{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-22035", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.809Z", "datePublished": "2025-04-16T14:11:53.958Z", "dateUpdated": "2025-04-21T15:01:46.658Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-04-16T14:11:53.958Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix use-after-free in print_graph_function_flags during tracer switching\n\nKairui reported a UAF issue in print_graph_function_flags() during\nftrace stress testing [1]. This issue can be reproduced if puting a\n'mdelay(10)' after 'mutex_unlock(&trace_types_lock)' in s_start(),\nand executing the following script:\n\n $ echo function_graph > current_tracer\n $ cat trace > /dev/null &\n $ sleep 5 # Ensure the 'cat' reaches the 'mdelay(10)' point\n $ echo timerlat > current_tracer\n\nThe root cause lies in the two calls to print_graph_function_flags\nwithin print_trace_line during each s_show():\n\n * One through 'iter->trace->print_line()';\n * Another through 'event->funcs->trace()', which is hidden in\n print_trace_fmt() before print_trace_line returns.\n\nTracer switching only updates the former, while the latter continues\nto use the print_line function of the old tracer, which in the script\nabove is print_graph_function_flags.\n\nMoreover, when switching from the 'function_graph' tracer to the\n'timerlat' tracer, s_start only calls graph_trace_close of the\n'function_graph' tracer to free 'iter->private', but does not set\nit to NULL. This provides an opportunity for 'event->funcs->trace()'\nto use an invalid 'iter->private'.\n\nTo fix this issue, set 'iter->private' to NULL immediately after\nfreeing it in graph_trace_close(), ensuring that an invalid pointer\nis not passed to other tracers. Additionally, clean up the unnecessary\n'iter->private = NULL' during each 'cat trace' when using wakeup and\nirqsoff tracers.\n\n [1] https://lore.kernel.org/all/20231112150030.84609-1-ryncsn@gmail.com/"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/trace_functions_graph.c", "kernel/trace/trace_irqsoff.c", "kernel/trace/trace_sched_wakeup.c"], "versions": [{"version": "05319d707732c728eb721ac616a50e7978eb499a", "lessThan": "42561fe62c3628ea3bc9623f64f047605e98857f", "status": "affected", "versionType": "git"}, {"version": "b8205dfed68183dc1470e83863c5ded6d7fa30a9", "lessThan": "de7b309139f862a44379ecd96e93c9133c69f813", "status": "affected", "versionType": "git"}, {"version": "ce6e2b14bc094866d9173db6935da2d752f06d8b", "lessThan": "81a85b12132c8ffe98f5ddbdc185481790aeaa1b", "status": "affected", "versionType": "git"}, {"version": "2cb0c037c927db4ec928cc927488e52aa359786e", "lessThan": "a2cce54c1748216535dda02e185d07a084be837e", "status": "affected", "versionType": "git"}, {"version": "eecb91b9f98d6427d4af5fdb8f108f52572a39e7", "lessThan": "099ef3385800828b74933a96c117574637c3fb3a", "status": "affected", "versionType": "git"}, {"version": "eecb91b9f98d6427d4af5fdb8f108f52572a39e7", "lessThan": "c85efe6e13743cac6ba4ccf144cb91f44c86231a", "status": "affected", "versionType": "git"}, {"version": "eecb91b9f98d6427d4af5fdb8f108f52572a39e7", "lessThan": "f14752d66056d0c7bffe5092130409417d3baa70", "status": "affected", "versionType": "git"}, {"version": "eecb91b9f98d6427d4af5fdb8f108f52572a39e7", "lessThan": "70be951bc01e4a0e10d443f3510bb17426f257fb", "status": "affected", "versionType": "git"}, {"version": "eecb91b9f98d6427d4af5fdb8f108f52572a39e7", "lessThan": "7f81f27b1093e4895e87b74143c59c055c3b1906", "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/trace_functions_graph.c", "kernel/trace/trace_irqsoff.c", "kernel/trace/trace_sched_wakeup.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.292", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.236", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.180", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.134", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.87", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.23", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.11", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14.2", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/42561fe62c3628ea3bc9623f64f047605e98857f"}, {"url": "https://git.kernel.org/stable/c/de7b309139f862a44379ecd96e93c9133c69f813"}, {"url": "https://git.kernel.org/stable/c/81a85b12132c8ffe98f5ddbdc185481790aeaa1b"}, {"url": "https://git.kernel.org/stable/c/a2cce54c1748216535dda02e185d07a084be837e"}, {"url": "https://git.kernel.org/stable/c/099ef3385800828b74933a96c117574637c3fb3a"}, {"url": "https://git.kernel.org/stable/c/c85efe6e13743cac6ba4ccf144cb91f44c86231a"}, {"url": "https://git.kernel.org/stable/c/f14752d66056d0c7bffe5092130409417d3baa70"}, {"url": "https://git.kernel.org/stable/c/70be951bc01e4a0e10d443f3510bb17426f257fb"}, {"url": "https://git.kernel.org/stable/c/7f81f27b1093e4895e87b74143c59c055c3b1906"}], "title": "tracing: Fix use-after-free in print_graph_function_flags during tracer switching", "x_generator": {"engine": "bippy-7c5fe7eed585"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2025-22035", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-04-21T14:57:52.767300Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-21T15:01:46.658Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2025-22035", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-04-21T14:57:52.767300Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-21T14:57:27.164Z"}}], "cna": {"title": "tracing: Fix use-after-free in print_graph_function_flags during tracer switching", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "05319d707732c728eb721ac616a50e7978eb499a", "lessThan": "42561fe62c3628ea3bc9623f64f047605e98857f", "versionType": "git"}, {"status": "affected", "version": "b8205dfed68183dc1470e83863c5ded6d7fa30a9", "lessThan": "de7b309139f862a44379ecd96e93c9133c69f813", "versionType": "git"}, {"status": "affected", "version": "ce6e2b14bc094866d9173db6935da2d752f06d8b", "lessThan": "81a85b12132c8ffe98f5ddbdc185481790aeaa1b", "versionType": "git"}, {"status": "affected", "version": "2cb0c037c927db4ec928cc927488e52aa359786e", "lessThan": "a2cce54c1748216535dda02e185d07a084be837e", "versionType": "git"}, {"status": "affected", "version": "eecb91b9f98d6427d4af5fdb8f108f52572a39e7", "lessThan": "099ef3385800828b74933a96c117574637c3fb3a", "versionType": "git"}, {"status": "affected", "version": "eecb91b9f98d6427d4af5fdb8f108f52572a39e7", "lessThan": "c85efe6e13743cac6ba4ccf144cb91f44c86231a", "versionType": "git"}, {"status": "affected", "version": "eecb91b9f98d6427d4af5fdb8f108f52572a39e7", "lessThan": "f14752d66056d0c7bffe5092130409417d3baa70", "versionType": "git"}, {"status": "affected", "version": "eecb91b9f98d6427d4af5fdb8f108f52572a39e7", "lessThan": "70be951bc01e4a0e10d443f3510bb17426f257fb", "versionType": "git"}, {"status": "affected", "version": "eecb91b9f98d6427d4af5fdb8f108f52572a39e7", "lessThan": "7f81f27b1093e4895e87b74143c59c055c3b1906", "versionType": "git"}], "programFiles": ["kernel/trace/trace_functions_graph.c", "kernel/trace/trace_irqsoff.c", "kernel/trace/trace_sched_wakeup.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.5"}, {"status": "unaffected", "version": "0", "lessThan": "6.5", "versionType": "semver"}, {"status": "unaffected", "version": "5.4.292", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.236", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.180", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.134", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.87", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.23", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.13.11", "versionType": "semver", "lessThanOrEqual": "6.13.*"}, {"status": "unaffected", "version": "6.14.2", "versionType": "semver", "lessThanOrEqual": "6.14.*"}, {"status": "unaffected", "version": "6.15-rc1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["kernel/trace/trace_functions_graph.c", "kernel/trace/trace_irqsoff.c", "kernel/trace/trace_sched_wakeup.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/42561fe62c3628ea3bc9623f64f047605e98857f"}, {"url": "https://git.kernel.org/stable/c/de7b309139f862a44379ecd96e93c9133c69f813"}, {"url": "https://git.kernel.org/stable/c/81a85b12132c8ffe98f5ddbdc185481790aeaa1b"}, {"url": "https://git.kernel.org/stable/c/a2cce54c1748216535dda02e185d07a084be837e"}, {"url": "https://git.kernel.org/stable/c/099ef3385800828b74933a96c117574637c3fb3a"}, {"url": "https://git.kernel.org/stable/c/c85efe6e13743cac6ba4ccf144cb91f44c86231a"}, {"url": "https://git.kernel.org/stable/c/f14752d66056d0c7bffe5092130409417d3baa70"}, {"url": "https://git.kernel.org/stable/c/70be951bc01e4a0e10d443f3510bb17426f257fb"}, {"url": "https://git.kernel.org/stable/c/7f81f27b1093e4895e87b74143c59c055c3b1906"}], "x_generator": {"engine": "bippy-7c5fe7eed585"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix use-after-free in print_graph_function_flags during tracer switching\n\nKairui reported a UAF issue in print_graph_function_flags() during\nftrace stress testing [1]. This issue can be reproduced if puting a\n'mdelay(10)' after 'mutex_unlock(&trace_types_lock)' in s_start(),\nand executing the following script:\n\n $ echo function_graph > current_tracer\n $ cat trace > /dev/null &\n $ sleep 5 # Ensure the 'cat' reaches the 'mdelay(10)' point\n $ echo timerlat > current_tracer\n\nThe root cause lies in the two calls to print_graph_function_flags\nwithin print_trace_line during each s_show():\n\n * One through 'iter->trace->print_line()';\n * Another through 'event->funcs->trace()', which is hidden in\n print_trace_fmt() before print_trace_line returns.\n\nTracer switching only updates the former, while the latter continues\nto use the print_line function of the old tracer, which in the script\nabove is print_graph_function_flags.\n\nMoreover, when switching from the 'function_graph' tracer to the\n'timerlat' tracer, s_start only calls graph_trace_close of the\n'function_graph' tracer to free 'iter->private', but does not set\nit to NULL. This provides an opportunity for 'event->funcs->trace()'\nto use an invalid 'iter->private'.\n\nTo fix this issue, set 'iter->private' to NULL immediately after\nfreeing it in graph_trace_close(), ensuring that an invalid pointer\nis not passed to other tracers. Additionally, clean up the unnecessary\n'iter->private = NULL' during each 'cat trace' when using wakeup and\nirqsoff tracers.\n\n [1] https://lore.kernel.org/all/20231112150030.84609-1-ryncsn@gmail.com/"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-04-16T14:11:53.958Z"}}}, "cveMetadata": {"cveId": "CVE-2025-22035", "state": "PUBLISHED", "dateUpdated": "2025-04-21T15:01:46.658Z", "dateReserved": "2024-12-29T08:45:45.809Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-04-16T14:11:53.958Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "71EE7896-7ADF-4518-840E-AFA5008A220C", "versionEndExcluding": "4.15", "versionStartIncluding": "4.14.324", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D51950EF-B814-4998-A0B2-65B014DDF4B1", "versionEndExcluding": "4.20", "versionStartIncluding": "4.19.293", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6E1C0F63-4CF8-4DBE-8382-68AAF5BA2EEF", "versionEndExcluding": "5.4.292", "versionStartIncluding": "5.4.255", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C6A39FE1-2EDE-4A5B-A6B8-1FF7FB12FCD7", "versionEndExcluding": "5.10.236", "versionStartIncluding": "5.10.193", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "954DCB85-1A70-4D6F-803D-F08554B92053", "versionEndExcluding": "5.15.180", "versionStartIncluding": "5.15.129", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "64F3AB12-D09C-4CC0-A1D0-80C64AE2F11C", "versionEndExcluding": "6.1.134", "versionStartIncluding": "6.1.50", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "043416BF-CC26-44F1-88BF-D9468ABD1929", "versionEndExcluding": "6.6.87", "versionStartIncluding": "6.4.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "26CAB76D-F00F-43CE-BEAD-7097F8FB1D6C", "versionEndExcluding": "6.12.23", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E7E864B0-8C00-4679-BA55-659B4C9C3AD3", "versionEndExcluding": "6.13.11", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FADAE5D8-4808-442C-B218-77B2CE8780A0", "versionEndExcluding": "6.14.2", "versionStartIncluding": "6.14", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix use-after-free in print_graph_function_flags during tracer switching\n\nKairui reported a UAF issue in print_graph_function_flags() during\nftrace stress testing [1]. This issue can be reproduced if puting a\n'mdelay(10)' after 'mutex_unlock(&trace_types_lock)' in s_start(),\nand executing the following script:\n\n $ echo function_graph > current_tracer\n $ cat trace > /dev/null &\n $ sleep 5 # Ensure the 'cat' reaches the 'mdelay(10)' point\n $ echo timerlat > current_tracer\n\nThe root cause lies in the two calls to print_graph_function_flags\nwithin print_trace_line during each s_show():\n\n * One through 'iter->trace->print_line()';\n * Another through 'event->funcs->trace()', which is hidden in\n print_trace_fmt() before print_trace_line returns.\n\nTracer switching only updates the former, while the latter continues\nto use the print_line function of the old tracer, which in the script\nabove is print_graph_function_flags.\n\nMoreover, when switching from the 'function_graph' tracer to the\n'timerlat' tracer, s_start only calls graph_trace_close of the\n'function_graph' tracer to free 'iter->private', but does not set\nit to NULL. This provides an opportunity for 'event->funcs->trace()'\nto use an invalid 'iter->private'.\n\nTo fix this issue, set 'iter->private' to NULL immediately after\nfreeing it in graph_trace_close(), ensuring that an invalid pointer\nis not passed to other tracers. Additionally, clean up the unnecessary\n'iter->private = NULL' during each 'cat trace' when using wakeup and\nirqsoff tracers.\n\n [1] https://lore.kernel.org/all/20231112150030.84609-1-ryncsn@gmail.com/"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tracing: Fix use-after-free en print_graph_function_flags durante el cambio de tracer Kairui inform\u00f3 de un problema de UAF en print_graph_function_flags() durante las pruebas de estr\u00e9s de ftrace [1]. Este problema se puede reproducir si se pone un 'mdelay(10)' despu\u00e9s de 'mutex_unlock(&trace_types_lock)' en s_start() y se ejecuta el siguiente script: $ echo function_graph > current_tracer $ cat trace > /dev/null & $ sleep 5 # Asegurarse de que 'cat' alcance el punto 'mdelay(10)' $ echo timerlat > current_tracer La causa ra\u00edz se encuentra en las dos llamadas a print_graph_function_flags dentro de print_trace_line durante cada s_show(): * Una a trav\u00e9s de 'iter->trace->print_line()'; * Otra funci\u00f3n mediante 'event->funcs->trace()', que est\u00e1 oculta en print_trace_fmt() antes del retorno de print_trace_line. Al cambiar de trazador, solo se actualiza el primero, mientras que el segundo contin\u00faa usando la funci\u00f3n print_line del trazador anterior, que en el script anterior es print_graph_function_flags. Adem\u00e1s, al cambiar del trazador 'function_graph' al trazador 'timerlat', s_start solo llama a graph_trace_close del trazador 'function_graph' para liberar 'iter->private', pero no lo establece en NULL. Esto permite que 'event->funcs->trace()' use un 'iter->private' no v\u00e1lido. Para solucionar este problema, establezca 'iter->private' en NULL inmediatamente despu\u00e9s de liberarlo en graph_trace_close(), lo que garantiza que no se pase un puntero no v\u00e1lido a otros trazadores. Adem\u00e1s, limpie el 'iter->private = NULL' innecesario durante cada 'cat trace' al usar los trazadores wakeup e irqsoff. [1] https://lore.kernel.org/all/20231112150030.84609-1-ryncsn@gmail.com/"}], "id": "CVE-2025-22035", "lastModified": "2025-04-25T18:43:50.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2025-04-16T15:15:56.110", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/099ef3385800828b74933a96c117574637c3fb3a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/42561fe62c3628ea3bc9623f64f047605e98857f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/70be951bc01e4a0e10d443f3510bb17426f257fb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7f81f27b1093e4895e87b74143c59c055c3b1906"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/81a85b12132c8ffe98f5ddbdc185481790aeaa1b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a2cce54c1748216535dda02e185d07a084be837e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c85efe6e13743cac6ba4ccf144cb91f44c86231a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/de7b309139f862a44379ecd96e93c9133c69f813"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f14752d66056d0c7bffe5092130409417d3baa70"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: tracing: Fix use-after-free in print_graph_function_flags during tracer switching", "id": "2360210", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2360210"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ntracing: Fix use-after-free in print_graph_function_flags during tracer switching\nKairui reported a UAF issue in print_graph_function_flags() during\nftrace stress testing [1]. This issue can be reproduced if puting a\n'mdelay(10)' after 'mutex_unlock(&trace_types_lock)' in s_start(),\nand executing the following script:\n$ echo function_graph > current_tracer\n$ cat trace > /dev/null &\n$ sleep 5 # Ensure the 'cat' reaches the 'mdelay(10)' point\n$ echo timerlat > current_tracer\nThe root cause lies in the two calls to print_graph_function_flags\nwithin print_trace_line during each s_show():\n* One through 'iter->trace->print_line()';\n* Another through 'event->funcs->trace()', which is hidden in\nprint_trace_fmt() before print_trace_line returns.\nTracer switching only updates the former, while the latter continues\nto use the print_line function of the old tracer, which in the script\nabove is print_graph_function_flags.\nMoreover, when switching from the 'function_graph' tracer to the\n'timerlat' tracer, s_start only calls graph_trace_close of the\n'function_graph' tracer to free 'iter->private', but does not set\nit to NULL. This provides an opportunity for 'event->funcs->trace()'\nto use an invalid 'iter->private'.\nTo fix this issue, set 'iter->private' to NULL immediately after\nfreeing it in graph_trace_close(), ensuring that an invalid pointer\nis not passed to other tracers. Additionally, clean up the unnecessary\n'iter->private = NULL' during each 'cat trace' when using wakeup and\nirqsoff tracers.\n[1] https://lore.kernel.org/all/20231112150030.84609-1-ryncsn@gmail.com/"], "name": "CVE-2025-22035", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-04-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-22035\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-22035\nhttps://lore.kernel.org/linux-cve-announce/2025041658-CVE-2025-22035-b50c@gregkh/T"], "threat_severity": "Moderate"}