CVE-ID

CVE-2024-26873
Learn more at National Vulnerability Database (NVD)
• CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: hisi_sas: Fix a deadlock issue related to automatic dump If we issue a disabling PHY command, the device attached with it will go offline, if a 2 bit ECC error occurs at the same time, a hung task may be found: [ 4613.652388] INFO: task kworker/u256:0:165233 blocked for more than 120 seconds. [ 4613.666297] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4613.674809] task:kworker/u256:0 state:D stack: 0 pid:165233 ppid: 2 flags:0x00000208 [ 4613.683959] Workqueue: 0000:74:02.0_disco_q sas_revalidate_domain [libsas] [ 4613.691518] Call trace: [ 4613.694678] __switch_to+0xf8/0x17c [ 4613.698872] __schedule+0x660/0xee0 [ 4613.703063] schedule+0xac/0x240 [ 4613.706994] schedule_timeout+0x500/0x610 [ 4613.711705] __down+0x128/0x36c [ 4613.715548] down+0x240/0x2d0 [ 4613.719221] hisi_sas_internal_abort_timeout+0x1bc/0x260 [hisi_sas_main] [ 4613.726618] sas_execute_internal_abort+0x144/0x310 [libsas] [ 4613.732976] sas_execute_internal_abort_dev+0x44/0x60 [libsas] [ 4613.739504] hisi_sas_internal_task_abort_dev.isra.0+0xbc/0x1b0 [hisi_sas_main] [ 4613.747499] hisi_sas_dev_gone+0x174/0x250 [hisi_sas_main] [ 4613.753682] sas_notify_lldd_dev_gone+0xec/0x2e0 [libsas] [ 4613.759781] sas_unregister_common_dev+0x4c/0x7a0 [libsas] [ 4613.765962] sas_destruct_devices+0xb8/0x120 [libsas] [ 4613.771709] sas_do_revalidate_domain.constprop.0+0x1b8/0x31c [libsas] [ 4613.778930] sas_revalidate_domain+0x60/0xa4 [libsas] [ 4613.784716] process_one_work+0x248/0x950 [ 4613.789424] worker_thread+0x318/0x934 [ 4613.793878] kthread+0x190/0x200 [ 4613.797810] ret_from_fork+0x10/0x18 [ 4613.802121] INFO: task kworker/u256:4:316722 blocked for more than 120 seconds. [ 4613.816026] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4613.824538] task:kworker/u256:4 state:D stack: 0 pid:316722 ppid: 2 flags:0x00000208 [ 4613.833670] Workqueue: 0000:74:02.0 hisi_sas_rst_work_handler [hisi_sas_main] [ 4613.841491] Call trace: [ 4613.844647] __switch_to+0xf8/0x17c [ 4613.848852] __schedule+0x660/0xee0 [ 4613.853052] schedule+0xac/0x240 [ 4613.856984] schedule_timeout+0x500/0x610 [ 4613.861695] __down+0x128/0x36c [ 4613.865542] down+0x240/0x2d0 [ 4613.869216] hisi_sas_controller_prereset+0x58/0x1fc [hisi_sas_main] [ 4613.876324] hisi_sas_rst_work_handler+0x40/0x8c [hisi_sas_main] [ 4613.883019] process_one_work+0x248/0x950 [ 4613.887732] worker_thread+0x318/0x934 [ 4613.892204] kthread+0x190/0x200 [ 4613.896118] ret_from_fork+0x10/0x18 [ 4613.900423] INFO: task kworker/u256:1:348985 blocked for more than 121 seconds. [ 4613.914341] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4613.922852] task:kworker/u256:1 state:D stack: 0 pid:348985 ppid: 2 flags:0x00000208 [ 4613.931984] Workqueue: 0000:74:02.0_event_q sas_port_event_worker [libsas] [ 4613.939549] Call trace: [ 4613.942702] __switch_to+0xf8/0x17c [ 4613.946892] __schedule+0x660/0xee0 [ 4613.951083] schedule+0xac/0x240 [ 4613.955015] schedule_timeout+0x500/0x610 [ 4613.959725] wait_for_common+0x200/0x610 [ 4613.964349] wait_for_completion+0x3c/0x5c [ 4613.969146] flush_workqueue+0x198/0x790 [ 4613.973776] sas_porte_broadcast_rcvd+0x1e8/0x320 [libsas] [ 4613.979960] sas_port_event_worker+0x54/0xa0 [libsas] [ 4613.985708] process_one_work+0x248/0x950 [ 4613.990420] worker_thread+0x318/0x934 [ 4613.994868] kthread+0x190/0x200 [ 4613.998800] ret_from_fork+0x10/0x18 This is because when the device goes offline, we obtain the hisi_hba semaphore and send the ABORT_DEV command to the device. However, the internal abort timed out due to the 2 bit ECC error and triggers automatic dump. In addition, since the hisi_hba semaphore has been obtained, the dump cannot be executed and the controller cannot be reset. Therefore, the deadlocks occur on the following circular dependencies ---truncated---
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
Assigning CNA
kernel.org
Date Record Created
20240219 Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240219)
Votes (Legacy)
Comments (Legacy) 

	

	

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