{ "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-2026-80528", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80528", "idYear": 2026, "status": "PUBLISHED", "publishedAt": "2026-08-26T14:37:06.781Z", "updatedAt": "2026-10-16T19:26:24.829Z", "importedAt": "2026-10-24T01:58:30.346Z", "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": "ceph: avoid fs reclaim while using current->journal_info", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: avoid fs reclaim while using current->journal_info\n\nhandle_reply() stores a `ceph_mds_request` pointer in\n`current->journal_info` while filling the inode and dentry cache from\nan MDS reply.\n\nAn allocation in this section can enter direct reclaim and prune\ndentries from another filesystem. If this dirties an ext4 inode, ext4\nstarts a JBD2 transaction. JBD2 interprets the Ceph request in\n`current->journal_info` as a journal handle and dereferences the\nrequest's `r_tid` as `h_transaction`, causing a kernel crash, e.g.:\n\n Unable to handle kernel paging request at virtual address 00000000077b4818\n [...]\n Internal error: Oops: 0000000096000004 [#1] SMP\n Modules linked in:\n CPU: 6 UID: 0 PID: 2699135 Comm: kworker/6:3 Tainted: G W 6.18.38-i3 #1113 NONE\n [...]\n Workqueue: ceph-msgr ceph_con_workfn\n pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : jbd2__journal_start+0x2c/0x208\n lr : __ext4_journal_start_sb+0x100/0x178\n [...]\n Call trace:\n jbd2__journal_start+0x2c/0x208 (P)\n __ext4_journal_start_sb+0x100/0x178\n ext4_dirty_inode+0x3c/0x90\n __mark_inode_dirty+0x58/0x400\n iput.part.0+0x2b0/0x370\n iput+0x18/0x30\n dentry_unlink_inode+0xc0/0x158\n __dentry_kill+0x80/0x250\n shrink_dentry_list+0x90/0x130\n prune_dcache_sb+0x60/0x98\n super_cache_scan+0xe8/0x190\n do_shrink_slab+0x174/0x388\n shrink_slab+0xd8/0x4c0\n shrink_node+0x31c/0x908\n do_try_to_free_pages+0xd0/0x508\n try_to_free_pages+0x11c/0x238\n __alloc_frozen_pages_noprof+0x4d0/0xdd0\n __folio_alloc_noprof+0x18/0x70\n __filemap_get_folio+0x248/0x440\n ceph_readdir_prepopulate+0x570/0x9e8\n mds_dispatch+0x1424/0x1ba0\n ceph_con_process_message+0x74/0xa0\n ceph_con_v1_try_read+0x3a0/0x1510\n ceph_con_workfn+0x260/0x460\n\nEnter a scoped NOFS allocation context and leave it after clearing\n`journal_info`. This prevents filesystem reclaim from recursing into\nanother filesystem while the field contains Ceph-private data.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "315f24088048a51eed341c53be66ea477a3c7d16", "status": "affected", "versionType": "git", "lessThan": "ca5fa2380dd90a0adb01580fa6225025351a90f6" }, { "version": "315f24088048a51eed341c53be66ea477a3c7d16", "status": "affected", "versionType": "git", "lessThan": "00c12f57a87f537fa8779258fb3a03003a99963e" }, { "version": "315f24088048a51eed341c53be66ea477a3c7d16", "status": "affected", "versionType": "git", "lessThan": "4dbb2c02558e71f93510a6461d7e798b67426b49" }, { "version": "315f24088048a51eed341c53be66ea477a3c7d16", "status": "affected", "versionType": "git", "lessThan": "c8a21660c3b90864c391164eea5622e7b5b2897c" }, { "version": "315f24088048a51eed341c53be66ea477a3c7d16", "status": "affected", "versionType": "git", "lessThan": "47b745747b3aa39064724a642884f9df924ddf20" }, { "version": "315f24088048a51eed341c53be66ea477a3c7d16", "status": "affected", "versionType": "git", "lessThan": "79d95b43ca090426399651ed580dd9bf2db36ab8" }, { "version": "315f24088048a51eed341c53be66ea477a3c7d16", "status": "affected", "versionType": "git", "lessThan": "b6a0989613072499633e761a1536428a466de7d3" }, { "version": "315f24088048a51eed341c53be66ea477a3c7d16", "status": "affected", "versionType": "git", "lessThan": "5b602344a49e039e792ce5a8923bcc61412ee134" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.6", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.6" }, { "version": "5.10.266", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.217", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.184", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.153", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.105", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.18.46", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.18.*" }, { "version": "7.1.10", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "7.1.*" }, { "version": "7.2", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }