{"id":"CVE-2026-98180","aliases":[],"cve":{"records":[{"id":"CVE-2026-98180","source":"Linux","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-25T10:25:14.322Z","published":"2026-10-06T08:44:23.327Z","modified":"2026-11-10T18:15:11.955Z"}],"publishers":[{"name":"Linux","role":"CNA","organizationId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","modified":"2026-11-10T18:15:11.955Z"}],"references":[{"url":"https://git.kernel.org/stable/c/0ba7c696eea3af41ac4712197566a7b94eedc637","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/d81bf4581903b0cba0698cd4d1c07fc6be21754a","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/713abac5c04ccbae67f9ac68c3921845535388e7","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/01c8d1f385f788f1bbbbb7687c4386d614281218","tags":[],"source":"Linux"}],"weaknesses":[],"applicability":[{"source":"Linux","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.12.117"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.3"}]}]}]}],"prioritization":[]},"title":"drm/msm: RCU-free the scheduler-containing ring and VM objects","titleSource":"Linux","descriptionSource":"Linux","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm: RCU-free the scheduler-containing ring and VM objects\n\nBoth struct msm_ringbuffer and struct msm_gem_vm embed a struct\ndrm_gpu_scheduler.  msm_ringbuffer_destroy() and the VM free callback\nmsm_gem_vm_free() call drm_sched_fini() on the embedded scheduler and then\nfree the containing object with plain kfree().\n\ndrm_sched_fence_get_timeline_name() returns fence->sched->name, and the\nscheduler fence keeps a .release callback so it is not ops-detached on\nsignalling.  A finished fence exported to userspace (the submit out-fence, or\na VM_BIND fence, via sync_file / drm_syncobj) keeps pointing at the embedded\nscheduler after the ring/VM is freed, so a later get_timeline_name() --\nreachable unprivileged through SYNC_IOC_FILE_INFO -- dereferences freed slab\nmemory (KASAN slab-use-after-free read).\n\nPer the dma-fence lifetime contract the exporter must keep the data backing a\nsignalled fence alive for an RCU grace period.  Free the scheduler-containing\nobjects with kfree_rcu() instead of kfree().\n\nPatchwork: https://patchwork.freedesktop.org/patch/750234/","score":7.1,"severity":"high","published":"2026-10-06T08:44:23.327Z","modified":"2026-11-10T18:15:11.955Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"1d8a5ca436ee4a28eec14cb813f790f7cdeeee19","status":"affected","lessThan":"0ba7c696eea3af41ac4712197566a7b94eedc637","versionType":"git"},{"version":"1d8a5ca436ee4a28eec14cb813f790f7cdeeee19","status":"affected","lessThan":"d81bf4581903b0cba0698cd4d1c07fc6be21754a","versionType":"git"},{"version":"1d8a5ca436ee4a28eec14cb813f790f7cdeeee19","status":"affected","lessThan":"713abac5c04ccbae67f9ac68c3921845535388e7","versionType":"git"},{"version":"1d8a5ca436ee4a28eec14cb813f790f7cdeeee19","status":"affected","lessThan":"01c8d1f385f788f1bbbbb7687c4386d614281218","versionType":"git"}],"defaultStatus":"unaffected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-98180"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"6.12.117","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"defaultStatus":"affected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-98180"}],"remediation":[],"references":["https://git.kernel.org/stable/c/0ba7c696eea3af41ac4712197566a7b94eedc637","https://git.kernel.org/stable/c/d81bf4581903b0cba0698cd4d1c07fc6be21754a","https://git.kernel.org/stable/c/713abac5c04ccbae67f9ac68c3921845535388e7","https://git.kernel.org/stable/c/01c8d1f385f788f1bbbbb7687c4386d614281218"],"sources":[{"name":"CVE","id":"CVE-2026-98180","modified":"2026-11-10T18:15:11.955Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-98180"}],"assessments":[{"source":"Linux","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","score":7.1}],"sourceAffected":[],"observedAt":"2026-11-10T18:24:58.629Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T22:40:32.870Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":null}