Microsoft Security Response Center guidance
Vendor revision: Aug 14, 2026CBL-Mariner Releases
Vendor-listed releases
- 6.6.150.1-1
Vulnerability intelligence
CVE-2026-68327. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
CBL-Mariner Releases
Vendor-listed releases
In the Linux kernel, the following vulnerability has been resolved:
wan: wanxl: Only reset hardware after BAR mapping
wanxl_pci_init_one() stores the freshly allocated card in driver data before the PLX BAR is mapped. Several early probe failures then unwind through wanxl_pci_remove_one(), including failure to allocate the coherent status area or to restore the DMA mask.
wanxl_pci_remove_one() unconditionally calls wanxl_reset(), and wanxl_reset() dereferences card->plx. On those early failures card->plx is still NULL, so the error path can dereference a NULL MMIO pointer.
Only issue the hardware reset once the BAR mapping exists. The remaining cleanup in wanxl_pci_remove_one() already checks whether later resources were allocated.
This issue was found by a static analysis checker and confirmed by manual source review.
Source: NVD