PT-2026-52285 · Linux · Linux

Publicado 2026-06-25 · Atualizado 2026-06-25 · CVE-2026-53189

NVD

In the Linux kernel, the following vulnerability has been resolved:

mm/huge memory: update file PMD counter before folio put()

split huge pmd locked() updates the file/shmem RSS counter after dropping the PMD mapping's folio reference. If folio put() drops the last reference, mm counter file() can later read freed folio state via folio test swapbacked().

Move the counter update before folio put().

Identificadores relacionados

CVE-2026-53189

Produtos afetados

Linux

Referências · 9

• https://git.kernel.org/stable/c/8d878059924f12c1bc24556a92ec56add74de3c8 · Nota
• https://git.kernel.org/stable/c/ae9d4caf6f133e884cf5fcda4982c493b35e5194 · Nota
• https://git.kernel.org/stable/c/459771c9cf30f378bdbd30fc65d17f7eb931bb59 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-53189 · Nota de Segurança
• https://git.kernel.org/stable/c/84b3212b166b446faea27ebebb7161405ffceef9 · Nota
• https://git.kernel.org/stable/c/5f5b604e1e6bde4e889199168ee80fe8306d06ad · Nota
• https://git.kernel.org/stable/c/108963978a681c0c468d279cac2b930c27672877 · Nota
• https://git.kernel.org/stable/c/ed5b030931292c94133437ac5e5ff580e498eabd · Nota
• https://git.kernel.org/stable/c/6c29a8ba084e89499ca77b947e07ae817f9c16ce · Nota