From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
patches@lists.linux.dev, Anand Jain <anand.jain@oracle.com>,
Zhang Xiaoxu <zhangxiaoxu5@huawei.com>,
David Sterba <dsterba@suse.com>
Subject: [PATCH 4.9 20/76] btrfs: selftests: fix wrong error check in btrfs_free_dummy_root()
Date: Wed, 23 Nov 2022 09:50:19 +0100 [thread overview]
Message-ID: <20221123084547.385759749@linuxfoundation.org> (raw)
In-Reply-To: <20221123084546.742331901@linuxfoundation.org>
From: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
commit 9b2f20344d450137d015b380ff0c2e2a6a170135 upstream.
The btrfs_alloc_dummy_root() uses ERR_PTR as the error return value
rather than NULL, if error happened, there will be a NULL pointer
dereference:
BUG: KASAN: null-ptr-deref in btrfs_free_dummy_root+0x21/0x50 [btrfs]
Read of size 8 at addr 000000000000002c by task insmod/258926
CPU: 2 PID: 258926 Comm: insmod Tainted: G W 6.1.0-rc2+ #5
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0x34/0x44
kasan_report+0xb7/0x140
kasan_check_range+0x145/0x1a0
btrfs_free_dummy_root+0x21/0x50 [btrfs]
btrfs_test_free_space_cache+0x1a8c/0x1add [btrfs]
btrfs_run_sanity_tests+0x65/0x80 [btrfs]
init_btrfs_fs+0xec/0x154 [btrfs]
do_one_initcall+0x87/0x2a0
do_init_module+0xdf/0x320
load_module+0x3006/0x3390
__do_sys_finit_module+0x113/0x1b0
do_syscall_64+0x35/0x80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
Fixes: aaedb55bc08f ("Btrfs: add tests for btrfs_get_extent")
CC: stable@vger.kernel.org # 4.9+
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/btrfs/tests/btrfs-tests.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/btrfs/tests/btrfs-tests.c
+++ b/fs/btrfs/tests/btrfs-tests.c
@@ -183,7 +183,7 @@ void btrfs_free_dummy_fs_info(struct btr
void btrfs_free_dummy_root(struct btrfs_root *root)
{
- if (!root)
+ if (IS_ERR_OR_NULL(root))
return;
/* Will be freed by btrfs_free_fs_roots */
if (WARN_ON(test_bit(BTRFS_ROOT_IN_RADIX, &root->state)))
next prev parent reply other threads:[~2022-11-23 8:54 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-23 8:49 [PATCH 4.9 00/76] 4.9.334-rc1 review Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 01/76] HID: hyperv: fix possible memory leak in mousevsc_probe() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 02/76] net: gso: fix panic on frag_list with mixed head alloc types Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 03/76] bnxt_en: fix potentially incorrect return value for ndo_rx_flow_steer Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 04/76] net: fman: Unregister ethernet device on removal Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 05/76] capabilities: fix undefined behavior in bit shift for CAP_TO_MASK Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 06/76] net: lapbether: fix issue of dev reference count leakage in lapbeth_device_event() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 07/76] hamradio: fix issue of dev reference count leakage in bpq_device_event() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 08/76] ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network Greg Kroah-Hartman
2022-11-23 8:54 ` syzbot
2022-11-23 8:50 ` [PATCH 4.9 09/76] tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 10/76] dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 11/76] drivers: net: xgene: disable napi when register irq failed in xgene_enet_open() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 12/76] net: cxgb3_main: disable napi when bind qsets failed in cxgb_up() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 13/76] ethernet: s2io: disable napi when start nic failed in s2io_card_up() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 14/76] net: mv643xx_eth: disable napi when init rxq or txq failed in mv643xx_eth_open() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 15/76] net: macvlan: fix memory leaks of macvlan_common_newlink Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 16/76] ALSA: hda: fix potential memleak in add_widget_node Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 17/76] ALSA: usb-audio: Add quirk entry for M-Audio Micro Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 18/76] nilfs2: fix deadlock in nilfs_count_free_blocks() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 19/76] platform/x86: hp_wmi: Fix rfkill causing soft blocked wifi Greg Kroah-Hartman
2022-11-23 8:50 ` Greg Kroah-Hartman [this message]
2022-11-23 8:50 ` [PATCH 4.9 21/76] udf: Fix a slab-out-of-bounds write bug in udf_find_entry() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 22/76] cert host tools: Stop complaining about deprecated OpenSSL functions Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 23/76] dmaengine: at_hdmac: Fix at_lli struct definition Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 24/76] dmaengine: at_hdmac: Dont start transactions at tx_submit level Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 25/76] dmaengine: at_hdmac: Fix completion of unissued descriptor in case of errors Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 26/76] dmaengine: at_hdmac: Dont allow CPU to reorder channel enable Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 27/76] dmaengine: at_hdmac: Fix impossible condition Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 28/76] dmaengine: at_hdmac: Check return code of dma_async_device_register Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 29/76] x86/cpu: Restore AMDs DE_CFG MSR after resume Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 30/76] rtc: cmos: fix build on non-ACPI platforms Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 31/76] drm/imx: imx-tve: Fix return type of imx_tve_connector_mode_valid Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 32/76] Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 33/76] ASoC: core: Fix use-after-free in snd_soc_exit() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 34/76] serial: 8250_omap: remove wait loop from Errata i202 workaround Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 35/76] serial: 8250: omap: Flush PM QOS work on remove Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 36/76] tty: n_gsm: fix sleep-in-atomic-context bug in gsm_control_send Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 37/76] ASoC: soc-utils: Remove __exit for snd_soc_util_exit() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 38/76] parport_pc: Avoid FIFO port location truncation Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 39/76] pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 40/76] mISDN: fix possible memory leak in mISDN_dsp_element_register() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 41/76] mISDN: fix misuse of put_device() in mISDN_register_device() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 42/76] net: caif: fix double disconnect client in chnl_net_open() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 43/76] xen/pcpu: fix possible memory leak in register_pcpu() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 44/76] net/x25: Fix skb leak in x25_lapb_receive_frame() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 45/76] cifs: Fix wrong return value checking when GETFLAGS Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 46/76] ftrace: Fix the possible incorrect kernel message Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 47/76] ftrace: Optimize the allocation for mcount entries Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 48/76] ring_buffer: Do not deactivate non-existant pages Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 49/76] ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 50/76] USB: serial: option: add Sierra Wireless EM9191 Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 51/76] USB: serial: option: remove old LARA-R6 PID Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 52/76] USB: serial: option: add u-blox LARA-R6 00B modem Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 53/76] USB: serial: option: add u-blox LARA-L6 modem Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 54/76] USB: serial: option: add Fibocom FM160 0x0111 composition Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 55/76] usb: add NO_LPM quirk for Realforce 87U Keyboard Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 56/76] usb: chipidea: fix deadlock in ci_otg_del_timer Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 57/76] iio: adc: at91_adc: fix possible memory leak in at91_adc_allocate_trigger() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 58/76] iio: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init() Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 59/76] iio: pressure: ms5611: changed hardcoded SPI speed to value limited Greg Kroah-Hartman
2022-11-23 8:50 ` [PATCH 4.9 60/76] dm ioctl: fix misbehavior if list_versions races with module loading Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 61/76] serial: 8250: Fall back to non-DMA Rx if IIR_RDI occurs Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 62/76] serial: 8250_lpss: Configure DMA also w/o DMA filter Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 63/76] mmc: core: properly select voltage range without power cycle Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 64/76] misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram() Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 65/76] nilfs2: fix use-after-free bug of ns_writer on remount Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 66/76] serial: 8250: Flush DMA Rx on RLSI Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 67/76] tcp: cdg: allow tcp_cdg_release() to be called multiple times Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 68/76] kcm: avoid potential race in kcm_tx_work Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 69/76] 9p: trans_fd/p9_conn_cancel: drop client lock earlier Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 70/76] gfs2: Check sb_bsize_shift after reading superblock Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 71/76] gfs2: Switch from strlcpy to strscpy Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 72/76] 9p/trans_fd: always use O_NONBLOCK read/write Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 73/76] mm: fs: initialize fsdata passed to write_begin/write_end interface Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 74/76] ntfs: fix use-after-free in ntfs_attr_find() Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 75/76] ntfs: fix out-of-bounds read " Greg Kroah-Hartman
2022-11-23 8:51 ` [PATCH 4.9 76/76] ntfs: check overflow when iterating ATTR_RECORDs Greg Kroah-Hartman
2022-11-23 11:14 ` [PATCH 4.9 00/76] 4.9.334-rc1 review Pavel Machek
2022-11-23 11:47 ` Pavel Machek
2022-11-24 2:35 ` Guenter Roeck
2022-11-24 13:01 ` Naresh Kamboju
2022-11-28 21:55 ` Florian Fainelli
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