ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()

{
  "id": "ac2405f5252d586d6d337ee4ad1feff5fb5e8ce50596acc46149aa46fdf70dc6",
  "url": "https://osv.dev/vulnerability/CVE-2024-50265",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove() Syzkaller is able to provoke null-ptr-dereference in ocfs2_xa_remove(): [ 57.319872] (a.out,1161,7):ocfs2_xa_remove:2028 ERROR: status = -12 [ 57.320420] (a.out,1161,7):ocfs2_xa_cleanup_value_truncate:1999 ERROR: Partial truncate while removing xattr overlay.upper. Leaking 1 clusters and removing the entry [ 57.321727] BUG: kernel NULL pointer dereference, address: 0000000000000004 [...] [ 57.325727] RIP: 0010:ocfs2_xa_block_wipe_namevalue+0x2a/0xc0 [...] [ 57.331328] Call Trace: [ 57.331477] [...] [ 57.333511] ? do_user_addr_fault+0x3e5/0x740 [ 57.333778] ? exc_page_fault+0x70/0x170 [ 57.334016] ? asm_exc_page_fault+0x2b/0x30 [ 57.334263] ? __pfx_ocfs2_xa_block_wipe_namevalue+0x10/0x10 [ 57.334596] ? ocfs2_xa_block_wipe_namevalue+0x2a/0xc0 [ 57.334913] ocfs2_xa_remove_entry+0x23/0xc0 [ 57.335164] ocfs2_xa_set+0x704/0xcf0 [ 57.335381] ? _raw_spin_unlock+0x1a/0x40 [ 57.335620] ? ocfs2_inode_cache_unlock+0x16/0x20 [ 57.335915] ? trace_preempt_on+0x1e/0x70 [ 57.336153] ? start_this_handle+0x16c/0x500 [ 57.336410] ? preempt_count_sub+0x50/0x80 [ 57.336656] ? _raw_read_unlock+0x20/0x40 [ 57.336906] ? start_this_handle+0x16c/0x500 [ 57.337162] ocfs2_xattr_block_set+0xa6/0x1e0 [ 57.337424] __ocfs2_xattr_set_handle+0x1fd/0x5d0 [ 57.337706] ? ocfs2_start_trans+0x13d/0x290 [ 57.337971] ocfs2_xattr_set+0xb13/0xfb0 [ 57.338207] ? dput+0x46/0x1c",
    "evidence": "osv:CVE-2024-50265",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.19.324",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.4.286",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.230",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.172",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.117",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.61",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.11.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-50265",
      "aliases": [
        "CVE-2024-50265"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                },
                {
                  "fixed": "38cbf13b2e7a31362babe411f7c2c3c52cd2734b"
                },
                {
                  "fixed": "168a9b8303fcb0317db4c06b23ce1c0ce2af4e10"
                },
                {
                  "fixed": "6a7e6dcf90fe7721d0863067b6ca9a9442134692"
                },
                {
                  "fixed": "dcc8fe8c83145041cb6c80cac21f6173a3ff0204"
                },
                {
                  "fixed": "86dd0e8d42828923c68ad506933336bcd6f2317d"
                },
                {
                  "fixed": "dd73c942eed76a014c7a5597e6926435274d2c4c"
                },
                {
                  "fixed": "2b5369528ee63c88371816178a05b5e664c87386"
                },
                {
                  "fixed": "0b63c0e01fba40e3992bc627272ec7b618ccaef7"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-50265.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.34"
                },
                {
                  "fixed": "4.19.324"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.20.0"
                },
                {
                  "fixed": "5.4.286"
                }
              ]
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            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.230"
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              "type": "ECOSYSTEM",
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                  "introduced": "5.11.0"
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            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
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                {
                  "fixed": "6.1.117"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.61"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.11.8"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-50265.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.614078932Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0b63c0e01fba40e3992bc627272ec7b618ccaef7",
        "https://git.kernel.org/stable/c/168a9b8303fcb0317db4c06b23ce1c0ce2af4e10",
        "https://git.kernel.org/stable/c/2b5369528ee63c88371816178a05b5e664c87386",
        "https://git.kernel.org/stable/c/38cbf13b2e7a31362babe411f7c2c3c52cd2734b",
        "https://git.kernel.org/stable/c/6a7e6dcf90fe7721d0863067b6ca9a9442134692",
        "https://git.kernel.org/stable/c/86dd0e8d42828923c68ad506933336bcd6f2317d",
        "https://git.kernel.org/stable/c/dcc8fe8c83145041cb6c80cac21f6173a3ff0204",
        "https://git.kernel.org/stable/c/dd73c942eed76a014c7a5597e6926435274d2c4c",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50265.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-50265",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50265.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-50265",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 509315,
  "published_at": "2024-11-19T01:30:00.861+00:00"
}