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CVE-2026-45870: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: SUNRPC: auth_gss: fix memory leaks in XDR decoding error paths The gssx_dec_ctx(), gssx_dec_status(), and gssx_dec_name() functions allocate memory via gssx_dec_buffer(), which calls kmemdup(). When a subsequent decode operation fails, these functions return immediately without freeing previously allocated buffers, causing memory leaks. The leak in gssx_dec_ctx() is particularly relevant because the caller (gssp_accept_sec_context_upcall) initializes several buffer length fields to non-zero values, resulting in memory allocation: struct gssx_ctx rctxh = { .exported_context_token.len = GSSX_max_output_handle_sz, .mech.len = GSS_OID_MAX_LEN, .src_name.display_name.len = GSSX_max_princ_sz, .targ_name.display_name.len = GSSX_max_princ_sz }; If, for example, gssx_dec_name() succeeds for src_name but fails for targ_name, the memory allocated for exported_context_token, mech, and src_name.display_name remains unreferenced and cannot be reclaimed. Add error handling with goto-based cleanup to free any previously allocated buffers before returning an error.

    Засегнати продукти

    • Linux Linux: 1d658336b05f8697d6445834f8867f8ad5e4f735 преди c81431b1b9fbd21e9a5a9211b5517b7295d18e6a; 1d658336b05f8697d6445834f8867f8ad5e4f735 преди caf7eff432e91a9eba1c79fa545c2f54be15d62b; 1d658336b05f8697d6445834f8867f8ad5e4f735 преди 64303b92d94c0c7845a273acd8d84b796d6f1db7; 1d658336b05f8697d6445834f8867f8ad5e4f735 преди df10f23defff22c8d55fe6db74f6e4ce927145bf; 1d658336b05f8697d6445834f8867f8ad5e4f735 преди b4af3806846778799cd4ab0766dc18341e777264; 1d658336b05f8697d6445834f8867f8ad5e4f735 преди d79b9097a6a2b91471b40755f1225364be5d85ff; 1d658336b05f8697d6445834f8867f8ad5e4f735 преди 3b56eb90feb8a3709417f5624f3871847d42bcb1; 1d658336b05f8697d6445834f8867f8ad5e4f735 преди 3e6397b056335cc56ef0e9da36c95946a19f5118
    • Linux Linux: 3.10; преди 3.10; 5.10.252 до 5.10.*; 5.15.202 до 5.15.*; 6.1.165 до 6.1.*; 6.6.128 до 6.6.*; 6.12.75 до 6.12.*; 6.18.14 до 6.18.*; 6.19.4 до 6.19.*; 7.0 до *

    История

    • 27 май 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-45870: Linux | freedomonline.bg