[Bug 263979] [meta] UFS / FFS / GEOM crash (panic) tracking

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263979

            Bug ID: 263979
           Summary: [meta] UFS / FFS / GEOM crash (panic) tracking
           Product: Base System
           Version: Unspecified
          Hardware: Any
                OS: Any
            Status: New
          Keywords: crash, tracking
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: koobs@FreeBSD.org
                CC: fs@FreeBSD.org, geom@FreeBSD.org, mckusick@FreeBSD.org
        Depends on: 244342, 244344, 244351, 244352, 257557, 263765,
                    263811, 263822, 263836, 263934, 263971, 253617
             Flags: maintainer-feedback?(mckusick@FreeBSD.org)

Tracking issue to make coordination of existing ffs/ufs crash reports easier.
Linked issues involve at least some aspect of ffs in the crash backtraces


Referenced Bugs:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244342
[Bug 244342] geom(4): Panic plugging in UFS USB drive: panic: g_read_data():
invalid length 11866112 (13-CURRENT, 12.1-RELEASE r354233, 12.1-STABLE r358121)
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244344
[Bug 244344] geom(4): Panic plugging in UFS USB drive: Memory modified after
free 0xfffffe003a559000(65528) val=4 @ 0xfffffe003a559000 (13-CURRENT,
12.1-RELEASE r354233, 12.1-STABLE r358121)
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244351
[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
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244352
[Bug 244352] [8] [Kernel panic: ufs_dirbad: /mnt/test: bad dir ino 2 at offset
154: mangled entry] observed while mouting the UFS USB drive on
FreeBSD13-CURRENT, FreeBSD 12.1-RELEASE r354233 and FreeBSD 12.1-STABLE r358121
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253617
[Bug 253617] ffs_sbget: panic: Unregistered use of FPU in kernel
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=257557
[Bug 257557] Garbage on disk (or USB memory stick) can cause GEOM taste
ffs_sbget() to crash.
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263765
[Bug 263765] panic: ffs_sync: modification on read-only filesystem
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263811
[Bug 263811] ffs(4): Disk with garbage can cause crash in taste ffs crc32 code:
panic: g_read_data(): invalid length -268744963
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263822
[Bug 263822] ffs(4): malicious USB memory stick can cause panic in FFS taste
code: panic: Assertion size > 0 failed at
/usr/rtm/symbsd/src/sys/kern/subr_vmem.c:1332
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263836
[Bug 263836] ffs(4): Crash or hang in taste call to ffs_sbget() if not an FFS
superblock: panic: g_read_data(): invalid length -268744963
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263934
[Bug 263934] buffer overflow in ffs_sbget() if superblock fields are broken
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263971
[Bug 263971] ffs: malicious superblock can cause buffer overflow during
tasting: panic: vm_fault_lookup: fault on nofault entry, addr:
0xffffffc07cb67000
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