{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix state management in error path of log writing function\n\nAfter commit a694291a6211 (\"nilfs2: separate wait function from\nnilfs_segctor_write\") was applied, the log writing function\nnilfs_segctor_do_construct() was able to issue I/O requests continuously\neven if user data blocks were split into multiple logs across segments,\nbut two potential flaws were introduced in its error handling.\n\nFirst, if nilfs_segctor_begin_construction() fails while creating the\nsecond or subsequent logs, the log writing function returns without\ncalling nilfs_segctor_abort_construction(), so the writeback flag set on\npages/folios will remain uncleared.  This causes page cache operations to\nhang waiting for the writeback flag.  For example,\ntruncate_inode_pages_final(), which is called via nilfs_evict_inode() when\nan inode is evicted from memory, will hang.\n\nSecond, the NILFS_I_COLLECTED flag set on normal inodes remain uncleared. \nAs a result, if the next log write involves checkpoint creation, that's\nfine, but if a partial log write is performed that does not, inodes with\nNILFS_I_COLLECTED set are erroneously removed from the \"sc_dirty_files\"\nlist, and their data and b-tree blocks may not be written to the device,\ncorrupting the block mapping.\n\nFix these issues by uniformly calling nilfs_segctor_abort_construction()\non failure of each step in the loop in nilfs_segctor_do_construct(),\nhaving it clean up logs and segment usages according to progress, and\ncorrecting the conditions for calling nilfs_redirty_inodes() to ensure\nthat the NILFS_I_COLLECTED flag is cleared."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/nilfs2/segment.c"
               ],
               "versions": [
                  {
                     "version": "a694291a6211",
                     "lessThan": "40a2757de2c3",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a694291a6211",
                     "lessThan": "036441e8438b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a694291a6211",
                     "lessThan": "efdde00d4a1e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a694291a6211",
                     "lessThan": "3e349d7191f0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a694291a6211",
                     "lessThan": "30562eff4a6d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a694291a6211",
                     "lessThan": "0a1a961bde43",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a694291a6211",
                     "lessThan": "74866c16ea21",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "a694291a6211",
                     "lessThan": "6576dd6695f2",
                     "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/nilfs2/segment.c"
               ],
               "versions": [
                  {
                     "version": "2.6.33",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "2.6.33",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.322",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.284",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.226",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.167",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.110",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.51",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.10",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/40a2757de2c376ef8a08d9ee9c81e77f3c750adf"
            },
            {
               "url": "https://git.kernel.org/stable/c/036441e8438b29111fa75008f0ce305fb4e83c0a"
            },
            {
               "url": "https://git.kernel.org/stable/c/efdde00d4a1ef10bb71e09ebc67823a3d3ad725b"
            },
            {
               "url": "https://git.kernel.org/stable/c/3e349d7191f0688fc9808ef24fd4e4b4ef5ca876"
            },
            {
               "url": "https://git.kernel.org/stable/c/30562eff4a6dd35c4b5be9699ef61ad9f5f20a06"
            },
            {
               "url": "https://git.kernel.org/stable/c/0a1a961bde4351dc047ffdeb2f1311ca16a700cc"
            },
            {
               "url": "https://git.kernel.org/stable/c/74866c16ea2183f52925fa5d76061a1fe7f7737b"
            },
            {
               "url": "https://git.kernel.org/stable/c/6576dd6695f2afca3f4954029ac4a64f82ba60ab"
            }
         ],
         "title": "nilfs2: fix state management in error path of log writing function",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-47669",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}