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CVE-2026-53187

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate cpu_id against nr_cpu_ids in DMAH alloc The cpu_id attribute supplied by user space through UVERBS_ATTR_ALLOC_DMAH_CPU_ID is passed directly to cpumask_test_cpu() without first verifying that the value is within the valid CPU range. Passing such untrusted data to cpumask_test_cpu() may lead to an out-of-bounds read of the underlying cpumask bitmap: the helper expands to a test_bit() that indexes the bitmap
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5d96669bc0b8766e2bf42ec6f7ff0c8505818089f58c8994332019786d4b7373
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/infiniband/core/uverbs_std_types_dmah.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"bd5e818be7964c1689fba2dad9e6bd3a827fee74","status":"affected","version":"d83edab562a496a42720902a1d2effccd05c37c5","versionType":"git"},{"lessThan":"0efbb6b54ff56300867027d8e0800d0e32226a20","status":"affected","version":"d83edab562a496a42720902a1d2effccd05c37c5","versionType":"git"},{"lessThan":"323c98a4ff06aa28114f2bf658fb43eb3b536bbc","status":"affected","version"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fdd59576afa454bfec7a927254c1bca0c88f2b2ff2b25f135ef1383a8574b3e7 · sha256:9bf675cea41da1f3… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/infiniband/core/uverbs_std_types_dmah.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.17"},{"lessThan":"6.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"orig…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fdd59576afa454bfec7a927254c1bca0c88f2b2ff2b25f135ef1383a8574b3e7 · sha256:9bf675cea41da1f3… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/infiniband/core/uverbs_std_types_dmah.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"bd5e818be7964c1689fba2dad9e6bd3a827fee74","status":"affected","version":"d83edab562a496a42720902a1d2effccd05c37c5","versionType":"git"},{"lessThan":"0efbb6b54ff56300867027d8e0800d0e32226a20","status":"affected","version":"d83edab562a496a42720902a1d2effccd05c37c5","versionType":"git"},{"lessThan":"323c98a4ff06aa28114f2bf658fb43eb3b536bbc","status":"affected","version"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fdd59576afa454bfec7a927254c1bca0c88f2b2ff2b25f135ef1383a8574b3e7 · sha256:9bf675cea41da1f3… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/infiniband/core/uverbs_std_types_dmah.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.17"},{"lessThan":"6.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"orig…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fdd59576afa454bfec7a927254c1bca0c88f2b2ff2b25f135ef1383a8574b3e7 · sha256:9bf675cea41da1f3… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:fdd59576afa454bfec7a927254c1bca0c88f2b2ff2b25f135ef1383a8574b3e7 · sha256:9bf675cea41da1f3… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/0efbb6b54ff56300867027d8e0800d0e32226a20"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fdd59576afa454bfec7a927254c1bca0c88f2b2ff2b25f135ef1383a8574b3e7 · sha256:9bf675cea41da1f3… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/323c98a4ff06aa28114f2bf658fb43eb3b536bbc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fdd59576afa454bfec7a927254c1bca0c88f2b2ff2b25f135ef1383a8574b3e7 · sha256:9bf675cea41da1f3… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/bd5e818be7964c1689fba2dad9e6bd3a827fee74"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fdd59576afa454bfec7a927254c1bca0c88f2b2ff2b25f135ef1383a8574b3e7 · sha256:9bf675cea41da1f3… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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