iavf: free q_vectors before queues in iavf_disable_vf
In the Linux kernel, the following vulnerability has been resolved: iavf: free q_vectors before queues in iavf_disable_vf iavf_free_queues() clears adapter->num_active_queues, which iavf_free_q_vectors() relies on, so swap the order of these two function calls in iavf_disable_vf(). This resolves a panic encountered when the interface is disabled and then later brought up again after PF communication is restored.
- Published
- Apr 10, 2024
- Updated
- Aug 5, 2026
- EPSS
- 0.2% · 14th percentile
- CWE
- —
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Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 5.5
- CNA · Linux
- 7.8
- 2.3 point gap
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel4.13 and later · before 5.4.162
- linux linux kernel5.5 and later · before 5.10.82
- linux linux kernel5.11 and later · before 5.15.5
- linux linux kernel5.16
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 4.13affected
- 65c7006f234c9ede887d468f595f259a5c5cc552 and later · before 926e8c83d4c1c2dac0026637eb0d492df876489eaffected · git
- 65c7006f234c9ede887d468f595f259a5c5cc552 and later · before 78638b47132244e3934dc5dc79f6372d5ce8e98caffected · git
- 65c7006f234c9ede887d468f595f259a5c5cc552 and later · before 9ef6589cac9a8c47f5544ccdf4c498093733bb3faffected · git
- 65c7006f234c9ede887d468f595f259a5c5cc552 and later · before 89f22f129696ab53cfbc608e0a2184d0fea46ac1affected · git
- before 4.13not affected · semver
- 5.4.162 and later · up to and including 5.4.*not affected · semver
- 5.10.82 and later · up to and including 5.10.*not affected · semver
- 5.15.5 and later · up to and including 5.15.*not affected · semver
- 5.16 and laternot affected · original_commit_for_fix
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 5.15.5-1 | 5.15.5-1 |
| openSUSE:Leap 15.5 | dtb-aarch64 | before 5.14.21-150500.55.62.1 | 5.14.21-150500.55.62.1 |
| openSUSE:Leap 15.5 | kernel-debug | before 5.14.21-150500.55.62.2 | 5.14.21-150500.55.62.2 |
| openSUSE:Leap 15.5 | kernel-kvmsmall | before 5.14.21-150500.55.62.2 | 5.14.21-150500.55.62.2 |
| openSUSE:Leap 15.5 | kernel-obs-qa | before 5.14.21-150500.55.62.1 | 5.14.21-150500.55.62.1 |
| SUSE:Linux Enterprise High Availability Extension 12 SP5 | kernel-default | before 4.12.14-122.222.1 | 4.12.14-122.222.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-default-base | before 5.3.18-150200.24.191.1.150200.9.97.1 | 5.3.18-150200.24.191.1.150200.9.97.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-docs | before 5.3.18-150200.24.191.1 | 5.3.18-150200.24.191.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-obs-build | before 5.3.18-150200.24.191.1 | 5.3.18-150200.24.191.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-preempt | before 5.3.18-150200.24.191.1 | 5.3.18-150200.24.191.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-source | before 5.3.18-150200.24.191.1 | 5.3.18-150200.24.191.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-syms | before 5.3.18-150200.24.191.1 | 5.3.18-150200.24.191.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-64kb | before 5.3.18-150300.59.161.1 | 5.3.18-150300.59.161.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default-base | before 5.3.18-150300.59.161.1.150300.18.94.1 | 5.3.18-150300.59.161.1.150300.18.94.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-docs | before 5.3.18-150300.59.161.2 | 5.3.18-150300.59.161.2 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-obs-build | before 5.3.18-150300.59.161.1 | 5.3.18-150300.59.161.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-preempt | before 5.3.18-150300.59.161.1 | 5.3.18-150300.59.161.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | before 5.3.18-150300.59.161.1 | 5.3.18-150300.59.161.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-syms | before 5.3.18-150300.59.161.1 | 5.3.18-150300.59.161.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-64kb | before 5.14.21-150400.24.119.1 | 5.14.21-150400.24.119.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-64kb | before 5.14.21-150400.24.119.1 | 5.14.21-150400.24.119.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-docs | before 5.14.21-150400.24.119.1 | 5.14.21-150400.24.119.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-docs | before 5.14.21-150400.24.119.1 | 5.14.21-150400.24.119.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-obs-build | before 5.14.21-150400.24.119.1 | 5.14.21-150400.24.119.1 |
+70
Same product
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- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
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Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 78638b47132244e3934dc5dc79f6372d5ce8e98c | Vendor (CNA) |
| Linux Linux | 89f22f129696ab53cfbc608e0a2184d0fea46ac1 | Vendor (CNA) |
| Linux Linux | 926e8c83d4c1c2dac0026637eb0d492df876489e | Vendor (CNA) |
| Linux Linux | 9ef6589cac9a8c47f5544ccdf4c498093733bb3f | Vendor (CNA) |
| debian:linux | 5.15.5-1 · Debian:12 | Package registry (OSV) |
| opensuse:kernel-default | 5.14.21-150400.24.119.1 · openSUSE:Leap Micro 5.3 | Package registry (OSV) |
| opensuse:kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 · openSUSE:Leap Micro 5.3 | Package registry (OSV) |
| suse:kernel-64kb | 5.14.21-150400.24.119.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-azure | 5.14.21-150500.33.51.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP5 | Package registry (OSV) |
| suse:kernel-default | 5.14.21-150400.24.119.1 · SUSE:Linux Enterprise Micro 5.3 | Package registry (OSV) |
| suse:kernel-default-base | 5.14.21-150400.24.119.1.150400.24.56.1 · SUSE:Linux Enterprise Micro 5.3 | Package registry (OSV) |
| suse:kernel-docs | 5.14.21-150400.24.119.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP3_Update_44 | 1-150300.7.3.1 · SUSE:Linux Enterprise Live Patching 15 SP3 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP4_Update_26 | 1-150400.9.3.1 · SUSE:Linux Enterprise Live Patching 15 SP4 | Package registry (OSV) |
| suse:kernel-obs-build | 5.14.21-150400.24.119.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-source | 5.14.21-150400.24.119.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-syms | 5.14.21-150400.24.119.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-zfcpdump | 5.14.21-150400.24.119.1 · SUSE:Linux Enterprise Server 15 SP4-LTSS | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/78638b47132244e3934dc5dc79f6372d5ce8e98c
- git.kernel.org/stable/c/89f22f129696ab53cfbc608e0a2184d0fea46ac1
- git.kernel.org/stable/c/926e8c83d4c1c2dac0026637eb0d492df876489e
- git.kernel.org/stable/c/9ef6589cac9a8c47f5544ccdf4c498093733bb3f
Vendor advisories and official records. Exploit/PoC links are deliberately left out.