{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-58070", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-03-06T15:52:09.182Z", "datePublished": "2025-03-06T15:54:10.166Z", "dateUpdated": "2026-08-05T11:47:33.069Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:47:33.069Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: bpf_local_storage: Always use bpf_mem_alloc in PREEMPT_RT\n\nIn PREEMPT_RT, kmalloc(GFP_ATOMIC) is still not safe in non preemptible\ncontext. bpf_mem_alloc must be used in PREEMPT_RT. This patch is\nto enforce bpf_mem_alloc in the bpf_local_storage when CONFIG_PREEMPT_RT\nis enabled.\n\n[ 35.118559] BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48\n[ 35.118566] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1832, name: test_progs\n[ 35.118569] preempt_count: 1, expected: 0\n[ 35.118571] RCU nest depth: 1, expected: 1\n[ 35.118577] INFO: lockdep is turned off.\n ...\n[ 35.118647] __might_resched+0x433/0x5b0\n[ 35.118677] rt_spin_lock+0xc3/0x290\n[ 35.118700] ___slab_alloc+0x72/0xc40\n[ 35.118723] __kmalloc_noprof+0x13f/0x4e0\n[ 35.118732] bpf_map_kzalloc+0xe5/0x220\n[ 35.118740] bpf_selem_alloc+0x1d2/0x7b0\n[ 35.118755] bpf_local_storage_update+0x2fa/0x8b0\n[ 35.118784] bpf_sk_storage_get_tracing+0x15a/0x1d0\n[ 35.118791] bpf_prog_9a118d86fca78ebb_trace_inet_sock_set_state+0x44/0x66\n[ 35.118795] bpf_trace_run3+0x222/0x400\n[ 35.118820] __bpf_trace_inet_sock_set_state+0x11/0x20\n[ 35.118824] trace_inet_sock_set_state+0x112/0x130\n[ 35.118830] inet_sk_state_store+0x41/0x90\n[ 35.118836] tcp_set_state+0x3b3/0x640\n\nThere is no need to adjust the gfp_flags passing to the\nbpf_mem_cache_alloc_flags() which only honors the GFP_KERNEL.\nThe verifier has ensured GFP_KERNEL is passed only in sleepable context.\n\nIt has been an old issue since the first introduction of the\nbpf_local_storage ~5 years ago, so this patch targets the bpf-next.\n\nbpf_mem_alloc is needed to solve it, so the Fixes tag is set\nto the commit when bpf_mem_alloc was first used in the bpf_local_storage." } ], "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 - Triggering requires creating a BPF sk_storage/inode_storage map and attaching a BPF program via the bpf(2) syscall on the target machine. Per kernel scoring guidance, BPF is Local; the tracepoint that fires (inet_sock_set_state) can be driven by remote traffic, but the vulnerable code is only reachable after local program load.\nAC:L - There is no race and no memory-layout dependency — a BPF program calling bpf_sk_storage_get() with F_CREATE from a tracepoint/kprobe deterministically enters the slab allocator with preemption disabled every single time. PREEMPT_RT is fully mainline since 6.12 and is the standard configuration for the automotive, industrial-control and robotics deployments this subsystem serves, so the attacker simply selects such a target.\nPR:L - An unprivileged local user with delegated BPF access (BPF token in a user namespace, the supported container delegation model for CAP_BPF/CAP_PERFMON) can create the storage map and load the tracing program. This matches the established PR:L scoring for BPF-reachable kernel flaws in this CNA's prior assignments.\nUI:N - The attacker loads and triggers its own BPF program and generates the socket state transitions itself; no action by any other user or administrator is needed.\nS:U - The fault and its consequences are confined to the kernel's own security authority — no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Blocking on an rtmutex inside a preempt-disabled RCU-sched read section lets a grace period elapse mid-probe, so the tracepoint's deferred free can release tp_funcs while it is still being walked — a use-after-free on attacker-groomed heap memory that yields a kernel read primitive.\nI:H - The same premature-free window plus the corruption of per-CPU state that the preempt_disable was protecting (bpf_prog_active, kprobe control block, cpu_slab) gives a write primitive suitable for control-flow hijacking, matching the C:H/I:H treatment of the prior PREEMPT_RT BPF flaw CVE-2025-21825.\nA:H - At minimum the kernel emits a \"BUG: sleeping function called from invalid context\" splat on every trigger, and the uncontended-debug-off path schedules while atomic, which can deadlock or hang the machine and destroys the latency guarantees that define an RT deployment." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "kernel/bpf/bpf_local_storage.c" ], "versions": [ { "version": "08a7ce384e33e53e0732c500a8af67a73f8fceca", "lessThan": "3392fa605d7c5708c5fbe02e4fbdac547c3b7352", "status": "affected", "versionType": "git" }, { "version": "08a7ce384e33e53e0732c500a8af67a73f8fceca", "lessThan": "b0027500000dfcb8ee952557d565064cea22c43e", "status": "affected", "versionType": "git" }, { "version": "08a7ce384e33e53e0732c500a8af67a73f8fceca", "lessThan": "c1d398a3af7e59d7fef351c84fed7ebb575d1f1a", "status": "affected", "versionType": "git" }, { "version": "08a7ce384e33e53e0732c500a8af67a73f8fceca", "lessThan": "8eef6ac4d70eb1f0099fff93321d90ce8fa49ee1", "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/bpf/bpf_local_storage.c" ], "versions": [ { "version": "6.4", "status": "affected" }, { "version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.76", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.13", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13.2", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.14", "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": "6.4", "versionEndExcluding": "6.6.76" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.12.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.13.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.14" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/3392fa605d7c5708c5fbe02e4fbdac547c3b7352" }, { "url": "https://git.kernel.org/stable/c/b0027500000dfcb8ee952557d565064cea22c43e" }, { "url": "https://git.kernel.org/stable/c/c1d398a3af7e59d7fef351c84fed7ebb575d1f1a" }, { "url": "https://git.kernel.org/stable/c/8eef6ac4d70eb1f0099fff93321d90ce8fa49ee1" } ], "title": "bpf: bpf_local_storage: Always use bpf_mem_alloc in PREEMPT_RT", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2024-58070", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T19:27:34.371519Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-667", "description": "CWE-667 Improper Locking" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:36:36.533Z" } } ] } }