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CVE-2026-43274

In the Linux kernel, the following vulnerability has been resolved: mailbox: mchp-ipc-sbi: fix out-of-bounds access in mchp_ipc_get_cluster_aggr_irq() The cluster_cfg array is dynamically allocated to hold per-CPU configuration structures, with its size based on the number of online CPUs. Previously, this array was indexed using hartid, which may be non-contiguous or exceed the bounds of the array, leading to out-of-bounds access. Switch to using cpuid as the index, as it is guaranteed to be w
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3147d279eee8df4590a7d75e9047bc882717cb7adaf2ec981d6e9cca73c60910
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/mailbox/mailbox-mchp-ipc-sbi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"95438699c92947155823dcd3918049a07f3cd867","status":"affected","version":"e4b1d67e71419c4af581890ecea84b04920d4116","versionType":"git"},{"lessThan":"0442b6229e2eedc95a6d3d18ce75dec7f5b5377c","status":"affected","version":"e4b1d67e71419c4af581890ecea84b04920d4116","versionType":"git"},{"lessThan":"f7c330a8c83c9b0332fd524097eaf3e69148164d","status":"affected","version":"e4b1d67…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6a669d4e13838a79491fa87eddc69a442e64a1752b5c7f49e1bbf15c71c681eb · sha256:e6c8489b3a34a8f8… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/mailbox/mailbox-mchp-ipc-sbi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.16","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_com…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6a669d4e13838a79491fa87eddc69a442e64a1752b5c7f49e1bbf15c71c681eb · sha256:e6c8489b3a34a8f8… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/mailbox/mailbox-mchp-ipc-sbi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"95438699c92947155823dcd3918049a07f3cd867","status":"affected","version":"e4b1d67e71419c4af581890ecea84b04920d4116","versionType":"git"},{"lessThan":"0442b6229e2eedc95a6d3d18ce75dec7f5b5377c","status":"affected","version":"e4b1d67e71419c4af581890ecea84b04920d4116","versionType":"git"},{"lessThan":"f7c330a8c83c9b0332fd524097eaf3e69148164d","status":"affected","version":"e4b1d67…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6a669d4e13838a79491fa87eddc69a442e64a1752b5c7f49e1bbf15c71c681eb · sha256:e6c8489b3a34a8f8… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/mailbox/mailbox-mchp-ipc-sbi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.16","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_com…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6a669d4e13838a79491fa87eddc69a442e64a1752b5c7f49e1bbf15c71c681eb · sha256:e6c8489b3a34a8f8… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.4,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6a669d4e13838a79491fa87eddc69a442e64a1752b5c7f49e1bbf15c71c681eb · sha256:e6c8489b3a34a8f8… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/0442b6229e2eedc95a6d3d18ce75dec7f5b5377c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6a669d4e13838a79491fa87eddc69a442e64a1752b5c7f49e1bbf15c71c681eb · sha256:e6c8489b3a34a8f8… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/95438699c92947155823dcd3918049a07f3cd867"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6a669d4e13838a79491fa87eddc69a442e64a1752b5c7f49e1bbf15c71c681eb · sha256:e6c8489b3a34a8f8… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/f7c330a8c83c9b0332fd524097eaf3e69148164d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6a669d4e13838a79491fa87eddc69a442e64a1752b5c7f49e1bbf15c71c681eb · sha256:e6c8489b3a34a8f8… · /containers/cna/references/2

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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