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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-98492

net: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths

Description

In the Linux kernel, the following vulnerability has been resolved: net: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths Fix 3 leaks in macb_alloc() error paths: - Tx buffer allocated but crossing a 4G boundary: Tx leaked. - Rx buffer allocation fails: Tx leaked. - Rx buffer allocated but crossing a 4G boundary: Tx & Rx leaked. This is because our error handling calls macb_free(bp) which in turn frees the buffers stored in bp->queues[0], but nothing has been stored in there. Fix by storing allocated buffers into bp->queues[0] ASAP.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 78d901897b3cae06b38f54e48a2378cf9da21175 to < bda487567d0b7b15dfa876511085c0666b9efad5affected
  • 78d901897b3cae06b38f54e48a2378cf9da21175 to < 259e6cbb6a097da8ced544ee92a6fbde35aa1338affected
  • 78d901897b3cae06b38f54e48a2378cf9da21175 to < 23d42b9a3bcd55b17d3b371544fedc708c2397e9affected
  • 982a4d9a2e12b693f684eff943043a607628d871affected
  • 6.17.3 to < 6.18affected

Linux Linux

Default version status: affected

  • 6.18affected
  • 0 to < 6.18unaffected
  • 6.18.55 to ≤ 6.18.*unaffected
  • 7.2.9 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References