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CVE-2026-23294

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix race in devmap on PREEMPT_RT On PREEMPT_RT kernels, the per-CPU xdp_dev_bulk_queue (bq) can be accessed concurrently by multiple preemptible tasks on the same CPU. The original code assumes bq_enqueue() and __dev_flush() run atomically with respect to each other on the same CPU, relying on local_bh_disable() to prevent preemption. However, on PREEMPT_RT, local_bh_disable() only calls migrate_disable() (when PREEMPT_R
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:790362617d51c00475fa6a01d06063591306ec3eaa91b712afab5eaba7b7a84f
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":["kernel/bpf/devmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6c10b019785dc282c5f45d21e4a3f468b8fd6476","status":"affected","version":"3253cb49cbad4772389d6ef55be75db1f97da910","versionType":"git"},{"lessThan":"ab1a56c9d99189aa5c6e03940d06e40ba6a28240","status":"affected","version":"3253cb49cbad4772389d6ef55be75db1f97da910","versionType":"git"},{"lessThan":"1872e75375c40add4a35990de3be77b5741c252c","status":"affected","version":"3253cb49cbad4772389d6ef55b…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b2b87715f258230194a154d76a0b809328431d5a3186e49a9d3be08d74190dcd · sha256:6fe15f9c206d9c85… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/bpf/devmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.17","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b2b87715f258230194a154d76a0b809328431d5a3186e49a9d3be08d74190dcd · sha256:6fe15f9c206d9c85… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/bpf/devmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6c10b019785dc282c5f45d21e4a3f468b8fd6476","status":"affected","version":"3253cb49cbad4772389d6ef55be75db1f97da910","versionType":"git"},{"lessThan":"ab1a56c9d99189aa5c6e03940d06e40ba6a28240","status":"affected","version":"3253cb49cbad4772389d6ef55be75db1f97da910","versionType":"git"},{"lessThan":"1872e75375c40add4a35990de3be77b5741c252c","status":"affected","version":"3253cb49cbad4772389d6ef55b…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b2b87715f258230194a154d76a0b809328431d5a3186e49a9d3be08d74190dcd · sha256:6fe15f9c206d9c85… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/bpf/devmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.17","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b2b87715f258230194a154d76a0b809328431d5a3186e49a9d3be08d74190dcd · sha256:6fe15f9c206d9c85… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:H/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:b2b87715f258230194a154d76a0b809328431d5a3186e49a9d3be08d74190dcd · sha256:6fe15f9c206d9c85… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/1872e75375c40add4a35990de3be77b5741c252c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b2b87715f258230194a154d76a0b809328431d5a3186e49a9d3be08d74190dcd · sha256:6fe15f9c206d9c85… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/6c10b019785dc282c5f45d21e4a3f468b8fd6476"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b2b87715f258230194a154d76a0b809328431d5a3186e49a9d3be08d74190dcd · sha256:6fe15f9c206d9c85… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/ab1a56c9d99189aa5c6e03940d06e40ba6a28240"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b2b87715f258230194a154d76a0b809328431d5a3186e49a9d3be08d74190dcd · sha256:6fe15f9c206d9c85… · /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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