CVE-2026-98279: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: btrfs: handle lack of space when cleaning up verity items When enable_verity() hits the qgroup limit, rollback_verity() needs its own metadata reservation. When the qgroup limit or lack of space refuses the rollback, the whole filesystem is forced read-only even though the qgroup limit was for one subvolume only. Also orphan cleanup at the next mount fails the same way, so the leftover items are never removed: with -EDQUOT the subvolume stays unreachable, and with -ENOSPC on a full filesystem the next read-write mount fails. Start transactions with btrfs_start_transaction_fallback_global_rsv() in btrfs_orphan_cleanup(), drop_verity_items() and rollback_verity(). Those calls only delete items and free the space in the end, so they may use the global reserve and skip the qgroup limit, which avoids -ENOSPC and -EDQUOT.

Засегнати продукти

• Linux Linux: 146054090b0859b28fc39015c7704ccc3c3a347f преди 4b7ecabd87dc40998fe7870d7975279649229a3b; 146054090b0859b28fc39015c7704ccc3c3a347f преди efa5780b84f066f419a667f6b9542368b2f62074; 146054090b0859b28fc39015c7704ccc3c3a347f преди 76bf149cd0298544631e756670b89c399c7acbca
• Linux Linux: 5.15; преди 5.15; 6.18.54 до 6.18.*; 7.2.8 до 7.2.*; 7.3 до *

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-2026-98279
• https://nvd.nist.gov/vuln/detail/CVE-2026-98279
• https://git.kernel.org/stable/c/4b7ecabd87dc40998fe7870d7975279649229a3b
• https://git.kernel.org/stable/c/efa5780b84f066f419a667f6b9542368b2f62074
• https://git.kernel.org/stable/c/76bf149cd0298544631e756670b89c399c7acbca