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CVE-2026-43006

In the Linux kernel, the following vulnerability has been resolved: io_uring/rsrc: reject zero-length fixed buffer import validate_fixed_range() admits buf_addr at the exact end of the registered region when len is zero, because the check uses strict greater-than (buf_end > imu->ubuf + imu->len). io_import_fixed() then computes offset == imu->len, which causes the bvec skip logic to advance past the last bio_vec entry and read bv_offset from out-of-bounds slab memory. Return early from io_im
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:499e9816b6a0925c7b2e7a8e4334cdf9d638cac5ed430e7e8c47cee2ab83783d
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/rsrc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.22","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:60e1530c186e9466fe8707c63e92e6c200be97d337f6397f110b8e633b11f00f · sha256:26cc07e00a5d8994… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["io_uring/rsrc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"040a1e7e0e2f01851fec1dd2d96906f8636a9f75","status":"affected","version":"8622b20f23ed165f48b8ca61503a107d17f8d585","versionType":"git"},{"lessThan":"40170fc1a79c1b2e68f09ae6aac687b7305ae6f4","status":"affected","version":"8622b20f23ed165f48b8ca61503a107d17f8d585","versionType":"git"},{"lessThan":"111a12b422a8cfa93deabaef26fec48237163214","status":"affected","version":"8622b20f23ed165f48b8ca61503a10…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:60e1530c186e9466fe8707c63e92e6c200be97d337f6397f110b8e633b11f00f · sha256:26cc07e00a5d8994… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["io_uring/rsrc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.22","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:60e1530c186e9466fe8707c63e92e6c200be97d337f6397f110b8e633b11f00f · sha256:26cc07e00a5d8994… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["io_uring/rsrc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"040a1e7e0e2f01851fec1dd2d96906f8636a9f75","status":"affected","version":"8622b20f23ed165f48b8ca61503a107d17f8d585","versionType":"git"},{"lessThan":"40170fc1a79c1b2e68f09ae6aac687b7305ae6f4","status":"affected","version":"8622b20f23ed165f48b8ca61503a107d17f8d585","versionType":"git"},{"lessThan":"111a12b422a8cfa93deabaef26fec48237163214","status":"affected","version":"8622b20f23ed165f48b8ca61503a10…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:60e1530c186e9466fe8707c63e92e6c200be97d337f6397f110b8e633b11f00f · sha256:26cc07e00a5d8994… · /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:v2:60e1530c186e9466fe8707c63e92e6c200be97d337f6397f110b8e633b11f00f · sha256:26cc07e00a5d8994… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/040a1e7e0e2f01851fec1dd2d96906f8636a9f75"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:60e1530c186e9466fe8707c63e92e6c200be97d337f6397f110b8e633b11f00f · sha256:26cc07e00a5d8994… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/111a12b422a8cfa93deabaef26fec48237163214"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:60e1530c186e9466fe8707c63e92e6c200be97d337f6397f110b8e633b11f00f · sha256:26cc07e00a5d8994… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/40170fc1a79c1b2e68f09ae6aac687b7305ae6f4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:60e1530c186e9466fe8707c63e92e6c200be97d337f6397f110b8e633b11f00f · sha256:26cc07e00a5d8994… · /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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