Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ACPI: NFIT: core: Fix possible NULL pointer dereference After commit 9b311b7313d6 ("ACPI: NFIT: Install Notify() handler before getting NFIT table"), acpi_nfit_probe() installs an ACPI notify handler for the NFIT device before checking the presence of the NFIT table. If that table is not there, 0 is returned without allocating the acpi_desc object and setting the driver data pointer of the NFIT device. If the platform firmware triggers an NFIT_NOTIFY_UC_MEMORY_ERROR notification on the NFIT device at that point, acpi_nfit_uc_error_notify() will dereference a NULL pointer. Prevent that from occurring by adding an acpi_desc check against NULL to acpi_nfit_uc_error_notify().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 9b311b7313d6c104dd4a2d43ab54536dce07f960 before a44343fe230aa48c74ef09830f3c5c90848b257e; affected 9b311b7313d6c104dd4a2d43ab54536dce07f960 before 3c8f73b0fbdf956c98e2329d5aaea3ad09a9cfb6; affected 9b311b7313d6c104dd4a2d43ab54536dce07f960 before 452945662fd8e9862a2d2043239c7ee1815d1ac4; affected 9b311b7313d6c104dd4a2d43ab54536dce07f960 before 873576e585da5d0fc5debbab74eed565c0acea99; affected 9b311b7313d6c104dd4a2d43ab54536dce07f960 before 027e128abb82788189d6d45b68e3e8e7329b67be |
| Linux / Linux | affected 6.6; unaffected 0 before 6.6; unaffected 6.6.145 through 6.6.*; unaffected 6.12.96 through 6.12.*; unaffected 6.18.39 through 6.18.*; unaffected 7.1.4 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a44343fe230aa48c74ef09830f3c5c90848b257e
- https://git.kernel.org/stable/c/3c8f73b0fbdf956c98e2329d5aaea3ad09a9cfb6
- https://git.kernel.org/stable/c/452945662fd8e9862a2d2043239c7ee1815d1ac4
- https://git.kernel.org/stable/c/873576e585da5d0fc5debbab74eed565c0acea99
- https://git.kernel.org/stable/c/027e128abb82788189d6d45b68e3e8e7329b67be