wan: wanxl: Only reset hardware after BAR mapping
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 2.6.12 and later | 5.10.265, 5.15.216, 6.1.183, 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2 | Patch available | CNA |
- Linux VendorLinux Affected 2.6.12 and later Fixed in 5.10.265, 5.15.216, 6.1.183, 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.265, 5.15.216, 6.1.183, 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-68327
- 2026-10-03 Alias added: GHSA-hgpj-pm42-vw5v
- 2026-10-29 Affected versions changed · Red Hat
- 2026-10-29 CVSS score added · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/ef394eeb9d5ec6db8d979eec6d27f56c2ebc6523
- https://git.kernel.org/stable/c/3d9617d856ebddcdddbab0ce877c397420f59f55
- https://git.kernel.org/stable/c/897e289db1e4d00ca6419cfe733c646492147270
- https://git.kernel.org/stable/c/f4834132773f15ffb255127499c8443947fa7d0f
- https://git.kernel.org/stable/c/b9e2ff70e96acf83693b27987e0390bad9f83efa
- https://git.kernel.org/stable/c/59cbe6cfa0fa23c192351cc284e30707309f6741
- https://git.kernel.org/stable/c/2fe22d58b3797d741570f9873b26653fd511576c
- https://git.kernel.org/stable/c/91957b89da995607cb654b1f9a3c126ddbaee10f
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Sources
- CVE-2026-68327 · CVE Program
- CVE-2026-68327 · NVD
- FIRST EPSS
- GHSA-hgpj-pm42-vw5v · GitHub Advisory Database · CC BY 4.0
- CVE-2026-68327 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences