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CVE-2026-53046: 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.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free from async crypto on Qualcomm crypto engine ksmbd_crypt_message() sets a NULL completion callback on AEAD requests and does not handle the -EINPROGRESS return code from async hardware crypto engines like the Qualcomm Crypto Engine (QCE). When QCE returns -EINPROGRESS, ksmbd treats it as an error and immediately frees the request while the hardware DMA operation is still in flight. The DMA completion callback then dereferences freed memory, causing a NULL pointer crash: pc : qce_skcipher_done+0x24/0x174 lr : vchan_complete+0x230/0x27c ... el1h_64_irq+0x68/0x6c ksmbd_free_work_struct+0x20/0x118 [ksmbd] ksmbd_exit_file_cache+0x694/0xa4c [ksmbd] Use the standard crypto_wait_req() pattern with crypto_req_done() as the completion callback, matching the approach used by the SMB client in fs/smb/client/smb2ops.c. This properly handles both synchronous engines (immediate return) and async engines (-EINPROGRESS followed by callback notification).

    Засегнати продукти

    • Linux Linux: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 57b47231055b431ed0a1a55f33cac32981564405; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди cc2da381875d4a67026e4c8feb3dba51a2a2d1bc; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 8fcefe840fa8c14ce667768e5b043286ac3bbcbe; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 8ef183216feaa24b66b940510d8b68f680eb56e9; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 7164b3953cefd540e7ebca828c793bc6869cfbc4; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди b46aa129fa2807bfe1545fe74d9295d53c51520b; e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 преди 3e298897f41c61450c2e7a4f457e8b2485eb35b3
    • Linux Linux: 5.15; преди 5.15; 5.15.209 до 5.15.*; 6.1.175 до 6.1.*; 6.6.141 до 6.6.*; 6.12.91 до 6.12.*; 6.18.33 до 6.18.*; 7.0.10 до 7.0.*; 7.1 до *

    История

    • 24 юни 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-53046: Linux | freedomonline.bg