Date: Sat, 08 May 2021 00:57:59 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 255695] crash in NFSv4.1 server when processing a callback reply Message-ID: <bug-255695-227-qrZwlSMiMt@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-255695-227@https.bugs.freebsd.org/bugzilla/> References: <bug-255695-227@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D255695 Rick Macklem <rmacklem@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|bugs@FreeBSD.org |rmacklem@FreeBSD.org Status|New |Open --- Comment #1 from Rick Macklem <rmacklem@FreeBSD.org> --- Created attachment 224761 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D224761&action= =3Dedit ref cnt the CLIENT structure so that it is not prematurely free'd This patch acquires a reference count on the CLIENT structure that is not released until the associated socket structure is destroyed. This should avoid the structure being free'd before a callback reply has been processed. It also adds a check for closed or closing, so that it does not try to process a callback reply after the CLIENT structure has been CLNT_CLOSE()'d. I think should fix the crash. I am waiting for a review and, hopefully, a positive test report from Michael Dexter, who reported the crash. --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-255695-227-qrZwlSMiMt>