Date: Fri, 24 Oct 2025 00:02:53 GMT From: Bryan Drewery <bdrewery@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 35f375549c7f - main - cut: Avoid undefined behavior. Message-ID: <202510240002.59O02rqd083399@gitrepo.freebsd.org>
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The branch main has been updated by bdrewery: URL: https://cgit.FreeBSD.org/src/commit/?id=35f375549c7f4d479ba1d9fcd0a368b0219c4ae6 commit 35f375549c7f4d479ba1d9fcd0a368b0219c4ae6 Author: Bryan Drewery <bdrewery@FreeBSD.org> AuthorDate: 2025-10-20 18:33:31 +0000 Commit: Bryan Drewery <bdrewery@FreeBSD.org> CommitDate: 2025-10-24 00:01:58 +0000 cut: Avoid undefined behavior. Summary: UBSAN complains about p[signed - unsigned] wrapping around. Reviewed by: kevans Differential Revision: https://reviews.freebsd.org/D53226 --- usr.bin/cut/cut.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/usr.bin/cut/cut.c b/usr.bin/cut/cut.c index 60ff5a31062a..e4e322b4e5c9 100644 --- a/usr.bin/cut/cut.c +++ b/usr.bin/cut/cut.c @@ -448,8 +448,8 @@ f_cut(FILE *fp, const char *fname) break; } if (*pos) - for (i = 0; i < (int)clen; i++) - putchar(p[i - clen]); + (void)fwrite(p - clen, 1, clen, + stdout); } if (ch == '\n') break;home | help
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