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
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
Metrics
Affected Vendors & Products
No data.
No data.
No data.
No data.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 24 Sep 2025 11:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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 | |
| Title | wifi: ath12k: fix memory leak in ath12k_service_ready_ext_event | |
| References |
|
MITRE
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-09-24T11:02:53.539Z
Reserved: 2025-04-16T07:20:57.145Z
Link: CVE-2025-39890
Vulnrichment
No data.
NVD
Status : Received
Published: 2025-09-24T11:15:32.920
Modified: 2025-09-24T11:15:32.920
Link: CVE-2025-39890
Redhat
No data.
OpenCVE Enrichment
No data.