diff options
| author | Frank Mehnert <frank.mehnert@kernkonzept.com> | 2024-02-20 08:32:20 +0100 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2024-02-20 19:37:18 +0100 |
| commit | 8fa5437044b7ebc6971f987644d48507e0fbc5f9 (patch) | |
| tree | 32d314d45ab1a7b28a31ba831c3ca4526ad5b16a | |
| parent | 0ab4d9d49d97cba0fc43f7c159e377b16179c821 (diff) | |
ldso: add null-pointer check
There is a check for (*rpnt == NULL) a few lines above but the "else"
case performing an allocation does only exist if SHARED is not defined.
If SHARED is defined, the allocation is not performed and it may happen
(at least in theory) that *rpnt == NULL when executing
(*rpnt)->dyn = tpnt;
Add the null-pointer check.
Signed-off-by: Frank Mehnert <frank.mehnert@kernkonzept.com>
| -rw-r--r-- | ldso/ldso/dl-elf.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/ldso/ldso/dl-elf.c b/ldso/ldso/dl-elf.c index ac6db59e0..4f50d62b7 100644 --- a/ldso/ldso/dl-elf.c +++ b/ldso/ldso/dl-elf.c @@ -900,7 +900,8 @@ struct elf_resolve *_dl_load_elf_shared_library(unsigned int rflags, _dl_memset(*rpnt, 0, sizeof(struct dyn_elf)); } #endif - (*rpnt)->dyn = tpnt; + if (*rpnt) + (*rpnt)->dyn = tpnt; tpnt->usage_count++; if (tpnt->rtld_flags & RTLD_NODELETE) tpnt->usage_count++; |