CVEvulnerability
CVE-2026-89582
- Status
- Received
- Published
- 2026-09-11
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/07d4516e3eb1fcde4a5db29eb556cdb0ebba6265 git.kernel.org
- https://git.kernel.org/stable/c/4d36e38e48340a1ccf92a98c7a22d07a954e5aa3 git.kernel.org
- https://git.kernel.org/stable/c/770715784b689749014ce193ef986b706fe8f51c git.kernel.org
- https://git.kernel.org/stable/c/a142c024f07d623e2b6b25943f6c36d4b6b0b4c6 git.kernel.org
- https://git.kernel.org/stable/c/ac280f6872e75df49f3004505bcddff91d9e5362 git.kernel.org
- https://git.kernel.org/stable/c/c44e5d6c3189241d5f791bc7b1eddde6b92f802c git.kernel.org
- https://git.kernel.org/stable/c/d2796ffe38cb4155afe0eab23636295b096c27a5 git.kernel.org
- https://git.kernel.org/stable/c/dc98e727b9cfc5e19c796bf893878153f00b222b git.kernel.org