From: Nam Cao namcaov@gmail.com
stable inclusion from stable-v6.6.3 commit a08b414d1ecec1ddc22b2d87f5c189aab1b3097b category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8LBQP
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit 87615e95f6f9ccd36d4a3905a2d87f91967ea9d2 upstream.
The interrupt entries are expected to be in the .irqentry.text section. For example, for kprobes to work properly, exception code cannot be probed; this is ensured by blacklisting addresses in the .irqentry.text section.
Fixes: 7db91e57a0ac ("RISC-V: Task implementation") Signed-off-by: Nam Cao namcaov@gmail.com Link: https://lore.kernel.org/r/20230821145708.21270-1-namcaov@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt palmer@rivosinc.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- arch/riscv/kernel/entry.S | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S index 3d11aa3af105..278d01d2911f 100644 --- a/arch/riscv/kernel/entry.S +++ b/arch/riscv/kernel/entry.S @@ -16,6 +16,8 @@ #include <asm/errata_list.h> #include <linux/sizes.h>
+ .section .irqentry.text, "ax" + SYM_CODE_START(handle_exception) /* * If coming from userspace, preserve the user thread pointer and load