Description
In the Linux kernel, the following vulnerability has been resolved: arm64: percpu: Fix LSE operations on {8,16}-bit types The assembly for __percpu_##name##_case_##sz() and __percpu_##name##_return_case_##sz() doesn't use the 'sfx' macro argument to form the LSE instruction. Without 'sfx', a W register argument will imply a 32-bit memory location, and consequently {8,16}-bit ops will erroneously read and write 32 bits of memory when the LSE instruction is used. Fix this by appending 'sfx' to 'op_lse' to LSE instruction. It is not necessary (and not valid) to append 'sfx' to 'op_llsc', as 'op_llsc' is a register-register operation which does not access memory (and does not take a size suffix).
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
959bf2fd03b59fc107584c21425f3dc73c49f762 to < d69ab4480e49bf925f4781afcc9f284affcb96b6affected959bf2fd03b59fc107584c21425f3dc73c49f762 to < 390742871a723b52de9b92a94c0d1c85a2531e3eaffected959bf2fd03b59fc107584c21425f3dc73c49f762 to < 843ace1d0a39e9b1cfcbfb3856a7b0fbdd9cd003affected959bf2fd03b59fc107584c21425f3dc73c49f762 to < 8cf2093f5372952a9ebc805c418d45df7112cd14affected
Linux Linux
Default version status: affected
5.0affected0 to < 5.0unaffected6.12.112 to ≤ 6.12.*unaffected6.18.54 to ≤ 6.18.*unaffected7.2.8 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected