net: libwx: fix VF illegal register access
Published May 28, 2026
5.5
MEDIUMCVSS 3.1
EPSS 0.16%
Description
Register WX_CFG_PORT_ST is a PF restricted register. When a VF is initialized, attempting to read this register triggers an illegal register access, which lead to a system hang.
When the device is VF, the bus function ID can be obtained directly from the PCI_FUNC(pdev->devfn).
Affected products
-
Affected
- ≥ 6.12.58, < 6.12.88
- ≥ 6.17.8, < 6.18
- ≥ 6.6.117, < 6.6.140
-
Affected
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
-
Affected
- 6.18
Unaffected
- ≥ 0, < 6.18
- ≥ 6.12.88, ≤ 6.12.*
- ≥ 6.18.30, ≤ 6.18.*
- ≥ 6.6.140, ≤ 6.6.*
- ≥ 7.0.7, ≤ 7.0.*
- 7.1
Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
| Vendor | Product | Default status | Versions |
|---|---|---|---|
| Linux | Linux | unaffected | Affected
|
| Linux | Linux | unaffected | Affected
|
| Linux | Linux | affected | Affected
Unaffected
|
- ≥ 6.6.117 · < 6.6.140
- ≥ 6.12.58 · < 6.12.88
- ≥ 6.17.8 · < 6.18
- ≥ 6.18.1 · < 6.18.30
- ≥ 6.19 · < 7.0.7
- 6.18
- 6.18
- 6.18
- 6.18
- 7.1
- 7.1
No data.
Red Hat Enterprise Linux 10
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (11)
- https://access.redhat.com/security/cve/CVE-2026-46142 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2482572 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-32769 Advisory
- https://git.kernel.org/stable/c/33c5bb50b9c40e8451e6aec4487a31d794b98d92 Patch
- https://git.kernel.org/stable/c/68a007a701bc06fa426507c551ef12514f2e721d Patch
- https://git.kernel.org/stable/c/694de316f607fe2473d52ca0707e3918e72c1562 Patch
- https://git.kernel.org/stable/c/d3bd8040497968f6f5470018724ef7b0df92f707 Patch
- https://git.kernel.org/stable/c/f6e656f7cea16b638675a2ab7d7e4cf2516c5eb0 Patch
- https://lore.kernel.org/linux-cve-announce/2026052820-CVE-2026-46142-52bf@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2026-46142
- https://www.cve.org/CVERecord?id=CVE-2026-46142
Change history (0)
No recorded changes yet.
CVE.org / MITRE
CISA Vulnrichment
No data
GitHub
No data