CVE-2023-54000 | THREATINT

Description

In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix deadlock issue when externel_lb and reset are executed together When externel_lb and reset are executed together, a deadlock may occur: [ 3147.217009] INFO: task kworker/u321:0:7 blocked for more than 120 seconds. [ 3147.230483] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 3147.238999] task:kworker/u321:0 state:D stack: 0 pid: 7 ppid: 2 flags:0x00000008 [ 3147.248045] Workqueue: hclge hclge_service_task [hclge] [ 3147.253957] Call trace: [ 3147.257093] __switch_to+0x7c/0xbc [ 3147.261183] __schedule+0x338/0x6f0 [ 3147.265357] schedule+0x50/0xe0 [ 3147.269185] schedule_preempt_disabled+0x18/0x24 [ 3147.274488] __mutex_lock.constprop.0+0x1d4/0x5dc [ 3147.279880] __mutex_lock_slowpath+0x1c/0x30 [ 3147.284839] mutex_lock+0x50/0x60 [ 3147.288841] rtnl_lock+0x20/0x2c [ 3147.292759] hclge_reset_prepare+0x68/0x90 [hclge] [ 3147.298239] hclge_reset_subtask+0x88/0xe0 [hclge] [ 3147.303718] hclge_reset_service_task+0x84/0x120 [hclge] [ 3147.309718] hclge_service_task+0x2c/0x70 [hclge] [ 3147.315109] process_one_work+0x1d0/0x490 [ 3147.319805] worker_thread+0x158/0x3d0 [ 3147.324240] kthread+0x108/0x13c [ 3147.328154] ret_from_fork+0x10/0x18 In externel_lb process, the hns3 driver call napi_disable() first, then the reset happen, then the restore process of the externel_lb will fail, and will not call napi_enable(). When doing externel_lb again, napi_disable() will be double call, cause a deadlock of rtnl_lock(). This patch use the HNS3_NIC_STATE_DOWN state to protect the calling of napi_disable() and napi_enable() in externel_lb process, just as the usage in ndo_stop() and ndo_start().

PUBLISHED Reserved 2025-12-24 | Published 2025-12-24 | Updated 2025-12-24 | Assigner Linux

Product status

Default status

unaffected

85fc1d802edf36123ae1bd0a13892bb3772c197f (git) before d9f609cb50ebab4aa6341112f406bf9d3928ac81

affected

04b6ba143521f4485b7f2c36c655b262a79dae97 (git) before 743f7c1762e098048ede8cdf8c89a118f8d12391

affected

04b6ba143521f4485b7f2c36c655b262a79dae97 (git) before ef2d6bf9695669d31ece9f2ef39dec84874a87c7

affected

04b6ba143521f4485b7f2c36c655b262a79dae97 (git) before ac6257a3ae5db5193b1f19c268e4f72d274ddb88

affected

Default status

affected

6.1

affected

Any version before 6.1

unaffected

6.1.46 (semver)

unaffected

6.4.11 (semver)

unaffected

6.5 (original_commit_for_fix)

unaffected

References

git.kernel.org/...c/d9f609cb50ebab4aa6341112f406bf9d3928ac81

git.kernel.org/...c/743f7c1762e098048ede8cdf8c89a118f8d12391

git.kernel.org/...c/ef2d6bf9695669d31ece9f2ef39dec84874a87c7

git.kernel.org/...c/ac6257a3ae5db5193b1f19c268e4f72d274ddb88

cve.org (CVE-2023-54000)

nvd.nist.gov (CVE-2023-54000)

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