cve/published/2025/CVE-2025-22124.json

{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/md-bitmap: fix wrong bitmap_limit for clustermd when write sb\n\nIn clustermd, separate write-intent-bitmaps are used for each cluster\nnode:\n\n0                    4k                     8k                    12k\n-------------------------------------------------------------------\n| idle                | md super            | bm super [0] + bits |\n| bm bits[0, contd]   | bm super[1] + bits  | bm bits[1, contd]   |\n| bm super[2] + bits  | bm bits [2, contd]  | bm super[3] + bits  |\n| bm bits [3, contd]  |                     |                     |\n\nSo in node 1, pg_index in __write_sb_page() could equal to\nbitmap->storage.file_pages. Then bitmap_limit will be calculated to\n0. md_super_write() will be called with 0 size.\nThat means the first 4k sb area of node 1 will never be updated\nthrough filemap_write_page().\nThis bug causes hang of mdadm/clustermd_tests/01r1_Grow_resize.\n\nHere use (pg_index % bitmap->storage.file_pages) to make calculation\nof bitmap_limit correct."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/md/md-bitmap.c"
               ],
               "versions": [
                  {
                     "version": "ab99a87542f194f28e2364a42afbf9fb48b1c724",
                     "lessThan": "bc3a9788961631359527763d7e1fcf26554c7cb1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ab99a87542f194f28e2364a42afbf9fb48b1c724",
                     "lessThan": "6130825f34d41718c98a9b1504a79a23e379701e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "655cc01889fa9b65441922565cddee64af49e6d6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "5600d6013c634c2b6b6c6c55c8ecb50c3a6211f2",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/md/md-bitmap.c"
               ],
               "versions": [
                  {
                     "version": "6.11",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.11",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.14.2",
                     "lessThanOrEqual": "6.14.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.15",
                     "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": "6.11",
                           "versionEndExcluding": "6.14.2"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.11",
                           "versionEndExcluding": "6.15"
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                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.6.44"
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                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.10.3"
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         "references": [
            {
               "url": "https://git.kernel.org/stable/c/bc3a9788961631359527763d7e1fcf26554c7cb1"
            },
            {
               "url": "https://git.kernel.org/stable/c/6130825f34d41718c98a9b1504a79a23e379701e"
            }
         ],
         "title": "md/md-bitmap: fix wrong bitmap_limit for clustermd when write sb",
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   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2025-22124",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
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