Commit b071cc35 authored by Karan Sanghavi's avatar Karan Sanghavi Committed by Andrew Morton
Browse files

mm: shmem: use signed int for version handling in casefold option 

Fixes an issue where the use of an unsigned data type in
`shmem_parse_opt_casefold()` caused incorrect evaluation of negative
conditions.

Link: https://lkml.kernel.org/r/20250111-unsignedcompare1601569-v3-1-c861b4221831@gmail.com


Fixes: 58e55efd ("tmpfs: Add casefold lookup support")
Reviewed-by: default avatarAndré Almeida <andrealmeid@igalia.com>
Reviewed-by: default avatarGabriel Krisman Bertazi <gabriel@krisman.be>
Signed-off-by: default avatarKaran Sanghavi <karansanghvi98@gmail.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Hugh Dickens <hughd@google.com>
Cc: Shuah khan <skhan@linuxfoundation.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 05c82ee3

mm/shmem.c

+1 −1
Original line number Diff line number Diff line
@@ -4368,7 +4368,7 @@ static int shmem_parse_opt_casefold(struct fs_context *fc, struct fs_parameter * 
				    bool latest_version)

{

	struct shmem_options *ctx = fc->fs_private;

	unsigned int version = UTF8_LATEST;

	int version = UTF8_LATEST;

	struct unicode_map *encoding;

	char *version_str = param->string + 5;