CVE-2026-31492: RDMA/irdma: Initialize free_qp completion before using it
Noroxi assessment
Priority: Monitor (action score 22/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.12% (FIRST EPSS).
- 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.
- Fixed version: Linux Linux 11a95521fb93c91e2d4ef9d53dc80ef0a755549b, 3cb88c12461b71c7d9c604aa2e6a9a477ecfa147, ac1da7bd224d406b6f1b84414f0f652ab43b6bd8; cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0 Release Notes.
Low priority for now. Upgrade to Linux Linux 11a95521fb93c91e2d4ef9d53dc80ef0a755549b, 3cb88c12461b71c7d9c604aa2e6a9a477ecfa147, ac1da7bd224d406b6f1b84414f0f652ab43b6bd8; cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0 Release Notes or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Initialize free_qp completion before using it In irdma_create_qp, if ib_copy_to_udata fails, it will call irdma_destroy_qp to clean up which will attempt to wait on the free_qp completion, which is not initialized yet. Fix this by initializing the completion before the ib_copy_to_udata call.
- Published
- Apr 22, 2026
- Updated
- Jun 17, 2026
- EPSS
- 0.1% · 2th percentile
- CWE
- CWE-908
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 · 0.1%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
Running WordPress? Scan your site free with WP Lens
Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| 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 kernel5.14.1 and later · before 6.1.168
- linux linux kernel6.2 and later · before 6.6.131
- linux linux kernel6.7 and later · before 6.12.80
- linux linux kernel6.13 and later · before 6.18.21
- linux linux kernel6.19 and later · before 6.19.11
- linux linux kernel5.14
- linux linux kernel7.0
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
- 5.14affected
- b48c24c2d710cf34810c555dcef883a3d35a9c08 and later · before ac1da7bd224d406b6f1b84414f0f652ab43b6bd8affected · git
- b48c24c2d710cf34810c555dcef883a3d35a9c08 and later · before af310407f79d5816fc0ab3638e1588b6193316ddaffected · git
- b48c24c2d710cf34810c555dcef883a3d35a9c08 and later · before cd1534c8f4984432382c240f6784408497f5bb0aaffected · git
- b48c24c2d710cf34810c555dcef883a3d35a9c08 and later · before 3cb88c12461b71c7d9c604aa2e6a9a477ecfa147affected · git
- b48c24c2d710cf34810c555dcef883a3d35a9c08 and later · before f72996834f7bdefc2b95e3eec30447ee195df44eaffected · git
- b48c24c2d710cf34810c555dcef883a3d35a9c08 and later · before 11a95521fb93c91e2d4ef9d53dc80ef0a755549baffected · git
- before 5.14not affected · semver
- 6.1.168 and later · up to and including 6.1.*not affected · semver
- 6.6.131 and later · up to and including 6.6.*not affected · semver
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 6.1.170-1 | 6.1.170-1 |
| Debian:13 | linux | before 6.12.85-1 | 6.12.85-1 |
| Debian:14 | linux | before 6.19.11-1 | 6.19.11-1 |
| openSUSE:Leap 16.0 | dtb-aarch64 | before 6.12.0-160000.36.1 | 6.12.0-160000.36.1 |
| openSUSE:Leap 16.0 | kernel-64kb | before 6.12.0-160000.36.1 | 6.12.0-160000.36.1 |
| openSUSE:Leap 16.0 | kernel-azure | before 6.12.0-160000.36.1 | 6.12.0-160000.36.1 |
| openSUSE:Leap 16.0 | kernel-default | before 6.12.0-160000.36.1 | 6.12.0-160000.36.1 |
| openSUSE:Leap 16.0 | kernel-default-base | before 6.12.0-160000.36.1.160000.2.17 | 6.12.0-160000.36.1.160000.2.17 |
| openSUSE:Leap 16.0 | kernel-docs | before 6.12.0-160000.36.1 | 6.12.0-160000.36.1 |
| openSUSE:Leap 16.0 | kernel-kvmsmall | before 6.12.0-160000.36.1 | 6.12.0-160000.36.1 |
| openSUSE:Leap 16.0 | kernel-obs-build | before 6.12.0-160000.36.1 | 6.12.0-160000.36.1 |
| openSUSE:Leap 16.0 | kernel-obs-qa | before 6.12.0-160000.36.1 | 6.12.0-160000.36.1 |
| openSUSE:Leap 16.0 | kernel-rt | before 6.12.0-160000.36.1 | 6.12.0-160000.36.1 |
| openSUSE:Leap 16.0 | kernel-source | before 6.12.0-160000.36.1 | 6.12.0-160000.36.1 |
| openSUSE:Leap 16.0 | kernel-syms | before 6.12.0-160000.36.1 | 6.12.0-160000.36.1 |
| openSUSE:Leap 16.0 | kernel-zfcpdump | before 6.12.0-160000.36.1 | 6.12.0-160000.36.1 |
| SUSE:Linux Enterprise Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7_Update_17 | before 1-150700.15.3.1 | 1-150700.15.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7-RT_Update_17 | before 1-150700.1.3.1 | 1-150700.1.3.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP7 | kernel-64kb | before 6.4.0-150700.53.63.1 | 6.4.0-150700.53.63.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP7 | kernel-default | before 6.4.0-150700.53.63.1 | 6.4.0-150700.53.63.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP7 | kernel-default-base | before 6.4.0-150700.53.63.1.150700.17.37.1 | 6.4.0-150700.53.63.1.150700.17.37.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP7 | kernel-source | before 6.4.0-150700.53.63.1 | 6.4.0-150700.53.63.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP7 | kernel-zfcpdump | before 6.4.0-150700.53.63.1 | 6.4.0-150700.53.63.1 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP7 | kernel-docs | before 6.4.0-150700.53.63.1 | 6.4.0-150700.53.63.1 |
+22
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV90Now
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
Published before and after this one in the same product
- ← EarlierCVE-2026-31490Apr 22, 2026 · drm/xe/pf: Fix use-after-free in migration restore31Monitor
- ← EarlierCVE-2026-31491Apr 22, 2026 · RDMA/irdma: Harden depth calculation functions22Monitor
- Later →CVE-2026-31497Apr 22, 2026 · Bluetooth: btusb: clamp SCO altsetting table indices22Monitor
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 | 11a95521fb93c91e2d4ef9d53dc80ef0a755549b | Vendor (CNA) |
| Linux Linux | 3cb88c12461b71c7d9c604aa2e6a9a477ecfa147 | Vendor (CNA) |
| Linux Linux | ac1da7bd224d406b6f1b84414f0f652ab43b6bd8 | Vendor (CNA) |
| Linux Linux | af310407f79d5816fc0ab3638e1588b6193316dd | Vendor (CNA) |
| Linux Linux | cd1534c8f4984432382c240f6784408497f5bb0a | Vendor (CNA) |
| Linux Linux | f72996834f7bdefc2b95e3eec30447ee195df44e | Vendor (CNA) |
| cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0 | Release Notes | Microsoft (MSRC) |
| debian:linux | 6.1.170-1 · Debian:12 | Package registry (OSV) |
| opensuse:dtb-aarch64 | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-64kb | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-azure | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-default | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-default-base | 6.12.0-160000.36.1.160000.2.17 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-docs | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-kvmsmall | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-obs-build | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-obs-qa | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-rt | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-source | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-syms | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| suse:kernel-64kb | 6.12.0-160000.36.1 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
| suse:kernel-azure | 6.12.0-160000.36.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
| suse:kernel-default | 6.4.0-48.1 · SUSE:Linux Micro 6.0 | Package registry (OSV) |
| suse:kernel-default-base | 6.4.0-48.1.21.25 · SUSE:Linux Micro 6.0 | Package registry (OSV) |
| suse:kernel-docs | 6.12.0-160000.36.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
| suse:kernel-kvmsmall | 6.4.0-48.1 · SUSE:Linux Micro 6.0 | Package registry (OSV) |
| suse:kernel-obs-build | 6.12.0-160000.36.1 · SUSE:Linux Micro Extras 6.2 | Package registry (OSV) |
| suse:kernel-obs-qa | 6.12.0-160000.36.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
| suse:kernel-rt | 6.12.0-160000.36.1 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
| suse:kernel-source | 6.4.0-48.1 · SUSE:Linux Micro 6.0 | Package registry (OSV) |
+2
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.
No history yet (it accumulates with the daily EPSS job).
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.
- CVE-2024-50302519 days apartHID: core: zero-initialize the report bufferKEV52Plan
- CVE-2026-5298963 days apartnvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers39Monitor
- CVE-2026-5322564 days apartsctp: fix uninit-value in __sctp_rcv_asconf_lookup()36Monitor
- CVE-2026-5317064 days apartaccel/ethosu: reject DMA commands with uninitialized length35Monitor
- CVE-2026-4313914 days apartxfrm6: fix uninitialized saddr in xfrm6_get_saddr()34Monitor
- CVE-2026-4329116 days apartnet: nfc: nci: Fix parameter validation for packet data33Monitor
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)
CWE-908 · Use of Uninitialized ResourceCVSS 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.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (5 more)Show less
- git.kernel.org/stable/c/3cb88c12461b71c7d9c604aa2e6a9a477ecfa147
- git.kernel.org/stable/c/ac1da7bd224d406b6f1b84414f0f652ab43b6bd8
- git.kernel.org/stable/c/af310407f79d5816fc0ab3638e1588b6193316dd
- git.kernel.org/stable/c/cd1534c8f4984432382c240f6784408497f5bb0a
- git.kernel.org/stable/c/f72996834f7bdefc2b95e3eec30447ee195df44e
Vendor advisories and official records. Exploit/PoC links are deliberately left out.