122 lines
6.5 KiB
JSON
122 lines
6.5 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-2025-68216",
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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": "2025-12-16T13:41:40.256Z",
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"datePublished": "2025-12-16T13:57:11.303Z",
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"dateUpdated": "2026-05-11T21:48:58.041Z"
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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": "2026-05-11T21:48:58.041Z"
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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\nLoongArch: BPF: Disable trampoline for kernel module function trace\n\nThe current LoongArch BPF trampoline implementation is incompatible\nwith tracing functions in kernel modules. This causes several severe\nand user-visible problems:\n\n* The `bpf_selftests/module_attach` test fails consistently.\n* Kernel lockup when a BPF program is attached to a module function [1].\n* Critical kernel modules like WireGuard experience traffic disruption\n when their functions are traced with fentry [2].\n\nGiven the severity and the potential for other unknown side-effects, it\nis safest to disable the feature entirely for now. This patch prevents\nthe BPF subsystem from allowing trampoline attachments to kernel module\nfunctions on LoongArch.\n\nThis is a temporary mitigation until the core issues in the trampoline\ncode for kernel module handling can be identified and fixed.\n\n[root@fedora bpf]# ./test_progs -a module_attach -v\nbpf_testmod.ko is already unloaded.\nLoading bpf_testmod.ko...\nSuccessfully loaded bpf_testmod.ko.\ntest_module_attach:PASS:skel_open 0 nsec\ntest_module_attach:PASS:set_attach_target 0 nsec\ntest_module_attach:PASS:set_attach_target_explicit 0 nsec\ntest_module_attach:PASS:skel_load 0 nsec\nlibbpf: prog 'handle_fentry': failed to attach: -ENOTSUPP\nlibbpf: prog 'handle_fentry': failed to auto-attach: -ENOTSUPP\ntest_module_attach:FAIL:skel_attach skeleton attach failed: -524\nSummary: 0/0 PASSED, 0 SKIPPED, 1 FAILED\nSuccessfully unloaded bpf_testmod.ko.\n\n[1]: https://lore.kernel.org/loongarch/CAK3+h2wDmpC-hP4u4pJY8T-yfKyk4yRzpu2LMO+C13FMT58oqQ@mail.gmail.com/\n[2]: https://lore.kernel.org/loongarch/CAK3+h2wYcpc+OwdLDUBvg2rF9rvvyc5amfHT-KcFaK93uoELPg@mail.gmail.com/"
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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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"arch/loongarch/net/bpf_jit.c"
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],
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"versions": [
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{
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"version": "f9b6b41f0cf31791541cea9644ddbedb46465801",
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"lessThan": "44eb3849378be5f72b8be03edbacbdcd6f5eade4",
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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": "f9b6b41f0cf31791541cea9644ddbedb46465801",
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"lessThan": "677e6123e3d24adaa252697dc89740f2ac07664e",
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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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"arch/loongarch/net/bpf_jit.c"
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],
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"versions": [
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{
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"version": "6.17",
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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": "6.17",
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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": "6.17.10",
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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",
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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": "6.17",
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"versionEndExcluding": "6.17.10"
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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": "6.17",
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"versionEndExcluding": "6.18"
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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/44eb3849378be5f72b8be03edbacbdcd6f5eade4"
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},
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{
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"url": "https://git.kernel.org/stable/c/677e6123e3d24adaa252697dc89740f2ac07664e"
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}
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],
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"title": "LoongArch: BPF: Disable trampoline for kernel module function trace",
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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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} |