{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-53306 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53306 is a medium-severity denial of service vulnerability in Linux kernel, published on 16 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-53306 and fix it if it is affected.\n\nWhat it is: CVE-2023-53306 is a medium-severity denial of service vulnerability in Linux kernel, published on 16 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-53306 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-53306/ (Markdown: https://insights.sbomify.com/CVE-2023-53306/index.md)","id":"CVE-2023-53306","markdown":"https://insights.sbomify.com/CVE-2023-53306/index.md","name":"CVE-2023-53306","record":{"aliases":["BELL-CVE-2023-53306","DEBIAN-CVE-2023-53306","GHSA-9247-9gc6-2w2p","UBUNTU-CVE-2023-53306"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A flaw in the Linux kernel's fsdax subsystem can trigger a kernel warning and potential crash during Copy-on-Write operations on XFS filesystems.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"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\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/","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"fsdax: force clear dirty mark if CoW","id":"CVE-2023-53306","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails","id":"CVE-2023-53307"},"packages":[],"prev":{"headline":"Bluetooth: L2CAP: Fix use-after-free","id":"CVE-2023-53305"},"products":["Linux"],"published":"2025-09-16","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A flaw in the Linux kernel's fsdax subsystem can trigger a kernel warning and potential crash during Copy-on-Write operations on XFS filesystems.","url":"https://insights.sbomify.com/CVE-2023-53306/"}