{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-23224", "tracking": { "current_release_date": "2026-04-02T15:46:56.819443Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-23224", "initial_release_date": "2026-02-18T15:39:03.187328Z", "revision_history": [ { "date": "2026-02-18T15:39:03.187328Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| Products created (3).| Products connected (3).| References created (3)." }, { "date": "2026-02-18T15:39:06.571096Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-02-18T16:27:39.244539Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| References created (3)." }, { "date": "2026-02-18T16:27:44.584085Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-02-18T18:44:05.352604Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Products connected (2)." }, { "date": "2026-02-18T18:44:09.673766Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-02-19T00:28:00.337085Z", "number": "7", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (13).| Product Identifiers created (5).| References created (3).| Vendor_assessment created." }, { "date": "2026-02-19T00:28:11.334438Z", "number": "8", "summary": "NCSC Score updated." }, { "date": "2026-02-19T00:59:38.307545Z", "number": "9", "summary": "Source created.| CVE status created. (valid)| Description created for source.| References created (5)." }, { "date": "2026-02-19T06:43:38.192703Z", "number": "10", "summary": "Description created for source." }, { "date": "2026-02-19T13:06:19.294099Z", "number": "11", "summary": "Source connected.| CVE status created. (valid)| Products connected (1).| References created (36)." }, { "date": "2026-02-19T13:06:21.463952Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-02-19T14:16:49.869179Z", "number": "13", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-02-19T14:17:01.043758Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-02-23T03:39:06.525391Z", "number": "15", "summary": "Products created (4).| Products connected (3).| Products removed (3).| References created (1)." }, { "date": "2026-02-23T03:39:16.154339Z", "number": "16", "summary": "NCSC Score updated." }, { "date": "2026-02-23T04:25:13.476443Z", "number": "17", "summary": "References created (1)." }, { "date": "2026-02-23T04:27:00.381399Z", "number": "18", "summary": "NCSC Score updated." }, { "date": "2026-02-23T18:19:43.988548Z", "number": "19", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1)." }, { "date": "2026-02-23T18:19:45.518166Z", "number": "20", "summary": "NCSC Score updated." }, { "date": "2026-02-23T18:43:44.069849Z", "number": "21", "summary": "Products connected (2).| Products removed (2)." }, { "date": "2026-02-23T18:43:48.042960Z", "number": "22", "summary": "NCSC Score updated." }, { "date": "2026-02-24T00:51:40.269622Z", "number": "23", "summary": "References created (1)." }, { "date": "2026-02-26T12:19:50.912021Z", "number": "24", "summary": "Product Remediations created (1)." }, { "date": "2026-02-26T12:19:57.764131Z", "number": "25", "summary": "NCSC Score updated." }, { "date": "2026-03-13T08:23:39.624766Z", "number": "26", "summary": "Products connected (1).| References created (2)." }, { "date": "2026-03-13T08:23:41.947017Z", "number": "27", "summary": "NCSC Score updated." }, { "date": "2026-03-16T10:37:33.436196Z", "number": "28", "summary": "References created (2)." }, { "date": "2026-03-18T15:27:28.273797Z", "number": "29", "summary": "CVSS created.| Products created (1).| Product Identifiers created (3).| Products connected (2).| CWES updated (1)." }, { "date": "2026-03-18T15:27:37.447442Z", "number": "30", "summary": "NCSC Score updated." }, { "date": "2026-03-19T09:08:18.045368Z", "number": "31", "summary": "Products connected (1).| References created (2)." }, { "date": "2026-03-19T09:08:20.351483Z", "number": "32", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:55:49.044651Z", "number": "33", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T09:55:51.725059Z", "number": "34", "summary": "NCSC Score updated." }, { "date": "2026-03-20T20:35:57.187764Z", "number": "35", "summary": "Products connected (1).| References created (4)." }, { "date": "2026-03-20T20:35:59.418917Z", "number": "36", "summary": "NCSC Score updated." }, { "date": "2026-03-25T01:06:13.755232Z", "number": "37", "summary": "References created (1)." }, { "date": "2026-03-25T01:06:18.110292Z", "number": "38", "summary": "NCSC Score updated." }, { "date": "2026-03-25T10:17:41.322787Z", "number": "39", "summary": "Products connected (1).| References created (4)." }, { "date": "2026-03-25T10:17:43.995795Z", "number": "40", "summary": "NCSC Score updated." }, { "date": "2026-03-26T11:44:08.287329Z", "number": "41", "summary": "References created (1)." }, { "date": "2026-03-26T11:44:10.642791Z", "number": "42", "summary": "NCSC Score updated." }, { "date": "2026-03-27T11:56:21.747509Z", "number": "43", "summary": "References created (2)." }, { "date": "2026-03-27T11:56:23.931185Z", "number": "44", "summary": "NCSC Score updated." }, { "date": "2026-03-30T11:11:42.487988Z", "number": "45", "summary": "References created (4)." }, { "date": "2026-03-30T11:11:44.774476Z", "number": "46", "summary": "NCSC Score updated." }, { "date": "2026-03-31T11:08:42.241969Z", "number": "47", "summary": "References created (1)." }, { "date": "2026-03-31T11:08:44.147363Z", "number": "48", "summary": "NCSC Score updated." }, { "date": "2026-04-02T08:52:20.220468Z", "number": "49", "summary": "NCSC Score updated." }, { "date": "2026-04-02T12:13:26.213856Z", "number": "50", "summary": "References created (1)." }, { "date": "2026-04-02T12:13:29.055611Z", "number": "51", "summary": "NCSC Score updated." }, { "date": "2026-04-02T15:25:20.838863Z", "number": "52", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (3).| Product Identifiers created (3).| References created (4).| CWES updated (1)." }, { "date": "2026-04-02T15:25:22.860049Z", "number": "53", "summary": "NCSC Score updated." }, { "date": "2026-04-02T15:41:38.957854Z", "number": "54", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (10).| References created (4)." } ], "status": "interim", "version": "54" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-1330296", "product_identification_helper": { "cpe": "cpe:/o:amazon:linux_2:-" } } } ], "category": "product_name", "name": "Amazon Linux 2" } ], "category": "vendor", "name": "Amazon" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-1295663", "product_identification_helper": { "cpe": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "Debian Linux" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/*", "product": { "name": "vers:deb/*", "product_id": "CSAFPID-2036022" } } ], "category": "product_name", "name": "linux" } ], "category": "product_family", "name": "bookworm" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/*", "product": { "name": "vers:deb/*", "product_id": "CSAFPID-2036023" } } ], "category": "product_name", "name": "linux" } ], "category": "product_family", "name": "bullseye" } ], "category": "vendor", "name": "Debian" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:git/fb176750266a3d7f42ebdcf28e8ba40350b27847|<1caf50ce4af096d0280d59a31abdd85703cd995c", "product": { "name": "vers:git/fb176750266a3d7f42ebdcf28e8ba40350b27847|<1caf50ce4af096d0280d59a31abdd85703cd995c", "product_id": "CSAFPID-5669163" } }, { "category": "product_version_range", "name": "vers:git/fb176750266a3d7f42ebdcf28e8ba40350b27847|=6.12|<6.12.72", "product": { "name": "vers:unknown/>=6.12|<6.12.72", "product_id": "CSAFPID-5844407", "product_identification_helper": { "cpe": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=6.13|<6.18.11", "product": { "name": "vers:unknown/>=6.13|<6.18.11", "product_id": "CSAFPID-5839350", "product_identification_helper": { "cpe": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=6.19|<6.19.1", "product": { "name": "vers:unknown/>=6.19|<6.19.1", "product_id": "CSAFPID-5754847", "product_identification_helper": { "cpe": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "linux_kernel" } ], "category": "vendor", "name": "Linux" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-1330297", "product_identification_helper": { "cpe": "cpe:/o:linux:linux_kernel:-" } } } ], "category": "product_name", "name": "Open Source Linux Kernel" } ], "category": "vendor", "name": "Open Source" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-1317177", "product_identification_helper": { "cpe": "cpe:/o:oracle:linux:-" } } } ], "category": "product_name", "name": "Oracle Linux" } ], "category": "vendor", "name": "Oracle" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/10", "product": { "name": "vers:rpm/10", "product_id": "CSAFPID-2858634", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:10" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 10" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/6", "product": { "name": "vers:rpm/6", "product_id": "CSAFPID-1439321", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:6" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 6" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/7", "product": { "name": "vers:rpm/7", "product_id": "CSAFPID-1439315", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:7" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 7" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/8", "product": { "name": "vers:rpm/8", "product_id": "CSAFPID-1439317", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:8" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 8" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/9", "product": { "name": "vers:rpm/9", "product_id": "CSAFPID-1439319", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:9" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 9" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2858635" } } ], "category": "product_name", "name": "kernel" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 10" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453376" } } ], "category": "product_name", "name": "kernel" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 6" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453377" } } ], "category": "product_name", "name": "kernel" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453378" } } ], "category": "product_name", "name": "kernel-rt" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 7" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453379" } } ], "category": "product_name", "name": "kernel" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453380" } } ], "category": "product_name", "name": "kernel-rt" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 8" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453381" } } ], "category": "product_name", "name": "kernel" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1453382" } } ], "category": "product_name", "name": "kernel-rt" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 9" } ], "category": "vendor", "name": "Red Hat" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-1317174", "product_identification_helper": { "cpe": "cpe:/o:suse:suse_linux:-" } } } ], "category": "product_name", "name": "SuSE Linux" } ], "category": "vendor", "name": "SUSE" }, { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:microsoft/*", "product": { "name": "vers:microsoft/*", "product_id": "CSAFPID-5674307", "product_identification_helper": { "cpe": "cpe:2.3:a:microsoft:azl3_kernel_6.6.121.1-1:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "azl3 kernel 6.6.121.1-1 on Azure Linux 3.0" } ], "category": "product_family", "name": "Open Source Software" } ], "category": "vendor", "name": "Microsoft" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-23224", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix UAF issue for file-backed mounts w/ directio option\n\n[ 9.269940][ T3222] Call trace:\n[ 9.269948][ T3222] ext4_file_read_iter+0xac/0x108\n[ 9.269979][ T3222] vfs_iocb_iter_read+0xac/0x198\n[ 9.269993][ T3222] erofs_fileio_rq_submit+0x12c/0x180\n[ 9.270008][ T3222] erofs_fileio_submit_bio+0x14/0x24\n[ 9.270030][ T3222] z_erofs_runqueue+0x834/0x8ac\n[ 9.270054][ T3222] z_erofs_read_folio+0x120/0x220\n[ 9.270083][ T3222] filemap_read_folio+0x60/0x120\n[ 9.270102][ T3222] filemap_fault+0xcac/0x1060\n[ 9.270119][ T3222] do_pte_missing+0x2d8/0x1554\n[ 9.270131][ T3222] handle_mm_fault+0x5ec/0x70c\n[ 9.270142][ T3222] do_page_fault+0x178/0x88c\n[ 9.270167][ T3222] do_translation_fault+0x38/0x54\n[ 9.270183][ T3222] do_mem_abort+0x54/0xac\n[ 9.270208][ T3222] el0_da+0x44/0x7c\n[ 9.270227][ T3222] el0t_64_sync_handler+0x5c/0xf4\n[ 9.270253][ T3222] el0t_64_sync+0x1bc/0x1c0\n\nEROFS may encounter above panic when enabling file-backed mount w/\ndirectio mount option, the root cause is it may suffer UAF in below\nrace condition:\n\n- z_erofs_read_folio wq s_dio_done_wq\n - z_erofs_runqueue\n - erofs_fileio_submit_bio\n - erofs_fileio_rq_submit\n - vfs_iocb_iter_read\n - ext4_file_read_iter\n - ext4_dio_read_iter\n - iomap_dio_rw\n : bio was submitted and return -EIOCBQUEUED\n - dio_aio_complete_work\n - dio_complete\n - dio->iocb->ki_complete (erofs_fileio_ki_complete())\n - kfree(rq)\n : it frees iocb, iocb.ki_filp can be UAF in file_accessed().\n - file_accessed\n : access NULL file point\n\nIntroduce a reference count in struct erofs_fileio_rq, and initialize it\nas two, both erofs_fileio_ki_complete() and erofs_fileio_rq_submit() will\ndecrease reference count, the last one decreasing the reference count\nto zero will free rq.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-23224" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix UAF issue for file-backed mounts w/ directio option\n\n[ 9.269940][ T3222] Call trace:\n[ 9.269948][ T3222] ext4_file_read_iter+0xac/0x108\n[ 9.269979][ T3222] vfs_iocb_iter_read+0xac/0x198\n[ 9.269993][ T3222] erofs_fileio_rq_submit+0x12c/0x180\n[ 9.270008][ T3222] erofs_fileio_submit_bio+0x14/0x24\n[ 9.270030][ T3222] z_erofs_runqueue+0x834/0x8ac\n[ 9.270054][ T3222] z_erofs_read_folio+0x120/0x220\n[ 9.270083][ T3222] filemap_read_folio+0x60/0x120\n[ 9.270102][ T3222] filemap_fault+0xcac/0x1060\n[ 9.270119][ T3222] do_pte_missing+0x2d8/0x1554\n[ 9.270131][ T3222] handle_mm_fault+0x5ec/0x70c\n[ 9.270142][ T3222] do_page_fault+0x178/0x88c\n[ 9.270167][ T3222] do_translation_fault+0x38/0x54\n[ 9.270183][ T3222] do_mem_abort+0x54/0xac\n[ 9.270208][ T3222] el0_da+0x44/0x7c\n[ 9.270227][ T3222] el0t_64_sync_handler+0x5c/0xf4\n[ 9.270253][ T3222] el0t_64_sync+0x1bc/0x1c0\n\nEROFS may encounter above panic when enabling file-backed mount w/\ndirectio mount option, the root cause is it may suffer UAF in below\nrace condition:\n\n- z_erofs_read_folio wq s_dio_done_wq\n - z_erofs_runqueue\n - erofs_fileio_submit_bio\n - erofs_fileio_rq_submit\n - vfs_iocb_iter_read\n - ext4_file_read_iter\n - ext4_dio_read_iter\n - iomap_dio_rw\n : bio was submitted and return -EIOCBQUEUED\n - dio_aio_complete_work\n - dio_complete\n - dio->iocb->ki_complete (erofs_fileio_ki_complete())\n - kfree(rq)\n : it frees iocb, iocb.ki_filp can be UAF in file_accessed().\n - file_accessed\n : access NULL file point\n\nIntroduce a reference count in struct erofs_fileio_rq, and initialize it\nas two, both erofs_fileio_ki_complete() and erofs_fileio_rq_submit() will\ndecrease reference count, the last one decreasing the reference count\nto zero will free rq.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-23224" }, { "category": "description", "text": "No description is available for this CVE.", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-23224" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix UAF issue for file-backed mounts w/ directio option\n\n[ 9.269940][ T3222] Call trace:\n[ 9.269948][ T3222] ext4_file_read_iter+0xac/0x108\n[ 9.269979][ T3222] vfs_iocb_iter_read+0xac/0x198\n[ 9.269993][ T3222] erofs_fileio_rq_submit+0x12c/0x180\n[ 9.270008][ T3222] erofs_fileio_submit_bio+0x14/0x24\n[ 9.270030][ T3222] z_erofs_runqueue+0x834/0x8ac\n[ 9.270054][ T3222] z_erofs_read_folio+0x120/0x220\n[ 9.270083][ T3222] filemap_read_folio+0x60/0x120\n[ 9.270102][ T3222] filemap_fault+0xcac/0x1060\n[ 9.270119][ T3222] do_pte_missing+0x2d8/0x1554\n[ 9.270131][ T3222] handle_mm_fault+0x5ec/0x70c\n[ 9.270142][ T3222] do_page_fault+0x178/0x88c\n[ 9.270167][ T3222] do_translation_fault+0x38/0x54\n[ 9.270183][ T3222] do_mem_abort+0x54/0xac\n[ 9.270208][ T3222] el0_da+0x44/0x7c\n[ 9.270227][ T3222] el0t_64_sync_handler+0x5c/0xf4\n[ 9.270253][ T3222] el0t_64_sync+0x1bc/0x1c0\n\nEROFS may encounter above panic when enabling file-backed mount w/\ndirectio mount option, the root cause is it may suffer UAF in below\nrace condition:\n\n- z_erofs_read_folio wq s_dio_done_wq\n - z_erofs_runqueue\n - erofs_fileio_submit_bio\n - erofs_fileio_rq_submit\n - vfs_iocb_iter_read\n - ext4_file_read_iter\n - ext4_dio_read_iter\n - iomap_dio_rw\n : bio was submitted and return -EIOCBQUEUED\n - dio_aio_complete_work\n - dio_complete\n - dio->iocb->ki_complete (erofs_fileio_ki_complete())\n - kfree(rq)\n : it frees iocb, iocb.ki_filp can be UAF in file_accessed().\n - file_accessed\n : access NULL file point\n\nIntroduce a reference count in struct erofs_fileio_rq, and initialize it\nas two, both erofs_fileio_ki_complete() and erofs_fileio_rq_submit() will\ndecrease reference count, the last one decreasing the reference count\nto zero will free rq.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-23224.json?alt=media" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved: erofs: fix UAF issue for file-backed mounts w/ directio option [ 9.269940][ T3222] Call trace: [ 9.269948][ T3222] ext4_file_read_iter+0xac/0x108 [ 9.269979][ T3222] vfs_iocb_iter_read+0xac/0x198 [ 9.269993][ T3222] erofs_fileio_rq_submit+0x12c/0x180 [ 9.270008][ T3222] erofs_fileio_submit_bio+0x14/0x24 [ 9.270030][ T3222] z_erofs_runqueue+0x834/0x8ac [ 9.270054][ T3222] z_erofs_read_folio+0x120/0x220 [ 9.270083][ T3222] filemap_read_folio+0x60/0x120 [ 9.270102][ T3222] filemap_fault+0xcac/0x1060 [ 9.270119][ T3222] do_pte_missing+0x2d8/0x1554 [ 9.270131][ T3222] handle_mm_fault+0x5ec/0x70c [ 9.270142][ T3222] do_page_fault+0x178/0x88c [ 9.270167][ T3222] do_translation_fault+0x38/0x54 [ 9.270183][ T3222] do_mem_abort+0x54/0xac [ 9.270208][ T3222] el0_da+0x44/0x7c [ 9.270227][ T3222] el0t_64_sync_handler+0x5c/0xf4 [ 9.270253][ T3222] el0t_64_sync+0x1bc/0x1c0 EROFS may encounter above panic when enabling file-backed mount w/ directio mount option, the root cause is it may suffer UAF in below race condition: - z_erofs_read_folio wq s_dio_done_wq - z_erofs_runqueue - erofs_fileio_submit_bio - erofs_fileio_rq_submit - vfs_iocb_iter_read - ext4_file_read_iter - ext4_dio_read_iter - iomap_dio_rw : bio was submitted and return -EIOCBQUEUED - dio_aio_complete_work - dio_complete - dio->iocb->ki_complete (erofs_fileio_ki_complete()) - kfree(rq) : it frees iocb, iocb.ki_filp can be UAF in file_accessed(). - file_accessed : access NULL file point Introduce a reference count in struct erofs_fileio_rq, and initialize it as two, both erofs_fileio_ki_complete() and erofs_fileio_rq_submit() will decrease reference count, the last one decreasing the reference count to zero will free rq.", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-23224" }, { "category": "description", "text": "erofs: fix UAF issue for file-backed mounts w/ directio option", "title": "microsoft - https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Feb" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix UAF issue for file-backed mounts w/ directio option\n\n[ 9.269940][ T3222] Call trace:\n[ 9.269948][ T3222] ext4_file_read_iter+0xac/0x108\n[ 9.269979][ T3222] vfs_iocb_iter_read+0xac/0x198\n[ 9.269993][ T3222] erofs_fileio_rq_submit+0x12c/0x180\n[ 9.270008][ T3222] erofs_fileio_submit_bio+0x14/0x24\n[ 9.270030][ T3222] z_erofs_runqueue+0x834/0x8ac\n[ 9.270054][ T3222] z_erofs_read_folio+0x120/0x220\n[ 9.270083][ T3222] filemap_read_folio+0x60/0x120\n[ 9.270102][ T3222] filemap_fault+0xcac/0x1060\n[ 9.270119][ T3222] do_pte_missing+0x2d8/0x1554\n[ 9.270131][ T3222] handle_mm_fault+0x5ec/0x70c\n[ 9.270142][ T3222] do_page_fault+0x178/0x88c\n[ 9.270167][ T3222] do_translation_fault+0x38/0x54\n[ 9.270183][ T3222] do_mem_abort+0x54/0xac\n[ 9.270208][ T3222] el0_da+0x44/0x7c\n[ 9.270227][ T3222] el0t_64_sync_handler+0x5c/0xf4\n[ 9.270253][ T3222] el0t_64_sync+0x1bc/0x1c0\n\nEROFS may encounter above panic when enabling file-backed mount w/\ndirectio mount option, the root cause is it may suffer UAF in below\nrace condition:\n\n- z_erofs_read_folio wq s_dio_done_wq\n - z_erofs_runqueue\n - erofs_fileio_submit_bio\n - erofs_fileio_rq_submit\n - vfs_iocb_iter_read\n - ext4_file_read_iter\n - ext4_dio_read_iter\n - iomap_dio_rw\n : bio was submitted and return -EIOCBQUEUED\n - dio_aio_complete_work\n - dio_complete\n - dio->iocb->ki_complete (erofs_fileio_ki_complete())\n - kfree(rq)\n : it frees iocb, iocb.ki_filp can be UAF in file_accessed().\n - file_accessed\n : access NULL file point\n\nIntroduce a reference count in struct erofs_fileio_rq, and initialize it\nas two, both erofs_fileio_ki_complete() and erofs_fileio_rq_submit() will\ndecrease reference count, the last one decreasing the reference count\nto zero will free rq.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-23224" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix UAF issue for file-backed mounts w/ directio option\n\n[ 9.269940][ T3222] Call trace:\n[ 9.269948][ T3222] ext4_file_read_iter+0xac/0x108\n[ 9.269979][ T3222] vfs_iocb_iter_read+0xac/0x198\n[ 9.269993][ T3222] erofs_fileio_rq_submit+0x12c/0x180\n[ 9.270008][ T3222] erofs_fileio_submit_bio+0x14/0x24\n[ 9.270030][ T3222] z_erofs_runqueue+0x834/0x8ac\n[ 9.270054][ T3222] z_erofs_read_folio+0x120/0x220\n[ 9.270083][ T3222] filemap_read_folio+0x60/0x120\n[ 9.270102][ T3222] filemap_fault+0xcac/0x1060\n[ 9.270119][ T3222] do_pte_missing+0x2d8/0x1554\n[ 9.270131][ T3222] handle_mm_fault+0x5ec/0x70c\n[ 9.270142][ T3222] do_page_fault+0x178/0x88c\n[ 9.270167][ T3222] do_translation_fault+0x38/0x54\n[ 9.270183][ T3222] do_mem_abort+0x54/0xac\n[ 9.270208][ T3222] el0_da+0x44/0x7c\n[ 9.270227][ T3222] el0t_64_sync_handler+0x5c/0xf4\n[ 9.270253][ T3222] el0t_64_sync+0x1bc/0x1c0\n\nEROFS may encounter above panic when enabling file-backed mount w/\ndirectio mount option, the root cause is it may suffer UAF in below\nrace condition:\n\n- z_erofs_read_folio wq s_dio_done_wq\n - z_erofs_runqueue\n - erofs_fileio_submit_bio\n - erofs_fileio_rq_submit\n - vfs_iocb_iter_read\n - ext4_file_read_iter\n - ext4_dio_read_iter\n - iomap_dio_rw\n : bio was submitted and return -EIOCBQUEUED\n - dio_aio_complete_work\n - dio_complete\n - dio->iocb->ki_complete (erofs_fileio_ki_complete())\n - kfree(rq)\n : it frees iocb, iocb.ki_filp can be UAF in file_accessed().\n - file_accessed\n : access NULL file point\n\nIntroduce a reference count in struct erofs_fileio_rq, and initialize it\nas two, both erofs_fileio_ki_complete() and erofs_fileio_rq_submit() will\ndecrease reference count, the last one decreasing the reference count\nto zero will free rq.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/23xxx/CVE-2026-23224.json" }, { "category": "other", "text": "0.00013", "title": "EPSS" }, { "category": "other", "text": "4.0", "title": "NCSC Score" }, { "category": "other", "text": "VENDOR FIX as product remediation category", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "The value of the most recent EPSS score, Is related to a product by vendor Linux, Is related to (a version of) product Linux Kernel, Is related to a product by vendor Debian", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 3\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-2858634", "CSAFPID-2858635", "CSAFPID-1330297", "CSAFPID-1518627", "CSAFPID-5669160", "CSAFPID-5669161", "CSAFPID-5669162", "CSAFPID-5669163", "CSAFPID-5674307", "CSAFPID-1295663", "CSAFPID-5754847", "CSAFPID-5839350", "CSAFPID-5844407", "CSAFPID-1317174", "CSAFPID-1330296", "CSAFPID-1317177" ], "known_not_affected": [ "CSAFPID-5618223", "CSAFPID-5629416", "CSAFPID-5629417", "CSAFPID-1439315", "CSAFPID-1439317", "CSAFPID-1439319", "CSAFPID-1439321", "CSAFPID-1453376", "CSAFPID-1453377", "CSAFPID-1453378", "CSAFPID-1453379", "CSAFPID-1453380", "CSAFPID-1453381", "CSAFPID-1453382", "CSAFPID-1518628", "CSAFPID-5669083", "CSAFPID-2036022", "CSAFPID-2036023" ] }, "references": [ { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-23224" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/23xxx/CVE-2026-23224.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23224" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-23224" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-23224" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-23224" }, { "category": "external", "summary": "Source raw - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23224.json" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-23224.json?alt=media" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0462.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-23224" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - microsoft", "url": "https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Feb" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-23224" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/23xxx/CVE-2026-23224.json" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://git.kernel.org/stable/c/ae385826840a3c8e09bf38cac90adcd690716f57" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://git.kernel.org/stable/c/d741534302f71c511eb0bb670b92eaa7df4a0aec" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://git.kernel.org/stable/c/b2ee5e4d5446babd23ff7beb4e636be0fb3ea5aa" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-23224" }, { "category": "external", "summary": "Reference - osv; redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23224" }, { "category": "external", "summary": "Reference - redhat", "url": "https://lore.kernel.org/linux-cve-announce/2026021807-CVE-2026-23224-b534@gregkh/T" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23224.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0462.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0462" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021859-CVE-2025-71225-44de@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021859-CVE-2025-71226-5662@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021859-CVE-2025-71227-949c@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021859-CVE-2025-71228-d43d@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021802-CVE-2025-71229-81bd@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021804-CVE-2025-71230-8e25@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021805-CVE-2025-71231-5cc3@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021805-CVE-2025-71232-8ee0@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021805-CVE-2025-71233-0c35@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021805-CVE-2025-71234-3bb7@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021805-CVE-2025-71235-b233@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021806-CVE-2025-71236-26df@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021806-CVE-2025-71237-545a@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021830-CVE-2026-23211-10d0@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021832-CVE-2026-23212-adae@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021800-CVE-2026-23213-c699@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021800-CVE-2026-23214-c822@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021800-CVE-2026-23215-3294@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021800-CVE-2026-23216-6c63@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021800-CVE-2026-23217-f399@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021801-CVE-2026-23218-4114@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021801-CVE-2026-23219-3569@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021806-CVE-2026-23220-efda@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021806-CVE-2026-23221-43ae@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021806-CVE-2026-23222-3958@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021806-CVE-2026-23223-e3d3@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021807-CVE-2026-23224-b534@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021807-CVE-2026-23225-2a27@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021807-CVE-2026-23226-438c@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021807-CVE-2026-23227-6986@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021807-CVE-2026-23228-647c@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021808-CVE-2026-23229-9dfe@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026021808-CVE-2026-23230-8d0e@gregkh/" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv", "url": "https://git.kernel.org/stable/c/1caf50ce4af096d0280d59a31abdd85703cd995c" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.debian.org/debian-security-announce/2026/msg00071.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.debian.org/debian-security-announce/2026/msg00072.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.debian.org/debian-lts-announce/2026/03/msg00003.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.debian.org/debian-lts-announce/2026/03/msg00002.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024746.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024715.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024771.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://alas.aws.amazon.com/AL2/ALAS2KERNEL-5.15-2026-099.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://alas.aws.amazon.com/AL2/ALAS2KERNEL-5.10-2026-114.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024766.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024803.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://linux.oracle.com/errata/ELSA-2026-50160.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024862.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024871.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024895.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024928.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024954.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024953.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024999.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024968.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024969.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024994.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/025054.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025086.html" } ], "remediations": [ { "category": "vendor_fix", "details": "CBL-Mariner Releases", "product_ids": [ "CSAFPID-5674307" ] } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-1295663", "CSAFPID-1317174", "CSAFPID-1317177", "CSAFPID-1330296", "CSAFPID-1330297", "CSAFPID-1518627", "CSAFPID-2858634", "CSAFPID-2858635", "CSAFPID-5669160", "CSAFPID-5669161", "CSAFPID-5669162", "CSAFPID-5669163", "CSAFPID-5674307", "CSAFPID-5754847", "CSAFPID-5839350", "CSAFPID-5844407" ] } ], "title": "CVE-2026-23224" } ] }