xfs: initialise args->total for parent pointer updates
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.
CVE-2026-97551
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-97551
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "b7c62d90c12c6cc86f10b8a62cefe0029374b6ff",
"lessThan": "9ad85bce62cadfdf4242f6e6bbff2a52e51d30f1",
"versionType": "git"
},
{
"status": "affected",
"version": "b7c62d90c12c6cc86f10b8a62cefe0029374b6ff",
"lessThan": "c66e138af626cad4210da449996ae9e07ee63add",
"versionType": "git"
},
{
"status": "affected",
"version": "b7c62d90c12c6cc86f10b8a62cefe0029374b6ff",
"lessThan": "ac9032882d673dd6679e1d873a2dc0131a1aeb43",
"versionType": "git"
},
{
"status": "affected",
"version": "b7c62d90c12c6cc86f10b8a62cefe0029374b6ff",
"lessThan": "8e4ebb6afaa34bd2e8ce52da231003d24111c2d6",
"versionType": "git"
}
],
"programFiles": [
"fs/xfs/libxfs/xfs_parent.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.10",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/xfs/libxfs/xfs_parent.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97551
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38001 · Revision 1
- Added to Heist Feed
- Publisher date