{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-38588", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-06-18T19:36:34.929Z", "datePublished": "2024-06-19T13:37:43.262Z", "dateUpdated": "2025-05-04T09:14:44.284Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:14:44.284Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix possible use-after-free issue in ftrace_location()\n\nKASAN reports a bug:\n\n BUG: KASAN: use-after-free in ftrace_location+0x90/0x120\n Read of size 8 at addr ffff888141d40010 by task insmod/424\n CPU: 8 PID: 424 Comm: insmod Tainted: G W 6.9.0-rc2+\n [...]\n Call Trace:\n <TASK>\n dump_stack_lvl+0x68/0xa0\n print_report+0xcf/0x610\n kasan_report+0xb5/0xe0\n ftrace_location+0x90/0x120\n register_kprobe+0x14b/0xa40\n kprobe_init+0x2d/0xff0 [kprobe_example]\n do_one_initcall+0x8f/0x2d0\n do_init_module+0x13a/0x3c0\n load_module+0x3082/0x33d0\n init_module_from_file+0xd2/0x130\n __x64_sys_finit_module+0x306/0x440\n do_syscall_64+0x68/0x140\n entry_SYSCALL_64_after_hwframe+0x71/0x79\n\nThe root cause is that, in lookup_rec(), ftrace record of some address\nis being searched in ftrace pages of some module, but those ftrace pages\nat the same time is being freed in ftrace_release_mod() as the\ncorresponding module is being deleted:\n\n CPU1 | CPU2\n register_kprobes() { | delete_module() {\n check_kprobe_address_safe() { |\n arch_check_ftrace_location() { |\n ftrace_location() { |\n lookup_rec() // USE! | ftrace_release_mod() // Free!\n\nTo fix this issue:\n 1. Hold rcu lock as accessing ftrace pages in ftrace_location_range();\n 2. Use ftrace_location_range() instead of lookup_rec() in\n ftrace_location();\n 3. Call synchronize_rcu() before freeing any ftrace pages both in\n ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem()."}], "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": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "eea46baf145150910ba134f75a67106ba2222c1b", "status": "affected", "versionType": "git"}, {"version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "1880a324af1c95940a7c954b6b937e86844a33bd", "status": "affected", "versionType": "git"}, {"version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "8ea8ef5e42173560ac510e92a1cc797ffeea8831", "status": "affected", "versionType": "git"}, {"version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "dbff5f0bfb2416b8b55c105ddbcd4f885e98fada", "status": "affected", "versionType": "git"}, {"version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "7b4881da5b19f65709f5c18c1a4d8caa2e496461", "status": "affected", "versionType": "git"}, {"version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "66df065b3106964e667b37bf8f7e55ec69d0c1f6", "status": "affected", "versionType": "git"}, {"version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "31310e373f4c8c74e029d4326b283e757edabc0b", "status": "affected", "versionType": "git"}, {"version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "e60b613df8b6253def41215402f72986fee3fc8d", "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": "3.7", "status": "affected"}, {"version": "0", "lessThan": "3.7", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.286", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.227", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.162", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.93", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.33", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8.12", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.9.3", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10", "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": "3.7", "versionEndExcluding": "5.4.286"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "5.10.227"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "5.15.162"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.1.93"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.6.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.8.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.9.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.10"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/eea46baf145150910ba134f75a67106ba2222c1b"}, {"url": "https://git.kernel.org/stable/c/1880a324af1c95940a7c954b6b937e86844a33bd"}, {"url": "https://git.kernel.org/stable/c/8ea8ef5e42173560ac510e92a1cc797ffeea8831"}, {"url": "https://git.kernel.org/stable/c/dbff5f0bfb2416b8b55c105ddbcd4f885e98fada"}, {"url": "https://git.kernel.org/stable/c/7b4881da5b19f65709f5c18c1a4d8caa2e496461"}, {"url": "https://git.kernel.org/stable/c/66df065b3106964e667b37bf8f7e55ec69d0c1f6"}, {"url": "https://git.kernel.org/stable/c/31310e373f4c8c74e029d4326b283e757edabc0b"}, {"url": "https://git.kernel.org/stable/c/e60b613df8b6253def41215402f72986fee3fc8d"}], "title": "ftrace: Fix possible use-after-free issue in ftrace_location()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-416", "lang": "en", "description": "CWE-416 Use After Free"}]}], "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": {"timestamp": "2024-10-30T19:17:19.872138Z", "id": "CVE-2024-38588", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-30T19:18:45.225Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:12:25.894Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/8ea8ef5e42173560ac510e92a1cc797ffeea8831", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/dbff5f0bfb2416b8b55c105ddbcd4f885e98fada", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/7b4881da5b19f65709f5c18c1a4d8caa2e496461", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/66df065b3106964e667b37bf8f7e55ec69d0c1f6", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/31310e373f4c8c74e029d4326b283e757edabc0b", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e60b613df8b6253def41215402f72986fee3fc8d", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/8ea8ef5e42173560ac510e92a1cc797ffeea8831", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/dbff5f0bfb2416b8b55c105ddbcd4f885e98fada", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/7b4881da5b19f65709f5c18c1a4d8caa2e496461", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/66df065b3106964e667b37bf8f7e55ec69d0c1f6", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/31310e373f4c8c74e029d4326b283e757edabc0b", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/e60b613df8b6253def41215402f72986fee3fc8d", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:12:25.894Z"}}, {"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-2024-38588", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-10-30T19:17:19.872138Z"}}}], "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": "2024-06-20T19:45:32.765Z"}}], "cna": {"title": "ftrace: Fix possible use-after-free issue in ftrace_location()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "eea46baf145150910ba134f75a67106ba2222c1b", "versionType": "git"}, {"status": "affected", "version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "1880a324af1c95940a7c954b6b937e86844a33bd", "versionType": "git"}, {"status": "affected", "version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "8ea8ef5e42173560ac510e92a1cc797ffeea8831", "versionType": "git"}, {"status": "affected", "version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "dbff5f0bfb2416b8b55c105ddbcd4f885e98fada", "versionType": "git"}, {"status": "affected", "version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "7b4881da5b19f65709f5c18c1a4d8caa2e496461", "versionType": "git"}, {"status": "affected", "version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "66df065b3106964e667b37bf8f7e55ec69d0c1f6", "versionType": "git"}, {"status": "affected", "version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "31310e373f4c8c74e029d4326b283e757edabc0b", "versionType": "git"}, {"status": "affected", "version": "ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b", "lessThan": "e60b613df8b6253def41215402f72986fee3fc8d", "versionType": "git"}], "programFiles": ["kernel/trace/ftrace.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.7"}, {"status": "unaffected", "version": "0", "lessThan": "3.7", "versionType": "semver"}, {"status": "unaffected", "version": "5.4.286", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.227", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.162", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.93", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.33", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.8.12", "versionType": "semver", "lessThanOrEqual": "6.8.*"}, {"status": "unaffected", "version": "6.9.3", "versionType": "semver", "lessThanOrEqual": "6.9.*"}, {"status": "unaffected", "version": "6.10", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["kernel/trace/ftrace.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/eea46baf145150910ba134f75a67106ba2222c1b"}, {"url": "https://git.kernel.org/stable/c/1880a324af1c95940a7c954b6b937e86844a33bd"}, {"url": "https://git.kernel.org/stable/c/8ea8ef5e42173560ac510e92a1cc797ffeea8831"}, {"url": "https://git.kernel.org/stable/c/dbff5f0bfb2416b8b55c105ddbcd4f885e98fada"}, {"url": "https://git.kernel.org/stable/c/7b4881da5b19f65709f5c18c1a4d8caa2e496461"}, {"url": "https://git.kernel.org/stable/c/66df065b3106964e667b37bf8f7e55ec69d0c1f6"}, {"url": "https://git.kernel.org/stable/c/31310e373f4c8c74e029d4326b283e757edabc0b"}, {"url": "https://git.kernel.org/stable/c/e60b613df8b6253def41215402f72986fee3fc8d"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix possible use-after-free issue in ftrace_location()\n\nKASAN reports a bug:\n\n BUG: KASAN: use-after-free in ftrace_location+0x90/0x120\n Read of size 8 at addr ffff888141d40010 by task insmod/424\n CPU: 8 PID: 424 Comm: insmod Tainted: G W 6.9.0-rc2+\n [...]\n Call Trace:\n <TASK>\n dump_stack_lvl+0x68/0xa0\n print_report+0xcf/0x610\n kasan_report+0xb5/0xe0\n ftrace_location+0x90/0x120\n register_kprobe+0x14b/0xa40\n kprobe_init+0x2d/0xff0 [kprobe_example]\n do_one_initcall+0x8f/0x2d0\n do_init_module+0x13a/0x3c0\n load_module+0x3082/0x33d0\n init_module_from_file+0xd2/0x130\n __x64_sys_finit_module+0x306/0x440\n do_syscall_64+0x68/0x140\n entry_SYSCALL_64_after_hwframe+0x71/0x79\n\nThe root cause is that, in lookup_rec(), ftrace record of some address\nis being searched in ftrace pages of some module, but those ftrace pages\nat the same time is being freed in ftrace_release_mod() as the\ncorresponding module is being deleted:\n\n CPU1 | CPU2\n register_kprobes() { | delete_module() {\n check_kprobe_address_safe() { |\n arch_check_ftrace_location() { |\n ftrace_location() { |\n lookup_rec() // USE! | ftrace_release_mod() // Free!\n\nTo fix this issue:\n 1. Hold rcu lock as accessing ftrace pages in ftrace_location_range();\n 2. Use ftrace_location_range() instead of lookup_rec() in\n ftrace_location();\n 3. Call synchronize_rcu() before freeing any ftrace pages both in\n ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem()."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.286", "versionStartIncluding": "3.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.227", "versionStartIncluding": "3.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.162", "versionStartIncluding": "3.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.93", "versionStartIncluding": "3.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.33", "versionStartIncluding": "3.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.8.12", "versionStartIncluding": "3.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.9.3", "versionStartIncluding": "3.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10", "versionStartIncluding": "3.7"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:14:44.284Z"}}}, "cveMetadata": {"cveId": "CVE-2024-38588", "state": "PUBLISHED", "dateUpdated": "2025-05-04T09:14:44.284Z", "dateReserved": "2024-06-18T19:36:34.929Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-06-19T13:37:43.262Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "40927E07-D355-4FC7-8DC6-C969BC9C7CE6", "versionEndExcluding": "6.1.93", "versionStartIncluding": "3.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FCE796DF-3B50-4DC6-BAE5-95271068FC9E", "versionEndExcluding": "6.6.33", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "80550309-67AB-4FD1-AC07-3DED5C4F01B2", "versionEndExcluding": "6.8.12", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E07124C1-19E8-4D21-828D-9932A01D3011", "versionEndExcluding": "6.9.3", "versionStartIncluding": "6.9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix possible use-after-free issue in ftrace_location()\n\nKASAN reports a bug:\n\n BUG: KASAN: use-after-free in ftrace_location+0x90/0x120\n Read of size 8 at addr ffff888141d40010 by task insmod/424\n CPU: 8 PID: 424 Comm: insmod Tainted: G W 6.9.0-rc2+\n [...]\n Call Trace:\n <TASK>\n dump_stack_lvl+0x68/0xa0\n print_report+0xcf/0x610\n kasan_report+0xb5/0xe0\n ftrace_location+0x90/0x120\n register_kprobe+0x14b/0xa40\n kprobe_init+0x2d/0xff0 [kprobe_example]\n do_one_initcall+0x8f/0x2d0\n do_init_module+0x13a/0x3c0\n load_module+0x3082/0x33d0\n init_module_from_file+0xd2/0x130\n __x64_sys_finit_module+0x306/0x440\n do_syscall_64+0x68/0x140\n entry_SYSCALL_64_after_hwframe+0x71/0x79\n\nThe root cause is that, in lookup_rec(), ftrace record of some address\nis being searched in ftrace pages of some module, but those ftrace pages\nat the same time is being freed in ftrace_release_mod() as the\ncorresponding module is being deleted:\n\n CPU1 | CPU2\n register_kprobes() { | delete_module() {\n check_kprobe_address_safe() { |\n arch_check_ftrace_location() { |\n ftrace_location() { |\n lookup_rec() // USE! | ftrace_release_mod() // Free!\n\nTo fix this issue:\n 1. Hold rcu lock as accessing ftrace pages in ftrace_location_range();\n 2. Use ftrace_location_range() instead of lookup_rec() in\n ftrace_location();\n 3. Call synchronize_rcu() before freeing any ftrace pages both in\n ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ftrace: Solucionar posible problema de use-after-free en ftrace_location() KASAN informa un error: ERROR: KASAN: use-after-free en ftrace_location+0x90/0x120 Lectura de tama\u00f1o 8 en addr ffff888141d40010 por tarea insmod/424 CPU: 8 PID: 424 Comm: insmod Tainted: GW 6.9.0-rc2+ [...] Rastreo de llamadas: dump_stack_lvl+0x68/0xa0 print_report+0xcf/0x610 kasan_report+0xb5/ 0xe0 ftrace_location+0x90/0x120 Register_kprobe+0x14b/0xa40 kprobe_init+0x2d/0xff0 [kprobe_example] do_one_initcall+0x8f/0x2d0 do_init_module+0x13a/0x3c0 load_module+0x3082/0x33d0 init_module_from _file+0xd2/0x130 __x64_sys_finit_module+0x306/0x440 do_syscall_64+0x68/0x140 entrada_SYSCALL_64_after_hwframe +0x71/0x79 La causa principal es que, en lookup_rec(), el registro ftrace de alguna direcci\u00f3n se busca en las p\u00e1ginas ftrace de alg\u00fan m\u00f3dulo, pero esas p\u00e1ginas ftrace al mismo tiempo se liberan en ftrace_release_mod() como lo est\u00e1 el m\u00f3dulo correspondiente. siendo eliminado: CPU1 | CPU2 registro_kprobes() { | eliminar_m\u00f3dulo() { check_kprobe_address_safe() { | arch_check_ftrace_location() { | ftrace_ubicaci\u00f3n() { | lookup_rec() // \u00a1UTILIZAR! | ftrace_release_mod() // \u00a1Gratis! Para solucionar este problema: 1. Mantenga presionado rcu lock mientras accede a las p\u00e1ginas de ftrace en ftrace_location_range(); 2. Utilice ftrace_location_range() en lugar de lookup_rec() en ftrace_location(); 3. Llame a sincronizar_rcu() antes de liberar cualquier p\u00e1gina ftrace tanto en ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem()."}], "id": "CVE-2024-38588", "lastModified": "2024-11-21T09:26:25.347", "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": "nvd@nist.gov", "type": "Primary"}, {"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": "2024-06-19T14:15:18.907", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1880a324af1c95940a7c954b6b937e86844a33bd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/31310e373f4c8c74e029d4326b283e757edabc0b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/66df065b3106964e667b37bf8f7e55ec69d0c1f6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7b4881da5b19f65709f5c18c1a4d8caa2e496461"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8ea8ef5e42173560ac510e92a1cc797ffeea8831"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dbff5f0bfb2416b8b55c105ddbcd4f885e98fada"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e60b613df8b6253def41215402f72986fee3fc8d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eea46baf145150910ba134f75a67106ba2222c1b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/31310e373f4c8c74e029d4326b283e757edabc0b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/66df065b3106964e667b37bf8f7e55ec69d0c1f6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7b4881da5b19f65709f5c18c1a4d8caa2e496461"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8ea8ef5e42173560ac510e92a1cc797ffeea8831"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dbff5f0bfb2416b8b55c105ddbcd4f885e98fada"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e60b613df8b6253def41215402f72986fee3fc8d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: ftrace: Fix possible use-after-free issue in ftrace_location()", "id": "2293400", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293400"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.2", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nftrace: Fix possible use-after-free issue in ftrace_location()\nKASAN reports a bug:\nBUG: KASAN: use-after-free in ftrace_location+0x90/0x120\nRead of size 8 at addr ffff888141d40010 by task insmod/424\nCPU: 8 PID: 424 Comm: insmod Tainted: G W 6.9.0-rc2+\n[...]\nCall Trace:\n<TASK>\ndump_stack_lvl+0x68/0xa0\nprint_report+0xcf/0x610\nkasan_report+0xb5/0xe0\nftrace_location+0x90/0x120\nregister_kprobe+0x14b/0xa40\nkprobe_init+0x2d/0xff0 [kprobe_example]\ndo_one_initcall+0x8f/0x2d0\ndo_init_module+0x13a/0x3c0\nload_module+0x3082/0x33d0\ninit_module_from_file+0xd2/0x130\n__x64_sys_finit_module+0x306/0x440\ndo_syscall_64+0x68/0x140\nentry_SYSCALL_64_after_hwframe+0x71/0x79\nThe root cause is that, in lookup_rec(), ftrace record of some address\nis being searched in ftrace pages of some module, but those ftrace pages\nat the same time is being freed in ftrace_release_mod() as the\ncorresponding module is being deleted:\nCPU1 | CPU2\nregister_kprobes() { | delete_module() {\ncheck_kprobe_address_safe() { |\narch_check_ftrace_location() { |\nftrace_location() { |\nlookup_rec() // USE! | ftrace_release_mod() // Free!\nTo fix this issue:\n1. Hold rcu lock as accessing ftrace pages in ftrace_location_range();\n2. Use ftrace_location_range() instead of lookup_rec() in\nftrace_location();\n3. Call synchronize_rcu() before freeing any ftrace pages both in\nftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem()."], "name": "CVE-2024-38588", "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": "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"}], "public_date": "2024-06-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-38588\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-38588\nhttps://lore.kernel.org/linux-cve-announce/2024061950-CVE-2024-38588-f908@gregkh/T"], "threat_severity": "Low"}

{}