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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2021-4460

drm/amdkfd: Fix UBSAN shift-out-of-bounds warning

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix UBSAN shift-out-of-bounds warning If get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up doing a shift operation where the number of bits shifted equals number of bits in the operand. This behaviour is undefined. Set num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the count is >= number of bits in the operand. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472

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

  • 35cdc81bfa94d10373ecae279f3c48ca858ac4fd to < 0c0356ef2498c1a250fe3846f30293f828737309affected
  • 35cdc81bfa94d10373ecae279f3c48ca858ac4fd to < 1874b0ef1426b873de94c61861e38f29a8df714caffected
  • 35cdc81bfa94d10373ecae279f3c48ca858ac4fd to < 3fdc5182700910a685d23df57d65166e8556a266affected
  • 35cdc81bfa94d10373ecae279f3c48ca858ac4fd to < 9069b1b542de8f3bbffef868aff41521b21485cfaffected
  • 35cdc81bfa94d10373ecae279f3c48ca858ac4fd to < 50e2fc36e72d4ad672032ebf646cecb48656efe0affected

Linux Linux

Default version status: affected

  • 5.4affected
  • 0 to < 5.4unaffected
  • 5.4.118 to ≤ 5.4.*unaffected
  • 5.10.36 to ≤ 5.10.*unaffected
  • 5.11.20 to ≤ 5.11.*unaffected
  • 5.12.3 to ≤ 5.12.*unaffected
  • 5.13 to ≤ *unaffected

References