kernel/sys.c: fix UNAME26 for 4.0
There's a uname workaround for broken userspace which can't handle kernel versions of 3.x. Update it for 4.x. Signed-off-by: Jon DeVree <nuxi@vault24.org> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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1 changed files with 2 additions and 1 deletions
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@ -1108,6 +1108,7 @@ DECLARE_RWSEM(uts_sem);
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/*
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* Work around broken programs that cannot handle "Linux 3.0".
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* Instead we map 3.x to 2.6.40+x, so e.g. 3.0 would be 2.6.40
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* And we map 4.x to 2.6.60+x, so 4.0 would be 2.6.60.
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*/
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static int override_release(char __user *release, size_t len)
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{
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@ -1127,7 +1128,7 @@ static int override_release(char __user *release, size_t len)
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break;
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rest++;
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}
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v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 40;
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v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 60;
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copy = clamp_t(size_t, len, 1, sizeof(buf));
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copy = scnprintf(buf, copy, "2.6.%u%s", v, rest);
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ret = copy_to_user(release, buf, copy + 1);
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