{"cve":"CVE-2024-56611","nvd":{"published":"2024-12-27T15:15:20.587","modified":"2026-10-30T13:17:47.500","status":"Modified","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 <TASK>\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()]","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/091c1dd2d4df6edd1beebe0e5863d4034ade9572","https://git.kernel.org/stable/c/42d9fe2adf8613f9eea1f0c2619c9e2611eae0ea","https://git.kernel.org/stable/c/482bafbbebcaf286579f93494ba6899030a6ad47","https://git.kernel.org/stable/c/a13b2b9b0b0b04612c7d81e3b3dfb485c5f7abc3"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-30T13:47:47.119061695+00:00"},"epss":{"cve":"CVE-2024-56611","score":0.00206,"percentile":0.10688,"date":"2026-10-30"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}