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CVE-2026-23463: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: soc: fsl: qbman: fix race condition in qman_destroy_fq When QMAN_FQ_FLAG_DYNAMIC_FQID is set, there's a race condition between fq_table[fq->idx] state and freeing/allocating from the pool and WARN_ON(fq_table[fq->idx]) in qman_create_fq() gets triggered. Indeed, we can have: Thread A Thread B qman_destroy_fq() qman_create_fq() qman_release_fqid() qman_shutdown_fq() gen_pool_free() -- At this point, the fqid is available again -- qman_alloc_fqid() -- so, we can get the just-freed fqid in thread B -- fq->fqid = fqid; fq->idx = fqid * 2; WARN_ON(fq_table[fq->idx]); fq_table[fq->idx] = fq; fq_table[fq->idx] = NULL; And adding some logs between qman_release_fqid() and fq_table[fq->idx] = NULL makes the WARN_ON() trigger a lot more. To prevent that, ensure that fq_table[fq->idx] is set to NULL before gen_pool_free() is called by using smp_wmb().

    Засегнати продукти

    • Linux Linux: c535e923bb97a4b361e89a6383693482057f8b0c преди 66442cf9989bd4489fa80d9f37637d58ab016835; c535e923bb97a4b361e89a6383693482057f8b0c преди d288fbe652ef43b7128e4bc0c0c2ef6bd03a2210; c535e923bb97a4b361e89a6383693482057f8b0c преди 9e3d47904b8153c8c3ad2f9b66d5008aad677aa8; c535e923bb97a4b361e89a6383693482057f8b0c преди d21923a8059fa896bfef016f55dd769299335cb4; c535e923bb97a4b361e89a6383693482057f8b0c преди 751f60bd48edaf03f9d84ab09e5ce6705757d50f; c535e923bb97a4b361e89a6383693482057f8b0c преди 85dbbf7dc88b0a54f2e334daedf6f3f31fd004fa; c535e923bb97a4b361e89a6383693482057f8b0c преди 265e56714635c5dd1e5964bfd97fa6e73f62cde5; c535e923bb97a4b361e89a6383693482057f8b0c преди 014077044e874e270ec480515edbc1cadb976cf2
    • Linux Linux: 4.9; преди 4.9; 5.10.253 до 5.10.*; 5.15.203 до 5.15.*; 6.1.167 до 6.1.*; 6.6.130 до 6.6.*; 6.12.78 до 6.12.*; 6.18.20 до 6.18.*; 6.19.10 до 6.19.*; от 7.0 нататък
    • Siemens: още 3 продукта, добавени от Siemens

      SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

    История

    • 3 април 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-23463: Linux | freedomonline.bg