mirror of https://github.com/dynup/kpatch
26 lines
808 B
Diff
26 lines
808 B
Diff
diff -Nupr src.orig/kernel/sys.c src/kernel/sys.c
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--- src.orig/kernel/sys.c 2022-04-29 16:10:59.577343400 -0400
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+++ src/kernel/sys.c 2022-04-29 16:10:59.917344609 -0400
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@@ -1241,14 +1241,18 @@ static int override_release(char __user
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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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