{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-26783",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/vmscan: fix a bug calling wakeup_kswapd() with a wrong zone index\n\nWith numa balancing on, when a numa system is running where a numa node\ndoesn't have its local memory so it has no managed zones, the following\noops has been observed.  It's because wakeup_kswapd() is called with a\nwrong zone index, -1.  Fixed it by checking the index before calling\nwakeup_kswapd().\n\n> BUG: unable to handle page fault for address: 00000000000033f3\n> #PF: supervisor read access in kernel mode\n> #PF: error_code(0x0000) - not-present page\n> PGD 0 P4D 0\n> Oops: 0000 [#1] PREEMPT SMP NOPTI\n> CPU: 2 PID: 895 Comm: masim Not tainted 6.6.0-dirty #255\n> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n>    rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\n> RIP: 0010:wakeup_kswapd (./linux/mm/vmscan.c:7812)\n> Code: (omitted)\n> RSP: 0000:ffffc90004257d58 EFLAGS: 00010286\n> RAX: ffffffffffffffff RBX: ffff88883fff0480 RCX: 0000000000000003\n> RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88883fff0480\n> RBP: ffffffffffffffff R08: ff0003ffffffffff R09: ffffffffffffffff\n> R10: ffff888106c95540 R11: 0000000055555554 R12: 0000000000000003\n> R13: 0000000000000000 R14: 0000000000000000 R15: ffff88883fff0940\n> FS:  00007fc4b8124740(0000) GS:ffff888827c00000(0000) knlGS:0000000000000000\n> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n> CR2: 00000000000033f3 CR3: 000000026cc08004 CR4: 0000000000770ee0\n> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n> PKRU: 55555554\n> Call Trace:\n>  <TASK>\n> ? __die\n> ? page_fault_oops\n> ? __pte_offset_map_lock\n> ? exc_page_fault\n> ? asm_exc_page_fault\n> ? wakeup_kswapd\n> migrate_misplaced_page\n> __handle_mm_fault\n> handle_mm_fault\n> do_user_addr_fault\n> exc_page_fault\n> asm_exc_page_fault\n> RIP: 0033:0x55b897ba0808\n> Code: (omitted)\n> RSP: 002b:00007ffeefa821a0 EFLAGS: 00010287\n> RAX: 000055b89983acd0 RBX: 00007ffeefa823f8 RCX: 000055b89983acd0\n> RDX: 00007fc2f8122010 RSI: 0000000000020000 RDI: 000055b89983acd0\n> RBP: 00007ffeefa821a0 R08: 0000000000000037 R09: 0000000000000075\n> R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000\n> R13: 00007ffeefa82410 R14: 000055b897ba5dd8 R15: 00007fc4b8340000\n>  </TASK>"
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "c574bbe91703",
                                            "version_value": "d6159bd4c005"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "5.18",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "5.18",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.6.22",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.7.9",
                                                        "lessThanOrEqual": "6.7.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.8",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
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    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/d6159bd4c00594249e305bfe02304c67c506264e",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/d6159bd4c00594249e305bfe02304c67c506264e"
            },
            {
                "url": "https://git.kernel.org/stable/c/bdd21eed8b72f9e28d6c279f6db258e090c79080",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/bdd21eed8b72f9e28d6c279f6db258e090c79080"
            },
            {
                "url": "https://git.kernel.org/stable/c/2774f256e7c0219e2b0a0894af1c76bdabc4f974",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/2774f256e7c0219e2b0a0894af1c76bdabc4f974"
            }
        ]
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    "generator": {
        "engine": "bippy-a5840b7849dd"
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}