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CVE-2026-64074

In the Linux kernel, the following vulnerability has been resolved: fs/statmount: fix slab out-of-bounds write in statmount_mnt_idmap statmount_mnt_idmap() writes one mapping with seq_printf() and then manually advances seq->count to include the NUL separator. If seq_printf() overflows, seq_set_overflow() sets seq->count to seq->size. The manual seq->count++ changes this to seq->size + 1. seq_has_overflowed() then no longer detects the overflow. The corrupted count returns to statmount_string
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3ab206b3953ade222dea38f19381bc364f3688b0ff7cecd73c4c2a46fc69bc06
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/mnt_idmapping.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e37ea2c6f17f273813ea4e8e94c102591d598ce1","status":"affected","version":"37c4a9590e1efcae7749682239fc22a330d2d325","versionType":"git"},{"lessThan":"93614949dc86f068e3c32c32cf1ee2a2323177a7","status":"affected","version":"37c4a9590e1efcae7749682239fc22a330d2d325","versionType":"git"},{"lessThan":"a3bf0f28d4ba16e1f35f8c983bb04426b87e2a78","status":"affected","version":"37c4a9590e1efcae7749682239f…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67d705d9fa9c9e25f34718bdbcb682d5d8620b7ab5889cc24990019f3c362650 · sha256:500a1006f8f576cf… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/mnt_idmapping.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":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67d705d9fa9c9e25f34718bdbcb682d5d8620b7ab5889cc24990019f3c362650 · sha256:500a1006f8f576cf… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/mnt_idmapping.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e37ea2c6f17f273813ea4e8e94c102591d598ce1","status":"affected","version":"37c4a9590e1efcae7749682239fc22a330d2d325","versionType":"git"},{"lessThan":"93614949dc86f068e3c32c32cf1ee2a2323177a7","status":"affected","version":"37c4a9590e1efcae7749682239fc22a330d2d325","versionType":"git"},{"lessThan":"a3bf0f28d4ba16e1f35f8c983bb04426b87e2a78","status":"affected","version":"37c4a9590e1efcae7749682239f…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67d705d9fa9c9e25f34718bdbcb682d5d8620b7ab5889cc24990019f3c362650 · sha256:500a1006f8f576cf… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/mnt_idmapping.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":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67d705d9fa9c9e25f34718bdbcb682d5d8620b7ab5889cc24990019f3c362650 · sha256:500a1006f8f576cf… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/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:v2:67d705d9fa9c9e25f34718bdbcb682d5d8620b7ab5889cc24990019f3c362650 · sha256:500a1006f8f576cf… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/93614949dc86f068e3c32c32cf1ee2a2323177a7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67d705d9fa9c9e25f34718bdbcb682d5d8620b7ab5889cc24990019f3c362650 · sha256:500a1006f8f576cf… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/a3bf0f28d4ba16e1f35f8c983bb04426b87e2a78"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67d705d9fa9c9e25f34718bdbcb682d5d8620b7ab5889cc24990019f3c362650 · sha256:500a1006f8f576cf… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/e37ea2c6f17f273813ea4e8e94c102591d598ce1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67d705d9fa9c9e25f34718bdbcb682d5d8620b7ab5889cc24990019f3c362650 · sha256:500a1006f8f576cf… · /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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