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CVE-2024-26960 is a race condition in the Linux kernel memory-management swap subsystem between free_swap_and_cache() and swapoff(). While free_swap_and_cache() is processing a swap entry, swapoff() can tear down the associated swap_info_struct. This can cause swap_page_trans_huge_swapped(), which is called by free_swap_and_cache(), to access freed swap_map memory. The upstream fix protects the operation with get_swap_device()/put_swap_device(), preventing swapoff() from completing teardown during the affected operation, and adds an equivalent check that the swap entry is not free within free_swap_and_cache().
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Linux kernel swap-management race condition between free_swap_and_cache() and swapoff().
Unknown
A Linux kernel memory-management swap race condition between free_swap_and_cache() and swapoff(). The referenced tracking assessment characterizes its estimated impact as low, and Red Hat advisories report that it has been addressed for Red Hat Enterprise Linux 8, 9, and 9.4 Extended Update Support.
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