CVE-2022-49318
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
f2fs: remove WARN_ON in f2fs_is_valid_blkaddr
Syzbot triggers two WARNs in f2fs_is_valid_blkaddr and __is_bitmap_valid. For example, in f2fs_is_valid_blkaddr, if type is DATA_GENERIC_ENHANCE or DATA_GENERIC_ENHANCE_READ, it invokes WARN_ON if blkaddr is not in the right range. The call trace is as follows:
Fix these two WARNs by replacing WARN_ON with dump_stack.
Detalles técnicos trazas, registros y código del informe original
f2fs_get_node_info+0x45f/0x1070 read_node_page+0x577/0x1190 __get_node_page.part.0+0x9e/0x10e0 __get_node_page f2fs_get_node_page+0x109/0x180 do_read_inode f2fs_iget+0x2a5/0x58b0 f2fs_fill_super+0x3b39/0x7ca0
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.26%
- Percentil entre todas las CVEs puntuadas: 16
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/0a7a1fc7e71eecf2e5053a6c312c9f0dcbb9b8fd
- https://git.kernel.org/stable/c/32bea51fe4c6e92c00403739f7547c89219bea88
- https://git.kernel.org/stable/c/8c62c5e26345c34d199b4b8c8e69255ba3d0e751
- https://git.kernel.org/stable/c/99c09b298e47ebbe345a6da9f268b32a6b0f4582
- https://git.kernel.org/stable/c/cd6374af36cc548464d8c47a93fdba7303bb82a4
- https://git.kernel.org/stable/c/dc2f78e2d4cc844a1458653d57ce1b54d4a29f21
JSON original (NVD)
Mostrar
{
"id": "CVE-2022-49318",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2022-49318",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-10-01T19:43:51.397686Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "c9b60788fc760d136211853f10ce73dc152d1f4a",
"lessThan": "0a7a1fc7e71eecf2e5053a6c312c9f0dcbb9b8fd",
"versionType": "git"
},
{
"status": "affected",
"version": "c9b60788fc760d136211853f10ce73dc152d1f4a",
"lessThan": "32bea51fe4c6e92c00403739f7547c89219bea88",
"versionType": "git"
},
{
"status": "affected",
"version": "c9b60788fc760d136211853f10ce73dc152d1f4a",
"lessThan": "99c09b298e47ebbe345a6da9f268b32a6b0f4582",
"versionType": "git"
},
{
"status": "affected",
"version": "c9b60788fc760d136211853f10ce73dc152d1f4a",
"lessThan": "cd6374af36cc548464d8c47a93fdba7303bb82a4",
"versionType": "git"
},
{
"status": "affected",
"version": "c9b60788fc760d136211853f10ce73dc152d1f4a",
"lessThan": "8c62c5e26345c34d199b4b8c8e69255ba3d0e751",
"versionType": "git"
},
{
"status": "affected",
"version": "c9b60788fc760d136211853f10ce73dc152d1f4a",
"lessThan": "dc2f78e2d4cc844a1458653d57ce1b54d4a29f21",
"versionType": "git"
},
{
"status": "affected",
"version": "bdffda8db8d9e0125b9a41edc420c39f9905c6ab",
"versionType": "git"
},
{
"status": "affected",
"version": "aafb371575161e315a98dee978b72f9d5357791b",
"versionType": "git"
},
{
"status": "affected",
"version": "ad19d1e78fd51f5b4bf3ebbcbf3a133c8c03c49d",
"versionType": "git"
},
{
"status": "affected",
"version": "4.4.172",
"lessThan": "4.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.9.144",
"lessThan": "4.10",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.14.86",
"lessThan": "4.15",
"versionType": "semver"
}
],
"programFiles": [
"fs/f2fs/checkpoint.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.19"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.19",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.4.198",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.122",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.47",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "5.17.15",
"versionType": "semver",
"lessThanOrEqual": "5.17.*"
},
{
"status": "unaffected",
"version": "5.18.4",
"versionType": "semver",
"lessThanOrEqual": "5.18.*"
},
{
"status": "unaffected",
"version": "5.19",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/f2fs/checkpoint.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-02-26T07:01:08.660",
"references": [
{
"url": "https://git.kernel.org/stable/c/0a7a1fc7e71eecf2e5053a6c312c9f0dcbb9b8fd",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/32bea51fe4c6e92c00403739f7547c89219bea88",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/8c62c5e26345c34d199b4b8c8e69255ba3d0e751",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/99c09b298e47ebbe345a6da9f268b32a6b0f4582",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/cd6374af36cc548464d8c47a93fdba7303bb82a4",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/dc2f78e2d4cc844a1458653d57ce1b54d4a29f21",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: remove WARN_ON in f2fs_is_valid_blkaddr\n\nSyzbot triggers two WARNs in f2fs_is_valid_blkaddr and\n__is_bitmap_valid. For example, in f2fs_is_valid_blkaddr,\nif type is DATA_GENERIC_ENHANCE or DATA_GENERIC_ENHANCE_READ,\nit invokes WARN_ON if blkaddr is not in the right range.\nThe call trace is as follows:\n\n f2fs_get_node_info+0x45f/0x1070\n read_node_page+0x577/0x1190\n __get_node_page.part.0+0x9e/0x10e0\n __get_node_page\n f2fs_get_node_page+0x109/0x180\n do_read_inode\n f2fs_iget+0x2a5/0x58b0\n f2fs_fill_super+0x3b39/0x7ca0\n\nFix these two WARNs by replacing WARN_ON with dump_stack."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: eliminar WARN_ON en f2fs_is_valid_blkaddr Syzbot activa dos WARN en f2fs_is_valid_blkaddr y __is_bitmap_valid. Por ejemplo, en f2fs_is_valid_blkaddr, si el tipo es DATA_GENERIC_ENHANCE o DATA_GENERIC_ENHANCE_READ, invoca WARN_ON si blkaddr no está en el rango correcto. El seguimiento de la llamada es el siguiente: f2fs_get_node_info+0x45f/0x1070 read_node_page+0x577/0x1190 __get_node_page.part.0+0x9e/0x10e0 __get_node_page f2fs_get_node_page+0x109/0x180 do_read_inode f2fs_iget+0x2a5/0x58b0 f2fs_fill_super+0x3b39/0x7ca0 Corrija estas dos ADVERTENCIAS reemplazando WARN_ON con dump_stack."
}
],
"lastModified": "2026-08-15T13:17:18.803",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C1C86ABC-337F-46B3-BCD8-22DC5A66E45A",
"versionEndExcluding": "5.4.198"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1B42AA01-44D8-4572-95E6-FF8E374CF9C5",
"versionEndExcluding": "5.10.122",
"versionStartIncluding": "5.5"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FC042EE3-4864-4325-BE0B-4BCDBF11AA61",
"versionEndExcluding": "5.15.47",
"versionStartIncluding": "5.11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "53E7AA2E-2FB4-45CA-A22B-08B4EDBB51AD",
"versionEndExcluding": "5.17.15",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FA6D643C-6D6A-4821-8A8D-B5776B8F0103",
"versionEndExcluding": "5.18.4",
"versionStartIncluding": "5.18"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}