CVE-2026-72218: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: lockd: Plug nlm_file refcount leak on cached nlm_do_fopen() failure The cached-file path in nlm_lookup_file() reaches the found: label unconditionally, even when nlm_do_fopen() fails. At that label *result and file->f_count are updated before the error is returned. The wrappers nlm3svc_lookup_file() and nlm4svc_lookup_file() then bail out of their switch without copying *result back to their caller, so the proc handler's local nlm_file pointer remains NULL and the cleanup path skips nlm_release_file(). The f_count increment is never released, and nlm_traverse_files() can no longer reap the file because its refcount never returns to zero between requests. Short-circuit the cached path so neither *result nor f_count is touched when nlm_do_fopen() fails on a hashed nlm_file.

Засегнати продукти

• Linux Linux: e580323ac0b51ad10ec2e181d1f777479b7983e7 преди 6cd84cefd8b73e85b9eda17b319bd40a670f3a38; 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 преди fe3b45b56b6c3d4b6b341de27fa291005287a21c; 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 преди cb3420c047957e565101585bb4f15e1a6e3de6b0; 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 преди 7ce4c23e783e766507b2cef27bbf97e9ca944f1a; 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 преди 84008bf1860e0ef8059a7583a1163f36b704d08a; 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 преди 46d59ff421824b6483549d87f14efffbbbd1f6cb; 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 преди 3a5c55a19cad62f2973be25fe96a1a9e7f618e8a; 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 преди 70a38f87bed7f0694fd07988b47b2db1e10d8df3; 5.10.220 преди 5.10.261
• Linux Linux: 5.15; преди 5.15; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; 7.2 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-2026-72218
• https://nvd.nist.gov/vuln/detail/CVE-2026-72218
• https://git.kernel.org/stable/c/6cd84cefd8b73e85b9eda17b319bd40a670f3a38
• https://git.kernel.org/stable/c/fe3b45b56b6c3d4b6b341de27fa291005287a21c
• https://git.kernel.org/stable/c/cb3420c047957e565101585bb4f15e1a6e3de6b0
• https://git.kernel.org/stable/c/7ce4c23e783e766507b2cef27bbf97e9ca944f1a
• https://git.kernel.org/stable/c/84008bf1860e0ef8059a7583a1163f36b704d08a
• https://git.kernel.org/stable/c/46d59ff421824b6483549d87f14efffbbbd1f6cb
• https://git.kernel.org/stable/c/3a5c55a19cad62f2973be25fe96a1a9e7f618e8a
• https://git.kernel.org/stable/c/70a38f87bed7f0694fd07988b47b2db1e10d8df3