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THREAT OPS › Threat News › [NVD] CVE-2026-63799 (HIGH 7.8) — In the Linux kernel, the following vulnerability has been resolved: sched/mmcid: Fix OOB clear_bit when CID is MM_CID_UNSET in fixup path In mm_cid_fixup_cpus_to_tasks(), when rq->curr has the target mm and mm_cid.active is set, the CID is checked with cid_in_transit() before s

[NVD] CVE-2026-63799 (HIGH 7.8) — In the Linux kernel, the following vulnerability has been resolved: sched/mmcid: Fix OOB clear_bit when CID is MM_CID_UNSET in fixup path In mm_cid_fixup_cpus_to_tasks(), when rq->curr has the target mm and mm_cid.active is set, the CID is checked with cid_in_transit() before s

mednvdPublished 2026-07-19

CVE-2026-63799 CVSS: 7.8 HIGH Published: 2026-07-19T12:16:52.433

In the Linux kernel, the following vulnerability has been resolved:

sched/mmcid: Fix OOB clear_bit when CID is MM_CID_UNSET in fixup path

In mm_cid_fixup_cpus_to_tasks(), when rq->curr has the target mm and mm_cid.active is set, the CID is checked with cid_in_transit() before setting the transition bit. In per-CPU mode a newly fo

Indicators of compromise

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-63799