{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-53656 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53656 is a medium-severity vulnerability in Linux kernel, published on 7 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-53656 and fix it if it is affected.\n\nWhat it is: CVE-2023-53656 is a medium-severity vulnerability in Linux kernel, published on 7 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-53656 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-2023-53656/ (Markdown: https://insights.sbomify.com/CVE-2023-53656/index.md)","id":"CVE-2023-53656","markdown":"https://insights.sbomify.com/CVE-2023-53656/index.md","name":"CVE-2023-53656","record":{"aliases":["BELL-CVE-2023-53656","DEBIAN-CVE-2023-53656","GHSA-3f5v-f3mc-6rj8","UBUNTU-CVE-2023-53656"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"low_privilege","summary":"A race condition in the HiSilicon PCIe PMU driver can cause a kernel deadlock during CPU teardown, leading to a denial of service.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/perf: hisi: Don't migrate perf to the CPU going to teardown\n\nThe driver needs to migrate the perf context if the current using CPU going\nto teardown. By the time calling the cpuhp::teardown() callback the\ncpu_online_mask() hasn't updated yet and still includes the CPU going to\nteardown. In current driver's implementation we may migrate the context\nto the teardown CPU and leads to the below calltrace:\n\n...\n[  368.104662][  T932] task:cpuhp/0         state:D stack:    0 pid:   15 ppid:     2 flags:0x00000008\n[  368.113699][  T932] Call trace:\n[  368.116834][  T932]  __switch_to+0x7c/0xbc\n[  368.120924][  T932]  __schedule+0x338/0x6f0\n[  368.125098][  T932]  schedule+0x50/0xe0\n[  368.128926][  T932]  schedule_preempt_disabled+0x18/0x24\n[  368.134229][  T932]  __mutex_lock.constprop.0+0x1d4/0x5dc\n[  368.139617][  T932]  __mutex_lock_slowpath+0x1c/0x30\n[  368.144573][  T932]  mutex_lock+0x50/0x60\n[  368.148579][  T932]  perf_pmu_migrate_context+0x84/0x2b0\n[  368.153884][  T932]  hisi_pcie_pmu_offline_cpu+0x90/0xe0 [hisi_pcie_pmu]\n[  368.160579][  T932]  cpuhp_invoke_callback+0x2a0/0x650\n[  368.165707][  T932]  cpuhp_thread_fun+0xe4/0x190\n[  368.170316][  T932]  smpboot_thread_fn+0x15c/0x1a0\n[  368.175099][  T932]  kthread+0x108/0x13c\n[  368.179012][  T932]  ret_from_fork+0x10/0x18\n...\n\nUse function cpumask_any_but() to find one correct active cpu to fixes\nthis issue.","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":"drivers/perf: hisi: Don't migrate perf to the CPU going to teardown","id":"CVE-2023-53656","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"race_condition","year":"2023"},"n_packages":0,"n_references":4,"next":{"headline":"ice: Don't tx before switchdev is fully configured","id":"CVE-2023-53657"},"packages":[],"prev":{"headline":"rcu: Avoid stack overflow due to __rcu_irq_enter_check_tick() being kprobe-ed","id":"CVE-2023-53655"},"products":["Linux"],"published":"2025-10-07","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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A race condition in the HiSilicon PCIe PMU driver can cause a kernel deadlock during CPU teardown, leading to a denial of service.","url":"https://insights.sbomify.com/CVE-2023-53656/"}