Date: Tue, 31 Mar 2009 12:00:50 GMT From: Bruce Cran <bruce@cran.org.uk> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/133240: [boot] off-by-one error in gets.c causes panic when input buffer is filled Message-ID: <200903311200.n2VC0oeZ051904@www.freebsd.org> Resent-Message-ID: <200903311210.n2VCA174026846@freefall.freebsd.org>
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>Number: 133240 >Category: kern >Synopsis: [boot] off-by-one error in gets.c causes panic when input buffer is filled >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Mar 31 12:10:01 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Bruce Cran >Release: 7-STABLE >Organization: >Environment: 8-CURRENT and 7-STABLE >Description: If the input buffer at the loader prompt (OK) is filled until no more characters can be entered then a panic occurs when the enter key is pressed due to an off-by-one error in src/lib/libstand/gets.c. Line 77 of gets.c should be comparing (lp-buf) against (n-1) instead of n. >How-To-Repeat: At the loader (OK) prompt, enter "boot " followed by as many characters as possible until they stop being accepted. Press Enter. >Fix: Line 77 of src/lib/libstand/gets.c should be comparing (lp-buf) against (n-1) instead of n. >Release-Note: >Audit-Trail: >Unformatted:
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