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openjp2: Error out if failing to create Tier 1 handle. 

Previously when the handle failed to be created (e.g. when
opj_calloc returned NULL due to low memory), the code still
assumed that the t1 handle pointer was valid and dereferenced
NULL, causing a crash. After this commit OpenJPEG will instead
error out under this condition.

This fixes issue #1255.
This commit is contained in:
Sebastian Rasmussen 2020-06-23 02:18:19 +08:00
parent 25fb144c42
commit 93b9f7236c
1 changed files with 7 additions and 0 deletions
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7
src/lib/openjp2/t1.c
View File

@ -1658,6 +1658,13 @@ static void opj_t1_clbl_decode_processor(void* user_data, opj_tls_t* tls)
t1 = (opj_t1_t*) opj_tls_get(tls, OPJ_TLS_KEY_T1);
if (t1 == NULL) {
t1 = opj_t1_create(OPJ_FALSE);
if (t1 == NULL) {
opj_event_msg(job->p_manager, EVT_ERROR,
"Cannot allocate Tier 1 handle\n");
*(job->pret) = OPJ_FALSE;
opj_free(job);
return;
}
opj_tls_set(tls, OPJ_TLS_KEY_T1, t1, opj_t1_destroy_wrapper);
}
t1->mustuse_cblkdatabuffer = job->mustuse_cblkdatabuffer;