Update: Last night I tried as far back as 18.04 and it turns out this
has been backported everywhere. I've had these controllers since
2016-ish, have never had a problem before. Now I can't even work around
by installing older kernels (s/a 5.3 used for 18.04.5).

Finding other HWRAID controllers is not a solution for me.

Here's the good news:

https://github.com/torvalds/linux/commit/1e41e693f458eef2d5728207dbd327cd3b16580a

...has been merged into 6.1-rc4. So, help is on the way.

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https://bugs.launchpad.net/bugs/1970074

Title:
  UBSAN: array-index-out-of-bounds in
  /build/linux-9H675w/linux-5.15.0/drivers/ata/libahci.c:968:41

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Something wrong with ata driver in dmesg found:

  [    1.980693] kernel: 
================================================================================
  [    1.980699] kernel: fbcon: Taking over console
  [    1.980703] kernel: UBSAN: array-index-out-of-bounds in 
/build/linux-9H675w/linux-5.15.0/drivers/ata/libahci.c:968:41
  [    1.980709] kernel: index 15 is out of range for type 'ahci_em_priv [8]'
  [    1.980713] kernel: CPU: 0 PID: 209 Comm: scsi_eh_8 Not tainted 
5.15.0-25-generic #25-Ubuntu
  [    1.980716] kernel: Hardware name: System manufacturer System Product 
Name/P5Q3, BIOS 1102    06/11/2010
  [    1.980718] kernel: Call Trace:
  [    1.980721] kernel:  <TASK>
  [    1.980723] kernel:  show_stack+0x52/0x58
  [    1.980729] kernel:  dump_stack_lvl+0x4a/0x5f
  [    1.980734] kernel:  dump_stack+0x10/0x12
  [    1.980736] kernel:  ubsan_epilogue+0x9/0x45
  [    1.980739] kernel:  __ubsan_handle_out_of_bounds.cold+0x44/0x49
  [    1.980742] kernel:  ahci_qc_issue+0x166/0x170 [libahci]
  [    1.980748] kernel:  ata_qc_issue+0x135/0x240
  [    1.980752] kernel:  ata_exec_internal_sg+0x2c4/0x580
  [    1.980754] kernel:  ? vprintk_default+0x1d/0x20
  [    1.980759] kernel:  ata_exec_internal+0x67/0xa0
  [    1.980762] kernel:  sata_pmp_read+0x8d/0xc0
  [    1.980765] kernel:  sata_pmp_read_gscr+0x3c/0x90
  [    1.980768] kernel:  sata_pmp_attach+0x8b/0x310
  [    1.980771] kernel:  ata_eh_revalidate_and_attach+0x28c/0x4b0
  [    1.980775] kernel:  ata_eh_recover+0x6b6/0xb30
  [    1.980778] kernel:  ? ahci_do_hardreset+0x180/0x180 [libahci]
  [    1.980783] kernel:  ? ahci_stop_engine+0xb0/0xb0 [libahci]
  [    1.980787] kernel:  ? ahci_do_softreset+0x290/0x290 [libahci]
  [    1.980792] kernel:  ? 
trace_event_raw_event_ata_eh_link_autopsy_qc+0xe0/0xe0
  [    1.980795] kernel:  sata_pmp_eh_recover.isra.0+0x214/0x560
  [    1.980799] kernel:  sata_pmp_error_handler+0x23/0x40
  [    1.980802] kernel:  ahci_error_handler+0x43/0x80 [libahci]
  [    1.980806] kernel:  ata_scsi_port_error_handler+0x2b1/0x600
  [    1.980810] kernel:  ata_scsi_error+0x9c/0xd0
  [    1.980813] kernel:  scsi_error_handler+0xa1/0x180
  [    1.980817] kernel:  ? scsi_unjam_host+0x1c0/0x1c0
  [    1.980820] kernel:  kthread+0x12a/0x150
  [    1.980823] kernel:  ? set_kthread_struct+0x50/0x50
  [    1.980826] kernel:  ret_from_fork+0x22/0x30
  [    1.980831] kernel:  </TASK>

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: linux-image-5.15.0-25-generic 5.15.0-25.25
  ProcVersionSignature: Ubuntu 5.15.0-25.25-generic 5.15.30
  Uname: Linux 5.15.0-25-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  eugene    16798 F.... pulseaudio
   /dev/snd/pcmC0D0p:   eugene    16798 F...m pulseaudio
   /dev/snd/controlC1:  eugene    16798 F.... pulseaudio
  CasperMD5CheckResult: unknown
  CurrentDesktop: KDE
  Date: Sun Apr 24 05:13:34 2022
  HibernationDevice: RESUME=UUID=7e115b53-56a4-444f-bd93-6ad4f15c4a61
  InstallationDate: Installed on 2019-04-13 (1106 days ago)
  InstallationMedia: Kubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190326.1)
  IwConfig:
   lo        no wireless extensions.

   enp2s0    no wireless extensions.

   virbr0    no wireless extensions.
  MachineType: System manufacturer System Product Name
  ProcEnviron:
   LANGUAGE=
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=uk_UA.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-5.15.0-25-generic 
root=UUID=d87288b4-dbdd-4448-8088-4ebb6ed6cf33 ro rootflags=subvol=@ quiet 
splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-5.15.0-25-generic N/A
   linux-backports-modules-5.15.0-25-generic  N/A
   linux-firmware                             20220329.git681281e4-0ubuntu1
  RfKill:

  SourcePackage: linux
  UpgradeStatus: Upgraded to jammy on 2022-04-22 (1 days ago)
  dmi.bios.date: 06/11/2010
  dmi.bios.release: 11.2
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1102
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P5Q3
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr1102:bd06/11/2010:br11.2:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5Q3:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:skuToBeFilledByO.E.M.:
  dmi.product.family: To Be Filled By O.E.M.
  dmi.product.name: System Product Name
  dmi.product.sku: To Be Filled By O.E.M.
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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