{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: compress: don't allow unaligned truncation on released compress inode\n\nf2fs image may be corrupted after below testcase:\n- mkfs.f2fs -O extra_attr,compression -f /dev/vdb\n- mount /dev/vdb /mnt/f2fs\n- touch /mnt/f2fs/file\n- f2fs_io setflags compression /mnt/f2fs/file\n- dd if=/dev/zero of=/mnt/f2fs/file bs=4k count=4\n- f2fs_io release_cblocks /mnt/f2fs/file\n- truncate -s 8192 /mnt/f2fs/file\n- umount /mnt/f2fs\n- fsck.f2fs /dev/vdb\n\n[ASSERT] (fsck_chk_inode_blk:1256)  --> ino: 0x5 has i_blocks: 0x00000002, but has 0x3 blocks\n[FSCK] valid_block_count matching with CP             [Fail] [0x4, 0x5]\n[FSCK] other corrupted bugs                           [Fail]\n\nThe reason is: partial truncation assume compressed inode has reserved\nblocks, after partial truncation, valid block count may change w/o\n.i_blocks and .total_valid_block_count update, result in corruption.\n\nThis patch only allow cluster size aligned truncation on released\ncompress inode for fixing."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/f2fs/file.c"
               ],
               "versions": [
                  {
                     "version": "8e1651cd667c",
                     "lessThan": "b8962cf98595",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c61404153eb6",
                     "lessThan": "8acae0472150",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c61404153eb6",
                     "lessThan": "3ccf5210dc94",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c61404153eb6",
                     "lessThan": "9f9341064a9b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c61404153eb6",
                     "lessThan": "5268241b41b1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c61404153eb6",
                     "lessThan": "29ed2b5dd521",
                     "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/file.c"
               ],
               "versions": [
                  {
                     "version": "5.14",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.14",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.161",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.93",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.33",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9.4",
                     "lessThanOrEqual": "6.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/b8962cf98595d1ec62f40f23667de830567ec8bc"
            },
            {
               "url": "https://git.kernel.org/stable/c/8acae047215024d1ac499b3c8337ef1b952f160b"
            },
            {
               "url": "https://git.kernel.org/stable/c/3ccf5210dc941a7aa0180596ac021568be4d35ec"
            },
            {
               "url": "https://git.kernel.org/stable/c/9f9341064a9b5246a32a7fe56b9f80c6f7f3c62d"
            },
            {
               "url": "https://git.kernel.org/stable/c/5268241b41b1c5d0acca75e9b97d4fd719251c8c"
            },
            {
               "url": "https://git.kernel.org/stable/c/29ed2b5dd521ce7c5d8466cd70bf0cc9d07afeee"
            }
         ],
         "title": "f2fs: compress: don't allow unaligned truncation on released compress inode",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-33847",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}