{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-53060",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-06-09T07:44:35.382Z",
        "datePublished": "2026-06-24T16:30:04.872Z",
        "dateUpdated": "2026-06-24T16:30:04.872Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-24T16:30:04.872Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm cache metadata: fix memory leak on metadata abort retry\n\nWhen failing to acquire the root_lock in dm_cache_metadata_abort because\nthe block_manager is read-only, the temporary block_manager created\noutside the root_lock is not properly released, causing a memory leak.\n\nReproduce steps:\n\nThis can be reproduced by reloading a new table while the metadata\nis read-only. While the second call to dm_cache_metadata_abort is\ncaused by lack of support for table preload in dm-cache, mentioned\nin commit 9b1cc9f251af (\"dm cache: share cache-metadata object across\ninactive and active DM tables\"), it exposes the memory leak in\ndm_cache_metadata_abort when the function is called multiple times.\nSpecifically, dm-cache fails to sync the new cache object's mode during\npreresume, creating the reproducer condition.\n\nThis issue could also occur through concurrent metadata_operation_failed\ncalls due to races in cache mode updates, but the table preload scenario\nbelow provides a reliable reproducer.\n\n1. Create a cache device with some faulty trailing metadata blocks\n\ndmsetup create cmeta <<EOF\n0 200 linear /dev/sdc 0\n200 7992 error\nEOF\ndmsetup create cdata --table \"0 131072 linear /dev/sdc 8192\"\ndmsetup create corig --table \"0 262144 linear /dev/sdc 262144\"\ndd if=/dev/zero of=/dev/mapper/cmeta bs=4k count=1 oflag=direct\ndmsetup create cache --table \"0 131072 cache /dev/mapper/cmeta \\\n/dev/mapper/cdata /dev/mapper/corig 128 1 writethrough smq 0\"\n\n2. Suspend and resume the cache to start a new metadata transaction and\n   trigger metadata io errors on the next metadata commit.\n\ndmsetup suspend cache\ndmsetup resume cache\n\n3. Write to the cache device to update metadata\n\nfio --filename=/dev/mapper/cache --name test --rw=randwrite --bs=4k \\\n--randrepeat=0 --direct=1 --size 64k\n\n4. Preload the same table\n\ndmsetup reload cache --table \"$(dmsetup table cache)\"\n\n5. Resume the new table. This triggers the memory leak.\n\ndmsetup suspend cache\ndmsetup resume cache\n\nkmemleak logs:\n\n<snip>\nunreferenced object 0xffff8880080c2010 (size 16):\n  comm \"dmsetup\", pid 132, jiffies 4294982580\n  hex dump (first 16 bytes):\n    00 38 b9 07 80 88 ff ff 6a 6b 6b 6b 6b 6b 6b a5 ...\n  backtrace (crc 3118f31c):\n    kmemleak_alloc+0x28/0x40\n    __kmalloc_cache_noprof+0x3d9/0x510\n    dm_block_manager_create+0x51/0x140\n    dm_cache_metadata_abort+0x85/0x320\n    metadata_operation_failed+0x103/0x1e0\n    cache_preresume+0xacd/0xe70\n    dm_table_resume_targets+0xd3/0x320\n    __dm_resume+0x1b/0xf0\n    dm_resume+0x127/0x170\n<snip>"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/md/dm-cache-metadata.c"
                    ],
                    "versions": [
                        {
                            "version": "b45e77b79215405bd039a690f5b06cc03e8ed27d",
                            "lessThan": "14f60e957f34f95a626caec76a8fae88cf4c397f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "28d307f380df88a598bc0186d527462902d9bda1",
                            "lessThan": "6b97cc7a42905755c56bbddc33aa8b792205caee",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f74b7c5a85e22cd9091845e0d62a1dd89d0f855f",
                            "lessThan": "d1a79620c419a0af1911f99c873014b30740e303",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "352b837a5541690d4f843819028cf2b8be83d424",
                            "lessThan": "15c30997dca681f90dbf2d45ee629c1828bf0c0d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "352b837a5541690d4f843819028cf2b8be83d424",
                            "lessThan": "b0bd35535bdb6f58505f3a30ee5793986943997a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "352b837a5541690d4f843819028cf2b8be83d424",
                            "lessThan": "322a3b70368d49e39591fe9fc6c07d262128b05f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "352b837a5541690d4f843819028cf2b8be83d424",
                            "lessThan": "4311ca59a1891d33c4c8b7946f98c34f167fe833",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "352b837a5541690d4f843819028cf2b8be83d424",
                            "lessThan": "044ca491d4086dc5bf233e9fcb71db52df32f633",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6e237cacda8b4e976849e7bff9fe7dff0e968586",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3972ae47d0ee9b5b434af5d0cca6cdfd1e239d4f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9958f5ffc44530b650fb4cc9038a4d167fa4f5c1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f472bfc95d9c9653172dbdad39219b32fabf9b92",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bdd4e106929ac943f3226d8f03754b480701e97b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.10.163",
                            "lessThan": "5.10.258",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.87",
                            "lessThan": "5.15.209",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.4",
                            "lessThan": "6.1.175",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.9.337",
                            "lessThan": "4.10",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.303",
                            "lessThan": "4.15",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.270",
                            "lessThan": "4.20",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.229",
                            "lessThan": "5.5",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.18",
                            "lessThan": "6.1",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/md/dm-cache-metadata.c"
                    ],
                    "versions": [
                        {
                            "version": "6.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.258",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.209",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.175",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.141",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.91",
                            "lessThanOrEqual": "6.12.*",
                            "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": "5.10.163",
                                    "versionEndExcluding": "5.10.258"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.15.87",
                                    "versionEndExcluding": "5.15.209"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.1.4",
                                    "versionEndExcluding": "6.1.175"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.6.141"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.12.91"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "6.18.33"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "7.0.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.2",
                                    "versionEndExcluding": "7.1"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.9.337"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14.303"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.19.270"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4.229"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0.18"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/14f60e957f34f95a626caec76a8fae88cf4c397f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6b97cc7a42905755c56bbddc33aa8b792205caee"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d1a79620c419a0af1911f99c873014b30740e303"
                },
                {
                    "url": "https://git.kernel.org/stable/c/15c30997dca681f90dbf2d45ee629c1828bf0c0d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b0bd35535bdb6f58505f3a30ee5793986943997a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/322a3b70368d49e39591fe9fc6c07d262128b05f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4311ca59a1891d33c4c8b7946f98c34f167fe833"
                },
                {
                    "url": "https://git.kernel.org/stable/c/044ca491d4086dc5bf233e9fcb71db52df32f633"
                }
            ],
            "title": "dm cache metadata: fix memory leak on metadata abort retry",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}