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CVE-2026-80980: Linux

9.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.

  • Експлоатация: няма данни за експлоатация
  • Атаката може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: net/smc: stop killed, freed and out_of_sync sharing a byte The three connection state flags are single-bit bitfields, so they occupy one byte of struct smc_connection and every store to one is a read-modify-write of the other two: u8 killed : 1; u8 freed : 1; u8 out_of_sync : 1; They are not written under a common lock. smc_cdc_msg_validate() sets out_of_sync from the receive tasklet, while smc_conn_kill() sets killed from process context under lock_sock(), and the receive path does not defer to the backlog when the socket is owned -- smc_cdc_msg_recv() takes only bh_lock_sock(). Give each flag its own byte so a store no longer touches its neighbours. All readers test them as booleans and are unchanged. struct smc_connection grows by two bytes.

Засегнати продукти

  • Linux Linux: b286a0651e4404ab96cdfdcdad8a839a26b3751e преди a6efc0f4dbdba6595d89cdaf2d8f26f68be16f0b; b286a0651e4404ab96cdfdcdad8a839a26b3751e преди 297e96f38d3e4f1a3b84068950dd5c7a55bbdc7b; b286a0651e4404ab96cdfdcdad8a839a26b3751e преди 09a9cbadc05f452405de31012bd2c428b601291a; b286a0651e4404ab96cdfdcdad8a839a26b3751e преди 313f79149eb337411c64e2c247234b62ef9a3cb9; b286a0651e4404ab96cdfdcdad8a839a26b3751e преди 2cb7a8d64b7e8ccdc69bbe48fe9c4eaa79c33aec; b286a0651e4404ab96cdfdcdad8a839a26b3751e преди db51a8658c11a82432b64999519a269c3aabb447
  • Linux Linux: 5.8; преди 5.8; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.112 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък

История

  • 11 септември 2026 Публикувано

Други уязвимости в Linux Linux

Първоизточници

CVE-2026-80980: Linux | freedomonline.bg