{"id":"CVE-2025-39890","title":"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 ca…","summary":"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 ca…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-401","CWE-401"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 6.3, < 6.6.94","linux_kernel >= 6.7, < 6.12.34","linux_kernel >= 6.13, < 6.15.3"],"patched":["linux_kernel 6.15.3"],"published":"2025-09-24","updated":"2026-09-26","sourceUpdated":"2026-09-26T00:10:00.127","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-39890","references":[{"url":"https://git.kernel.org/stable/c/1089f65b2de78c7837ef6b4f26146a5a5b0b9749","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3a392f874ac83a77ad0e53eb8aafdbeb787c9298","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/89142d34d5602c7447827beb181fa06eb08b9d5c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/99dbad1b01d3b2f361a9db55c1af1212be497a3d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00145,"epssPercentile":0.03128,"ingestedAt":"2026-09-26T00:22:39.951Z","slug":"CVE-2025-39890","body":"## Overview\n\nIn 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\n\n## Affected\n\n- `linux_kernel >= 6.3, < 6.6.94`\n- `linux_kernel >= 6.7, < 6.12.34`\n- `linux_kernel >= 6.13, < 6.15.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.15.3`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}