Description
In the Linux kernel, the following vulnerability has been resolved: ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure When failing the driver probe because of invalid firmware properties, the GTDT driver unmaps the interrupt that it mapped earlier. However, it never checks whether the mapping of the interrupt actially succeeded. Even more, should the firmware report an illegal interrupt number that overlaps with the GIC SGI range, this can result in an IPI being unmapped, and subsequent fireworks (as reported by Dann Frazier). Rework the driver to have a slightly saner behaviour and actually check whether the interrupt has been mapped before unmapping things.
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
ca9ae5ec4ef0ed13833b03297ab319676965492c to < c3385a9122f8db15b453e07bfc88117fce7f3724affectedca9ae5ec4ef0ed13833b03297ab319676965492c to < 7b2162db1498c71962a4bb2f776fa4e76d4d305baffectedca9ae5ec4ef0ed13833b03297ab319676965492c to < 504632a3577a049dd9bb7aabae5b4476f9c586b4affectedca9ae5ec4ef0ed13833b03297ab319676965492c to < e0f2d86481eaa83df33b0793f75212919db7a19daffectedca9ae5ec4ef0ed13833b03297ab319676965492c to < 42e69521ee1fa5abf21f478d147d06bbfe6bf6a8affectedca9ae5ec4ef0ed13833b03297ab319676965492c to < 596e079c362ac17ed02aa1b99fdc444d62072a01affectedca9ae5ec4ef0ed13833b03297ab319676965492c to < 1ecd5b129252249b9bc03d7645a7bda512747277affected
Linux Linux
Default version status: affected
4.12affected0 to < 4.12unaffected4.14.233 to ≤ 4.14.*unaffected4.19.191 to ≤ 4.19.*unaffected5.4.118 to ≤ 5.4.*unaffected5.10.36 to ≤ 5.10.*unaffected5.11.20 to ≤ 5.11.*unaffected5.12.3 to ≤ 5.12.*unaffected5.13 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/c3385a9122f8db15b453e07bfc88117fce7f3724 ↗
- https://git.kernel.org/stable/c/7b2162db1498c71962a4bb2f776fa4e76d4d305b ↗
- https://git.kernel.org/stable/c/504632a3577a049dd9bb7aabae5b4476f9c586b4 ↗
- https://git.kernel.org/stable/c/e0f2d86481eaa83df33b0793f75212919db7a19d ↗
- https://git.kernel.org/stable/c/42e69521ee1fa5abf21f478d147d06bbfe6bf6a8 ↗
- https://git.kernel.org/stable/c/596e079c362ac17ed02aa1b99fdc444d62072a01 ↗
- https://git.kernel.org/stable/c/1ecd5b129252249b9bc03d7645a7bda512747277 ↗