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VulnerabilityPublished Updated

CVE-2025-38569: Linux kernel · benet: fix BUG when creating VFs

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in f80b34ebc579216407b128e9d155bfcae875c30f : update Linux kernel when convenient.

Data as of 5 Nov 2026, 21:34 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch
Available – fixed in f80b34ebc579216407b128e9d155bfcae875c30f, f4e4e0c4bc4d799d6fa39055acdbc3af066cd13e, d5dc09ee5d74277bc47193fe28ce8703e229331b +13

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=5.4.291 <5.4.297
  • >=5.10.235 <5.10.241
  • >=5.15.179 <5.15.190
  • >=6.1.131 <6.1.148
  • >=6.6.83 <6.6.102
  • >=6.12.19 <6.12.42
  • >=6.13.7 <6.14
Fixed in
  • f80b34ebc579216407b128e9d155bfcae875c30f
  • f4e4e0c4bc4d799d6fa39055acdbc3af066cd13e
  • d5dc09ee5d74277bc47193fe28ce8703e229331b
  • c377ba2be9430d165a98e4b782902ed630bc7546
  • 3697e37e012bbd2bb5a5b467689811ba097b2eff
  • 975e73b9102d844a3dc3f091ad631c56145c8b4c
  • 46d44a23a3723a89deeb65b13cddb17f8d9f2700
  • 6.14
  • 6.12.42
  • 6.6.102
  • 6.1.148
  • 5a40f8af2ba1b9bdf46e2db10e8c9710538fbc63
  • 5.15.190
  • 5.10.241
  • 5.4.297
  • 0ddfe8b127ef1149fddccb79db6e6eaba7738e7d
LinuxLinuxAffected
  • =6.14
Fixed in–

Description

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.

References

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