bnx2x: fix double free in bnx2x_init_firmware() error path

Summary

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.

Timeline

1. Sep 11, 2026, 7:44 PM UTCCVE published
2. Oct 19, 2026, 8:49 AM UTCRecord last updated

Affected versions

• Linux Linux

  From 94a78b79cb5f14c09a42522738d6694c6a1cdd20 · fixed in 770715784b689749014ce193ef986b706fe8f51c; From 94a78b79cb5f14c09a42522738d6694c6a1cdd20 · fixed in c44e5d6c3189241d5f791bc7b1eddde6b92f802c; From 94a78b79cb5f14c09a42522738d6694c6a1cdd20 · fixed in 07d4516e3eb1fcde4a5db29eb556cdb0ebba6265; From 94a78b79cb5f14c09a42522738d6694c6a1cdd20 · fixed in ac280f6872e75df49f3004505bcddff91d9e5362; From 94a78b79cb5f14c09a42522738d6694c6a1cdd20 · fixed in dc98e727b9cfc5e19c796bf893878153f00b222b; From 94a78b79cb5f14c09a42522738d6694c6a1cdd20 · fixed in 4d36e38e48340a1ccf92a98c7a22d07a954e5aa3; From 94a78b79cb5f14c09a42522738d6694c6a1cdd20 · fixed in a142c024f07d623e2b6b25943f6c36d4b6b0b4c6; From 94a78b79cb5f14c09a42522738d6694c6a1cdd20 · fixed in d2796ffe38cb4155afe0eab23636295b096c27a5

• Linux Linux

  2.6.31

• KernelLinux

  From 2.6.31 · fixed in 5.10.270; From 5.11.0 · fixed in 5.15.221; From 5.16.0 · fixed in 6.1.188; From 6.2.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.109; From 6.13.0 · fixed in 6.18.50; From 6.19.0 · fixed in 7.2.4

References 8