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CVE PROGRAM SOURCE RECORD9.3 Critical

CVE-2026-64018

net: mana: validate rx_req_idx to prevent out-of-bounds array access

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: net: mana: validate rx_req_idx to prevent out-of-bounds array access In mana_hwc_rx_event_handler(), rx_req_idx is derived from sge->address in DMA-coherent memory. In Confidential VMs (SEV-SNP/TDX), this memory is shared unencrypted and HW can modify WQE contents at any time. No bounds check exists on rx_req_idx, which can lead to an out-of-bounds access into reqs[]. Add bounds check on rx_req_idx in mana_hwc_rx_event_handler() before using it to index the reqs[] array.

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

  • ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f to < 5ddc715324badd7f2641bc177db1d027b402adaeaffected
  • ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f to < ff1d5af207bcea857d45fe81505f1bc4b29eaef0affected
  • ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f to < 01f7f893d5e1baae995beeb86cd0f3e6bb2a3b01affected
  • ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f to < 763a372d344fb12fae566d36ddb46e92454ad58caffected
  • ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f to < fa627a5eaa83fc0261f44ef3769693b886ca6e27affected
  • ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f to < 355e9f2b2a7887ca38100127989af3e422ba71d0affected
  • ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f to < b809d0409991b75a6cff846a5ac27c3062953f84affected

Linux Linux

Default version status: affected

  • 5.13affected
  • 0 to < 5.13unaffected
  • 5.15.209 to ≤ 5.15.*unaffected
  • 6.1.175 to ≤ 6.1.*unaffected
  • 6.6.142 to ≤ 6.6.*unaffected
  • 6.12.92 to ≤ 6.12.*unaffected
  • 6.18.34 to ≤ 6.18.*unaffected
  • 7.0.11 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References