CVE-2026-43302 (GCVE-0-2026-43302)
Vulnerability from cvelistv5 – Published: 2026-05-08 13:11 – Updated: 2026-05-11 22:21
VLAI
EPSS
VEX
Title
drm/v3d: Set DMA segment size to avoid debug warnings
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/v3d: Set DMA segment size to avoid debug warnings
When using V3D rendering with CONFIG_DMA_API_DEBUG enabled, the
kernel occasionally reports a segment size mismatch. This is because
'max_seg_size' is not set. The kernel defaults to 64K. setting
'max_seg_size' to the maximum will prevent 'debug_dma_map_sg()'
from complaining about the over-mapping of the V3D segment length.
DMA-API: v3d 1002000000.v3d: mapping sg segment longer than device
claims to support [len=8290304] [max=65536]
WARNING: CPU: 0 PID: 493 at kernel/dma/debug.c:1179 debug_dma_map_sg+0x330/0x388
CPU: 0 UID: 0 PID: 493 Comm: Xorg Not tainted 6.12.53-yocto-standard #1
Hardware name: Raspberry Pi 5 Model B Rev 1.0 (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : debug_dma_map_sg+0x330/0x388
lr : debug_dma_map_sg+0x330/0x388
sp : ffff8000829a3ac0
x29: ffff8000829a3ac0 x28: 0000000000000001 x27: ffff8000813fe000
x26: ffffc1ffc0000000 x25: ffff00010fdeb760 x24: 0000000000000000
x23: ffff8000816a9bf0 x22: 0000000000000001 x21: 0000000000000002
x20: 0000000000000002 x19: ffff00010185e810 x18: ffffffffffffffff
x17: 69766564206e6168 x16: 74207265676e6f6c x15: 20746e656d676573
x14: 20677320676e6970 x13: 5d34303334393134 x12: 0000000000000000
x11: 00000000000000c0 x10: 00000000000009c0 x9 : ffff8000800e0b7c
x8 : ffff00010a315ca0 x7 : ffff8000816a5110 x6 : 0000000000000001
x5 : 000000000000002b x4 : 0000000000000002 x3 : 0000000000000008
x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00010a315280
Call trace:
debug_dma_map_sg+0x330/0x388
__dma_map_sg_attrs+0xc0/0x278
dma_map_sgtable+0x30/0x58
drm_gem_shmem_get_pages_sgt+0xb4/0x140
v3d_bo_create_finish+0x28/0x130 [v3d]
v3d_create_bo_ioctl+0x54/0x180 [v3d]
drm_ioctl_kernel+0xc8/0x140
drm_ioctl+0x2d4/0x4d8
Severity
5.5 (Medium)
Assigner
References
7 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
57692c94dcbe99a1e0444409a3da13fb3443562c , < 14d0d6c8b4504a60cfeea74775ab2e0164019e65
(git)
Affected: 57692c94dcbe99a1e0444409a3da13fb3443562c , < 225023e3619b81af6d8d0e680503fc2d68633023 (git) Affected: 57692c94dcbe99a1e0444409a3da13fb3443562c , < 2663ef70c6123b2232190f917275e5c3175f97d0 (git) Affected: 57692c94dcbe99a1e0444409a3da13fb3443562c , < cf510785f74e74c54de40a43a955b7f844857487 (git) Affected: 57692c94dcbe99a1e0444409a3da13fb3443562c , < 0290934d30abe7c88e18140fd5184c3f386b1e44 (git) Affected: 57692c94dcbe99a1e0444409a3da13fb3443562c , < db15f469a88d3bbeeaa9f8c9f5e74d856ba5d7d2 (git) Affected: 57692c94dcbe99a1e0444409a3da13fb3443562c , < 9eb018828b1b30dfba689c060735c50fc5b9f704 (git) |
guessed | |
| Linux | Linux |
Affected:
4.18
Unaffected: 0 , < 4.18 (semver) Unaffected: 5.15.202 , ≤ 5.15.* (semver) Unaffected: 6.1.165 , ≤ 6.1.* (semver) Unaffected: 6.6.128 , ≤ 6.6.* (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.16 , ≤ 6.18.* (semver) Unaffected: 6.19.6 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
guessed |
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"descriptions": [
{
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/v3d: Set DMA segment size to avoid debug warnings\n\nWhen using V3D rendering with CONFIG_DMA_API_DEBUG enabled, the\nkernel occasionally reports a segment size mismatch. This is because\n\u0027max_seg_size\u0027 is not set. The kernel defaults to 64K. setting\n\u0027max_seg_size\u0027 to the maximum will prevent \u0027debug_dma_map_sg()\u0027\nfrom complaining about the over-mapping of the V3D segment length.\n\nDMA-API: v3d 1002000000.v3d: mapping sg segment longer than device\n claims to support [len=8290304] [max=65536]\nWARNING: CPU: 0 PID: 493 at kernel/dma/debug.c:1179 debug_dma_map_sg+0x330/0x388\nCPU: 0 UID: 0 PID: 493 Comm: Xorg Not tainted 6.12.53-yocto-standard #1\nHardware name: Raspberry Pi 5 Model B Rev 1.0 (DT)\npstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : debug_dma_map_sg+0x330/0x388\nlr : debug_dma_map_sg+0x330/0x388\nsp : ffff8000829a3ac0\nx29: ffff8000829a3ac0 x28: 0000000000000001 x27: ffff8000813fe000\nx26: ffffc1ffc0000000 x25: ffff00010fdeb760 x24: 0000000000000000\nx23: ffff8000816a9bf0 x22: 0000000000000001 x21: 0000000000000002\nx20: 0000000000000002 x19: ffff00010185e810 x18: ffffffffffffffff\nx17: 69766564206e6168 x16: 74207265676e6f6c x15: 20746e656d676573\nx14: 20677320676e6970 x13: 5d34303334393134 x12: 0000000000000000\nx11: 00000000000000c0 x10: 00000000000009c0 x9 : ffff8000800e0b7c\nx8 : ffff00010a315ca0 x7 : ffff8000816a5110 x6 : 0000000000000001\nx5 : 000000000000002b x4 : 0000000000000002 x3 : 0000000000000008\nx2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00010a315280\nCall trace:\n debug_dma_map_sg+0x330/0x388\n __dma_map_sg_attrs+0xc0/0x278\n dma_map_sgtable+0x30/0x58\n drm_gem_shmem_get_pages_sgt+0xb4/0x140\n v3d_bo_create_finish+0x28/0x130 [v3d]\n v3d_create_bo_ioctl+0x54/0x180 [v3d]\n drm_ioctl_kernel+0xc8/0x140\n drm_ioctl+0x2d4/0x4d8"
}
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"url": "https://git.kernel.org/stable/c/14d0d6c8b4504a60cfeea74775ab2e0164019e65"
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"url": "https://git.kernel.org/stable/c/2663ef70c6123b2232190f917275e5c3175f97d0"
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"url": "https://git.kernel.org/stable/c/cf510785f74e74c54de40a43a955b7f844857487"
},
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},
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},
{
"url": "https://git.kernel.org/stable/c/9eb018828b1b30dfba689c060735c50fc5b9f704"
}
],
"title": "drm/v3d: Set DMA segment size to avoid debug warnings",
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"datePublished": "2026-05-08T13:11:22.886Z",
"dateReserved": "2026-05-01T14:12:56.000Z",
"dateUpdated": "2026-05-11T22:21:55.721Z",
"state": "PUBLISHED"
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"vulnerability-lookup:meta": {
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"date": "2026-09-15",
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"percentile": "0.02325"
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The kernel defaults to 64K. setting\\n\u0027max_seg_size\u0027 to the maximum will prevent \u0027debug_dma_map_sg()\u0027\\nfrom complaining about the over-mapping of the V3D segment length.\\n\\nDMA-API: v3d 1002000000.v3d: mapping sg segment longer than device\\n claims to support [len=8290304] [max=65536]\\nWARNING: CPU: 0 PID: 493 at kernel/dma/debug.c:1179 debug_dma_map_sg+0x330/0x388\\nCPU: 0 UID: 0 PID: 493 Comm: Xorg Not tainted 6.12.53-yocto-standard #1\\nHardware name: Raspberry Pi 5 Model B Rev 1.0 (DT)\\npstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\npc : debug_dma_map_sg+0x330/0x388\\nlr : debug_dma_map_sg+0x330/0x388\\nsp : ffff8000829a3ac0\\nx29: ffff8000829a3ac0 x28: 0000000000000001 x27: ffff8000813fe000\\nx26: ffffc1ffc0000000 x25: ffff00010fdeb760 x24: 0000000000000000\\nx23: ffff8000816a9bf0 x22: 0000000000000001 x21: 0000000000000002\\nx20: 0000000000000002 x19: ffff00010185e810 x18: ffffffffffffffff\\nx17: 69766564206e6168 x16: 74207265676e6f6c x15: 20746e656d676573\\nx14: 20677320676e6970 x13: 5d34303334393134 x12: 0000000000000000\\nx11: 00000000000000c0 x10: 00000000000009c0 x9 : ffff8000800e0b7c\\nx8 : ffff00010a315ca0 x7 : ffff8000816a5110 x6 : 0000000000000001\\nx5 : 000000000000002b x4 : 0000000000000002 x3 : 0000000000000008\\nx2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00010a315280\\nCall trace:\\n debug_dma_map_sg+0x330/0x388\\n __dma_map_sg_attrs+0xc0/0x278\\n dma_map_sgtable+0x30/0x58\\n drm_gem_shmem_get_pages_sgt+0xb4/0x140\\n v3d_bo_create_finish+0x28/0x130 [v3d]\\n v3d_create_bo_ioctl+0x54/0x180 [v3d]\\n drm_ioctl_kernel+0xc8/0x140\\n drm_ioctl+0x2d4/0x4d8\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/gpu/drm/v3d/v3d_drv.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"57692c94dcbe99a1e0444409a3da13fb3443562c\",\"lessThan\":\"14d0d6c8b4504a60cfeea74775ab2e0164019e65\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"57692c94dcbe99a1e0444409a3da13fb3443562c\",\"lessThan\":\"225023e3619b81af6d8d0e680503fc2d68633023\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"57692c94dcbe99a1e0444409a3da13fb3443562c\",\"lessThan\":\"2663ef70c6123b2232190f917275e5c3175f97d0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"57692c94dcbe99a1e0444409a3da13fb3443562c\",\"lessThan\":\"cf510785f74e74c54de40a43a955b7f844857487\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"57692c94dcbe99a1e0444409a3da13fb3443562c\",\"lessThan\":\"0290934d30abe7c88e18140fd5184c3f386b1e44\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"57692c94dcbe99a1e0444409a3da13fb3443562c\",\"lessThan\":\"db15f469a88d3bbeeaa9f8c9f5e74d856ba5d7d2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"57692c94dcbe99a1e0444409a3da13fb3443562c\",\"lessThan\":\"9eb018828b1b30dfba689c060735c50fc5b9f704\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/gpu/drm/v3d/v3d_drv.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.18\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.18\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.202\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.165\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.128\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.75\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.16\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19.6\",\"lessThanOrEqual\":\"6.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-131\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.18\",\"versionEndExcluding\":\"5.15.202\",\"matchCriteriaId\":\"ECCCB6D8-FB4F-4A5D-BDE0-C63C378DE186\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.165\",\"matchCriteriaId\":\"797C7F46-D0BE-4FB8-A502-C5EF8E6B6654\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.128\",\"matchCriteriaId\":\"851E9353-6C09-4CC9-877E-E09DB164A3C2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.75\",\"matchCriteriaId\":\"BCE16369-98ED-41CF-8995-DFDC10B288D2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.16\",\"matchCriteriaId\":\"B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.19\",\"versionEndExcluding\":\"6.19.6\",\"matchCriteriaId\":\"373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0290934d30abe7c88e18140fd5184c3f386b1e44\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/14d0d6c8b4504a60cfeea74775ab2e0164019e65\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/225023e3619b81af6d8d0e680503fc2d68633023\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2663ef70c6123b2232190f917275e5c3175f97d0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9eb018828b1b30dfba689c060735c50fc5b9f704\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cf510785f74e74c54de40a43a955b7f844857487\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/db15f469a88d3bbeeaa9f8c9f5e74d856ba5d7d2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-28T11:36:25+00:00",
"cve": "CVE-2026-43302",
"id": "CVE-2026-43302",
"initial_release_date": "2026-05-08T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: drm/v3d: Set DMA segment size to avoid debug warnings",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43302.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-11T01:18:55Z",
"cve": "CVE-2026-43302",
"id": "CVE-2026-43302",
"initial_release_date": "2026-05-13T03:35:41Z",
"product_status:first_fixed": "2",
"product_status:known_affected": "669",
"product_status:known_not_affected": "51",
"product_status:recommended": "250",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-43302",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-43302.json",
"version": "8"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- 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.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- 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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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