ghsa-5cg2-hfc8-xx57
Vulnerability from github
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
{
"affected": [],
"aliases": [
"CVE-2025-39890"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-24T11:15:32Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix memory leak in ath12k_service_ready_ext_event\n\nCurrently, in ath12k_service_ready_ext_event(), svc_rdy_ext.mac_phy_caps\nis not freed in the failure case, causing a memory leak. 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",
"id": "GHSA-5cg2-hfc8-xx57",
"modified": "2025-09-24T12:30:20Z",
"published": "2025-09-24T12:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39890"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1089f65b2de78c7837ef6b4f26146a5a5b0b9749"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3a392f874ac83a77ad0e53eb8aafdbeb787c9298"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/89142d34d5602c7447827beb181fa06eb08b9d5c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/99dbad1b01d3b2f361a9db55c1af1212be497a3d"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
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