Commit 9af7706492f9 ("lib/vsprintf: Remove support for %pF and %pf in
favour of %pS and %ps") removed support for %pF and %pf, and correctly
removed the handling of those cases in vbin_printf(). However, the
corresponding cases in bstr_printf() were left behind.
In the same series, %pf was re-purposed for dealing with
fwnodes (3bd32d6a2ee6, "lib/vsprintf: Add %pfw conversion specifier
for printing fwnode names").
So should anyone use %pf with the binary printf routines,
vbin_printf() would (correctly, as it involves dereferencing the
pointer) do the string formatting to the u32 array, but bstr_printf()
would not copy the string from the u32 array, but instead interpret
the first sizeof(void*) bytes of the formatted string as a pointer -
which generally won't end well (also, all subsequent get_args would be
out of sync).
Fixes: 9af7706492f9 ("lib/vsprintf: Remove support for %pF and %pf in favour of %pS and %ps")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
---
lib/vsprintf.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 41ddc353ebb8..39ef2e314da5 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -3135,8 +3135,6 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
switch (*fmt) {
case 'S':
case 's':
- case 'F':
- case 'f':
case 'x':
case 'K':
case 'e':
--
2.29.2
