{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-38163", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.991Z", "datePublished": "2025-07-03T08:36:04.397Z", "dateUpdated": "2025-11-03T17:34:53.978Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-07-28T04:13:56.526Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to do sanity check on sbi->total_valid_block_count\n\nsyzbot reported a f2fs bug as below:\n\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/f2fs.h:2521!\nRIP: 0010:dec_valid_block_count+0x3b2/0x3c0 fs/f2fs/f2fs.h:2521\nCall Trace:\n f2fs_truncate_data_blocks_range+0xc8c/0x11a0 fs/f2fs/file.c:695\n truncate_dnode+0x417/0x740 fs/f2fs/node.c:973\n 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inode, so, we should\nnot trigger panic for such case, instead, let's print log and\nset fsck flag."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/f2fs/f2fs.h"], "versions": [{"version": "39a53e0ce0df01b3cf4bb898c7ae2fd2189647d5", "lessThan": "49bc7bf38e42cfa642787e947f5721696ea73ac3", "status": "affected", "versionType": "git"}, {"version": "39a53e0ce0df01b3cf4bb898c7ae2fd2189647d5", "lessThan": "f1b743c1955151bd392539b739a3ad155296be13", "status": "affected", "versionType": "git"}, {"version": "39a53e0ce0df01b3cf4bb898c7ae2fd2189647d5", "lessThan": "6a324d77f7ea1a91d55c4b6ad970e3ac9ab6a20d", "status": "affected", "versionType": "git"}, {"version": "39a53e0ce0df01b3cf4bb898c7ae2fd2189647d5", "lessThan": "25f3776b58c1c45ad2e50ab4b263505b4d2378ca", "status": "affected", "versionType": "git"}, {"version": "39a53e0ce0df01b3cf4bb898c7ae2fd2189647d5", 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RIP: 0010:dec_valid_block_count+0x3b2/0x3c0 fs/f2fs/f2fs.h:2521 Rastreo de llamadas: f2fs_truncate_data_blocks_range+0xc8c/0x11a0 fs/f2fs/file.c:695 truncate_dnode+0x417/0x740 fs/f2fs/node.c:973 truncate_nodes+0x3ec/0xf50 fs/f2fs/node.c:1014 f2fs_truncate_inode_blocks+0x8e3/0x1370 fs/f2fs/node.c:1197 f2fs_do_truncate_blocks+0x840/0x12b0 fs/f2fs/file.c:810 f2fs_truncate_blocks+0x10d/0x300 fs/f2fs/file.c:838 f2fs_truncate+0x417/0x720 fs/f2fs/file.c:888 f2fs_setattr+0xc4f/0x12f0 fs/f2fs/file.c:1112 notify_change+0xbca/0xe90 fs/attr.c:552 do_truncate+0x222/0x310 fs/open.c:65 handle_truncate fs/namei.c:3466 [inline] do_open fs/namei.c:3849 [inline] path_openat+0x2e4f/0x35d0 fs/namei.c:4004 do_filp_open+0x284/0x4e0 fs/namei.c:4031 do_sys_openat2+0x12b/0x1d0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_creat fs/open.c:1522 [inline] __se_sys_creat fs/open.c:1516 [inline] __x64_sys_creat+0x124/0x170 fs/open.c:1516 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 El La raz\u00f3n es: en la imagen difusa, sbi->total_valid_block_count es inconsistente con los bloques mapeados indexados por inodo, por lo tanto, no deber\u00edamos generar p\u00e1nico en tal caso, en su lugar, imprimamos el registro y configuremos el indicador fsck."}], "id": "CVE-2025-38163", "lastModified": "2025-12-18T17:32:07.443", "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": "2025-07-03T09:15:31.727", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/05872a167c2cab80ef186ef23cc34a6776a1a30c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/25f3776b58c1c45ad2e50ab4b263505b4d2378ca"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/49bc7bf38e42cfa642787e947f5721696ea73ac3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/65b3f76592aed5a43c4d79375ac097acf975972b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6a324d77f7ea1a91d55c4b6ad970e3ac9ab6a20d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a39cc43efc1bca74ed9d6cf9e60b995071f7d178"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ccc28c0397f75a3ec9539cceed9db014d7b73869"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f1b743c1955151bd392539b739a3ad155296be13"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: f2fs: fix to do sanity check on sbi->total_valid_block_count", "id": "2376070", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2376070"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nf2fs: fix to do sanity check on sbi->total_valid_block_count\nsyzbot reported a f2fs bug as below:\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/f2fs.h:2521!\nRIP: 0010:dec_valid_block_count+0x3b2/0x3c0 fs/f2fs/f2fs.h:2521\nCall Trace:\nf2fs_truncate_data_blocks_range+0xc8c/0x11a0 fs/f2fs/file.c:695\ntruncate_dnode+0x417/0x740 fs/f2fs/node.c:973\ntruncate_nodes+0x3ec/0xf50 fs/f2fs/node.c:1014\nf2fs_truncate_inode_blocks+0x8e3/0x1370 fs/f2fs/node.c:1197\nf2fs_do_truncate_blocks+0x840/0x12b0 fs/f2fs/file.c:810\nf2fs_truncate_blocks+0x10d/0x300 fs/f2fs/file.c:838\nf2fs_truncate+0x417/0x720 fs/f2fs/file.c:888\nf2fs_setattr+0xc4f/0x12f0 fs/f2fs/file.c:1112\nnotify_change+0xbca/0xe90 fs/attr.c:552\ndo_truncate+0x222/0x310 fs/open.c:65\nhandle_truncate fs/namei.c:3466 [inline]\ndo_open fs/namei.c:3849 [inline]\npath_openat+0x2e4f/0x35d0 fs/namei.c:4004\ndo_filp_open+0x284/0x4e0 fs/namei.c:4031\ndo_sys_openat2+0x12b/0x1d0 fs/open.c:1429\ndo_sys_open fs/open.c:1444 [inline]\n__do_sys_creat fs/open.c:1522 [inline]\n__se_sys_creat fs/open.c:1516 [inline]\n__x64_sys_creat+0x124/0x170 fs/open.c:1516\ndo_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\ndo_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94\nThe reason is: in fuzzed image, sbi->total_valid_block_count is\ninconsistent w/ mapped blocks indexed by inode, so, we should\nnot trigger panic for such case, instead, let's print log and\nset fsck flag."], "name": "CVE-2025-38163", "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": "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-07-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38163\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38163\nhttps://lore.kernel.org/linux-cve-announce/2025070340-CVE-2025-38163-273b@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-06T22:16:22.892692+00:00", "updated": "2025-07-06T22:16:22.892741+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}