Description
In the Linux kernel, the following vulnerability has been resolved: ACPICA: Avoid walking the Namespace if start_node is NULL Although commit 0c9992315e73 ("ACPICA: Avoid walking the ACPI Namespace if it is not there") fixed the situation when both start_node and acpi_gbl_root_node are NULL, the Linux kernel mainline now still crashed on Honor Magicbook 14 Pro [1]. That happens due to the access to the member of parent_node in acpi_ns_get_next_node(). The NULL pointer dereference will always happen, no matter whether or not the start_node is equal to ACPI_ROOT_OBJECT, so move the check of start_node being NULL out of the if block. Unfortunately, all the attempts to contact Honor have failed, they refused to provide any technical support for Linux. The bad DSDT table's dump could be found on GitHub [2]. DMI: HONOR FMB-P/FMB-P-PCB, BIOS 1.13 05/08/2025 [ rjw: Subject adjustment, changelog edits ]
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < b84edef48cc8afb41150949a87dcfa81bc95b53eaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < ecb296286c8787895625bd4c53e9478db4ae139caffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 7f9b951ed11842373851dd3c91860778356d62d3affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 1bc34293dfbd266c29875206849b4f8e8177e6dfaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 0d8bb08126920fd4b12dbf32d9250757c9064b36affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < f91dad0a3b381244183ffbea4cec5a7a69d6f41eaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 9d6c58dae8f6590c746ac5d0012ffe14a77539f0affected
Linux Linux
Default version status: affected
2.6.12affected0 to < 2.6.12unaffected5.10.248 to ≤ 5.10.*unaffected5.15.198 to ≤ 5.15.*unaffected6.1.160 to ≤ 6.1.*unaffected6.6.120 to ≤ 6.6.*unaffected6.12.64 to ≤ 6.12.*unaffected6.18.3 to ≤ 6.18.*unaffected6.19 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/b84edef48cc8afb41150949a87dcfa81bc95b53e ↗
- https://git.kernel.org/stable/c/ecb296286c8787895625bd4c53e9478db4ae139c ↗
- https://git.kernel.org/stable/c/7f9b951ed11842373851dd3c91860778356d62d3 ↗
- https://git.kernel.org/stable/c/1bc34293dfbd266c29875206849b4f8e8177e6df ↗
- https://git.kernel.org/stable/c/0d8bb08126920fd4b12dbf32d9250757c9064b36 ↗
- https://git.kernel.org/stable/c/f91dad0a3b381244183ffbea4cec5a7a69d6f41e ↗
- https://git.kernel.org/stable/c/9d6c58dae8f6590c746ac5d0012ffe14a77539f0 ↗