Date: Sun, 3 Feb 2002 18:56:10 +0000 (GMT) From: Mike Silbersack <silby@silby.com> To: Jason Stone <jason@shalott.net> Cc: freebsd-security@freebsd.org Subject: Re: crashs on 4.5RC Message-ID: <20020203185219.P11305-100000@patrocles.silby.com> In-Reply-To: <20020203143638.N6370-100000@walter>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sun, 3 Feb 2002, Jason Stone wrote: > The last messages in my logs before the box went down were: > > Feb 2 11:47:28 walter /kernel: m_retry failed, consider increase mbuf value > Feb 2 11:47:28 walter /kernel: m_retryhdr failed, consider increase mbuf value > Feb 2 11:47:29 walter /kernel: fxp0: mbuf allocation failed, packet dropped! > Feb 2 11:47:29 walter last message repeated 15 times > > So my question is, is it possible to panic and crash a FreeBSD box by > overflowing its nmbclusters? > > -Jason In theory, no. However, if there's a piece of code which doesn't expect to have mbuf allocations ever fail, then a panic and crash could very well occur. Also, network connections failing could cause a userland app to start acting really strange. So, we'd need more information to really know. Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20020203185219.P11305-100000>