CVE-2025-39890 (GCVE-0-2025-39890)

Vulnerability from cvelistv5 – Published: 2025-09-24 11:02 – Updated: 2026-01-14 17:35
VLAI?
Title
wifi: ath12k: fix memory leak in ath12k_service_ready_ext_event
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix memory leak in ath12k_service_ready_ext_event Currently, in ath12k_service_ready_ext_event(), svc_rdy_ext.mac_phy_caps is not freed in the failure case, causing a memory leak. The following trace is observed in kmemleak: unreferenced object 0xffff8b3eb5789c00 (size 1024): comm "softirq", pid 0, jiffies 4294942577 hex dump (first 32 bytes): 00 00 00 00 01 00 00 00 00 00 00 00 7b 00 00 10 ............{... 01 00 00 00 00 00 00 00 01 00 00 00 1f 38 00 00 .............8.. backtrace (crc 44e1c357): __kmalloc_noprof+0x30b/0x410 ath12k_wmi_mac_phy_caps_parse+0x84/0x100 [ath12k] ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k] ath12k_wmi_svc_rdy_ext_parse+0x308/0x4c0 [ath12k] ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k] ath12k_service_ready_ext_event.isra.0+0x44/0xd0 [ath12k] ath12k_wmi_op_rx+0x2eb/0xd70 [ath12k] ath12k_htc_rx_completion_handler+0x1f4/0x330 [ath12k] ath12k_ce_recv_process_cb+0x218/0x300 [ath12k] ath12k_pci_ce_workqueue+0x1b/0x30 [ath12k] process_one_work+0x219/0x680 bh_worker+0x198/0x1f0 tasklet_action+0x13/0x30 handle_softirqs+0xca/0x460 __irq_exit_rcu+0xbe/0x110 irq_exit_rcu+0x9/0x30 Free svc_rdy_ext.mac_phy_caps in the error case to fix this memory leak. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 99dbad1b01d3b2f361a9db55c1af1212be497a3d (git)
Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 3a392f874ac83a77ad0e53eb8aafdbeb787c9298 (git)
Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 1089f65b2de78c7837ef6b4f26146a5a5b0b9749 (git)
Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 89142d34d5602c7447827beb181fa06eb08b9d5c (git)
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    Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.94 , ≤ 6.6.* (semver)
Unaffected: 6.12.34 , ≤ 6.12.* (semver)
Unaffected: 6.15.3 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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The following\\ntrace is observed in kmemleak:\\n\\nunreferenced object 0xffff8b3eb5789c00 (size 1024):\\n comm \\\"softirq\\\", pid 0, jiffies 4294942577\\n hex dump (first 32 bytes):\\n   00 00 00 00 01 00 00 00 00 00 00 00 7b 00 00 10  ............{...\\n   01 00 00 00 00 00 00 00 01 00 00 00 1f 38 00 00  .............8..\\n backtrace (crc 44e1c357):\\n   __kmalloc_noprof+0x30b/0x410\\n   ath12k_wmi_mac_phy_caps_parse+0x84/0x100 [ath12k]\\n   ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k]\\n   ath12k_wmi_svc_rdy_ext_parse+0x308/0x4c0 [ath12k]\\n   ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k]\\n   ath12k_service_ready_ext_event.isra.0+0x44/0xd0 [ath12k]\\n   ath12k_wmi_op_rx+0x2eb/0xd70 [ath12k]\\n   ath12k_htc_rx_completion_handler+0x1f4/0x330 [ath12k]\\n   ath12k_ce_recv_process_cb+0x218/0x300 [ath12k]\\n   ath12k_pci_ce_workqueue+0x1b/0x30 [ath12k]\\n   process_one_work+0x219/0x680\\n   bh_worker+0x198/0x1f0\\n   tasklet_action+0x13/0x30\\n   handle_softirqs+0xca/0x460\\n   __irq_exit_rcu+0xbe/0x110\\n   irq_exit_rcu+0x9/0x30\\n\\nFree svc_rdy_ext.mac_phy_caps in the error case to fix this memory leak.\\n\\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.94\", \"versionStartIncluding\": \"6.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.34\", \"versionStartIncluding\": \"6.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.15.3\", \"versionStartIncluding\": \"6.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.16\", \"versionStartIncluding\": \"6.3\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-09-24T11:02:53.539Z\"}}}",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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