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CVE-2026-64292

In the Linux kernel, the following vulnerability has been resolved: iommufd: Move vevent memory allocation outside spinlock The veventq memory allocation happens inside the spinlock. Given its depth is decided by the user space, this leaves a vulnerability, where userspace can allocate large queues to exhaust atomic memory reserves. Move the allocation outside the spinlock and use GFP_NOWAIT, which can fail fast under memory pressure without dipping into the GFP_ATOMIC reserves or direct-recl
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ab1685cd499b5c8987dd7c632432c86d65ae06973b13dd6f941bd2a97786124b
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/iommu/iommufd/driver.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"779480ea79551c31964e74b9aef0e730faa3aa11","status":"affected","version":"e36ba5ab808ef6237c3148d469c8238674230e2b","versionType":"git"},{"lessThan":"6c5fc40200cd0a87d66a368eee00df4d1cca946e","status":"affected","version":"e36ba5ab808ef6237c3148d469c8238674230e2b","versionType":"git"},{"lessThan":"47443565d10c51366c9382dbc8597cd6c460b8a2","status":"affected","version":"e36ba5ab808ef62…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6723282052e980892425b0169684f47be6c5eed04ececf0692b7c42f38402aea · sha256:092269fc6ee0b28d… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iommu/iommufd/driver.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":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_fo…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6723282052e980892425b0169684f47be6c5eed04ececf0692b7c42f38402aea · sha256:092269fc6ee0b28d… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iommu/iommufd/driver.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"779480ea79551c31964e74b9aef0e730faa3aa11","status":"affected","version":"e36ba5ab808ef6237c3148d469c8238674230e2b","versionType":"git"},{"lessThan":"6c5fc40200cd0a87d66a368eee00df4d1cca946e","status":"affected","version":"e36ba5ab808ef6237c3148d469c8238674230e2b","versionType":"git"},{"lessThan":"47443565d10c51366c9382dbc8597cd6c460b8a2","status":"affected","version":"e36ba5ab808ef62…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6723282052e980892425b0169684f47be6c5eed04ececf0692b7c42f38402aea · sha256:092269fc6ee0b28d… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iommu/iommufd/driver.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":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_fo…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6723282052e980892425b0169684f47be6c5eed04ececf0692b7c42f38402aea · sha256:092269fc6ee0b28d… · /containers/cna/affected/1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/47443565d10c51366c9382dbc8597cd6c460b8a2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6723282052e980892425b0169684f47be6c5eed04ececf0692b7c42f38402aea · sha256:092269fc6ee0b28d… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/6c5fc40200cd0a87d66a368eee00df4d1cca946e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6723282052e980892425b0169684f47be6c5eed04ececf0692b7c42f38402aea · sha256:092269fc6ee0b28d… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/779480ea79551c31964e74b9aef0e730faa3aa11"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6723282052e980892425b0169684f47be6c5eed04ececf0692b7c42f38402aea · sha256:092269fc6ee0b28d… · /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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