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UPSTREAM: kfence: fix printk format for ptrdiff_t

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Use %td for ptrdiff_t.

Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Marco Elver <[email protected]>
Reported-by: Christophe Leroy <[email protected]>
Reviewed-by: Alexander Potapenko <[email protected]>
Cc: Dmitriy Vyukov <[email protected]>
Cc: Andrey Konovalov <[email protected]>
Cc: Jann Horn <[email protected]>
Cc: Christophe Leroy <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Bug: 172317151
Test: build and run on an ARM64 device
(cherry picked from commit 702b16d724a61cb97461f403d7a2da29324471b3)
Signed-off-by: Alexander Potapenko <[email protected]>
Change-Id: I49c7a8ed6dfecceafd4e25e979c6dd58b1d2dbe2
This commit is contained in:
Marco Elver 2021-03-12 21:07:50 -08:00 • committed by Michael Bestas
commit 7e67299a8b
No known key found for this signature in database
GPG key ID: CC95044519BE6669
1 changed files with 6 additions and 6 deletions
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12
mm/kfence/report.c
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@ -116,12 +116,12 @@ void kfence_print_object(struct seq_file *seq, const struct kfence_metadata *met
lockdep_assert_held(&meta->lock);
if (meta->state == KFENCE_OBJECT_UNUSED) {
seq_con_printf(seq, "kfence-#%zd unused\n", meta - kfence_metadata);
seq_con_printf(seq, "kfence-#%td unused\n", meta - kfence_metadata);
return;
}
seq_con_printf(seq,
"kfence-#%zd [0x%p-0x%p"
"kfence-#%td [0x%p-0x%p"
", size=%d, cache=%s] allocated by task %d:\n",
meta - kfence_metadata, (void *)start, (void *)(start + size - 1), size,
(cache && cache->name) ? cache->name : "<destroyed>", meta->alloc_track.pid);
@ -204,7 +204,7 @@ void kfence_report_error(unsigned long address, bool is_write, struct pt_regs *r
pr_err("BUG: KFENCE: out-of-bounds %s in %pS\n\n", get_access_type(is_write),
(void *)stack_entries[skipnr]);
pr_err("Out-of-bounds %s at 0x%p (%luB %s of kfence-#%zd):\n",
pr_err("Out-of-bounds %s at 0x%p (%luB %s of kfence-#%td):\n",
get_access_type(is_write), (void *)address,
left_of_object ? meta->addr - address : address - meta->addr,
left_of_object ? "left" : "right", object_index);
@ -213,14 +213,14 @@ void kfence_report_error(unsigned long address, bool is_write, struct pt_regs *r
case KFENCE_ERROR_UAF:
pr_err("BUG: KFENCE: use-after-free %s in %pS\n\n", get_access_type(is_write),
(void *)stack_entries[skipnr]);
pr_err("Use-after-free %s at 0x%p (in kfence-#%zd):\n",
pr_err("Use-after-free %s at 0x%p (in kfence-#%td):\n",
get_access_type(is_write), (void *)address, object_index);
break;
case KFENCE_ERROR_CORRUPTION:
pr_err("BUG: KFENCE: memory corruption in %pS\n\n", (void *)stack_entries[skipnr]);
pr_err("Corrupted memory at 0x%p ", (void *)address);
print_diff_canary(address, 16, meta);
pr_cont(" (in kfence-#%zd):\n", object_index);
pr_cont(" (in kfence-#%td):\n", object_index);
break;
case KFENCE_ERROR_INVALID:
pr_err("BUG: KFENCE: invalid %s in %pS\n\n", get_access_type(is_write),
@ -230,7 +230,7 @@ void kfence_report_error(unsigned long address, bool is_write, struct pt_regs *r
break;
case KFENCE_ERROR_INVALID_FREE:
pr_err("BUG: KFENCE: invalid free in %pS\n\n", (void *)stack_entries[skipnr]);
pr_err("Invalid free of 0x%p (in kfence-#%zd):\n", (void *)address,
pr_err("Invalid free of 0x%p (in kfence-#%td):\n", (void *)address,
object_index);
break;
}