{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-37943","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T04:51:23.972Z","datePublished":"2025-05-20T15:58:19.607Z","dateUpdated":"2026-08-05T11:58:31.647Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T11:58:31.647Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi\n\nIn certain cases, hardware might provide packets with a\nlength greater than the maximum native Wi-Fi header length.\nThis can lead to accessing and modifying fields in the header\nwithin the ath12k_dp_rx_h_undecap_nwifi function for\nDP_RX_DECAP_TYPE_NATIVE_WIFI decap type and\npotentially resulting in invalid data access and memory corruption.\n\nAdd a sanity check before processing the SKB to prevent invalid\ndata access in the undecap native Wi-Fi function for the\nDP_RX_DECAP_TYPE_NATIVE_WIFI decap type.\n\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:A - The vulnerable code is the ath12k 802.11 receive path, triggered by a crafted 4-address QoS data frame with the Order bit set that is injected over the air; the attacker must be within Wi-Fi radio range of the target radio. Per kernel guidance, WiFi frame injection is Adjacent.\nAC:L - The attacker fully controls the frame_control field and header contents of the injected frame and can retransmit indefinitely until it lands in the native-Wi-Fi decap or WBM error path; no condition outside the attacker's control is required, and the ath11k twin fix documents real observed stack corruption from this exact path.\nPR:N - No authentication or association is needed — the frame only has to pass the hardware address filter, and the patched null_q_desc/tkip_mic_err error paths specifically handle frames with no peer and no REO queue (ath12k_dp_rx_h_mpdu falls back to HAL_ENCRYPT_TYPE_OPEN when peer lookup fails).\nUI:N - The corruption happens in the NAPI receive path as soon as the frame is processed; no victim action is required beyond having the wireless interface up.\nS:U - The out-of-bounds write corrupts the kernel stack of the receiving host, staying within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The trailing memcpy reads up to 36 bytes from the 30-byte stack array and copies the result into the skb that is delivered to mac80211 (and forwarded in AP/mesh mode), leaking adjacent kernel stack and stale DMA buffer contents; the attacker-controlled stack corruption is further leverageable as a memory-disclosure primitive.\nI:H - Up to 6 bytes of attacker-chosen 802.11 header data are written past a 30-byte stack buffer, overwriting adjacent locals, the stack canary, or saved registers — an out-of-bounds write with controlled content that is a control-flow-hijack primitive.\nA:H - Kernel stack corruption reliably produces a panic via __stack_chk_fail or FORTIFY_SOURCE, and the mishandled skb_pull/skb_push can trigger skb_under_panic; the ath11k report confirms an observed \"Kernel stack is corrupted\" crash."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/ath12k/dp_rx.c"],"versions":[{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","lessThan":"7f1d986da5c6abb75ffe4d0d325fc9b341c41a1c","status":"affected","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","lessThan":"3abe15e756481c45f6acba3d476cb3ca4afc3b61","status":"affected","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","lessThan":"6ee653194ddb83674913fd2727b8ecfae0597ade","status":"affected","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","lessThan":"50be1fb76556e80af9f5da80f28168b6c71bce58","status":"affected","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","lessThan":"9a0dddfb30f120db3851627935851d262e4e7acb","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/ath12k/dp_rx.c"],"versions":[{"version":"6.3","status":"affected"},{"version":"0","lessThan":"6.3","status":"unaffected","versionType":"semver"},{"version":"6.6.88","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.24","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.13.12","lessThanOrEqual":"6.13.*","status":"unaffected","versionType":"semver"},{"version":"6.14.3","lessThanOrEqual":"6.14.*","status":"unaffected","versionType":"semver"},{"version":"6.15","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.6.88"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.12.24"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.13.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.14.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.15"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/7f1d986da5c6abb75ffe4d0d325fc9b341c41a1c"},{"url":"https://git.kernel.org/stable/c/3abe15e756481c45f6acba3d476cb3ca4afc3b61"},{"url":"https://git.kernel.org/stable/c/6ee653194ddb83674913fd2727b8ecfae0597ade"},{"url":"https://git.kernel.org/stable/c/50be1fb76556e80af9f5da80f28168b6c71bce58"},{"url":"https://git.kernel.org/stable/c/9a0dddfb30f120db3851627935851d262e4e7acb"}],"title":"wifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi","x_generator":{"engine":"bippy-1.2.0"}}}}