358 lines
17 KiB
JSON
358 lines
17 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-2025-68742",
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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": "2025-12-24T10:30:51.030Z",
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"datePublished": "2025-12-24T12:09:39.341Z",
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"dateUpdated": "2026-11-10T12:38:19.852Z"
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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": "2026-05-11T21:52:28.112Z"
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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: Fix invalid prog->stats access when update_effective_progs fails\n\nSyzkaller triggers an invalid memory access issue following fault\ninjection in update_effective_progs. The issue can be described as\nfollows:\n\n__cgroup_bpf_detach\n update_effective_progs\n compute_effective_progs\n bpf_prog_array_alloc <-- fault inject\n purge_effective_progs\n /* change to dummy_bpf_prog */\n array->items[index] = &dummy_bpf_prog.prog\n\n---softirq start---\n__do_softirq\n ...\n __cgroup_bpf_run_filter_skb\n __bpf_prog_run_save_cb\n bpf_prog_run\n stats = this_cpu_ptr(prog->stats)\n /* invalid memory access */\n flags = u64_stats_update_begin_irqsave(&stats->syncp)\n---softirq end---\n\n static_branch_dec(&cgroup_bpf_enabled_key[atype])\n\nThe reason is that fault injection caused update_effective_progs to fail\nand then changed the original prog into dummy_bpf_prog.prog in\npurge_effective_progs. Then a softirq came, and accessing the members of\ndummy_bpf_prog.prog in the softirq triggers invalid mem access.\n\nTo fix it, skip updating stats when stats is NULL."
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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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"include/linux/filter.h",
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"kernel/bpf/syscall.c"
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],
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"versions": [
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},
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}
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},
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"programFiles": [
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"include/linux/filter.h",
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"kernel/bpf/syscall.c"
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],
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"versions": [
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{
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"version": "5.1",
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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": "5.1",
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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": "6.1.160",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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},
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{
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"version": "6.6.120",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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},
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{
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"version": "6.12.63",
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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": "6.17.13",
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"lessThanOrEqual": "6.17.*",
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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": "6.18.2",
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"lessThanOrEqual": "6.18.*",
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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": "6.19",
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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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"nodes": [
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.1",
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"versionEndExcluding": "6.1.160"
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/93d1964773ff513c9bd530f7686d3e48b786fa6b"
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},
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{
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"url": "https://git.kernel.org/stable/c/bf2c990b012100610c0f1ec5c4ea434da2d080c2"
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},
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{
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"url": "https://git.kernel.org/stable/c/539137e3038ce6f953efd72110110f03c14c7d97"
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},
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{
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"url": "https://git.kernel.org/stable/c/56905bb70c8b88421709bb4e32fcba617aa37d41"
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},
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{
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"url": "https://git.kernel.org/stable/c/2579c356ccd35d06238b176e4b460978186d804b"
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},
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{
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"url": "https://git.kernel.org/stable/c/7dc211c1159d991db609bdf4b0fb9033c04adcbc"
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}
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],
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"title": "bpf: Fix invalid prog->stats access when update_effective_progs fails",
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"x_generator": {
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