From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Pan Bian <bianpan2016@163.com>,
Chao Yu <yuchao0@huawei.com>, Jaegeuk Kim <jaegeuk@kernel.org>,
Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Subject: [PATCH 4.4 28/65] f2fs: read page index before freeing
Date: Mon, 4 Feb 2019 11:36:21 +0100 [thread overview]
Message-ID: <20190204103615.462336126@linuxfoundation.org> (raw)
In-Reply-To: <20190204103610.583715954@linuxfoundation.org>
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pan Bian <bianpan2016@163.com>
commit 0ea295dd853e0879a9a30ab61f923c26be35b902 upstream.
The function truncate_node frees the page with f2fs_put_page. However,
the page index is read after that. So, the patch reads the index before
freeing the page.
Fixes: bf39c00a9a7f ("f2fs: drop obsolete node page when it is truncated")
Cc: <stable@vger.kernel.org>
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/f2fs/node.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -590,6 +590,7 @@ static void truncate_node(struct dnode_o
{
struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
struct node_info ni;
+ pgoff_t index;
get_node_info(sbi, dn->nid, &ni);
if (dn->inode->i_blocks == 0) {
@@ -613,10 +614,11 @@ invalidate:
clear_node_page_dirty(dn->node_page);
set_sbi_flag(sbi, SBI_IS_DIRTY);
+ index = dn->node_page->index;
f2fs_put_page(dn->node_page, 1);
invalidate_mapping_pages(NODE_MAPPING(sbi),
- dn->node_page->index, dn->node_page->index);
+ index, index);
dn->node_page = NULL;
trace_f2fs_truncate_node(dn->inode, dn->nid, ni.blk_addr);
next prev parent reply other threads:[~2019-02-04 10:41 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-04 10:35 [PATCH 4.4 00/65] 4.4.173-stable review Greg Kroah-Hartman
2019-02-04 10:35 ` [PATCH 4.4 01/65] net: Fix usage of pskb_trim_rcsum Greg Kroah-Hartman
2019-02-04 10:35 ` [PATCH 4.4 02/65] openvswitch: Avoid OOB read when parsing flow nlattrs Greg Kroah-Hartman
2019-02-04 10:35 ` [PATCH 4.4 03/65] net: ipv4: Fix memory leak in network namespace dismantle Greg Kroah-Hartman
2019-02-04 10:35 ` [PATCH 4.4 04/65] net_sched: refetch skb protocol for each filter Greg Kroah-Hartman
2019-02-04 10:35 ` [PATCH 4.4 05/65] net: bridge: Fix ethernet header pointer before check skb forwardable Greg Kroah-Hartman
2019-02-04 10:35 ` [PATCH 4.4 06/65] mmc: Kconfig: Enable CONFIG_MMC_SDHCI_IO_ACCESSORS Greg Kroah-Hartman
2019-02-04 11:05 ` Georgi Djakov
2019-02-04 11:13 ` Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 07/65] USB: serial: simple: add Motorola Tetra TPG2200 device id Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 08/65] USB: serial: pl2303: add new PID to support PL2303TB Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 09/65] ASoC: atom: fix a missing check of snd_pcm_lib_malloc_pages Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 10/65] ARC: perf: map generic branches to correct hardware condition Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 11/65] s390/early: improve machine detection Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 12/65] s390/smp: fix CPU hotplug deadlock with CPU rescan Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 13/65] char/mwave: fix potential Spectre v1 vulnerability Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 14/65] staging: rtl8188eu: Add device code for D-Link DWA-121 rev B1 Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 15/65] tty: Handle problem if line discipline does not have receive_buf Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 16/65] tty/n_hdlc: fix __might_sleep warning Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 17/65] CIFS: Fix possible hang during async MTU reads and writes Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 18/65] Input: xpad - add support for SteelSeries Stratus Duo Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 19/65] KVM: x86: Fix single-step debugging Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 20/65] x86/kaslr: Fix incorrect i8254 outb() parameters Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 21/65] can: dev: __can_get_echo_skb(): fix bogous check for non-existing skb by removing it Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 22/65] can: bcm: check timer values before ktime conversion Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 23/65] vt: invoke notifier on screen size change Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 24/65] perf unwind: Unwind with libdw doesnt take symfs into account Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 25/65] perf unwind: Take pgoff into account when reporting elf to libdwfl Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 26/65] irqchip/gic-v3-its: Align PCI Multi-MSI allocation on their size Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 27/65] arm64: mm: remove page_mapping check in __sync_icache_dcache Greg Kroah-Hartman
2019-02-04 10:36 ` Greg Kroah-Hartman [this message]
2019-02-04 10:36 ` [PATCH 4.4 29/65] Revert "loop: Fix double mutex_unlock(&loop_ctl_mutex) in loop_control_ioctl()" Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 30/65] Revert "loop: Get rid of loop_index_mutex" Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 31/65] Revert "loop: Fold __loop_release into loop_release" Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 32/65] s390/smp: Fix calling smp_call_ipl_cpu() from ipl CPU Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 33/65] fs: add the fsnotify call to vfs_iter_write Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 34/65] ipv6: Consider sk_bound_dev_if when binding a socket to an address Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 35/65] l2tp: copy 4 more bytes to linear part if necessary Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 36/65] net/mlx4_core: Add masking for a few queries on HCA caps Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 37/65] netrom: switch to sock timer API Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 38/65] net/rose: fix NULL ax25_cb kernel panic Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 39/65] ucc_geth: Reset BQL queue when stopping device Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 40/65] l2tp: remove l2specific_len dependency in l2tp_core Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 41/65] l2tp: fix reading optional fields of L2TPv3 Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 42/65] CIFS: Do not count -ENODATA as failure for query directory Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 43/65] fs/dcache: Fix incorrect nr_dentry_unused accounting in shrink_dcache_sb() Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 44/65] ARM: cns3xxx: Fix writing to wrong PCI config registers after alignment Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 45/65] arm64: hyp-stub: Forbid kprobing of the hyp-stub Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 46/65] gfs2: Revert "Fix loop in gfs2_rbm_find" Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 47/65] platform/x86: asus-nb-wmi: Map 0x35 to KEY_SCREENLOCK Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 48/65] platform/x86: asus-nb-wmi: Drop mapping of 0x33 and 0x34 scan codes Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 49/65] mmc: sdhci-iproc: handle mmc_of_parse() errors during probe Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 50/65] kernel/exit.c: release ptraced tasks before zap_pid_ns_processes Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 51/65] mm, oom: fix use-after-free in oom_kill_process Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 52/65] cifs: Always resolve hostname before reconnecting Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 53/65] drivers: core: Remove glue dirs from sysfs earlier Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 54/65] mm: migrate: dont rely on __PageMovable() of newpage after unlocking it Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 55/65] fs: dont scan the inode cache before SB_BORN is set Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 56/65] ip: discard IPv4 datagrams with overlapping segments Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 57/65] net: modify skb_rbtree_purge to return the truesize of all purged skbs Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 58/65] inet: frags: get rif of inet_frag_evicting() Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 59/65] ip: use rb trees for IP frag queue Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 60/65] ipv6: defrag: drop non-last frags smaller than min mtu Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 61/65] ip: add helpers to process in-order fragments faster Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 62/65] ip: process in-order fragments efficiently Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 63/65] net: ipv4: do not handle duplicate fragments as overlapping Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 64/65] ip: frags: fix crash in ip_do_fragment() Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.4 65/65] ipv4: frags: precedence bug in ip_expire() Greg Kroah-Hartman
2019-02-04 22:48 ` [PATCH 4.4 00/65] 4.4.173-stable review Guenter Roeck
2019-02-05 14:42 ` Greg Kroah-Hartman
2019-02-05 15:12 ` Guenter Roeck
2019-02-05 6:24 ` Naresh Kamboju
2019-02-05 10:17 ` Jon Hunter
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