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

Vulnerability from cvelistv5 – Published: 2025-09-16 16:11 – Updated: 2026-01-14 18:32
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
CWE
Assigner
References
Impacted products
Vendor Product Version
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)
Create a notification for this product.
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              "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"
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                "id": "CVE-2023-53306",
                "options": [
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                "timestamp": "2026-01-14T18:23:22.602517Z",
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        "title": "CISA ADP Vulnrichment"
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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/"
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        "dateUpdated": "2025-09-16T16:11:45.592Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fac05f800abb63dc4d7cc48fe7edf16e0520dc1f"
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        {
          "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",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53306\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-16T17:15:36.370\",\"lastModified\":\"2026-01-14T19:16:23.430\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"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/\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.2.11\",\"matchCriteriaId\":\"93C03C9A-798F-4CD5-912F-A436BFA0CC7E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"B8E3B0E8-FA27-4305-87BB-AF6C25B160CB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"A47F0FC3-CE52-4BA1-BA51-22F783938431\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3583026A-27EC-4A4C-850A-83F2AF970673\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.3:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"DC271202-7570-4505-89A4-D602D47BFD00\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.3:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"D413BB6D-4F74-4C7D-9163-47786619EF53\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/f76b3a32879de215ced3f8c754c4077b0c2f79e3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fac05f800abb63dc4d7cc48fe7edf16e0520dc1f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-53306\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:23:22.602517Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:23:18.780Z\"}}], \"cna\": {\"title\": \"fsdax: force clear dirty mark if CoW\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"f80e1668888f34c0764822e74953c997daf2ccdb\", \"lessThan\": \"fac05f800abb63dc4d7cc48fe7edf16e0520dc1f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f80e1668888f34c0764822e74953c997daf2ccdb\", \"lessThan\": \"f76b3a32879de215ced3f8c754c4077b0c2f79e3\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/dax.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.2\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.2\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.2.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.2.*\"}, {\"status\": \"unaffected\", \"version\": \"6.3\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/dax.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/fac05f800abb63dc4d7cc48fe7edf16e0520dc1f\"}, {\"url\": \"https://git.kernel.org/stable/c/f76b3a32879de215ced3f8c754c4077b0c2f79e3\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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/\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2.11\", \"versionStartIncluding\": \"6.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.3\", \"versionStartIncluding\": \"6.2\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-09-16T16:11:45.592Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-53306\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-14T18:32:56.347Z\", \"dateReserved\": \"2025-09-16T08:09:37.994Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-16T16:11:45.592Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.