{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2024-41092", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-41092", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2024-07-29T15:48:05.853Z", "updatedAt": "2026-08-05T11:35:20.738Z", "importedAt": "2026-10-24T01:57:16.009Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "drm/i915/gt: Fix potential UAF by revoke of fence registers", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/gt: Fix potential UAF by revoke of fence registers\n\nCI has been sporadically reporting the following issue triggered by\nigt@i915_selftest@live@hangcheck on ADL-P and similar machines:\n\n<6> [414.049203] i915: Running intel_hangcheck_live_selftests/igt_reset_evict_fence\n...\n<6> [414.068804] i915 0000:00:02.0: [drm] GT0: GUC: submission enabled\n<6> [414.068812] i915 0000:00:02.0: [drm] GT0: GUC: SLPC enabled\n<3> [414.070354] Unable to pin Y-tiled fence; err:-4\n<3> [414.071282] i915_vma_revoke_fence:301 GEM_BUG_ON(!i915_active_is_idle(&fence->active))\n...\n<4>[ 609.603992] ------------[ cut here ]------------\n<2>[ 609.603995] kernel BUG at drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c:301!\n<4>[ 609.604003] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n<4>[ 609.604006] CPU: 0 PID: 268 Comm: kworker/u64:3 Tainted: G U W 6.9.0-CI_DRM_14785-g1ba62f8cea9c+ #1\n<4>[ 609.604008] Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-P DDR4 RVP, BIOS RPLPFWI1.R00.4035.A00.2301200723 01/20/2023\n<4>[ 609.604010] Workqueue: i915 __i915_gem_free_work [i915]\n<4>[ 609.604149] RIP: 0010:i915_vma_revoke_fence+0x187/0x1f0 [i915]\n...\n<4>[ 609.604271] Call Trace:\n<4>[ 609.604273] \n...\n<4>[ 609.604716] __i915_vma_evict+0x2e9/0x550 [i915]\n<4>[ 609.604852] __i915_vma_unbind+0x7c/0x160 [i915]\n<4>[ 609.604977] force_unbind+0x24/0xa0 [i915]\n<4>[ 609.605098] i915_vma_destroy+0x2f/0xa0 [i915]\n<4>[ 609.605210] __i915_gem_object_pages_fini+0x51/0x2f0 [i915]\n<4>[ 609.605330] __i915_gem_free_objects.isra.0+0x6a/0xc0 [i915]\n<4>[ 609.605440] process_scheduled_works+0x351/0x690\n...\n\nIn the past, there were similar failures reported by CI from other IGT\ntests, observed on other platforms.\n\nBefore commit 63baf4f3d587 (\"drm/i915/gt: Only wait for GPU activity\nbefore unbinding a GGTT fence\"), i915_vma_revoke_fence() was waiting for\nidleness of vma->active via fence_update(). That commit introduced\nvma->fence->active in order for the fence_update() to be able to wait\nselectively on that one instead of vma->active since only idleness of\nfence registers was needed. But then, another commit 0d86ee35097a\n(\"drm/i915/gt: Make fence revocation unequivocal\") replaced the call to\nfence_update() in i915_vma_revoke_fence() with only fence_write(), and\nalso added that GEM_BUG_ON(!i915_active_is_idle(&fence->active)) in front.\nNo justification was provided on why we might then expect idleness of\nvma->fence->active without first waiting on it.\n\nThe issue can be potentially caused by a race among revocation of fence\nregisters on one side and sequential execution of signal callbacks invoked\non completion of a request that was using them on the other, still\nprocessed in parallel to revocation of those fence registers. Fix it by\nwaiting for idleness of vma->fence->active in i915_vma_revoke_fence().\n\n(cherry picked from commit 24bb052d3dd499c5956abad5f7d8e4fd07da7fb1)", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1", "status": "affected", "versionType": "git", "lessThan": "f771b91f21c46ad1217328d05e72a2c7e3add535" }, { "version": "0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1", "status": "affected", "versionType": "git", "lessThan": "29c0fdf49078ab161570d3d1c6e13d66f182717d" }, { "version": "0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1", "status": "affected", "versionType": "git", "lessThan": "ca0fabd365a27a94a36e68a7a02df8ff3c13dac6" }, { "version": "0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1", "status": "affected", "versionType": "git", "lessThan": "06dec31a0a5112a91f49085e8a8fa1a82296d5c7" }, { "version": "0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1", "status": "affected", "versionType": "git", "lessThan": "414f4a31f7a811008fd9a33b06216b060bad18fc" }, { "version": "0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1", "status": "affected", "versionType": "git", "lessThan": "996c3412a06578e9d779a16b9e79ace18125ab50" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.8", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.8" }, { "version": "5.10.221", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.162", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.97", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.37", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.9.8", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.9.*" }, { "version": "6.10", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }