Comment 23 for bug 1970074

Also hitting the same SATA port multiplier bug:

# uname -a
Linux server 5.15.0-48-generic #54-Ubuntu SMP Fri Aug 26 13:26:29 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

# dmesg
[..]
[ 3.228910] ata6: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 3.228922] ================================================================================
[ 3.228926] UBSAN: array-index-out-of-bounds in /build/linux-kQ6jNR/linux-5.15.0/drivers/ata/libahci.c:968:41
[ 3.228931] index 15 is out of range for type 'ahci_em_priv [8]'
[ 3.228934] CPU: 10 PID: 283 Comm: scsi_eh_5 Not tainted 5.15.0-48-generic #54-Ubuntu
[ 3.228939] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B450M Pro4, BIOS P5.30 08/04/2021
[ 3.228944] Call Trace:
[ 3.228947] <TASK>
[ 3.228950] show_stack+0x52/0x5c
[ 3.228955] dump_stack_lvl+0x4a/0x63
[ 3.228961] dump_stack+0x10/0x16
[ 3.228965] ubsan_epilogue+0x9/0x49
[ 3.228969] __ubsan_handle_out_of_bounds.cold+0x44/0x49
[ 3.228974] ahci_qc_issue+0x16e/0x170 [libahci]
[ 3.228981] ata_qc_issue+0x132/0x250
[ 3.228986] ata_exec_internal_sg+0x2c4/0x580
[ 3.228990] ? vprintk_default+0x1d/0x30
[ 3.228996] ata_exec_internal+0x67/0xa0
[ 3.229000] sata_pmp_read+0x8d/0xc0
[ 3.229004] sata_pmp_read_gscr+0x3c/0xa0
[ 3.229008] sata_pmp_attach+0x8b/0x320
[ 3.229013] ata_eh_revalidate_and_attach+0x290/0x4c0
[ 3.229019] ata_eh_recover+0x6b6/0xb30
[ 3.229022] ? ahci_do_hardreset+0x180/0x180 [libahci]
[ 3.229028] ? ahci_stop_engine+0xb0/0xb0 [libahci]
[ 3.229033] ? ahci_do_softreset+0x290/0x290 [libahci]
[ 3.229038] ? trace_event_raw_event_ata_eh_link_autopsy_qc+0xf0/0xf0
[ 3.229044] sata_pmp_eh_recover.isra.0+0x214/0x570
[ 3.229049] sata_pmp_error_handler+0x23/0x40
[ 3.229053] ahci_error_handler+0x43/0x80 [libahci]
[ 3.229059] ata_scsi_port_error_handler+0x2ae/0x600
[ 3.229063] ata_scsi_error+0x9c/0xd0
[ 3.229066] scsi_error_handler+0x9e/0x180
[ 3.229070] ? scsi_unjam_host+0x1c0/0x1c0
[ 3.229073] kthread+0x127/0x150
[ 3.229078] ? set_kthread_struct+0x50/0x50
[ 3.229082] ret_from_fork+0x1f/0x30
[ 3.229088] </TASK>
[ 3.229090] ================================================================================
[ 3.229300] ata6.15: Port Multiplier 1.2, 0x197b:0x575f r0, 15 ports, feat 0x5/0xf
[ 3.230403] ata6.00: hard resetting link
[ 3.705094] ata6.00: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 3.705127] ata6.01: hard resetting link
[ 4.181093] ata6.01: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 4.181127] ata6.02: hard resetting link
[ 4.657095] ata6.02: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 4.657128] ata6.03: hard resetting link
[ 5.133093] ata6.03: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 5.133126] ata6.04: hard resetting link
[ 5.450154] ata6.04: SATA link down (SStatus 0 SControl 330)
[ 5.450210] ata6.05: hard resetting link
[ 5.766149] ata6.05: SATA link down (SStatus 0 SControl 330)
[ 5.766206] ata6.06: hard resetting link
[ 6.082149] ata6.06: SATA link down (SStatus 0 SControl 330)
[ 6.082205] ata6.07: hard resetting link
[ 6.398147] ata6.07: SATA link down (SStatus 0 SControl 330)
[ 6.398203] ata6.08: hard resetting link
[ 6.709083] ata6.08: SATA link down (SStatus 0 SControl 330)
[ 6.709139] ata6.09: hard resetting link
[ 7.021157] ata6.09: SATA link down (SStatus 0 SControl 330)
[ 7.021213] ata6.10: hard resetting link
[ 7.337993] ata6.10: SATA link down (SStatus 0 SControl 330)
[ 7.338050] ata6.11: hard resetting link
[ 7.653996] ata6.11: SATA link down (SStatus 0 SControl 330)
[ 7.654053] ata6.12: hard resetting link
[ 7.970174] ata6.12: SATA link down (SStatus 0 SControl 330)
[ 7.970230] ata6.13: hard resetting link
[ 8.286146] ata6.13: SATA link down (SStatus 0 SControl 330)
[ 8.286202] ata6.14: hard resetting link
[ 8.602168] ata6.14: SATA link down (SStatus 0 SControl 330)
[ 8.602719] ata6.00: ATA-9: WDC WD40EFRX-68WT0N0, 80.00A80, max UDMA/133
[ 8.603005] ata6.00: ATA Identify Device Log not supported
[ 8.603012] ata6.00: 7814037168 sectors, multi 16: LBA48 NCQ (depth 32), AA
[ 8.604194] ata6.00: ATA Identify Device Log not supported
[ 8.604204] ata6.00: configured for UDMA/133
[ 8.604767] ata6.01: ATA-9: WDC WD80EMAZ-00WJTA0, 83.H0A83, max UDMA/133
[ 18.870432] ata6.01: 15628053168 sectors, multi 0: LBA48 NCQ (depth 32), AA
[ 19.148337] ata6.01: Features: NCQ-sndrcv NCQ-prio
[ 19.402797] ata6.01: configured for UDMA/133
[ 19.403423] ata6.02: ATA-9: WDC WD80EMAZ-00WJTA0, 83.H0A83, max UDMA/133
[ 29.928054] ata6.02: 15628053168 sectors, multi 0: LBA48 NCQ (depth 32), AA
[ 30.185317] ata6.02: Features: NCQ-sndrcv NCQ-prio
[ 30.196587] ata6.02: configured for UDMA/133
[ 30.197169] ata6.03: ATA-9: WDC WD40EFRX-68WT0N0, 80.00A80, max UDMA/133
[ 30.197555] ata6.03: ATA Identify Device Log not supported
[ 30.197562] ata6.03: 7814037168 sectors, multi 0: LBA48 NCQ (depth 32), AA
[ 30.198533] ata6.03: ATA Identify Device Log not supported
[ 30.198543] ata6.03: configured for UDMA/133
[ 30.198604] ata6: EH complete
[..]