Date: Wed, 23 Oct 2024 22:13:22 GMT From: Mark Johnston <markj@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 9b2f2fbfcbc5 - main - devmatch: Catch truncated linker hints files Message-ID: <202410232213.49NMDMwx085624@gitrepo.freebsd.org>
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The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=9b2f2fbfcbc51f77e96a41e62b1c06a8ccd4ca15 commit 9b2f2fbfcbc51f77e96a41e62b1c06a8ccd4ca15 Author: Mark Johnston <markj@FreeBSD.org> AuthorDate: 2024-10-23 16:55:16 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2024-10-23 22:12:45 +0000 devmatch: Catch truncated linker hints files PR: 282268 Reviewed by: christos, imp MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D47243 --- sbin/devmatch/devmatch.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/sbin/devmatch/devmatch.c b/sbin/devmatch/devmatch.c index 49f9be00a2e7..4a5a300ca313 100644 --- a/sbin/devmatch/devmatch.c +++ b/sbin/devmatch/devmatch.c @@ -127,6 +127,12 @@ read_linker_hints(void) err(1, "Can't open %s for reading", fn); } + if (len < sizeof(int)) { + warnx("Linker hints file too short."); + free(hints); + hints = NULL; + return; + } if (*(int *)(intptr_t)hints != LINKER_HINTS_VERSION) { warnx("Linker hints version %d doesn't match expected %d.", *(int *)(intptr_t)hints, LINKER_HINTS_VERSION);
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