Answer in brief
CVE-2026-97551 records a Unknown severity vulnerability in xfs: initialise args->total for parent pointer updates. 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.
A CVSS score is not reported in the current record. 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 | >=b7c62d90c12c6cc86f10b8a62cefe0029374b6ff <9ad85bce62cadfdf4242f6e6bbff2a52e51d30f1 || >=b7c62d90c12c6cc86f10b8a62cefe0029374b6ff <c66e138af626cad4210da449996ae9e07ee63add || >=b7c62d90c12c6cc86f10b8a62cefe0029374b6ff <ac9032882d673dd6679e1d873a2dc0131a1aeb43 || >=b7c62d90c12c6cc86f10b8a62cefe0029374b6ff <8e4ebb6afaa34bd2e8ce52da231003d24111c2d6 | 9ad85bce62cadfdf4242f6e6bbff2a52e51d30f1, c66e138af626cad4210da449996ae9e07ee63add, ac9032882d673dd6679e1d873a2dc0131a1aeb43, 8e4ebb6afaa34bd2e8ce52da231003d24111c2d6 |
| Linux/Linuxgeneric | 6.10 | Not reported |
Published upstream
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 25, 2026
In the Linux kernel, the following vulnerability has been resolved: xfs: initialise args->total for parent pointer updates xfs_parent_da_args_init() builds an xfs_da_args from a zeroed xfs_parent_args (kmem_cache_zalloc), leaving args->total == 0. xfs_da_grow_inode_int() treats that field as a running block reservation and subtracts from it; because it is an xfs_extlen_t (uint32_t), the first attr-fork growth wraps it to ~0U. That defeats the free-space check in xfs_alloc_space_available(), and when it coincides with an AG that has exactly zero available blocks the allocation is clamped to maxlen 0 and returns -ENOSPC, which xfs_defer_finish_noroll() escalates to a filesystem shutdown. Set args->total the way the log recovery path does (xfs_attri_recover_work(), xfs_attr_item.c:706), in the add and replace paths that can grow the fork. Removals and lookups never grow it, so they leave the field alone, matching that switch.
Quoted source text, attributed separately from HOL analysis.