projects / thirdparty / kernel / stable-queue.git / blame
| Commit | Line | Data |
|---|---|---|
| 742f5e89 GKH |
1 | From foo@baz Tue Apr 9 07:32:41 PM CEST 2024 |
| 2 | Date: Tue, 09 Apr 2024 19:32:41 +0200 | |
| 3 | To: Greg KH <gregkh@linuxfoundation.org> | |
| 4 | From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| 5 | Subject: x86: set SPECTRE_BHI_ON as default | |
| 6 | ||
| 7 | commit 2bb69f5fc72183e1c62547d900f560d0e9334925 upstream. | |
| 8 | ||
| 9 | Part of a merge commit from Linus that adjusted the default setting of | |
| 10 | SPECTRE_BHI_ON. | |
| 11 | ||
| 12 | Cc: Linus Torvalds <torvalds@linux-foundation.org> | |
| 13 | Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| 14 | --- | |
| 15 | arch/x86/Kconfig | 2 +- | |
| 16 | 1 file changed, 1 insertion(+), 1 deletion(-) | |
| 17 | ||
| 18 | --- a/arch/x86/Kconfig | |
| 19 | +++ b/arch/x86/Kconfig | |
| 20 | @@ -2569,7 +2569,7 @@ config MITIGATION_RFDS | |
| 21 | choice | |
| 22 | prompt "Clear branch history" | |
| 23 | depends on CPU_SUP_INTEL | |
| 24 | - default SPECTRE_BHI_AUTO | |
| 25 | + default SPECTRE_BHI_ON | |
| 26 | help | |
| 27 | Enable BHI mitigations. BHI attacks are a form of Spectre V2 attacks | |
| 28 | where the branch history buffer is poisoned to speculatively steer |