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authorThomas Zimmermann <tzimmermann@suse.de>2025-02-25 11:43:10 +0100
committerThomas Zimmermann <tzimmermann@suse.de>2025-02-25 11:43:10 +0100
commit130377304ed09e54ff35a8974372498aad7059f3 (patch)
treedeac7244baf40d11bd3976416d6e1c656fad3ac7 /arch/um/kernel/process.c
parent40115947b59f2ca361a47615304dff0a2b69a2b4 (diff)
parentfb51bf02551958265b7116f6ba92752295c83c26 (diff)
Merge drm/drm-next into drm-misc-next
Backmerging to get fixes from v6.14-rc4. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'arch/um/kernel/process.c')
-rw-r--r--arch/um/kernel/process.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index e5a2d4d897e0..0cd6fad3d908 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -191,7 +191,15 @@ void initial_thread_cb(void (*proc)(void *), void *arg)
int arch_dup_task_struct(struct task_struct *dst,
struct task_struct *src)
{
- memcpy(dst, src, arch_task_struct_size);
+ /* init_task is not dynamically sized (missing FPU state) */
+ if (unlikely(src == &init_task)) {
+ memcpy(dst, src, sizeof(init_task));
+ memset((void *)dst + sizeof(init_task), 0,
+ arch_task_struct_size - sizeof(init_task));
+ } else {
+ memcpy(dst, src, arch_task_struct_size);
+ }
+
return 0;
}