Problem: This bug is also being reporting on my Lenovo x3650 Server, so adding here to confirm multiple occurrence/
Ubuntu Version: $ cat /etc/*release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=22.04 DISTRIB_CODENAME=jammy DISTRIB_DESCRIPTION="Ubuntu 22.04.1 LTS" PRETTY_NAME="Ubuntu 22.04.1 LTS" NAME="Ubuntu" VERSION_ID="22.04" VERSION="22.04.1 LTS (Jammy Jellyfish)" VERSION_CODENAME=jammy ID=ubuntu ID_LIKE=debian HOME_URL="https://www.ubuntu.com/"; SUPPORT_URL="https://help.ubuntu.com/"; BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"; PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"; UBUNTU_CODENAME=jammy kernel version: $ uname -a Linux blue 5.15.0-58-generic #64-Ubuntu SMP Thu Jan 5 11:43:13 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux [ 4.607349] UBSAN: array-index-out-of-bounds in /build/linux-oKJrrr/linux-5.15.0/drivers/scsi/megaraid/megaraid_sas_fp.c:103:32 [ 4.607725] index 5 is out of range for type 'MR_LD_SPAN_MAP [1]' [ 4.607925] CPU: 0 PID: 402 Comm: kworker/0:2 Not tainted 5.15.0-58-generic #64-Ubuntu [ 4.607930] Hardware name: LENOVO System x3650 M5: -[8871AC1]-/01KN179, BIOS -[TCE148A-3.30]- 10/26/2020 [ 4.607932] Workqueue: events work_for_cpu_fn [ 4.607944] Call Trace: [ 4.607948] <TASK> [ 4.607950] show_stack+0x52/0x5c [ 4.607958] dump_stack_lvl+0x4a/0x63 [ 4.607968] dump_stack+0x10/0x16 [ 4.607972] ubsan_epilogue+0x9/0x49 [ 4.607977] __ubsan_handle_out_of_bounds.cold+0x44/0x49 [ 4.607982] ? MR_PopulateDrvRaidMap+0x295/0x580 [megaraid_sas] [ 4.608002] mr_update_load_balance_params+0xb9/0xc0 [megaraid_sas] [ 4.608014] MR_ValidateMapInfo+0x8d/0x290 [megaraid_sas] [ 4.608025] megasas_init_adapter_fusion+0x3ce/0x420 [megaraid_sas] [ 4.608036] ? megasas_setup_reply_map+0x49/0xac [megaraid_sas] [ 4.608050] megasas_init_fw.cold+0x87f/0x10c8 [megaraid_sas] [ 4.608064] megasas_probe_one+0x15c/0x4e0 [megaraid_sas] [ 4.608075] local_pci_probe+0x4b/0x90 [ 4.608081] work_for_cpu_fn+0x1a/0x30 [ 4.608085] process_one_work+0x22b/0x3d0 [ 4.608089] worker_thread+0x223/0x420 [ 4.608092] ? process_one_work+0x3d0/0x3d0 [ 4.608095] kthread+0x12a/0x150 [ 4.608099] ? set_kthread_struct+0x50/0x50 [ 4.608103] ret_from_fork+0x22/0x30 [ 4.608110] </TASK> [ 4.608111] ================================================================================ [ 4.608385] ================================================================================ [ 4.608655] UBSAN: array-index-out-of-bounds in /build/linux-oKJrrr/linux-5.15.0/drivers/scsi/megaraid/megaraid_sas_fp.c:103:32 [ 4.609031] index 5 is out of range for type 'MR_LD_SPAN_MAP [1]' [ 4.609230] CPU: 0 PID: 402 Comm: kworker/0:2 Not tainted 5.15.0-58-generic #64-Ubuntu [ 4.609233] Hardware name: LENOVO System x3650 M5: -[8871AC1]-/01KN179, BIOS -[TCE148A-3.30]- 10/26/2020 [ 4.609234] Workqueue: events work_for_cpu_fn [ 4.609239] Call Trace: [ 4.609240] <TASK> [ 4.609241] show_stack+0x52/0x5c [ 4.609244] dump_stack_lvl+0x4a/0x63 [ 4.609249] dump_stack+0x10/0x16 [ 4.609253] ubsan_epilogue+0x9/0x49 [ 4.609257] __ubsan_handle_out_of_bounds.cold+0x44/0x49 [ 4.609262] ? mr_update_load_balance_params+0xb9/0xc0 [megaraid_sas] [ 4.609274] MR_ValidateMapInfo+0x20f/0x290 [megaraid_sas] [ 4.609285] megasas_init_adapter_fusion+0x3ce/0x420 [megaraid_sas] [ 4.609295] ? megasas_setup_reply_map+0x49/0xac [megaraid_sas] [ 4.609309] megasas_init_fw.cold+0x87f/0x10c8 [megaraid_sas] [ 4.609322] megasas_probe_one+0x15c/0x4e0 [megaraid_sas] [ 4.609333] local_pci_probe+0x4b/0x90 [ 4.609336] work_for_cpu_fn+0x1a/0x30 [ 4.609340] process_one_work+0x22b/0x3d0 [ 4.609343] worker_thread+0x223/0x420 [ 4.609346] ? process_one_work+0x3d0/0x3d0 [ 4.609349] kthread+0x12a/0x150 [ 4.609352] ? set_kthread_struct+0x50/0x50 [ 4.609356] ret_from_fork+0x22/0x30 [ 4.609361] </TASK> Also report on kernel.org bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=215943 ** Bug watch added: Linux Kernel Bug Tracker #215943 https://bugzilla.kernel.org/show_bug.cgi?id=215943 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2002842 Title: UBSAN: array-index-out-of-bounds in drivers/scsi/megaraid/megaraid_sas_fp.c:151:32 Status in linux package in Ubuntu: Confirmed Bug description: I'm getting UBSAN complains every boot, this issue exists for years, but I was lazy to report it as everything works. However, not sure if it is security issue: [ 1.866789] ================================================================================ [ 1.866992] ================================================================================ [ 1.867187] UBSAN: array-index-out-of-bounds in /build/linux-oKJrrr/linux-5.15.0/drivers/scsi/megaraid/megaraid_sas_fp.c:151:32 [ 1.867454] index 1 is out of range for type 'MR_LD_SPAN_MAP [1]' [ 1.867608] CPU: 0 PID: 203 Comm: kworker/0:1H Tainted: G I 5.15.0-58-generic #64-Ubuntu [ 1.867612] Hardware name: Gigabyte Technology Co., Ltd. X299 UD4/X299 UD4-CF, BIOS F6p 12/06/2021 [ 1.867614] Workqueue: kblockd blk_mq_run_work_fn [ 1.867620] Call Trace: [ 1.867621] <TASK> [ 1.867623] show_stack+0x52/0x5c [ 1.867628] dump_stack_lvl+0x4a/0x63 [ 1.867635] dump_stack+0x10/0x16 [ 1.867641] ubsan_epilogue+0x9/0x49 [ 1.867647] __ubsan_handle_out_of_bounds.cold+0x44/0x49 [ 1.867653] ? _printk+0x58/0x73 [ 1.867658] MR_GetPhyParams+0x487/0x700 [megaraid_sas] [ 1.867675] MR_BuildRaidContext+0x402/0xb50 [megaraid_sas] [ 1.867693] megasas_build_ldio_fusion+0x5b9/0x9a0 [megaraid_sas] [ 1.867710] megasas_build_io_fusion+0x412/0x450 [megaraid_sas] [ 1.867725] megasas_build_and_issue_cmd_fusion+0xa5/0x380 [megaraid_sas] [ 1.867739] megasas_queue_command+0x1be/0x200 [megaraid_sas] [ 1.867753] ? ktime_get+0x43/0xc0 [ 1.867759] scsi_dispatch_cmd+0x93/0x200 [ 1.867764] scsi_queue_rq+0x2d5/0x690 [ 1.867771] blk_mq_dispatch_rq_list+0x13c/0x680 [ 1.867779] ? sbitmap_get+0x1/0xe0 [ 1.867786] __blk_mq_do_dispatch_sched+0xba/0x2e0 [ 1.867792] blk_mq_do_dispatch_sched+0x40/0x70 [ 1.867797] __blk_mq_sched_dispatch_requests+0x105/0x150 [ 1.867802] blk_mq_sched_dispatch_requests+0x35/0x70 [ 1.867806] __blk_mq_run_hw_queue+0x34/0xc0 [ 1.867812] blk_mq_run_work_fn+0x1f/0x30 [ 1.867818] process_one_work+0x228/0x3d0 [ 1.867823] worker_thread+0x53/0x420 [ 1.867826] ? process_one_work+0x3d0/0x3d0 [ 1.867830] kthread+0x127/0x150 [ 1.867836] ? set_kthread_struct+0x50/0x50 [ 1.867843] ret_from_fork+0x1f/0x30 [ 1.867852] </TASK> [ 1.867853] ================================================================================ ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-image-5.15.0-58-generic 5.15.0-58.64 ProcVersionSignature: Ubuntu 5.15.0-58.64-generic 5.15.74 Uname: Linux 5.15.0-58-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu82.3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC3: vsukhoml 2725 F.... pulseaudio /dev/snd/controlC0: vsukhoml 2725 F.... pulseaudio /dev/snd/controlC1: vsukhoml 2725 F.... pulseaudio /dev/snd/controlC2: vsukhoml 2725 F.... pulseaudio CasperMD5CheckResult: unknown CurrentDesktop: XFCE Date: Fri Jan 13 11:12:10 2023 InstallationDate: Installed on 2020-05-03 (985 days ago) InstallationMedia: Xubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: Gigabyte Technology Co., Ltd. X299 UD4 ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-58-generic root=UUID=9f617cba-f115-4ee3-ad8e-de95fcd2ca03 ro quiet splash nomodeset RelatedPackageVersions: linux-restricted-modules-5.15.0-58-generic N/A linux-backports-modules-5.15.0-58-generic N/A linux-firmware 20220329.git681281e4-0ubuntu3.9 SourcePackage: linux UpgradeStatus: Upgraded to jammy on 2022-07-15 (182 days ago) dmi.bios.date: 12/06/2021 dmi.bios.release: 5.13 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F6p dmi.board.asset.tag: Default string dmi.board.name: X299 UD4-CF dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: Default string dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF6p:bd12/06/2021:br5.13:svnGigabyteTechnologyCo.,Ltd.:pnX299UD4:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnX299UD4-CF:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring:skuDefaultstring: dmi.product.family: Default string dmi.product.name: X299 UD4 dmi.product.sku: Default string dmi.product.version: Default string dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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