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CVE-2022-50423

ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce before 133462d35dae95edb944af86b986d4c9dec59bd1; affected 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce before 02f237423c9c6a18e062de2d474f85d5659e4eb9; affected 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce before c9125b643fc51b8e662f2f614096ceb45a0adbc3; affected 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce before dfdde4d5138bc023897033a5ac653a84e94805be; affected 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce before 02617006b5a46f2ea55ac61f5693c7afd7bf9276; affected 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce before 6fde666278f91b85d71545a0ebbf41d8d7af8074; affected 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce before f51b2235e4f320edc839c3e5cb0d1f8a6e8657c6; affected 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce before 01f2c2052ea50fb9a8ce12e4e83aed0267934ef0; affected 8aa5e56eeb61a099ea6519eb30ee399e1bc043ce before 470188b09e92d83c5a997f25f0e8fb8cd2bc3469; affected b3e98f0c4f996cd53b80bad71f0d7e4a2cf3a4e8; affected 7af5504c102a378376101dbd160246b10a814dd0; affected e29a15484d7ea949e49ae7fb7e576a575da824a6; affected e2ab6731a36966d042a2d4dabd980496cd680f75; affected 3.10.55 before 3.11; affected 3.12.29 before 3.13; affected 3.14.19 before 3.15; affected 3.16.3 before 3.17
Linux / Linuxaffected 3.17; unaffected 0 before 3.17; unaffected 4.9.337 through 4.9.*; unaffected 4.14.303 through 4.14.*; unaffected 4.19.270 through 4.19.*; unaffected 5.4.229 through 5.4.*; unaffected 5.10.163 through 5.10.*; unaffected 5.15.86 through 5.15.*; unaffected 6.0.16 through 6.0.*; unaffected 6.1.2 through 6.1.*; unaffected 6.2 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.