CVE-2026-89582

bnx2x: fix double free in bnx2x_init_firmware() error path

N/A
Published: September 11, 2026 at 07:44 PM UTC
Updated: October 19, 2026 at 09:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.6.3194a78b79cb5f14c09a42522738d6694c6a1cdd20
Vendor states this is fixed in 07d4516e3eb1fcde4a5db29eb556cdb0ebba6265 (fixed)
Vendor states this is fixed in 4d36e38e48340a1ccf92a98c7a22d07a954e5aa3 (fixed)
Vendor states this is fixed in 770715784b689749014ce193ef986b706fe8f51c (fixed)
Vendor states this is fixed in a142c024f07d623e2b6b25943f6c36d4b6b0b4c6 (fixed)
Vendor states this is fixed in ac280f6872e75df49f3004505bcddff91d9e5362 (fixed)
Vendor states this is fixed in c44e5d6c3189241d5f791bc7b1eddde6b92f802c (fixed)
Vendor states this is fixed in d2796ffe38cb4155afe0eab23636295b096c27a5 (fixed)
Vendor states this is fixed in dc98e727b9cfc5e19c796bf893878153f00b222b (fixed)
Vendor states this is fixed in 2.6.31 (unaffected)
Vendor states this is fixed in 5.10.270 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.109 (unaffected)
Vendor states this is fixed in 6.18.50 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.4 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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