Date: Fri, 29 Apr 2016 20:20:41 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-fs@FreeBSD.org Subject: [Bug 204643] [msdosfs] [panic] Crash while accessing files with large, non-english names Message-ID: <bug-204643-3630-pneclfKijS@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-204643-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-204643-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D204643 --- Comment #7 from commit-hook@freebsd.org --- A commit references this bug: Author: kp Date: Fri Apr 29 20:19:41 UTC 2016 New revision: 298799 URL: https://svnweb.freebsd.org/changeset/base/298799 Log: MFC r298664 msdosfs: Prevent buffer overflow when expanding win95 names In win2unixfn() we expand Windows 95 style long names. In some cases that requires moving the data in the nbp->nb_buf buffer backwards to make room. That code failed to check for overflows, leading to a stack overflow in win2unixfn(). We now check for this event, and mark the entire conversion as failed in = that case. This means we present the 8 character, dos style, name instead. PR: 204643 Differential Revision: https://reviews.freebsd.org/D6015 Changes: _U stable/10/ stable/10/sys/fs/msdosfs/direntry.h stable/10/sys/fs/msdosfs/msdosfs_conv.c --=20 You are receiving this mail because: You are the assignee for the bug.=
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