7.8

CVE-2025-38116

In the Linux kernel, the following vulnerability has been resolved:

wifi: ath12k: fix uaf in ath12k_core_init()

When the execution of ath12k_core_hw_group_assign() or
ath12k_core_hw_group_create() fails, the registered notifier chain is not
unregistered properly. Its memory is freed after rmmod, which may trigger
to a use-after-free (UAF) issue if there is a subsequent access to this
notifier chain.

Fixes the issue by calling ath12k_core_panic_notifier_unregister() in
failure cases.

Call trace:
 notifier_chain_register+0x4c/0x1f0 (P)
 atomic_notifier_chain_register+0x38/0x68
 ath12k_core_init+0x50/0x4e8 [ath12k]
 ath12k_pci_probe+0x5f8/0xc28 [ath12k]
 pci_device_probe+0xbc/0x1a8
 really_probe+0xc8/0x3a0
 __driver_probe_device+0x84/0x1b0
 driver_probe_device+0x44/0x130
 __driver_attach+0xcc/0x208
 bus_for_each_dev+0x84/0x100
 driver_attach+0x2c/0x40
 bus_add_driver+0x130/0x260
 driver_register+0x70/0x138
 __pci_register_driver+0x68/0x80
 ath12k_pci_init+0x30/0x68 [ath12k]
 ath12k_init+0x28/0x78 [ath12k]

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
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Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.14 < 6.15.3
Linux ≫ Linux Kernel Version6.16 Updaterc1
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.043
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.