Date: Sun, 23 Feb 2020 20:26:49 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 244351] [7] Kernel panic observed while plugging the UFS USB drive on FreeBSD13-CURRENT, FreeBSD 12.1-RELEASE r354233 and FreeBSD 12.1-STABLE r358121 Message-ID: <bug-244351-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D244351 Bug ID: 244351 Summary: [7] Kernel panic observed while plugging the UFS USB drive on FreeBSD13-CURRENT, FreeBSD 12.1-RELEASE r354233 and FreeBSD 12.1-STABLE r358121 Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: neerajpal09@gmail.com Created attachment 211873 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D211873&action= =3Dedit Contains PoC UFS image and detailed logs includes 13-current, 12.1-release = and 12.1-stable Hi there, Kernel Panic is observed while mounting the usb drive which contains malici= ous UFS filesystem image. But if the automount is configured or user has ability to mount the usb dri= ve then during mount kernel panic occurs. No user authentication and interaction is needed in case of automount is configured, tested with "/etc/fstab". Just flash the attached UFS image to usb drive and plug the usb drive to FreeBSD 13-CURRENT, 12.1-RELEASE, or 12.1-STABLE, then mount it. [Kernel Log - FreeBSD 13-CURRENT] freebsd dumped core - see /var/crash/vmcore.4 Wed Feb 19 18:50:05 UTC 2020 FreeBSD freebsd 13.0-CURRENT FreeBSD 13.0-CURRENT #0: Wed Feb 19 01:58:08 U= TC 2020 root@freebsd:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64 panic: usermode va fffffdffb39cb000 GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain condition= s. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-marcel-freebsd"... Unread portion of the kernel message buffer: panic: usermode va fffffdffb39cb000 cpuid =3D 0 time =3D 1582138127 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0039f1d= 3d0 vpanic() at vpanic+0x185/frame 0xfffffe0039f1d430 panic() at panic+0x43/frame 0xfffffe0039f1d490 pmap_pinit0() at pmap_pinit0/frame 0xfffffe0039f1d4a0 allocbuf() at allocbuf+0x1fc/frame 0xfffffe0039f1d500 getblkx() at getblkx+0x6d9/frame 0xfffffe0039f1d5d0 getblk() at getblk+0x22/frame 0xfffffe0039f1d600 ffs_mount() at ffs_mount+0x1be0/frame 0xfffffe0039f1d7b0 vfs_domount() at vfs_domount+0x83c/frame 0xfffffe0039f1d9e0 vfs_donmount() at vfs_donmount+0x911/frame 0xfffffe0039f1da80 sys_nmount() at sys_nmount+0x69/frame 0xfffffe0039f1dac0 amd64_syscall() at amd64_syscall+0x168/frame 0xfffffe0039f1dbf0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0039f1dbf0 --- syscall (378, FreeBSD ELF64, sys_nmount), rip =3D 0x8002f7a1a, rsp =3D 0x7fffffffd3b8, rbp =3D 0x7fffffffd920 --- KDB: enter: panic Uptime: 6m53s Dumping 262 out of 4062 MB:..7%..13%..25%..31%..43%..55%..61%..74%..86%..92% [Attachments] + UFS filesystem image + detailed logs from FreeBSD 13-CURRENT, 12.1-RELEASE, and 12.1-STABLE. --=20 You are receiving this mail because: You are the assignee for the bug.=
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