Answer in brief
CVE-2022-50423 records a Unknown severity vulnerability in ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2022-50423 records a Unknown severity vulnerability in ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | 3.17 | Not reported |
| Linux/Linuxgeneric | >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <133462d35dae95edb944af86b986d4c9dec59bd1 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <02f237423c9c6a18e062de2d474f85d5659e4eb9 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <c9125b643fc51b8e662f2f614096ceb45a0adbc3 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <dfdde4d5138bc023897033a5ac653a84e94805be || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <02617006b5a46f2ea55ac61f5693c7afd7bf9276 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <6fde666278f91b85d71545a0ebbf41d8d7af8074 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <f51b2235e4f320edc839c3e5cb0d1f8a6e8657c6 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <01f2c2052ea50fb9a8ce12e4e83aed0267934ef0 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <470188b09e92d83c5a997f25f0e8fb8cd2bc3469 || b3e98f0c4f996cd53b80bad71f0d7e4a2cf3a4e8 || 7af5504c102a378376101dbd160246b10a814dd0 || e29a15484d7ea949e49ae7fb7e576a575da824a6 || e2ab6731a36966d042a2d4dabd980496cd680f75 || >=3.10.55 <3.11 || >=3.12.29 <3.13 || >=3.14.19 <3.15 || >=3.16.3 <3.17 | 133462d35dae95edb944af86b986d4c9dec59bd1, 02f237423c9c6a18e062de2d474f85d5659e4eb9, c9125b643fc51b8e662f2f614096ceb45a0adbc3, dfdde4d5138bc023897033a5ac653a84e94805be, 02617006b5a46f2ea55ac61f5693c7afd7bf9276, 6fde666278f91b85d71545a0ebbf41d8d7af8074, f51b2235e4f320edc839c3e5cb0d1f8a6e8657c6, 01f2c2052ea50fb9a8ce12e4e83aed0267934ef0, 470188b09e92d83c5a997f25f0e8fb8cd2bc3469, 3.11, 3.13, 3.15, 3.17 |
Published upstream
Oct 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() There is an use-after-free reported by KASAN: BUG: KASAN: use-after-free in acpi_ut_remove_reference+0x3b/0x82 Read of size 1 at addr ffff888112afc460 by task modprobe/2111 CPU: 0 PID: 2111 Comm: modprobe Not tainted 6.1.0-rc7-dirty Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), Call Trace: <TASK> kasan_report+0xae/0xe0 acpi_ut_remove_reference+0x3b/0x82 acpi_ut_copy_iobject_to_iobject+0x3be/0x3d5 acpi_ds_store_object_to_local+0x15d/0x3a0 acpi_ex_store+0x78d/0x7fd acpi_ex_opcode_1A_1T_1R+0xbe4/0xf9b acpi_ps_parse_aml+0x217/0x8d5 ... </TASK> The root cause of the problem is that the acpi_operand_object is freed when acpi_ut_walk_package_tree() fails in acpi_ut_copy_ipackage_to_ipackage(), lead to repeated release in acpi_ut_copy_iobject_to_iobject(). The problem was introduced by "8aa5e56eeb61" commit, this commit is to fix memory leak in acpi_ut_copy_iobject_to_iobject(), repeatedly adding remove operation, lead to "acpi_operand_object" used after free. Fix it by removing acpi_ut_remove_reference() in acpi_ut_copy_ipackage_to_ipackage(). acpi_ut_copy_ipackage_to_ipackage() is called to copy an internal package object into another internal package object, when it fails, the memory of acpi_operand_object should be freed by the caller.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | 3.17 | Not reported |
| Linux/Linuxgeneric | >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <133462d35dae95edb944af86b986d4c9dec59bd1 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <02f237423c9c6a18e062de2d474f85d5659e4eb9 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <c9125b643fc51b8e662f2f614096ceb45a0adbc3 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <dfdde4d5138bc023897033a5ac653a84e94805be || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <02617006b5a46f2ea55ac61f5693c7afd7bf9276 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <6fde666278f91b85d71545a0ebbf41d8d7af8074 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <f51b2235e4f320edc839c3e5cb0d1f8a6e8657c6 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <01f2c2052ea50fb9a8ce12e4e83aed0267934ef0 || >=8aa5e56eeb61a099ea6519eb30ee399e1bc043ce <470188b09e92d83c5a997f25f0e8fb8cd2bc3469 || b3e98f0c4f996cd53b80bad71f0d7e4a2cf3a4e8 || 7af5504c102a378376101dbd160246b10a814dd0 || e29a15484d7ea949e49ae7fb7e576a575da824a6 || e2ab6731a36966d042a2d4dabd980496cd680f75 || >=3.10.55 <3.11 || >=3.12.29 <3.13 || >=3.14.19 <3.15 || >=3.16.3 <3.17 | 133462d35dae95edb944af86b986d4c9dec59bd1, 02f237423c9c6a18e062de2d474f85d5659e4eb9, c9125b643fc51b8e662f2f614096ceb45a0adbc3, dfdde4d5138bc023897033a5ac653a84e94805be, 02617006b5a46f2ea55ac61f5693c7afd7bf9276, 6fde666278f91b85d71545a0ebbf41d8d7af8074, f51b2235e4f320edc839c3e5cb0d1f8a6e8657c6, 01f2c2052ea50fb9a8ce12e4e83aed0267934ef0, 470188b09e92d83c5a997f25f0e8fb8cd2bc3469, 3.11, 3.13, 3.15, 3.17 |
Published upstream
Oct 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() There is an use-after-free reported by KASAN: BUG: KASAN: use-after-free in acpi_ut_remove_reference+0x3b/0x82 Read of size 1 at addr ffff888112afc460 by task modprobe/2111 CPU: 0 PID: 2111 Comm: modprobe Not tainted 6.1.0-rc7-dirty Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), Call Trace: <TASK> kasan_report+0xae/0xe0 acpi_ut_remove_reference+0x3b/0x82 acpi_ut_copy_iobject_to_iobject+0x3be/0x3d5 acpi_ds_store_object_to_local+0x15d/0x3a0 acpi_ex_store+0x78d/0x7fd acpi_ex_opcode_1A_1T_1R+0xbe4/0xf9b acpi_ps_parse_aml+0x217/0x8d5 ... </TASK> The root cause of the problem is that the acpi_operand_object is freed when acpi_ut_walk_package_tree() fails in acpi_ut_copy_ipackage_to_ipackage(), lead to repeated release in acpi_ut_copy_iobject_to_iobject(). The problem was introduced by "8aa5e56eeb61" commit, this commit is to fix memory leak in acpi_ut_copy_iobject_to_iobject(), repeatedly adding remove operation, lead to "acpi_operand_object" used after free. Fix it by removing acpi_ut_remove_reference() in acpi_ut_copy_ipackage_to_ipackage(). acpi_ut_copy_ipackage_to_ipackage() is called to copy an internal package object into another internal package object, when it fails, the memory of acpi_operand_object should be freed by the caller.
Quoted source text, attributed separately from HOL analysis.