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[PW_SID:996013] kexec: Fix invalid field access #841

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[PW_SID:996013] kexec: Fix invalid field access #841

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d129562
arm64: kexec: Initialize kexec_buf struct in load_other_segments()
leitao Aug 27, 2025
6cfd2ac
riscv: kexec: Initialize kexec_buf struct
leitao Aug 27, 2025
776f2ff
s390: kexec: Initialize kexec_buf struct
leitao Aug 27, 2025
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2 changes: 1 addition & 1 deletion arch/arm64/kernel/machine_kexec_file.c
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Original file line number Diff line number Diff line change
Expand Up @@ -94,7 +94,7 @@ int load_other_segments(struct kimage *image,
char *initrd, unsigned long initrd_len,
char *cmdline)
{
struct kexec_buf kbuf;
struct kexec_buf kbuf = {};
void *dtb = NULL;
unsigned long initrd_load_addr = 0, dtb_len,
orig_segments = image->nr_segments;
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4 changes: 2 additions & 2 deletions arch/riscv/kernel/kexec_elf.c
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Expand Up @@ -28,7 +28,7 @@ static int riscv_kexec_elf_load(struct kimage *image, struct elfhdr *ehdr,
int i;
int ret = 0;
size_t size;
struct kexec_buf kbuf;
struct kexec_buf kbuf = {};
const struct elf_phdr *phdr;

kbuf.image = image;
Expand Down Expand Up @@ -66,7 +66,7 @@ static int elf_find_pbase(struct kimage *image, unsigned long kernel_len,
{
int i;
int ret;
struct kexec_buf kbuf;
struct kexec_buf kbuf = {};
const struct elf_phdr *phdr;
unsigned long lowest_paddr = ULONG_MAX;
unsigned long lowest_vaddr = ULONG_MAX;
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2 changes: 1 addition & 1 deletion arch/riscv/kernel/kexec_image.c
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Expand Up @@ -41,7 +41,7 @@ static void *image_load(struct kimage *image,
struct riscv_image_header *h;
u64 flags;
bool be_image, be_kernel;
struct kexec_buf kbuf;
struct kexec_buf kbuf = {};
int ret;

/* Check Image header */
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2 changes: 1 addition & 1 deletion arch/riscv/kernel/machine_kexec_file.c
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Expand Up @@ -261,7 +261,7 @@ int load_extra_segments(struct kimage *image, unsigned long kernel_start,
int ret;
void *fdt;
unsigned long initrd_pbase = 0UL;
struct kexec_buf kbuf;
struct kexec_buf kbuf = {};
char *modified_cmdline = NULL;

kbuf.image = image;
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2 changes: 1 addition & 1 deletion arch/s390/kernel/kexec_elf.c
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Expand Up @@ -16,7 +16,7 @@
static int kexec_file_add_kernel_elf(struct kimage *image,
struct s390_load_data *data)
{
struct kexec_buf buf;
struct kexec_buf buf = {};
const Elf_Ehdr *ehdr;
const Elf_Phdr *phdr;
Elf_Addr entry;
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2 changes: 1 addition & 1 deletion arch/s390/kernel/kexec_image.c
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Expand Up @@ -16,7 +16,7 @@
static int kexec_file_add_kernel_image(struct kimage *image,
struct s390_load_data *data)
{
struct kexec_buf buf;
struct kexec_buf buf = {};

buf.image = image;

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6 changes: 3 additions & 3 deletions arch/s390/kernel/machine_kexec_file.c
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Expand Up @@ -129,7 +129,7 @@ static int kexec_file_update_purgatory(struct kimage *image,
static int kexec_file_add_purgatory(struct kimage *image,
struct s390_load_data *data)
{
struct kexec_buf buf;
struct kexec_buf buf = {};
int ret;

buf.image = image;
Expand All @@ -152,7 +152,7 @@ static int kexec_file_add_purgatory(struct kimage *image,
static int kexec_file_add_initrd(struct kimage *image,
struct s390_load_data *data)
{
struct kexec_buf buf;
struct kexec_buf buf = {};
int ret;

buf.image = image;
Expand Down Expand Up @@ -184,7 +184,7 @@ static int kexec_file_add_ipl_report(struct kimage *image,
{
__u32 *lc_ipl_parmblock_ptr;
unsigned int len, ncerts;
struct kexec_buf buf;
struct kexec_buf buf = {};
unsigned long addr;
void *ptr, *end;
int ret;
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