CVE Intelligence
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CVE-2026-89582 — bnx2x: fix double free in bnx2x_init_firmware() error path

In the Linux kernel, the following vulnerability has been resolved: bnx2x: fix double free in bnx2x_init_firmware() error path bnx2x_init_firmware() frees bp->init_ops, bp->init_data and bp->init_ops_offsets in its error path without setting them to NULL. The cleanup function bnx2x_release_firmware() frees the same three pointers unconditionally, so if init_firmware fails and release_firmware is later called (e.g. from __bnx2x_remove or through the function state machine), all three are freed a second time. Set each pointer to NULL after kfree() in the error path so that the subsequent kfree(NULL) in bnx2x_release_firmware() is a safe no-op.

Published Sep 11, 2026 · Updated Oct 19, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: Linux

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 0.2% (30-day exploitation probability)+1

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
0.18%
ahead of 7% of scored CVEs · Oct 22, 2026
Affects
Linux
Linux
CVSS base
—
Score not published yet.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
  2. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
  3. Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Linux Linux ≥ 94a78b79cb5f14c09a42522738d6694c6a1cdd20 and < 770715784b689749014ce193ef986b706fe8f51c≥ 94a78b79cb5f14c09a42522738d6694c6a1cdd20 and < c44e5d6c3189241d5f791bc7b1eddde6b92f802c≥ 94a78b79cb5f14c09a42522738d6694c6a1cdd20 and < 07d4516e3eb1fcde4a5db29eb556cdb0ebba6265≥ 94a78b79cb5f14c09a42522738d6694c6a1cdd20 and < ac280f6872e75df49f3004505bcddff91d9e5362≥ 94a78b79cb5f14c09a42522738d6694c6a1cdd20 and < dc98e727b9cfc5e19c796bf893878153f00b222b≥ 94a78b79cb5f14c09a42522738d6694c6a1cdd20 and < 4d36e38e48340a1ccf92a98c7a22d07a954e5aa3≥ 94a78b79cb5f14c09a42522738d6694c6a1cdd20 and < a142c024f07d623e2b6b25943f6c36d4b6b0b4c6≥ 94a78b79cb5f14c09a42522738d6694c6a1cdd20 and < d2796ffe38cb4155afe0eab23636295b096c27a5
and 1 more version 2.6.31
Vulnerable CVE Program (cve.org) e CISA ADP

EPSS over time FIRST

Oct 15, 2026 → Oct 22, 2026 · 7 reading(s) · max 0.18%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Not enough vector or weakness data: use the affected application’s logs as a starting point.
application logs

Timeline

What happened to this CVE, newest first.

  • 2026
  • Record published
    Oct 15, 2026
  • Affected products added · linux/linux
    Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
  • Source status changed · → Received
    Oct 15, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 15, 2026 · NIST National Vulnerability Database
  • CVE published
    Sep 11, 2026 · Linux

Source activity

Repeated readings are counted rather than listed.

  • 1× References added · Oct 19, 2026 – Oct 19, 2026
  • 1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

10 on the record

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

  • CVE-2026-98911 dpaa2-switch: fix the error path in dpaa2_switch_rx() 53m
  • CVE-2026-98916 wifi: nl80211: check link is beaconing for color change 53m
  • CVE-2026-98915 media: video-i2c: use vb2_video_unregister_device on driver removal 53m
  • CVE-2026-98914 drm/amdgpu: cap ATOM command table nesting depth 53m
  • CVE-2026-98913 net: thunderx: fix PTP device ref leak in nicvf_probe() 53m
  • CVE-2026-98912 ALSA: seq: oss: Reject reads that cannot fit the next event 53m

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No CVSS score published by NVD, the CNA, CISA or GitHub so far.
  • No fixed version, patch or mitigation documented.
  • No CISA SSVC assessment.
  • No CWE classification.
  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-89582 is "bnx2x: fix double free in bnx2x_init_firmware() error path", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.18% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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