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NVD / CVE Program· CNA Linux

CVE-2025-38569: benet: fix BUG when creating VFs

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: 0.18% (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 0ddfe8b127ef1149fddccb79db6e6eaba7738e7d, 3697e37e012bbd2bb5a5b467689811ba097b2eff, 46d44a23a3723a89deeb65b13cddb17f8d9f2700; cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0 5.15.200.1-1.

Low priority for now. Upgrade to Linux Linux 0ddfe8b127ef1149fddccb79db6e6eaba7738e7d, 3697e37e012bbd2bb5a5b467689811ba097b2eff, 46d44a23a3723a89deeb65b13cddb17f8d9f2700; cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0 5.15.200.1-1 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: benet: fix BUG when creating VFs benet crashes as soon as SRIOV VFs are created: kernel BUG at mm/vmalloc.c:3457! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 4 UID: 0 PID: 7408 Comm: test.sh Kdump: loaded Not tainted 6.16.0+ #1 PREEMPT(voluntary) [...] RIP: 0010:vunmap+0x5f/0x70 [...] Call Trace: <TASK> __iommu_dma_free+0xe8/0x1c0 be_cmd_set_mac_list+0x3fe/0x640 [be2net] be_cmd_set_mac+0xaf/0x110 [be2net] be_vf_eth_addr_config+0x19f/0x330 [be2net] be_vf_setup+0x4f7/0x990 [be2net] be_pci_sriov_configure+0x3a1/0x470 [be2net] sriov_numvfs_store+0x20b/0x380 kernfs_fop_write_iter+0x354/0x530 vfs_write+0x9b9/0xf60 ksys_write+0xf3/0x1d0 do_syscall_64+0x8c/0x3d0 be_cmd_set_mac_list() calls dma_free_coherent() under a spin_lock_bh. Fix it by freeing only after the lock has been released.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Aug 19, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 7th 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 · 0.1%

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

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When you'll hear from us

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  • when exploit code appears or is weaponized
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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
debiandebian linux

Affected versions

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

  • debian debian linux11.0
  • linux linux kernel5.10.235 and later · before 5.10.241
  • linux linux kernel5.15.179 and later · before 5.15.190
  • linux linux kernel6.1.131 and later · before 6.1.148
  • linux linux kernel6.6.83 and later · before 6.6.102
  • linux linux kernel5.4.291 and later · before 5.4.297
  • linux linux kernel6.13.7 and later · before 6.14
  • linux linux kernel6.14.1 and later · before 6.15.10
  • linux linux kernel6.16 and later · before 6.16.1
  • linux linux kernel6.12.19 and later · before 6.12.42
  • linux linux kernel6.14

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

    • 227a829c9067bf03b1967e7e0b1a6777fd57edef, 6.14affected
    • 797bb9439c0489bbea4b8808297ec7a569098667 and later · before 3697e37e012bbd2bb5a5b467689811ba097b2effaffected · git
    • 7cfae8627511361f90a1a22dfae556c3fbc5bd8d and later · before 975e73b9102d844a3dc3f091ad631c56145c8b4caffected · git
    • 671aaa17bd3153e25526934f92307169ce927b5e and later · before f80b34ebc579216407b128e9d155bfcae875c30faffected · git
    • 4393452e6c0c027971ec9bcc9557f52e63db3f0a and later · before 46d44a23a3723a89deeb65b13cddb17f8d9f2700affected · git
    • 41d731e7920387ea13e2fb440a1e235686faeeb9 and later · before c377ba2be9430d165a98e4b782902ed630bc7546affected · git
    • fd1ef3b1bdd3fec683ebd19eb3acc6a2cb60b5c6 and later · before 0ddfe8b127ef1149fddccb79db6e6eaba7738e7daffected · git
    • 1a82d19ca2d6835904ee71e2d40fd331098f94a0 and later · before d5dc09ee5d74277bc47193fe28ce8703e229331baffected · git
    • 1a82d19ca2d6835904ee71e2d40fd331098f94a0 and later · before f4e4e0c4bc4d799d6fa39055acdbc3af066cd13eaffected · git
    • 1a82d19ca2d6835904ee71e2d40fd331098f94a0 and later · before 5a40f8af2ba1b9bdf46e2db10e8c9710538fbc63affected · git

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.148-16.1.148-1
Debian:13linuxbefore 6.12.43-16.12.43-1
Debian:14linuxbefore 6.16.3-16.16.3-1

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-2025-38567Aug 19, 2025 · nfsd: avoid ref leak in nfsd_open_local_fh()
    18Monitor
  • ← EarlierCVE-2025-38568Aug 19, 2025 · net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing
    31Monitor
  • Later →CVE-2025-38570Aug 19, 2025 · eth: fbnic: unlink NAPIs from queues on error to open
    31Monitor

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 Linux0ddfe8b127ef1149fddccb79db6e6eaba7738e7dVendor (CNA)
Linux Linux3697e37e012bbd2bb5a5b467689811ba097b2effVendor (CNA)
Linux Linux46d44a23a3723a89deeb65b13cddb17f8d9f2700Vendor (CNA)
Linux Linux5.10.241Vendor (CNA)
Linux Linux5.15.190Vendor (CNA)
Linux Linux5.4.297Vendor (CNA)
Linux Linux5a40f8af2ba1b9bdf46e2db10e8c9710538fbc63Vendor (CNA)
Linux Linux6.1.148Vendor (CNA)
Linux Linux6.12.42Vendor (CNA)
Linux Linux6.14Vendor (CNA)
Linux Linux6.6.102Vendor (CNA)
Linux Linux975e73b9102d844a3dc3f091ad631c56145c8b4cVendor (CNA)
Linux Linuxc377ba2be9430d165a98e4b782902ed630bc7546Vendor (CNA)
Linux Linuxd5dc09ee5d74277bc47193fe28ce8703e229331bVendor (CNA)
Linux Linuxf4e4e0c4bc4d799d6fa39055acdbc3af066cd13eVendor (CNA)
Linux Linuxf80b34ebc579216407b128e9d155bfcae875c30fVendor (CNA)
cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.05.15.200.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.148-1 · 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 (10 more)

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

All records