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| author | Andres Freund <andres@anarazel.de> | 2021-08-19 04:59:06 -0700 |
|---|---|---|
| committer | Andres Freund <andres@anarazel.de> | 2021-08-19 05:15:28 -0700 |
| commit | 18914f24ec6e704e81a5528cf09f3d54b23ef12b (patch) | |
| tree | b0bb5a6d7e73c6f88befad42456acce36382ed23 /src/backend/regex/regcomp.c | |
| parent | e1915646658def5dd87331ac77fb9d8d0abd763b (diff) | |
| download | postgresql-18914f24ec6e704e81a5528cf09f3d54b23ef12b.tar.gz postgresql-18914f24ec6e704e81a5528cf09f3d54b23ef12b.zip | |
Unset MyBEEntry, making elog.c's call to pgstat_get_my_query_id() safe.
Previously log messages late during shutdown could end up using either another
backend's PgBackendStatus (multi user) or segfault (single user) because
pgstat_get_my_query_id()'s check for !MyBEEntry didn't filter out use after
pgstat_beshutdown_hook().
This became a bug in 4f0b0966c86, but was a bit fishy before. But given
there's no known problematic cases before 14, it doesn't seem worth
backpatching further.
Also fixes a wrong filename in a comment, introduced in e1025044.
Reported-By: Andres Freund <andres@anarazel.de>
Reviewed-By: Julien Rouhaud <rjuju123@gmail.com>
Discussion: https://postgr.es/m/Julien Rouhaud <rjuju123@gmail.com>
Backpatch: 14-
Diffstat (limited to 'src/backend/regex/regcomp.c')
0 files changed, 0 insertions, 0 deletions