Answer in brief
CVE-2026-80528 records a Critical severity (CVSS 9.8) vulnerability in ceph: avoid fs reclaim while using current->journal_info. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=315f24088048a51eed341c53be66ea477a3c7d16 <ca5fa2380dd90a0adb01580fa6225025351a90f6 || >=315f24088048a51eed341c53be66ea477a3c7d16 <00c12f57a87f537fa8779258fb3a03003a99963e || >=315f24088048a51eed341c53be66ea477a3c7d16 <4dbb2c02558e71f93510a6461d7e798b67426b49 || >=315f24088048a51eed341c53be66ea477a3c7d16 <c8a21660c3b90864c391164eea5622e7b5b2897c || >=315f24088048a51eed341c53be66ea477a3c7d16 <47b745747b3aa39064724a642884f9df924ddf20 || >=315f24088048a51eed341c53be66ea477a3c7d16 <79d95b43ca090426399651ed580dd9bf2db36ab8 || >=315f24088048a51eed341c53be66ea477a3c7d16 <b6a0989613072499633e761a1536428a466de7d3 || >=315f24088048a51eed341c53be66ea477a3c7d16 <5b602344a49e039e792ce5a8923bcc61412ee134 | ca5fa2380dd90a0adb01580fa6225025351a90f6, 00c12f57a87f537fa8779258fb3a03003a99963e, 4dbb2c02558e71f93510a6461d7e798b67426b49, c8a21660c3b90864c391164eea5622e7b5b2897c, 47b745747b3aa39064724a642884f9df924ddf20, 79d95b43ca090426399651ed580dd9bf2db36ab8, b6a0989613072499633e761a1536428a466de7d3, 5b602344a49e039e792ce5a8923bcc61412ee134 |
| Linux/Linuxgeneric | 4.6 | Not reported |
Published upstream
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 26, 2026
In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while using current->journal_info handle_reply() stores a `ceph_mds_request` pointer in `current->journal_info` while filling the inode and dentry cache from an MDS reply. An allocation in this section can enter direct reclaim and prune dentries from another filesystem. If this dirties an ext4 inode, ext4 starts a JBD2 transaction. JBD2 interprets the Ceph request in `current->journal_info` as a journal handle and dereferences the request's `r_tid` as `h_transaction`, causing a kernel crash, e.g.: Unable to handle kernel paging request at virtual address 00000000077b4818 [...] Internal error: Oops: 0000000096000004 [#1] SMP Modules linked in: CPU: 6 UID: 0 PID: 2699135 Comm: kworker/6:3 Tainted: G W 6.18.38-i3 #1113 NONE [...] Workqueue: ceph-msgr ceph_con_workfn pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : jbd2__journal_start+0x2c/0x208 lr : __ext4_journal_start_sb+0x100/0x178 [...] Call trace: jbd2__journal_start+0x2c/0x208 (P) __ext4_journal_start_sb+0x100/0x178 ext4_dirty_inode+0x3c/0x90 __mark_inode_dirty+0x58/0x400 iput.part.0+0x2b0/0x370 iput+0x18/0x30 dentry_unlink_inode+0xc0/0x158 __dentry_kill+0x80/0x250 shrink_dentry_list+0x90/0x130 prune_dcache_sb+0x60/0x98 super_cache_scan+0xe8/0x190 do_shrink_slab+0x174/0x388 shrink_slab+0xd8/0x4c0 shrink_node+0x31c/0x908 do_try_to_free_pages+0xd0/0x508 try_to_free_pages+0x11c/0x238 __alloc_frozen_pages_noprof+0x4d0/0xdd0 __folio_alloc_noprof+0x18/0x70 __filemap_get_folio+0x248/0x440 ceph_readdir_prepopulate+0x570/0x9e8 mds_dispatch+0x1424/0x1ba0 ceph_con_process_message+0x74/0xa0 ceph_con_v1_try_read+0x3a0/0x1510 ceph_con_workfn+0x260/0x460 Enter a scoped NOFS allocation context and leave it after clearing `journal_info`. This prevents filesystem reclaim from recursing into another filesystem while the field contains Ceph-private data.
Quoted source text, attributed separately from HOL analysis.