{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68354", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.385Z", "datePublished": "2026-08-10T12:03:31.348Z", "dateUpdated": "2026-08-10T12:03:31.348Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-10T12:03:31.348Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirewire: net: Fix fragmented datagram reassembly\n\nfwnet_frag_new() keeps a sorted list of received fragments for a partial\ndatagram. When a new fragment is adjacent to an existing fragment, the\ncode checks whether the new fragment also closes the gap to the next or\nprevious list entry.\n\nThose neighbor lookups currently assume that the current fragment always\nhas a real next or previous fragment. At a list edge, the next or\nprevious entry is the list head, not a struct fwnet_fragment_info.\n\nThe gap checks also compare against the old edge of the current fragment\ninstead of the edge after adding the new fragment. As a result, a\nfragment that bridges two existing ranges may leave two adjacent ranges\nunmerged, so fwnet_pd_is_complete() can miss a complete datagram.\n\nCheck for the list head before looking up the neighboring fragment, and\ncompare the neighbor against the new fragment's far edge when deciding\nwhether to merge all three ranges.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/firewire/net.c"], "versions": [{"version": "c76acec6d55107b652a37c90b36c00bc8b04dabb", "lessThan": "b7d633c7c92321be98724b1d365e8ce507f2f349", "status": "affected", "versionType": "git"}, {"version": "c76acec6d55107b652a37c90b36c00bc8b04dabb", "lessThan": "22e05b8ddbcf7d22c7f1598786e86635547e554d", "status": "affected", "versionType": "git"}, {"version": "c76acec6d55107b652a37c90b36c00bc8b04dabb", "lessThan": "0177e578d7a885037b0fb82286c12e9d0360cc10", "status": "affected", "versionType": "git"}, {"version": "c76acec6d55107b652a37c90b36c00bc8b04dabb", "lessThan": "2a5aa4e9b89227d1a1690fb8d5b81e5f3b261999", "status": "affected", "versionType": "git"}, {"version": "c76acec6d55107b652a37c90b36c00bc8b04dabb", "lessThan": "d52a13adbb8ccbab99cd3bad36804e87d8b5c052", "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/firewire/net.c"], "versions": [{"version": "2.6.31", "status": "affected"}, {"version": "0", "lessThan": "2.6.31", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc5", "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": "2.6.31", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "7.2-rc5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b7d633c7c92321be98724b1d365e8ce507f2f349"}, {"url": "https://git.kernel.org/stable/c/22e05b8ddbcf7d22c7f1598786e86635547e554d"}, {"url": "https://git.kernel.org/stable/c/0177e578d7a885037b0fb82286c12e9d0360cc10"}, {"url": "https://git.kernel.org/stable/c/2a5aa4e9b89227d1a1690fb8d5b81e5f3b261999"}, {"url": "https://git.kernel.org/stable/c/d52a13adbb8ccbab99cd3bad36804e87d8b5c052"}], "title": "firewire: net: Fix fragmented datagram reassembly", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/firewire/net.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "b7d633c7c92321be98724b1d365e8ce507f2f349", "status": "affected", "version": "c76acec6d55107b652a37c90b36c00bc8b04dabb", "versionType": "git"}, {"lessThan": "22e05b8ddbcf7d22c7f1598786e86635547e554d", "status": "affected", "version": "c76acec6d55107b652a37c90b36c00bc8b04dabb", "versionType": "git"}, {"lessThan": "0177e578d7a885037b0fb82286c12e9d0360cc10", "status": "affected", "version": "c76acec6d55107b652a37c90b36c00bc8b04dabb", "versionType": "git"}, {"lessThan": "2a5aa4e9b89227d1a1690fb8d5b81e5f3b261999", "status": "affected", "version": "c76acec6d55107b652a37c90b36c00bc8b04dabb", "versionType": "git"}, {"lessThan": "d52a13adbb8ccbab99cd3bad36804e87d8b5c052", "status": "affected", "version": "c76acec6d55107b652a37c90b36c00bc8b04dabb", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/firewire/net.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.31"}, {"lessThan": "2.6.31", "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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirewire: net: Fix fragmented datagram reassembly\n\nfwnet_frag_new() keeps a sorted list of received fragments for a partial\ndatagram. When a new fragment is adjacent to an existing fragment, the\ncode checks whether the new fragment also closes the gap to the next or\nprevious list entry.\n\nThose neighbor lookups currently assume that the current fragment always\nhas a real next or previous fragment. At a list edge, the next or\nprevious entry is the list head, not a struct fwnet_fragment_info.\n\nThe gap checks also compare against the old edge of the current fragment\ninstead of the edge after adding the new fragment. As a result, a\nfragment that bridges two existing ranges may leave two adjacent ranges\nunmerged, so fwnet_pd_is_complete() can miss a complete datagram.\n\nCheck for the list head before looking up the neighboring fragment, and\ncompare the neighbor against the new fragment's far edge when deciding\nwhether to merge all three ranges.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review."}], "id": "CVE-2026-68354", "lastModified": "2026-08-10T13:20:27.820", "metrics": {}, "published": "2026-08-10T13:20:27.820", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0177e578d7a885037b0fb82286c12e9d0360cc10"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/22e05b8ddbcf7d22c7f1598786e86635547e554d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2a5aa4e9b89227d1a1690fb8d5b81e5f3b261999"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b7d633c7c92321be98724b1d365e8ce507f2f349"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d52a13adbb8ccbab99cd3bad36804e87d8b5c052"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux Kernel: Denial of Service in FireWire networking due to fragmented datagram reassembly flaw", "id": "2513345", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513345"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-237", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nfirewire: net: Fix fragmented datagram reassembly\nfwnet_frag_new() keeps a sorted list of received fragments for a partial\ndatagram. When a new fragment is adjacent to an existing fragment, the\ncode checks whether the new fragment also closes the gap to the next or\nprevious list entry.\nThose neighbor lookups currently assume that the current fragment always\nhas a real next or previous fragment. At a list edge, the next or\nprevious entry is the list head, not a struct fwnet_fragment_info.\nThe gap checks also compare against the old edge of the current fragment\ninstead of the edge after adding the new fragment. As a result, a\nfragment that bridges two existing ranges may leave two adjacent ranges\nunmerged, so fwnet_pd_is_complete() can miss a complete datagram.\nCheck for the list head before looking up the neighboring fragment, and\ncompare the neighbor against the new fragment's far edge when deciding\nwhether to merge all three ranges.\nThis issue was found by a static analysis checker and confirmed by\nmanual source review.", "A flaw was found in the FireWire (IEEE 1394) networking driver in the Linux kernel. The fragmented datagram reassembly logic in `fwnet_frag_new()` incorrectly handles list edges and merging of adjacent fragments. This can prevent complete datagrams from being recognized, potentially leading to a Denial of Service (DoS) for FireWire network communication."], "name": "CVE-2026-68354", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "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"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:03:31Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68354\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68354\nhttps://git.kernel.org/stable/c/0177e578d7a885037b0fb82286c12e9d0360cc10\nhttps://git.kernel.org/stable/c/22e05b8ddbcf7d22c7f1598786e86635547e554d\nhttps://git.kernel.org/stable/c/2a5aa4e9b89227d1a1690fb8d5b81e5f3b261999\nhttps://git.kernel.org/stable/c/b7d633c7c92321be98724b1d365e8ce507f2f349\nhttps://git.kernel.org/stable/c/d52a13adbb8ccbab99cd3bad36804e87d8b5c052"], "threat_severity": "Moderate"}