CVE-2024-45027
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-45027
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-45027.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-45027
- Downstream
- Published
- 2024-09-11T16:15:07Z
- Modified
- 2025-05-09T08:15:18Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
usb: xhci: Check for xhci->interrupters being allocated in xhcimemclearup()
If xhcimeminit() fails, it calls into xhcimemcleanup() to mop up the damage. If it fails early enough, before xhci->interrupters is allocated but after xhci->maxinterrupters has been set, which happens in most (all?) cases, things get uglier, as xhcimem_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.
- References
Affected packages
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source