{"id":"CVE-2026-74410","revision":"295271b4cebf4a4ebe473634acc14f87","records":[{"revision":"295271b4cebf4a4ebe473634acc14f87","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-74410","aliases":[],"title":"wifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: fix OOB read from firmware RX descriptor exceeding DMA buffer\n\nIn rtw_pci_rx_napi(), new_len is computed as the sum of pkt_len (14-bit\ndescriptor field, max 16383) and pkt_offset (drv_info_sz + shift, both\nfirmware-controlled). The result can exceed RTK_PCI_RX_BUF_SIZE (11478),\ncausing an out-of-bounds read from the pre-allocated DMA buffer when\nskb_put_data copies new_len bytes. The USB transport already validates\nthis (rtw_usb_rx_data_put checks against RTW_USB_MAX_RECVBUF_SZ); the\nPCIe path does not.\n\nAdd a check that new_len does not exceed the DMA buffer size.","state":0,"publishedAt":"2026-08-15T05:59:18.039+00:00","modifiedAt":"2026-10-16T19:05:43.968+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/realtek/rtw88/pci.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"e3037485c68ec1a299ff41160d8fedbd4abc29b9\",\n                            \"lessThan\": \"913bd7d3d3d842b5c1d2b908a0201efa8fc79793\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e3037485c68ec1a299ff41160d8fedbd4abc29b9\",\n                            \"lessThan\": \"45abc14ab3f15da7d689f1a8809c1a01240a94d9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e3037485c68ec1a299ff41160d8fedbd4abc29b9\",\n                            \"lessThan\": \"08193e733e5d4790e6c937af86d78793b02709be\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e3037485c68ec1a299ff41160d8fedbd4abc29b9\",\n                            \"lessThan\": \"6a3c384393d3f0b41669ed5a2e88744aad9d87c8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e3037485c68ec1a299ff41160d8fedbd4abc29b9\",\n                            \"lessThan\": \"26c183a86ea4dd1f2ff90c6f783649e7f5722a10\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e3037485c68ec1a299ff41160d8fedbd4abc29b9\",\n                            \"lessThan\": \"01155ded5d4dad61840a9a3c33ab56778ef1f100\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e3037485c68ec1a299ff41160d8fedbd4abc29b9\",\n                            \"lessThan\": \"1554fa522f16ec7c5c342ad33fe734eeb6eb2452\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e3037485c68ec1a299ff41160d8fedbd4abc29b9\",\n                            \"lessThan\": \"6e76e9ed273dfb4b3333a5ebbb94958cc5752ab6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/realtek/rtw88/pci.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.2\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.261\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.212\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.178\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.145\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.97\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.40\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","score":8.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/913bd7d3d3d842b5c1d2b908a0201efa8fc79793","https://git.kernel.org/stable/c/45abc14ab3f15da7d689f1a8809c1a01240a94d9","https://git.kernel.org/stable/c/08193e733e5d4790e6c937af86d78793b02709be","https://git.kernel.org/stable/c/6a3c384393d3f0b41669ed5a2e88744aad9d87c8","https://git.kernel.org/stable/c/26c183a86ea4dd1f2ff90c6f783649e7f5722a10","https://git.kernel.org/stable/c/01155ded5d4dad61840a9a3c33ab56778ef1f100","https://git.kernel.org/stable/c/1554fa522f16ec7c5c342ad33fe734eeb6eb2452","https://git.kernel.org/stable/c/6e76e9ed273dfb4b3333a5ebbb94958cc5752ab6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74410","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74410","identifiers":["CVE-2026-74410"]},"retained":false,"historicalAffected":[]}],"coverage":[]}