Date: Fri, 28 Jul 2023 22:02:18 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 258063] Kernel panic from a corrupt cd9660 image. Message-ID: <bug-258063-227-MponMfEes6@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-258063-227@https.bugs.freebsd.org/bugzilla/> References: <bug-258063-227@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=3D258063 John Baldwin <jhb@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jhb@FreeBSD.org Assignee|bugs@FreeBSD.org |jhb@FreeBSD.org --- Comment #2 from John Baldwin <jhb@FreeBSD.org> --- The root issue I believe is that the cd9660 vfs doesn't support volumes whe= re the logical block size in the primary volume descriptor is smaller than the sector size of the underlying medium. Fixing this would require auditing a= ll the places that call bread*/bwrite* in cd9660 and fixing them to align requ= ests on the underlying sector boundary, both by rounding up the size but also by possibly using an offset into the buf's b_data. Rather than solve that bigger problem, I've just added a check during mount= to reject such volumes in the proposed patch at https://reviews.freebsd.org/D4= 1228 --=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-258063-227-MponMfEes6>