{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68146", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.371Z", "datePublished": "2026-08-10T11:59:11.273Z", "dateUpdated": "2026-08-10T11:59:11.273Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-10T11:59:11.273Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Add global mutex to serialize trace_parser access\n\nIn ftrace, the trace_parser structure is allocated and initialized when\na trace file is opened, and is subsequently used across write and release\nhandlers to parse user input.\n\nThe affected handler paths and their specific functions are:\n - Open paths: ftrace_regex_open(), ftrace_graph_open()\n - Write paths: ftrace_regex_write(), ftrace_graph_write()\n - Release paths: ftrace_regex_release(), ftrace_graph_release()\n\nIf userspace opens a trace file descriptor and shares it across multiple\nthreads, concurrent write calls will race on the parser's internal state,\nspecifically the 'idx', 'cont', and 'buffer' fields, leading to corrupted\ninput or undefined behavior.\n\nFix this by adding a global mutex, parser_lock, to serialize all access\nto trace_parser across write and release paths, preventing concurrent\ncorruption of parser state."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/ftrace.c"], "versions": [{"version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907", "lessThan": "3d0dd138a06c782f8b755cd1b6f9909494514ce1", "status": "affected", "versionType": "git"}, {"version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907", "lessThan": "90be137813e1a5bdfd671e40fe28004fb959d3e4", "status": "affected", "versionType": "git"}, {"version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907", "lessThan": "65bf73bee1a4f3722208ae46afc0fa5de76b9a0a", "status": "affected", "versionType": "git"}, {"version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907", "lessThan": "e807c9193d9493c7a0d039158ebb955050a76df1", "status": "affected", "versionType": "git"}, {"version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907", "lessThan": "7720b63bcef3f54c7fe288774b720a227d54a306", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/ftrace.c"], "versions": [{"version": "2.6.32", "status": "affected"}, {"version": "0", "lessThan": "2.6.32", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc5", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32", "versionEndExcluding": "7.2-rc5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3d0dd138a06c782f8b755cd1b6f9909494514ce1"}, {"url": "https://git.kernel.org/stable/c/90be137813e1a5bdfd671e40fe28004fb959d3e4"}, {"url": "https://git.kernel.org/stable/c/65bf73bee1a4f3722208ae46afc0fa5de76b9a0a"}, {"url": "https://git.kernel.org/stable/c/e807c9193d9493c7a0d039158ebb955050a76df1"}, {"url": "https://git.kernel.org/stable/c/7720b63bcef3f54c7fe288774b720a227d54a306"}], "title": "ftrace: Add global mutex to serialize trace_parser access", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/trace/ftrace.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3d0dd138a06c782f8b755cd1b6f9909494514ce1", "status": "affected", "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907", "versionType": "git"}, {"lessThan": "90be137813e1a5bdfd671e40fe28004fb959d3e4", "status": "affected", "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907", "versionType": "git"}, {"lessThan": "65bf73bee1a4f3722208ae46afc0fa5de76b9a0a", "status": "affected", "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907", "versionType": "git"}, {"lessThan": "e807c9193d9493c7a0d039158ebb955050a76df1", "status": "affected", "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907", "versionType": "git"}, {"lessThan": "7720b63bcef3f54c7fe288774b720a227d54a306", "status": "affected", "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/trace/ftrace.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.32"}, {"lessThan": "2.6.32", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc5", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Add global mutex to serialize trace_parser access\n\nIn ftrace, the trace_parser structure is allocated and initialized when\na trace file is opened, and is subsequently used across write and release\nhandlers to parse user input.\n\nThe affected handler paths and their specific functions are:\n - Open paths: ftrace_regex_open(), ftrace_graph_open()\n - Write paths: ftrace_regex_write(), ftrace_graph_write()\n - Release paths: ftrace_regex_release(), ftrace_graph_release()\n\nIf userspace opens a trace file descriptor and shares it across multiple\nthreads, concurrent write calls will race on the parser's internal state,\nspecifically the 'idx', 'cont', and 'buffer' fields, leading to corrupted\ninput or undefined behavior.\n\nFix this by adding a global mutex, parser_lock, to serialize all access\nto trace_parser across write and release paths, preventing concurrent\ncorruption of parser state."}], "id": "CVE-2026-68146", "lastModified": "2026-08-10T13:20:00.470", "metrics": {}, "published": "2026-08-10T13:20:00.470", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3d0dd138a06c782f8b755cd1b6f9909494514ce1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/65bf73bee1a4f3722208ae46afc0fa5de76b9a0a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7720b63bcef3f54c7fe288774b720a227d54a306"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/90be137813e1a5bdfd671e40fe28004fb959d3e4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e807c9193d9493c7a0d039158ebb955050a76df1"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel ftrace: Data corruption and undefined behavior due to race condition in trace_parser.", "id": "2513374", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513374"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H", "status": "draft"}, "cwe": "CWE-820", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nftrace: Add global mutex to serialize trace_parser access\nIn ftrace, the trace_parser structure is allocated and initialized when\na trace file is opened, and is subsequently used across write and release\nhandlers to parse user input.\nThe affected handler paths and their specific functions are:\n- Open paths: ftrace_regex_open(), ftrace_graph_open()\n- Write paths: ftrace_regex_write(), ftrace_graph_write()\n- Release paths: ftrace_regex_release(), ftrace_graph_release()\nIf userspace opens a trace file descriptor and shares it across multiple\nthreads, concurrent write calls will race on the parser's internal state,\nspecifically the 'idx', 'cont', and 'buffer' fields, leading to corrupted\ninput or undefined behavior.\nFix this by adding a global mutex, parser_lock, to serialize all access\nto trace_parser across write and release paths, preventing concurrent\ncorruption of parser state.", "A flaw was found in the Linux kernel's ftrace tracing subsystem. When a userspace program opens a trace file descriptor and shares it across multiple threads, concurrent write operations can lead to a race condition in the `trace_parser` structure. This can result in corrupted input or undefined behavior within the kernel, potentially impacting system stability."], "name": "CVE-2026-68146", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T11:59:11Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68146\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68146\nhttps://git.kernel.org/stable/c/3d0dd138a06c782f8b755cd1b6f9909494514ce1\nhttps://git.kernel.org/stable/c/65bf73bee1a4f3722208ae46afc0fa5de76b9a0a\nhttps://git.kernel.org/stable/c/7720b63bcef3f54c7fe288774b720a227d54a306\nhttps://git.kernel.org/stable/c/90be137813e1a5bdfd671e40fe28004fb959d3e4\nhttps://git.kernel.org/stable/c/e807c9193d9493c7a0d039158ebb955050a76df1"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[689fd8b65d669b96d612ccc37d6fb87bf7ed6907,3d0dd138a06c782f8b755cd1b6f9909494514ce1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[689fd8b65d669b96d612ccc37d6fb87bf7ed6907,90be137813e1a5bdfd671e40fe28004fb959d3e4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[689fd8b65d669b96d612ccc37d6fb87bf7ed6907,65bf73bee1a4f3722208ae46afc0fa5de76b9a0a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[689fd8b65d669b96d612ccc37d6fb87bf7ed6907,e807c9193d9493c7a0d039158ebb955050a76df1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[689fd8b65d669b96d612ccc37d6fb87bf7ed6907,7720b63bcef3f54c7fe288774b720a227d54a306)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.32"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.32)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2-rc5,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-10T16:15:04.171072+00:00", "updated": "2026-08-13T07:30:06.740021+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}