CVE-2026-43157

Summary

In the Linux kernel, the following vulnerability has been resolved:

octeontx2-af: CGX: fix bitmap leaks

The RX/TX flow-control bitmaps (rx_fc_pfvf_bmap and tx_fc_pfvf_bmap) are allocated by cgx_lmac_init() but never freed in cgx_lmac_exit(). Unbinding and rebinding the driver therefore triggers kmemleak:

unreferenced object (size 16):
    backtrace:
      rvu_alloc_bitmap
      cgx_probe

Free both bitmaps during teardown.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxe740003874edc13e468d19233f99787bedb4bb8e < ad8a13a45c5c24d0d32de9a1c3fd58498a675eceaffected
LinuxLinuxe740003874edc13e468d19233f99787bedb4bb8e < 013ac469596a0b8671e62d89c89ae0bd46bbe667affected
LinuxLinuxe740003874edc13e468d19233f99787bedb4bb8e < ccef79af58b43787c25710c9da96651c6ddfe50faffected
LinuxLinuxe740003874edc13e468d19233f99787bedb4bb8e < 6d389382ee655128056fbdab86baad8495ffbf33affected
LinuxLinuxe740003874edc13e468d19233f99787bedb4bb8e < ccca14bbdcc25829d355b9f4d3249f43dadb71c1affected
LinuxLinuxe740003874edc13e468d19233f99787bedb4bb8e < 3def995c4ede842adf509c410e92d09a0cedc965affected
LinuxLinux5.18affected
LinuxLinux0 < 5.18unaffected
LinuxLinux6.1.165 <= 6.1.*unaffected
LinuxLinux6.6.128 <= 6.6.*unaffected
LinuxLinux6.12.75 <= 6.12.*unaffected
LinuxLinux6.18.16 <= 6.18.*unaffected
LinuxLinux6.19.6 <= 6.19.*unaffected
LinuxLinux7.0 <= *unaffected

Weaknesses

References