{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-53018",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-06-09T07:44:35.378Z",
        "datePublished": "2026-06-24T16:29:28.051Z",
        "dateUpdated": "2026-06-24T16:29:28.051Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-24T16:29:28.051Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: avoid reading already updated pages during GC\n\nWe found the following issue during fuzz testing:\n\npage: refcount:3 mapcount:0 mapping:00000000b6e89c65 index:0x18b2dc pfn:0x161ba9\nmemcg:f8ffff800e269c00\naops:f2fs_meta_aops ino:2\nflags: 0x52880000000080a9(locked|waiters|uptodate|lru|private|zone=1|kasantag=0x4a)\nraw: 52880000000080a9 fffffffec6e17588 fffffffec0ccc088 a7ffff8067063618\nraw: 000000000018b2dc 0000000000000009 00000003ffffffff f8ffff800e269c00\npage dumped because: VM_BUG_ON_FOLIO(folio_test_uptodate(folio))\npage_owner tracks the page as allocated\n post_alloc_hook+0x58c/0x5ec\n prep_new_page+0x34/0x284\n get_page_from_freelist+0x2dcc/0x2e8c\n __alloc_pages_noprof+0x280/0x76c\n __folio_alloc_noprof+0x18/0xac\n __filemap_get_folio+0x6bc/0xdc4\n pagecache_get_page+0x3c/0x104\n do_garbage_collect+0x5c78/0x77a4\n f2fs_gc+0xd74/0x25f0\n gc_thread_func+0xb28/0x2930\n kthread+0x464/0x5d8\n ret_from_fork+0x10/0x20\n------------[ cut here ]------------\nkernel BUG at mm/filemap.c:1563!\n folio_end_read+0x140/0x168\n f2fs_finish_read_bio+0x5c4/0xb80\n f2fs_read_end_io+0x64c/0x708\n bio_endio+0x85c/0x8c0\n blk_update_request+0x690/0x127c\n scsi_end_request+0x9c/0xb8c\n scsi_io_completion+0xf0/0x250\n scsi_finish_command+0x430/0x45c\n scsi_complete+0x178/0x6d4\n blk_mq_complete_request+0xcc/0x104\n scsi_done_internal+0x214/0x454\n scsi_done+0x24/0x34\n\nwhich is similar to the problem reported by syzbot:\nhttps://syzkaller.appspot.com/bug?extid=3686758660f980b402dc\n\nThis case is consistent with the description in commit 9bf1a3f\n(\"f2fs: avoid GC causing encrypted file corrupted\"):\nPage 1 is moved from blkaddr A to blkaddr B by move_data_block, and after\nbeing written it is marked as uptodate. Then, Page 1 is moved from blkaddr\nB to blkaddr C, VM_BUG_ON_FOLIO was triggered in the endio initiated by\nra_data_block.\n\nThere is no need to read Page 1 again from blkaddr B, since it has already\nbeen updated. Therefore, avoid initiating I/O in this case."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/f2fs/gc.c"
                    ],
                    "versions": [
                        {
                            "version": "6aa58d8ad20a3323f42274c25820a6f54192422d",
                            "lessThan": "4623c251496b99c530ce225c05334f4eac8b933a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6aa58d8ad20a3323f42274c25820a6f54192422d",
                            "lessThan": "b663ebb8a340eae5442e605b6acd2cff5677f016",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6aa58d8ad20a3323f42274c25820a6f54192422d",
                            "lessThan": "570e2ccc7cb35fe720106964e65060602d3d2ac4",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/f2fs/gc.c"
                    ],
                    "versions": [
                        {
                            "version": "4.19",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.19",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.33",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.10",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "4.19",
                                    "versionEndExcluding": "6.18.33"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.19",
                                    "versionEndExcluding": "7.0.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.19",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/4623c251496b99c530ce225c05334f4eac8b933a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b663ebb8a340eae5442e605b6acd2cff5677f016"
                },
                {
                    "url": "https://git.kernel.org/stable/c/570e2ccc7cb35fe720106964e65060602d3d2ac4"
                }
            ],
            "title": "f2fs: avoid reading already updated pages during GC",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}