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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Theodore Tso <tytso@mit.edu>,
	Dan Carpenter <dan.carpenter@oracle.com>,
	stable@kernel.org, Guenter Roeck <linux@roeck-us.net>
Subject: [PATCH 4.4 01/18] ext4: fix special inode number checks in __ext4_iget()
Date: Mon,  4 May 2020 19:56:59 +0200	[thread overview]
Message-ID: <20200504165441.879121107@linuxfoundation.org> (raw)
In-Reply-To: <20200504165441.533160703@linuxfoundation.org>

From: Theodore Ts'o <tytso@mit.edu>

commit 191ce17876c9367819c4b0a25b503c0f6d9054d8 upstream.

The check for special (reserved) inode number checks in __ext4_iget()
was broken by commit 8a363970d1dc: ("ext4: avoid declaring fs
inconsistent due to invalid file handles").  This was caused by a
botched reversal of the sense of the flag now known as
EXT4_IGET_SPECIAL (when it was previously named EXT4_IGET_NORMAL).
Fix the logic appropriately.

Fixes: 8a363970d1dc ("ext4: avoid declaring fs inconsistent...")
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable@kernel.org
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/ext4/inode.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4233,7 +4233,7 @@ struct inode *__ext4_iget(struct super_b
 	uid_t i_uid;
 	gid_t i_gid;
 
-	if (((flags & EXT4_IGET_NORMAL) &&
+	if ((!(flags & EXT4_IGET_SPECIAL) &&
 	     (ino < EXT4_FIRST_INO(sb) && ino != EXT4_ROOT_INO)) ||
 	    (ino < EXT4_ROOT_INO) ||
 	    (ino > le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count))) {



  reply	other threads:[~2020-05-04 17:58 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-04 17:56 [PATCH 4.4 00/18] 4.4.222-rc1 review Greg Kroah-Hartman
2020-05-04 17:56 ` Greg Kroah-Hartman [this message]
2020-05-04 17:57 ` [PATCH 4.4 02/18] drm/qxl: qxl_release leak in qxl_hw_surface_alloc() Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 03/18] ALSA: pcm: oss: Place the plugin buffer overflow checks correctly Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 04/18] PM: ACPI: Output correct message on target power state Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 05/18] RDMA/mlx4: Initialize ib_spec on the stack Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 06/18] vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 07/18] ALSA: opti9xx: shut up gcc-10 range warning Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 08/18] nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 09/18] dmaengine: dmatest: Fix iteration non-stop logic Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 10/18] i2c: designware-pci: use IRQF_COND_SUSPEND flag Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 11/18] perf hists: Fix HISTC_MEM_DCACHELINE width setting Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 12/18] powerpc/perf: Remove PPMU_HAS_SSLOT flag for Power8 Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 13/18] perf/x86: Fix uninitialized value usage Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 14/18] [media] exynos4-is: fix a format string bug Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 15/18] ASoC: wm8960: Fix WM8960_SYSCLK_PLL mode Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 16/18] ASoC: imx-spdif: Fix crash on suspend Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 17/18] ipv6: use READ_ONCE() for inet->hdrincl as in ipv4 Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.4 18/18] selinux: properly handle multiple messages in selinux_netlink_send() Greg Kroah-Hartman
2020-05-05  7:43 ` [PATCH 4.4 00/18] 4.4.222-rc1 review Chris Paterson
2020-05-05  8:36 ` Jon Hunter
2020-05-05 15:41 ` Guenter Roeck
2020-05-05 15:50 ` Naresh Kamboju

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