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CVE-2026-23380

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix WARN_ON in tracing_buffers_mmap_close When a process forks, the child process copies the parent's VMAs but the user_mapped reference count is not incremented. As a result, when both the parent and child processes exit, tracing_buffers_mmap_close() is called twice. On the second call, user_mapped is already 0, causing the function to return -ENODEV and triggering a WARN_ON. Normally, this isn't an issue as the mem
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0b5f5cce181535fd9d18128663b926071e6ce3ba4f3429583b1f2e7d5a236c15
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":["include/linux/ring_buffer.h","kernel/trace/ring_buffer.c","kernel/trace/trace.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"91f3e8d84c89918769e71393f839c9fefadc2580","status":"affected","version":"cf9f0f7c4c5bb45e7bb270e48bab6f7837825a64","versionType":"git"},{"lessThan":"cdd96641b64297a2db42676f051362b76280a58b","status":"affected","version":"cf9f0f7c4c5bb45e7bb270e48bab6f7837825a64","versionType":"git"},{"lessThan":"b0f269ba6fefe9e3cb9feedcf78fcd0b633800c…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8ad3568ccf09ea15e8ff18284860a5b6fdb0e6a3c229ce48e5b2253a82193d62 · sha256:bd9bbcf92c70c9f8… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["include/linux/ring_buffer.h","kernel/trace/ring_buffer.c","kernel/trace/trace.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.10"},{"lessThan":"6.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.77","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.17","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffect…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8ad3568ccf09ea15e8ff18284860a5b6fdb0e6a3c229ce48e5b2253a82193d62 · sha256:bd9bbcf92c70c9f8… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/linux/ring_buffer.h","kernel/trace/ring_buffer.c","kernel/trace/trace.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"91f3e8d84c89918769e71393f839c9fefadc2580","status":"affected","version":"cf9f0f7c4c5bb45e7bb270e48bab6f7837825a64","versionType":"git"},{"lessThan":"cdd96641b64297a2db42676f051362b76280a58b","status":"affected","version":"cf9f0f7c4c5bb45e7bb270e48bab6f7837825a64","versionType":"git"},{"lessThan":"b0f269ba6fefe9e3cb9feedcf78fcd0b633800c…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8ad3568ccf09ea15e8ff18284860a5b6fdb0e6a3c229ce48e5b2253a82193d62 · sha256:bd9bbcf92c70c9f8… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["include/linux/ring_buffer.h","kernel/trace/ring_buffer.c","kernel/trace/trace.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.10"},{"lessThan":"6.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.77","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.17","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffect…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8ad3568ccf09ea15e8ff18284860a5b6fdb0e6a3c229ce48e5b2253a82193d62 · sha256:bd9bbcf92c70c9f8… · /containers/cna/affected/1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/91f3e8d84c89918769e71393f839c9fefadc2580"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8ad3568ccf09ea15e8ff18284860a5b6fdb0e6a3c229ce48e5b2253a82193d62 · sha256:bd9bbcf92c70c9f8… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/b0f269ba6fefe9e3cb9feedcf78fcd0b633800c0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8ad3568ccf09ea15e8ff18284860a5b6fdb0e6a3c229ce48e5b2253a82193d62 · sha256:bd9bbcf92c70c9f8… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/cdd96641b64297a2db42676f051362b76280a58b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8ad3568ccf09ea15e8ff18284860a5b6fdb0e6a3c229ce48e5b2253a82193d62 · sha256:bd9bbcf92c70c9f8… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/e39bb9e02b68942f8e9359d2a3efe7d37ae6be0e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8ad3568ccf09ea15e8ff18284860a5b6fdb0e6a3c229ce48e5b2253a82193d62 · sha256:bd9bbcf92c70c9f8… · /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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