lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:   Fri,  1 Mar 2019 18:15:04 +0100
From:   Lukas Czerner <lczerner@...hat.com>
To:     linux-ext4@...r.kernel.org
Subject: [PATCH] ext4: Add missing brelse() in add_new_gdb_meta_bg()

Currently in add_new_gdb_meta_bg() there is a missing brelse of gdb_bh
in case ext4_journal_get_write_access() fails. Fix it.

Fixes: 61a9c11e5e7a ("ext4: add missing brelse() add_new_gdb_meta_bg()'s error path")
Signed-off-by: Lukas Czerner <lczerner@...hat.com>
---
 fs/ext4/resize.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 48421de803b7..e945f412cf58 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -937,6 +937,8 @@ static int add_new_gdb_meta_bg(struct super_block *sb,
 	kvfree(o_group_desc);
 	BUFFER_TRACE(gdb_bh, "get_write_access");
 	err = ext4_journal_get_write_access(handle, gdb_bh);
+	if (err)
+		brelse(gdb_bh);
 	return err;
 }
 
-- 
2.20.1

Powered by blists - more mailing lists