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CVE-2024-26880 is a vulnerability in the Linux kernel's device mapper (dm) subsystem, specifically related to the suspend and resume logic for device-mapper targets. The bug arises from incorrect pairing of the postsuspend and resume methods, leading to double invocation of the origin_postsuspend function. This results in a double removal of a list entry ("hash_list"), causing list corruption and a kernel crash (BUG at lib/list_debug.c:56). The vulnerable function is __dm_internal_resume, which failed to properly call the preresume and resume methods, leading to inconsistent state and potential kernel panic when certain error conditions are encountered during device-mapper operations.
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Linux kernel device-mapper internal suspend/resume flaw.
Linux kernel device-mapper flaw in internal suspend and resume handling.
Linux kernel device-mapper suspend/resume handling flaw.
Linux kernel device-mapper issue related to invoking the resume method during internal suspension.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.