CVE-2024-45027
MediumIn the Linux kernel, the following vulnerability has been resolved: usb: xhci: Check for xhci->interrupters being allocated in xhci_mem_clearup() If xhci_mem_init() fails, it calls into xhci_mem_cleanup() to mop up the damage. If it fails early enough, before xhci->interrupters is allocated but after xhci->max_interrupters has been set, which happens in most (all?) cases, things get uglier, as xhci_mem_cleanup() unconditionally derefences xhci->interrupters. With prejudice. Gate the interrupt freeing loop with a check on xhci->interrupters being non-NULL. Found while debugging a DMA allocation issue that led the XHCI driver on this exact path.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness type
CWE-459CVE-2024-45027 is classified as CWE-459
See CWE-459 on MITRE CWE for full details on this weakness type.
Affected versions
Linux kernel versions
6.8
and later are affected. Fixed in
6.10.7,
6.11
and their respective stable series.
References
The following references provide additional information about CVE-2024-45027 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/3efb29f6a78d4746f958c1ab6cd7981c5762f03b
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PatchKernel patch commithttps://git.kernel.org/stable/c/770cacc75b0091ece17349195d72133912c1ca7c
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PatchKernel patch commithttps://git.kernel.org/stable/c/dcdb52d948f3a17ccd3fce757d9bd981d7c32039
Frequently asked questions
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What is CVE-2024-45027?
CVE-2024-45027 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.8 onward and has been patched in 6.10.7 and 6.11. CVE-2024-45027 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2024-45027?
CVE-2024-45027 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2024-45027?
Yes — CVE-2024-45027 has been patched. Fixed versions include 6.10.7 and 6.11. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2024-45027 actively exploited?
No — CVE-2024-45027 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.