CVE-2023-53375 (GCVE-0-2023-53375)
Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-05-11 19:43
VLAI
EPSS
VEX
Title
tracing: Free error logs of tracing instances
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.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:54 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
2f754e771b1a6feba670782e82c45555984ac43b , < 987f599fc556a4e64c405d8dde32c70311e8c278
(git)
Affected: 2f754e771b1a6feba670782e82c45555984ac43b , < 6e36373aa5ffa8e00fe7c71b3209f6f17081e552 (git) Affected: 2f754e771b1a6feba670782e82c45555984ac43b , < 33d5d4e67a0e13c3ca6257fa67bf6503bc000878 (git) Affected: 2f754e771b1a6feba670782e82c45555984ac43b , < c0cf0f55be043ef67c38f492aa37ed1986d2f6b6 (git) Affected: 2f754e771b1a6feba670782e82c45555984ac43b , < 46771c34d6721abfd9e7903eaed2201051eebec6 (git) Affected: 2f754e771b1a6feba670782e82c45555984ac43b , < 3357c6e429643231e60447b52ffbb7ac895aca22 (git) |
guessed | |
| Linux | Linux |
Affected:
5.2
Unaffected: 0 , < 5.2 (semver) Unaffected: 5.4.241 , ≤ 5.4.* (semver) Unaffected: 5.10.178 , ≤ 5.10.* (semver) Unaffected: 5.15.107 , ≤ 5.15.* (semver) Unaffected: 6.1.24 , ≤ 6.1.* (semver) Unaffected: 6.2.11 , ≤ 6.2.* (semver) Unaffected: 6.3 , ≤ * (original_commit_for_fix) |
guessed |
{
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"metrics": [
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"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",
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"timestamp": "2026-01-14T18:54:41.639003Z",
"version": "2.0.3"
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"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"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
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"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."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T19:43:44.032Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
{
"url": "https://git.kernel.org/stable/c/987f599fc556a4e64c405d8dde32c70311e8c278"
},
{
"url": "https://git.kernel.org/stable/c/6e36373aa5ffa8e00fe7c71b3209f6f17081e552"
},
{
"url": "https://git.kernel.org/stable/c/33d5d4e67a0e13c3ca6257fa67bf6503bc000878"
},
{
"url": "https://git.kernel.org/stable/c/c0cf0f55be043ef67c38f492aa37ed1986d2f6b6"
},
{
"url": "https://git.kernel.org/stable/c/46771c34d6721abfd9e7903eaed2201051eebec6"
},
{
"url": "https://git.kernel.org/stable/c/3357c6e429643231e60447b52ffbb7ac895aca22"
}
],
"title": "tracing: Free error logs of tracing instances",
"x_generator": {
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},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-53375",
"datePublished": "2025-09-18T13:33:21.664Z",
"dateReserved": "2025-09-17T14:54:09.735Z",
"dateUpdated": "2026-05-11T19:43:44.032Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2023-53375",
"date": "2026-09-17",
"epss": "0.00156",
"percentile": "0.05169"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2023-53375\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-18T14:15:40.183\",\"lastModified\":\"2026-06-17T06:45:08.577\",\"vulnStatus\":\"Modified\",\"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.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"kernel/trace/trace.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2f754e771b1a6feba670782e82c45555984ac43b\",\"lessThan\":\"987f599fc556a4e64c405d8dde32c70311e8c278\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2f754e771b1a6feba670782e82c45555984ac43b\",\"lessThan\":\"6e36373aa5ffa8e00fe7c71b3209f6f17081e552\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2f754e771b1a6feba670782e82c45555984ac43b\",\"lessThan\":\"33d5d4e67a0e13c3ca6257fa67bf6503bc000878\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2f754e771b1a6feba670782e82c45555984ac43b\",\"lessThan\":\"c0cf0f55be043ef67c38f492aa37ed1986d2f6b6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2f754e771b1a6feba670782e82c45555984ac43b\",\"lessThan\":\"46771c34d6721abfd9e7903eaed2201051eebec6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2f754e771b1a6feba670782e82c45555984ac43b\",\"lessThan\":\"3357c6e429643231e60447b52ffbb7ac895aca22\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"kernel/trace/trace.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.2\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.2\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.241\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.178\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.107\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.24\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.2.11\",\"lessThanOrEqual\":\"6.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.3\",\"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},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-01-14T18:54:41.639003Z\",\"id\":\"CVE-2023-53375\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.2\",\"versionEndExcluding\":\"5.4.241\",\"matchCriteriaId\":\"EE119690-3539-4FC9-A606-5FF17C8E08FB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.178\",\"matchCriteriaId\":\"896B51EF-6427-4DFF-A2CA-819B349840A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.107\",\"matchCriteriaId\":\"6BCC0C73-754E-4985-A087-F74888650709\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.24\",\"matchCriteriaId\":\"E6EC432F-985F-450F-954E-7EAD42ADA1F8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.2.11\",\"matchCriteriaId\":\"93C03C9A-798F-4CD5-912F-A436BFA0CC7E\"},{\"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\"}]}]}],\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-06-30T10:18:38+00:00",
"cve": "CVE-2023-53375",
"id": "CVE-2023-53375",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_affected": "108",
"product_status:known_not_affected": "166",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: Linux kernel: Memory leak in tracing error log management causes denial of service",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53375.json",
"version": "3"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"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\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-53375\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:54:41.639003Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-401\", \"description\": \"CWE-401 Missing Release of Memory after Effective Lifetime\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:54:37.320Z\"}}], \"cna\": {\"title\": \"tracing: Free error logs of tracing instances\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2f754e771b1a6feba670782e82c45555984ac43b\", \"lessThan\": \"987f599fc556a4e64c405d8dde32c70311e8c278\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2f754e771b1a6feba670782e82c45555984ac43b\", \"lessThan\": \"6e36373aa5ffa8e00fe7c71b3209f6f17081e552\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2f754e771b1a6feba670782e82c45555984ac43b\", \"lessThan\": \"33d5d4e67a0e13c3ca6257fa67bf6503bc000878\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2f754e771b1a6feba670782e82c45555984ac43b\", \"lessThan\": \"c0cf0f55be043ef67c38f492aa37ed1986d2f6b6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2f754e771b1a6feba670782e82c45555984ac43b\", \"lessThan\": \"46771c34d6721abfd9e7903eaed2201051eebec6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2f754e771b1a6feba670782e82c45555984ac43b\", \"lessThan\": \"3357c6e429643231e60447b52ffbb7ac895aca22\", \"versionType\": \"git\"}], \"programFiles\": [\"kernel/trace/trace.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.2\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.2\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.241\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.178\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.107\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.24\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.2.*\"}, {\"status\": \"unaffected\", \"version\": \"6.3\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"kernel/trace/trace.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/987f599fc556a4e64c405d8dde32c70311e8c278\"}, {\"url\": \"https://git.kernel.org/stable/c/6e36373aa5ffa8e00fe7c71b3209f6f17081e552\"}, {\"url\": \"https://git.kernel.org/stable/c/33d5d4e67a0e13c3ca6257fa67bf6503bc000878\"}, {\"url\": \"https://git.kernel.org/stable/c/c0cf0f55be043ef67c38f492aa37ed1986d2f6b6\"}, {\"url\": \"https://git.kernel.org/stable/c/46771c34d6721abfd9e7903eaed2201051eebec6\"}, {\"url\": \"https://git.kernel.org/stable/c/3357c6e429643231e60447b52ffbb7ac895aca22\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.241\", \"versionStartIncluding\": \"5.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.178\", \"versionStartIncluding\": \"5.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.107\", \"versionStartIncluding\": \"5.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.24\", \"versionStartIncluding\": \"5.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2.11\", \"versionStartIncluding\": \"5.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.3\", \"versionStartIncluding\": \"5.2\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T19:43:44.032Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2023-53375\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T19:43:44.032Z\", \"dateReserved\": \"2025-09-17T14:54:09.735Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-18T13:33:21.664Z\", \"assignerShortName\": \"Linux\"}",
"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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