mirror of
https://github.com/dynup/kpatch
synced 2025-04-17 04:25:57 +00:00
373993ec1c
Add ".kpatch" to the end of "uname -s". Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
27 lines
782 B
Diff
27 lines
782 B
Diff
diff --git a/kernel/sys.c b/kernel/sys.c
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index 1fbf388279832..b5186aa83adfa 100644
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--- a/kernel/sys.c
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+++ b/kernel/sys.c
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@@ -1392,14 +1392,18 @@ static int override_release(char __user *release, size_t len)
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return ret;
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}
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-SYSCALL_DEFINE1(newuname, struct new_utsname __user *, name)
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+#include "kpatch-syscall.h"
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+KPATCH_SYSCALL_DEFINE1(newuname, struct new_utsname __user *, name)
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{
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+ struct new_utsname tmp;
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int errno = 0;
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down_read(&uts_sem);
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- if (copy_to_user(name, utsname(), sizeof *name))
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- errno = -EFAULT;
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+ memcpy(&tmp, utsname(), sizeof(tmp));
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up_read(&uts_sem);
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+ strcat(tmp.sysname, ".kpatch");
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+ if (copy_to_user(name, &tmp, sizeof(tmp)))
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+ errno = -EFAULT;
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if (!errno && override_release(name->release, sizeof(name->release)))
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errno = -EFAULT;
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