diff options
| author | Ian Campbell <ian.campbell@xensource.com> | 2007-03-16 14:41:24 +0000 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2007-03-19 13:38:50 +0900 |
| commit | efac1da616a211517a4b0eaae098db6ade3bdd26 (patch) | |
| tree | da887a32bc268ed379e891d37581990c80a64146 /kexec/kexec-elf.c | |
| parent | 78cd98999c9e00c2fe3347d4664c5bdc8dd91497 (diff) | |
Ignore PT_NOTE program headers with offset 0.
There is a binutils bug which causes PT_NOTE segments to have an offset of
zero (http://sourceware.org/bugzilla/show_bug.cgi?id=594). The fix has not
made it into any release binutils, although several distributions have
backported it.
Signed-off-by: Ian Campbell <ian.campbell@xensource.com>
Acked-by: Magnus Damm <magnus@valinux.co.jp>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'kexec/kexec-elf.c')
| -rw-r--r-- | kexec/kexec-elf.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/kexec/kexec-elf.c b/kexec/kexec-elf.c index 63f5b4c..a930485 100644 --- a/kexec/kexec-elf.c +++ b/kexec/kexec-elf.c @@ -676,7 +676,14 @@ static int build_mem_notes(const char *buf, off_t len, struct mem_ehdr *ehdr) note_start = note_end = NULL; for(i = 0; !note_start && (i < ehdr->e_phnum); i++) { struct mem_phdr *phdr = &ehdr->e_phdr[i]; - if (phdr->p_type == PT_NOTE) { + /* + * binutils <= 2.17 has a bug where it can create the + * PT_NOTE segment with an offset of 0. Therefore + * check p_offset > 0. + * + * See: http://sourceware.org/bugzilla/show_bug.cgi?id=594 + */ + if (phdr->p_type == PT_NOTE && phdr->p_offset) { note_start = (unsigned char *)phdr->p_data; note_end = note_start + phdr->p_filesz; } |