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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-97421

RDMA/umem: Be careful about boundary conditions in ib_umem_find_best_pgsz()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/umem: Be careful about boundary conditions in ib_umem_find_best_pgsz() Several corner cases, especially important on 32 bits: - umem->iova is u64, the function argument should pass in u64 or iova will be truncated - Check that the length is not too large for the iova - Check that lengths > 4G don't overflow the GENMASK

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

  • a40c20dabdf9045270767c75918feb67f0727c89 to < 3014da7587ce006cd08004fd6b257626b314e0a3affected
  • a40c20dabdf9045270767c75918feb67f0727c89 to < ddccf6cc3861de2fe60986933bead79220e0d797affected
  • a40c20dabdf9045270767c75918feb67f0727c89 to < e9bbb5f5349ef560ff6f0395564f04c3aa664559affected
  • a40c20dabdf9045270767c75918feb67f0727c89 to < ae3cf7d2c4d506c5c91746321644e1a08d989e2aaffected
  • a40c20dabdf9045270767c75918feb67f0727c89 to < 5fc5b73109540809b094710fac44da81dd8a3ff8affected
  • a40c20dabdf9045270767c75918feb67f0727c89 to < 09ea6837a0434fb4db99528a5055b6d822135dcfaffected
  • 85e40ba1c4a5246b35e91c2ed69d4680426904d7affected
  • 59f07434b297e2268f5d5c567db5b09145245cf1affected
  • 488229b7729d7becf4c39c5e74fb709fb35115c2affected
  • 5.4.73 to < 5.5affected
  • 5.8.17 to < 5.9affected
  • 5.9.2 to < 5.10affected

Linux Linux

Default version status: affected

  • 5.10affected
  • 0 to < 5.10unaffected
  • 5.15.222 to ≤ 5.15.*unaffected
  • 6.1.189 to ≤ 6.1.*unaffected
  • 6.6.158 to ≤ 6.6.*unaffected
  • 6.12.111 to ≤ 6.12.*unaffected
  • 6.18.53 to ≤ 6.18.*unaffected
  • 7.2 to ≤ *unaffected

References