{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98512","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.354Z","datePublished":"2026-10-18T15:17:27.102Z","dateUpdated":"2026-10-19T09:20:52.234Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-19T09:20:52.234Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau: RCU-free the scheduler-containing nouveau_sched\n\nstruct nouveau_sched embeds a struct drm_gpu_scheduler (base).\nnouveau_sched_destroy() calls nouveau_sched_fini() (which does\ndrm_sched_fini(&sched->base)) and then frees the object with plain\nkfree(sched).\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 via drm_syncobj /\nsync_file therefore keeps pointing at &sched->base after nouveau_sched_destroy(),\nand a later get_timeline_name() -- reachable unprivileged through\nSYNC_IOC_FILE_INFO -- dereferences freed memory (KASAN slab-use-after-free\nread).\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\nobject with kfree_rcu() instead of kfree()."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/nouveau/nouveau_sched.c","drivers/gpu/drm/nouveau/nouveau_sched.h"],"versions":[{"version":"5f03a507b29e44a848f315c7240c19894dd8be4f","lessThan":"40edf5eefc3fd94592a91d6eb074d4fc6f606c75","status":"affected","versionType":"git"},{"version":"5f03a507b29e44a848f315c7240c19894dd8be4f","lessThan":"35151e9a8274174ccbb92e3b3ba7dc7a008dcada","status":"affected","versionType":"git"},{"version":"5f03a507b29e44a848f315c7240c19894dd8be4f","lessThan":"cd6e11b6ebe04a0a1f1435df561acada9eadc563","status":"affected","versionType":"git"},{"version":"5f03a507b29e44a848f315c7240c19894dd8be4f","lessThan":"f7eae6d8d768fabd6b59779ca7da79e02c74e113","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/nouveau/nouveau_sched.c","drivers/gpu/drm/nouveau/nouveau_sched.h"],"versions":[{"version":"6.8","status":"affected"},{"version":"0","lessThan":"6.8","status":"unaffected","versionType":"semver"},{"version":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.55","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.9","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","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":"6.8","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.18.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.2.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/40edf5eefc3fd94592a91d6eb074d4fc6f606c75"},{"url":"https://git.kernel.org/stable/c/35151e9a8274174ccbb92e3b3ba7dc7a008dcada"},{"url":"https://git.kernel.org/stable/c/cd6e11b6ebe04a0a1f1435df561acada9eadc563"},{"url":"https://git.kernel.org/stable/c/f7eae6d8d768fabd6b59779ca7da79e02c74e113"}],"title":"drm/nouveau: RCU-free the scheduler-containing nouveau_sched","x_generator":{"engine":"bippy-1.2.0"}}}}