{"api_version":"1","generated_at":"2026-08-16T03:54:03+00:00","cve":"CVE-2026-68355","urls":{"html":"https://cve.report/CVE-2026-68355","api":"https://cve.report/api/cve/CVE-2026-68355.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-68355","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68355"},"summary":{"title":"wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()\n\nWhen the first entry in msdu_details has a zero buffer address,\nthe code accesses msdu_details[i - 1] with i == 0, causing a\nbuffer underflow.\n\nFix similarly to ath12k_wifi7_hal_rx_msdu_list_get() by adding\na separate check for i == 0 before the main condition to prevent\nthe out-of-bounds access.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-10 13:20:27","updated_at":"2026-08-10 13:20:27"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5","name":"https://git.kernel.org/stable/c/725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a","name":"https://git.kernel.org/stable/c/69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7f11e70629650ff6ea140984e5ce188b775b2683","name":"https://git.kernel.org/stable/c/7f11e70629650ff6ea140984e5ce188b775b2683","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/904367381a922aa2dc3e8bd2488e6c9180516c7a","name":"https://git.kernel.org/stable/c/904367381a922aa2dc3e8bd2488e6c9180516c7a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a154ca3c441a67d36b3a9ea63a4f11b06abe6223","name":"https://git.kernel.org/stable/c/a154ca3c441a67d36b3a9ea63a4f11b06abe6223","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68355","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68355","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d5c65159f2895379e11ca13f62feabe93278985d 69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d5c65159f2895379e11ca13f62feabe93278985d 904367381a922aa2dc3e8bd2488e6c9180516c7a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d5c65159f2895379e11ca13f62feabe93278985d a154ca3c441a67d36b3a9ea63a4f11b06abe6223 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d5c65159f2895379e11ca13f62feabe93278985d 725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d5c65159f2895379e11ca13f62feabe93278985d 7f11e70629650ff6ea140984e5ce188b775b2683 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.6","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.6 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.148 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.101 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.42 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.6 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc5 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/wireless/ath/ath11k/dp_rx.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a","status":"affected","version":"d5c65159f2895379e11ca13f62feabe93278985d","versionType":"git"},{"lessThan":"904367381a922aa2dc3e8bd2488e6c9180516c7a","status":"affected","version":"d5c65159f2895379e11ca13f62feabe93278985d","versionType":"git"},{"lessThan":"a154ca3c441a67d36b3a9ea63a4f11b06abe6223","status":"affected","version":"d5c65159f2895379e11ca13f62feabe93278985d","versionType":"git"},{"lessThan":"725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5","status":"affected","version":"d5c65159f2895379e11ca13f62feabe93278985d","versionType":"git"},{"lessThan":"7f11e70629650ff6ea140984e5ce188b775b2683","status":"affected","version":"d5c65159f2895379e11ca13f62feabe93278985d","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/ath/ath11k/dp_rx.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.6"},{"lessThan":"5.6","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.148","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.101","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.42","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc5","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.148","versionStartIncluding":"5.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.101","versionStartIncluding":"5.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.42","versionStartIncluding":"5.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.6","versionStartIncluding":"5.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc5","versionStartIncluding":"5.6","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()\n\nWhen the first entry in msdu_details has a zero buffer address,\nthe code accesses msdu_details[i - 1] with i == 0, causing a\nbuffer underflow.\n\nFix similarly to ath12k_wifi7_hal_rx_msdu_list_get() by adding\na separate check for i == 0 before the main condition to prevent\nthe out-of-bounds access.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."}],"providerMetadata":{"dateUpdated":"2026-08-10T12:03:32.321Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a"},{"url":"https://git.kernel.org/stable/c/904367381a922aa2dc3e8bd2488e6c9180516c7a"},{"url":"https://git.kernel.org/stable/c/a154ca3c441a67d36b3a9ea63a4f11b06abe6223"},{"url":"https://git.kernel.org/stable/c/725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5"},{"url":"https://git.kernel.org/stable/c/7f11e70629650ff6ea140984e5ce188b775b2683"}],"title":"wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-68355","datePublished":"2026-08-10T12:03:32.321Z","dateReserved":"2026-07-30T09:28:09.385Z","dateUpdated":"2026-08-10T12:03:32.321Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-10 13:20:27","lastModifiedDate":"2026-08-10 13:20:27","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"68355","Ordinal":"1","Title":"wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_ms","CVE":"CVE-2026-68355","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"68355","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()\n\nWhen the first entry in msdu_details has a zero buffer address,\nthe code accesses msdu_details[i - 1] with i == 0, causing a\nbuffer underflow.\n\nFix similarly to ath12k_wifi7_hal_rx_msdu_list_get() by adding\na separate check for i == 0 before the main condition to prevent\nthe out-of-bounds access.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.","Type":"Description","Title":"wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_ms"}]}}}