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| author | Russell King <rmk+kernel@armlinux.org.uk> | 2018-10-15 11:32:12 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-18 09:16:27 +0200 |
| commit | b690ec0dc735545bca2b78bee639d1545bda97e6 (patch) | |
| tree | cb6e77dc66073faf08ee69426af41f5acd55a870 /tools/perf/builtin-script.c | |
| parent | 4186f7cfa1d6083e969638c8e98b205163da7e2a (diff) | |
| download | linux-stable-b690ec0dc735545bca2b78bee639d1545bda97e6.tar.gz linux-stable-b690ec0dc735545bca2b78bee639d1545bda97e6.tar.bz2 linux-stable-b690ec0dc735545bca2b78bee639d1545bda97e6.zip | |
ARM: spectre-v1: fix syscall entry
Commit 10573ae547c85b2c61417ff1a106cffbfceada35 upstream.
Prevent speculation at the syscall table decoding by clamping the index
used to zero on invalid system call numbers, and using the csdb
speculative barrier.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Boot-tested-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David A. Long <dave.long@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/builtin-script.c')
0 files changed, 0 insertions, 0 deletions