{"id":"CVE-2022-50423","summary":"ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage()","details":"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   \u003cTASK\u003e\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   \u003c/TASK\u003e\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.","modified":"2026-05-18T05:55:52.610799952Z","published":"2025-10-01T11:41:56.083Z","related":["SUSE-SU-2025:03615-1","SUSE-SU-2025:03628-1","SUSE-SU-2025:3716-1","SUSE-SU-2025:3761-1","SUSE-SU-2025:4135-1","SUSE-SU-2025:4188-1","SUSE-SU-2025:4189-1","SUSE-SU-2026:0953-1","SUSE-SU-2026:0954-1","SUSE-SU-2026:0958-1","SUSE-SU-2026:0970-1","SUSE-SU-2026:1044-1","SUSE-SU-2026:1088-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50423.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/01f2c2052ea50fb9a8ce12e4e83aed0267934ef0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/02617006b5a46f2ea55ac61f5693c7afd7bf9276"},{"type":"WEB","url":"https://git.kernel.org/stable/c/02f237423c9c6a18e062de2d474f85d5659e4eb9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/133462d35dae95edb944af86b986d4c9dec59bd1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/470188b09e92d83c5a997f25f0e8fb8cd2bc3469"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6fde666278f91b85d71545a0ebbf41d8d7af8074"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c9125b643fc51b8e662f2f614096ceb45a0adbc3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dfdde4d5138bc023897033a5ac653a84e94805be"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f51b2235e4f320edc839c3e5cb0d1f8a6e8657c6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50423.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50423"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8aa5e56eeb61a099ea6519eb30ee399e1bc043ce"},{"fixed":"133462d35dae95edb944af86b986d4c9dec59bd1"},{"fixed":"02f237423c9c6a18e062de2d474f85d5659e4eb9"},{"fixed":"c9125b643fc51b8e662f2f614096ceb45a0adbc3"},{"fixed":"dfdde4d5138bc023897033a5ac653a84e94805be"},{"fixed":"02617006b5a46f2ea55ac61f5693c7afd7bf9276"},{"fixed":"6fde666278f91b85d71545a0ebbf41d8d7af8074"},{"fixed":"f51b2235e4f320edc839c3e5cb0d1f8a6e8657c6"},{"fixed":"01f2c2052ea50fb9a8ce12e4e83aed0267934ef0"},{"fixed":"470188b09e92d83c5a997f25f0e8fb8cd2bc3469"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"b3e98f0c4f996cd53b80bad71f0d7e4a2cf3a4e8"},{"last_affected":"7af5504c102a378376101dbd160246b10a814dd0"},{"last_affected":"e29a15484d7ea949e49ae7fb7e576a575da824a6"},{"last_affected":"e2ab6731a36966d042a2d4dabd980496cd680f75"}]}],"versions":["v3.16","v3.16.2","v3.14.18","v3.10.54","v3.12.28","v3.16.1","v3.14.17","v3.10.53","v3.12.27","v3.16-rc7","v3.14.16","v3.10.52","v3.14.15","v3.10.51","v3.16-rc1","v3.16-rc3","v3.10.50","v3.14.14","v3.12.26","v3.16-rc5","v3.16-rc6","v3.14.13","v3.10.49","v3.16-rc2","v3.16-rc4","v3.12.25","v3.14.12","v3.10.48","v3.12.24","v3.13","v3.14.11","v3.10.47","v3.15","v3.14.10","v3.10.46","v3.14.9","v3.10.45","v3.14.8","v3.10.44","v3.12.23","v3.12.22","v3.10.43","v3.14.7","v3.10.42","v3.14.6","v3.15-rc5","v3.10.41","v3.14.5","v3.15-rc8","v3.15-rc1","v3.15-rc6","v3.12.21","v3.15-rc3","v3.14.4","v3.10.40","v3.15-rc7","v3.15-rc2","v3.15-rc4","v3.14","v3.12.20","v3.10.39","v3.14.3","v3.14.2","v3.10.38","v3.12.19","v3.14-rc4","v3.14.1","v3.10.37","v3.12.18","v3.14-rc8","v3.10.36","v3.12.17","v3.14-rc7","v3.14-rc6","v3.14-rc1","v3.14-rc2","v3.10.35","v3.12.16","v3.10.34","v3.14-rc5","v3.12.15","v3.10.33","v3.14-rc3","v3.12.14","v3.10.32","v3.12.13","v3.12.12","v3.10.31","v3.12.11","v3.10.30","v3.12.10","v3.10.29","v3.13-rc6","v3.12.9","v3.10.28","v3.12.8","v3.10.27","v3.13-rc8","v3.12","v3.13-rc7","v3.13-rc1","v3.12.7","v3.10.26","v3.13-rc4","v3.13-rc3","v3.12.6","v3.10.25","v3.13-rc5","v3.13-rc2","v3.12.5","v3.10.24","v3.12.4","v3.10.23","v3.10.22","v3.12.3","v3.12.2","v3.10.21","v3.12.1","v3.10.20","v3.10.19","v3.12-rc7","v3.12-rc3","v3.12-rc6","v3.10.18","v3.12-rc1","v3.12-rc5","v3.11","v3.10.17","v3.12-rc2","v3.12-rc4","v3.10.16","v3.10.15","v3.10.14","v3.10.13","v3.10.12","v3.10.11","v3.11-rc7","v3.10.10","v3.11-rc2","v3.11-rc5","v3.11-rc1","v3.11-rc3","v3.11-rc4","v3.10.9","v3.11-rc6","v3.10.8","v3.10.7","v3.10.6","v3.10.5","v3.10-rc2","v3.10.4","v3.10.3","v3.10.2","v3.10","v3.10.1","v3.10-rc7","v3.10-rc6","v3.10-rc1","v3.10-rc5","v3.10-rc3","v3.10-rc4","v3.9","v3.9-rc2","v3.9-rc7","v3.9-rc8","v3.9-rc3","v3.9-rc6","v3.9-rc5","v3.9-rc4","v3.9-rc1","v3.8","v3.8-rc7","v3.8-rc6","v3.8-rc5","v3.8-rc2","v3.8-rc1","v3.8-rc3","v3.8-rc4","v3.7","v3.7-rc1","v3.6","v3.7-rc6","v3.7-rc7","v3.7-rc3","v3.7-rc8","v3.7-rc2","v3.7-rc4","v3.7-rc5","v3.6-rc7","v3.6-rc1","v3.5-rc3","v3.6-rc6","v3.6-rc5","v3.5","v3.6-rc3","v3.6-rc4","v3.6-rc2","v3.4-rc4","v3.5-rc7","v3.5-rc5","v3.5-rc6","v3.5-rc2","v3.5-rc1","v3.5-rc4","v3.4","v3.4-rc2","v3.4-rc1","v3.4-rc7","v3.4-rc6","v3.4-rc3","v3.4-rc5","v3.3","v3.3-rc6","v3.3-rc3","v3.3-rc7","v3.3-rc2","v3.3-rc5","v3.2","v3.3-rc4","v3.3-rc1","v3.2-rc4","v3.2-rc7","v3.2-rc6","v3.2-rc5","v3.2-rc3","v3.1","v3.2-rc2","v3.2-rc1","v3.1-rc1","v3.1-rc9","v3.1-rc8","v3.1-rc10","v3.1-rc7","v3.1-rc3","v3.1-rc2","v3.1-rc4","v3.1-rc5","v3.0","v3.1-rc6","v3.0-rc7","v3.0-rc4","v3.0-rc6","v3.0-rc5","v3.0-rc3","v3.0-rc1","v2.6.39","v3.0-rc2","v2.6.38","v2.6.39-rc2","v2.6.39-rc7","v2.6.39-rc5","v2.6.39-rc1","v2.6.38-rc7","v2.6.39-rc6","v2.6.39-rc4","v2.6.39-rc3","v2.6.37","v2.6.38-rc1","v2.6.38-rc8","v2.6.38-rc2","v2.6.38-rc6","v2.6.38-rc5","v2.6.38-rc4","v2.6.38-rc3","v2.6.37-rc4","v2.6.37-rc2","v2.6.36","v2.6.37-rc5","v2.6.37-rc8","v2.6.37-rc7","v2.6.37-rc6","v2.6.37-rc1","v2.6.37-rc3","v2.6.36-rc6","v2.6.35-rc4","v2.6.36-rc8","v2.6.35","v2.6.36-rc7","v2.6.36-rc3","v2.6.36-rc5","v2.6.36-rc4","v2.6.36-rc2","v2.6.36-rc1","v2.6.35-rc5","v2.6.35-rc6","v2.6.34","v2.6.35-rc3","v2.6.35-rc1","v2.6.35-rc2","v2.6.34-rc7","v2.6.34-rc6","v2.6.34-rc5","v2.6.34-rc4","v2.6.34-rc3","v2.6.34-rc2","v2.6.34-rc1","v2.6.33","v2.6.33-rc6","v2.6.33-rc8","v2.6.33-rc4","v2.6.33-rc5","v2.6.33-rc3","v2.6.33-rc7","v2.6.33-rc2","v2.6.32","v2.6.33-rc1","v2.6.32-rc8","v2.6.32-rc7","v2.6.32-rc6","v2.6.31","v2.6.32-rc5","v2.6.32-rc4","v2.6.32-rc2","v2.6.32-rc1","v2.6.32-rc3","v2.6.31-rc9","v2.6.31-rc1","v2.6.31-rc7","v2.6.31-rc8","v2.6.31-rc6","v2.6.30-rc6","v2.6.30","v2.6.31-rc4","v2.6.31-rc5","v2.6.31-rc3","v2.6.31-rc2","v2.6.30-rc7","v2.6.30-rc8","v2.6.30-rc5","v2.6.30-rc3","v2.6.30-rc4","v2.6.30-rc1","v2.6.30-rc2","v2.6.29","v2.6.29-rc8","v2.6.29-rc7","v2.6.29-rc5","v2.6.29-rc1","v2.6.29-rc6","v2.6.29-rc4","v2.6.29-rc3","v2.6.29-rc2","v2.6.28","v2.6.28-rc7","v2.6.28-rc9","v2.6.28-rc8","v2.6.28-rc6","v2.6.28-rc5","v2.6.28-rc4","v2.6.28-rc2","v2.6.28-rc3","v2.6.28-rc1","v2.6.27","v2.6.27-rc7","v2.6.27-rc9","v2.6.27-rc8","v2.6.27-rc5","v2.6.27-rc6","v2.6.27-rc4","v2.6.27-rc1","v2.6.27-rc3","v2.6.27-rc2","v2.6.26","v2.6.26-rc9","v2.6.26-rc8","v2.6.26-rc3","v2.6.26-rc7","v2.6.26-rc6","v2.6.26-rc5","v2.6.26-rc4","v2.6.26-rc2","v2.6.26-rc1","v2.6.25","v2.6.25-rc7","v2.6.25-rc9","v2.6.25-rc8","v2.6.25-rc6","v2.6.25-rc5","v2.6.25-rc3","v2.6.25-rc4","v2.6.24","v2.6.25-rc2","v2.6.25-rc1","v2.6.24-rc8","v2.6.24-rc7","v2.6.24-rc6","v2.6.24-rc5","v2.6.24-rc4","v2.6.24-rc3","v2.6.24-rc2","v2.6.24-rc1","v2.6.23","v2.6.23-rc9","v2.6.23-rc8","v2.6.23-rc5","v2.6.23-rc7","v2.6.23-rc6","v2.6.23-rc4","v2.6.23-rc3","v2.6.23-rc2","v2.6.23-rc1","v2.6.22","v2.6.22-rc7","v2.6.22-rc6","v2.6.22-rc5","v2.6.22-rc4","v2.6.22-rc3","v2.6.22-rc2","v2.6.22-rc1","v2.6.21","v2.6.21-rc7","v2.6.21-rc6","v2.6.21-rc5","v2.6.21-rc4","v2.6.21-rc3","v2.6.21-rc2","v2.6.21-rc1","v2.6.20-rc7","v2.6.20-rc6","v2.6.20-rc5","v2.6.20-rc4","v2.6.20-rc3","v2.6.20-rc1","v2.6.20-rc2","v2.6.19-rc2","v2.6.18","v2.6.19-rc1","v2.6.18-rc6","v2.6.18-rc5","v2.6.18-rc3","v2.6.18-rc2","v2.6.18-rc1","v2.6.17","v2.6.17-rc4","v2.6.17-rc6","v2.6.17-rc5","v2.6.17-rc3","v2.6.17-rc2","v2.6.17-rc1","v2.6.16","v2.6.16-rc6","v2.6.16-rc4","v2.6.16-rc5","v2.6.16-rc3","v2.6.16-rc2","v2.6.16-rc1","v2.6.15-rc7","v2.6.15-rc5","v2.6.15-rc4","v2.6.15-rc2","v2.6.15-rc1","v2.6.14-rc3","v2.6.14-rc2","v2.6.14-rc1","v2.6.13","v2.6.13-rc7","v2.6.13-rc6","v2.6.13-rc5","v2.6.13-rc3","v2.6.13-rc4","v2.6.13-rc2","v2.6.13-rc1","v2.6.12-rc4","v2.6.12-rc3","v2.6.12-rc2"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50423.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.17.0"},{"fixed":"4.9.337"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.10.0"},{"fixed":"4.14.303"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.15.0"},{"fixed":"4.19.270"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.20.0"},{"fixed":"5.4.229"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.163"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.86"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.0.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.1.0"},{"fixed":"6.1.2"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50423.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}