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CVE-2026-43442

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix physical SQE bounds check for SQE_MIXED 128-byte ops When IORING_SETUP_SQE_MIXED is used without IORING_SETUP_NO_SQARRAY, the boundary check for 128-byte SQE operations in io_init_req() validated the logical SQ head position rather than the physical SQE index. The existing check: !(ctx->cached_sq_head & (ctx->sq_entries - 1)) ensures the logical position isn't at the end of the ring, which is correct for NO_
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d7fb7e3b740fed769e28c93d1164ac5ca9a6f6154054d073ab6206f1d138bd74
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":"affected","product":"Linux","programFiles":["io_uring/io_uring.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0036928051f70359cacaeca3de4f216f03a703fe07d95d17dedf736a82fbc849 · sha256:d52a35589561b86d… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["io_uring/io_uring.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1f794f9bed3e5cf7250a3b4daf112a72ed1513e9","status":"affected","version":"1cba30bf9fdd6c982708f3587f609a30c370d889","versionType":"git"},{"lessThan":"6f02c6b196036dbb6defb4647d8707d29b7fe95b","status":"affected","version":"1cba30bf9fdd6c982708f3587f609a30c370d889","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0036928051f70359cacaeca3de4f216f03a703fe07d95d17dedf736a82fbc849 · sha256:d52a35589561b86d… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["io_uring/io_uring.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0036928051f70359cacaeca3de4f216f03a703fe07d95d17dedf736a82fbc849 · sha256:d52a35589561b86d… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["io_uring/io_uring.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1f794f9bed3e5cf7250a3b4daf112a72ed1513e9","status":"affected","version":"1cba30bf9fdd6c982708f3587f609a30c370d889","versionType":"git"},{"lessThan":"6f02c6b196036dbb6defb4647d8707d29b7fe95b","status":"affected","version":"1cba30bf9fdd6c982708f3587f609a30c370d889","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0036928051f70359cacaeca3de4f216f03a703fe07d95d17dedf736a82fbc849 · sha256:d52a35589561b86d… · /containers/cna/affected/0

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:v2:0036928051f70359cacaeca3de4f216f03a703fe07d95d17dedf736a82fbc849 · sha256:d52a35589561b86d… · /containers/cna/metrics/0/cvssV3_1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/1f794f9bed3e5cf7250a3b4daf112a72ed1513e9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0036928051f70359cacaeca3de4f216f03a703fe07d95d17dedf736a82fbc849 · sha256:d52a35589561b86d… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/6f02c6b196036dbb6defb4647d8707d29b7fe95b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0036928051f70359cacaeca3de4f216f03a703fe07d95d17dedf736a82fbc849 · sha256:d52a35589561b86d… · /containers/cna/references/1

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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