ghsa-4gqc-44f8-fcvg
Vulnerability from github
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": [],
"aliases": [
"CVE-2024-26873"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-17T11:15:09Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: hisi_sas: Fix a deadlock issue related to automatic dump\n\nIf we issue a disabling PHY command, the device attached with it will go\noffline, if a 2 bit ECC error occurs at the same time, a hung task may be\nfound:\n\n[ 4613.652388] INFO: task kworker/u256:0:165233 blocked for more than 120 seconds.\n[ 4613.666297] \"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n[ 4613.674809] task:kworker/u256:0 state:D stack: 0 pid:165233 ppid: 2 flags:0x00000208\n[ 4613.683959] Workqueue: 0000:74:02.0_disco_q sas_revalidate_domain [libsas]\n[ 4613.691518] Call trace:\n[ 4613.694678] __switch_to+0xf8/0x17c\n[ 4613.698872] __schedule+0x660/0xee0\n[ 4613.703063] schedule+0xac/0x240\n[ 4613.706994] schedule_timeout+0x500/0x610\n[ 4613.711705] __down+0x128/0x36c\n[ 4613.715548] down+0x240/0x2d0\n[ 4613.719221] hisi_sas_internal_abort_timeout+0x1bc/0x260 [hisi_sas_main]\n[ 4613.726618] sas_execute_internal_abort+0x144/0x310 [libsas]\n[ 4613.732976] sas_execute_internal_abort_dev+0x44/0x60 [libsas]\n[ 4613.739504] hisi_sas_internal_task_abort_dev.isra.0+0xbc/0x1b0 [hisi_sas_main]\n[ 4613.747499] hisi_sas_dev_gone+0x174/0x250 [hisi_sas_main]\n[ 4613.753682] sas_notify_lldd_dev_gone+0xec/0x2e0 [libsas]\n[ 4613.759781] sas_unregister_common_dev+0x4c/0x7a0 [libsas]\n[ 4613.765962] sas_destruct_devices+0xb8/0x120 [libsas]\n[ 4613.771709] sas_do_revalidate_domain.constprop.0+0x1b8/0x31c [libsas]\n[ 4613.778930] sas_revalidate_domain+0x60/0xa4 [libsas]\n[ 4613.784716] process_one_work+0x248/0x950\n[ 4613.789424] worker_thread+0x318/0x934\n[ 4613.793878] kthread+0x190/0x200\n[ 4613.797810] ret_from_fork+0x10/0x18\n[ 4613.802121] INFO: task kworker/u256:4:316722 blocked for more than 120 seconds.\n[ 4613.816026] \"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n[ 4613.824538] task:kworker/u256:4 state:D stack: 0 pid:316722 ppid: 2 flags:0x00000208\n[ 4613.833670] Workqueue: 0000:74:02.0 hisi_sas_rst_work_handler [hisi_sas_main]\n[ 4613.841491] Call trace:\n[ 4613.844647] __switch_to+0xf8/0x17c\n[ 4613.848852] __schedule+0x660/0xee0\n[ 4613.853052] schedule+0xac/0x240\n[ 4613.856984] schedule_timeout+0x500/0x610\n[ 4613.861695] __down+0x128/0x36c\n[ 4613.865542] down+0x240/0x2d0\n[ 4613.869216] hisi_sas_controller_prereset+0x58/0x1fc [hisi_sas_main]\n[ 4613.876324] hisi_sas_rst_work_handler+0x40/0x8c [hisi_sas_main]\n[ 4613.883019] process_one_work+0x248/0x950\n[ 4613.887732] worker_thread+0x318/0x934\n[ 4613.892204] kthread+0x190/0x200\n[ 4613.896118] ret_from_fork+0x10/0x18\n[ 4613.900423] INFO: task kworker/u256:1:348985 blocked for more than 121 seconds.\n[ 4613.914341] \"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n[ 4613.922852] task:kworker/u256:1 state:D stack: 0 pid:348985 ppid: 2 flags:0x00000208\n[ 4613.931984] Workqueue: 0000:74:02.0_event_q sas_port_event_worker [libsas]\n[ 4613.939549] Call trace:\n[ 4613.942702] __switch_to+0xf8/0x17c\n[ 4613.946892] __schedule+0x660/0xee0\n[ 4613.951083] schedule+0xac/0x240\n[ 4613.955015] schedule_timeout+0x500/0x610\n[ 4613.959725] wait_for_common+0x200/0x610\n[ 4613.964349] wait_for_completion+0x3c/0x5c\n[ 4613.969146] flush_workqueue+0x198/0x790\n[ 4613.973776] sas_porte_broadcast_rcvd+0x1e8/0x320 [libsas]\n[ 4613.979960] sas_port_event_worker+0x54/0xa0 [libsas]\n[ 4613.985708] process_one_work+0x248/0x950\n[ 4613.990420] worker_thread+0x318/0x934\n[ 4613.994868] kthread+0x190/0x200\n[ 4613.998800] ret_from_fork+0x10/0x18\n\nThis is because when the device goes offline, we obtain the hisi_hba\nsemaphore and send the ABORT_DEV command to the device. However, the\ninternal abort timed out due to the 2 bit ECC error and triggers automatic\ndump. In addition, since the hisi_hba semaphore has been obtained, the dump\ncannot be executed and the controller cannot be reset.\n\nTherefore, the deadlocks occur on the following circular dependencies\n---truncated---",
"id": "GHSA-4gqc-44f8-fcvg",
"modified": "2024-04-17T12:32:04Z",
"published": "2024-04-17T12:32:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26873"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3c4f53b2c341ec6428b98cb51a89a09b025d0953"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/85c98073ffcfe9e46abfb9c66f3364467119d563"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e022dd3b875315a2d2001a512e98d1dc8c991f4a"
}
],
"schema_version": "1.4.0",
"severity": []
}