag.c
@@ -2374,9 +2374,7 @@ elf_metag_check_relocs (bfd *abfd,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_METAG_GNU_VTENTRY:
-	  BFD_ASSERT (hh != NULL);
-	  if (hh != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rel->r_addend))
 	    return FALSE;
 	  break;
 	}
diff --git a/bfd/elf32-or1k.c b/bfd/elf32-or1k.c
index 2f200b1..c1bbac9 100644
--- a/bfd/elf32-or1k.c
+++ b/bfd/elf32-or1k.c
@@ -1927,9 +1927,7 @@ or1k_elf_check_relocs (bfd *abfd,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_OR1K_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c
index 6991e8d..e73539a 100644
--- a/bfd/elf32-ppc.c
+++ b/bfd/elf32-ppc.c
@@ -3316,9 +3316,7 @@ ppc_elf_check_relocs (bfd *abfd,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_PPC_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf32-s390.c b/bfd/elf32-s390.c
index 49a301f..7bdccdb 100644
--- a/bfd/elf32-s390.c
+++ b/bfd/elf32-s390.c
@@ -1366,9 +1366,7 @@ elf_s390_check_relocs (bfd *abfd,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_390_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf32-sh.c b/bfd/elf32-sh.c
index d66ac12..91900b8 100644
--- a/bfd/elf32-sh.c
+++ b/bfd/elf32-sh.c
@@ -5570,9 +5570,7 @@ sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_SH_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf32-v850.c b/bfd/elf32-v850.c
index 0de095d..90a18d3 100644
--- a/bfd/elf32-v850.c
+++ b/bfd/elf32-v850.c
@@ -101,9 +101,7 @@ v850_elf_check_relocs (bfd *abfd,
 	/* This relocation describes which C++ vtable entries
 	   are actually used.  Record for later use during GC.  */
 	case R_V850_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf32-vax.c b/bfd/elf32-vax.c
index 10c01a9..2af7050 100644
--- a/bfd/elf32-vax.c
+++ b/bfd/elf32-vax.c
@@ -783,9 +783,7 @@ elf_vax_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_VAX_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf32-xstormy16.c b/bfd/elf32-xstormy16.c
index a64513d..05a9326 100644
--- a/bfd/elf32-xstormy16.c
+++ b/bfd/elf32-xstormy16.c
@@ -513,9 +513,7 @@ xstormy16_elf_check_relocs (bfd *abfd,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_XSTORMY16_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 	}
diff --git a/bfd/elf32-xtensa.c b/bfd/elf32-xtensa.c
index 37ea200..09625e6 100644
--- a/bfd/elf32-xtensa.c
+++ b/bfd/elf32-xtensa.c
@@ -1102,9 +1102,7 @@ elf_xtensa_check_relocs (bfd *abfd,
 	case R_XTENSA_GNU_VTENTRY:
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  continue;
 
diff --git a/bfd/elf64-mmix.c b/bfd/elf64-mmix.c
index d332151..839bd45 100644
--- a/bfd/elf64-mmix.c
+++ b/bfd/elf64-mmix.c
@@ -2004,9 +2004,7 @@ mmix_elf_check_relocs (bfd *abfd,
 	/* This relocation describes which C++ vtable entries are actually
 	   used.  Record for later use during GC.  */
 	case R_MMIX_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 	}
diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c
index 5be3fe0..a795ad1 100644
--- a/bfd/elf64-ppc.c
+++ b/bfd/elf64-ppc.c
@@ -4555,9 +4555,7 @@ ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_PPC64_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf64-s390.c b/bfd/elf64-s390.c
index 3879676..6bc6dfd 100644
--- a/bfd/elf64-s390.c
+++ b/bfd/elf64-s390.c
@@ -1301,9 +1301,7 @@ elf_s390_check_relocs (bfd *abfd,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_390_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c
index 6790228..27e23a0 100644
--- a/bfd/elf64-x86-64.c
+++ b/bfd/elf64-x86-64.c
@@ -2373,9 +2373,7 @@ do_size:
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_X86_64_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    goto error_return;
 	  break;
 
diff --git a/bfd/elflink.c b/bfd/elflink.c
index 8aae980..81e667d 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -13727,14 +13727,22 @@ bfd_elf_gc_record_vtinherit (bfd *abfd,
 /* Called from check_relocs to record the existence of a VTENTRY reloc.  */
 
 bfd_boolean
-bfd_elf_gc_record_vtentry (bfd *abfd ATTRIBUTE_UNUSED,
-			   asection *sec ATTRIBUTE_UNUSED,
+bfd_elf_gc_record_vtentry (bfd *abfd, asection *sec,
 			   struct elf_link_hash_entry *h,
 			   bfd_vma addend)
 {
   const struct elf_backend_data *bed = get_elf_backend_data (abfd);
   unsigned int log_file_align = bed->s->log_file_align;
 
+  if (!h)
+    {
+      /* xgettext:c-format */
+      _bfd_error_handler (_("%pB: section '%pA': corrupt VTENTRY entry"),
+			  abfd, sec);
+      bfd_set_error (bfd_error_bad_value);
+      return FALSE;
+    }
+
   if (!h->u2.vtable)
     {
       h->u2.vtable = ((struct elf_link_virtual_table_entry *)
diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c
index 5998bc4..74dadf4 100644
--- a/bfd/elfxx-mips.c
+++ b/bfd/elfxx-mips.c
@@ -8992,9 +8992,7 @@ _bfd_mips_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 	  /* This relocation describes which C++ vtable entries are actually
 	     used.  Record for later use during GC.  */
 	case R_MIPS_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
 	    return FALSE;
 	  break;
 
diff --git a/bfd/elfxx-sparc.c b/bfd/elfxx-sparc.c
index f09dcbd..e479884 100644
--- a/bfd/elfxx-sparc.c
+++ b/bfd/elfxx-sparc.c
@@ -1837,9 +1837,7 @@ _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 	  break;
 
 	case R_SPARC_GNU_VTENTRY:
-	  BFD_ASSERT (h != NULL);
-	  if (h != NULL
-	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
 	    return FALSE;
 	  break;



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