CVE-2024-26851 (GCVE-0-2024-26851)

Vulnerability from cvelistv5 – Published: 2024-04-17 10:17 – Updated: 2026-05-12 11:49
VLAI?
Title
netfilter: nf_conntrack_h323: Add protection for bmp length out of range
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: Add protection for bmp length out of range UBSAN load reports an exception of BRK#5515 SHIFT_ISSUE:Bitwise shifts that are out of bounds for their data type. vmlinux get_bitmap(b=75) + 712 <net/netfilter/nf_conntrack_h323_asn1.c:0> vmlinux decode_seq(bs=0xFFFFFFD008037000, f=0xFFFFFFD008037018, level=134443100) + 1956 <net/netfilter/nf_conntrack_h323_asn1.c:592> vmlinux decode_choice(base=0xFFFFFFD0080370F0, level=23843636) + 1216 <net/netfilter/nf_conntrack_h323_asn1.c:814> vmlinux decode_seq(f=0xFFFFFFD0080371A8, level=134443500) + 812 <net/netfilter/nf_conntrack_h323_asn1.c:576> vmlinux decode_choice(base=0xFFFFFFD008037280, level=0) + 1216 <net/netfilter/nf_conntrack_h323_asn1.c:814> vmlinux DecodeRasMessage() + 304 <net/netfilter/nf_conntrack_h323_asn1.c:833> vmlinux ras_help() + 684 <net/netfilter/nf_conntrack_h323_main.c:1728> vmlinux nf_confirm() + 188 <net/netfilter/nf_conntrack_proto.c:137> Due to abnormal data in skb->data, the extension bitmap length exceeds 32 when decoding ras message then uses the length to make a shift operation. It will change into negative after several loop. UBSAN load could detect a negative shift as an undefined behaviour and reports exception. So we add the protection to avoid the length exceeding 32. Or else it will return out of range error and stop decoding.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5e35941d990123f155b02d5663e51a24f816b6f3 , < 98db42191329c679f4ca52bec0b319689e1ad8cb (git)
Affected: 5e35941d990123f155b02d5663e51a24f816b6f3 , < 4bafcc43baf7bcf93566394dbd15726b5b456b7a (git)
Affected: 5e35941d990123f155b02d5663e51a24f816b6f3 , < ccd1108b16ab572d9bf635586b0925635dbd6bbc (git)
Affected: 5e35941d990123f155b02d5663e51a24f816b6f3 , < b3c0f553820516ad4b62a9390ecd28d6f73a7b13 (git)
Affected: 5e35941d990123f155b02d5663e51a24f816b6f3 , < 39001e3c42000e7c2038717af0d33c32319ad591 (git)
Affected: 5e35941d990123f155b02d5663e51a24f816b6f3 , < 014a807f1cc9c9d5173c1cd935835553b00d211c (git)
Affected: 5e35941d990123f155b02d5663e51a24f816b6f3 , < 80ee5054435a11c87c9a4f30f1ff750080c96416 (git)
Affected: 5e35941d990123f155b02d5663e51a24f816b6f3 , < 767146637efc528b5e3d31297df115e85a2fd362 (git)
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Linux Linux Affected: 2.6.17
Unaffected: 0 , < 2.6.17 (semver)
Unaffected: 4.19.310 , ≤ 4.19.* (semver)
Unaffected: 5.4.272 , ≤ 5.4.* (semver)
Unaffected: 5.10.213 , ≤ 5.10.* (semver)
Unaffected: 5.15.152 , ≤ 5.15.* (semver)
Unaffected: 6.1.82 , ≤ 6.1.* (semver)
Unaffected: 6.6.22 , ≤ 6.6.* (semver)
Unaffected: 6.7.10 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nf_conntrack_h323: Add protection for bmp length out of range\\n\\nUBSAN load reports an exception of BRK#5515 SHIFT_ISSUE:Bitwise shifts\\nthat are out of bounds for their data type.\\n\\nvmlinux   get_bitmap(b=75) + 712\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:0\u003e\\nvmlinux   decode_seq(bs=0xFFFFFFD008037000, f=0xFFFFFFD008037018, level=134443100) + 1956\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:592\u003e\\nvmlinux   decode_choice(base=0xFFFFFFD0080370F0, level=23843636) + 1216\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:814\u003e\\nvmlinux   decode_seq(f=0xFFFFFFD0080371A8, level=134443500) + 812\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:576\u003e\\nvmlinux   decode_choice(base=0xFFFFFFD008037280, level=0) + 1216\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:814\u003e\\nvmlinux   DecodeRasMessage() + 304\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:833\u003e\\nvmlinux   ras_help() + 684\\n\u003cnet/netfilter/nf_conntrack_h323_main.c:1728\u003e\\nvmlinux   nf_confirm() + 188\\n\u003cnet/netfilter/nf_conntrack_proto.c:137\u003e\\n\\nDue to abnormal data in skb-\u003edata, the extension bitmap length\\nexceeds 32 when decoding ras message then uses the length to make\\na shift operation. It will change into negative after several loop.\\nUBSAN load could detect a negative shift as an undefined behaviour\\nand reports exception.\\nSo we add the protection to avoid the length exceeding 32. Or else\\nit will return out of range error and stop decoding.\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se resolvi\\u00f3 la siguiente vulnerabilidad: netfilter: nf_conntrack_h323: Agregar protecci\\u00f3n para longitud de bmp fuera de rango La carga de UBSAN informa una excepci\\u00f3n de BRK#5515 SHIFT_ISSUE: desplazamientos bit a bit que est\\u00e1n fuera de los l\\u00edmites para su tipo de datos. vmlinux get_bitmap(b=75) + 712  vmlinux decode_seq(bs=0xFFFFFFD008037000, f=0xFFFFFFD008037018, nivel=134443100) + 1956  vmlinux decode_choice (base=0xFFFFFFD0080370F0, nivel=23843636) + 1216  vmlinux decode_seq(f=0xFFFFFFD0080371A8, nivel=134443500) + 812  vmlinux decode_choice(base =0xFFFFFFD008037280, nivel=0) + 1216  vmlinux DecodeRasMessage() + 304  vmlinux ras_help() + 684  vmlinux nf_confirm() + 188  Debido a datos anormales en skb-\u0026gt;data, la longitud del mapa de bits de la extensi\\u00f3n excede 32 cuando se decodifica el mensaje ras y luego usa la longitud para realizar una operaci\\u00f3n de cambio . Cambiar\\u00e1 a negativo despu\\u00e9s de varios bucles. La carga de UBSAN podr\\u00eda detectar un cambio negativo como un comportamiento indefinido e informar una excepci\\u00f3n. Por lo tanto, agregamos la protecci\\u00f3n para evitar que la longitud exceda 32. De lo contrario, devolver\\u00e1 un error fuera de rango y dejar\\u00e1 de decodificar.\"}]",
      "id": "CVE-2024-26851",
      "lastModified": "2024-11-21T09:03:12.700",
      "published": "2024-04-17T11:15:08.473",
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      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26851\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-17T11:15:08.473\",\"lastModified\":\"2026-05-12T12:16:20.867\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nf_conntrack_h323: Add protection for bmp length out of range\\n\\nUBSAN load reports an exception of BRK#5515 SHIFT_ISSUE:Bitwise shifts\\nthat are out of bounds for their data type.\\n\\nvmlinux   get_bitmap(b=75) + 712\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:0\u003e\\nvmlinux   decode_seq(bs=0xFFFFFFD008037000, f=0xFFFFFFD008037018, level=134443100) + 1956\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:592\u003e\\nvmlinux   decode_choice(base=0xFFFFFFD0080370F0, level=23843636) + 1216\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:814\u003e\\nvmlinux   decode_seq(f=0xFFFFFFD0080371A8, level=134443500) + 812\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:576\u003e\\nvmlinux   decode_choice(base=0xFFFFFFD008037280, level=0) + 1216\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:814\u003e\\nvmlinux   DecodeRasMessage() + 304\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:833\u003e\\nvmlinux   ras_help() + 684\\n\u003cnet/netfilter/nf_conntrack_h323_main.c:1728\u003e\\nvmlinux   nf_confirm() + 188\\n\u003cnet/netfilter/nf_conntrack_proto.c:137\u003e\\n\\nDue to abnormal data in skb-\u003edata, the extension bitmap length\\nexceeds 32 when decoding ras message then uses the length to make\\na shift operation. It will change into negative after several loop.\\nUBSAN load could detect a negative shift as an undefined behaviour\\nand reports exception.\\nSo we add the protection to avoid the length exceeding 32. Or else\\nit will return out of range error and stop decoding.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: netfilter: nf_conntrack_h323: Agregar protecci\u00f3n para longitud de bmp fuera de rango La carga de UBSAN informa una excepci\u00f3n de BRK#5515 SHIFT_ISSUE: desplazamientos bit a bit que est\u00e1n fuera de los l\u00edmites para su tipo de datos. vmlinux get_bitmap(b=75) + 712  vmlinux decode_seq(bs=0xFFFFFFD008037000, f=0xFFFFFFD008037018, nivel=134443100) + 1956  vmlinux decode_choice (base=0xFFFFFFD0080370F0, nivel=23843636) + 1216  vmlinux decode_seq(f=0xFFFFFFD0080371A8, nivel=134443500) + 812  vmlinux decode_choice(base =0xFFFFFFD008037280, nivel=0) + 1216  vmlinux DecodeRasMessage() + 304  vmlinux ras_help() + 684  vmlinux nf_confirm() + 188  Debido a datos anormales en skb-\u0026gt;data, la longitud del mapa de bits de la extensi\u00f3n excede 32 cuando se decodifica el mensaje ras y luego usa la longitud para realizar una operaci\u00f3n de cambio . Cambiar\u00e1 a negativo despu\u00e9s de varios bucles. La carga de UBSAN podr\u00eda detectar un cambio negativo como un comportamiento indefinido e informar una excepci\u00f3n. Por lo tanto, agregamos la protecci\u00f3n para evitar que la longitud exceda 32. De lo contrario, devolver\u00e1 un error fuera de rango y dejar\u00e1 de decodificar.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.17\",\"versionEndExcluding\":\"4.19.310\",\"matchCriteriaId\":\"2376FDE6-6EC1-445C-9CBA-98C1D1D59B0A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.272\",\"matchCriteriaId\":\"06199E67-91F5-4EC0-828B-22825E4DBAD1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.213\",\"matchCriteriaId\":\"CE7B425A-A38B-494A-AA47-EC2251748164\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.152\",\"matchCriteriaId\":\"DBBE9241-559E-479A-895A-02186BA03EBF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.82\",\"matchCriteriaId\":\"933AC628-7DAD-4B2D-82E3-3B7B331B1C09\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.22\",\"matchCriteriaId\":\"AC6FD6F8-5B16-4F53-8116-D42F4BF4FBAC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.7.10\",\"matchCriteriaId\":\"FB4549F9-0160-455F-8CDC-98D38AEF6D66\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"B9F4EA73-0894-400F-A490-3A397AB7A517\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"056BD938-0A27-4569-B391-30578B309EE3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F02056A5-B362-4370-9FF8-6F0BD384D520\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"62075ACE-B2A0-4B16-829D-B3DA5AE5CC41\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.8:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"A780F817-2A77-4130-A9B7-5C25606314E3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.8:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"AEB9199B-AB8F-4877-8964-E2BA95B5F15C\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/014a807f1cc9c9d5173c1cd935835553b00d211c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/39001e3c42000e7c2038717af0d33c32319ad591\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4bafcc43baf7bcf93566394dbd15726b5b456b7a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/767146637efc528b5e3d31297df115e85a2fd362\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/80ee5054435a11c87c9a4f30f1ff750080c96416\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/98db42191329c679f4ca52bec0b319689e1ad8cb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b3c0f553820516ad4b62a9390ecd28d6f73a7b13\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ccd1108b16ab572d9bf635586b0925635dbd6bbc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/014a807f1cc9c9d5173c1cd935835553b00d211c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/39001e3c42000e7c2038717af0d33c32319ad591\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"htt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{\"status\": \"affected\", \"version\": \"5e35941d990123f155b02d5663e51a24f816b6f3\", \"lessThan\": \"767146637efc528b5e3d31297df115e85a2fd362\", \"versionType\": \"git\"}], \"programFiles\": [\"net/netfilter/nf_conntrack_h323_asn1.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.17\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.17\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.310\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.272\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.213\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.152\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.82\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.22\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/netfilter/nf_conntrack_h323_asn1.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/98db42191329c679f4ca52bec0b319689e1ad8cb\"}, {\"url\": \"https://git.kernel.org/stable/c/4bafcc43baf7bcf93566394dbd15726b5b456b7a\"}, {\"url\": \"https://git.kernel.org/stable/c/ccd1108b16ab572d9bf635586b0925635dbd6bbc\"}, {\"url\": \"https://git.kernel.org/stable/c/b3c0f553820516ad4b62a9390ecd28d6f73a7b13\"}, {\"url\": \"https://git.kernel.org/stable/c/39001e3c42000e7c2038717af0d33c32319ad591\"}, {\"url\": \"https://git.kernel.org/stable/c/014a807f1cc9c9d5173c1cd935835553b00d211c\"}, {\"url\": \"https://git.kernel.org/stable/c/80ee5054435a11c87c9a4f30f1ff750080c96416\"}, {\"url\": \"https://git.kernel.org/stable/c/767146637efc528b5e3d31297df115e85a2fd362\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nf_conntrack_h323: Add protection for bmp length out of range\\n\\nUBSAN load reports an exception of BRK#5515 SHIFT_ISSUE:Bitwise shifts\\nthat are out of bounds for their data type.\\n\\nvmlinux   get_bitmap(b=75) + 712\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:0\u003e\\nvmlinux   decode_seq(bs=0xFFFFFFD008037000, f=0xFFFFFFD008037018, level=134443100) + 1956\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:592\u003e\\nvmlinux   decode_choice(base=0xFFFFFFD0080370F0, level=23843636) + 1216\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:814\u003e\\nvmlinux   decode_seq(f=0xFFFFFFD0080371A8, level=134443500) + 812\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:576\u003e\\nvmlinux   decode_choice(base=0xFFFFFFD008037280, level=0) + 1216\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:814\u003e\\nvmlinux   DecodeRasMessage() + 304\\n\u003cnet/netfilter/nf_conntrack_h323_asn1.c:833\u003e\\nvmlinux   ras_help() + 684\\n\u003cnet/netfilter/nf_conntrack_h323_main.c:1728\u003e\\nvmlinux   nf_confirm() + 188\\n\u003cnet/netfilter/nf_conntrack_proto.c:137\u003e\\n\\nDue to abnormal data in skb-\u003edata, the extension bitmap length\\nexceeds 32 when decoding ras message then uses the length to make\\na shift operation. It will change into negative after several loop.\\nUBSAN load could detect a negative shift as an undefined behaviour\\nand reports exception.\\nSo we add the protection to avoid the length exceeding 32. Or else\\nit will return out of range error and stop decoding.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.310\", \"versionStartIncluding\": \"2.6.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.272\", \"versionStartIncluding\": \"2.6.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.213\", \"versionStartIncluding\": \"2.6.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.152\", \"versionStartIncluding\": \"2.6.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.82\", \"versionStartIncluding\": \"2.6.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.22\", \"versionStartIncluding\": \"2.6.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.10\", \"versionStartIncluding\": \"2.6.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"2.6.17\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:05:21.167Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26851\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-12T11:49:32.649Z\", \"dateReserved\": \"2024-02-19T14:20:24.183Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-17T10:17:15.298Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.