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(parent: fd824fc) | patch
sparc32: fix register window handling in genregs32_[gs]et()
authorAl Viro <viro@zeniv.linux.org.uk>
Sun, 17 May 2020 16:20:40 +0000 (12:20 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Wed, 20 May 2020 17:29:37 +0000 (13:29 -0400)
commit5ff56351409d203b7767f5684b56cc24eb703c99
tree4311086f82c37df73c174cc71c3a8849079a84a5tree | snapshot
parentfd824fcc3d6be6fc9985fd9c02adec6c7e275be8commit | diff
sparc32: fix register window handling in genregs32_[gs]et()

It needs access_process_vm() if the traced process does not share
mm with the caller.  Solution is similar to what sparc64 does.
Note that genregs32_set() is only ever called with pos being 0
or 32 * sizeof(u32) (the latter - as part of PTRACE_SETREGS
handling).

Cc: stable@kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
arch/sparc/kernel/ptrace_32.c diff | blob | history
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