FKIE_CVE-2023-53375
Vulnerability from fkie_nvd - Published: 2025-09-18 14:15 - Updated: 2026-06-17 06:45
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/
Summary
In the Linux kernel, the following vulnerability has been resolved:
tracing: Free error logs of tracing instances
When a tracing instance is removed, the error messages that hold errors
that occurred in the instance needs to be freed. The following reports a
memory leak:
# cd /sys/kernel/tracing
# mkdir instances/foo
# echo 'hist:keys=x' > instances/foo/events/sched/sched_switch/trigger
# cat instances/foo/error_log
[ 117.404795] hist:sched:sched_switch: error: Couldn't find field
Command: hist:keys=x
^
# rmdir instances/foo
Then check for memory leaks:
# echo scan > /sys/kernel/debug/kmemleak
# cat /sys/kernel/debug/kmemleak
unreferenced object 0xffff88810d8ec700 (size 192):
comm "bash", pid 869, jiffies 4294950577 (age 215.752s)
hex dump (first 32 bytes):
60 dd 68 61 81 88 ff ff 60 dd 68 61 81 88 ff ff `.ha....`.ha....
a0 30 8c 83 ff ff ff ff 26 00 0a 00 00 00 00 00 .0......&.......
backtrace:
[<00000000dae26536>] kmalloc_trace+0x2a/0xa0
[<00000000b2938940>] tracing_log_err+0x277/0x2e0
[<000000004a0e1b07>] parse_atom+0x966/0xb40
[<0000000023b24337>] parse_expr+0x5f3/0xdb0
[<00000000594ad074>] event_hist_trigger_parse+0x27f8/0x3560
[<00000000293a9645>] trigger_process_regex+0x135/0x1a0
[<000000005c22b4f2>] event_trigger_write+0x87/0xf0
[<000000002cadc509>] vfs_write+0x162/0x670
[<0000000059c3b9be>] ksys_write+0xca/0x170
[<00000000f1cddc00>] do_syscall_64+0x3e/0xc0
[<00000000868ac68c>] entry_SYSCALL_64_after_hwframe+0x72/0xdc
unreferenced object 0xffff888170c35a00 (size 32):
comm "bash", pid 869, jiffies 4294950577 (age 215.752s)
hex dump (first 32 bytes):
0a 20 20 43 6f 6d 6d 61 6e 64 3a 20 68 69 73 74 . Command: hist
3a 6b 65 79 73 3d 78 0a 00 00 00 00 00 00 00 00 :keys=x.........
backtrace:
[<000000006a747de5>] __kmalloc+0x4d/0x160
[<000000000039df5f>] tracing_log_err+0x29b/0x2e0
[<000000004a0e1b07>] parse_atom+0x966/0xb40
[<0000000023b24337>] parse_expr+0x5f3/0xdb0
[<00000000594ad074>] event_hist_trigger_parse+0x27f8/0x3560
[<00000000293a9645>] trigger_process_regex+0x135/0x1a0
[<000000005c22b4f2>] event_trigger_write+0x87/0xf0
[<000000002cadc509>] vfs_write+0x162/0x670
[<0000000059c3b9be>] ksys_write+0xca/0x170
[<00000000f1cddc00>] do_syscall_64+0x3e/0xc0
[<00000000868ac68c>] entry_SYSCALL_64_after_hwframe+0x72/0xdc
The problem is that the error log needs to be freed when the instance is
removed.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.3 | |
| linux | linux_kernel | 6.3 | |
| linux | linux_kernel | 6.3 | |
| linux | linux_kernel | 6.3 | |
| linux | linux_kernel | 6.3 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"kernel/trace/trace.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "987f599fc556a4e64c405d8dde32c70311e8c278",
"status": "affected",
"version": "2f754e771b1a6feba670782e82c45555984ac43b",
"versionType": "git"
},
{
"lessThan": "6e36373aa5ffa8e00fe7c71b3209f6f17081e552",
"status": "affected",
"version": "2f754e771b1a6feba670782e82c45555984ac43b",
"versionType": "git"
},
{
"lessThan": "33d5d4e67a0e13c3ca6257fa67bf6503bc000878",
"status": "affected",
"version": "2f754e771b1a6feba670782e82c45555984ac43b",
"versionType": "git"
},
{
"lessThan": "c0cf0f55be043ef67c38f492aa37ed1986d2f6b6",
"status": "affected",
"version": "2f754e771b1a6feba670782e82c45555984ac43b",
"versionType": "git"
},
{
"lessThan": "46771c34d6721abfd9e7903eaed2201051eebec6",
"status": "affected",
"version": "2f754e771b1a6feba670782e82c45555984ac43b",
"versionType": "git"
},
{
"lessThan": "3357c6e429643231e60447b52ffbb7ac895aca22",
"status": "affected",
"version": "2f754e771b1a6feba670782e82c45555984ac43b",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"kernel/trace/trace.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.2"
},
{
"lessThan": "5.2",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.241",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.178",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.107",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.24",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.2.*",
"status": "unaffected",
"version": "6.2.11",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "EE119690-3539-4FC9-A606-5FF17C8E08FB",
"versionEndExcluding": "5.4.241",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "896B51EF-6427-4DFF-A2CA-819B349840A1",
"versionEndExcluding": "5.10.178",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6BCC0C73-754E-4985-A087-F74888650709",
"versionEndExcluding": "5.15.107",
"versionStartIncluding": "5.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E6EC432F-985F-450F-954E-7EAD42ADA1F8",
"versionEndExcluding": "6.1.24",
"versionStartIncluding": "5.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "93C03C9A-798F-4CD5-912F-A436BFA0CC7E",
"versionEndExcluding": "6.2.11",
"versionStartIncluding": "6.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:*",
"matchCriteriaId": "B8E3B0E8-FA27-4305-87BB-AF6C25B160CB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:*",
"matchCriteriaId": "A47F0FC3-CE52-4BA1-BA51-22F783938431",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:*",
"matchCriteriaId": "3583026A-27EC-4A4C-850A-83F2AF970673",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc4:*:*:*:*:*:*",
"matchCriteriaId": "DC271202-7570-4505-89A4-D602D47BFD00",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.3:rc5:*:*:*:*:*:*",
"matchCriteriaId": "D413BB6D-4F74-4C7D-9163-47786619EF53",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Free error logs of tracing instances\n\nWhen a tracing instance is removed, the error messages that hold errors\nthat occurred in the instance needs to be freed. The following reports a\nmemory leak:\n\n # cd /sys/kernel/tracing\n # mkdir instances/foo\n # echo \u0027hist:keys=x\u0027 \u003e instances/foo/events/sched/sched_switch/trigger\n # cat instances/foo/error_log\n [ 117.404795] hist:sched:sched_switch: error: Couldn\u0027t find field\n Command: hist:keys=x\n ^\n # rmdir instances/foo\n\nThen check for memory leaks:\n\n # echo scan \u003e /sys/kernel/debug/kmemleak\n # cat /sys/kernel/debug/kmemleak\nunreferenced object 0xffff88810d8ec700 (size 192):\n comm \"bash\", pid 869, jiffies 4294950577 (age 215.752s)\n hex dump (first 32 bytes):\n 60 dd 68 61 81 88 ff ff 60 dd 68 61 81 88 ff ff `.ha....`.ha....\n a0 30 8c 83 ff ff ff ff 26 00 0a 00 00 00 00 00 .0......\u0026.......\n backtrace:\n [\u003c00000000dae26536\u003e] kmalloc_trace+0x2a/0xa0\n [\u003c00000000b2938940\u003e] tracing_log_err+0x277/0x2e0\n [\u003c000000004a0e1b07\u003e] parse_atom+0x966/0xb40\n [\u003c0000000023b24337\u003e] parse_expr+0x5f3/0xdb0\n [\u003c00000000594ad074\u003e] event_hist_trigger_parse+0x27f8/0x3560\n [\u003c00000000293a9645\u003e] trigger_process_regex+0x135/0x1a0\n [\u003c000000005c22b4f2\u003e] event_trigger_write+0x87/0xf0\n [\u003c000000002cadc509\u003e] vfs_write+0x162/0x670\n [\u003c0000000059c3b9be\u003e] ksys_write+0xca/0x170\n [\u003c00000000f1cddc00\u003e] do_syscall_64+0x3e/0xc0\n [\u003c00000000868ac68c\u003e] entry_SYSCALL_64_after_hwframe+0x72/0xdc\nunreferenced object 0xffff888170c35a00 (size 32):\n comm \"bash\", pid 869, jiffies 4294950577 (age 215.752s)\n hex dump (first 32 bytes):\n 0a 20 20 43 6f 6d 6d 61 6e 64 3a 20 68 69 73 74 . Command: hist\n 3a 6b 65 79 73 3d 78 0a 00 00 00 00 00 00 00 00 :keys=x.........\n backtrace:\n [\u003c000000006a747de5\u003e] __kmalloc+0x4d/0x160\n [\u003c000000000039df5f\u003e] tracing_log_err+0x29b/0x2e0\n [\u003c000000004a0e1b07\u003e] parse_atom+0x966/0xb40\n [\u003c0000000023b24337\u003e] parse_expr+0x5f3/0xdb0\n [\u003c00000000594ad074\u003e] event_hist_trigger_parse+0x27f8/0x3560\n [\u003c00000000293a9645\u003e] trigger_process_regex+0x135/0x1a0\n [\u003c000000005c22b4f2\u003e] event_trigger_write+0x87/0xf0\n [\u003c000000002cadc509\u003e] vfs_write+0x162/0x670\n [\u003c0000000059c3b9be\u003e] ksys_write+0xca/0x170\n [\u003c00000000f1cddc00\u003e] do_syscall_64+0x3e/0xc0\n [\u003c00000000868ac68c\u003e] entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nThe problem is that the error log needs to be freed when the instance is\nremoved."
}
],
"id": "CVE-2023-53375",
"lastModified": "2026-06-17T06:45:08.577",
"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"
},
{
"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-53375",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-14T18:54:41.639003Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-09-18T14:15:40.183",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/3357c6e429643231e60447b52ffbb7ac895aca22"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/33d5d4e67a0e13c3ca6257fa67bf6503bc000878"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/46771c34d6721abfd9e7903eaed2201051eebec6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/6e36373aa5ffa8e00fe7c71b3209f6f17081e552"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/987f599fc556a4e64c405d8dde32c70311e8c278"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/c0cf0f55be043ef67c38f492aa37ed1986d2f6b6"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-401"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-401"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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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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