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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-72156

fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header() mpf_ops_parse_header() reads header_size from the bitstream at MPF_HEADER_SIZE_OFFSET (24). When header_size is zero, the expression *(buf + header_size - 1) reads one byte before the buffer start. Since initial_header_size is set to 71 in mpf_ops, the fpga-mgr core guarantees the buffer is large enough to reach MPF_HEADER_SIZE_OFFSET. The only real gap is the zero header_size case, which cannot be resolved by providing a larger buffer, so return -EINVAL.

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

  • 5f8d4a9008307e0bf210906948953386935d361c to < e45ec24d8e986d79a8e07f49a816c414ad283622affected
  • 5f8d4a9008307e0bf210906948953386935d361c to < 0d3766fecd9b2db39a18b48021c15c522997ec25affected
  • 5f8d4a9008307e0bf210906948953386935d361c to < a1baee24df72ec8fd1d6925c1d5162ffff4ee3bfaffected
  • 5f8d4a9008307e0bf210906948953386935d361c to < c9ef79e34bc1eac4fd59051e5c7b96a74e59d46faffected
  • 5f8d4a9008307e0bf210906948953386935d361c to < 3da8eaf5469eda2353b72038d644fabddb848ce1affected
  • 5f8d4a9008307e0bf210906948953386935d361c to < 43a1974da6bc7ce8f4d1dc1d03d56997428c29c3affected

Linux Linux

Default version status: affected

  • 6.0affected
  • 0 to < 6.0unaffected
  • 6.1.178 to ≤ 6.1.*unaffected
  • 6.6.145 to ≤ 6.6.*unaffected
  • 6.12.97 to ≤ 6.12.*unaffected
  • 6.18.40 to ≤ 6.18.*unaffected
  • 7.1.5 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References