CVE-2023-53306 (GCVE-0-2023-53306)

Vulnerability from cvelistv5 – Published: 2025-09-16 16:11 – Updated: 2026-05-11 19:42
VLAI
Title
fsdax: force clear dirty mark if CoW
Summary
In the Linux kernel, the following vulnerability has been resolved: fsdax: force clear dirty mark if CoW XFS allows CoW on non-shared extents to combat fragmentation[1]. The old non-shared extent could be mwrited before, its dax entry is marked dirty. This results in a WARNing: [ 28.512349] ------------[ cut here ]------------ [ 28.512622] WARNING: CPU: 2 PID: 5255 at fs/dax.c:390 dax_insert_entry+0x342/0x390 [ 28.513050] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache netfs nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables [ 28.515462] CPU: 2 PID: 5255 Comm: fsstress Kdump: loaded Not tainted 6.3.0-rc1-00001-g85e1481e19c1-dirty #117 [ 28.515902] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS Arch Linux 1.16.1-1-1 04/01/2014 [ 28.516307] RIP: 0010:dax_insert_entry+0x342/0x390 [ 28.516536] Code: 30 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 48 8b 45 20 48 83 c0 01 e9 e2 fe ff ff 48 8b 45 20 48 83 c0 01 e9 cd fe ff ff <0f> 0b e9 53 ff ff ff 48 8b 7c 24 08 31 f6 e8 1b 61 a1 00 eb 8c 48 [ 28.517417] RSP: 0000:ffffc9000845fb18 EFLAGS: 00010086 [ 28.517721] RAX: 0000000000000053 RBX: 0000000000000155 RCX: 000000000018824b [ 28.518113] RDX: 0000000000000000 RSI: ffffffff827525a6 RDI: 00000000ffffffff [ 28.518515] RBP: ffffea00062092c0 R08: 0000000000000000 R09: ffffc9000845f9c8 [ 28.518905] R10: 0000000000000003 R11: ffffffff82ddb7e8 R12: 0000000000000155 [ 28.519301] R13: 0000000000000000 R14: 000000000018824b R15: ffff88810cfa76b8 [ 28.519703] FS: 00007f14a0c94740(0000) GS:ffff88817bd00000(0000) knlGS:0000000000000000 [ 28.520148] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.520472] CR2: 00007f14a0c8d000 CR3: 000000010321c004 CR4: 0000000000770ee0 [ 28.520863] PKRU: 55555554 [ 28.521043] Call Trace: [ 28.521219] <TASK> [ 28.521368] dax_fault_iter+0x196/0x390 [ 28.521595] dax_iomap_pte_fault+0x19b/0x3d0 [ 28.521852] __xfs_filemap_fault+0x234/0x2b0 [ 28.522116] __do_fault+0x30/0x130 [ 28.522334] do_fault+0x193/0x340 [ 28.522586] __handle_mm_fault+0x2d3/0x690 [ 28.522975] handle_mm_fault+0xe6/0x2c0 [ 28.523259] do_user_addr_fault+0x1bc/0x6f0 [ 28.523521] exc_page_fault+0x60/0x140 [ 28.523763] asm_exc_page_fault+0x22/0x30 [ 28.524001] RIP: 0033:0x7f14a0b589ca [ 28.524225] Code: c5 fe 7f 07 c5 fe 7f 47 20 c5 fe 7f 47 40 c5 fe 7f 47 60 c5 f8 77 c3 66 0f 1f 84 00 00 00 00 00 40 0f b6 c6 48 89 d1 48 89 fa <f3> aa 48 89 d0 c5 f8 77 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 [ 28.525198] RSP: 002b:00007fff1dea1c98 EFLAGS: 00010202 [ 28.525505] RAX: 000000000000001e RBX: 000000000014a000 RCX: 0000000000006046 [ 28.525895] RDX: 00007f14a0c82000 RSI: 000000000000001e RDI: 00007f14a0c8d000 [ 28.526290] RBP: 000000000000006f R08: 0000000000000004 R09: 000000000014a000 [ 28.526681] R10: 0000000000000008 R11: 0000000000000246 R12: 028f5c28f5c28f5c [ 28.527067] R13: 8f5c28f5c28f5c29 R14: 0000000000011046 R15: 00007f14a0c946c0 [ 28.527449] </TASK> [ 28.527600] ---[ end trace 0000000000000000 ]--- To be able to delete this entry, clear its dirty mark before invalidate_inode_pages2_range(). [1] https://lore.kernel.org/linux-xfs/20230321151339.GA11376@frogsfrogsfrogs/
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:23 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f80e1668888f34c0764822e74953c997daf2ccdb , < fac05f800abb63dc4d7cc48fe7edf16e0520dc1f (git)
Affected: f80e1668888f34c0764822e74953c997daf2ccdb , < f76b3a32879de215ced3f8c754c4077b0c2f79e3 (git)
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Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.2.11 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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Show details on NVD website
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          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfsdax: force clear dirty mark if CoW\n\nXFS allows CoW on non-shared extents to combat fragmentation[1].  The old\nnon-shared extent could be mwrited before, its dax entry is marked dirty. \n\nThis results in a WARNing:\n\n[   28.512349] ------------[ cut here ]------------\n[   28.512622] WARNING: CPU: 2 PID: 5255 at fs/dax.c:390 dax_insert_entry+0x342/0x390\n[   28.513050] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache netfs nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables\n[   28.515462] CPU: 2 PID: 5255 Comm: fsstress Kdump: loaded Not tainted 6.3.0-rc1-00001-g85e1481e19c1-dirty #117\n[   28.515902] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS Arch Linux 1.16.1-1-1 04/01/2014\n[   28.516307] RIP: 0010:dax_insert_entry+0x342/0x390\n[   28.516536] Code: 30 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 48 8b 45 20 48 83 c0 01 e9 e2 fe ff ff 48 8b 45 20 48 83 c0 01 e9 cd fe ff ff \u003c0f\u003e 0b e9 53 ff ff ff 48 8b 7c 24 08 31 f6 e8 1b 61 a1 00 eb 8c 48\n[   28.517417] RSP: 0000:ffffc9000845fb18 EFLAGS: 00010086\n[   28.517721] RAX: 0000000000000053 RBX: 0000000000000155 RCX: 000000000018824b\n[   28.518113] RDX: 0000000000000000 RSI: ffffffff827525a6 RDI: 00000000ffffffff\n[   28.518515] RBP: ffffea00062092c0 R08: 0000000000000000 R09: ffffc9000845f9c8\n[   28.518905] R10: 0000000000000003 R11: ffffffff82ddb7e8 R12: 0000000000000155\n[   28.519301] R13: 0000000000000000 R14: 000000000018824b R15: ffff88810cfa76b8\n[   28.519703] FS:  00007f14a0c94740(0000) GS:ffff88817bd00000(0000) knlGS:0000000000000000\n[   28.520148] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   28.520472] CR2: 00007f14a0c8d000 CR3: 000000010321c004 CR4: 0000000000770ee0\n[   28.520863] PKRU: 55555554\n[   28.521043] Call Trace:\n[   28.521219]  \u003cTASK\u003e\n[   28.521368]  dax_fault_iter+0x196/0x390\n[   28.521595]  dax_iomap_pte_fault+0x19b/0x3d0\n[   28.521852]  __xfs_filemap_fault+0x234/0x2b0\n[   28.522116]  __do_fault+0x30/0x130\n[   28.522334]  do_fault+0x193/0x340\n[   28.522586]  __handle_mm_fault+0x2d3/0x690\n[   28.522975]  handle_mm_fault+0xe6/0x2c0\n[   28.523259]  do_user_addr_fault+0x1bc/0x6f0\n[   28.523521]  exc_page_fault+0x60/0x140\n[   28.523763]  asm_exc_page_fault+0x22/0x30\n[   28.524001] RIP: 0033:0x7f14a0b589ca\n[   28.524225] Code: c5 fe 7f 07 c5 fe 7f 47 20 c5 fe 7f 47 40 c5 fe 7f 47 60 c5 f8 77 c3 66 0f 1f 84 00 00 00 00 00 40 0f b6 c6 48 89 d1 48 89 fa \u003cf3\u003e aa 48 89 d0 c5 f8 77 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90\n[   28.525198] RSP: 002b:00007fff1dea1c98 EFLAGS: 00010202\n[   28.525505] RAX: 000000000000001e RBX: 000000000014a000 RCX: 0000000000006046\n[   28.525895] RDX: 00007f14a0c82000 RSI: 000000000000001e RDI: 00007f14a0c8d000\n[   28.526290] RBP: 000000000000006f R08: 0000000000000004 R09: 000000000014a000\n[   28.526681] R10: 0000000000000008 R11: 0000000000000246 R12: 028f5c28f5c28f5c\n[   28.527067] R13: 8f5c28f5c28f5c29 R14: 0000000000011046 R15: 00007f14a0c946c0\n[   28.527449]  \u003c/TASK\u003e\n[   28.527600] ---[ end trace 0000000000000000 ]---\n\n\nTo be able to delete this entry, clear its dirty mark before\ninvalidate_inode_pages2_range().\n\n[1] https://lore.kernel.org/linux-xfs/20230321151339.GA11376@frogsfrogsfrogs/"
          }
        ],
        "id": "CVE-2023-53306",
        "lastModified": "2026-06-17T06:44:48.187",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2023-53306",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:23:22.602517Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-09-16T17:15:36.370",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f76b3a32879de215ced3f8c754c4077b0c2f79e3"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/fac05f800abb63dc4d7cc48fe7edf16e0520dc1f"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T22:17:28+00:00",
      "cve": "CVE-2023-53306",
      "id": "CVE-2023-53306",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: fsdax: force clear dirty mark if CoW",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53306.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T01:44:59Z",
      "cve": "CVE-2023-53306",
      "id": "CVE-2023-53306",
      "initial_release_date": "2025-09-18T23:39:44Z",
      "product_status:known_not_affected": "523",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53306",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53306.json",
      "version": "10"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 5.5,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "NONE",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-53306",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-01-14T18:23:22.602517Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "description": "CWE-noinfo Not enough information",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-01-14T18:23:18.780Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "fs/dax.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "fac05f800abb63dc4d7cc48fe7edf16e0520dc1f",
                  "status": "affected",
                  "version": "f80e1668888f34c0764822e74953c997daf2ccdb",
                  "versionType": "git"
                },
                {
                  "lessThan": "f76b3a32879de215ced3f8c754c4077b0c2f79e3",
                  "status": "affected",
                  "version": "f80e1668888f34c0764822e74953c997daf2ccdb",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "fs/dax.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.2"
                },
                {
                  "lessThan": "6.2",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.2.*",
                  "status": "unaffected",
                  "version": "6.2.11",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.3",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.2.11",
                      "versionStartIncluding": "6.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.3",
                      "versionStartIncluding": "6.2",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfsdax: force clear dirty mark if CoW\n\nXFS allows CoW on non-shared extents to combat fragmentation[1].  The old\nnon-shared extent could be mwrited before, its dax entry is marked dirty. \n\nThis results in a WARNing:\n\n[   28.512349] ------------[ cut here ]------------\n[   28.512622] WARNING: CPU: 2 PID: 5255 at fs/dax.c:390 dax_insert_entry+0x342/0x390\n[   28.513050] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache netfs nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables\n[   28.515462] CPU: 2 PID: 5255 Comm: fsstress Kdump: loaded Not tainted 6.3.0-rc1-00001-g85e1481e19c1-dirty #117\n[   28.515902] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS Arch Linux 1.16.1-1-1 04/01/2014\n[   28.516307] RIP: 0010:dax_insert_entry+0x342/0x390\n[   28.516536] Code: 30 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 48 8b 45 20 48 83 c0 01 e9 e2 fe ff ff 48 8b 45 20 48 83 c0 01 e9 cd fe ff ff \u003c0f\u003e 0b e9 53 ff ff ff 48 8b 7c 24 08 31 f6 e8 1b 61 a1 00 eb 8c 48\n[   28.517417] RSP: 0000:ffffc9000845fb18 EFLAGS: 00010086\n[   28.517721] RAX: 0000000000000053 RBX: 0000000000000155 RCX: 000000000018824b\n[   28.518113] RDX: 0000000000000000 RSI: ffffffff827525a6 RDI: 00000000ffffffff\n[   28.518515] RBP: ffffea00062092c0 R08: 0000000000000000 R09: ffffc9000845f9c8\n[   28.518905] R10: 0000000000000003 R11: ffffffff82ddb7e8 R12: 0000000000000155\n[   28.519301] R13: 0000000000000000 R14: 000000000018824b R15: ffff88810cfa76b8\n[   28.519703] FS:  00007f14a0c94740(0000) GS:ffff88817bd00000(0000) knlGS:0000000000000000\n[   28.520148] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   28.520472] CR2: 00007f14a0c8d000 CR3: 000000010321c004 CR4: 0000000000770ee0\n[   28.520863] PKRU: 55555554\n[   28.521043] Call Trace:\n[   28.521219]  \u003cTASK\u003e\n[   28.521368]  dax_fault_iter+0x196/0x390\n[   28.521595]  dax_iomap_pte_fault+0x19b/0x3d0\n[   28.521852]  __xfs_filemap_fault+0x234/0x2b0\n[   28.522116]  __do_fault+0x30/0x130\n[   28.522334]  do_fault+0x193/0x340\n[   28.522586]  __handle_mm_fault+0x2d3/0x690\n[   28.522975]  handle_mm_fault+0xe6/0x2c0\n[   28.523259]  do_user_addr_fault+0x1bc/0x6f0\n[   28.523521]  exc_page_fault+0x60/0x140\n[   28.523763]  asm_exc_page_fault+0x22/0x30\n[   28.524001] RIP: 0033:0x7f14a0b589ca\n[   28.524225] Code: c5 fe 7f 07 c5 fe 7f 47 20 c5 fe 7f 47 40 c5 fe 7f 47 60 c5 f8 77 c3 66 0f 1f 84 00 00 00 00 00 40 0f b6 c6 48 89 d1 48 89 fa \u003cf3\u003e aa 48 89 d0 c5 f8 77 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90\n[   28.525198] RSP: 002b:00007fff1dea1c98 EFLAGS: 00010202\n[   28.525505] RAX: 000000000000001e RBX: 000000000014a000 RCX: 0000000000006046\n[   28.525895] RDX: 00007f14a0c82000 RSI: 000000000000001e RDI: 00007f14a0c8d000\n[   28.526290] RBP: 000000000000006f R08: 0000000000000004 R09: 000000000014a000\n[   28.526681] R10: 0000000000000008 R11: 0000000000000246 R12: 028f5c28f5c28f5c\n[   28.527067] R13: 8f5c28f5c28f5c29 R14: 0000000000011046 R15: 00007f14a0c946c0\n[   28.527449]  \u003c/TASK\u003e\n[   28.527600] ---[ end trace 0000000000000000 ]---\n\n\nTo be able to delete this entry, clear its dirty mark before\ninvalidate_inode_pages2_range().\n\n[1] https://lore.kernel.org/linux-xfs/20230321151339.GA11376@frogsfrogsfrogs/"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-09-16T16:11:45.592Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/fac05f800abb63dc4d7cc48fe7edf16e0520dc1f"
            },
            {
              "url": "https://git.kernel.org/stable/c/f76b3a32879de215ced3f8c754c4077b0c2f79e3"
            }
          ],
          "title": "fsdax: force clear dirty mark if CoW",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2023-53306",
        "datePublished": "2025-09-16T16:11:45.592Z",
        "dateReserved": "2025-09-16T08:09:37.994Z",
        "dateUpdated": "2026-01-14T18:32:56.347Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.