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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:17:52 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:17:52 +0000 |
| commit | 3afb00d3f86d3d924f88b56fa8285d4e9db85852 (patch) | |
| tree | 95a985d3019522cea546b7d8df621369bc44fc6c /arch/x86/kernel/shstk.c | |
| parent | Adding debian version 6.9.12-1. (diff) | |
| download | linux-3afb00d3f86d3d924f88b56fa8285d4e9db85852.tar.xz linux-3afb00d3f86d3d924f88b56fa8285d4e9db85852.zip | |
Merging upstream version 6.10.3.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/x86/kernel/shstk.c')
| -rw-r--r-- | arch/x86/kernel/shstk.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/x86/kernel/shstk.c b/arch/x86/kernel/shstk.c index 59e15dd8d0..9797d4cdb7 100644 --- a/arch/x86/kernel/shstk.c +++ b/arch/x86/kernel/shstk.c @@ -163,8 +163,8 @@ static int shstk_setup(void) if (features_enabled(ARCH_SHSTK_SHSTK)) return 0; - /* Also not supported for 32 bit and x32 */ - if (!cpu_feature_enabled(X86_FEATURE_USER_SHSTK) || in_32bit_syscall()) + /* Also not supported for 32 bit */ + if (!cpu_feature_enabled(X86_FEATURE_USER_SHSTK) || in_ia32_syscall()) return -EOPNOTSUPP; size = adjust_shstk_size(0); @@ -577,3 +577,14 @@ long shstk_prctl(struct task_struct *task, int option, unsigned long arg2) return wrss_control(true); return -EINVAL; } + +int shstk_update_last_frame(unsigned long val) +{ + unsigned long ssp; + + if (!features_enabled(ARCH_SHSTK_SHSTK)) + return 0; + + ssp = get_user_shstk_addr(); + return write_user_shstk_64((u64 __user *)ssp, (u64)val); +} |