Re: [PATCH v2] riscv: Fix a NULL pointer reference in machine_kexec_prepare
Pratyush Yadav <[email protected]>
| Newsgroups | org.infradead.lists.kexec,org.infradead.lists.linux-riscv,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
On Sun, Jun 28 2026, Tao Liu wrote: > A NULL pointer reference issue is noticed in riscv's machine_kexec_prepare, > where image->segment[i].buf might be NULL and copied unchecked. > > The NULL buf comes from security/integrity/ima/ima_kexec.c: > ima_add_kexec_buffer(), where kbuf is added by kexec_add_buffer(), > but kbuf.buffer is NULL. > > Fix this by simply adding a check before copy. > > Acked-by: Baoquan He <[email protected]> > Signed-off-by: Tao Liu <[email protected]> Acked-by: Pratyush Yadav <[email protected]> [...] -- Regards, Pratyush Yadav