CVE-2026-68355

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{"affected": [{"affectedData": [{"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": "085a5fde5bac29c01059e69399b417e91c0a6c18", "status": "affected", "version": "d5c65159f2895379e11ca13f62feabe93278985d", "versionType": "git"}, {"lessThan": "31ea4b175bc3ab430be15834d9ee8a1ce65bee15", "status": "affected", "version": "d5c65159f2895379e11ca13f62feabe93278985d", "versionType": "git"}, {"lessThan": "20d18a5ec6ec364fcaf0d03af6fc43dcc42c6591", "status": "affected", "version": "d5c65159f2895379e11ca13f62feabe93278985d", "versionType": "git"}, {"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": "5.10.*", "status": "unaffected", "version": "5.10.265", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "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", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-68355", "lastModified": "2026-11-06T17:19:30.310", "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-68355", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T16:48:00.630554Z", "version": "2.0.3"}}]}, "published": "2026-08-10T13:20:27.940", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/085a5fde5bac29c01059e69399b417e91c0a6c18"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/20d18a5ec6ec364fcaf0d03af6fc43dcc42c6591"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/31ea4b175bc3ab430be15834d9ee8a1ce65bee15"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7f11e70629650ff6ea140984e5ce188b775b2683"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/904367381a922aa2dc3e8bd2488e6c9180516c7a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a154ca3c441a67d36b3a9ea63a4f11b06abe6223"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()", "id": "2513485", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513485"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-124", "details": ["A flaw was found in the ath11k component of the Linux kernel. When processing Wi-Fi (wireless fidelity) data, a specific function can attempt to access memory outside of its allocated buffer. This buffer underflow occurs if the first entry in a data structure has a zero buffer address, leading to an out-of-bounds read. This could potentially lead to system instability or a denial of service (DoS)."], "name": "CVE-2026-68355", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68355\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68355\nhttps://lore.kernel.org/linux-cve-announce/2026081040-CVE-2026-68355-e340@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5c65159f2895379e11ca13f62feabe93278985d,69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5c65159f2895379e11ca13f62feabe93278985d,904367381a922aa2dc3e8bd2488e6c9180516c7a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5c65159f2895379e11ca13f62feabe93278985d,a154ca3c441a67d36b3a9ea63a4f11b06abe6223)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5c65159f2895379e11ca13f62feabe93278985d,725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5c65159f2895379e11ca13f62feabe93278985d,7f11e70629650ff6ea140984e5ce188b775b2683)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.6"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.6)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc5,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-10T16:45:03.476829+00:00", "updated": "2026-08-13T04:00:09.648245+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}