{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98180", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.322Z", "datePublished": "2026-10-06T08:44:23.327Z", "dateUpdated": "2026-10-06T08:44:23.327Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-06T08:44:23.327Z"}, "descriptions": [{"lang": "en", "value": "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/"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/msm/msm_gem.h", "drivers/gpu/drm/msm/msm_gem_vma.c", "drivers/gpu/drm/msm/msm_ringbuffer.c", "drivers/gpu/drm/msm/msm_ringbuffer.h"], "versions": [{"version": "1d8a5ca436ee4a28eec14cb813f790f7cdeeee19", "lessThan": "d81bf4581903b0cba0698cd4d1c07fc6be21754a", "status": "affected", "versionType": "git"}, {"version": "1d8a5ca436ee4a28eec14cb813f790f7cdeeee19", "lessThan": "713abac5c04ccbae67f9ac68c3921845535388e7", "status": "affected", "versionType": "git"}, {"version": "1d8a5ca436ee4a28eec14cb813f790f7cdeeee19", "lessThan": "01c8d1f385f788f1bbbbb7687c4386d614281218", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/msm/msm_gem.h", "drivers/gpu/drm/msm/msm_gem_vma.c", "drivers/gpu/drm/msm/msm_ringbuffer.c", "drivers/gpu/drm/msm/msm_ringbuffer.h"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.54", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.8", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc4", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"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-rc4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d81bf4581903b0cba0698cd4d1c07fc6be21754a"}, {"url": "https://git.kernel.org/stable/c/713abac5c04ccbae67f9ac68c3921845535388e7"}, {"url": "https://git.kernel.org/stable/c/01c8d1f385f788f1bbbbb7687c4386d614281218"}], "title": "drm/msm: RCU-free the scheduler-containing ring and VM objects", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/msm/msm_gem.h", "drivers/gpu/drm/msm/msm_gem_vma.c", "drivers/gpu/drm/msm/msm_ringbuffer.c", "drivers/gpu/drm/msm/msm_ringbuffer.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d81bf4581903b0cba0698cd4d1c07fc6be21754a", "status": "affected", "version": "1d8a5ca436ee4a28eec14cb813f790f7cdeeee19", "versionType": "git"}, {"lessThan": "713abac5c04ccbae67f9ac68c3921845535388e7", "status": "affected", "version": "1d8a5ca436ee4a28eec14cb813f790f7cdeeee19", "versionType": "git"}, {"lessThan": "01c8d1f385f788f1bbbbb7687c4386d614281218", "status": "affected", "version": "1d8a5ca436ee4a28eec14cb813f790f7cdeeee19", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/msm/msm_gem.h", "drivers/gpu/drm/msm/msm_gem_vma.c", "drivers/gpu/drm/msm/msm_ringbuffer.c", "drivers/gpu/drm/msm/msm_ringbuffer.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.15"}, {"lessThan": "5.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.54", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc4", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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/"}], "id": "CVE-2026-98180", "lastModified": "2026-10-06T09:18:01.617", "metrics": {}, "published": "2026-10-06T09:18:01.617", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/01c8d1f385f788f1bbbbb7687c4386d614281218"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/713abac5c04ccbae67f9ac68c3921845535388e7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d81bf4581903b0cba0698cd4d1c07fc6be21754a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}