FKIE_CVE-2026-46278
Vulnerability from fkie_nvd - Published: 2026-06-08 17:16 - Updated: 2026-07-23 08:10
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/imagination: Fix segfault when updating ftrace mask
Fix invalid data access by passing right data for debugfs entry.
[ 171.549793] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
[ 171.559248] Mem abort info:
[ 171.562173] ESR = 0x0000000096000044
[ 171.566227] EC = 0x25: DABT (current EL), IL = 32 bits
[ 171.573108] SET = 0, FnV = 0
[ 171.576448] EA = 0, S1PTW = 0
[ 171.579745] FSC = 0x04: level 0 translation fault
[ 171.584760] Data abort info:
[ 171.588012] ISV = 0, ISS = 0x00000044, ISS2 = 0x00000000
[ 171.593734] CM = 0, WnR = 1, TnD = 0, TagAccess = 0
[ 171.598962] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[ 171.604471] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000083837000
[ 171.611358] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000
[ 171.618500] Internal error: Oops: 0000000096000044 [#1] SMP
[ 171.624222] Modules linked in: powervr drm_shmem_helper drm_gpuvm...
[ 171.656580] CPU: 0 UID: 0 PID: 549 Comm: bash Not tainted 7.0.0-rc2-g730b257ba723-dirty #13 PREEMPT
[ 171.665773] Hardware name: BeagleBoard.org BeaglePlay (DT)
[ 171.671296] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 171.678306] pc : pvr_fw_trace_mask_set+0x78/0x154 [powervr]
[ 171.683959] lr : pvr_fw_trace_mask_set+0x4c/0x154 [powervr]
[ 171.689593] sp : ffff8000835ebb90
[ 171.692929] x29: ffff8000835ebc00 x28: ffff000005c60f80 x27: 0000000000000000
[ 171.700130] x26: 0000000000000000 x25: ffff00000504af28 x24: 0000000000000000
[ 171.707324] x23: ffff00000504af50 x22: 0000000000000203 x21: 0000000000000000
[ 171.714518] x20: ffff000005c44a80 x19: ffff000005c457b8 x18: 0000000000000000
[ 171.721715] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaaae8887580
[ 171.728908] x14: 0000000000000000 x13: 0000000000000000 x12: ffff8000835ebc30
[ 171.736095] x11: ffff00000504af2a x10: ffff00008504af29 x9 : 0fffffffffffffff
[ 171.743286] x8 : ffff8000835ebbf8 x7 : 0000000000000000 x6 : 000000000000002a
[ 171.750479] x5 : ffff00000504af2e x4 : 0000000000000000 x3 : 0000000000000010
[ 171.757674] x2 : 0000000000000203 x1 : 0000000000000000 x0 : ffff8000835ebba0
[ 171.764871] Call trace:
[ 171.767342] pvr_fw_trace_mask_set+0x78/0x154 [powervr] (P)
[ 171.772984] simple_attr_write_xsigned.isra.0+0xe0/0x19c
[ 171.778341] simple_attr_write+0x18/0x24
[ 171.782296] debugfs_attr_write+0x50/0x98
[ 171.786341] full_proxy_write+0x6c/0xa8
[ 171.790208] vfs_write+0xd4/0x350
[ 171.793561] ksys_write+0x70/0x108
[ 171.796995] __arm64_sys_write+0x1c/0x28
[ 171.800952] invoke_syscall+0x48/0x10c
[ 171.804740] el0_svc_common.constprop.0+0x40/0xe0
[ 171.809487] do_el0_svc+0x1c/0x28
[ 171.812834] el0_svc+0x34/0x108
[ 171.816013] el0t_64_sync_handler+0xa0/0xe4
[ 171.820237] el0t_64_sync+0x198/0x19c
[ 171.823939] Code: 32000262 b90ac293 1a931056 9134e293 (b9000036)
[ 171.830073] ---[ end trace 0000000000000000 ]---
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | 7.1 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/gpu/drm/imagination/pvr_fw_trace.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "ba422758981b61585c7da6429f50ef1c58d326f7",
"status": "affected",
"version": "a331631496a0af9a6f4e7e1860983afd8b1bb013",
"versionType": "git"
},
{
"lessThan": "5dfd429591f8d7185bf63a08b5c30863fb605611",
"status": "affected",
"version": "a331631496a0af9a6f4e7e1860983afd8b1bb013",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/gpu/drm/imagination/pvr_fw_trace.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "7.0"
},
{
"lessThan": "7.0",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"version": "7.0.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "37C6A06A-578A-467F-8EE4-E50B9A46C871",
"versionEndExcluding": "7.0.4",
"versionStartIncluding": "7.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*",
"matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/imagination: Fix segfault when updating ftrace mask\n\nFix invalid data access by passing right data for debugfs entry.\n\n[ 171.549793] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[ 171.559248] Mem abort info:\n[ 171.562173] ESR = 0x0000000096000044\n[ 171.566227] EC = 0x25: DABT (current EL), IL = 32 bits\n[ 171.573108] SET = 0, FnV = 0\n[ 171.576448] EA = 0, S1PTW = 0\n[ 171.579745] FSC = 0x04: level 0 translation fault\n[ 171.584760] Data abort info:\n[ 171.588012] ISV = 0, ISS = 0x00000044, ISS2 = 0x00000000\n[ 171.593734] CM = 0, WnR = 1, TnD = 0, TagAccess = 0\n[ 171.598962] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[ 171.604471] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000083837000\n[ 171.611358] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n[ 171.618500] Internal error: Oops: 0000000096000044 [#1] SMP\n[ 171.624222] Modules linked in: powervr drm_shmem_helper drm_gpuvm...\n[ 171.656580] CPU: 0 UID: 0 PID: 549 Comm: bash Not tainted 7.0.0-rc2-g730b257ba723-dirty #13 PREEMPT\n[ 171.665773] Hardware name: BeagleBoard.org BeaglePlay (DT)\n[ 171.671296] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 171.678306] pc : pvr_fw_trace_mask_set+0x78/0x154 [powervr]\n[ 171.683959] lr : pvr_fw_trace_mask_set+0x4c/0x154 [powervr]\n[ 171.689593] sp : ffff8000835ebb90\n[ 171.692929] x29: ffff8000835ebc00 x28: ffff000005c60f80 x27: 0000000000000000\n[ 171.700130] x26: 0000000000000000 x25: ffff00000504af28 x24: 0000000000000000\n[ 171.707324] x23: ffff00000504af50 x22: 0000000000000203 x21: 0000000000000000\n[ 171.714518] x20: ffff000005c44a80 x19: ffff000005c457b8 x18: 0000000000000000\n[ 171.721715] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaaae8887580\n[ 171.728908] x14: 0000000000000000 x13: 0000000000000000 x12: ffff8000835ebc30\n[ 171.736095] x11: ffff00000504af2a x10: ffff00008504af29 x9 : 0fffffffffffffff\n[ 171.743286] x8 : ffff8000835ebbf8 x7 : 0000000000000000 x6 : 000000000000002a\n[ 171.750479] x5 : ffff00000504af2e x4 : 0000000000000000 x3 : 0000000000000010\n[ 171.757674] x2 : 0000000000000203 x1 : 0000000000000000 x0 : ffff8000835ebba0\n[ 171.764871] Call trace:\n[ 171.767342] pvr_fw_trace_mask_set+0x78/0x154 [powervr] (P)\n[ 171.772984] simple_attr_write_xsigned.isra.0+0xe0/0x19c\n[ 171.778341] simple_attr_write+0x18/0x24\n[ 171.782296] debugfs_attr_write+0x50/0x98\n[ 171.786341] full_proxy_write+0x6c/0xa8\n[ 171.790208] vfs_write+0xd4/0x350\n[ 171.793561] ksys_write+0x70/0x108\n[ 171.796995] __arm64_sys_write+0x1c/0x28\n[ 171.800952] invoke_syscall+0x48/0x10c\n[ 171.804740] el0_svc_common.constprop.0+0x40/0xe0\n[ 171.809487] do_el0_svc+0x1c/0x28\n[ 171.812834] el0_svc+0x34/0x108\n[ 171.816013] el0t_64_sync_handler+0xa0/0xe4\n[ 171.820237] el0t_64_sync+0x198/0x19c\n[ 171.823939] Code: 32000262 b90ac293 1a931056 9134e293 (b9000036)\n[ 171.830073] ---[ end trace 0000000000000000 ]---"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/imagination: Corrige el fallo de segmentaci\u00f3n al actualizar la m\u00e1scara de ftrace\n\nCorrige el acceso a datos no v\u00e1lido al pasar los datos correctos para la entrada de debugfs.\n\n[ 171.549793] No se puede manejar la desreferencia de puntero NULL del kernel en la direcci\u00f3n virtual 0000000000000000\n[ 171.559248] Informaci\u00f3n de aborto de memoria:\n[ 171.562173] ESR = 0x0000000096000044\n[ 171.566227] EC = 0x25: DABT (EL actual), IL = 32 bits\n[ 171.573108] SET = 0, FnV = 0\n[ 171.576448] EA = 0, S1PTW = 0\n[ 171.579745] FSC = 0x04: fallo de traducci\u00f3n de nivel 0\n[ 171.584760] Informaci\u00f3n de aborto de datos:\n[ 171.588012] ISV = 0, ISS = 0x00000044, ISS2 = 0x00000000\n[ 171.593734] CM = 0, WnR = 1, TnD = 0, TagAccess = 0\n[ 171.598962] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[ 171.604471] tabla de p\u00e1ginas de usuario: p\u00e1ginas de 4k, VAs de 48 bits, pgdp=0000000083837000\n[ 171.611358] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n[ 171.618500] Error interno: Oops: 0000000096000044 [#1] SMP\n[ 171.624222] M\u00f3dulos enlazados: powervr drm_shmem_helper drm_gpuvm...\n[ 171.656580] CPU: 0 UID: 0 PID: 549 Comm: bash No contaminado 7.0.0-rc2-g730b257ba723-dirty #13 PREEMPT\n[ 171.665773] Nombre del hardware: BeagleBoard.org BeaglePlay (DT)\n[ 171.671296] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 171.678306] pc : pvr_fw_trace_mask_set+0x78/0x154 [powervr]\n[ 171.683959] lr : pvr_fw_trace_mask_set+0x4c/0x154 [powervr]\n[ 171.689593] sp : ffff8000835ebb90\n[ 171.692929] x29: ffff8000835ebc00 x28: ffff000005c60f80 x27: 0000000000000000\n[ 171.700130] x26: 0000000000000000 x25: ffff00000504af28 x24: 0000000000000000\n[ 171.707324] x23: ffff00000504af50 x22: 0000000000000203 x21: 0000000000000000\n[ 171.714518] x20: ffff000005c44a80 x19: ffff000005c457b8 x18: 0000000000000000\n[ 171.721715] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaaae8887580\n[ 171.728908] x14: 0000000000000000 x13: 0000000000000000 x12: ffff8000835ebc30\n[ 171.736095] x11: ffff00000504af2a x10: ffff00008504af29 x9 : 0fffffffffffffff\n[ 171.743286] x8 : ffff8000835ebbf8 x7 : 0000000000000000 x6 : 000000000000002a\n[ 171.750479] x5 : ffff00000504af2e x4 : 0000000000000000 x3 : 0000000000000010\n[ 171.757674] x2 : 0000000000000203 x1 : 0000000000000000 x0 : ffff8000835ebba0\n[ 171.764871] Traza de llamada:\n[ 171.767342] pvr_fw_trace_mask_set+0x78/0x154 [powervr] (P)\n[ 171.772984] simple_attr_write_xsigned.isra.0+0xe0/0x19c\n[ 171.778341] simple_attr_write+0x18/0x24\n[ 171.782296] debugfs_attr_write+0x50/0x98\n[ 171.786341] full_proxy_write+0x6c/0xa8\n[ 171.790208] vfs_write+0xd4/0x350\n[ 171.793561] ksys_write+0x70/0x108\n[ 171.796995] __arm64_sys_write+0x1c/0x28\n[ 171.800952] invoke_syscall+0x48/0x10c\n[ 171.804740] el0_svc_common.constprop.0+0x40/0xe0\n[ 171.809487] do_el0_svc+0x1c/0x28\n[ 171.812834] el0_svc+0x34/0x108\n[ 171.816013] el0t_64_sync_handler+0xa0/0xe4\n[ 171.820237] el0t_64_sync+0x198/0x19c\n[ 171.823939] C\u00f3digo: 32000262 b90ac293 1a931056 9134e293 (b9000036)\n[ 171.830073] ---[ fin de la traza 0000000000000000 ]---"
}
],
"id": "CVE-2026-46278",
"lastModified": "2026-07-23T08:10:00.137",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2026-06-08T17:16:45.390",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/5dfd429591f8d7185bf63a08b5c30863fb605611"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/ba422758981b61585c7da6429f50ef1c58d326f7"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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