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CVE-2026-31689: 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: EDAC/mc: Fix error path ordering in edac_mc_alloc() When the mci->pvt_info allocation in edac_mc_alloc() fails, the error path will call put_device() which will end up calling the device's release function. However, the init ordering is wrong such that device_initialize() happens *after* the failed allocation and thus the device itself and the release function pointer are not initialized yet when they're called: MCE: In-kernel MCE decoding enabled. ------------[ cut here ]------------ kobject: '(null)': is not initialized, yet kobject_put() is being called. WARNING: lib/kobject.c:734 at kobject_put, CPU#22: systemd-udevd CPU: 22 UID: 0 PID: 538 Comm: systemd-udevd Not tainted 7.0.0-rc1+ #2 PREEMPT(full) RIP: 0010:kobject_put Call Trace: <TASK> edac_mc_alloc+0xbe/0xe0 [edac_core] amd64_edac_init+0x7a4/0xff0 [amd64_edac] ? __pfx_amd64_edac_init+0x10/0x10 [amd64_edac] do_one_initcall ... Reorder the calling sequence so that the device is initialized and thus the release function pointer is properly set before it can be used. This was found by Claude while reviewing another EDAC patch.

    Засегнати продукти

    • Linux Linux: 0bbb265f7089584aaa6d440805ca75ea4f3930d4 преди aae95970fad2127a1bd49d8713c7cd0677dcd2d6; 0bbb265f7089584aaa6d440805ca75ea4f3930d4 преди d3de72e2a2b9ee3a57734c1c068823e41a707715; 0bbb265f7089584aaa6d440805ca75ea4f3930d4 преди d20e98c2df9354cc744431ad8ccbf49405b8b40f; 0bbb265f7089584aaa6d440805ca75ea4f3930d4 преди 87ce8ae511962e105bcb3534944208c6a9471ed9; 0bbb265f7089584aaa6d440805ca75ea4f3930d4 преди 75825648ce984ca4cebb28e4bd2bf8c3a7e837c5; 0bbb265f7089584aaa6d440805ca75ea4f3930d4 преди 51520e03e70d6c73e33ee7cbe0319767d05764fe
    • Linux Linux: 5.19; преди 5.19; 6.1.169 до 6.1.*; 6.6.135 до 6.6.*; 6.12.82 до 6.12.*; 6.18.23 до 6.18.*; 6.19.13 до 6.19.*; от 7.0 нататък

    История

    • 27 април 2026 Публикувано

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    CVE-2026-31689: Linux | freedomonline.bg