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parisc: io_pgetevents_time64() needs compat syscall in 32-bit compat mode
commit 6431e92fc8
upstream.
For all syscalls in 32-bit compat mode on 64-bit kernels the upper
32-bits of the 64-bit registers are zeroed out, so a negative 32-bit
signed value will show up as positive 64-bit signed value.
This behaviour breaks the io_pgetevents_time64() syscall which expects
signed 64-bit values for the "min_nr" and "nr" parameters.
Fix this by switching to the compat_sys_io_pgetevents_time64() syscall,
which uses "compat_long_t" types for those parameters.
Cc: <stable@vger.kernel.org> # v5.1+
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 1 additions and 1 deletions
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412 32 utimensat_time64 sys_utimensat sys_utimensat
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413 32 pselect6_time64 sys_pselect6 compat_sys_pselect6_time64
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414 32 ppoll_time64 sys_ppoll compat_sys_ppoll_time64
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416 32 io_pgetevents_time64 sys_io_pgetevents sys_io_pgetevents
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416 32 io_pgetevents_time64 sys_io_pgetevents compat_sys_io_pgetevents_time64
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417 32 recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64
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418 32 mq_timedsend_time64 sys_mq_timedsend sys_mq_timedsend
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419 32 mq_timedreceive_time64 sys_mq_timedreceive sys_mq_timedreceive
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