Date: Thu, 28 Oct 2021 17:51:50 +0000
From: bugzilla-noreply@freebsd.org
To: bugs@FreeBSD.org
Subject: [Bug 248184] readlink("/proc/curproc/file") returns arbitrary correct name for programs with more than one link (name)
Message-ID: <bug-248184-227-GJaHXYZ09j@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-248184-227@https.bugs.freebsd.org/bugzilla/>
References: <bug-248184-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D248184 --- Comment #8 from commit-hook@FreeBSD.org --- A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=3D0c10648fbb758bb76fd29330b7fe1bc51= 9252325 commit 0c10648fbb758bb76fd29330b7fe1bc519252325 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2021-10-23 00:24:08 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2021-10-28 17:49:31 +0000 exec: provide right hardlink name in AT_EXECPATH For this, use vn_fullpath_hardlink() to resolve executable name for execve(2). This should provide the right hardlink name, used for execution, instead of random hardlink pointing to this binary. Also this should make the AT_EXECNAME reliable for execve(2), since kernel only needs to resolve parent directory path, which should always succeed (except pathological cases like unlinking a directory). PR: 248184 Reviewed by: markj Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D32611 sys/kern/kern_exec.c | 38 ++++++++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 10 deletions(-) --=20 You are receiving this mail because: You are the assignee for the bug.=
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