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18 lines
1.3 KiB
Markdown
18 lines
1.3 KiB
Markdown
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### [CVE-2024-27009](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27009)
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### Description
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In the Linux kernel, the following vulnerability has been resolved:s390/cio: fix race condition during online processingA race condition exists in ccw_device_set_online() that can cause theonline process to fail, leaving the affected device in an inconsistentstate. As a result, subsequent attempts to set that device online failwith return code ENODEV.The problem occurs when a path verification request arrives aftera wait for final device state completed, but before the result stateis evaluated.Fix this by ensuring that the CCW-device lock is held betweendetermining final state and checking result state.Note that since:commit 2297791c92d0 ("s390/cio: dont unregister subchannel from child-drivers")path verification requests are much more likely to occur during boot,resulting in an increased chance of this race condition occurring.
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### POC
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#### Reference
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No PoCs from references.
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#### Github
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- https://github.com/fkie-cad/nvd-json-data-feeds
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