{"id":"CVE-2023-53822","revision":"1c86cbf642e24ea7b61227763a5d0253","records":[{"revision":"1c86cbf642e24ea7b61227763a5d0253","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2023-53822","aliases":[],"title":"wifi: ath11k: Ignore frags from uninitialized peer in dp.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: Ignore frags from uninitialized peer in dp.\n\nWhen max virtual ap interfaces are configured in all the bands with\nACS and hostapd restart is done every 60s, a crash is observed at\nrandom times.\nIn this certain scenario, a fragmented packet is received for\nself peer, for which rx_tid and rx_frags are not initialized in\ndatapath. While handling this fragment, crash is observed as the\nrx_frag list is uninitialised and when we walk in\nath11k_dp_rx_h_sort_frags, skb null leads to exception.\n\nTo address this, before processing received fragments we check\ndp_setup_done flag is set to ensure that peer has completed its\ndp peer setup for fragment queue, else ignore processing the\nfragments.\n\nCall trace:\n  ath11k_dp_process_rx_err+0x550/0x1084 [ath11k]\n  ath11k_dp_service_srng+0x70/0x370 [ath11k]\n  0xffffffc009693a04\n  __napi_poll+0x30/0xa4\n  net_rx_action+0x118/0x270\n  __do_softirq+0x10c/0x244\n  irq_exit+0x64/0xb4\n  __handle_domain_irq+0x88/0xac\n  gic_handle_irq+0x74/0xbc\n  el1_irq+0xf0/0x1c0\n  arch_cpu_idle+0x10/0x18\n  do_idle+0x104/0x248\n  cpu_startup_entry+0x20/0x64\n  rest_init+0xd0/0xdc\n  arch_call_rest_init+0xc/0x14\n  start_kernel+0x480/0x4b8\n  Code: f9400281 f94066a2 91405021 b94a0023 (f9406401)\n\nTested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1","state":0,"publishedAt":"2025-12-09T01:29:35.206+00:00","modifiedAt":"2026-10-15T21:41:36.712+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/ath/ath11k/dp.c\",\n                        \"drivers/net/wireless/ath/ath11k/dp_rx.c\",\n                        \"drivers/net/wireless/ath/ath11k/peer.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"d5c65159f2895379e11ca13f62feabe93278985d\",\n                            \"lessThan\": \"e78526a06b53718bfc1dfff37864c7760e41f8ec\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d5c65159f2895379e11ca13f62feabe93278985d\",\n                            \"lessThan\": \"41efc47f5bc53e63461579e206adc17c4452ab6e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d5c65159f2895379e11ca13f62feabe93278985d\",\n                            \"lessThan\": \"a06bfb3c9f69f303692cdae87bc0899d2ae8b2a6\",\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/ath/ath11k/dp.c\",\n                        \"drivers/net/wireless/ath/ath11k/dp_rx.c\",\n                        \"drivers/net/wireless/ath/ath11k/peer.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.30\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.3.4\",\n                            \"lessThanOrEqual\": \"6.3.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.4\",\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:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/e78526a06b53718bfc1dfff37864c7760e41f8ec","https://git.kernel.org/stable/c/41efc47f5bc53e63461579e206adc17c4452ab6e","https://git.kernel.org/stable/c/a06bfb3c9f69f303692cdae87bc0899d2ae8b2a6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53822","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-53822","identifiers":["CVE-2023-53822"]},"retained":false,"historicalAffected":[]}],"coverage":[]}