{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-42068", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-29T15:50:41.168Z", "datePublished": "2024-07-29T15:52:32.538Z", "dateUpdated": "2026-08-05T11:35:27.123Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:35:27.123Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Take return from set_memory_ro() into account with bpf_prog_lock_ro()\n\nset_memory_ro() can fail, leaving memory unprotected.\n\nCheck its return and take it into account as an error." } ], "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 - BPF program loading is reachable only through local syscalls — `setsockopt(SO_ATTACH_FILTER)`, `seccomp()`/`prctl(PR_SET_SECCOMP)`, and `bpf(BPF_PROG_LOAD)`. No remote peer can drive `bpf_prog_select_runtime()`.\nAC:L - A local attacker can repeatedly load interpreted BPF programs in a loop while driving the machine into reclaim pressure, which is the condition that makes `split_large_page()`'s page-table allocation fail and return -ENOMEM out of `set_memory_ro()`. Memory pressure is attacker-influenceable rather than a state outside the attacker's control, so the higher-severity value applies.\nPR:L - `SO_ATTACH_FILTER` in net/core/sock.c:1465 has no capability check at all, and the seccomp path is gated only by `no_new_privs`, which any unprivileged task can set — so an ordinary user, including one inside a container or sandbox, reaches the vulnerable code with zero capabilities.\nUI:N - The attacker loads and attaches the BPF program entirely within its own process; no other user or victim action is involved.\nS:U - The unprotected memory and the resulting compromise are both within the kernel's own security authority — this is standard kernel privilege escalation, not a hypervisor or IOMMU boundary crossing.\nC:H - Kernel memory that the hardening design requires to be read-only remains writable, and the introducing commit 60a3b2253c41 states that a modifiable interpreter image yields \"arbitrary read/write memory access\"; rewriting the `insnsi[]` stream turns the BPF interpreter into an arbitrary kernel-memory read primitive.\nI:H - The unprotected region contains both the executed eBPF bytecode and the `bpf_func` function pointer, so the lost `set_memory_ro()` gives an attacker a path to arbitrary kernel writes and arbitrary function calls — exactly the integrity guarantee this code exists to enforce.\nA:H - A BPF program whose instruction stream or `bpf_func` pointer can be altered executes attacker-chosen kernel control flow, trivially producing an oops or panic, so the availability impact of the lost protection is a full kernel crash." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "include/linux/filter.h", "kernel/bpf/core.c", "kernel/bpf/verifier.c" ], "versions": [ { "version": "60a3b2253c413cf601783b070507d7dd6620c954", "lessThan": "a359696856ca9409fb97655c5a8ef0f549cb6e03", "status": "affected", "versionType": "git" }, { "version": "60a3b2253c413cf601783b070507d7dd6620c954", "lessThan": "e4f602e3ff749ba770bf8ff10196e18358de6720", "status": "affected", "versionType": "git" }, { "version": "60a3b2253c413cf601783b070507d7dd6620c954", "lessThan": "05412471beba313ecded95aa17b25fe84bb2551a", "status": "affected", "versionType": "git" }, { "version": "60a3b2253c413cf601783b070507d7dd6620c954", "lessThan": "7d2cc63eca0c993c99d18893214abf8f85d566d8", "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/filter.h", "kernel/bpf/core.c", "kernel/bpf/verifier.c" ], "versions": [ { "version": "3.18", "status": "affected" }, { "version": "0", "lessThan": "3.18", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.162", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.97", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.8", "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": "3.18", "versionEndExcluding": "5.15.162" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.1.97" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.9.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.10" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a359696856ca9409fb97655c5a8ef0f549cb6e03" }, { "url": "https://git.kernel.org/stable/c/e4f602e3ff749ba770bf8ff10196e18358de6720" }, { "url": "https://git.kernel.org/stable/c/05412471beba313ecded95aa17b25fe84bb2551a" }, { "url": "https://git.kernel.org/stable/c/7d2cc63eca0c993c99d18893214abf8f85d566d8" } ], "title": "bpf: Take return from set_memory_ro() into account with bpf_prog_lock_ro()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/a359696856ca9409fb97655c5a8ef0f549cb6e03", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/e4f602e3ff749ba770bf8ff10196e18358de6720", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/fdd411af8178edc6b7bf260f8fa4fba1bedd0a6d", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/e3540e5a7054d6daaf9a1415a48aacb092112a89", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/05412471beba313ecded95aa17b25fe84bb2551a", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/7d2cc63eca0c993c99d18893214abf8f85d566d8", "tags": [ "x_transferred" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:01:05.442Z" } }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-42068", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T16:19:52.600102Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:08.404Z" } } ] } }