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CVE-2025-22014— soc: qcom: pdr: Fix the potential deadlock

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于pdr服务处理时存在死锁风险，可能导致服务请求处理失败。

AI Predicted 5.5 Difficulty: Hard EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1059.004 · Unix Shell

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux fbe639b44a82755d639df1c5d147c93f02ac5a0f< 72a222b6af10c2a05a5fad0029246229ed8912c2 affected
fbe639b44a82755d639df1c5d147c93f02ac5a0f< daba84612236de3ab39083e62c9e326a654ebd20 affected
fbe639b44a82755d639df1c5d147c93f02ac5a0f< 0a566a79aca9851fae140536e0fc5b0853c90a90 affected
fbe639b44a82755d639df1c5d147c93f02ac5a0f< f2bbfd50e95bc117360f0f59e629aa03d821ebd6 affected
fbe639b44a82755d639df1c5d147c93f02ac5a0f< f4489260f5713c94e1966e5f20445bff262876f4 affected
fbe639b44a82755d639df1c5d147c93f02ac5a0f< 02612f1e4c34d94d6c8ee75bf7d254ed697e22d4 affected
fbe639b44a82755d639df1c5d147c93f02ac5a0f< 2eeb03ad9f42dfece63051be2400af487ddb96d2 affected
5.7 affected
… +8 more rows
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I. Basic Information for CVE-2025-22014

Vulnerability Information
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Vulnerability Title
soc: qcom: pdr: Fix the potential deadlock
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: soc: qcom: pdr: Fix the potential deadlock When some client process A call pdr_add_lookup() to add the look up for the service and does schedule locator work, later a process B got a new server packet indicating locator is up and call pdr_locator_new_server() which eventually sets pdr->locator_init_complete to true which process A sees and takes list lock and queries domain list but it will timeout due to deadlock as the response will queued to the same qmi->wq and it is ordered workqueue and process B is not able to complete new server request work due to deadlock on list lock. Fix it by removing the unnecessary list iteration as the list iteration is already being done inside locator work, so avoid it here and just call schedule_work() here. Process A Process B process_scheduled_works() pdr_add_lookup() qmi_data_ready_work() process_scheduled_works() pdr_locator_new_server() pdr->locator_init_complete=true; pdr_locator_work() mutex_lock(&pdr->list_lock); pdr_locate_service() mutex_lock(&pdr->list_lock); pdr_get_domain_list() pr_err("PDR: %s get domain list txn wait failed: %d\n", req->service_name, ret); Timeout error log due to deadlock: " PDR: tms/servreg get domain list txn wait failed: -110 PDR: service lookup for msm/adsp/sensor_pd:tms/servreg failed: -110 " Thanks to Bjorn and Johan for letting me know that this commit also fixes an audio regression when using the in-kernel pd-mapper as that makes it easier to hit this race. [1]
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于pdr服务处理时存在死锁风险，可能导致服务请求处理失败。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux fbe639b44a82755d639df1c5d147c93f02ac5a0f ~ 72a222b6af10c2a05a5fad0029246229ed8912c2 -
Linux Linux 5.7 -

II. Public POCs for CVE-2025-22014

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III. Intelligence Information for CVE-2025-22014

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Same Patch Batch · Linux · 2025-04-08 · 10 CVEs total

CVE-2025-22012 8.8 HIGH Revert "arm64: dts: qcom: sdm845: Affirm IDR0.CCTW on apps_smmu"
CVE-2025-22015 7.8 HIGH mm/migrate: fix shmem xarray update during migration
CVE-2025-22013 7.3 HIGH KVM: arm64: Unconditionally save+flush host FPSIMD/SVE/SME state
CVE-2025-22017 devlink: fix xa_alloc_cyclic() error handling
CVE-2025-22016 dpll: fix xa_alloc_cyclic() error handling
CVE-2025-22011 ARM: dts: bcm2711: Fix xHCI power-domain
CVE-2025-22010 RDMA/hns: Fix soft lockup during bt pages loop
CVE-2025-22009 regulator: dummy: force synchronous probing
CVE-2025-22008 regulator: check that dummy regulator has been probed before using it

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-22014

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