242 lines
14 KiB
JSON
242 lines
14 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2024-58070",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-03-06T15:52:09.182Z",
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"datePublished": "2025-03-06T15:54:10.166Z",
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"dateUpdated": "2026-08-05T11:47:33.069Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T11:47:33.069Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"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."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/bpf/bpf_local_storage.c"
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],
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"versions": [
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{
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"version": "08a7ce384e33e53e0732c500a8af67a73f8fceca",
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"lessThan": "3392fa605d7c5708c5fbe02e4fbdac547c3b7352",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "08a7ce384e33e53e0732c500a8af67a73f8fceca",
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"lessThan": "b0027500000dfcb8ee952557d565064cea22c43e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "08a7ce384e33e53e0732c500a8af67a73f8fceca",
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"lessThan": "c1d398a3af7e59d7fef351c84fed7ebb575d1f1a",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "08a7ce384e33e53e0732c500a8af67a73f8fceca",
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"lessThan": "8eef6ac4d70eb1f0099fff93321d90ce8fa49ee1",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/bpf/bpf_local_storage.c"
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],
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"versions": [
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{
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"version": "6.4",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.4",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.76",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.13",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.13.2",
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"lessThanOrEqual": "6.13.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.14",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.4",
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"versionEndExcluding": "6.6.76"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.4",
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"versionEndExcluding": "6.12.13"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.4",
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"versionEndExcluding": "6.13.2"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.4",
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"versionEndExcluding": "6.14"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/3392fa605d7c5708c5fbe02e4fbdac547c3b7352"
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},
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{
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"url": "https://git.kernel.org/stable/c/b0027500000dfcb8ee952557d565064cea22c43e"
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},
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{
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"url": "https://git.kernel.org/stable/c/c1d398a3af7e59d7fef351c84fed7ebb575d1f1a"
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},
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{
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"url": "https://git.kernel.org/stable/c/8eef6ac4d70eb1f0099fff93321d90ce8fa49ee1"
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}
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],
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"title": "bpf: bpf_local_storage: Always use bpf_mem_alloc in PREEMPT_RT",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "NONE"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2024-58070",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2025-10-01T19:27:34.371519Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-667",
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"description": "CWE-667 Improper Locking"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2025-10-01T19:36:36.533Z"
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}
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}
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]
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}
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} |