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| author | Nick Alcock <nick.alcock@oracle.com> | 2020-06-03 17:31:44 +0100 |
|---|---|---|
| committer | Nick Alcock <nick.alcock@oracle.com> | 2020-07-22 17:57:54 +0100 |
| commit | ec388c16cd4217a64907e4e133d2102cc4fe608a (patch) | |
| tree | b2843ad6885d24e75b5351487b008fe2598fa3d0 /libctf | |
| parent | 67d4cc671b7b3c49f748546a510005333fcbc465 (diff) | |
| download | gdb-ec388c16cd4217a64907e4e133d2102cc4fe608a.zip gdb-ec388c16cd4217a64907e4e133d2102cc4fe608a.tar.gz gdb-ec388c16cd4217a64907e4e133d2102cc4fe608a.tar.bz2 | |
libctf: error out on corrupt CTF with invalid header flags
If corrupt CTF with invalid header flags is passed in, return the new
error ECTF_FLAGS.
include/
* ctf-api.h (ECTF_FLAGS): New.
(ECTF_NERR): Adjust.
* ctf.h (CTF_F_MAX): New.
libctf/
* ctf-open.c (ctf_bufopen_internal): Diagnose invalid flags.
Diffstat (limited to 'libctf')
| -rw-r--r-- | libctf/ChangeLog | 4 | ||||
| -rw-r--r-- | libctf/ctf-open.c | 3 |
2 files changed, 7 insertions, 0 deletions
diff --git a/libctf/ChangeLog b/libctf/ChangeLog index 4a10f63..45caf21 100644 --- a/libctf/ChangeLog +++ b/libctf/ChangeLog @@ -1,5 +1,9 @@ 2020-07-22 Nick Alcock <nick.alcock@oracle.com> + * ctf-open.c (ctf_bufopen_internal): Diagnose invalid flags. + +2020-07-22 Nick Alcock <nick.alcock@oracle.com> + ctf-decls.h (ctf_qsort_compar_thunk): Fix arg passing. 2020-07-22 Nick Alcock <nick.alcock@oracle.com> diff --git a/libctf/ctf-open.c b/libctf/ctf-open.c index b7846bd..f8eeaab 100644 --- a/libctf/ctf-open.c +++ b/libctf/ctf-open.c @@ -1384,6 +1384,9 @@ ctf_bufopen_internal (const ctf_sect_t *ctfsect, const ctf_sect_t *symsect, if (pp->ctp_version < CTF_VERSION_3) hdrsz = sizeof (ctf_header_v2_t); + if (_libctf_unlikely_ (pp->ctp_flags > CTF_F_MAX)) + return (ctf_set_open_errno (errp, ECTF_FLAGS)); + if (ctfsect->cts_size < hdrsz) return (ctf_set_open_errno (errp, ECTF_NOCTFBUF)); |