From: bugzilla-daemon@kernel.org
To: linux-f2fs-devel@lists.sourceforge.net
Subject: [f2fs-dev] [Bug 216456] New: KASAN: use-after-free in check_index_in_prev_nodes when mount a crafted f2fs image
Date: Wed, 07 Sep 2022 01:56:26 +0000 [thread overview]
Message-ID: <bug-216456-202145@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=216456
Bug ID: 216456
Summary: KASAN: use-after-free in check_index_in_prev_nodes
when mount a crafted f2fs image
Product: File System
Version: 2.5
Kernel Version: 5.19.X - 6.0-rc4
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: f2fs
Assignee: filesystem_f2fs@kernel-bugs.kernel.org
Reporter: wenqingliu0120@gmail.com
Regression: No
Created attachment 301759
--> https://bugzilla.kernel.org/attachment.cgi?id=301759&action=edit
corrupted image and poc
- Overview
BUG: KASAN: use-after-free in check_index_in_prev_nodes when mount a crafted
f2fs image
- Reproduce
tested on kernel 5.19.X - 6.0-rc4, might need to unzip the file and run several
times to trigger
# mkdir mnt
# mount tmp8.img mnt
-Kernel dump
[ 49.354691] loop5: detected capacity change from 0 to 131072
[ 49.594237] F2FS-fs (loop5): recover_inode: ino = 6, name = hln, inline = 1
[ 49.594282] F2FS-fs (loop5): recover_data: ino = 6 (i_size: recover)
recovered = 0, err = 0
[ 49.594286] F2FS-fs (loop5): recover_inode: ino = 6, name = hln, inline = 1
[ 49.594312] F2FS-fs (loop5): recover_data: ino = 6 (i_size: recover)
recovered = 0, err = 0
[ 49.594315] F2FS-fs (loop5): recover_inode: ino = 6, name = hln, inline = 1
[ 49.594402] F2FS-fs (loop5): recover_data: ino = 6 (i_size: recover)
recovered = 1, err = 0
[ 49.594532] F2FS-fs (loop5): Bitmap was wrongly set, blk:5634
[ 49.594595] ------------[ cut here ]------------
[ 49.594597] WARNING: CPU: 3 PID: 1013 at fs/f2fs/segment.c:2198
update_sit_entry+0xa55/0x10b0 [f2fs]
[ 49.594633] Modules linked in: f2fs crc32_generic input_leds joydev
serio_raw qemu_fw_cfg xfs autofs4 raid10 raid456 async_raid6_recov async_memcpy
async_pq async_xor async_tx raid1 raid0 multipath linear qxl drm_ttm_helper ttm
drm_kms_helper hid_generic usbhid hid syscopyarea sysfillrect sysimgblt
crct10dif_pclmul fb_sys_fops crc32_pclmul drm ghash_clmulni_intel aesni_intel
psmouse crypto_simd cryptd
[ 49.594670] CPU: 3 PID: 1013 Comm: mount Not tainted 6.0.0-rc4 #1
[ 49.594673] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
1.15.0-1 04/01/2014
[ 49.594676] RIP: 0010:update_sit_entry+0xa55/0x10b0 [f2fs]
[ 49.594697] Code: c6 0f 85 35 05 00 00 8b 45 48 e9 8d f6 ff ff 44 89 ca 48
c7 c6 40 f0 08 c1 48 89 df 89 4c 24 10 4c 89 54 24 08 e8 2d 82 05 00 <0f> 0b 48
89 df e8 51 9d ff ff 48 89 ea 4c 8b 54 24 08 48 b8 00 00
[ 49.594699] RSP: 0018:ffffc90000687478 EFLAGS: 00010286
[ 49.594702] RAX: 0000000000000000 RBX: ffff888118bd2000 RCX:
0000000000000000
[ 49.594703] RDX: 0000000000000001 RSI: 0000000000000004 RDI:
fffff520000d0e7f
[ 49.594705] RBP: ffff888131617878 R08: 0000000000000031 R09:
ffffed10526f5092
[ 49.594706] R10: ffff8882937a848b R11: ffffed10526f5091 R12:
0000000000000001
[ 49.594708] R13: 0000000000000200 R14: 0000000000000003 R15:
0000000000000001
[ 49.594709] FS: 00007fd92b755840(0000) GS:ffff888293780000(0000)
knlGS:0000000000000000
[ 49.594711] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 49.594715] CR2: 00007fb5e1c703b8 CR3: 0000000145eb4002 CR4:
0000000000370ee0
[ 49.594718] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 49.594719] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[ 49.594722] Call Trace:
[ 49.594723] <TASK>
[ 49.594725] f2fs_do_replace_block+0xa98/0x1890 [f2fs]
[ 49.594747] ? f2fs_remove_dirty_inode+0x91/0x530 [f2fs]
[ 49.594768] f2fs_replace_block+0xeb/0x180 [f2fs]
[ 49.594788] ? call_rcu+0x26e/0x5d0
[ 49.594791] ? f2fs_do_replace_block+0x1890/0x1890 [f2fs]
[ 49.594811] ? free_inode_nonrcu+0x20/0x20
[ 49.594815] ? call_rcu+0x26e/0x5d0
[ 49.594817] recover_data+0x1a69/0x6ae0 [f2fs]
[ 49.594839] ? f2fs_put_page.constprop.0+0x4c0/0x4c0 [f2fs]
[ 49.594859] ? __get_meta_page+0x1c4/0x880 [f2fs]
[ 49.594878] ? filemap_map_pages+0x1390/0x1390
[ 49.594883] ? pagecache_get_page+0x50/0x150
[ 49.594886] f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs]
[ 49.594906] ? _raw_write_unlock+0x39/0x70
[ 49.594909] ? proc_register+0x2d4/0x4c0
[ 49.594912] ? f2fs_space_for_roll_forward+0x1d0/0x1d0 [f2fs]
[ 49.594931] ? proc_create_single_data+0xbf/0x120
[ 49.594933] ? f2fs_remove_orphan_inode+0x10/0x10 [f2fs]
[ 49.594953] ? f2fs_register_sysfs+0x37f/0x490 [f2fs]
[ 49.594974] f2fs_fill_super+0x4665/0x61e0 [f2fs]
[ 49.594995] ? f2fs_commit_super+0x740/0x740 [f2fs]
[ 49.595013] ? mutex_unlock+0x80/0xd0
[ 49.595015] ? __mutex_unlock_slowpath.isra.0+0x2d0/0x2d0
[ 49.595018] ? sget+0x3a4/0x490
[ 49.595021] mount_bdev+0x2cf/0x3b0
[ 49.595022] ? f2fs_commit_super+0x740/0x740 [f2fs]
[ 49.595040] ? __bpf_trace_f2fs__rw_start+0x10/0x10 [f2fs]
[ 49.595058] legacy_get_tree+0xed/0x1d0
[ 49.595061] ? security_capable+0x53/0xa0
[ 49.595064] vfs_get_tree+0x81/0x2b0
[ 49.595067] ? ns_capable_common+0x57/0xe0
[ 49.595070] path_mount+0x47e/0x19d0
[ 49.595073] ? kasan_quarantine_put+0x55/0x180
[ 49.595076] ? finish_automount+0x5f0/0x5f0
[ 49.595079] ? user_path_at_empty+0x45/0x60
[ 49.595081] ? kmem_cache_free+0x1c2/0x4e0
[ 49.595084] ? slab_post_alloc_hook+0x48/0x2d0
[ 49.595087] do_mount+0xce/0xf0
[ 49.595089] ? path_mount+0x19d0/0x19d0
[ 49.595092] ? _copy_from_user+0x50/0x80
[ 49.595095] ? memdup_user+0x4e/0xa0
[ 49.595098] __x64_sys_mount+0x12c/0x1a0
[ 49.595101] do_syscall_64+0x38/0x90
[ 49.595103] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 49.595106] RIP: 0033:0x7fd92b9b4c7e
[ 49.595110] Code: 48 8b 0d 15 c2 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e
0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48 8b 0d e2 c1 0c 00 f7 d8 64 89 01 48
[ 49.595112] RSP: 002b:00007ffc28ddba78 EFLAGS: 00000246 ORIG_RAX:
00000000000000a5
[ 49.595114] RAX: ffffffffffffffda RBX: 00007fd92bae6204 RCX:
00007fd92b9b4c7e
[ 49.595116] RDX: 000055fd9bb49e80 RSI: 000055fd9bb4a270 RDI:
000055fd9bb49e20
[ 49.595117] RBP: 000055fd9bb41460 R08: 0000000000000000 R09:
00007fd92ba81d60
[ 49.595119] R10: 0000000000000000 R11: 0000000000000246 R12:
0000000000000000
[ 49.595120] R13: 000055fd9bb49e20 R14: 000055fd9bb49e80 R15:
000055fd9bb41460
[ 49.595122] </TASK>
[ 49.595125] ---[ end trace 0000000000000000 ]---
[ 49.595556]
==================================================================
[ 49.595595] BUG: KASAN: use-after-free in recover_data+0x63ae/0x6ae0 [f2fs]
[ 49.595649] Read of size 4 at addr ffff8881464dcd80 by task mount/1013
[ 49.595686] CPU: 3 PID: 1013 Comm: mount Tainted: G W
6.0.0-rc4 #1
[ 49.595717] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
1.15.0-1 04/01/2014
[ 49.595748] Call Trace:
[ 49.595762] <TASK>
[ 49.595773] dump_stack_lvl+0x45/0x5e
[ 49.595792] print_report.cold+0xf3/0x68d
[ 49.595813] ? f2fs_update_data_blkaddr+0x60/0x60 [f2fs]
[ 49.595854] ? recover_data+0x63ae/0x6ae0 [f2fs]
[ 49.595893] kasan_report+0xa8/0x130
[ 49.595910] ? recover_data+0x63ae/0x6ae0 [f2fs]
[ 49.595948] recover_data+0x63ae/0x6ae0 [f2fs]
[ 49.595986] ? f2fs_put_page.constprop.0+0x4c0/0x4c0 [f2fs]
[ 49.596027] ? __get_meta_page+0x1c4/0x880 [f2fs]
[ 49.596065] ? filemap_map_pages+0x1390/0x1390
[ 49.596088] ? pagecache_get_page+0x50/0x150
[ 49.596108] f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs]
[ 49.596149] ? _raw_write_unlock+0x39/0x70
[ 49.596168] ? proc_register+0x2d4/0x4c0
[ 49.596186] ? f2fs_space_for_roll_forward+0x1d0/0x1d0 [f2fs]
[ 49.596227] ? proc_create_single_data+0xbf/0x120
[ 49.596248] ? f2fs_remove_orphan_inode+0x10/0x10 [f2fs]
[ 49.596288] ? f2fs_register_sysfs+0x37f/0x490 [f2fs]
[ 49.596329] f2fs_fill_super+0x4665/0x61e0 [f2fs]
[ 49.596368] ? f2fs_commit_super+0x740/0x740 [f2fs]
[ 49.596404] ? mutex_unlock+0x80/0xd0
[ 49.596422] ? __mutex_unlock_slowpath.isra.0+0x2d0/0x2d0
[ 49.596445] ? sget+0x3a4/0x490
[ 49.596460] mount_bdev+0x2cf/0x3b0
[ 49.596476] ? f2fs_commit_super+0x740/0x740 [f2fs]
[ 49.596512] ? __bpf_trace_f2fs__rw_start+0x10/0x10 [f2fs]
[ 49.596551] legacy_get_tree+0xed/0x1d0
[ 49.596570] ? security_capable+0x53/0xa0
[ 49.596589] vfs_get_tree+0x81/0x2b0
[ 49.596606] ? ns_capable_common+0x57/0xe0
[ 49.596625] path_mount+0x47e/0x19d0
[ 49.596643] ? kasan_quarantine_put+0x55/0x180
[ 49.596662] ? finish_automount+0x5f0/0x5f0
[ 49.596681] ? user_path_at_empty+0x45/0x60
[ 49.596700] ? kmem_cache_free+0x1c2/0x4e0
[ 49.596719] ? slab_post_alloc_hook+0x48/0x2d0
[ 49.597351] do_mount+0xce/0xf0
[ 49.597977] ? path_mount+0x19d0/0x19d0
[ 49.598594] ? _copy_from_user+0x50/0x80
[ 49.599204] ? memdup_user+0x4e/0xa0
[ 49.599792] __x64_sys_mount+0x12c/0x1a0
[ 49.600370] do_syscall_64+0x38/0x90
[ 49.600937] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 49.601505] RIP: 0033:0x7fd92b9b4c7e
[ 49.602073] Code: 48 8b 0d 15 c2 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e
0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48 8b 0d e2 c1 0c 00 f7 d8 64 89 01 48
[ 49.603264] RSP: 002b:00007ffc28ddba78 EFLAGS: 00000246 ORIG_RAX:
00000000000000a5
[ 49.603879] RAX: ffffffffffffffda RBX: 00007fd92bae6204 RCX:
00007fd92b9b4c7e
[ 49.604503] RDX: 000055fd9bb49e80 RSI: 000055fd9bb4a270 RDI:
000055fd9bb49e20
[ 49.605132] RBP: 000055fd9bb41460 R08: 0000000000000000 R09:
00007fd92ba81d60
[ 49.605763] R10: 0000000000000000 R11: 0000000000000246 R12:
0000000000000000
[ 49.606392] R13: 000055fd9bb49e20 R14: 000055fd9bb49e80 R15:
000055fd9bb41460
[ 49.607021] </TASK>
[ 49.608256] The buggy address belongs to the physical page:
[ 49.608880] page:0000000023fd2496 refcount:0 mapcount:0
mapping:0000000000000000 index:0x0 pfn:0x1464dc
[ 49.608890] flags: 0x17ffffc0000000(node=0|zone=2|lastcpupid=0x1fffff)
[ 49.608894] raw: 0017ffffc0000000 dead000000000100 dead000000000122
0000000000000000
[ 49.608897] raw: 0000000000000000 0000000000000000 00000000ffffffff
0000000000000000
[ 49.608899] page dumped because: kasan: bad access detected
[ 49.609510] Memory state around the buggy address:
[ 49.610140] ffff8881464dcc80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff
[ 49.610782] ffff8881464dcd00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff
[ 49.611453] >ffff8881464dcd80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff
[ 49.612072] ^
[ 49.612688] ffff8881464dce00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff
[ 49.613322] ffff8881464dce80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ff
[ 49.614023]
==================================================================
[ 49.614807] Disabling lock debugging due to kernel taint
[ 49.615758] F2FS-fs (loop5): Bitmap was wrongly set, blk:6144
[ 49.616809] ------------[ cut here ]------------
[ 49.616814] WARNING: CPU: 1 PID: 1013 at fs/f2fs/segment.c:2198
update_sit_entry+0xa55/0x10b0 [f2fs]
[ 49.616893] Modules linked in: f2fs crc32_generic input_leds joydev
serio_raw qemu_fw_cfg xfs autofs4 raid10 raid456 async_raid6_recov async_memcpy
async_pq async_xor async_tx raid1 raid0 multipath linear qxl drm_ttm_helper ttm
drm_kms_helper hid_generic usbhid hid syscopyarea sysfillrect sysimgblt
crct10dif_pclmul fb_sys_fops crc32_pclmul drm ghash_clmulni_intel aesni_intel
psmouse crypto_simd cryptd
[ 49.616954] CPU: 1 PID: 1013 Comm: mount Tainted: G B W
6.0.0-rc4 #1
[ 49.616960] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
1.15.0-1 04/01/2014
[ 49.616963] RIP: 0010:update_sit_entry+0xa55/0x10b0 [f2fs]
[ 49.617003] Code: c6 0f 85 35 05 00 00 8b 45 48 e9 8d f6 ff ff 44 89 ca 48
c7 c6 40 f0 08 c1 48 89 df 89 4c 24 10 4c 89 54 24 08 e8 2d 82 05 00 <0f> 0b 48
89 df e8 51 9d ff ff 48 89 ea 4c 8b 54 24 08 48 b8 00 00
[ 49.617006] RSP: 0018:ffffc90000687478 EFLAGS: 00010286
[ 49.617010] RAX: 0000000000000000 RBX: ffff888118bd2000 RCX:
0000000000000000
[ 49.617012] RDX: 0000000000000001 RSI: ffffffff9d263020 RDI:
fffff520000d0e7f
[ 49.617014] RBP: ffff8881316178a0 R08: 0000000000000031 R09:
ffffed10526d68b9
[ 49.617016] R10: ffff8882936b45c7 R11: ffffed10526d68b8 R12:
0000000000000001
[ 49.617019] R13: 0000000000000200 R14: 0000000000000004 R15:
0000000000000001
[ 49.617021] FS: 00007fd92b755840(0000) GS:ffff888293680000(0000)
knlGS:0000000000000000
[ 49.617024] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 49.617026] CR2: 00007fceac022008 CR3: 0000000145eb4004 CR4:
0000000000370ee0
[ 49.617032] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 49.617034] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[ 49.617036] Call Trace:
[ 49.617038] <TASK>
[ 49.617042] f2fs_do_replace_block+0xa98/0x1890 [f2fs]
[ 49.617080] ? asm_common_interrupt+0x1/0x40
[ 49.617089] f2fs_replace_block+0xeb/0x180 [f2fs]
[ 49.617123] ? f2fs_do_replace_block+0x1890/0x1890 [f2fs]
[ 49.617158] recover_data+0x1a69/0x6ae0 [f2fs]
[ 49.617196] ? f2fs_put_page.constprop.0+0x4c0/0x4c0 [f2fs]
[ 49.617231] ? __get_meta_page+0x1c4/0x880 [f2fs]
[ 49.617265] ? filemap_map_pages+0x1390/0x1390
[ 49.617274] ? pagecache_get_page+0x50/0x150
[ 49.617280] f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs]
[ 49.617315] ? _raw_write_unlock+0x39/0x70
[ 49.617320] ? proc_register+0x2d4/0x4c0
[ 49.617325] ? f2fs_space_for_roll_forward+0x1d0/0x1d0 [f2fs]
[ 49.617360] ? proc_create_single_data+0xbf/0x120
[ 49.617365] ? f2fs_remove_orphan_inode+0x10/0x10 [f2fs]
[ 49.617415] ? f2fs_register_sysfs+0x37f/0x490 [f2fs]
[ 49.617455] f2fs_fill_super+0x4665/0x61e0 [f2fs]
[ 49.617496] ? f2fs_commit_super+0x740/0x740 [f2fs]
[ 49.617530] ? mutex_unlock+0x80/0xd0
[ 49.617535] ? __mutex_unlock_slowpath.isra.0+0x2d0/0x2d0
[ 49.617539] ? sget+0x3a4/0x490
[ 49.617542] mount_bdev+0x2cf/0x3b0
[ 49.617545] ? f2fs_commit_super+0x740/0x740 [f2fs]
[ 49.617577] ? __bpf_trace_f2fs__rw_start+0x10/0x10 [f2fs]
[ 49.617610] legacy_get_tree+0xed/0x1d0
[ 49.617616] ? security_capable+0x53/0xa0
[ 49.617622] vfs_get_tree+0x81/0x2b0
[ 49.617627] ? ns_capable_common+0x57/0xe0
[ 49.617632] path_mount+0x47e/0x19d0
[ 49.617638] ? kasan_quarantine_put+0x55/0x180
[ 49.617643] ? finish_automount+0x5f0/0x5f0
[ 49.617647] ? user_path_at_empty+0x45/0x60
[ 49.617650] ? kmem_cache_free+0x1c2/0x4e0
[ 49.617656] ? slab_post_alloc_hook+0x48/0x2d0
[ 49.617661] do_mount+0xce/0xf0
[ 49.617666] ? path_mount+0x19d0/0x19d0
[ 49.617670] ? _copy_from_user+0x50/0x80
[ 49.617675] ? memdup_user+0x4e/0xa0
[ 49.617682] __x64_sys_mount+0x12c/0x1a0
[ 49.617686] do_syscall_64+0x38/0x90
[ 49.617692] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 49.617696] RIP: 0033:0x7fd92b9b4c7e
[ 49.617701] Code: 48 8b 0d 15 c2 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e
0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48 8b 0d e2 c1 0c 00 f7 d8 64 89 01 48
[ 49.617704] RSP: 002b:00007ffc28ddba78 EFLAGS: 00000246 ORIG_RAX:
00000000000000a5
[ 49.617709] RAX: ffffffffffffffda RBX: 00007fd92bae6204 RCX:
00007fd92b9b4c7e
[ 49.617711] RDX: 000055fd9bb49e80 RSI: 000055fd9bb4a270 RDI:
000055fd9bb49e20
[ 49.617713] RBP: 000055fd9bb41460 R08: 0000000000000000 R09:
00007fd92ba81d60
[ 49.617715] R10: 0000000000000000 R11: 0000000000000246 R12:
0000000000000000
[ 49.617717] R13: 000055fd9bb49e20 R14: 000055fd9bb49e80 R15:
000055fd9bb41460
[ 49.617721] </TASK>
[ 49.617723] ---[ end trace 0000000000000000 ]---
[ 49.617878] F2FS-fs (loop5): recover_data: ino = 6 (i_size: recover)
recovered = 8, err = -2
[ 49.618311] F2FS-fs (loop5): Cannot recover all fsync data errno=-2
[ 49.638221] F2FS-fs (loop5): Mounted with checkpoint version = 7548c2ec
--
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