Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected bcd191d7bab25513daf7db78ab32eda60d9484c3 before 3efb29f6a78d4746f958c1ab6cd7981c5762f03b; affected c99b38c412343053e9af187e595793c8805bb9b8 before 770cacc75b0091ece17349195d72133912c1ca7c; affected c99b38c412343053e9af187e595793c8805bb9b8 before dcdb52d948f3a17ccd3fce757d9bd981d7c32039 |
| Linux / Linux | affected 6.8; unaffected 0 before 6.8; unaffected 6.10.7 through 6.10.*; unaffected 6.11 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/3efb29f6a78d4746f958c1ab6cd7981c5762f03b
- https://git.kernel.org/stable/c/770cacc75b0091ece17349195d72133912c1ca7c
- https://git.kernel.org/stable/c/dcdb52d948f3a17ccd3fce757d9bd981d7c32039
ADP enrichment
No English description supplied.
No references supplied.