ZeroDay Findings
Sign inSign up

Findings

CVE-2026-68291

In the Linux kernel, the following vulnerability has been resolved: idpf: fix max_vport related crash on allocation error during init Set adapter->max_vports only afte…

Published Aug 10, 2026 · corrected/updated Oct 15, 2026 · evidence confidence high

In the Linux kernel, the following vulnerability has been resolved: idpf: fix max_vport related crash on allocation error during init Set adapter->max_vports only after successful allocation of vports, netdevs and vport_config buffers. This fixes possible crashes on reset or rmmod, following failed allocation on init [ 305.981402] idpf 0000:83:00.0: enabling device (0100 -> 0102) [ 305.994464] idpf 0000:83:00.0: Device HW Reset initiated [ 320.416872] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 320.416918] #PF: supervisor read access in kernel mode [ 320.416942] #PF: error_code(0x0000) - not-present page [ 320.416963] PGD 2099657067 P4D 0 [ 320.416983] Oops: Oops: 0000 [#1] SMP NOPTI ... [ 320.417093] RIP: 0010:idpf_remove+0x118/0x200 [idpf] [ 320.417130] Code: 8b bb 98 09 00 00 e8 17 0f 5b e5 48 8b bb e8 08 00 00 e8 0b 0f 5b e5 66 83 bb 28 06 00 00 00 48 8b bb 20 06 00 00 74 49 31 ed 8b 04 ef 48 85 c0 74 2f 48 8b 78 20 e8 66 58 91 e5 48 8b 83 20 [ 320.417183] RSP: 0018:ff7322212903fdb8 EFLAGS: 00010246 [ 320.417205] RAX: 0000000000000000 RBX: ff4463de40300000 RCX: ff7322212903fd4c [ 320.417228] RDX: 0000000000000001 RSI: ffffffffa7f7d100 RDI: 0000000000000000 [ 320.417250] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 320.417272] R10: 0000000000000001 R11: ff4463de3a638f58 R12: ff4463be89ac7000 [ 320.417294] R13: ff4463be89ac7198 R14: ff4463be94fc7198 R15: ffffffffc0f10f20 [ 320.417317] FS: 00007f963c0e6740(0000) GS:ff4463fdd65d8000(0000) knlGS:0000000000000000 [ 320.417342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 320.417362] CR2: 0000000000000000 CR3: 00000020ba674002 CR4: 0000000000773ef0 [ 320.417385] PKRU: 55555554 [ 320.417398] Call Trace: [ 320.417412] [ 320.417429] pci_device_remove+0x42/0xb0 [ 320.417459] device_release_driver_internal+0x1a9/0x210 [ 320.417492] driver_detach+0x4b/0x90 [ 320.417516] bus_remove_driver+0x70/0x100 [ 320.417539] pci_unregister_driver+0x2e/0xb0 [ 320.417564] __do_sys_delete_m

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2026-68291 is a unknown public vulnerability record for this product. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether this product is in your estate, then compare installed versions with the affected ranges. Affected version ranges have not been ingested yet. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: EPSS 0.2%. It is not currently listed in the CISA Known Exploited catalog. Sources contributing to this record: cve_org, epss, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.

  • Patch and remediation

    No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 10, 2026 · NIST NVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: idpf: fix max_vport related crash on allocation error during init Set adapter->max_vports only after successful allocation of vports, netdevs and vport_config buffers. This fixes possible crashes on reset or rmmod, following failed allocation on init [ 305.981402] idpf 0000:83:00.0: enabling device (0100 -> 0102) [ 305.994464] idp

  2. Oct 15, 2026 · NIST NVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: idpf: fix max_vport related crash on allocation error during init Set adapter->max_vports only after successful allocation of vports, netdevs and vport_config buffers. This fixes possible crashes on reset or rmmod, following failed allocation on init [ 305.981402] idpf 0000:83:00.0: enabling device (0100 -> 0102) [ 305.994464] idp

Sources

  • CVE.orgVulnerability recordCVE-2026-68291

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-68291

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-68291

    In the Linux kernel, the following vulnerability has been resolved: idpf: fix max_vport related crash on allocation error during init Set adapter->max_vports only after successful allocation of vports, netdevs and vport_config buffers. This fixes possible crashes on reset or r

    nvd.nist.gov

References