Date: Mon, 15 Aug 2022 18:59:48 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 265852] qat: kernel crash using krb5p with nfs Message-ID: <bug-265852-227-aKdAZ6e4J0@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-265852-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=265852 Mark Johnston <markj@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |markj@FreeBSD.org, | |mav@FreeBSD.org Status|New |Open --- Comment #1 from Mark Johnston <markj@FreeBSD.org> --- I believe this is a bug in kgssapi code. aes_checksum() and aes_encrypt_1() can observe that CRYPTO_F_DONE is set before the callback worker thread has had a chance to invoke the callback. Then the code frees the request, i.e., there is a use-after-free. kgssapi is ok with synchronous implementations of crypto routines, but not with async implementations like QAT. So the workaround for now is simply to not use QAT. I can provide a patch for testing, but I can't provide a truenas build. -- You are receiving this mail because: You are the assignee for the bug.home | help
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