net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent
Published Aug 21, 2024
7.8
HIGHCVSS 3.1
EPSS 0.23%
Description
A user is able to configure an arbitrary number of rx queues when creating an interface via netlink. This doesn't work for child PKEY interfaces because the child interface uses the parent receive channels.
Although the child shares the parent's receive channels, the number of rx queues is important for the channel_stats array: the parent's rx channel index is used to access the child's channel_stats. So the array has to be at least as large as the parent's rx queue size for the counting to work correctly and to prevent out of bound accesses.
This patch checks for the mentioned scenario and returns an error when trying to create the interface. The error is propagated to the user.
Affected products
-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
-
- Version 5.17StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<5.17
- Version 6.1.7StatusunaffectedConstraints<=6.1.*
- Version 6.2StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
- ≥ 5.17 · < 6.1.7
- 6.2
- 6.2
- 6.2
No data.
Red Hat Enterprise Linux 8
kernel-0:4.18.0-477.10.1.el8_8
Fixed · RHSA-2023:2951
Red Hat Enterprise Linux 9
kernel-0:5.14.0-284.11.1.el9_2
Fixed · RHSA-2023:2458
Red Hat Enterprise Linux 9
kernel-0:5.14.0-284.11.1.el9_2
Fixed · RHSA-2023:2458
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Out of support scope
Red Hat Enterprise Linux 7
kernel-rt
Out of support scope
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 8 | kernel-0:4.18.0-477.10.1.el8_8 | Fixed | RHSA-2023:2951 |
| Red Hat Enterprise Linux 9 | kernel-0:5.14.0-284.11.1.el9_2 | Fixed | RHSA-2023:2458 |
| Red Hat Enterprise Linux 9 | kernel-0:5.14.0-284.11.1.el9_2 | Fixed | RHSA-2023:2458 |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Out of support scope | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue is fixed in RHEL-9.2 and above (including RHEL 8.10) ~~~ in (rhel-8.8, rhel-8.9, rhel-8.10) net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent in (rhel-9.2, rhel-9.3, rhel-9.4, rhel-9.5) net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent ~~~ Please note that while RHEL-9 kernel-rt still appears as affected, it has been fixed in the same RHSA as RHEL-9 kernel. This is because from RHEL-9.3 onwards, the kernel and kernel-rt fixes are bundled together in a single errata.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Sep 10, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2024–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (5 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.23% (0.00230) | 12.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.23% (0.00230) | 13.53th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00038) | 8.14th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00043) | 10.81th | v3 (v2023.03.01) |
| Aug 22, 2024 | 0.04% (0.00043) | 9.54th | v3 (v2023.03.01) |
References (7)
- https://access.redhat.com/security/cve/CVE-2022-48883 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2306404 Issue Tracking
- https://git.kernel.org/stable/c/31c70bfe58ef09fe36327ddcced9143a16e9e83d Patch
- https://git.kernel.org/stable/c/5844a46f09f768da866d6b0ffbf1a9073266bf24 Patch
- https://lore.kernel.org/linux-cve-announce/2024082108-CVE-2022-48883-4df4@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2022-48883
- https://www.cve.org/CVERecord?id=CVE-2022-48883
Change history (0)
No recorded changes yet.