CVE-2022-50423
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce < 133462d35dae95edb944af86b986d4c9dec59bd1 | affected |
| Linux | Linux | 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce < 02f237423c9c6a18e062de2d474f85d5659e4eb9 | affected |
| Linux | Linux | 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce < c9125b643fc51b8e662f2f614096ceb45a0adbc3 | affected |
| Linux | Linux | 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce < dfdde4d5138bc023897033a5ac653a84e94805be | affected |
| Linux | Linux | 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce < 02617006b5a46f2ea55ac61f5693c7afd7bf9276 | affected |
| Linux | Linux | 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce < 6fde666278f91b85d71545a0ebbf41d8d7af8074 | affected |
| Linux | Linux | 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce < f51b2235e4f320edc839c3e5cb0d1f8a6e8657c6 | affected |
| Linux | Linux | 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce < 01f2c2052ea50fb9a8ce12e4e83aed0267934ef0 | affected |
| Linux | Linux | 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce < 470188b09e92d83c5a997f25f0e8fb8cd2bc3469 | affected |
| Linux | Linux | b3e98f0c4f996cd53b80bad71f0d7e4a2cf3a4e8 | affected |
| Linux | Linux | 7af5504c102a378376101dbd160246b10a814dd0 | affected |
| Linux | Linux | e29a15484d7ea949e49ae7fb7e576a575da824a6 | affected |
| Linux | Linux | e2ab6731a36966d042a2d4dabd980496cd680f75 | affected |
| Linux | Linux | 3.10.55 < 3.11 | affected |
| Linux | Linux | 3.12.29 < 3.13 | affected |
| Linux | Linux | 3.14.19 < 3.15 | affected |
| Linux | Linux | 3.16.3 < 3.17 | affected |
| Linux | Linux | 3.17 | affected |
| Linux | Linux | 0 < 3.17 | unaffected |
| Linux | Linux | 4.9.337 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.303 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.270 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.229 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.163 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.86 <= 5.15.* | unaffected |
| Linux | Linux | 6.0.16 <= 6.0.* | unaffected |
| Linux | Linux | 6.1.2 <= 6.1.* | unaffected |
| Linux | Linux | 6.2 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://git.kernel.org/stable/c/133462d35dae95edb944af86b986d4c9dec59bd1
- https://git.kernel.org/stable/c/02f237423c9c6a18e062de2d474f85d5659e4eb9
- https://git.kernel.org/stable/c/c9125b643fc51b8e662f2f614096ceb45a0adbc3
- https://git.kernel.org/stable/c/dfdde4d5138bc023897033a5ac653a84e94805be
- https://git.kernel.org/stable/c/02617006b5a46f2ea55ac61f5693c7afd7bf9276
- https://git.kernel.org/stable/c/6fde666278f91b85d71545a0ebbf41d8d7af8074
- https://git.kernel.org/stable/c/f51b2235e4f320edc839c3e5cb0d1f8a6e8657c6
- https://git.kernel.org/stable/c/01f2c2052ea50fb9a8ce12e4e83aed0267934ef0
- https://git.kernel.org/stable/c/470188b09e92d83c5a997f25f0e8fb8cd2bc3469
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