diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2025-02-18 21:23:59 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2025-02-18 21:23:59 -0500 |
| commit | 7edd2cbc535cc093abc84ccc5764d794609e1473 (patch) | |
| tree | 066b76a80dc042caf4271e27255d185bef7c19d8 /src/backend/snowball/libstemmer/api.c | |
| parent | 49a450892a3e65619287c099d4b2493ae61aea9b (diff) | |
Avoid null pointer dereference crash after OOM in Snowball stemmers.
Absorb upstream bug fix (their commit
e322673a841d9abd69994ae8cd20e191090b6ef4), which prevents a null
pointer dereference crash if SN_create_env() gets a malloc failure
at just the wrong point.
Thanks to Maksim Korotkov for discovering the null-pointer
bug and submitting the fix to upstream snowball.
Reported-by: Maksim Korotkov <m.korotkov@postgrespro.ru>
Author: Maksim Korotkov <m.korotkov@postgrespro.ru>
Discussion: https://postgr.es/m/1d1a46-67ab1000-21-80c451@83151435
Backpatch-through: 13
Diffstat (limited to 'src/backend/snowball/libstemmer/api.c')
| -rw-r--r-- | src/backend/snowball/libstemmer/api.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/snowball/libstemmer/api.c b/src/backend/snowball/libstemmer/api.c index 375938e6d13..358f5633b28 100644 --- a/src/backend/snowball/libstemmer/api.c +++ b/src/backend/snowball/libstemmer/api.c @@ -34,7 +34,7 @@ error: extern void SN_close_env(struct SN_env * z, int S_size) { if (z == NULL) return; - if (S_size) + if (z->S) { int i; for (i = 0; i < S_size; i++) |