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CVE-2026-23433

In the Linux kernel, the following vulnerability has been resolved: arm_mpam: Fix null pointer dereference when restoring bandwidth counters When an MSC supporting memory bandwidth monitoring is brought offline and then online, mpam_restore_mbwu_state() calls __ris_msmon_read() via ipi to restore the configuration of the bandwidth counters. It doesn't care about the value read, mbwu_arg.val, and doesn't set it leading to a null pointer dereference when __ris_msmon_read() adds to it. This resul
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:64130f9ca9c4a73a9b7ae3a407999b0a3b36f6744003fcd4afc67712ad3b5ba7
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/resctrl/mpam_devices.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ac3e12bc195786d3d44d730b5b2259fd36191848","status":"affected","version":"41e8a14950e1732af51cfec8fa09f8ded02a5ca9","versionType":"git"},{"lessThan":"4ad79c874e53ebb7fe3b8ae7ac6c858a2121f415","status":"affected","version":"41e8a14950e1732af51cfec8fa09f8ded02a5ca9","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77edd02067755508d6e213c026bfafbf0ae831f3a88fb0dea9752dcdc2ea5d8b · sha256:e7505d22b50428c7… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/resctrl/mpam_devices.c"],"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":"6.19.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77edd02067755508d6e213c026bfafbf0ae831f3a88fb0dea9752dcdc2ea5d8b · sha256:e7505d22b50428c7… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/resctrl/mpam_devices.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ac3e12bc195786d3d44d730b5b2259fd36191848","status":"affected","version":"41e8a14950e1732af51cfec8fa09f8ded02a5ca9","versionType":"git"},{"lessThan":"4ad79c874e53ebb7fe3b8ae7ac6c858a2121f415","status":"affected","version":"41e8a14950e1732af51cfec8fa09f8ded02a5ca9","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77edd02067755508d6e213c026bfafbf0ae831f3a88fb0dea9752dcdc2ea5d8b · sha256:e7505d22b50428c7… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/resctrl/mpam_devices.c"],"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":"6.19.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77edd02067755508d6e213c026bfafbf0ae831f3a88fb0dea9752dcdc2ea5d8b · sha256:e7505d22b50428c7… · /containers/cna/affected/1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/4ad79c874e53ebb7fe3b8ae7ac6c858a2121f415"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77edd02067755508d6e213c026bfafbf0ae831f3a88fb0dea9752dcdc2ea5d8b · sha256:e7505d22b50428c7… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/ac3e12bc195786d3d44d730b5b2259fd36191848"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77edd02067755508d6e213c026bfafbf0ae831f3a88fb0dea9752dcdc2ea5d8b · sha256:e7505d22b50428c7… · /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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