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| author | Nick Clifton <nickc@redhat.com> | 2019-02-11 16:15:59 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2019-02-11 16:15:59 +0000 |
| commit | c6f021093dbd26b4d8e761e9a19af817e9f2561f (patch) | |
| tree | 9fb99884795b3bf34e9f72705b134ed75f281ceb | |
| parent | c6af0afb3616c2ce5ba2950d17532c6744617c2a (diff) | |
| download | fsf-binutils-gdb-c6f021093dbd26b4d8e761e9a19af817e9f2561f.zip fsf-binutils-gdb-c6f021093dbd26b4d8e761e9a19af817e9f2561f.tar.gz fsf-binutils-gdb-c6f021093dbd26b4d8e761e9a19af817e9f2561f.tar.bz2 | |
Fix a NULL pointer dereference in nm, when parsing a corrupt file.
PR 24168
* nm.c (print_symbol): Check for NULL contents of the sym_ptr_ptr
field.
| -rw-r--r-- | binutils/ChangeLog | 6 | ||||
| -rw-r--r-- | binutils/nm.c | 3 |
2 files changed, 9 insertions, 0 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog index 0eba844..ad4f226 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,3 +1,9 @@ +2019-02-11 Nick Clifton <nickc@redhat.com> + + PR 24168 + * nm.c (print_symbol): Check for NULL contents of the sym_ptr_ptr + field. + 2018-03-19 H.J. Lu <hongjiu.lu@intel.com> Backport from master branch diff --git a/binutils/nm.c b/binutils/nm.c index e46fffc..afaea56 100644 --- a/binutils/nm.c +++ b/binutils/nm.c @@ -976,6 +976,7 @@ print_symbol (bfd * abfd, } symname = bfd_asymbol_name (sym); + for (i = 0; i < seccount; i++) { long j; @@ -985,7 +986,9 @@ print_symbol (bfd * abfd, arelent *r; r = relocs[i][j]; + if (r->sym_ptr_ptr != NULL + && * r->sym_ptr_ptr != NULL && (*r->sym_ptr_ptr)->section == sym->section && (*r->sym_ptr_ptr)->value == sym->value && strcmp (symname, |