From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Edward Lo <loyuantsung@gmail.com>,
Konstantin Komarov <almaz.alexandrovich@paragon-software.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 6.4 28/40] fs/ntfs3: Return error for inconsistent extended attributes
Date: Sun, 23 Jul 2023 21:31:28 -0400 [thread overview]
Message-ID: <20230724013140.2327815-28-sashal@kernel.org> (raw)
In-Reply-To: <20230724013140.2327815-1-sashal@kernel.org>
From: Edward Lo <loyuantsung@gmail.com>
[ Upstream commit c9db0ff04649aa0b45f497183c957fe260f229f6 ]
ntfs_read_ea is called when we want to read extended attributes. There
are some sanity checks for the validity of the EAs. However, it fails to
return a proper error code for the inconsistent attributes, which might
lead to unpredicted memory accesses after return.
[ 138.916927] BUG: KASAN: use-after-free in ntfs_set_ea+0x453/0xbf0
[ 138.923876] Write of size 4 at addr ffff88800205cfac by task poc/199
[ 138.931132]
[ 138.933016] CPU: 0 PID: 199 Comm: poc Not tainted 6.2.0-rc1+ #4
[ 138.938070] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
[ 138.947327] Call Trace:
[ 138.949557] <TASK>
[ 138.951539] dump_stack_lvl+0x4d/0x67
[ 138.956834] print_report+0x16f/0x4a6
[ 138.960798] ? ntfs_set_ea+0x453/0xbf0
[ 138.964437] ? kasan_complete_mode_report_info+0x7d/0x200
[ 138.969793] ? ntfs_set_ea+0x453/0xbf0
[ 138.973523] kasan_report+0xb8/0x140
[ 138.976740] ? ntfs_set_ea+0x453/0xbf0
[ 138.980578] __asan_store4+0x76/0xa0
[ 138.984669] ntfs_set_ea+0x453/0xbf0
[ 138.988115] ? __pfx_ntfs_set_ea+0x10/0x10
[ 138.993390] ? kernel_text_address+0xd3/0xe0
[ 138.998270] ? __kernel_text_address+0x16/0x50
[ 139.002121] ? unwind_get_return_address+0x3e/0x60
[ 139.005659] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 139.010177] ? arch_stack_walk+0xa2/0x100
[ 139.013657] ? filter_irq_stacks+0x27/0x80
[ 139.017018] ntfs_setxattr+0x405/0x440
[ 139.022151] ? __pfx_ntfs_setxattr+0x10/0x10
[ 139.026569] ? kvmalloc_node+0x2d/0x120
[ 139.030329] ? kasan_save_stack+0x41/0x60
[ 139.033883] ? kasan_save_stack+0x2a/0x60
[ 139.037338] ? kasan_set_track+0x29/0x40
[ 139.040163] ? kasan_save_alloc_info+0x1f/0x30
[ 139.043588] ? __kasan_kmalloc+0x8b/0xa0
[ 139.047255] ? __kmalloc_node+0x68/0x150
[ 139.051264] ? kvmalloc_node+0x2d/0x120
[ 139.055301] ? vmemdup_user+0x2b/0xa0
[ 139.058584] __vfs_setxattr+0x121/0x170
[ 139.062617] ? __pfx___vfs_setxattr+0x10/0x10
[ 139.066282] __vfs_setxattr_noperm+0x97/0x300
[ 139.070061] __vfs_setxattr_locked+0x145/0x170
[ 139.073580] vfs_setxattr+0x137/0x2a0
[ 139.076641] ? __pfx_vfs_setxattr+0x10/0x10
[ 139.080223] ? __kasan_check_write+0x18/0x20
[ 139.084234] do_setxattr+0xce/0x150
[ 139.087768] setxattr+0x126/0x140
[ 139.091250] ? __pfx_setxattr+0x10/0x10
[ 139.094948] ? __virt_addr_valid+0xcb/0x140
[ 139.097838] ? __call_rcu_common.constprop.0+0x1c7/0x330
[ 139.102688] ? debug_smp_processor_id+0x1b/0x30
[ 139.105985] ? kasan_quarantine_put+0x5b/0x190
[ 139.109980] ? putname+0x84/0xa0
[ 139.113886] ? __kasan_slab_free+0x11e/0x1b0
[ 139.117961] ? putname+0x84/0xa0
[ 139.121316] ? preempt_count_sub+0x1c/0xd0
[ 139.124427] ? __mnt_want_write+0xae/0x100
[ 139.127836] ? mnt_want_write+0x8f/0x150
[ 139.130954] path_setxattr+0x164/0x180
[ 139.133998] ? __pfx_path_setxattr+0x10/0x10
[ 139.137853] ? __pfx_ksys_pwrite64+0x10/0x10
[ 139.141299] ? debug_smp_processor_id+0x1b/0x30
[ 139.145714] ? fpregs_assert_state_consistent+0x6b/0x80
[ 139.150796] __x64_sys_setxattr+0x71/0x90
[ 139.155407] do_syscall_64+0x3f/0x90
[ 139.159035] entry_SYSCALL_64_after_hwframe+0x72/0xdc
[ 139.163843] RIP: 0033:0x7f108cae4469
[ 139.166481] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 088
[ 139.183764] RSP: 002b:00007fff87588388 EFLAGS: 00000286 ORIG_RAX: 00000000000000bc
[ 139.190657] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f108cae4469
[ 139.196586] RDX: 00007fff875883b0 RSI: 00007fff875883d1 RDI: 00007fff875883b6
[ 139.201716] RBP: 00007fff8758c530 R08: 0000000000000001 R09: 00007fff8758c618
[ 139.207940] R10: 0000000000000006 R11: 0000000000000286 R12: 00000000004004c0
[ 139.214007] R13: 00007fff8758c610 R14: 0000000000000000 R15: 0000000000000000
Signed-off-by: Edward Lo <loyuantsung@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/ntfs3/xattr.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/ntfs3/xattr.c b/fs/ntfs3/xattr.c
index c3de60a4543fa..c78d83f306689 100644
--- a/fs/ntfs3/xattr.c
+++ b/fs/ntfs3/xattr.c
@@ -141,6 +141,7 @@ static int ntfs_read_ea(struct ntfs_inode *ni, struct EA_FULL **ea,
memset(Add2Ptr(ea_p, size), 0, add_bytes);
+ err = -EINVAL;
/* Check all attributes for consistency. */
for (off = 0; off < size; off += ea_size) {
const struct EA_FULL *ef = Add2Ptr(ea_p, off);
--
2.39.2
next prev parent reply other threads:[~2023-07-24 1:40 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-24 1:31 [PATCH AUTOSEL 6.4 01/40] serial: stm32: Ignore return value of uart_remove_one_port() in .remove() Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 02/40] led: qcom-lpg: Fix resource leaks in for_each_available_child_of_node() loops Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 03/40] media: v4l2-mem2mem: add lock to protect parameter num_rdy Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 04/40] media: camss: set VFE bpl_alignment to 16 for sdm845 and sm8250 Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 05/40] usb: gadget: u_serial: Avoid spinlock recursion in __gs_console_push Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 06/40] usb: gadget: uvc: queue empty isoc requests if no video buffer is available Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 07/40] media: platform: mediatek: vpu: fix NULL ptr dereference Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 08/40] thunderbolt: Read retimer NVM authentication status prior tb_retimer_set_inbound_sbtx() Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 09/40] xhci: Don't require a valid get_quirks() function pointer during xhci setup Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 10/40] xhci: get rid of XHCI_PLAT quirk that used to prevent MSI setup Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 11/40] usb: chipidea: imx: don't request QoS for imx8ulp Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 12/40] usb: cdns2: Device side header file for CDNS2 driver Sasha Levin
2023-07-24 4:09 ` Greg Kroah-Hartman
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 13/40] usb: chipidea: imx: turn off vbus comparator when suspend Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 14/40] usb: chipidea: imx: add missing USB PHY DPDM wakeup setting Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 15/40] gfs2: Fix possible data races in gfs2_show_options() Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 16/40] pcmcia: rsrc_nonstatic: Fix memory leak in nonstatic_release_resource_db() Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 17/40] thunderbolt: Add Intel Barlow Ridge PCI ID Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 18/40] thunderbolt: Limit Intel Barlow Ridge USB3 bandwidth Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 19/40] firewire: net: fix use after free in fwnet_finish_incoming_packet() Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 20/40] watchdog: sp5100_tco: support Hygon FCH/SCH (Server Controller Hub) Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 21/40] Bluetooth: L2CAP: Fix use-after-free Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 22/40] Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_ready_cb Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 23/40] Bluetooth: btusb: Add MT7922 bluetooth ID for the Asus Ally Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 24/40] ceph: try to dump the msgs when decoding fails Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 25/40] drm/amdgpu: Fix potential fence use-after-free v2 Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 26/40] f2fs: fix to do sanity check on direct node in truncate_dnode() Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 27/40] fs/ntfs3: Enhance sanity check while generating attr_list Sasha Levin
2023-07-24 1:31 ` Sasha Levin [this message]
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 29/40] fs: ntfs3: Fix possible null-pointer dereferences in mi_read() Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 30/40] fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list() Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 31/40] fs/ntfs3: Mark ntfs dirty when on-disk struct is corrupted Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 32/40] fs/ntfs3: Alternative boot if primary boot " Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 33/40] ALSA: hda/realtek: Add quirks for Unis H3C Desktop B760 & Q760 Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 34/40] ALSA: hda: fix a possible null-pointer dereference due to data race in snd_hdac_regmap_sync() Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 35/40] ALSA: hda/realtek: Add quirk for ASUS ROG GX650P Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 36/40] ALSA: hda/realtek: Add quirk for ASUS ROG GA402X Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 37/40] ALSA: hda/realtek: Amend G634 quirk to enable rear speakers Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 38/40] ALSA: hda/realtek: Add quirk for ASUS ROG G614Jx Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 39/40] apparmor: fix use of strcpy in policy_unpack_test Sasha Levin
2023-07-24 1:31 ` [PATCH AUTOSEL 6.4 40/40] ALSA: hda/realtek: Add quirk for ASUS ROG GZ301V Sasha Levin
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