CVE-2023-53352 (GCVE-0-2023-53352)
Vulnerability from cvelistv5 – Published: 2025-09-17 14:56 – Updated: 2026-05-11 19:43
VLAI
EPSS
VEX
Title
drm/ttm: check null pointer before accessing when swapping
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/ttm: check null pointer before accessing when swapping
Add a check to avoid null pointer dereference as below:
[ 90.002283] general protection fault, probably for non-canonical
address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI
[ 90.002292] KASAN: null-ptr-deref in range
[0x0000000000000000-0x0000000000000007]
[ 90.002346] ? exc_general_protection+0x159/0x240
[ 90.002352] ? asm_exc_general_protection+0x26/0x30
[ 90.002357] ? ttm_bo_evict_swapout_allowable+0x322/0x5e0 [ttm]
[ 90.002365] ? ttm_bo_evict_swapout_allowable+0x42e/0x5e0 [ttm]
[ 90.002373] ttm_bo_swapout+0x134/0x7f0 [ttm]
[ 90.002383] ? __pfx_ttm_bo_swapout+0x10/0x10 [ttm]
[ 90.002391] ? lock_acquire+0x44d/0x4f0
[ 90.002398] ? ttm_device_swapout+0xa5/0x260 [ttm]
[ 90.002412] ? lock_acquired+0x355/0xa00
[ 90.002416] ? do_raw_spin_trylock+0xb6/0x190
[ 90.002421] ? __pfx_lock_acquired+0x10/0x10
[ 90.002426] ? ttm_global_swapout+0x25/0x210 [ttm]
[ 90.002442] ttm_device_swapout+0x198/0x260 [ttm]
[ 90.002456] ? __pfx_ttm_device_swapout+0x10/0x10 [ttm]
[ 90.002472] ttm_global_swapout+0x75/0x210 [ttm]
[ 90.002486] ttm_tt_populate+0x187/0x3f0 [ttm]
[ 90.002501] ttm_bo_handle_move_mem+0x437/0x590 [ttm]
[ 90.002517] ttm_bo_validate+0x275/0x430 [ttm]
[ 90.002530] ? __pfx_ttm_bo_validate+0x10/0x10 [ttm]
[ 90.002544] ? kasan_save_stack+0x33/0x60
[ 90.002550] ? kasan_set_track+0x25/0x30
[ 90.002554] ? __kasan_kmalloc+0x8f/0xa0
[ 90.002558] ? amdgpu_gtt_mgr_new+0x81/0x420 [amdgpu]
[ 90.003023] ? ttm_resource_alloc+0xf6/0x220 [ttm]
[ 90.003038] amdgpu_bo_pin_restricted+0x2dd/0x8b0 [amdgpu]
[ 90.003210] ? __x64_sys_ioctl+0x131/0x1a0
[ 90.003210] ? do_syscall_64+0x60/0x90
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:41 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
8996b13051f0c211aaaf243dfd270003f1b67431 , < d39971d902d067b4dc366981b75b17c8c57ed5d1
(git)
Affected: da60170558b956c1b45dee1c4423da2425037426 , < 8089eb93d6787dbf348863e935698b4610d90321 (git) Affected: 17e188e0feb008bab5f4b083083dff7cdc633ca1 , < 1fdd16d89c01336d9a942b5f03673c17d401da87 (git) Affected: c24d051e6b48015e32f1361cdf67e1784dd14a9f , < 49b3b979e79faef129605018ad82aa0f2258f2f7 (git) Affected: a2848d08742c8e8494675892c02c0d22acbe3cf8 , < 2dedcf414bb01b8d966eb445db1d181d92304fb2 (git) |
guessed | |
| Linux | Linux |
Affected:
5.15.124 , < 5.15.126
(semver)
Affected: 6.1.43 , < 6.1.45 (semver) Affected: 6.4.8 , < 6.4.10 (semver) |
guessed |
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],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-29T22:19:18+00:00",
"cve": "CVE-2023-53352",
"id": "CVE-2023-53352",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:fixed": "279",
"product_status:known_affected": "98",
"product_status:known_not_affected": "90",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: drm/ttm: check null pointer before accessing when swapping",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53352.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"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"
}
},
{
"other": {
"content": {
"id": "CVE-2023-53352",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-14T18:41:46.702479Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-01-14T18:41:42.655Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/gpu/drm/ttm/ttm_bo.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "d39971d902d067b4dc366981b75b17c8c57ed5d1",
"status": "affected",
"version": "8996b13051f0c211aaaf243dfd270003f1b67431",
"versionType": "git"
},
{
"lessThan": "8089eb93d6787dbf348863e935698b4610d90321",
"status": "affected",
"version": "da60170558b956c1b45dee1c4423da2425037426",
"versionType": "git"
},
{
"lessThan": "1fdd16d89c01336d9a942b5f03673c17d401da87",
"status": "affected",
"version": "17e188e0feb008bab5f4b083083dff7cdc633ca1",
"versionType": "git"
},
{
"lessThan": "49b3b979e79faef129605018ad82aa0f2258f2f7",
"status": "affected",
"version": "c24d051e6b48015e32f1361cdf67e1784dd14a9f",
"versionType": "git"
},
{
"lessThan": "2dedcf414bb01b8d966eb445db1d181d92304fb2",
"status": "affected",
"version": "a2848d08742c8e8494675892c02c0d22acbe3cf8",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/gpu/drm/ttm/ttm_bo.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "5.15.126",
"status": "affected",
"version": "5.15.124",
"versionType": "semver"
},
{
"lessThan": "6.1.45",
"status": "affected",
"version": "6.1.43",
"versionType": "semver"
},
{
"lessThan": "6.4.10",
"status": "affected",
"version": "6.4.8",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.126",
"versionStartIncluding": "5.15.124",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.45",
"versionStartIncluding": "6.1.43",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.4.10",
"versionStartIncluding": "6.4.8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ttm: check null pointer before accessing when swapping\n\nAdd a check to avoid null pointer dereference as below:\n\n[ 90.002283] general protection fault, probably for non-canonical\naddress 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI\n[ 90.002292] KASAN: null-ptr-deref in range\n[0x0000000000000000-0x0000000000000007]\n[ 90.002346] ? exc_general_protection+0x159/0x240\n[ 90.002352] ? asm_exc_general_protection+0x26/0x30\n[ 90.002357] ? ttm_bo_evict_swapout_allowable+0x322/0x5e0 [ttm]\n[ 90.002365] ? ttm_bo_evict_swapout_allowable+0x42e/0x5e0 [ttm]\n[ 90.002373] ttm_bo_swapout+0x134/0x7f0 [ttm]\n[ 90.002383] ? __pfx_ttm_bo_swapout+0x10/0x10 [ttm]\n[ 90.002391] ? lock_acquire+0x44d/0x4f0\n[ 90.002398] ? ttm_device_swapout+0xa5/0x260 [ttm]\n[ 90.002412] ? lock_acquired+0x355/0xa00\n[ 90.002416] ? do_raw_spin_trylock+0xb6/0x190\n[ 90.002421] ? __pfx_lock_acquired+0x10/0x10\n[ 90.002426] ? ttm_global_swapout+0x25/0x210 [ttm]\n[ 90.002442] ttm_device_swapout+0x198/0x260 [ttm]\n[ 90.002456] ? __pfx_ttm_device_swapout+0x10/0x10 [ttm]\n[ 90.002472] ttm_global_swapout+0x75/0x210 [ttm]\n[ 90.002486] ttm_tt_populate+0x187/0x3f0 [ttm]\n[ 90.002501] ttm_bo_handle_move_mem+0x437/0x590 [ttm]\n[ 90.002517] ttm_bo_validate+0x275/0x430 [ttm]\n[ 90.002530] ? __pfx_ttm_bo_validate+0x10/0x10 [ttm]\n[ 90.002544] ? kasan_save_stack+0x33/0x60\n[ 90.002550] ? kasan_set_track+0x25/0x30\n[ 90.002554] ? __kasan_kmalloc+0x8f/0xa0\n[ 90.002558] ? amdgpu_gtt_mgr_new+0x81/0x420 [amdgpu]\n[ 90.003023] ? ttm_resource_alloc+0xf6/0x220 [ttm]\n[ 90.003038] amdgpu_bo_pin_restricted+0x2dd/0x8b0 [amdgpu]\n[ 90.003210] ? __x64_sys_ioctl+0x131/0x1a0\n[ 90.003210] ? do_syscall_64+0x60/0x90"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T19:43:17.266Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/d39971d902d067b4dc366981b75b17c8c57ed5d1"
},
{
"url": "https://git.kernel.org/stable/c/8089eb93d6787dbf348863e935698b4610d90321"
},
{
"url": "https://git.kernel.org/stable/c/1fdd16d89c01336d9a942b5f03673c17d401da87"
},
{
"url": "https://git.kernel.org/stable/c/49b3b979e79faef129605018ad82aa0f2258f2f7"
},
{
"url": "https://git.kernel.org/stable/c/2dedcf414bb01b8d966eb445db1d181d92304fb2"
}
],
"title": "drm/ttm: check null pointer before accessing when swapping",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-53352",
"datePublished": "2025-09-17T14:56:42.698Z",
"dateReserved": "2025-09-16T16:08:59.567Z",
"dateUpdated": "2026-05-11T19:43:17.266Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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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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