CVE-2024-45027 (GCVE-0-2024-45027)
Vulnerability from cvelistv5
Published
2024-09-11 15:13
Modified
2025-05-09 08:06
Severity ?
Summary
In 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.
References
Impacted products
Vendor Product Version
Linux Linux Version: bcd191d7bab25513daf7db78ab32eda60d9484c3
Version: c99b38c412343053e9af187e595793c8805bb9b8
Version: c99b38c412343053e9af187e595793c8805bb9b8
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