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CVE-2026-23225

In the Linux kernel, the following vulnerability has been resolved: sched/mmcid: Don't assume CID is CPU owned on mode switch Shinichiro reported a KASAN UAF, which is actually an out of bounds access in the MMCID management code. CPU0 CPU1 T1 runs in userspace T0: fork(T4) -> Switch to per CPU CID mode fixup() set MM_CID_TRANSIT on T1/CPU1 T4 exit() T3 exit() T2 exit() T1 exit() switch to per task mode ---> Out of bounds access. As T1 has n
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:716bad43ca65f66988b725222b5ddb7c47cc29f238eb6c7b3f193f3bbb1d81cc
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/sched/core.c","kernel/sched/sched.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"81f29975631db8a78651b3140ecd0f88ffafc476","status":"affected","version":"007d84287c7466ca68a5809b616338214dc5b77b","versionType":"git"},{"lessThan":"1e83ccd5921a610ef409a7d4e56db27822b4ea39","status":"affected","version":"007d84287c7466ca68a5809b616338214dc5b77b","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c58903562cbe1e4960bbcd606889277339d92762b56d50d9a3f9f7c1d6ec480e · sha256:6538f85f0c794042… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/sched/core.c","kernel/sched/sched.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.1","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c58903562cbe1e4960bbcd606889277339d92762b56d50d9a3f9f7c1d6ec480e · sha256:6538f85f0c794042… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/sched/core.c","kernel/sched/sched.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"81f29975631db8a78651b3140ecd0f88ffafc476","status":"affected","version":"007d84287c7466ca68a5809b616338214dc5b77b","versionType":"git"},{"lessThan":"1e83ccd5921a610ef409a7d4e56db27822b4ea39","status":"affected","version":"007d84287c7466ca68a5809b616338214dc5b77b","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c58903562cbe1e4960bbcd606889277339d92762b56d50d9a3f9f7c1d6ec480e · sha256:6538f85f0c794042… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/sched/core.c","kernel/sched/sched.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.1","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c58903562cbe1e4960bbcd606889277339d92762b56d50d9a3f9f7c1d6ec480e · sha256:6538f85f0c794042… · /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:c58903562cbe1e4960bbcd606889277339d92762b56d50d9a3f9f7c1d6ec480e · sha256:6538f85f0c794042… · /containers/cna/metrics/0/cvssV3_1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/1e83ccd5921a610ef409a7d4e56db27822b4ea39"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c58903562cbe1e4960bbcd606889277339d92762b56d50d9a3f9f7c1d6ec480e · sha256:6538f85f0c794042… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/81f29975631db8a78651b3140ecd0f88ffafc476"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c58903562cbe1e4960bbcd606889277339d92762b56d50d9a3f9f7c1d6ec480e · sha256:6538f85f0c794042… · /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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