Have a look: jot 1000 | sort -R | head Happens on -CURRENT since d053fb22f6d3b6bb0f4e47e4507fefc20cbe0e32.
A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=e9bfb50d5e7aa5d673a5a35318820320c4190d33 commit e9bfb50d5e7aa5d673a5a35318820320c4190d33 Author: Mark Johnston <markj@FreeBSD.org> AuthorDate: 2021-10-29 18:25:42 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2021-10-29 18:29:50 +0000 sort: Fix random sort bwsrawdata() is supposed to return the string buffer. PR: 259451 Reported by: sigsys@gmail.com Fixes: d053fb22f6d3 ("usr.bin/sort: Avoid UBSan errors") MFC after: 3 days Sponsored by: The FreeBSD Foundation usr.bin/sort/bwstring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
A commit in branch stable/13 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=946a297fbd9a01a433f2cfb5fa0ae86df07ee593 commit 946a297fbd9a01a433f2cfb5fa0ae86df07ee593 Author: Mark Johnston <markj@FreeBSD.org> AuthorDate: 2021-10-29 18:25:42 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2021-11-01 13:10:54 +0000 sort: Fix random sort bwsrawdata() is supposed to return the string buffer. PR: 259451 Reported by: sigsys@gmail.com Fixes: d053fb22f6d3 ("usr.bin/sort: Avoid UBSan errors") Sponsored by: The FreeBSD Foundation (cherry picked from commit e9bfb50d5e7aa5d673a5a35318820320c4190d33) usr.bin/sort/bwstring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Thanks for the report.