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([2804:30c:166c:ce00:217:3714:c805:7cb]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-27ed6ad15e6sm28447355ad.143.2025.09.25.08.54.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Sep 2025 08:54:37 -0700 (PDT) From: Pedro Demarchi Gomes To: linkinjeon@kernel.org, sj1557.seo@samsung.com, yuezhang.mo@sony.com Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Pedro Demarchi Gomes , syzbot+3e9cb93e3c5f90d28e19@syzkaller.appspotmail.com Subject: [PATCH] exfat: check for utf8 option change in exfat_reconfigure Date: Thu, 25 Sep 2025 12:53:06 -0300 Message-ID: <20250925155306.394763-1-pedrodemargomes@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Check for utf8 option change since it depends on iocharset Reported-by: syzbot+3e9cb93e3c5f90d28e19@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=3D3e9cb93e3c5f90d28e19 Signed-off-by: Pedro Demarchi Gomes --- fs/exfat/super.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/exfat/super.c b/fs/exfat/super.c index e1cffa46eb73..500eb9c20657 100644 --- a/fs/exfat/super.c +++ b/fs/exfat/super.c @@ -762,6 +762,7 @@ static int exfat_reconfigure(struct fs_context *fc) * inodes or dentries, they cannot be modified dynamically. */ if (strcmp(new_opts->iocharset, cur_opts->iocharset) || + new_opts->utf8 !=3D cur_opts->utf8 || new_opts->keep_last_dots !=3D cur_opts->keep_last_dots || new_opts->sys_tz !=3D cur_opts->sys_tz || new_opts->time_offset !=3D cur_opts->time_offset || --=20 2.43.0