{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-53375", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53375", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-09-18T13:33:21.664Z", "updatedAt": "2026-05-11T19:43:44.032Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "tracing: Free error logs of tracing instances", "summary": "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 'hist:keys=x' > instances/foo/events/sched/sched_switch/trigger\n # cat instances/foo/error_log\n [ 117.404795] hist:sched:sched_switch: error: Couldn't find field\n Command: hist:keys=x\n ^\n # rmdir instances/foo\n\nThen check for memory leaks:\n\n # echo scan > /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......&.......\n backtrace:\n [<00000000dae26536>] kmalloc_trace+0x2a/0xa0\n [<00000000b2938940>] tracing_log_err+0x277/0x2e0\n [<000000004a0e1b07>] parse_atom+0x966/0xb40\n [<0000000023b24337>] parse_expr+0x5f3/0xdb0\n [<00000000594ad074>] event_hist_trigger_parse+0x27f8/0x3560\n [<00000000293a9645>] trigger_process_regex+0x135/0x1a0\n [<000000005c22b4f2>] event_trigger_write+0x87/0xf0\n [<000000002cadc509>] vfs_write+0x162/0x670\n [<0000000059c3b9be>] ksys_write+0xca/0x170\n [<00000000f1cddc00>] do_syscall_64+0x3e/0xc0\n [<00000000868ac68c>] 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 [<000000006a747de5>] __kmalloc+0x4d/0x160\n [<000000000039df5f>] tracing_log_err+0x29b/0x2e0\n [<000000004a0e1b07>] parse_atom+0x966/0xb40\n [<0000000023b24337>] parse_expr+0x5f3/0xdb0\n [<00000000594ad074>] event_hist_trigger_parse+0x27f8/0x3560\n [<00000000293a9645>] trigger_process_regex+0x135/0x1a0\n [<000000005c22b4f2>] event_trigger_write+0x87/0xf0\n [<000000002cadc509>] vfs_write+0x162/0x670\n [<0000000059c3b9be>] ksys_write+0xca/0x170\n [<00000000f1cddc00>] do_syscall_64+0x3e/0xc0\n [<00000000868ac68c>] 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": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "2f754e771b1a6feba670782e82c45555984ac43b", "status": "affected", "versionType": "git", "lessThan": "987f599fc556a4e64c405d8dde32c70311e8c278" }, { "version": "2f754e771b1a6feba670782e82c45555984ac43b", "status": "affected", "versionType": "git", "lessThan": "6e36373aa5ffa8e00fe7c71b3209f6f17081e552" }, { "version": "2f754e771b1a6feba670782e82c45555984ac43b", "status": "affected", "versionType": "git", "lessThan": "33d5d4e67a0e13c3ca6257fa67bf6503bc000878" }, { "version": "2f754e771b1a6feba670782e82c45555984ac43b", "status": "affected", "versionType": "git", "lessThan": "c0cf0f55be043ef67c38f492aa37ed1986d2f6b6" }, { "version": "2f754e771b1a6feba670782e82c45555984ac43b", "status": "affected", "versionType": "git", "lessThan": "46771c34d6721abfd9e7903eaed2201051eebec6" }, { "version": "2f754e771b1a6feba670782e82c45555984ac43b", "status": "affected", "versionType": "git", "lessThan": "3357c6e429643231e60447b52ffbb7ac895aca22" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.2", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.2" }, { "version": "5.4.241", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.178", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.107", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.24", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2.11", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.2.*" }, { "version": "6.3", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }