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CVE-2025-68182— wifi: iwlwifi: fix potential use after free in iwl_mld_remove_link()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于iwl_mld_remove_link中释放后使用link->fw_id，可能导致内存损坏。

CVSS 7.5 · High EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux d1e879ec600f9b3bdd253167533959facfefb17b< 5b4a239c9f94e1606435f1842fc6fd426d607dbb affected
d1e879ec600f9b3bdd253167533959facfefb17b< 77e67d5daaf155f7d0f99f4e797c4842169ec19e affected
6.15 affected
< 6.15 unaffected
6.17.8≤ 6.17.* unaffected
6.18≤ * unaffected
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I. Basic Information for CVE-2025-68182

Vulnerability Information
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Vulnerability Title
wifi: iwlwifi: fix potential use after free in iwl_mld_remove_link()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: fix potential use after free in iwl_mld_remove_link() This code frees "link" by calling kfree_rcu(link, rcu_head) and then it dereferences "link" to get the "link->fw_id". Save the "link->fw_id" first to avoid a potential use after free.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于iwl_mld_remove_link中释放后使用link->fw_id，可能导致内存损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux d1e879ec600f9b3bdd253167533959facfefb17b ~ 5b4a239c9f94e1606435f1842fc6fd426d607dbb -
Linux Linux 6.15 -

II. Public POCs for CVE-2025-68182

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III. Intelligence Information for CVE-2025-68182

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Other References for CVE-2025-68182 (2)

Same Patch Batch · Linux · 2025-12-16 · 156 CVEs total

CVE-2025-68192 9.8 CRITICAL net: usb: qmi_wwan: initialize MAC header offset in qmimux_rx_fixup
CVE-2025-68301 9.8 CRITICAL net: atlantic: fix fragment overflow handling in RX path
CVE-2025-40350 9.8 CRITICAL net/mlx5e: RX, Fix generating skb from non-linear xdp_buff for striding RQ
CVE-2025-68284 9.8 CRITICAL libceph: prevent potential out-of-bounds writes in handle_auth_session_key()
CVE-2025-68285 9.8 CRITICAL libceph: fix potential use-after-free in have_mon_and_osd_map()
CVE-2025-68263 9.8 CRITICAL ksmbd: ipc: fix use-after-free in ipc_msg_send_request
CVE-2025-68315 9.8 CRITICAL f2fs: fix to detect potential corrupted nid in free_nid_list
CVE-2025-68304 8.8 HIGH Bluetooth: hci_core: lookup hci_conn on RX path on protocol side
CVE-2025-68256 8.8 HIGH staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser
CVE-2025-68255 8.8 HIGH staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing
CVE-2025-68226 8.8 HIGH smb: client: fix incomplete backport in cfids_invalidation_worker()
CVE-2025-40362 8.8 HIGH ceph: fix multifs mds auth caps issue
CVE-2025-68314 8.8 HIGH drm/msm: make sure last_fence is always updated
CVE-2025-68250 8.2 HIGH hung_task: fix warnings caused by unaligned lock pointers
CVE-2025-68260 7.8 HIGH rust_binder: fix race condition on death_list
CVE-2025-68175 7.8 HIGH media: nxp: imx8-isi: Fix streaming cleanup on release
CVE-2025-68179 7.8 HIGH s390: Disable ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
CVE-2025-68294 7.8 HIGH io_uring/net: ensure vectored buffer node import is tied to notification
CVE-2025-68303 7.8 HIGH platform/x86: intel: punit_ipc: fix memory corruption
CVE-2025-68234 7.8 HIGH io_uring/cmd_net: fix wrong argument types for skb_queue_splice()

Showing top 20 of 156 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-68182

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