Date: Fri, 17 Jun 2022 19:38:51 GMT From: Dmitry Chagin <dchagin@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: ccbef519e0c6 - stable/13 - linux(4): wait4() returns ESRCH if pid is INT_MIN. Message-ID: <202206171938.25HJcpvJ015228@gitrepo.freebsd.org>
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The branch stable/13 has been updated by dchagin: URL: https://cgit.FreeBSD.org/src/commit/?id=ccbef519e0c69cc19af2e56bd7ce307ca6daefee commit ccbef519e0c69cc19af2e56bd7ce307ca6daefee Author: Dmitry Chagin <dchagin@FreeBSD.org> AuthorDate: 2022-03-31 17:49:39 +0000 Commit: Dmitry Chagin <dchagin@FreeBSD.org> CommitDate: 2022-06-17 19:33:46 +0000 linux(4): wait4() returns ESRCH if pid is INT_MIN. Weird and undocumented patch was added to the Linux kernel in 2017, fixes wait403 LTP test. MFC after: 2 weeks (cherry picked from commit 9103c5582a2d271fa8f4df136ae511da572c660f) --- sys/compat/linux/linux_misc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c index ea7dafec0849..fa7d364681dc 100644 --- a/sys/compat/linux/linux_misc.c +++ b/sys/compat/linux/linux_misc.c @@ -1054,6 +1054,10 @@ linux_wait4(struct thread *td, struct linux_wait4_args *args) LINUX_WCONTINUED | __WCLONE | __WNOTHREAD | __WALL)) return (EINVAL); + /* -INT_MIN is not defined. */ + if (args->pid == INT_MIN) + return (ESRCH); + options = 0; linux_to_bsd_waitopts(args->options, &options);
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