Peter Zijlstra 2105a92748 static_call,x86: Robustify trampoline patching ... Add a few signature bytes after the static call trampoline and verify those bytes match before patching the trampoline. This avoids patching random other JMPs (such as CFI jump-table entries) instead. These bytes decode as: d: 53 push %rbx e: 43 54 rex.XB push %r12 And happen to spell "SCT". Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20211030074758.GT174703@worktop.programming.kicks-ass.net		2021-11-11 13:09:31 +01:00
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check.c	static_call,x86: Robustify trampoline patching	2021-11-11 13:09:31 +01:00
elf.c
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objtool.c
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