{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-49856 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-49856 is a medium-severity denial of service vulnerability in Linux kernel, published on 21 Oct 2024. 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-2024-49856 and fix it if it is affected.\n\nWhat it is: CVE-2024-49856 is a medium-severity denial of service vulnerability in Linux kernel, published on 21 Oct 2024. 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-2024-49856 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-2024-49856/ (Markdown: https://insights.sbomify.com/CVE-2024-49856/index.md)","id":"CVE-2024-49856","markdown":"https://insights.sbomify.com/CVE-2024-49856/index.md","name":"CVE-2024-49856","record":{"aliases":["AZL-50709","AZL-50963","BELL-CVE-2024-49856","DEBIAN-CVE-2024-49856","GHSA-333m-q4jm-qjq4","UBUNTU-CVE-2024-49856"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A deadlock in the Linux kernel SGX NUMA node search causes a soft lockup when EPC sections are unavailable, requiring specific firmware configurations.","user_interaction":"not_required","vuln_class":"denial_of_service"},"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":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/sgx: Fix deadlock in SGX NUMA node search\n\nWhen the current node doesn't have an EPC section configured by firmware\nand all other EPC sections are used up, CPU can get stuck inside the\nwhile loop that looks for an available EPC page from remote nodes\nindefinitely, leading to a soft lockup. Note how nid_of_current will\nnever be equal to nid in that while loop because nid_of_current is not\nset in sgx_numa_mask.\n\nAlso worth mentioning is that it's perfectly fine for the firmware not\nto setup an EPC section on a node. While setting up an EPC section on\neach node can enhance performance, it is not a requirement for\nfunctionality.\n\nRework the loop to start and end on *a* node that has SGX memory. This\navoids the deadlock looking for the current SGX-lacking node to show up\nin the loop when it never will.","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":"x86/sgx: Fix deadlock in SGX NUMA node search","id":"CVE-2024-49856","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2024"},"n_packages":0,"n_references":6,"next":{"headline":"wifi: iwlwifi: mvm: set the cipher for secured NDP ranging","id":"CVE-2024-49857"},"packages":[],"prev":{"headline":"nbd: fix race between timeout and normal completion","id":"CVE-2024-49855"},"products":["Linux"],"published":"2024-10-21","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A deadlock in the Linux kernel SGX NUMA node search causes a soft lockup when EPC sections are unavailable, requiring specific firmware configurations.","url":"https://insights.sbomify.com/CVE-2024-49856/"}