{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-56611 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-56611 is a medium-severity vulnerability in Linux kernel, published on 27 Dec 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-2024-56611 and fix it if it is affected.\n\nWhat it is: CVE-2024-56611 is a medium-severity vulnerability in Linux kernel, published on 27 Dec 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-2024-56611 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-2024-56611/ (Markdown: https://insights.sbomify.com/CVE-2024-56611/index.md)","id":"CVE-2024-56611","markdown":"https://insights.sbomify.com/CVE-2024-56611/index.md","name":"CVE-2024-56611","record":{"aliases":["AZL-54806","AZL-54872","BELL-CVE-2024-56611","DEBIAN-CVE-2024-56611","GHSA-vmhm-g2hv-x7wj","ROOT-OS-DEBIAN-11-CVE-2024-56611","ROOT-OS-DEBIAN-12-CVE-2024-56611","ROOT-OS-UBUNTU-2204-CVE-2024-56611","UBUNTU-CVE-2024-56611"],"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 local attacker can trigger a kernel crash by exploiting a null pointer dereference in the memory policy migration code.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"cisa-adp","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-476","name":"NULL Pointer Dereference"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/mempolicy: fix migrate_to_node() assuming there is at least one VMA in a MM\n\nWe currently assume that there is at least one VMA in a MM, which isn't\ntrue.\n\nSo we might end up having find_vma() return NULL, to then de-reference\nNULL.  So properly handle find_vma() returning NULL.\n\nThis fixes the report:\n\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 1 UID: 0 PID: 6021 Comm: syz-executor284 Not tainted 6.12.0-rc7-syzkaller-00187-gf868cd251776 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024\nRIP: 0010:migrate_to_node mm/mempolicy.c:1090 [inline]\nRIP: 0010:do_migrate_pages+0x403/0x6f0 mm/mempolicy.c:1194\nCode: ...\nRSP: 0018:ffffc9000375fd08 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffffc9000375fd78 RCX: 0000000000000000\nRDX: ffff88807e171300 RSI: dffffc0000000000 RDI: ffff88803390c044\nRBP: ffff88807e171428 R08: 0000000000000014 R09: fffffbfff2039ef1\nR10: ffffffff901cf78f R11: 0000000000000000 R12: 0000000000000003\nR13: ffffc9000375fe90 R14: ffffc9000375fe98 R15: ffffc9000375fdf8\nFS:  00005555919e1380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00005555919e1ca8 CR3: 000000007f12a000 CR4: 00000000003526f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n kernel_migrate_pages+0x5b2/0x750 mm/mempolicy.c:1709\n __do_sys_migrate_pages mm/mempolicy.c:1727 [inline]\n __se_sys_migrate_pages mm/mempolicy.c:1723 [inline]\n __x64_sys_migrate_pages+0x96/0x100 mm/mempolicy.c:1723\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\n[akpm@linux-foundation.org: add unlikely()]","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":"mm/mempolicy: fix migrate_to_node() assuming there is at least one VMA in a MM","id":"CVE-2024-56611","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2024"},"n_packages":0,"n_references":3,"next":{"headline":"mm/gup: handle NULL pages in unpin_user_pages()","id":"CVE-2024-56612"},"packages":[],"prev":{"headline":"kcsan: Turn report_filterlist_lock into a raw_spinlock","id":"CVE-2024-56610"},"products":["Linux"],"published":"2024-12-27","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 local attacker can trigger a kernel crash by exploiting a null pointer dereference in the memory policy migration code.","url":"https://insights.sbomify.com/CVE-2024-56611/"}