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.
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
7f47c7189b3e8f19a589f77a3ad169d7b691b582 to < bca700b48c72f4ffeee977a2ed0eb4a6b4b7b8adaffected7f47c7189b3e8f19a589f77a3ad169d7b691b582 to < 479380acfa63247b5ac62476138f847aefc62692affected7f47c7189b3e8f19a589f77a3ad169d7b691b582 to < 4989627157735c1f1619f08e5bc1592418e7c878affected7f47c7189b3e8f19a589f77a3ad169d7b691b582 to < d1c946552af299f4fa85bf7da15e328123771128affected7f47c7189b3e8f19a589f77a3ad169d7b691b582 to < 196f6c71905aa384c0177acf194a1144d480333baffected7f47c7189b3e8f19a589f77a3ad169d7b691b582 to < 8fb11fa4805699c6b73a9c8a9d45807f9874abe3affected7f47c7189b3e8f19a589f77a3ad169d7b691b582 to < e9e33faea104381bac80ac79328f0540fc2969f2affected7f47c7189b3e8f19a589f77a3ad169d7b691b582 to < e82e47584847129a20b8c9f4a1dcde09374fb0e0affected
Linux Linux
Default version status: affected
3.5affected0 to < 3.5unaffected4.14.322 to ≤ 4.14.*unaffected4.19.291 to ≤ 4.19.*unaffected5.4.251 to ≤ 5.4.*unaffected5.10.188 to ≤ 5.10.*unaffected5.15.121 to ≤ 5.15.*unaffected6.1.39 to ≤ 6.1.*unaffected6.4.4 to ≤ 6.4.*unaffected6.5 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/bca700b48c72f4ffeee977a2ed0eb4a6b4b7b8ad ↗
- https://git.kernel.org/stable/c/479380acfa63247b5ac62476138f847aefc62692 ↗
- https://git.kernel.org/stable/c/4989627157735c1f1619f08e5bc1592418e7c878 ↗
- https://git.kernel.org/stable/c/d1c946552af299f4fa85bf7da15e328123771128 ↗
- https://git.kernel.org/stable/c/196f6c71905aa384c0177acf194a1144d480333b ↗
- https://git.kernel.org/stable/c/8fb11fa4805699c6b73a9c8a9d45807f9874abe3 ↗
- https://git.kernel.org/stable/c/e9e33faea104381bac80ac79328f0540fc2969f2 ↗
- https://git.kernel.org/stable/c/e82e47584847129a20b8c9f4a1dcde09374fb0e0 ↗