CVE-2026-97551: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: b7c62d90c12c6cc86f10b8a62cefe0029374b6ff преди 9ad85bce62cadfdf4242f6e6bbff2a52e51d30f1; b7c62d90c12c6cc86f10b8a62cefe0029374b6ff преди c66e138af626cad4210da449996ae9e07ee63add; b7c62d90c12c6cc86f10b8a62cefe0029374b6ff преди ac9032882d673dd6679e1d873a2dc0131a1aeb43; b7c62d90c12c6cc86f10b8a62cefe0029374b6ff преди 8e4ebb6afaa34bd2e8ce52da231003d24111c2d6
• Linux Linux: 6.10; преди 6.10; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; 7.2.7 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-97551
• https://nvd.nist.gov/vuln/detail/CVE-2026-97551
• https://git.kernel.org/stable/c/9ad85bce62cadfdf4242f6e6bbff2a52e51d30f1
• https://git.kernel.org/stable/c/c66e138af626cad4210da449996ae9e07ee63add
• https://git.kernel.org/stable/c/ac9032882d673dd6679e1d873a2dc0131a1aeb43
• https://git.kernel.org/stable/c/8e4ebb6afaa34bd2e8ce52da231003d24111c2d6