{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-53306", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53306", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-09-16T16:11:45.592Z", "updatedAt": "2026-05-11T19:42:23.736Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "fsdax: force clear dirty mark if CoW", "summary": "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 <0f> 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] \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 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] \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/", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "f80e1668888f34c0764822e74953c997daf2ccdb", "status": "affected", "versionType": "git", "lessThan": "fac05f800abb63dc4d7cc48fe7edf16e0520dc1f" }, { "version": "f80e1668888f34c0764822e74953c997daf2ccdb", "status": "affected", "versionType": "git", "lessThan": "f76b3a32879de215ced3f8c754c4077b0c2f79e3" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.2", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.2" }, { "version": "6.2.11", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.2.*" }, { "version": "6.3", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }