Answer in brief
CVE-2026-90205 records a High severity (CVSS 7.8) vulnerability in ocfs2: validate orphan slot during inode read. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), 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 7.8. 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), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <c6c908f9b4edfb04534b15573168ae038f7a9cbf || >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <3d7c4b7ce7b4baedfd8699fa692cd95f77d332de || >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <b2d31acbd3b182755b019183fb46949ba5e39b9f | c6c908f9b4edfb04534b15573168ae038f7a9cbf, 3d7c4b7ce7b4baedfd8699fa692cd95f77d332de, b2d31acbd3b182755b019183fb46949ba5e39b9f |
| Linux/Linuxgeneric | 2.6.16 | Not reported |
| Linux/Linuxgeneric | >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <f535a34831f8325950933b401c76bfa99624419c || >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <dea50e8049b0db2eb3d468e2505034962e81d8cd || >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <c6c908f9b4edfb04534b15573168ae038f7a9cbf || >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <3d7c4b7ce7b4baedfd8699fa692cd95f77d332de || >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <b2d31acbd3b182755b019183fb46949ba5e39b9f | f535a34831f8325950933b401c76bfa99624419c, dea50e8049b0db2eb3d468e2505034962e81d8cd, c6c908f9b4edfb04534b15573168ae038f7a9cbf, 3d7c4b7ce7b4baedfd8699fa692cd95f77d332de, b2d31acbd3b182755b019183fb46949ba5e39b9f |
| Linux/Linuxgeneric | >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <edd76be702c0f8702472888425237fb9219e1c43 || >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <f535a34831f8325950933b401c76bfa99624419c || >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <dea50e8049b0db2eb3d468e2505034962e81d8cd || >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <c6c908f9b4edfb04534b15573168ae038f7a9cbf || >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <3d7c4b7ce7b4baedfd8699fa692cd95f77d332de || >=b4df6ed8db0c387d38292e31f00adc4cd297ed5a <b2d31acbd3b182755b019183fb46949ba5e39b9f | edd76be702c0f8702472888425237fb9219e1c43, f535a34831f8325950933b401c76bfa99624419c, dea50e8049b0db2eb3d468e2505034962e81d8cd, c6c908f9b4edfb04534b15573168ae038f7a9cbf, 3d7c4b7ce7b4baedfd8699fa692cd95f77d332de, b2d31acbd3b182755b019183fb46949ba5e39b9f |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 17, 2026
In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate orphan slot during inode read Patch series "ocfs2: validate active orphan slots during inode read". OCFS2 trusts active ordinary and append-DIO orphan slots read from dinodes. A corrupted slot can therefore index osb_orphan_wipes or the slot-local system-inode cache outside their allocations before the corruption is reported. Patch 1 validates the ordinary orphan slot used by inode wipe processing. Patch 2 validates the append-DIO orphan slot used by DIO completion and orphan recovery. Both checks reject corrupt metadata at the existing inode validation boundary. This patch (of 2): [BUG] A corrupted dinode with OCFS2_ORPHANED_FL can carry an i_orphaned_slot outside the mounted filesystem slot range. ocfs2_wipe_inode() uses it to index osb_orphan_wipes before looking up the orphan directory, causing an out-of-bounds memory access. BUG: KASAN: slab-use-after-free in ocfs2_get_system_file_inode+0x780/0x820 fs/ocfs2/sysfile.c:102 Read of size 8 at addr ffff88800b767c00 by task kworker/u8:3/85 Call Trace: ... ocfs2_get_system_file_inode+0x780/0x820 fs/ocfs2/sysfile.c:102 ocfs2_wipe_inode+0x292/0xf70 fs/ocfs2/inode.c:840 ocfs2_delete_inode fs/ocfs2/inode.c:1155 [inline] ocfs2_evict_inode+0x6c9/0x1170 fs/ocfs2/inode.c:1295 evict+0x38e/0x8f0 fs/inode.c:810 iput_final fs/inode.c:1914 [inline] iput fs/inode.c:1966 [inline] iput+0x55b/0x8b0 fs/inode.c:1926 ocfs2_recover_orphans+0x610/0xe40 fs/ocfs2/journal.c:2374 ocfs2_complete_recovery+0x5af/0xd00 fs/ocfs2/journal.c:1373 ... [CAUSE] ocfs2_validate_inode_block() validates i_suballoc_slot but leaves the active ordinary orphan slot unchecked. Downstream consumers assume that the value is smaller than osb->max_slots. [FIX] Reject an active i_orphaned_slot outside the slot range during dinode validation, before the inode reaches orphan wipe processing.
Quoted source text, attributed separately from HOL analysis.