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NVD / CVE Program· CNA Linux

CVE-2022-49429: RDMA/hfi1: Prevent panic when SDMA is disabled

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: 0.26% (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 0e4dda8b3f4c07ee9ea670a10ea3171a5e63a86f, 22e7e400fd1a890db2ea13686324aff50e972f4f, 29952ab85d6c3fe0b7909d9a737f10c58bf6824d.

Low priority for now. Upgrade to Linux Linux 0e4dda8b3f4c07ee9ea670a10ea3171a5e63a86f, 22e7e400fd1a890db2ea13686324aff50e972f4f, 29952ab85d6c3fe0b7909d9a737f10c58bf6824d 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/hfi1: Prevent panic when SDMA is disabled If the hfi1 module is loaded with HFI1_CAP_SDMA off, a call to hfi1_write_iter() will dereference a NULL pointer and panic. A typical stack frame is: sdma_select_user_engine [hfi1] hfi1_user_sdma_process_request [hfi1] hfi1_write_iter [hfi1] do_iter_readv_writev do_iter_write vfs_writev do_writev do_syscall_64 The fix is to test for SDMA in hfi1_write_iter() and fail the I/O with EINVAL.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 19th percentile

Report tools

JSON

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%

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

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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.

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Affected 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.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernelbefore 4.14.283
  • linux linux kernel4.15 and later · before 4.19.247
  • linux linux kernel4.20 and later · before 5.4.198
  • linux linux kernel5.5 and later · before 5.10.121
  • linux linux kernel5.11 and later · before 5.15.46
  • linux linux kernel5.16 and later · before 5.17.14
  • linux linux kernel5.18 and later · before 5.18.3

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

    • 4.9affected
    • 0cb2aa690c7ef14ad1f544288349abb5434bb75d and later · before 33794e8e9bcb4affc0ebff9cdec85acc8b8a1762affected · git
    • 0cb2aa690c7ef14ad1f544288349abb5434bb75d and later · before 0e4dda8b3f4c07ee9ea670a10ea3171a5e63a86faffected · git
    • 0cb2aa690c7ef14ad1f544288349abb5434bb75d and later · before e60ad83f645ee6fadd5a8057ba267aeec54f08feaffected · git
    • 0cb2aa690c7ef14ad1f544288349abb5434bb75d and later · before cc80d3c37cec9d6ddb140483647901bc7cc6c31daffected · git
    • 0cb2aa690c7ef14ad1f544288349abb5434bb75d and later · before 32e6aea33944f364d51cd263e4cd236393a188b6affected · git
    • 0cb2aa690c7ef14ad1f544288349abb5434bb75d and later · before 29952ab85d6c3fe0b7909d9a737f10c58bf6824daffected · git
    • 0cb2aa690c7ef14ad1f544288349abb5434bb75d and later · before 22e7e400fd1a890db2ea13686324aff50e972f4faffected · git
    • 0cb2aa690c7ef14ad1f544288349abb5434bb75d and later · before 629e052d0c98e46dde9f0824f0aa437f678d9b8faffected · git
    • before 4.9not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.18.5-15.18.5-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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 KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-49427Feb 26, 2025 · iommu/mediatek: Remove clk_disable in mtk_iommu_remove
    22Monitor
  • ← EarlierCVE-2022-49428Feb 26, 2025 · f2fs: fix to do sanity check on inline_dots inode
    22Monitor
  • Later →CVE-2022-49430Feb 26, 2025 · Input: gpio-keys - cancel delayed work only in case of GPIO
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux0e4dda8b3f4c07ee9ea670a10ea3171a5e63a86fVendor (CNA)
Linux Linux22e7e400fd1a890db2ea13686324aff50e972f4fVendor (CNA)
Linux Linux29952ab85d6c3fe0b7909d9a737f10c58bf6824dVendor (CNA)
Linux Linux32e6aea33944f364d51cd263e4cd236393a188b6Vendor (CNA)
Linux Linux33794e8e9bcb4affc0ebff9cdec85acc8b8a1762Vendor (CNA)
Linux Linux629e052d0c98e46dde9f0824f0aa437f678d9b8fVendor (CNA)
Linux Linuxcc80d3c37cec9d6ddb140483647901bc7cc6c31dVendor (CNA)
Linux Linuxe60ad83f645ee6fadd5a8057ba267aeec54f08feVendor (CNA)
debian:linux5.18.5-1 · Debian:12Package 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.

EPSS, last 120 days

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 researchers

Finders, 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)

CWE-476 · NULL Pointer Dereference

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.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records