{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49395", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.562Z", "datePublished": "2025-02-26T02:11:25.676Z", "dateUpdated": "2026-05-11T18:58:55.326Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:58:55.326Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\num: Fix out-of-bounds read in LDT setup\n\nsyscall_stub_data() expects the data_count parameter to be the number of\nlongs, not bytes.\n\n ==================================================================\n BUG: KASAN: stack-out-of-bounds in syscall_stub_data+0x70/0xe0\n Read of size 128 at addr 000000006411f6f0 by task swapper/1\n\n CPU: 0 PID: 1 Comm: swapper Not tainted 5.18.0+ #18\n Call Trace:\n show_stack.cold+0x166/0x2a7\n __dump_stack+0x3a/0x43\n dump_stack_lvl+0x1f/0x27\n print_report.cold+0xdb/0xf81\n kasan_report+0x119/0x1f0\n kasan_check_range+0x3a3/0x440\n memcpy+0x52/0x140\n syscall_stub_data+0x70/0xe0\n write_ldt_entry+0xac/0x190\n init_new_ldt+0x515/0x960\n init_new_context+0x2c4/0x4d0\n mm_init.constprop.0+0x5ed/0x760\n mm_alloc+0x118/0x170\n 0x60033f48\n do_one_initcall+0x1d7/0x860\n 0x60003e7b\n kernel_init+0x6e/0x3d4\n new_thread_handler+0x1e7/0x2c0\n\n The buggy address belongs to stack of task swapper/1\n and is located at offset 64 in frame:\n init_new_ldt+0x0/0x960\n\n This frame has 2 objects:\n [32, 40) 'addr'\n [64, 80) 'desc'\n ==================================================================" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "arch/x86/um/ldt.c" ], "versions": [ { "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e", "lessThan": "668ca34a428d6ffc0f99a1a6a9b661a288d4183b", "status": "affected", "versionType": "git" }, { "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e", "lessThan": "ef1dc929a1e5fa1b2d842256db9fb8710d3be910", "status": "affected", "versionType": "git" }, { "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e", "lessThan": "3549ab4b962cf619e8c55484a0d870a34b3f845f", "status": "affected", "versionType": "git" }, { "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e", "lessThan": "9caad70819aef3431abaf73ba5163b55b161aba0", "status": "affected", "versionType": "git" }, { "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e", "lessThan": "cf0dabc37446c5ee538ae7b4c467ab0e53fa5463", "status": "affected", "versionType": "git" }, { "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e", "lessThan": "10995a382271254bd276627ec74136da4a23c4a6", "status": "affected", "versionType": "git" }, { "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e", "lessThan": "24ca648bf5f72ed8878cf09b5d4431935779681e", "status": "affected", "versionType": "git" }, { "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e", "lessThan": "91e5ba2af2d729d5126aefd5aa3eadc69b8426e5", "status": "affected", "versionType": "git" }, { "version": "858259cf7d1c443c836a2022b78cb281f0a9b95e", "lessThan": "2a4a62a14be1947fa945c5c11ebf67326381a568", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "arch/x86/um/ldt.c" ], "versions": [ { "version": "2.6.15", "status": "affected" }, { "version": "0", "lessThan": "2.6.15", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.318", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.283", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.247", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.198", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.121", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.46", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17.14", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.18.3", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19", "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": "2.6.15", "versionEndExcluding": "4.9.318" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "4.14.283" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "4.19.247" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "5.4.198" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "5.10.121" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "5.15.46" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "5.17.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "5.18.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "5.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/668ca34a428d6ffc0f99a1a6a9b661a288d4183b" }, { "url": "https://git.kernel.org/stable/c/ef1dc929a1e5fa1b2d842256db9fb8710d3be910" }, { "url": "https://git.kernel.org/stable/c/3549ab4b962cf619e8c55484a0d870a34b3f845f" }, { "url": "https://git.kernel.org/stable/c/9caad70819aef3431abaf73ba5163b55b161aba0" }, { "url": "https://git.kernel.org/stable/c/cf0dabc37446c5ee538ae7b4c467ab0e53fa5463" }, { "url": "https://git.kernel.org/stable/c/10995a382271254bd276627ec74136da4a23c4a6" }, { "url": "https://git.kernel.org/stable/c/24ca648bf5f72ed8878cf09b5d4431935779681e" }, { "url": "https://git.kernel.org/stable/c/91e5ba2af2d729d5126aefd5aa3eadc69b8426e5" }, { "url": "https://git.kernel.org/stable/c/2a4a62a14be1947fa945c5c11ebf67326381a568" } ], "title": "um: Fix out-of-bounds read in LDT setup", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2022-49395", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T19:41:28.052131Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:46:50.853Z" } } ] } }