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Mon, 27 Jul 2026 03:41:11 -0700 (PDT) Received: from 7cf34ddc0813.ant.amazon.com ([54.222.46.5]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-38f2951f0afsm2901041a91.16.2026.07.27.03.41.08 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 27 Jul 2026 03:41:10 -0700 (PDT) From: Jiazi Liu X-Google-Original-From: Jiazi Liu To: tytso@mit.edu Cc: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Jiazi Liu Subject: [PATCH 1/1] ext4: fix incorrect function call when initializing s_resgid Date: Mon, 27 Jul 2026 18:41:03 +0800 Message-ID: <20260727104103.28916-1-liujiazi@amazon.com> X-Mailer: git-send-email 2.50.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit In __ext4_fill_super(), s_resgid is initialized by calling ext4_get_resuid() instead of ext4_get_resgid(), resulting in the reserved GID being set to the same value as the reserved UID rather than the value stored in the superblock. Fixes: 12c84dd4d308 ("ext4: add support for 32-bit default reserved uid and gid values") Cc: stable@vger.kernel.org Signed-off-by: Jiazi Liu --- fs/ext4/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 6c18b5adffca..a187112cafaf 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -5380,7 +5380,7 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb) ext4_set_def_opts(sb, es); sbi->s_resuid = make_kuid(&init_user_ns, ext4_get_resuid(es)); - sbi->s_resgid = make_kgid(&init_user_ns, ext4_get_resuid(es)); + sbi->s_resgid = make_kgid(&init_user_ns, ext4_get_resgid(es)); sbi->s_commit_interval = JBD2_DEFAULT_MAX_COMMIT_AGE * HZ; sbi->s_min_batch_time = EXT4_DEF_MIN_BATCH_TIME; sbi->s_max_batch_time = EXT4_DEF_MAX_BATCH_TIME; -- 2.50.1 (Apple Git-155)