{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-53107", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-11-19T17:17:24.992Z", "datePublished": "2024-12-02T13:44:39.811Z", "dateUpdated": "2026-08-05T11:43:45.543Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:43:45.543Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args()\n\nThe \"arg->vec_len\" variable is a u64 that comes from the user at the start\nof the function. The \"arg->vec_len * sizeof(struct page_region))\"\nmultiplication can lead to integer wrapping. Use size_mul() to avoid\nthat.\n\nAlso the size_add/mul() functions work on unsigned long so for 32bit\nsystems we need to ensure that \"arg->vec_len\" fits in an unsigned long." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerability is reached only through the PAGEMAP_SCAN ioctl on /proc//pagemap, which requires a local process on the system. There is no network-facing consumer of this interface.\nAC:L - Triggering is fully deterministic — the attacker simply passes a crafted vec_len (e.g. 2^61, or 0x1_0000_0001) in the pm_scan_arg struct; no race, timing window, or uncontrollable memory state is involved, and the attacker shapes both the slab allocation size and the overflow contents via its own VMA layout.\nPR:L - Any unprivileged local user can open /proc/self/pagemap, since proc_mem_open(PTRACE_MODE_READ) always permits self-access and no capability is checked on the PAGEMAP_SCAN path. CONFIG_PROC_PAGE_MONITOR is enabled by default.\nUI:N - The attacking process performs the entire sequence itself — open its own pagemap file and issue one ioctl. No victim action or cooperation is needed.\nS:U - The corruption stays within the kernel of the affected system and the calling process's own address space; no VM, IOMMU, or other security-authority boundary is crossed.\nC:H - The defeated access_ok range check plus the resulting unbounded slab out-of-bounds write past a 24-byte kmalloc object lets an attacker corrupt adjacent slab objects (pointers, lengths, credentials), a classic heap-overflow primitive readily leveraged for arbitrary kernel memory disclosure.\nI:H - The vec_buf_len underflow in pagemap_scan_push_range yields a repeatable out-of-bounds heap write with partially attacker-shaped 24-byte payloads, giving an arbitrary-write primitive suitable for control-flow hijack and privilege escalation.\nA:H - The same input path produces an immediate kernel oops by dereferencing ZERO_SIZE_PTR (write at address 0x10) when kmalloc_array(0, 24) is used, and the slab overflow reliably panics the kernel on any hardened/allocator-checked configuration." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/proc/task_mmu.c" ], "versions": [ { "version": "52526ca7fdb905a768a93f8faa418e9b988fc34b", "lessThan": "adee03f8903c58a6a559f21388a430211fac8ce9", "status": "affected", "versionType": "git" }, { "version": "52526ca7fdb905a768a93f8faa418e9b988fc34b", "lessThan": "669b0cb81e4e4e78cff77a5b367c7f70c0c6c05e", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/proc/task_mmu.c" ], "versions": [ { "version": "6.7", "status": "affected" }, { "version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.10", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.11.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.12" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/adee03f8903c58a6a559f21388a430211fac8ce9" }, { "url": "https://git.kernel.org/stable/c/669b0cb81e4e4e78cff77a5b367c7f70c0c6c05e" } ], "title": "fs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2024-53107", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T20:10:51.003579Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-190", "description": "CWE-190 Integer Overflow or Wraparound" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T20:17:11.772Z" } } ] } }