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ASoC: amd: acp-sdw-legacy: Bound DAI link iteration

In the Linux kernel, the following vulnerability has been resolved: ASoC: amd: acp-sdw-legacy: Bound DAI link iteration create_sdw_dailinks() walks soc_dais until it finds an entry with initialised cleared, but soc_dais is allocated with exactly num_ends entries. If all entries are initialised, the loop reads past the end of the array. This was reported by KASAN: BUG: KASAN: slab-out-of-bounds in mc_probe+0x26b3/0x2774 [snd_acp_sdw_legacy_mach] Read of size 1 Pass the allocated entry count to create_sdw_dailinks() and stop before reading past the array.

Affected products

Linux
  • <d49ecdf327cc91062d2f80996a163cf65fda1e60
  • =<*
  • =<6.18.*
  • ==6.13
  • <6.13
  • <0230471eef5902207516851dcd47c559571dded2
  • =<7.1.*
  • <1279bdab5fa1f28c168e54215db506e87c6fac1e