CVE-2024-41092 (GCVE-0-2024-41092)

Vulnerability from cvelistv5 – Published: 2024-07-29 15:48 – Updated: 2025-11-03 22:00
VLAI?
Title
drm/i915/gt: Fix potential UAF by revoke of fence registers
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/i915/gt: Fix potential UAF by revoke of fence registers CI has been sporadically reporting the following issue triggered by igt@i915_selftest@live@hangcheck on ADL-P and similar machines: <6> [414.049203] i915: Running intel_hangcheck_live_selftests/igt_reset_evict_fence ... <6> [414.068804] i915 0000:00:02.0: [drm] GT0: GUC: submission enabled <6> [414.068812] i915 0000:00:02.0: [drm] GT0: GUC: SLPC enabled <3> [414.070354] Unable to pin Y-tiled fence; err:-4 <3> [414.071282] i915_vma_revoke_fence:301 GEM_BUG_ON(!i915_active_is_idle(&fence->active)) ... <4>[ 609.603992] ------------[ cut here ]------------ <2>[ 609.603995] kernel BUG at drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c:301! <4>[ 609.604003] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI <4>[ 609.604006] CPU: 0 PID: 268 Comm: kworker/u64:3 Tainted: G U W 6.9.0-CI_DRM_14785-g1ba62f8cea9c+ #1 <4>[ 609.604008] Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-P DDR4 RVP, BIOS RPLPFWI1.R00.4035.A00.2301200723 01/20/2023 <4>[ 609.604010] Workqueue: i915 __i915_gem_free_work [i915] <4>[ 609.604149] RIP: 0010:i915_vma_revoke_fence+0x187/0x1f0 [i915] ... <4>[ 609.604271] Call Trace: <4>[ 609.604273] <TASK> ... <4>[ 609.604716] __i915_vma_evict+0x2e9/0x550 [i915] <4>[ 609.604852] __i915_vma_unbind+0x7c/0x160 [i915] <4>[ 609.604977] force_unbind+0x24/0xa0 [i915] <4>[ 609.605098] i915_vma_destroy+0x2f/0xa0 [i915] <4>[ 609.605210] __i915_gem_object_pages_fini+0x51/0x2f0 [i915] <4>[ 609.605330] __i915_gem_free_objects.isra.0+0x6a/0xc0 [i915] <4>[ 609.605440] process_scheduled_works+0x351/0x690 ... In the past, there were similar failures reported by CI from other IGT tests, observed on other platforms. Before commit 63baf4f3d587 ("drm/i915/gt: Only wait for GPU activity before unbinding a GGTT fence"), i915_vma_revoke_fence() was waiting for idleness of vma->active via fence_update(). That commit introduced vma->fence->active in order for the fence_update() to be able to wait selectively on that one instead of vma->active since only idleness of fence registers was needed. But then, another commit 0d86ee35097a ("drm/i915/gt: Make fence revocation unequivocal") replaced the call to fence_update() in i915_vma_revoke_fence() with only fence_write(), and also added that GEM_BUG_ON(!i915_active_is_idle(&fence->active)) in front. No justification was provided on why we might then expect idleness of vma->fence->active without first waiting on it. The issue can be potentially caused by a race among revocation of fence registers on one side and sequential execution of signal callbacks invoked on completion of a request that was using them on the other, still processed in parallel to revocation of those fence registers. Fix it by waiting for idleness of vma->fence->active in i915_vma_revoke_fence(). (cherry picked from commit 24bb052d3dd499c5956abad5f7d8e4fd07da7fb1)
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1 , < f771b91f21c46ad1217328d05e72a2c7e3add535 (git)
Affected: 0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1 , < 29c0fdf49078ab161570d3d1c6e13d66f182717d (git)
Affected: 0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1 , < ca0fabd365a27a94a36e68a7a02df8ff3c13dac6 (git)
Affected: 0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1 , < 06dec31a0a5112a91f49085e8a8fa1a82296d5c7 (git)
Affected: 0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1 , < 414f4a31f7a811008fd9a33b06216b060bad18fc (git)
Affected: 0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1 , < 996c3412a06578e9d779a16b9e79ace18125ab50 (git)
Create a notification for this product.
    Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 5.10.221 , ≤ 5.10.* (semver)
Unaffected: 5.15.162 , ≤ 5.15.* (semver)
Unaffected: 6.1.97 , ≤ 6.1.* (semver)
Unaffected: 6.6.37 , ≤ 6.6.* (semver)
Unaffected: 6.9.8 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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\"29c0fdf49078ab161570d3d1c6e13d66f182717d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1\", \"lessThan\": \"ca0fabd365a27a94a36e68a7a02df8ff3c13dac6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1\", \"lessThan\": \"06dec31a0a5112a91f49085e8a8fa1a82296d5c7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1\", \"lessThan\": \"414f4a31f7a811008fd9a33b06216b060bad18fc\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0d86ee35097ae0f1c2c50f2b8035ef480e25e4f1\", \"lessThan\": \"996c3412a06578e9d779a16b9e79ace18125ab50\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.8\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.8\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.221\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.162\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.97\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.37\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/f771b91f21c46ad1217328d05e72a2c7e3add535\"}, {\"url\": \"https://git.kernel.org/stable/c/29c0fdf49078ab161570d3d1c6e13d66f182717d\"}, {\"url\": \"https://git.kernel.org/stable/c/ca0fabd365a27a94a36e68a7a02df8ff3c13dac6\"}, {\"url\": \"https://git.kernel.org/stable/c/06dec31a0a5112a91f49085e8a8fa1a82296d5c7\"}, {\"url\": \"https://git.kernel.org/stable/c/414f4a31f7a811008fd9a33b06216b060bad18fc\"}, {\"url\": \"https://git.kernel.org/stable/c/996c3412a06578e9d779a16b9e79ace18125ab50\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"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\u003c6\u003e [414.049203] i915: Running intel_hangcheck_live_selftests/igt_reset_evict_fence\\n...\\n\u003c6\u003e [414.068804] i915 0000:00:02.0: [drm] GT0: GUC: submission enabled\\n\u003c6\u003e [414.068812] i915 0000:00:02.0: [drm] GT0: GUC: SLPC enabled\\n\u003c3\u003e [414.070354] Unable to pin Y-tiled fence; err:-4\\n\u003c3\u003e [414.071282] i915_vma_revoke_fence:301 GEM_BUG_ON(!i915_active_is_idle(\u0026fence-\u003eactive))\\n...\\n\u003c4\u003e[  609.603992] ------------[ cut here ]------------\\n\u003c2\u003e[  609.603995] kernel BUG at drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c:301!\\n\u003c4\u003e[  609.604003] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\\n\u003c4\u003e[  609.604006] CPU: 0 PID: 268 Comm: kworker/u64:3 Tainted: G     U  W          6.9.0-CI_DRM_14785-g1ba62f8cea9c+ #1\\n\u003c4\u003e[  609.604008] Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-P DDR4 RVP, BIOS RPLPFWI1.R00.4035.A00.2301200723 01/20/2023\\n\u003c4\u003e[  609.604010] Workqueue: i915 __i915_gem_free_work [i915]\\n\u003c4\u003e[  609.604149] RIP: 0010:i915_vma_revoke_fence+0x187/0x1f0 [i915]\\n...\\n\u003c4\u003e[  609.604271] Call Trace:\\n\u003c4\u003e[  609.604273]  \u003cTASK\u003e\\n...\\n\u003c4\u003e[  609.604716]  __i915_vma_evict+0x2e9/0x550 [i915]\\n\u003c4\u003e[  609.604852]  __i915_vma_unbind+0x7c/0x160 [i915]\\n\u003c4\u003e[  609.604977]  force_unbind+0x24/0xa0 [i915]\\n\u003c4\u003e[  609.605098]  i915_vma_destroy+0x2f/0xa0 [i915]\\n\u003c4\u003e[  609.605210]  __i915_gem_object_pages_fini+0x51/0x2f0 [i915]\\n\u003c4\u003e[  609.605330]  __i915_gem_free_objects.isra.0+0x6a/0xc0 [i915]\\n\u003c4\u003e[  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-\u003eactive via fence_update().   That commit introduced\\nvma-\u003efence-\u003eactive in order for the fence_update() to be able to wait\\nselectively on that one instead of vma-\u003eactive 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(\u0026fence-\u003eactive)) in front.\\nNo justification was provided on why we might then expect idleness of\\nvma-\u003efence-\u003eactive 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-\u003efence-\u003eactive in i915_vma_revoke_fence().\\n\\n(cherry picked from commit 24bb052d3dd499c5956abad5f7d8e4fd07da7fb1)\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.221\", \"versionStartIncluding\": \"5.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.162\", \"versionStartIncluding\": \"5.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.97\", \"versionStartIncluding\": \"5.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.37\", \"versionStartIncluding\": \"5.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.8\", \"versionStartIncluding\": \"5.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"5.8\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:21:54.366Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-41092\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T09:21:54.366Z\", \"dateReserved\": \"2024-07-12T12:17:45.636Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-07-29T15:48:05.853Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.