CVE-2025-38502

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-38502", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.022Z", "datePublished": "2025-08-16T09:34:25.135Z", "dateUpdated": "2026-10-15T21:52:17.683Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:02:29.487Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix oob access in cgroup local storage\n\nLonial reported that an out-of-bounds access in cgroup local storage\ncan be crafted via tail calls. Given two programs each utilizing a\ncgroup local storage with a different value size, and one program\ndoing a tail call into the other. The verifier will validate each of\nthe indivial programs just fine. However, in the runtime context\nthe bpf_cg_run_ctx holds an bpf_prog_array_item which contains the\nBPF program as well as any cgroup local storage flavor the program\nuses. Helpers such as bpf_get_local_storage() pick this up from the\nruntime context:\n\n ctx = container_of(current->bpf_ctx, struct bpf_cg_run_ctx, run_ctx);\n storage = ctx->prog_item->cgroup_storage[stype];\n\n if (stype == BPF_CGROUP_STORAGE_SHARED)\n ptr = &READ_ONCE(storage->buf)->data[0];\n else\n ptr = this_cpu_ptr(storage->percpu_buf);\n\nFor the second program which was called from the originally attached\none, this means bpf_get_local_storage() will pick up the former\nprogram's map, not its own. With mismatching sizes, this can result\nin an unintended out-of-bounds access.\n\nTo fix this issue, we need to extend bpf_map_owner with an array of\nstorage_cookie[] to match on i) the exact maps from the original\nprogram if the second program was using bpf_get_local_storage(), or\nii) allow the tail call combination if the second program was not\nusing any of the cgroup local storage maps."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerability is reached through the bpf() syscall (loading maps/programs and invoking them via BPF_PROG_TEST_RUN or an attached hook), which requires local access to the system.\nAC:L - Exploitation is fully deterministic \u2014 the attacker crafts both programs, chooses the mismatched storage value sizes, and controls the tail-call chain; there is no race or attacker-uncontrolled condition.\nPR:L - The cgroup-storage maps, the prog-array, and the CGROUP_SKB program are all creatable/loadable without CAP_BPF, and BPF_PROG_TEST_RUN executes them with no capability check, so a basic unprivileged local user can trigger it on a kernel with unprivileged BPF enabled.\nUI:N - The attacker loads and runs the BPF programs itself; no action by any other user is required.\nS:U - The out-of-bounds access corrupts kernel heap memory within the same kernel security authority; it does not cross a VM, IOMMU, or sandbox boundary.\nC:H - The mismatched sizes yield a controllable out-of-bounds read of adjacent kernel heap memory (bpf_get_local_storage returns a map-value pointer read by the program), enabling disclosure of sensitive kernel data.\nI:H - The returned pointer is a writable RET_PTR_TO_MAP_VALUE, so program B writes past A's smaller buffer, giving a controllable heap out-of-bounds write suitable for corruption and privilege escalation.\nA:H - The out-of-bounds heap read/write readily corrupts adjacent kernel structures, causing oops/panic and denial of service."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/linux/bpf.h", "kernel/bpf/core.c"], "versions": [{"version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "lessThan": "c1c74584b9b4043c52e41fec415226e582d266a3", "status": "affected", "versionType": "git"}, {"version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "lessThan": "66da7cee78590259b400e51a70622ccd41da7bb2", "status": "affected", "versionType": "git"}, {"version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "lessThan": "7acfa07c585e3d7a64654d38f0a5c762877d0b9b", "status": "affected", "versionType": "git"}, {"version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "lessThan": "41688d1fc5d163a6c2c0e95c0419e2cb31a44648", "status": "affected", "versionType": "git"}, {"version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "lessThan": "19341d5c59e8c7e8528e40f8663e99d67810473c", "status": "affected", "versionType": "git"}, {"version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "lessThan": "abad3d0bad72a52137e0c350c59542d75ae4f513", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/linux/bpf.h", "kernel/bpf/core.c"], "versions": [{"version": "5.9", "status": "affected"}, {"version": "0", "lessThan": "5.9", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.192", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.151", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.105", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.46", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16.1", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17", "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": "5.9", "versionEndExcluding": "5.15.192"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.1.151"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.6.105"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.12.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.16.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9", "versionEndExcluding": "6.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c1c74584b9b4043c52e41fec415226e582d266a3"}, {"url": "https://git.kernel.org/stable/c/66da7cee78590259b400e51a70622ccd41da7bb2"}, {"url": "https://git.kernel.org/stable/c/7acfa07c585e3d7a64654d38f0a5c762877d0b9b"}, {"url": "https://git.kernel.org/stable/c/41688d1fc5d163a6c2c0e95c0419e2cb31a44648"}, {"url": "https://git.kernel.org/stable/c/19341d5c59e8c7e8528e40f8663e99d67810473c"}, {"url": "https://git.kernel.org/stable/c/abad3d0bad72a52137e0c350c59542d75ae4f513"}], "title": "bpf: Fix oob access in cgroup local storage", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T17:39:11.518Z"}}, {"x_adpType": "supplier", "providerMetadata": {"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-05-12T12:05:13.025Z"}, "affected": [{"vendor": "Siemens", "product": "SIMATIC CN 4100", "versions": [{"status": "affected", "version": "0", "lessThan": "V5.0", "versionType": "custom"}], "defaultStatus": "unknown"}], "references": [{"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-38502", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T21:51:03.238888Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T21:52:17.683Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T17:39:11.518Z"}}, {"affected": [{"vendor": "Siemens", "product": "SIMATIC CN 4100", "versions": [{"status": "affected", "version": "0", "lessThan": "V5.0", "versionType": "custom"}], "defaultStatus": "unknown"}], "x_adpType": "supplier", "references": [{"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"}], "providerMetadata": {"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-05-12T12:05:13.025Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-38502", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T21:51:03.238888Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T21:51:04.283Z"}}], "cna": {"title": "bpf: Fix oob access in cgroup local storage", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 7.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerability is reached through the bpf() syscall (loading maps/programs and invoking them via BPF_PROG_TEST_RUN or an attached hook), which requires local access to the system.\nAC:L - Exploitation is fully deterministic \u2014 the attacker crafts both programs, chooses the mismatched storage value sizes, and controls the tail-call chain; there is no race or attacker-uncontrolled condition.\nPR:L - The cgroup-storage maps, the prog-array, and the CGROUP_SKB program are all creatable/loadable without CAP_BPF, and BPF_PROG_TEST_RUN executes them with no capability check, so a basic unprivileged local user can trigger it on a kernel with unprivileged BPF enabled.\nUI:N - The attacker loads and runs the BPF programs itself; no action by any other user is required.\nS:U - The out-of-bounds access corrupts kernel heap memory within the same kernel security authority; it does not cross a VM, IOMMU, or sandbox boundary.\nC:H - The mismatched sizes yield a controllable out-of-bounds read of adjacent kernel heap memory (bpf_get_local_storage returns a map-value pointer read by the program), enabling disclosure of sensitive kernel data.\nI:H - The returned pointer is a writable RET_PTR_TO_MAP_VALUE, so program B writes past A's smaller buffer, giving a controllable heap out-of-bounds write suitable for corruption and privilege escalation.\nA:H - The out-of-bounds heap read/write readily corrupts adjacent kernel structures, causing oops/panic and denial of service."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "lessThan": "c1c74584b9b4043c52e41fec415226e582d266a3", "versionType": "git"}, {"status": "affected", "version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "lessThan": "66da7cee78590259b400e51a70622ccd41da7bb2", "versionType": "git"}, {"status": "affected", "version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "lessThan": "7acfa07c585e3d7a64654d38f0a5c762877d0b9b", "versionType": "git"}, {"status": "affected", "version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "lessThan": "41688d1fc5d163a6c2c0e95c0419e2cb31a44648", "versionType": "git"}, {"status": "affected", "version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "lessThan": "19341d5c59e8c7e8528e40f8663e99d67810473c", "versionType": "git"}, {"status": "affected", "version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "lessThan": "abad3d0bad72a52137e0c350c59542d75ae4f513", "versionType": "git"}], "programFiles": ["include/linux/bpf.h", "kernel/bpf/core.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.9"}, {"status": "unaffected", "version": "0", "lessThan": "5.9", "versionType": "semver"}, {"status": "unaffected", "version": "5.15.192", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.151", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.105", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.46", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.16.1", "versionType": "semver", "lessThanOrEqual": "6.16.*"}, {"status": "unaffected", "version": "6.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["include/linux/bpf.h", "kernel/bpf/core.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/c1c74584b9b4043c52e41fec415226e582d266a3"}, {"url": "https://git.kernel.org/stable/c/66da7cee78590259b400e51a70622ccd41da7bb2"}, {"url": "https://git.kernel.org/stable/c/7acfa07c585e3d7a64654d38f0a5c762877d0b9b"}, {"url": "https://git.kernel.org/stable/c/41688d1fc5d163a6c2c0e95c0419e2cb31a44648"}, {"url": "https://git.kernel.org/stable/c/19341d5c59e8c7e8528e40f8663e99d67810473c"}, {"url": "https://git.kernel.org/stable/c/abad3d0bad72a52137e0c350c59542d75ae4f513"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix oob access in cgroup local storage\n\nLonial reported that an out-of-bounds access in cgroup local storage\ncan be crafted via tail calls. Given two programs each utilizing a\ncgroup local storage with a different value size, and one program\ndoing a tail call into the other. The verifier will validate each of\nthe indivial programs just fine. However, in the runtime context\nthe bpf_cg_run_ctx holds an bpf_prog_array_item which contains the\nBPF program as well as any cgroup local storage flavor the program\nuses. Helpers such as bpf_get_local_storage() pick this up from the\nruntime context:\n\n ctx = container_of(current->bpf_ctx, struct bpf_cg_run_ctx, run_ctx);\n storage = ctx->prog_item->cgroup_storage[stype];\n\n if (stype == BPF_CGROUP_STORAGE_SHARED)\n ptr = &READ_ONCE(storage->buf)->data[0];\n else\n ptr = this_cpu_ptr(storage->percpu_buf);\n\nFor the second program which was called from the originally attached\none, this means bpf_get_local_storage() will pick up the former\nprogram's map, not its own. With mismatching sizes, this can result\nin an unintended out-of-bounds access.\n\nTo fix this issue, we need to extend bpf_map_owner with an array of\nstorage_cookie[] to match on i) the exact maps from the original\nprogram if the second program was using bpf_get_local_storage(), or\nii) allow the tail call combination if the second program was not\nusing any of the cgroup local storage maps."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.192", "versionStartIncluding": "5.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.151", "versionStartIncluding": "5.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.105", "versionStartIncluding": "5.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.46", "versionStartIncluding": "5.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.16.1", "versionStartIncluding": "5.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.17", "versionStartIncluding": "5.9"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:02:29.487Z"}}}, "cveMetadata": {"cveId": "CVE-2025-38502", "state": "PUBLISHED", "dateUpdated": "2026-10-15T21:52:17.683Z", "dateReserved": "2025-04-16T04:51:24.022Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-08-16T09:34:25.135Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["include/linux/bpf.h", "kernel/bpf/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c1c74584b9b4043c52e41fec415226e582d266a3", "status": "affected", "version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "versionType": "git"}, {"lessThan": "66da7cee78590259b400e51a70622ccd41da7bb2", "status": "affected", "version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "versionType": "git"}, {"lessThan": "7acfa07c585e3d7a64654d38f0a5c762877d0b9b", "status": "affected", "version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "versionType": "git"}, {"lessThan": "41688d1fc5d163a6c2c0e95c0419e2cb31a44648", "status": "affected", "version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "versionType": "git"}, {"lessThan": "19341d5c59e8c7e8528e40f8663e99d67810473c", "status": "affected", "version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "versionType": "git"}, {"lessThan": "abad3d0bad72a52137e0c350c59542d75ae4f513", "status": "affected", "version": "7d9c3427894fe70d1347b4820476bf37736d2ff0", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["include/linux/bpf.h", "kernel/bpf/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.9"}, {"lessThan": "5.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.192", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.151", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.105", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.46", "versionType": "semver"}, {"lessThanOrEqual": "6.16.*", "status": "unaffected", "version": "6.16.1", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.17", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"affectedData": [{"defaultStatus": "unknown", "product": "SIMATIC CN 4100", "vendor": "Siemens", "versions": [{"lessThan": "V5.0", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "49EEF657-80AD-46E2-8CA5-C96EFA630696", "versionEndExcluding": "5.15.192", "versionStartIncluding": "5.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BC2D0B88-F133-4143-B91D-0A439AA143C0", "versionEndExcluding": "6.1.151", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B9364B0C-6B18-422E-8254-73EF0E856875", "versionEndExcluding": "6.6.105", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F7E2B332-E920-4CAC-B400-288602DB6F16", "versionEndExcluding": "6.12.46", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8B9C94BD-76DF-42B9-9A0B-04DACF7CBE8F", "versionEndExcluding": "6.16.1", "versionStartIncluding": "6.13", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simatic_cn_4100_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "AA9D4F6E-9336-4026-B485-4227C861B356", "versionEndExcluding": "5.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simatic_cn_4100:-:*:*:*:*:*:*:*", "matchCriteriaId": "92619F5F-3679-4424-9455-3285FF1EF2F1", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix oob access in cgroup local storage\n\nLonial reported that an out-of-bounds access in cgroup local storage\ncan be crafted via tail calls. Given two programs each utilizing a\ncgroup local storage with a different value size, and one program\ndoing a tail call into the other. The verifier will validate each of\nthe indivial programs just fine. However, in the runtime context\nthe bpf_cg_run_ctx holds an bpf_prog_array_item which contains the\nBPF program as well as any cgroup local storage flavor the program\nuses. Helpers such as bpf_get_local_storage() pick this up from the\nruntime context:\n\n ctx = container_of(current->bpf_ctx, struct bpf_cg_run_ctx, run_ctx);\n storage = ctx->prog_item->cgroup_storage[stype];\n\n if (stype == BPF_CGROUP_STORAGE_SHARED)\n ptr = &READ_ONCE(storage->buf)->data[0];\n else\n ptr = this_cpu_ptr(storage->percpu_buf);\n\nFor the second program which was called from the originally attached\none, this means bpf_get_local_storage() will pick up the former\nprogram's map, not its own. With mismatching sizes, this can result\nin an unintended out-of-bounds access.\n\nTo fix this issue, we need to extend bpf_map_owner with an array of\nstorage_cookie[] to match on i) the exact maps from the original\nprogram if the second program was using bpf_get_local_storage(), or\nii) allow the tail call combination if the second program was not\nusing any of the cgroup local storage maps."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: Correcci\u00f3n del acceso fuera de los l\u00edmites en el almacenamiento local de cgroup Lonial inform\u00f3 que se puede manipular un acceso fuera de los l\u00edmites en el almacenamiento local de cgroup mediante llamadas de cola. Dados dos programas, cada uno utilizando un almacenamiento local de cgroup con un tama\u00f1o de valor diferente, y un programa realizando una llamada de cola en el otro. El verificador validar\u00e1 cada uno de los programas individuales sin problemas. Sin embargo, en el contexto de tiempo de ejecuci\u00f3n, bpf_cg_run_ctx contiene un bpf_prog_array_item que contiene el programa BPF, as\u00ed como cualquier sabor de almacenamiento local de cgroup que use el programa. Los ayudantes como bpf_get_local_storage() recogen esto del contexto de tiempo de ejecuci\u00f3n: ctx = container_of(current->bpf_ctx, struct bpf_cg_run_ctx, run_ctx); storage = ctx->prog_item->cgroup_storage[stype]; if (stype == BPF_CGROUP_STORAGE_SHARED) ptr = &READ_ONCE(storage->buf)->data[0]; else ptr = this_cpu_ptr(storage->percpu_buf); Para el segundo programa llamado desde el programa adjunto original, esto significa que bpf_get_local_storage() tomar\u00e1 el mapa del programa anterior, no el suyo. Con tama\u00f1os no coincidentes, esto puede resultar en un acceso fuera de los l\u00edmites no deseado. Para solucionar este problema, necesitamos extender bpf_map_owner con una matriz de storage_cookie[] para que coincida con i) los mapas exactos del programa original si el segundo programa usaba bpf_get_local_storage(), o ii) permitir la combinaci\u00f3n de llamadas de cola si el segundo programa no usaba ninguno de los mapas de almacenamiento local de cgroup."}], "id": "CVE-2025-38502", "lastModified": "2026-10-15T22:18:43.353", "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": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-38502", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-15T21:51:03.238888Z", "version": "2.0.3"}}]}, "published": "2025-08-16T10:15:25.653", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/19341d5c59e8c7e8528e40f8663e99d67810473c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/41688d1fc5d163a6c2c0e95c0419e2cb31a44648"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/66da7cee78590259b400e51a70622ccd41da7bb2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7acfa07c585e3d7a64654d38f0a5c762877d0b9b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/abad3d0bad72a52137e0c350c59542d75ae4f513"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c1c74584b9b4043c52e41fec415226e582d266a3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "tags": ["Third Party Advisory"], "url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: bpf: Fix oob access in cgroup local storage", "id": "2388911", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2388911"}, "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"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbpf: Fix oob access in cgroup local storage\nLonial reported that an out-of-bounds access in cgroup local storage\ncan be crafted via tail calls. Given two programs each utilizing a\ncgroup local storage with a different value size, and one program\ndoing a tail call into the other. The verifier will validate each of\nthe indivial programs just fine. However, in the runtime context\nthe bpf_cg_run_ctx holds an bpf_prog_array_item which contains the\nBPF program as well as any cgroup local storage flavor the program\nuses. Helpers such as bpf_get_local_storage() pick this up from the\nruntime context:\nctx = container_of(current->bpf_ctx, struct bpf_cg_run_ctx, run_ctx);\nstorage = ctx->prog_item->cgroup_storage[stype];\nif (stype == BPF_CGROUP_STORAGE_SHARED)\nptr = &READ_ONCE(storage->buf)->data[0];\nelse\nptr = this_cpu_ptr(storage->percpu_buf);\nFor the second program which was called from the originally attached\none, this means bpf_get_local_storage() will pick up the former\nprogram's map, not its own. With mismatching sizes, this can result\nin an unintended out-of-bounds access.\nTo fix this issue, we need to extend bpf_map_owner with an array of\nstorage_cookie[] to match on i) the exact maps from the original\nprogram if the second program was using bpf_get_local_storage(), or\nii) allow the tail call combination if the second program was not\nusing any of the cgroup local storage maps."], "name": "CVE-2025-38502", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "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": "2025-08-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38502\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38502\nhttps://lore.kernel.org/linux-cve-announce/2025081629-CVE-2025-38502-ef25@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-08-18T20:50:00.907711+00:00", "updated": "2025-08-18T20:50:00.907780+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}