CVE-2025-37765
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
drm/nouveau: prime: fix ttm_bo_delayed_delete oops
Fix an oops in ttm_bo_delayed_delete which results from dererencing a dangling pointer:
The cause of this is:
Fix this by moving the drm_prime_gem_destroy call from nouveau_gem_object_del to nouveau_bo_del_ttm. This ensures that it will be run after ttm_bo_delayed_delete.
Detalles técnicos trazas, registros y código del informe original
Oops: general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b7b: 0000 [#1] PREEMPT SMP CPU: 4 UID: 0 PID: 1082 Comm: kworker/u65:2 Not tainted 6.14.0-rc4-00267-g505460b44513-dirty #216 Hardware name: LENOVO 82N6/LNVNB161216, BIOS GKCN65WW 01/16/2024 Workqueue: ttm ttm_bo_delayed_delete [ttm] RIP: 0010:dma_resv_iter_first_unlocked+0x55/0x290 Code: 31 f6 48 c7 c7 00 2b fa aa e8 97 bd 52 ff e8 a2 c1 53 00 5a 85 c0 74 48 e9 88 01 00 00 4c 89 63 20 4d 85 e4 0f 84 30 01 00 00 <41> 8b 44 24 10 c6 43 2c 01 48 89 df 89 43 28 e8 97 fd ff ff 4c 8b RSP: 0018:ffffbf9383473d60 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffffbf9383473d88 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffbf9383473d78 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 6b6b6b6b6b6b6b6b R13: ffffa003bbf78580 R14: ffffa003a6728040 R15: 00000000000383cc FS: 0000000000000000(0000) GS:ffffa00991c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000758348024dd0 CR3: 000000012c259000 CR4: 0000000000f50ef0 PKRU: 55555554 Call Trace: <TASK> ? __die_body.cold+0x19/0x26 ? die_addr+0x3d/0x70 ? exc_general_protection+0x159/0x460 ? asm_exc_general_protection+0x27/0x30 ? dma_resv_iter_first_unlocked+0x55/0x290 dma_resv_wait_timeout+0x56/0x100 ttm_bo_delayed_delete+0x69/0xb0 [ttm] process_one_work+0x217/0x5c0 worker_thread+0x1c8/0x3d0 ? apply_wqattrs_cleanup.part.0+0xc0/0xc0 kthread+0x10b/0x240 ? kthreads_online_cpu+0x140/0x140 ret_from_fork+0x40/0x70 ? kthreads_online_cpu+0x140/0x140 ret_from_fork_asm+0x11/0x20 </TASK> - drm_prime_gem_destroy calls dma_buf_put(dma_buf) which releases the reference to the shared dma_buf. The reference count is 0, so the dma_buf is destroyed, which in turn decrements the corresponding amdgpu_bo reference count to 0, and the amdgpu_bo is destroyed - calling drm_gem_object_release then dma_resv_fini (which destroys the reservation object), then finally freeing the amdgpu_bo. - nouveau_bo obj->bo.base.resv is now a dangling pointer to the memory formerly allocated to the amdgpu_bo. - nouveau_gem_object_del calls ttm_bo_put(&nvbo->bo) which calls ttm_bo_release, which schedules ttm_bo_delayed_delete. - ttm_bo_delayed_delete runs and dereferences the dangling resv pointer, resulting in a general protection fault.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.22%
- Percentil entre todas las CVEs puntuadas: 12
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (2)
CWE
- CWE-416
Referencias
- https://git.kernel.org/stable/c/12b038d521c75e3521522503becf3bc162628469
- https://git.kernel.org/stable/c/31e94c7989572f96926673614a3b958915a13ca9
- https://git.kernel.org/stable/c/47761deabb69a5df0c2c4ec400d80bb3e072bd2e
- https://git.kernel.org/stable/c/6b95947ee780f4e1fb26413a1437d05bcb99712b
- https://git.kernel.org/stable/c/6e2c805996a49998d31ac522beb1534ca417e761
- https://git.kernel.org/stable/c/706868a1a1072cffd8bd63f7e161d79141099849
- https://git.kernel.org/stable/c/8ec0fbb28d049273bfd4f1e7a5ae4c74884beed3
- https://git.kernel.org/stable/c/ada78110b2d3ec88b398a49703bd336d4cee7a08
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-37765",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Secondary",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.8
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "22b33e8ed0e38b8ddcf082e35580f2e67a3a0262",
"lessThan": "706868a1a1072cffd8bd63f7e161d79141099849",
"versionType": "git"
},
{
"status": "affected",
"version": "22b33e8ed0e38b8ddcf082e35580f2e67a3a0262",
"lessThan": "47761deabb69a5df0c2c4ec400d80bb3e072bd2e",
"versionType": "git"
},
{
"status": "affected",
"version": "22b33e8ed0e38b8ddcf082e35580f2e67a3a0262",
"lessThan": "ada78110b2d3ec88b398a49703bd336d4cee7a08",
"versionType": "git"
},
{
"status": "affected",
"version": "22b33e8ed0e38b8ddcf082e35580f2e67a3a0262",
"lessThan": "12b038d521c75e3521522503becf3bc162628469",
"versionType": "git"
},
{
"status": "affected",
"version": "22b33e8ed0e38b8ddcf082e35580f2e67a3a0262",
"lessThan": "31e94c7989572f96926673614a3b958915a13ca9",
"versionType": "git"
},
{
"status": "affected",
"version": "22b33e8ed0e38b8ddcf082e35580f2e67a3a0262",
"lessThan": "6e2c805996a49998d31ac522beb1534ca417e761",
"versionType": "git"
},
{
"status": "affected",
"version": "22b33e8ed0e38b8ddcf082e35580f2e67a3a0262",
"lessThan": "6b95947ee780f4e1fb26413a1437d05bcb99712b",
"versionType": "git"
},
{
"status": "affected",
"version": "22b33e8ed0e38b8ddcf082e35580f2e67a3a0262",
"lessThan": "8ec0fbb28d049273bfd4f1e7a5ae4c74884beed3",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/nouveau/nouveau_bo.c",
"drivers/gpu/drm/nouveau/nouveau_gem.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.4.293",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.237",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.181",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.135",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.88",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.25",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.14.4",
"versionType": "semver",
"lessThanOrEqual": "6.14.*"
},
{
"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/nouveau/nouveau_bo.c",
"drivers/gpu/drm/nouveau/nouveau_gem.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-05-01T14:15:39.417",
"references": [
{
"url": "https://git.kernel.org/stable/c/12b038d521c75e3521522503becf3bc162628469",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/31e94c7989572f96926673614a3b958915a13ca9",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/47761deabb69a5df0c2c4ec400d80bb3e072bd2e",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6b95947ee780f4e1fb26413a1437d05bcb99712b",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6e2c805996a49998d31ac522beb1534ca417e761",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/706868a1a1072cffd8bd63f7e161d79141099849",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/8ec0fbb28d049273bfd4f1e7a5ae4c74884beed3",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ada78110b2d3ec88b398a49703bd336d4cee7a08",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html",
"tags": [
"Mailing List"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html",
"tags": [
"Mailing List"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau: prime: fix ttm_bo_delayed_delete oops\n\nFix an oops in ttm_bo_delayed_delete which results from dererencing a\ndangling pointer:\n\nOops: general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b7b: 0000 [#1] PREEMPT SMP\nCPU: 4 UID: 0 PID: 1082 Comm: kworker/u65:2 Not tainted 6.14.0-rc4-00267-g505460b44513-dirty #216\nHardware name: LENOVO 82N6/LNVNB161216, BIOS GKCN65WW 01/16/2024\nWorkqueue: ttm ttm_bo_delayed_delete [ttm]\nRIP: 0010:dma_resv_iter_first_unlocked+0x55/0x290\nCode: 31 f6 48 c7 c7 00 2b fa aa e8 97 bd 52 ff e8 a2 c1 53 00 5a 85 c0 74 48 e9 88 01 00 00 4c 89 63 20 4d 85 e4 0f 84 30 01 00 00 <41> 8b 44 24 10 c6 43 2c 01 48 89 df 89 43 28 e8 97 fd ff ff 4c 8b\nRSP: 0018:ffffbf9383473d60 EFLAGS: 00010202\nRAX: 0000000000000001 RBX: ffffbf9383473d88 RCX: 0000000000000000\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\nRBP: ffffbf9383473d78 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000000 R12: 6b6b6b6b6b6b6b6b\nR13: ffffa003bbf78580 R14: ffffa003a6728040 R15: 00000000000383cc\nFS: 0000000000000000(0000) GS:ffffa00991c00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000758348024dd0 CR3: 000000012c259000 CR4: 0000000000f50ef0\nPKRU: 55555554\nCall Trace:\n <TASK>\n ? __die_body.cold+0x19/0x26\n ? die_addr+0x3d/0x70\n ? exc_general_protection+0x159/0x460\n ? asm_exc_general_protection+0x27/0x30\n ? dma_resv_iter_first_unlocked+0x55/0x290\n dma_resv_wait_timeout+0x56/0x100\n ttm_bo_delayed_delete+0x69/0xb0 [ttm]\n process_one_work+0x217/0x5c0\n worker_thread+0x1c8/0x3d0\n ? apply_wqattrs_cleanup.part.0+0xc0/0xc0\n kthread+0x10b/0x240\n ? kthreads_online_cpu+0x140/0x140\n ret_from_fork+0x40/0x70\n ? kthreads_online_cpu+0x140/0x140\n ret_from_fork_asm+0x11/0x20\n </TASK>\n\nThe cause of this is:\n\n- drm_prime_gem_destroy calls dma_buf_put(dma_buf) which releases the\n reference to the shared dma_buf. The reference count is 0, so the\n dma_buf is destroyed, which in turn decrements the corresponding\n amdgpu_bo reference count to 0, and the amdgpu_bo is destroyed -\n calling drm_gem_object_release then dma_resv_fini (which destroys the\n reservation object), then finally freeing the amdgpu_bo.\n\n- nouveau_bo obj->bo.base.resv is now a dangling pointer to the memory\n formerly allocated to the amdgpu_bo.\n\n- nouveau_gem_object_del calls ttm_bo_put(&nvbo->bo) which calls\n ttm_bo_release, which schedules ttm_bo_delayed_delete.\n\n- ttm_bo_delayed_delete runs and dereferences the dangling resv pointer,\n resulting in a general protection fault.\n\nFix this by moving the drm_prime_gem_destroy call from\nnouveau_gem_object_del to nouveau_bo_del_ttm. This ensures that it will\nbe run after ttm_bo_delayed_delete."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/nouveau: prime: fix ttm_bo_delayed_delete oops Corrige un oops en ttm_bo_delayed_delete que resulta de la desreferenciación de un puntero colgante: Oops: fallo de protección general, probablemente para dirección no canónica 0x6b6b6b6b6b6b6b7b: 0000 [#1] PREEMPT SMP CPU: 4 UID: 0 PID: 1082 Comm: kworker/u65:2 No contaminado 6.14.0-rc4-00267-g505460b44513-dirty #216 Nombre del hardware: LENOVO 82N6/LNVNB161216, BIOS GKCN65WW 16/01/2024 Cola de trabajo: ttm ttm_bo_delayed_delete [ttm] RIP: 0010:dma_resv_iter_first_unlocked+0x55/0x290 Código: 31 f6 48 c7 c7 00 2b fa aa e8 97 bd 52 ff e8 a2 c1 53 00 5a 85 c0 74 48 e9 88 01 00 00 4c 89 63 20 4d 85 e4 0f 84 30 01 00 00 <41> 8b 44 24 10 c6 43 2c 01 48 89 df 89 43 28 e8 97 fd ff ff 4c 8b RSP: 0018:ffffbf9383473d60 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffffbf9383473d88 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffbf9383473d78 R08: 000000000000000 R09: 0000000000000000 R10: 000000000000000 R11: 000000000000000 R12: 6b6b6b6b6b6b6b6b R13: ffffa003bbf78580 R14: ffffa003a6728040 R15: 00000000000383cc FS: 0000000000000000(0000) GS:ffffa00991c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000758348024dd0 CR3: 000000012c259000 CR4: 0000000000f50ef0 PKRU: 55555554 Rastreo de llamadas: ? __die_body.cold+0x19/0x26 ? die_addr+0x3d/0x70 ? exc_general_protection+0x159/0x460 ? asm_exc_general_protection+0x27/0x30 ? dma_resv_iter_first_unlocked+0x55/0x290 dma_resv_wait_timeout+0x56/0x100 ttm_bo_delayed_delete+0x69/0xb0 [ttm] process_one_work+0x217/0x5c0 worker_thread+0x1c8/0x3d0 ? apply_wqattrs_cleanup.part.0+0xc0/0xc0 kthread+0x10b/0x240 ? kthreads_online_cpu+0x140/0x140 ret_from_fork+0x40/0x70 ? kthreads_online_cpu+0x140/0x140 ret_from_fork_asm+0x11/0x20 La causa es: - drm_prime_gem_destroy llama a dma_buf_put(dma_buf), que libera la referencia al dma_buf compartido. El recuento de referencias es 0, por lo que el dma_buf se destruye, lo que a su vez reduce el recuento de referencias amdgpu_bo correspondiente a 0, y el amdgpu_bo se destruye. - Se llama a drm_gem_object_release y luego a dma_resv_fini (que destruye el objeto de reserva), liberando finalmente el amdgpu_bo. - nouveau_bo obj->bo.base.resv ahora es un puntero colgante a la memoria anteriormente asignada a amdgpu_bo. - nouveau_gem_object_del llama a ttm_bo_put(&nvbo->bo), que a su vez llama a ttm_bo_release, que programa ttm_bo_delayed_delete. - ttm_bo_delayed_delete se ejecuta y desreferencia el puntero colgante resv, lo que genera un fallo de protección general. Para solucionar esto, mueva la llamada drm_prime_gem_destroy de nouveau_gem_object_del a nouveau_bo_del_ttm. Esto garantiza que se ejecute después de ttm_bo_delayed_delete."
}
],
"lastModified": "2026-07-30T06:22:19.687",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BD7EE44F-D15C-4C71-8599-3567BBCE1C81",
"versionEndExcluding": "5.4.293",
"versionStartIncluding": "3.5"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0710B81E-E2FA-4E15-8F68-D297EBB4D50D",
"versionEndExcluding": "5.10.237",
"versionStartIncluding": "5.5"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "12331C9E-F601-4EFC-899E-369F98DCC70B",
"versionEndExcluding": "5.15.181",
"versionStartIncluding": "5.11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5B9ACE29-7445-4B6F-B761-6367C005E275",
"versionEndExcluding": "6.1.135",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6E5947E5-45E3-462A-829B-382B3B1C61BD",
"versionEndExcluding": "6.6.88",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8E59EE65-FA6B-4AE4-8125-26135E28BF35",
"versionEndExcluding": "6.12.25",
"versionStartIncluding": "6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "29FA1A8E-1C2A-4B0B-B397-2C915ECDEDEE",
"versionEndExcluding": "6.14.4",
"versionStartIncluding": "6.13"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8D465631-2980-487A-8E65-40AE2B9F8ED1"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}