Date: Thu, 26 Aug 2021 15:29:11 +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@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D258063 Bug ID: 258063 Summary: Kernel panic from a corrupt cd9660 image. Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: rtm@lcs.mit.edu Created attachment 227450 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D227450&action= =3Dedit mount_cd9660 of this image on a CD causes CURRENT to panic. If I write the attached file to a CD with cdrecord, and then mount it on my amd64 machine, it panics. You can also get the panic with # mdconfig -S 2048 -f bad2.iso # mount_cd9660 /dev/md0 /mnt FreeBSD 14.0-CURRENT (GENERIC) #0 main-n248636-d20e9e02db3: Thu Aug 12 05:4= 7:18 UTC 2021 panic: wrong offset -1099511604224 for sectorsize 2048 cpuid =3D 1 time =3D 1629984411 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0063ad1= 410 vpanic() at vpanic+0x187/frame 0xfffffe0063ad1470 panic() at panic+0x43/frame 0xfffffe0063ad14d0 g_io_request() at g_io_request+0x2ae/frame 0xfffffe0063ad1500 breadn_flags() at breadn_flags+0x1a3/frame 0xfffffe0063ad1570 cd9660_mount() at cd9660_mount+0x941/frame 0xfffffe0063ad1770 vfs_domount() at vfs_domount+0x8d8/frame 0xfffffe0063ad19e0 vfs_donmount() at vfs_donmount+0x880/frame 0xfffffe0063ad1a80 sys_nmount() at sys_nmount+0x69/frame 0xfffffe0063ad1ac0 amd64_syscall() at amd64_syscall+0x12e/frame 0xfffffe0063ad1bf0 fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0063ad1bf0 --- syscall (378, FreeBSD ELF64, sys_nmount), rip =3D 0x8011abafa, rsp =3D 0x7fffffffe278, rbp =3D 0x7fffffffea20 --- --=20 You are receiving this mail because: You are the assignee for the bug.=
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