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set_mempolicy(): Add mode check.

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Fix a problem that does not result in an error even
if MPOL_F_STATIC_NODES and MPOL_F_RELATIVE_NODES are
simultaneously specified in set_mempolicy() mode.

Change-Id: I06e695baf869daee8bc64179748cac27b64e914b
Fujitsu: POSTK_DEBUG_TEMP_FIX_99
This commit is contained in:
Shiratori, Takehiro
2018-10-17 15:08:28 +09:00
committed by Dominique Martinet
parent 6626204c99
commit 04e0456232
1 changed files with 5 additions and 0 deletions
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5
kernel/syscall.c
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@ -8706,6 +8706,11 @@ SYSCALL_DECLARE(set_mempolicy)
}
}
if ((mode & MPOL_F_STATIC_NODES) &&
(mode & MPOL_F_RELATIVE_NODES)) {
error = -EINVAL;
goto out;
}
mode &= ~MPOL_MODE_FLAGS;
switch (mode) {