I got this bug today in Ubuntu 22.04 root@ceph1:~# uname -a Linux ceph1 5.15.0-58-generic #64-Ubuntu SMP Thu Jan 5 11:43:13 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux root@ceph1:~# cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=22.04 DISTRIB_CODENAME=jammy DISTRIB_DESCRIPTION="Ubuntu 22.04.1 LTS"
[ 17.317308] ================================================================================ [ 17.317310] UBSAN: array-index-out-of-bounds in /build/linux-oKJrrr/linux-5.15.0/drivers/scsi/megaraid/megaraid_sas_fp.c:103:32 [ 17.317312] index 1 is out of range for type 'MR_LD_SPAN_MAP [1]' [ 17.317314] CPU: 16 PID: 116 Comm: kworker/16:0H Not tainted 5.15.0-58-generic #64-Ubuntu [ 17.317317] Hardware name: Dell Inc. PowerEdge R620/0VV3F2, BIOS 2.9.0 12/06/2019 [ 17.317319] Workqueue: kblockd blk_mq_run_work_fn [ 17.317326] Call Trace: [ 17.317329] <TASK> [ 17.317332] show_stack+0x52/0x5c [ 17.317337] dump_stack_lvl+0x4a/0x63 [ 17.317343] dump_stack+0x10/0x16 [ 17.317345] ubsan_epilogue+0x9/0x49 [ 17.317357] __ubsan_handle_out_of_bounds.cold+0x44/0x49 [ 17.317361] MR_BuildRaidContext+0xa5e/0xb50 [megaraid_sas] [ 17.317375] megasas_build_ldio_fusion+0x5b9/0x9a0 [megaraid_sas] [ 17.317384] megasas_build_io_fusion+0x412/0x450 [megaraid_sas] [ 17.317391] megasas_build_and_issue_cmd_fusion+0xa5/0x380 [megaraid_sas] [ 17.317398] megasas_queue_command+0x1c1/0x200 [megaraid_sas] [ 17.317405] ? ktime_get+0x46/0xc0 [ 17.317409] scsi_dispatch_cmd+0x96/0x200 [ 17.317412] scsi_queue_rq+0x2d5/0x690 [ 17.317415] blk_mq_dispatch_rq_list+0x13f/0x680 [ 17.317418] ? sbitmap_get+0x1/0xe0 [ 17.317422] __blk_mq_do_dispatch_sched+0xba/0x2e0 [ 17.317424] blk_mq_do_dispatch_sched+0x40/0x70 [ 17.317426] __blk_mq_sched_dispatch_requests+0x105/0x150 [ 17.317428] blk_mq_sched_dispatch_requests+0x35/0x70 [ 17.317429] __blk_mq_run_hw_queue+0x34/0xc0 [ 17.317432] blk_mq_run_work_fn+0x1f/0x30 [ 17.317434] process_one_work+0x22b/0x3d0 [ 17.317436] worker_thread+0x53/0x420 [ 17.317438] ? process_one_work+0x3d0/0x3d0 [ 17.317439] kthread+0x12a/0x150 [ 17.317441] ? set_kthread_struct+0x50/0x50 [ 17.317444] ret_from_fork+0x22/0x30 [ 17.317448] </TASK> [ 17.317449] ================================================================================ [ 17.317450] ================================================================================ -- 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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