--- id: CVE-2024-26873 title: 'scsi: hisi_sas: Fix a deadlock issue related to automatic dump' summary: |- 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 o… severity: none vendor: Linux product: Linux affected: - >- Linux >= 9b31409715ce2745fdf3d8afad66bee4b2b7867a < 384f907946abe091da6ebcd65a15315896fb366c - >- Linux >= 91e035e98fa1383ca90d774c29bb14c3c5ed2d8c < a47f0b03149af538af4442ff0702eac430ace1cb - >- Linux >= 2ff07b5c6fe9173e7a7de3b23f300d71ad4d8fde < e022dd3b875315a2d2001a512e98d1dc8c991f4a - >- Linux >= 2ff07b5c6fe9173e7a7de3b23f300d71ad4d8fde < 85c98073ffcfe9e46abfb9c66f3364467119d563 - >- Linux >= 2ff07b5c6fe9173e7a7de3b23f300d71ad4d8fde < 3c4f53b2c341ec6428b98cb51a89a09b025d0953 - Linux 6.7 ssvc: exploitation: none automatable: 'no' technicalImpact: partial timestamp: '2024-04-23T14:02:10.417549Z' published: '2024-04-17' updated: '2026-10-30' sourceUpdated: '2026-10-30T12:17:56.908Z' source: CVEORG sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2024-26873' references: - url: 'https://git.kernel.org/stable/c/384f907946abe091da6ebcd65a15315896fb366c' - url: 'https://git.kernel.org/stable/c/a47f0b03149af538af4442ff0702eac430ace1cb' - url: 'https://git.kernel.org/stable/c/e022dd3b875315a2d2001a512e98d1dc8c991f4a' - url: 'https://git.kernel.org/stable/c/85c98073ffcfe9e46abfb9c66f3364467119d563' - url: 'https://git.kernel.org/stable/c/3c4f53b2c341ec6428b98cb51a89a09b025d0953' tags: - cve.org epss: 0.00171 epssPercentile: 0.06476 ingestedAt: '2026-11-03T12:44:28.799Z' --- ## Overview 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--- ## Affected - `Linux >= 9b31409715ce2745fdf3d8afad66bee4b2b7867a < 384f907946abe091da6ebcd65a15315896fb366c` - `Linux >= 91e035e98fa1383ca90d774c29bb14c3c5ed2d8c < a47f0b03149af538af4442ff0702eac430ace1cb` - `Linux >= 2ff07b5c6fe9173e7a7de3b23f300d71ad4d8fde < e022dd3b875315a2d2001a512e98d1dc8c991f4a` - `Linux >= 2ff07b5c6fe9173e7a7de3b23f300d71ad4d8fde < 85c98073ffcfe9e46abfb9c66f3364467119d563` - `Linux >= 2ff07b5c6fe9173e7a7de3b23f300d71ad4d8fde < 3c4f53b2c341ec6428b98cb51a89a09b025d0953` - `Linux 6.7` ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges.