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CVE-2026-31438

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix kernel BUG in netfs_limit_iter() for ITER_KVEC iterators When a process crashes and the kernel writes a core dump to a 9P filesystem, __kernel_write() creates an ITER_KVEC iterator. This iterator reaches netfs_limit_iter() via netfs_unbuffered_write(), which only handles ITER_FOLIOQ, ITER_BVEC and ITER_XARRAY iterator types, hitting the BUG() for any other type. Fix this by adding netfs_limit_kvec() following the s
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:40f24bff0f1c033d11d579188584138715e3bfbeda84430bd579b87e75c0fdbd
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":["fs/netfs/iterator.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"18c2e20b42dd21db599e42d05ddaeeb647b2bb6d","status":"affected","version":"cae932d3aee55035a54415dcea8e7ecf2ec469b5","versionType":"git"},{"lessThan":"4bc2d72c7695cedf6d4e1a558924903c2b28a78e","status":"affected","version":"cae932d3aee55035a54415dcea8e7ecf2ec469b5","versionType":"git"},{"lessThan":"00d6df7115f6972370974212de9088087820802e","status":"affected","version":"cae932d3aee55035a54415dcea…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d81c8f1e13c8b0fda16c18573b44f1e9323af2edadd536c9c4e8529112c84466 · sha256:08c8d4f7899522d9… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/netfs/iterator.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.8"},{"lessThan":"6.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThanOrEq…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d81c8f1e13c8b0fda16c18573b44f1e9323af2edadd536c9c4e8529112c84466 · sha256:08c8d4f7899522d9… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/netfs/iterator.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"18c2e20b42dd21db599e42d05ddaeeb647b2bb6d","status":"affected","version":"cae932d3aee55035a54415dcea8e7ecf2ec469b5","versionType":"git"},{"lessThan":"4bc2d72c7695cedf6d4e1a558924903c2b28a78e","status":"affected","version":"cae932d3aee55035a54415dcea8e7ecf2ec469b5","versionType":"git"},{"lessThan":"00d6df7115f6972370974212de9088087820802e","status":"affected","version":"cae932d3aee55035a54415dcea…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d81c8f1e13c8b0fda16c18573b44f1e9323af2edadd536c9c4e8529112c84466 · sha256:08c8d4f7899522d9… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/netfs/iterator.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.8"},{"lessThan":"6.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThanOrEq…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d81c8f1e13c8b0fda16c18573b44f1e9323af2edadd536c9c4e8529112c84466 · sha256:08c8d4f7899522d9… · /containers/cna/affected/1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/00d6df7115f6972370974212de9088087820802e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d81c8f1e13c8b0fda16c18573b44f1e9323af2edadd536c9c4e8529112c84466 · sha256:08c8d4f7899522d9… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/18c2e20b42dd21db599e42d05ddaeeb647b2bb6d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d81c8f1e13c8b0fda16c18573b44f1e9323af2edadd536c9c4e8529112c84466 · sha256:08c8d4f7899522d9… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/4bc2d72c7695cedf6d4e1a558924903c2b28a78e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d81c8f1e13c8b0fda16c18573b44f1e9323af2edadd536c9c4e8529112c84466 · sha256:08c8d4f7899522d9… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/67e467a11f62ff64ad219dc6aa5459e132c79d14"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d81c8f1e13c8b0fda16c18573b44f1e9323af2edadd536c9c4e8529112c84466 · sha256:08c8d4f7899522d9… · /containers/cna/references/3

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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