CVE-2023-54255
In the Linux kernel, the following vulnerability has been resolved: sh: dma: Fix DMA channel offset calculation Various SoCs of the SH3, SH4 and SH4A family, which use this driver, feature a differing number of DMA channels, which can be distributed…
Does this matter?
Not yet scored. NVD analysis is pending; check back once CVSS and EPSS values are published.
Description
In the Linux kernel, the following vulnerability has been resolved: sh: dma: Fix DMA channel offset calculation Various SoCs of the SH3, SH4 and SH4A family, which use this driver, feature a differing number of DMA channels, which can be distributed between up to two DMAC modules. The existing implementation fails to correctly accommodate for all those variations, resulting in wrong channel offset calculations and leading to kernel panics. Rewrite dma_base_addr() in order to properly calculate channel offsets in a DMAC module. Fix dmaor_read_reg() and dmaor_write_reg(), so that the correct DMAC module base is selected for the DMAOR register.
- CVSS
- Not yet scored
- EPSS
- 0.21% probability · 11th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/196f6c71905aa384c0177acf194a1144d480333b
- https://git.kernel.org/stable/c/479380acfa63247b5ac62476138f847aefc62692
- https://git.kernel.org/stable/c/4989627157735c1f1619f08e5bc1592418e7c878
- https://git.kernel.org/stable/c/8fb11fa4805699c6b73a9c8a9d45807f9874abe3
- https://git.kernel.org/stable/c/bca700b48c72f4ffeee977a2ed0eb4a6b4b7b8ad
- https://git.kernel.org/stable/c/d1c946552af299f4fa85bf7da15e328123771128
- https://git.kernel.org/stable/c/e82e47584847129a20b8c9f4a1dcde09374fb0e0
- https://git.kernel.org/stable/c/e9e33faea104381bac80ac79328f0540fc2969f2
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.