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CVE-2026-64211

In the Linux kernel, the following vulnerability has been resolved: srcu: Don't queue workqueue handlers to never-online CPUs While an srcu_struct structure is in the midst of switching from CPU-0 to all-CPUs state, it can attempt to invoke callbacks for CPUs that have never been online. Worse yet, it can attempt in invoke callbacks for CPUs that never will be online, even including imaginary CPUs not in cpu_possible_mask. This can cause hangs on s390, which is not set up to deal with workqu
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ae61811d9e6b106a05875431c89a000e2317c91c397c7821cf511ceb50778bf4
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":["kernel/rcu/srcutree.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.0"},{"lessThan":"7.0","status":"unaffected","version":"0","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:a8e32d0c40fe85463eb1e781f35203af5db7232555ba11429c145c0ff85a8119 · sha256:ec623a705b75e162… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/rcu/srcutree.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a4153538fcd2361c4e0039eb103265492d26044e","status":"affected","version":"61bbcfb50514a8a94e035a7349697a3790ab4783","versionType":"git"},{"lessThan":"593889c401426004bd0ea0f6d4fcece728b03420","status":"affected","version":"61bbcfb50514a8a94e035a7349697a3790ab4783","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a8e32d0c40fe85463eb1e781f35203af5db7232555ba11429c145c0ff85a8119 · sha256:ec623a705b75e162… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/rcu/srcutree.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.0"},{"lessThan":"7.0","status":"unaffected","version":"0","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:a8e32d0c40fe85463eb1e781f35203af5db7232555ba11429c145c0ff85a8119 · sha256:ec623a705b75e162… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/rcu/srcutree.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a4153538fcd2361c4e0039eb103265492d26044e","status":"affected","version":"61bbcfb50514a8a94e035a7349697a3790ab4783","versionType":"git"},{"lessThan":"593889c401426004bd0ea0f6d4fcece728b03420","status":"affected","version":"61bbcfb50514a8a94e035a7349697a3790ab4783","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a8e32d0c40fe85463eb1e781f35203af5db7232555ba11429c145c0ff85a8119 · sha256:ec623a705b75e162… · /containers/cna/affected/0

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/593889c401426004bd0ea0f6d4fcece728b03420"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a8e32d0c40fe85463eb1e781f35203af5db7232555ba11429c145c0ff85a8119 · sha256:ec623a705b75e162… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/a4153538fcd2361c4e0039eb103265492d26044e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a8e32d0c40fe85463eb1e781f35203af5db7232555ba11429c145c0ff85a8119 · sha256:ec623a705b75e162… · /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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