{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2022-50423", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50423", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-10-01T11:41:56.083Z", "updatedAt": "2026-08-05T08:58:45.759Z", "importedAt": "2026-10-24T01:56:49.724Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage()\n\nThere is an use-after-free reported by KASAN:\n\n BUG: KASAN: use-after-free in acpi_ut_remove_reference+0x3b/0x82\n Read of size 1 at addr ffff888112afc460 by task modprobe/2111\n CPU: 0 PID: 2111 Comm: modprobe Not tainted 6.1.0-rc7-dirty\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),\n Call Trace:\n \n kasan_report+0xae/0xe0\n acpi_ut_remove_reference+0x3b/0x82\n acpi_ut_copy_iobject_to_iobject+0x3be/0x3d5\n acpi_ds_store_object_to_local+0x15d/0x3a0\n acpi_ex_store+0x78d/0x7fd\n acpi_ex_opcode_1A_1T_1R+0xbe4/0xf9b\n acpi_ps_parse_aml+0x217/0x8d5\n ...\n \n\nThe root cause of the problem is that the acpi_operand_object\nis freed when acpi_ut_walk_package_tree() fails in\nacpi_ut_copy_ipackage_to_ipackage(), lead to repeated release in\nacpi_ut_copy_iobject_to_iobject(). The problem was introduced\nby \"8aa5e56eeb61\" commit, this commit is to fix memory leak in\nacpi_ut_copy_iobject_to_iobject(), repeatedly adding remove\noperation, lead to \"acpi_operand_object\" used after free.\n\nFix it by removing acpi_ut_remove_reference() in\nacpi_ut_copy_ipackage_to_ipackage(). acpi_ut_copy_ipackage_to_ipackage()\nis called to copy an internal package object into another internal\npackage object, when it fails, the memory of acpi_operand_object\nshould be freed by the caller.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "8aa5e56eeb61a099ea6519eb30ee399e1bc043ce", "status": "affected", "versionType": "git", "lessThan": "133462d35dae95edb944af86b986d4c9dec59bd1" }, { "version": "8aa5e56eeb61a099ea6519eb30ee399e1bc043ce", "status": "affected", "versionType": "git", "lessThan": "02f237423c9c6a18e062de2d474f85d5659e4eb9" }, { "version": "8aa5e56eeb61a099ea6519eb30ee399e1bc043ce", "status": "affected", "versionType": "git", "lessThan": "c9125b643fc51b8e662f2f614096ceb45a0adbc3" }, { "version": "8aa5e56eeb61a099ea6519eb30ee399e1bc043ce", "status": "affected", "versionType": "git", "lessThan": "dfdde4d5138bc023897033a5ac653a84e94805be" }, { "version": "8aa5e56eeb61a099ea6519eb30ee399e1bc043ce", "status": "affected", "versionType": "git", "lessThan": "02617006b5a46f2ea55ac61f5693c7afd7bf9276" }, { "version": "8aa5e56eeb61a099ea6519eb30ee399e1bc043ce", "status": "affected", "versionType": "git", "lessThan": "6fde666278f91b85d71545a0ebbf41d8d7af8074" }, { "version": "8aa5e56eeb61a099ea6519eb30ee399e1bc043ce", "status": "affected", "versionType": "git", "lessThan": "f51b2235e4f320edc839c3e5cb0d1f8a6e8657c6" }, { "version": "8aa5e56eeb61a099ea6519eb30ee399e1bc043ce", "status": "affected", "versionType": "git", "lessThan": "01f2c2052ea50fb9a8ce12e4e83aed0267934ef0" }, { "version": "8aa5e56eeb61a099ea6519eb30ee399e1bc043ce", "status": "affected", "versionType": "git", "lessThan": "470188b09e92d83c5a997f25f0e8fb8cd2bc3469" }, { "version": "b3e98f0c4f996cd53b80bad71f0d7e4a2cf3a4e8", "status": "affected", "versionType": "git" }, { "version": "7af5504c102a378376101dbd160246b10a814dd0", "status": "affected", "versionType": "git" }, { "version": "e29a15484d7ea949e49ae7fb7e576a575da824a6", "status": "affected", "versionType": "git" }, { "version": "e2ab6731a36966d042a2d4dabd980496cd680f75", "status": "affected", "versionType": "git" }, { "version": "3.10.55", "status": "affected", "versionType": "semver", "lessThan": "3.11" }, { "version": "3.12.29", "status": "affected", "versionType": "semver", "lessThan": "3.13" }, { "version": "3.14.19", "status": "affected", "versionType": "semver", "lessThan": "3.15" }, { "version": "3.16.3", "status": "affected", "versionType": "semver", "lessThan": "3.17" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "3.17", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "3.17" }, { "version": "4.9.337", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.9.*" }, { "version": "4.14.303", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.270", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.229", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.163", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.86", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.0.16", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.0.*" }, { "version": "6.1.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }