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CVE-2026-72048: Linux

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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: ieee802154: ca8210: fix cas_ctl leak on spi_async failure ca8210_spi_transfer() allocates cas_ctl with kzalloc_obj(GFP_ATOMIC) and relies entirely on the SPI completion callback ca8210_spi_transfer_complete() to free it. The spi_async() API only invokes the completion callback on successful submission. On failure it returns a negative error code without ever queuing the callback, which leaves cas_ctl and its embedded spi_message and spi_transfer orphaned. Every kfree(cas_ctl) in the driver is inside the completion callback, so there is no other reclamation path. ca8210_spi_transfer() is called from ca8210_spi_exchange(), the interrupt handler ca8210_interrupt_handler(), and from the retry path inside the completion callback itself. The exchange and interrupt handler paths loop on -EBUSY, so under sustained SPI bus contention every retry iteration leaks a fresh cas_ctl (~600 bytes per occurrence). Fix it by freeing cas_ctl on the spi_async() error path. While here, correct the misleading error string: the function calls spi_async(), not spi_sync().

    Засегнати продукти

    • Linux Linux: ded845a781a578dfb0b5b2c138e5a067aa3b1242 преди 460c5cd51e4d7d15b317f178f42cfcb666c0fe91; ded845a781a578dfb0b5b2c138e5a067aa3b1242 преди b07aea90dbc6e188c74c100af64b77b9482ffc65; ded845a781a578dfb0b5b2c138e5a067aa3b1242 преди fe90605b651573d30be8293ff5be40e3d7023117; ded845a781a578dfb0b5b2c138e5a067aa3b1242 преди b9071dc7889bef42590e04fbf3e56cc65e1e5e6e; ded845a781a578dfb0b5b2c138e5a067aa3b1242 преди d4a397fe803c2d157f6ebb068b802ef75fbf109e; ded845a781a578dfb0b5b2c138e5a067aa3b1242 преди cb5cca1d2a908ddd5e357971de0f2009617b8d6a; ded845a781a578dfb0b5b2c138e5a067aa3b1242 преди 7e3630fbb6aabb844bbf35746dee0bf3894100c7; ded845a781a578dfb0b5b2c138e5a067aa3b1242 преди e09390e439bd7cca30dd10893b1f64802961667a
    • Linux Linux: 4.12; преди 4.12; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; 7.2 до *

    История

    • 15 август 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-72048: Linux | freedomonline.bg