Namjae Jeon c2fdf827f8 exfat: check if filename entries exceeds max filename length ... [ Upstream commit d42334578e ] exfat_extract_uni_name copies characters from a given file name entry into the 'uniname' variable. This variable is actually defined on the stack of the exfat_readdir() function. According to the definition of the 'exfat_uni_name' type, the file name should be limited 255 characters (+ null teminator space), but the exfat_get_uniname_from_ext_entry() function can write more characters because there is no check if filename entries exceeds max filename length. This patch add the check not to copy filename characters when exceeding max filename length. Cc: stable@vger.kernel.org Cc: Yuezhang Mo <Yuezhang.Mo@sony.com> Reported-by: Maxim Suhanov <dfirblog@gmail.com> Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-08-11 12:08:26 +02:00
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balloc.c	exfat: use kvmalloc_array/kvfree instead of kmalloc_array/kfree	2023-08-11 12:08:19 +02:00
cache.c	exfat: fix use of uninitialized spinlock on error path	2020-10-07 14:27:13 +09:00
dir.c	exfat: check if filename entries exceeds max filename length	2023-08-11 12:08:26 +02:00
exfat_fs.h	exfat: redefine DIR_DELETED as the bad cluster number	2023-03-10 09:34:08 +01:00
exfat_raw.h	exfat: fix shift-out-of-bounds in exfat_fill_super()	2021-02-22 09:55:13 +09:00
fatent.c	exfat: fix overflow for large capacity partition	2022-09-04 09:38:40 +09:00
file.c	exfat: fix inode->i_blocks for non-512 byte sector size device	2023-03-10 09:34:08 +01:00
inode.c	exfat: fix inode->i_blocks for non-512 byte sector size device	2023-03-10 09:34:08 +01:00
Kconfig	exfat: Improve wording of EXFAT_DEFAULT_IOCHARSET config option	2020-06-09 16:48:39 +09:00
Makefile	exfat: add Kconfig and Makefile	2020-03-05 21:00:40 -05:00
misc.c	exfat: Expand exfat_err() and co directly to pr_*() macro	2022-08-01 10:14:07 +09:00
namei.c	exfat: fix inode->i_blocks for non-512 byte sector size device	2023-03-10 09:34:08 +01:00
nls.c	exfat: Drop superfluous new line for error messages	2022-08-01 10:14:07 +09:00
super.c	exfat: fix inode->i_blocks for non-512 byte sector size device	2023-03-10 09:34:08 +01:00