{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-22094 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-22094 is a high-severity vulnerability in Linux kernel, published on 16 Apr 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2025-22094 and fix it if it is affected.\n\nWhat it is: CVE-2025-22094 is a high-severity vulnerability in Linux kernel, published on 16 Apr 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2025-22094 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2025-22094/ (Markdown: https://insights.sbomify.com/CVE-2025-22094/index.md)","id":"CVE-2025-22094","markdown":"https://insights.sbomify.com/CVE-2025-22094/index.md","name":"CVE-2025-22094","record":{"aliases":["BELL-CVE-2025-22094","GHSA-2879-fhf4-rjj6","ROOT-OS-DEBIAN-13-CVE-2025-22094","UBUNTU-CVE-2025-22094"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A missing reference count in the Linux kernel powerpc perf subsystem allows unloading a module while active, causing a null pointer dereference and kernel panic.","user_interaction":"required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.3,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/perf: Fix ref-counting on the PMU 'vpa_pmu'\n\nCommit 176cda0619b6 (\"powerpc/perf: Add perf interface to expose vpa\ncounters\") introduced 'vpa_pmu' to expose Book3s-HV nested APIv2 provided\nL1\u003c-\u003eL2 context switch latency counters to L1 user-space via\nperf-events. However the newly introduced PMU named 'vpa_pmu' doesn't\nassign ownership of the PMU to the module 'vpa_pmu'. Consequently the\nmodule 'vpa_pmu' can be unloaded while one of the perf-events are still\nactive, which can lead to kernel oops and panic of the form below on a\nPseries-LPAR:\n\nBUG: Kernel NULL pointer dereference on read at 0x00000058\n\u003csnip\u003e\n NIP [c000000000506cb8] event_sched_out+0x40/0x258\n LR [c00000000050e8a4] __perf_remove_from_context+0x7c/0x2b0\n Call Trace:\n [c00000025fc3fc30] [c00000025f8457a8] 0xc00000025f8457a8 (unreliable)\n [c00000025fc3fc80] [fffffffffffffee0] 0xfffffffffffffee0\n [c00000025fc3fcd0] [c000000000501e70] event_function+0xa8/0x120\n\u003csnip\u003e\n Kernel panic - not syncing: Aiee, killing interrupt handler!\n\nFix this by adding the module ownership to 'vpa_pmu' so that the module\n'vpa_pmu' is ref-counted and prevented from being unloaded when perf-events\nare initialized.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"powerpc/perf: Fix ref-counting on the PMU 'vpa_pmu'","id":"CVE-2025-22094","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":3,"next":{"headline":"PCI: brcmstb: Fix error path after a call to regulator_bulk_get()","id":"CVE-2025-22095"},"packages":[],"prev":{"headline":"drm/amd/display: avoid NPD when ASIC does not support DMUB","id":"CVE-2025-22093"},"products":["Linux"],"published":"2025-04-16","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A missing reference count in the Linux kernel powerpc perf subsystem allows unloading a module while active, causing a null pointer dereference and kernel panic.","url":"https://insights.sbomify.com/CVE-2025-22094/"}