{
   "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: fix to do sanity check on F2FS_INLINE_DATA flag in inode during GC\n\nsyzbot reports a f2fs bug as below:\n\n------------[ cut here ]------------\nkernel BUG at fs/f2fs/inline.c:258!\nCPU: 1 PID: 34 Comm: kworker/u8:2 Not tainted 6.9.0-rc6-syzkaller-00012-g9e4bc4bcae01 #0\nRIP: 0010:f2fs_write_inline_data+0x781/0x790 fs/f2fs/inline.c:258\nCall Trace:\n f2fs_write_single_data_page+0xb65/0x1d60 fs/f2fs/data.c:2834\n f2fs_write_cache_pages fs/f2fs/data.c:3133 [inline]\n __f2fs_write_data_pages fs/f2fs/data.c:3288 [inline]\n f2fs_write_data_pages+0x1efe/0x3a90 fs/f2fs/data.c:3315\n do_writepages+0x35b/0x870 mm/page-writeback.c:2612\n __writeback_single_inode+0x165/0x10b0 fs/fs-writeback.c:1650\n writeback_sb_inodes+0x905/0x1260 fs/fs-writeback.c:1941\n wb_writeback+0x457/0xce0 fs/fs-writeback.c:2117\n wb_do_writeback fs/fs-writeback.c:2264 [inline]\n wb_workfn+0x410/0x1090 fs/fs-writeback.c:2304\n process_one_work kernel/workqueue.c:3254 [inline]\n process_scheduled_works+0xa12/0x17c0 kernel/workqueue.c:3335\n worker_thread+0x86d/0xd70 kernel/workqueue.c:3416\n kthread+0x2f2/0x390 kernel/kthread.c:388\n ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n\nThe root cause is: inline_data inode can be fuzzed, so that there may\nbe valid blkaddr in its direct node, once f2fs triggers background GC\nto migrate the block, it will hit f2fs_bug_on() during dirty page\nwriteback.\n\nLet's add sanity check on F2FS_INLINE_DATA flag in inode during GC,\nso that, it can forbid migrating inline_data inode's data block for\nfixing."
            }
         ],
         "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": "1da177e4c3f4",
                     "lessThan": "ae00e6536a2d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "26c07775fb5d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "fc01008c92f4",
                     "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": "6.6.47",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.6",
                     "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/ae00e6536a2dd54b64b39e9a39548870cf835745"
            },
            {
               "url": "https://git.kernel.org/stable/c/26c07775fb5dc74351d1c3a2bc3cdf609b03e49f"
            },
            {
               "url": "https://git.kernel.org/stable/c/fc01008c92f40015aeeced94750855a7111b6929"
            }
         ],
         "title": "f2fs: fix to do sanity check on F2FS_INLINE_DATA flag in inode during GC",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-44942",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}