From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Yuezhang Mo <Yuezhang.Mo@sony.com>,
Andy Wu <Andy.Wu@sony.com>,
Aoyama Wataru <wataru.aoyama@sony.com>,
Daniel Palmer <daniel.palmer@sony.com>,
Sungjong Seo <sj1557.seo@samsung.com>,
Namjae Jeon <linkinjeon@kernel.org>
Subject: [PATCH 5.18 09/67] exfat: fix referencing wrong parent directory information after renaming
Date: Fri, 3 Jun 2022 19:43:10 +0200 [thread overview]
Message-ID: <20220603173821.000877880@linuxfoundation.org> (raw)
In-Reply-To: <20220603173820.731531504@linuxfoundation.org>
From: Yuezhang Mo <Yuezhang.Mo@sony.com>
commit d8dad2588addd1d861ce19e7df3b702330f0c7e3 upstream.
During renaming, the parent directory information maybe
updated. But the file/directory still references to the
old parent directory information.
This bug will cause 2 problems.
(1) The renamed file can not be written.
[10768.175172] exFAT-fs (sda1): error, failed to bmap (inode : 7afd50e4 iblock : 0, err : -5)
[10768.184285] exFAT-fs (sda1): Filesystem has been set read-only
ash: write error: Input/output error
(2) Some dentries of the renamed file/directory are not set
to deleted after removing the file/directory.
exfat_update_parent_info() is a workaround for the wrong parent
directory information being used after renaming. Now that bug is
fixed, this is no longer needed, so remove it.
Fixes: 5f2aa075070c ("exfat: add inode operations")
Cc: stable@vger.kernel.org # v5.7+
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Daniel Palmer <daniel.palmer@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/exfat/namei.c | 27 +--------------------------
1 file changed, 1 insertion(+), 26 deletions(-)
--- a/fs/exfat/namei.c
+++ b/fs/exfat/namei.c
@@ -1080,6 +1080,7 @@ static int exfat_rename_file(struct inod
exfat_remove_entries(inode, p_dir, oldentry, 0,
num_old_entries);
+ ei->dir = *p_dir;
ei->entry = newentry;
} else {
if (exfat_get_entry_type(epold) == TYPE_FILE) {
@@ -1167,28 +1168,6 @@ static int exfat_move_file(struct inode
return 0;
}
-static void exfat_update_parent_info(struct exfat_inode_info *ei,
- struct inode *parent_inode)
-{
- struct exfat_sb_info *sbi = EXFAT_SB(parent_inode->i_sb);
- struct exfat_inode_info *parent_ei = EXFAT_I(parent_inode);
- loff_t parent_isize = i_size_read(parent_inode);
-
- /*
- * the problem that struct exfat_inode_info caches wrong parent info.
- *
- * because of flag-mismatch of ei->dir,
- * there is abnormal traversing cluster chain.
- */
- if (unlikely(parent_ei->flags != ei->dir.flags ||
- parent_isize != EXFAT_CLU_TO_B(ei->dir.size, sbi) ||
- parent_ei->start_clu != ei->dir.dir)) {
- exfat_chain_set(&ei->dir, parent_ei->start_clu,
- EXFAT_B_TO_CLU_ROUND_UP(parent_isize, sbi),
- parent_ei->flags);
- }
-}
-
/* rename or move a old file into a new file */
static int __exfat_rename(struct inode *old_parent_inode,
struct exfat_inode_info *ei, struct inode *new_parent_inode,
@@ -1219,8 +1198,6 @@ static int __exfat_rename(struct inode *
return -ENOENT;
}
- exfat_update_parent_info(ei, old_parent_inode);
-
exfat_chain_dup(&olddir, &ei->dir);
dentry = ei->entry;
@@ -1241,8 +1218,6 @@ static int __exfat_rename(struct inode *
goto out;
}
- exfat_update_parent_info(new_ei, new_parent_inode);
-
p_dir = &(new_ei->dir);
new_entry = new_ei->entry;
ep = exfat_get_dentry(sb, p_dir, new_entry, &new_bh);
next prev parent reply other threads:[~2022-06-03 18:17 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-03 17:43 [PATCH 5.18 00/67] 5.18.2-rc1 review Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 01/67] netfilter: nf_tables: disallow non-stateful expression in sets earlier Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 02/67] i2c: ismt: prevent memory corruption in ismt_access() Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 03/67] assoc_array: Fix BUG_ON during garbage collect Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 04/67] pipe: make poll_usage boolean and annotate its access Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 05/67] pipe: Fix missing lock in pipe_resize_ring() Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 06/67] net: ipa: compute proper aggregation limit Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 07/67] drm/i915: Fix -Wstringop-overflow warning in call to intel_read_wm_latency() Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 08/67] exfat: check if cluster num is valid Greg Kroah-Hartman
2022-06-03 17:43 ` Greg Kroah-Hartman [this message]
2022-06-03 17:43 ` [PATCH 5.18 10/67] netfilter: nft_limit: Clone packet limits cost value Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 11/67] netfilter: nf_tables: sanitize nft_set_desc_concat_parse() Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 12/67] netfilter: nf_tables: hold mutex on netns pre_exit path Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 13/67] netfilter: nf_tables: double hook unregistration in netns path Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 14/67] netfilter: conntrack: re-fetch conntrack after insertion Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 15/67] KVM: PPC: Book3S HV: fix incorrect NULL check on list iterator Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 16/67] x86/fpu: KVM: Set the base guest FPU uABI size to sizeof(struct kvm_xsave) Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 17/67] x86/kvm: Alloc dummy async #PF token outside of raw spinlock Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 18/67] x86, kvm: use correct GFP flags for preemption disabled Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 19/67] x86/uaccess: Implement macros for CMPXCHG on user addresses Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 20/67] KVM: x86: Use __try_cmpxchg_user() to update guest PTE A/D bits Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 21/67] KVM: x86: Use __try_cmpxchg_user() to emulate atomic accesses Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 22/67] KVM: x86: fix typo in __try_cmpxchg_user causing non-atomicness Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 23/67] KVM: x86: avoid calling x86 emulator without a decoded instruction Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 24/67] KVM: x86: avoid loading a vCPU after .vm_destroy was called Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 25/67] KVM: x86: Fix the intel_pt PMI handling wrongly considered from guest Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 26/67] KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2 Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 27/67] KVM: x86/mmu: Dont rebuild page when the page is synced and no tlb flushing is required Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 28/67] KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 29/67] crypto: caam - fix i.MX6SX entropy delay value Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 30/67] crypto: ecrdsa - Fix incorrect use of vli_cmp Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 31/67] crypto: qat - rework the VF2PF interrupt handling logic Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 32/67] zsmalloc: fix races between asynchronous zspage free and page migration Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 33/67] tools/memory-model/README: Update klitmus7 compat table Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 34/67] ALSA: usb-audio: Workaround for clock setup on TEAC devices Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 35/67] ALSA: usb-audio: Add missing ep_idx in fixed EP quirks Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 36/67] ALSA: usb-audio: Configure sync endpoints before data Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 37/67] Bluetooth: hci_qca: Use del_timer_sync() before freeing Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 38/67] ARM: dts: s5pv210: Correct interrupt name for bluetooth in Aries Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 39/67] dm integrity: fix error code in dm_integrity_ctr() Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 40/67] dm crypt: make printing of the key constant-time Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 41/67] dm stats: add cond_resched when looping over entries Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 42/67] dm verity: set DM_TARGET_IMMUTABLE feature flag Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 43/67] raid5: introduce MD_BROKEN Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 44/67] fs/ntfs3: validate BOOT sectors_per_clusters Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 45/67] HID: multitouch: Add support for Google Whiskers Touchpad Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 46/67] HID: multitouch: add quirks to enable Lenovo X12 trackpoint Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 47/67] x86/sgx: Disconnect backing page references from dirty status Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 48/67] x86/sgx: Mark PCMD page as dirty when modifying contents Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 49/67] x86/sgx: Obtain backing storage page with enclave mutex held Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 50/67] x86/sgx: Fix race between reclaimer and page fault handler Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 51/67] x86/sgx: Ensure no data in PCMD page after truncate Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 52/67] media: i2c: imx412: Fix reset GPIO polarity Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 53/67] media: i2c: imx412: Fix power_off ordering Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 54/67] tpm: Fix buffer access in tpm2_get_tpm_pt() Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 55/67] tpm: ibmvtpm: Correct the return value in tpm_ibmvtpm_probe() Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 56/67] docs: submitting-patches: Fix crossref to The canonical patch format Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 57/67] NFS: Memory allocation failures are not server fatal errors Greg Kroah-Hartman
2022-06-03 17:43 ` [PATCH 5.18 58/67] NFSD: Fix possible sleep during nfsd4_release_lockowner() Greg Kroah-Hartman
2022-06-03 17:44 ` [PATCH 5.18 59/67] bpf: Fill new bpf_prog_pack with illegal instructions Greg Kroah-Hartman
2022-06-03 17:44 ` [PATCH 5.18 60/67] bpf: Fix potential array overflow in bpf_trampoline_get_progs() Greg Kroah-Hartman
2022-06-03 17:44 ` [PATCH 5.18 61/67] bpf: Fix combination of jit blinding and pointers to bpf subprogs Greg Kroah-Hartman
2022-06-03 17:44 ` [PATCH 5.18 62/67] bpf: Enlarge offset check value to INT_MAX in bpf_skb_{load,store}_bytes Greg Kroah-Hartman
2022-06-03 17:44 ` [PATCH 5.18 63/67] bpf: Fix usage of trace RCU in local storage Greg Kroah-Hartman
2022-06-03 17:44 ` [PATCH 5.18 64/67] bpf: Fix excessive memory allocation in stack_map_alloc() Greg Kroah-Hartman
2022-06-03 17:44 ` [PATCH 5.18 65/67] bpf: Reject writes for PTR_TO_MAP_KEY in check_helper_mem_access Greg Kroah-Hartman
2022-06-03 17:44 ` [PATCH 5.18 66/67] bpf: Check PTR_TO_MEM | MEM_RDONLY " Greg Kroah-Hartman
2022-06-03 17:44 ` [PATCH 5.18 67/67] bpf: Do write access check for kfunc and global func Greg Kroah-Hartman
2022-06-03 23:00 ` [PATCH 5.18 00/67] 5.18.2-rc1 review Justin Forbes
2022-06-04 6:25 ` Ron Economos
2022-06-04 16:45 ` Naresh Kamboju
2022-06-04 18:56 ` Guenter Roeck
2022-06-05 2:28 ` Rudi Heitbaum
2022-06-05 7:02 ` Bagas Sanjaya
2022-06-05 7:38 ` Greg Kroah-Hartman
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