From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
patches@lists.linux.dev, Ye Bin <yebin10@huawei.com>,
Theodore Tso <tytso@mit.edu>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 6.0 91/94] ext4: factor out ext4_fc_get_tl()
Date: Thu, 27 Oct 2022 18:55:33 +0200 [thread overview]
Message-ID: <20221027165100.859744028@linuxfoundation.org> (raw)
In-Reply-To: <20221027165057.208202132@linuxfoundation.org>
From: Ye Bin <yebin10@huawei.com>
[ Upstream commit dcc5827484d6e53ccda12334f8bbfafcc593ceda ]
Factor out ext4_fc_get_tl() to fill 'tl' with host byte order.
Signed-off-by: Ye Bin <yebin10@huawei.com>
Link: https://lore.kernel.org/r/20220924075233.2315259-3-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Stable-dep-of: 1b45cc5c7b92 ("ext4: fix potential out of bound read in ext4_fc_replay_scan()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ext4/fast_commit.c | 46 +++++++++++++++++++++++--------------------
1 file changed, 25 insertions(+), 21 deletions(-)
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 6c8b78ad0ff2..f518c6585a63 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1346,7 +1346,7 @@ struct dentry_info_args {
};
static inline void tl_to_darg(struct dentry_info_args *darg,
- struct ext4_fc_tl *tl, u8 *val)
+ struct ext4_fc_tl *tl, u8 *val)
{
struct ext4_fc_dentry_info fcd;
@@ -1355,8 +1355,14 @@ static inline void tl_to_darg(struct dentry_info_args *darg,
darg->parent_ino = le32_to_cpu(fcd.fc_parent_ino);
darg->ino = le32_to_cpu(fcd.fc_ino);
darg->dname = val + offsetof(struct ext4_fc_dentry_info, fc_dname);
- darg->dname_len = le16_to_cpu(tl->fc_len) -
- sizeof(struct ext4_fc_dentry_info);
+ darg->dname_len = tl->fc_len - sizeof(struct ext4_fc_dentry_info);
+}
+
+static inline void ext4_fc_get_tl(struct ext4_fc_tl *tl, u8 *val)
+{
+ memcpy(tl, val, EXT4_FC_TAG_BASE_LEN);
+ tl->fc_len = le16_to_cpu(tl->fc_len);
+ tl->fc_tag = le16_to_cpu(tl->fc_tag);
}
/* Unlink replay function */
@@ -1521,7 +1527,7 @@ static int ext4_fc_replay_inode(struct super_block *sb, struct ext4_fc_tl *tl,
struct ext4_inode *raw_fc_inode;
struct inode *inode = NULL;
struct ext4_iloc iloc;
- int inode_len, ino, ret, tag = le16_to_cpu(tl->fc_tag);
+ int inode_len, ino, ret, tag = tl->fc_tag;
struct ext4_extent_header *eh;
memcpy(&fc_inode, val, sizeof(fc_inode));
@@ -1546,7 +1552,7 @@ static int ext4_fc_replay_inode(struct super_block *sb, struct ext4_fc_tl *tl,
if (ret)
goto out;
- inode_len = le16_to_cpu(tl->fc_len) - sizeof(struct ext4_fc_inode);
+ inode_len = tl->fc_len - sizeof(struct ext4_fc_inode);
raw_inode = ext4_raw_inode(&iloc);
memcpy(raw_inode, raw_fc_inode, offsetof(struct ext4_inode, i_block));
@@ -2037,12 +2043,12 @@ static int ext4_fc_replay_scan(journal_t *journal,
state->fc_replay_expected_off++;
for (cur = start; cur < end;
- cur = cur + EXT4_FC_TAG_BASE_LEN + le16_to_cpu(tl.fc_len)) {
- memcpy(&tl, cur, EXT4_FC_TAG_BASE_LEN);
+ cur = cur + EXT4_FC_TAG_BASE_LEN + tl.fc_len) {
+ ext4_fc_get_tl(&tl, cur);
val = cur + EXT4_FC_TAG_BASE_LEN;
ext4_debug("Scan phase, tag:%s, blk %lld\n",
- tag2str(le16_to_cpu(tl.fc_tag)), bh->b_blocknr);
- switch (le16_to_cpu(tl.fc_tag)) {
+ tag2str(tl.fc_tag), bh->b_blocknr);
+ switch (tl.fc_tag) {
case EXT4_FC_TAG_ADD_RANGE:
memcpy(&ext, val, sizeof(ext));
ex = (struct ext4_extent *)&ext.fc_ex;
@@ -2062,7 +2068,7 @@ static int ext4_fc_replay_scan(journal_t *journal,
case EXT4_FC_TAG_PAD:
state->fc_cur_tag++;
state->fc_crc = ext4_chksum(sbi, state->fc_crc, cur,
- EXT4_FC_TAG_BASE_LEN + le16_to_cpu(tl.fc_len));
+ EXT4_FC_TAG_BASE_LEN + tl.fc_len);
break;
case EXT4_FC_TAG_TAIL:
state->fc_cur_tag++;
@@ -2095,7 +2101,7 @@ static int ext4_fc_replay_scan(journal_t *journal,
}
state->fc_cur_tag++;
state->fc_crc = ext4_chksum(sbi, state->fc_crc, cur,
- EXT4_FC_TAG_BASE_LEN + le16_to_cpu(tl.fc_len));
+ EXT4_FC_TAG_BASE_LEN + tl.fc_len);
break;
default:
ret = state->fc_replay_num_tags ?
@@ -2151,8 +2157,8 @@ static int ext4_fc_replay(journal_t *journal, struct buffer_head *bh,
end = (__u8 *)bh->b_data + journal->j_blocksize - 1;
for (cur = start; cur < end;
- cur = cur + EXT4_FC_TAG_BASE_LEN + le16_to_cpu(tl.fc_len)) {
- memcpy(&tl, cur, EXT4_FC_TAG_BASE_LEN);
+ cur = cur + EXT4_FC_TAG_BASE_LEN + tl.fc_len) {
+ ext4_fc_get_tl(&tl, cur);
val = cur + EXT4_FC_TAG_BASE_LEN;
if (state->fc_replay_num_tags == 0) {
@@ -2160,10 +2166,9 @@ static int ext4_fc_replay(journal_t *journal, struct buffer_head *bh,
ext4_fc_set_bitmaps_and_counters(sb);
break;
}
- ext4_debug("Replay phase, tag:%s\n",
- tag2str(le16_to_cpu(tl.fc_tag)));
+ ext4_debug("Replay phase, tag:%s\n", tag2str(tl.fc_tag));
state->fc_replay_num_tags--;
- switch (le16_to_cpu(tl.fc_tag)) {
+ switch (tl.fc_tag) {
case EXT4_FC_TAG_LINK:
ret = ext4_fc_replay_link(sb, &tl, val);
break;
@@ -2184,19 +2189,18 @@ static int ext4_fc_replay(journal_t *journal, struct buffer_head *bh,
break;
case EXT4_FC_TAG_PAD:
trace_ext4_fc_replay(sb, EXT4_FC_TAG_PAD, 0,
- le16_to_cpu(tl.fc_len), 0);
+ tl.fc_len, 0);
break;
case EXT4_FC_TAG_TAIL:
- trace_ext4_fc_replay(sb, EXT4_FC_TAG_TAIL, 0,
- le16_to_cpu(tl.fc_len), 0);
+ trace_ext4_fc_replay(sb, EXT4_FC_TAG_TAIL,
+ 0, tl.fc_len, 0);
memcpy(&tail, val, sizeof(tail));
WARN_ON(le32_to_cpu(tail.fc_tid) != expected_tid);
break;
case EXT4_FC_TAG_HEAD:
break;
default:
- trace_ext4_fc_replay(sb, le16_to_cpu(tl.fc_tag), 0,
- le16_to_cpu(tl.fc_len), 0);
+ trace_ext4_fc_replay(sb, tl.fc_tag, 0, tl.fc_len, 0);
ret = -ECANCELED;
break;
}
--
2.35.1
next prev parent reply other threads:[~2022-10-27 17:00 UTC|newest]
Thread overview: 107+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-27 16:54 [PATCH 6.0 00/94] 6.0.6-rc1 review Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 01/94] [PATCH v2] video/aperture: Call sysfb_disable() before removing PCI devices Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 02/94] ocfs2: clear dinode links count in case of error Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 03/94] ocfs2: fix BUG when iput after ocfs2_mknod fails Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 04/94] smb3: interface count displayed incorrectly Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 05/94] selinux: enable use of both GFP_KERNEL and GFP_ATOMIC in convert_context() Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 06/94] cpufreq: qcom: fix writes in read-only memory region Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 07/94] i2c: qcom-cci: Fix ordering of pm_runtime_xx and i2c_add_adapter Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 08/94] cpufreq: tegra194: Fix module loading Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 09/94] x86/microcode/AMD: Apply the patch early on every logical thread Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 10/94] hwmon/coretemp: Handle large core ID value Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 11/94] ata: ahci-imx: Fix MODULE_ALIAS Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 12/94] ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 13/94] x86/resctrl: Fix min_cbm_bits for AMD Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 14/94] cpufreq: qcom: fix memory leak in error path Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 15/94] drm/amdgpu: fix sdma doorbell init ordering on APUs Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 16/94] mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 17/94] kvm: Add support for arch compat vm ioctls Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 18/94] KVM: x86: Copy filter arg outside kvm_vm_ioctl_set_msr_filter() Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 19/94] KVM: x86: Add compat handler for KVM_X86_SET_MSR_FILTER Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 20/94] KVM: arm64: vgic: Fix exit condition in scan_its_table() Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 21/94] media: ipu3-imgu: Fix NULL pointer dereference in active selection access Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 22/94] media: mceusb: set timeout to at least timeout provided Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 23/94] media: venus: dec: Handle the case where find_format fails Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 24/94] media: venus: Fix NV12 decoder buffer discovery on HFI_VERSION_1XX Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 25/94] x86/Kconfig: Drop check for -mabi=ms for CONFIG_EFI_STUB Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 26/94] x86/topology: Fix multiple packages shown on a single-package system Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 27/94] x86/topology: Fix duplicated core ID within a package Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 28/94] platform/x86/amd: pmc: Read SMU version during suspend on Cezanne systems Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 29/94] dm bufio: use the acquire memory barrier when testing for B_READING Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 30/94] btrfs: fix processing of delayed data refs during backref walking Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 31/94] btrfs: fix processing of delayed tree block " Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 32/94] drm/vc4: Add module dependency on hdmi-codec Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 33/94] drm/vc4: hdmi: Enforce the minimum rate at runtime_resume Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 34/94] ACPI: extlog: Handle multiple records Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 35/94] tipc: Fix recognition of trial period Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 36/94] tipc: fix an information leak in tipc_topsrv_kern_subscr Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 37/94] net: dsa: qca8k: fix inband mgmt for big-endian systems Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 38/94] net: dsa: qca8k: fix ethtool autocast mib " Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 39/94] i40e: Fix DMA mappings leak Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 40/94] tls: strp: make sure the TCP skbs do not have overlapping data Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 41/94] HID: magicmouse: Do not set BTN_MOUSE on double report Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 42/94] sfc: Change VF mac via PF as first preference if available Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 43/94] net/atm: fix proc_mpc_write incorrect return value Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 44/94] net: phy: dp83867: Extend RX strap quirk for SGMII mode Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 45/94] net/smc: Fix an error code in smc_lgr_create() Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 46/94] net: phylink: add mac_managed_pm in phylink_config structure Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 47/94] net: stmmac: Enable mac_managed_pm phylink config Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 48/94] skmsg: pass gfp argument to alloc_sk_msg() Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 49/94] erofs: shouldnt churn the mapping page for duplicated copies Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 50/94] blk-mq: fix null pointer dereference in blk_mq_clear_rq_mapping() Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 51/94] io_uring/rw: remove leftover debug statement Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 52/94] net: ethernet: mtk_eth_soc: fix possible memory leak in mtk_probe() Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 53/94] net: ethernet: mtk_eth_wed: add missing put_device() in mtk_wed_add_hw() Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 54/94] net: ethernet: mtk_eth_wed: add missing of_node_put() Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 55/94] scsi: lpfc: Fix memory leak in lpfc_create_port() Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 56/94] udp: Update reuse->has_conns under reuseport_lock Greg Kroah-Hartman
2022-10-27 16:54 ` [PATCH 6.0 57/94] ip6mr: fix UAF issue in ip6mr_sk_done() when addrconf_init_net() failed Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 58/94] cifs: Fix xid leak in cifs_create() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 59/94] cifs: Fix xid leak in cifs_copy_file_range() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 60/94] cifs: Fix xid leak in cifs_flock() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 61/94] cifs: Fix xid leak in cifs_ses_add_channel() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 62/94] cifs: Fix memory leak when build ntlmssp negotiate blob failed Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 63/94] dm: remove unnecessary assignment statement in alloc_dev() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 64/94] drm/amd/display: Increase frame size limit for display_mode_vba_util_32.o Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 65/94] bnxt_en: fix memory leak in bnxt_nvm_test() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 66/94] net: hsr: avoid possible NULL deref in skb_clone() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 67/94] ionic: catch NULL pointer issue on reconfig Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 68/94] netfilter: rpfilter/fib: Populate flowic_l3mdev field Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 69/94] netfilter: rpfilter/fib: Set ->flowic_uid correctly for user namespaces Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 70/94] netfilter: nf_tables: relax NFTA_SET_ELEM_KEY_END set flags requirements Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 71/94] nvme-hwmon: consistently ignore errors from nvme_hwmon_init Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 72/94] nvme-hwmon: kmalloc the NVME SMART log buffer Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 73/94] nvmet: fix workqueue MEM_RECLAIM flushing dependency Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 74/94] net: sched: cake: fix null pointer access issue when cake_init() fails Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 75/94] net: sched: delete duplicate cleanup of backlog and qlen Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 76/94] net: sched: sfb: fix null pointer access issue when sfb_init() fails Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 77/94] net: Fix return value of qdisc ingress handling on success Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 78/94] io_uring/msg_ring: Fix NULL pointer dereference in io_msg_send_fd() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 79/94] sfc: include vport_id in filter spec hash and equal() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 80/94] wwan_hwsim: fix possible memory leak in wwan_hwsim_dev_new() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 81/94] net: hns: fix possible memory leak in hnae_ae_register() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 82/94] net: sched: fix race condition in qdisc_graft() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 83/94] net: phy: dp83822: disable MDI crossover status change interrupt Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 84/94] drbd: only clone bio if we have a backing device Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 85/94] rv/dot2c: Make automaton definition static Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 86/94] iommu/vt-d: Allow NVS regions in arch_rmrr_sanity_check() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 87/94] iommu/vt-d: Clean up si_domain in the init_dmars() error path Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 88/94] wifi: mt76: mt7921e: fix random fw download fail Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 89/94] io_uring: dont gate task_work run on TIF_NOTIFY_SIGNAL Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 90/94] ext4: introduce EXT4_FC_TAG_BASE_LEN helper Greg Kroah-Hartman
2022-10-27 16:55 ` Greg Kroah-Hartman [this message]
2022-10-27 16:55 ` [PATCH 6.0 92/94] ext4: fix potential out of bound read in ext4_fc_replay_scan() Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 93/94] [PATCH v3] ACPI: video: Force backlight native for more TongFang devices Greg Kroah-Hartman
2022-10-27 16:55 ` [PATCH 6.0 94/94] mm: /proc/pid/smaps_rollup: fix no vmas null-deref Greg Kroah-Hartman
2022-10-27 17:11 ` [PATCH 6.0 00/94] 6.0.6-rc1 review Greg Kroah-Hartman
2022-10-27 18:22 ` Luna Jernberg
2022-10-27 18:46 ` Holger Hoffstätte
2022-10-27 21:13 ` Justin Forbes
2022-10-28 8:20 ` Bagas Sanjaya
2022-10-28 9:20 ` Naresh Kamboju
2022-10-28 9:25 ` Ron Economos
2022-10-28 10:18 ` Rudi Heitbaum
2022-10-28 10:35 ` Sudip Mukherjee (Codethink)
2022-10-28 11:59 ` Jon Hunter
2022-10-28 22:01 ` Florian Fainelli
2022-10-29 3:36 ` Guenter Roeck
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