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| author |   Peter Zijlstra <peterz@infradead.org> | 2022-07-14 12:20:19 +0200 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2022-07-14 13:40:21 +0200 |
| commit | 564d998106397394b6aad260f219b882b3347e62 (patch) | |
| tree | 5051808f23bc0cf3ba9262ddd62ed9458ec4c629 /arch/um/kernel/um_arch.c | |
| parent | x86/entry: Remove UNTRAIN_RET from native_irq_return_ldt (diff) | |
| download | linux-dev-564d998106397394b6aad260f219b882b3347e62.tar.xz linux-dev-564d998106397394b6aad260f219b882b3347e62.zip | |
um: Add missing apply_returns()
Implement apply_returns() stub for UM, just like all the other patching
routines.
Fixes: 15e67227c49a ("x86: Undo return-thunk damage")
Reported-by: Randy Dunlap <rdunlap@infradead.org)
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/Ys%2Ft45l%2FgarIrD0u@worktop.programming.kicks-ass.net
Diffstat (limited to '')
| -rw-r--r-- | arch/um/kernel/um_arch.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index 0760e24f2eba..9838967d0b2f 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -432,6 +432,10 @@ void apply_retpolines(s32 *start, s32 *end) { } +void apply_returns(s32 *start, s32 *end) +{ +} + void apply_alternatives(struct alt_instr *start, struct alt_instr *end) { } |