This is a note to let you know that I've just added the patch titled
um: Fix the return value of elf_core_copy_task_fpregs
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
um-fix-the-return-value-of-elf_core_copy_task_fpregs.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 364ec6f76fc5cec7c93883225c9642e841fd357d
Author: Tiwei Bie <tiwei.btw@xxxxxxxxxxxx>
Date: Fri Sep 13 10:33:02 2024 +0800
um: Fix the return value of elf_core_copy_task_fpregs
[ Upstream commit 865e3845eeaa21e9a62abc1361644e67124f1ec0 ]
This function is expected to return a boolean value, which should be
true on success and false on failure.
Fixes: d1254b12c93e ("uml: fix x86_64 core dump crash")
Signed-off-by: Tiwei Bie <tiwei.btw@xxxxxxxxxxxx>
Link: https://patch.msgid.link/20240913023302.130300-1-tiwei.btw@xxxxxxxxxxxx
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index f185d19fd9b60..16460c58f3e2f 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -444,6 +444,6 @@ int elf_core_copy_fpregs(struct task_struct *t, elf_fpregset_t *fpu)
{
int cpu = current_thread_info()->cpu;
- return save_i387_registers(userspace_pid[cpu], (unsigned long *) fpu);
+ return save_i387_registers(userspace_pid[cpu], (unsigned long *) fpu) == 0;
}
