fkie_cve-2024-53235
Vulnerability from fkie_nvd
Published
2024-12-27 14:15
Modified
2025-01-07 16:02
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
erofs: fix file-backed mounts over FUSE
syzbot reported a null-ptr-deref in fuse_read_args_fill:
fuse_read_folio+0xb0/0x100 fs/fuse/file.c:905
filemap_read_folio+0xc6/0x2a0 mm/filemap.c:2367
do_read_cache_folio+0x263/0x5c0 mm/filemap.c:3825
read_mapping_folio include/linux/pagemap.h:1011 [inline]
erofs_bread+0x34d/0x7e0 fs/erofs/data.c:41
erofs_read_superblock fs/erofs/super.c:281 [inline]
erofs_fc_fill_super+0x2b9/0x2500 fs/erofs/super.c:625
Unlike most filesystems, some network filesystems and FUSE need
unavoidable valid `file` pointers for their read I/Os [1].
Anyway, those use cases need to be supported too.
[1] https://docs.kernel.org/filesystems/vfs.html
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D8882B1B-2ABC-4838-AC1D-DBDBB5764776", "versionEndExcluding": "6.12.2", "versionStartIncluding": "6.12", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix file-backed mounts over FUSE\n\nsyzbot reported a null-ptr-deref in fuse_read_args_fill:\n fuse_read_folio+0xb0/0x100 fs/fuse/file.c:905\n filemap_read_folio+0xc6/0x2a0 mm/filemap.c:2367\n do_read_cache_folio+0x263/0x5c0 mm/filemap.c:3825\n read_mapping_folio include/linux/pagemap.h:1011 [inline]\n erofs_bread+0x34d/0x7e0 fs/erofs/data.c:41\n erofs_read_superblock fs/erofs/super.c:281 [inline]\n erofs_fc_fill_super+0x2b9/0x2500 fs/erofs/super.c:625\n\nUnlike most filesystems, some network filesystems and FUSE need\nunavoidable valid `file` pointers for their read I/Os [1].\nAnyway, those use cases need to be supported too.\n\n[1] https://docs.kernel.org/filesystems/vfs.html" }, { "lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: erofs: se corrigen los montajes respaldados por archivos sobre FUSE syzbot inform\u00f3 de un null-ptr-deref en fuse_read_args_fill: fuse_read_folio+0xb0/0x100 fs/fuse/file.c:905 filemap_read_folio+0xc6/0x2a0 mm/filemap.c:2367 do_read_cache_folio+0x263/0x5c0 mm/filemap.c:3825 read_mapping_folio include/linux/pagemap.h:1011 [en l\u00ednea] erofs_bread+0x34d/0x7e0 fs/erofs/data.c:41 erofs_read_superblock fs/erofs/super.c:281 [en l\u00ednea] erofs_fc_fill_super+0x2b9/0x2500 fs/erofs/super.c:625 A diferencia de la mayor\u00eda de los sistemas de archivos, algunos sistemas de archivos de red y FUSE necesitan punteros de `archivo` v\u00e1lidos e inevitables para sus E/S de lectura [1]. De todos modos, esos casos de uso tambi\u00e9n deben ser compatibles. [1] https://docs.kernel.org/filesystems/vfs.html" } ], "id": "CVE-2024-53235", "lastModified": "2025-01-07T16:02:48.350", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2024-12-27T14:15:31.900", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/3a23787ca8756920d65fda39f41353a4be1d1642" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/5036f2f024cac40a02ea6ea70de2c3a4407d16bc" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-476" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
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Sightings
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Nomenclature
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