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BUG #19423: canonicalize_path does not function correctly when processing paths that contain . and .. 2+ messages / 2 participants [nested] [flat]
* BUG #19423: canonicalize_path does not function correctly when processing paths that contain . and .. @ 2026-03-03 07:27 PG Bug reporting form <noreply@postgresql.org> 0 siblings, 1 reply; 2+ messages in thread From: PG Bug reporting form @ 2026-03-03 07:27 UTC (permalink / raw) To: pgsql-bugs@lists.postgresql.org; +Cc: 1003931418@qq.com The following bug has been logged on the website: Bug reference: 19423 Logged by: SHIQI LI Email address: 1003931418@qq.com PostgreSQL version: 14.22 Operating system: linux Description: When the input parameter path of the function is /tmp/root_hack4_test_tablespace/./../../test, the expected result after processing by canonicalize_path is /test, but the actual result remains /tmp/root_hack4_test_tablespace/./../../test. The implementation of this function differs significantly between version 14, version 15, and later versions. ^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: BUG #19423: canonicalize_path does not function correctly when processing paths that contain . and .. @ 2026-03-03 14:28 Tom Lane <tgl@sss.pgh.pa.us> parent: PG Bug reporting form <noreply@postgresql.org> 0 siblings, 0 replies; 2+ messages in thread From: Tom Lane @ 2026-03-03 14:28 UTC (permalink / raw) To: 1003931418@qq.com; +Cc: pgsql-bugs@lists.postgresql.org PG Bug reporting form <noreply@postgresql.org> writes: > When the input parameter path of the function is > /tmp/root_hack4_test_tablespace/./../../test, the expected result after > processing by canonicalize_path is /test, but the actual result remains > /tmp/root_hack4_test_tablespace/./../../test. AFAICT it does what you're expecting in v15 and later. The previous implementation did not promise to clean up '.' and '..' everywhere; it only said * o remove trailing '.' * o process trailing '..' ourselves > The implementation of this function differs significantly between version > 14, version 15, and later versions. See commit c10f830c511f0ba3e6f4c9d99f444d39e30440c8, particularly the commit message's explanation of why not back-patch it. regards, tom lane ^ permalink raw reply [nested|flat] 2+ messages in thread
end of thread, other threads:[~2026-03-03 14:28 UTC | newest] Thread overview: 2+ messages (download: mbox mbox.gz follow: Atom feed) -- links below jump to the message on this page -- 2026-03-03 07:27 BUG #19423: canonicalize_path does not function correctly when processing paths that contain . and .. PG Bug reporting form <noreply@postgresql.org> 2026-03-03 14:28 ` Tom Lane <tgl@sss.pgh.pa.us>
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