From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Chao Yu <yuchao0@huawei.com>,
Jaegeuk Kim <jaegeuk@kernel.org>,
Ben Hutchings <ben.hutchings@codethink.co.uk>
Subject: [PATCH 4.9 100/101] f2fs: fix to do sanity check with cp_pack_start_sum
Date: Thu, 6 Dec 2018 15:39:39 +0100 [thread overview]
Message-ID: <20181206143018.979787297@linuxfoundation.org> (raw)
In-Reply-To: <20181206143011.174892052@linuxfoundation.org>
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ben Hutchings <ben.hutchings@codethink.co.uk>
commit e494c2f995d6181d6e29c4927d68e0f295ecf75b upstream.
After fuzzing, cp_pack_start_sum could be corrupted, so current log's
summary info should be wrong due to loading incorrect summary block.
Then, if segment's type in current log is exceeded NR_CURSEG_TYPE, it
can lead accessing invalid dirty_i->dirty_segmap bitmap finally.
Add sanity check for cp_pack_start_sum to fix this issue.
https://bugzilla.kernel.org/show_bug.cgi?id=200419
- Reproduce
- Kernel message (f2fs-dev w/ KASAN)
[ 3117.578432] F2FS-fs (loop0): Invalid log blocks per segment (8)
[ 3117.578445] F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock
[ 3117.581364] F2FS-fs (loop0): invalid crc_offset: 30716
[ 3117.583564] WARNING: CPU: 1 PID: 1225 at fs/f2fs/checkpoint.c:90 __get_meta_page+0x448/0x4b0
[ 3117.583570] Modules linked in: snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer joydev input_leds serio_raw snd soundcore mac_hid i2c_piix4 ib_iser rdma_cm iw_cm ib_cm ib_core configfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi btrfs zstd_decompress zstd_compress xxhash raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear 8139too qxl ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel psmouse aes_x86_64 8139cp crypto_simd cryptd mii glue_helper pata_acpi floppy
[ 3117.584014] CPU: 1 PID: 1225 Comm: mount Not tainted 4.17.0+ #1
[ 3117.584017] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 3117.584022] RIP: 0010:__get_meta_page+0x448/0x4b0
[ 3117.584023] Code: 00 49 8d bc 24 84 00 00 00 e8 74 54 da ff 41 83 8c 24 84 00 00 00 08 4c 89 f6 4c 89 ef e8 c0 d9 95 00 48 89 ef e8 18 e3 00 00 <0f> 0b f0 80 4d 48 04 e9 0f fe ff ff 0f 0b 48 89 c7 48 89 04 24 e8
[ 3117.584072] RSP: 0018:ffff88018eb678c0 EFLAGS: 00010286
[ 3117.584082] RAX: ffff88018f0a6a78 RBX: ffffea0007a46600 RCX: ffffffff9314d1b2
[ 3117.584085] RDX: ffffffff00000001 RSI: 0000000000000000 RDI: ffff88018f0a6a98
[ 3117.584087] RBP: ffff88018ebe9980 R08: 0000000000000002 R09: 0000000000000001
[ 3117.584090] R10: 0000000000000001 R11: ffffed00326e4450 R12: ffff880193722200
[ 3117.584092] R13: ffff88018ebe9afc R14: 0000000000000206 R15: ffff88018eb67900
[ 3117.584096] FS: 00007f5694636840(0000) GS:ffff8801f3b00000(0000) knlGS:0000000000000000
[ 3117.584098] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3117.584101] CR2: 00000000016f21b8 CR3: 0000000191c22000 CR4: 00000000000006e0
[ 3117.584112] Call Trace:
[ 3117.584121] ? f2fs_set_meta_page_dirty+0x150/0x150
[ 3117.584127] ? f2fs_build_segment_manager+0xbf9/0x3190
[ 3117.584133] ? f2fs_npages_for_summary_flush+0x75/0x120
[ 3117.584145] f2fs_build_segment_manager+0xda8/0x3190
[ 3117.584151] ? f2fs_get_valid_checkpoint+0x298/0xa00
[ 3117.584156] ? f2fs_flush_sit_entries+0x10e0/0x10e0
[ 3117.584184] ? map_id_range_down+0x17c/0x1b0
[ 3117.584188] ? __put_user_ns+0x30/0x30
[ 3117.584206] ? find_next_bit+0x53/0x90
[ 3117.584237] ? cpumask_next+0x16/0x20
[ 3117.584249] f2fs_fill_super+0x1948/0x2b40
[ 3117.584258] ? f2fs_commit_super+0x1a0/0x1a0
[ 3117.584279] ? sget_userns+0x65e/0x690
[ 3117.584296] ? set_blocksize+0x88/0x130
[ 3117.584302] ? f2fs_commit_super+0x1a0/0x1a0
[ 3117.584305] mount_bdev+0x1c0/0x200
[ 3117.584310] mount_fs+0x5c/0x190
[ 3117.584320] vfs_kern_mount+0x64/0x190
[ 3117.584330] do_mount+0x2e4/0x1450
[ 3117.584343] ? lockref_put_return+0x130/0x130
[ 3117.584347] ? copy_mount_string+0x20/0x20
[ 3117.584357] ? kasan_unpoison_shadow+0x31/0x40
[ 3117.584362] ? kasan_kmalloc+0xa6/0xd0
[ 3117.584373] ? memcg_kmem_put_cache+0x16/0x90
[ 3117.584377] ? __kmalloc_track_caller+0x196/0x210
[ 3117.584383] ? _copy_from_user+0x61/0x90
[ 3117.584396] ? memdup_user+0x3e/0x60
[ 3117.584401] ksys_mount+0x7e/0xd0
[ 3117.584405] __x64_sys_mount+0x62/0x70
[ 3117.584427] do_syscall_64+0x73/0x160
[ 3117.584440] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 3117.584455] RIP: 0033:0x7f5693f14b9a
[ 3117.584456] Code: 48 8b 0d 01 c3 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ce c2 2b 00 f7 d8 64 89 01 48
[ 3117.584505] RSP: 002b:00007fff27346488 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
[ 3117.584510] RAX: ffffffffffffffda RBX: 00000000016e2030 RCX: 00007f5693f14b9a
[ 3117.584512] RDX: 00000000016e2210 RSI: 00000000016e3f30 RDI: 00000000016ee040
[ 3117.584514] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000013
[ 3117.584516] R10: 00000000c0ed0000 R11: 0000000000000206 R12: 00000000016ee040
[ 3117.584519] R13: 00000000016e2210 R14: 0000000000000000 R15: 0000000000000003
[ 3117.584523] ---[ end trace a8e0d899985faf31 ]---
[ 3117.685663] F2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=2, run fsck to fix.
[ 3117.685673] F2FS-fs (loop0): recover_data: ino = 2 (i_size: recover) recovered = 1, err = 0
[ 3117.685707] ==================================================================
[ 3117.685955] BUG: KASAN: slab-out-of-bounds in __remove_dirty_segment+0xdd/0x1e0
[ 3117.686175] Read of size 8 at addr ffff88018f0a63d0 by task mount/1225
[ 3117.686477] CPU: 0 PID: 1225 Comm: mount Tainted: G W 4.17.0+ #1
[ 3117.686481] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 3117.686483] Call Trace:
[ 3117.686494] dump_stack+0x71/0xab
[ 3117.686512] print_address_description+0x6b/0x290
[ 3117.686517] kasan_report+0x28e/0x390
[ 3117.686522] ? __remove_dirty_segment+0xdd/0x1e0
[ 3117.686527] __remove_dirty_segment+0xdd/0x1e0
[ 3117.686532] locate_dirty_segment+0x189/0x190
[ 3117.686538] f2fs_allocate_new_segments+0xa9/0xe0
[ 3117.686543] recover_data+0x703/0x2c20
[ 3117.686547] ? f2fs_recover_fsync_data+0x48f/0xd50
[ 3117.686553] ? ksys_mount+0x7e/0xd0
[ 3117.686564] ? policy_nodemask+0x1a/0x90
[ 3117.686567] ? policy_node+0x56/0x70
[ 3117.686571] ? add_fsync_inode+0xf0/0xf0
[ 3117.686592] ? blk_finish_plug+0x44/0x60
[ 3117.686597] ? f2fs_ra_meta_pages+0x38b/0x5e0
[ 3117.686602] ? find_inode_fast+0xac/0xc0
[ 3117.686606] ? f2fs_is_valid_blkaddr+0x320/0x320
[ 3117.686618] ? __radix_tree_lookup+0x150/0x150
[ 3117.686633] ? dqget+0x670/0x670
[ 3117.686648] ? pagecache_get_page+0x29/0x410
[ 3117.686656] ? kmem_cache_alloc+0x176/0x1e0
[ 3117.686660] ? f2fs_is_valid_blkaddr+0x11d/0x320
[ 3117.686664] f2fs_recover_fsync_data+0xc23/0xd50
[ 3117.686670] ? f2fs_space_for_roll_forward+0x60/0x60
[ 3117.686674] ? rb_insert_color+0x323/0x3d0
[ 3117.686678] ? f2fs_recover_orphan_inodes+0xa5/0x700
[ 3117.686683] ? proc_register+0x153/0x1d0
[ 3117.686686] ? f2fs_remove_orphan_inode+0x10/0x10
[ 3117.686695] ? f2fs_attr_store+0x50/0x50
[ 3117.686700] ? proc_create_single_data+0x52/0x60
[ 3117.686707] f2fs_fill_super+0x1d06/0x2b40
[ 3117.686728] ? f2fs_commit_super+0x1a0/0x1a0
[ 3117.686735] ? sget_userns+0x65e/0x690
[ 3117.686740] ? set_blocksize+0x88/0x130
[ 3117.686745] ? f2fs_commit_super+0x1a0/0x1a0
[ 3117.686748] mount_bdev+0x1c0/0x200
[ 3117.686753] mount_fs+0x5c/0x190
[ 3117.686758] vfs_kern_mount+0x64/0x190
[ 3117.686762] do_mount+0x2e4/0x1450
[ 3117.686769] ? lockref_put_return+0x130/0x130
[ 3117.686773] ? copy_mount_string+0x20/0x20
[ 3117.686777] ? kasan_unpoison_shadow+0x31/0x40
[ 3117.686780] ? kasan_kmalloc+0xa6/0xd0
[ 3117.686786] ? memcg_kmem_put_cache+0x16/0x90
[ 3117.686790] ? __kmalloc_track_caller+0x196/0x210
[ 3117.686795] ? _copy_from_user+0x61/0x90
[ 3117.686801] ? memdup_user+0x3e/0x60
[ 3117.686804] ksys_mount+0x7e/0xd0
[ 3117.686809] __x64_sys_mount+0x62/0x70
[ 3117.686816] do_syscall_64+0x73/0x160
[ 3117.686824] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 3117.686829] RIP: 0033:0x7f5693f14b9a
[ 3117.686830] Code: 48 8b 0d 01 c3 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ce c2 2b 00 f7 d8 64 89 01 48
[ 3117.686887] RSP: 002b:00007fff27346488 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
[ 3117.686892] RAX: ffffffffffffffda RBX: 00000000016e2030 RCX: 00007f5693f14b9a
[ 3117.686894] RDX: 00000000016e2210 RSI: 00000000016e3f30 RDI: 00000000016ee040
[ 3117.686896] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000013
[ 3117.686899] R10: 00000000c0ed0000 R11: 0000000000000206 R12: 00000000016ee040
[ 3117.686901] R13: 00000000016e2210 R14: 0000000000000000 R15: 0000000000000003
[ 3117.687005] Allocated by task 1225:
[ 3117.687152] kasan_kmalloc+0xa6/0xd0
[ 3117.687157] kmem_cache_alloc_trace+0xfd/0x200
[ 3117.687161] f2fs_build_segment_manager+0x2d09/0x3190
[ 3117.687165] f2fs_fill_super+0x1948/0x2b40
[ 3117.687168] mount_bdev+0x1c0/0x200
[ 3117.687171] mount_fs+0x5c/0x190
[ 3117.687174] vfs_kern_mount+0x64/0x190
[ 3117.687177] do_mount+0x2e4/0x1450
[ 3117.687180] ksys_mount+0x7e/0xd0
[ 3117.687182] __x64_sys_mount+0x62/0x70
[ 3117.687186] do_syscall_64+0x73/0x160
[ 3117.687190] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 3117.687285] Freed by task 19:
[ 3117.687412] __kasan_slab_free+0x137/0x190
[ 3117.687416] kfree+0x8b/0x1b0
[ 3117.687460] ttm_bo_man_put_node+0x61/0x80 [ttm]
[ 3117.687476] ttm_bo_cleanup_refs+0x15f/0x250 [ttm]
[ 3117.687492] ttm_bo_delayed_delete+0x2f0/0x300 [ttm]
[ 3117.687507] ttm_bo_delayed_workqueue+0x17/0x50 [ttm]
[ 3117.687528] process_one_work+0x2f9/0x740
[ 3117.687531] worker_thread+0x78/0x6b0
[ 3117.687541] kthread+0x177/0x1c0
[ 3117.687545] ret_from_fork+0x35/0x40
[ 3117.687638] The buggy address belongs to the object at ffff88018f0a6300
which belongs to the cache kmalloc-192 of size 192
[ 3117.688014] The buggy address is located 16 bytes to the right of
192-byte region [ffff88018f0a6300, ffff88018f0a63c0)
[ 3117.688382] The buggy address belongs to the page:
[ 3117.688554] page:ffffea00063c2980 count:1 mapcount:0 mapping:ffff8801f3403180 index:0x0
[ 3117.688788] flags: 0x17fff8000000100(slab)
[ 3117.688944] raw: 017fff8000000100 ffffea00063c2840 0000000e0000000e ffff8801f3403180
[ 3117.689166] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
[ 3117.689386] page dumped because: kasan: bad access detected
[ 3117.689653] Memory state around the buggy address:
[ 3117.689816] ffff88018f0a6280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 3117.690027] ffff88018f0a6300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3117.690239] >ffff88018f0a6380: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 3117.690448] ^
[ 3117.690644] ffff88018f0a6400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3117.690868] ffff88018f0a6480: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 3117.691077] ==================================================================
[ 3117.691290] Disabling lock debugging due to kernel taint
[ 3117.693893] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
[ 3117.694120] PGD 80000001f01bc067 P4D 80000001f01bc067 PUD 1d9638067 PMD 0
[ 3117.694338] Oops: 0002 [#1] SMP KASAN PTI
[ 3117.694490] CPU: 1 PID: 1225 Comm: mount Tainted: G B W 4.17.0+ #1
[ 3117.694703] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 3117.695073] RIP: 0010:__remove_dirty_segment+0xe2/0x1e0
[ 3117.695246] Code: c4 48 89 c7 e8 cf bb d7 ff 45 0f b6 24 24 41 83 e4 3f 44 88 64 24 07 41 83 e4 3f 4a 8d 7c e3 08 e8 b3 bc d7 ff 4a 8b 4c e3 08 <f0> 4c 0f b3 29 0f 82 94 00 00 00 48 8d bd 20 04 00 00 e8 97 bb d7
[ 3117.695793] RSP: 0018:ffff88018eb67638 EFLAGS: 00010292
[ 3117.695969] RAX: 0000000000000000 RBX: ffff88018f0a6300 RCX: 0000000000000000
[ 3117.696182] RDX: 0000000000000000 RSI: 0000000000000297 RDI: 0000000000000297
[ 3117.696391] RBP: ffff88018ebe9980 R08: ffffed003e743ebb R09: ffffed003e743ebb
[ 3117.696604] R10: 0000000000000001 R11: ffffed003e743eba R12: 0000000000000019
[ 3117.696813] R13: 0000000000000014 R14: 0000000000000320 R15: ffff88018ebe99e0
[ 3117.697032] FS: 00007f5694636840(0000) GS:ffff8801f3b00000(0000) knlGS:0000000000000000
[ 3117.697280] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3117.702357] CR2: 00007fe89bb1a000 CR3: 0000000191c22000 CR4: 00000000000006e0
[ 3117.707235] Call Trace:
[ 3117.712077] locate_dirty_segment+0x189/0x190
[ 3117.716891] f2fs_allocate_new_segments+0xa9/0xe0
[ 3117.721617] recover_data+0x703/0x2c20
[ 3117.726316] ? f2fs_recover_fsync_data+0x48f/0xd50
[ 3117.730957] ? ksys_mount+0x7e/0xd0
[ 3117.735573] ? policy_nodemask+0x1a/0x90
[ 3117.740198] ? policy_node+0x56/0x70
[ 3117.744829] ? add_fsync_inode+0xf0/0xf0
[ 3117.749487] ? blk_finish_plug+0x44/0x60
[ 3117.754152] ? f2fs_ra_meta_pages+0x38b/0x5e0
[ 3117.758831] ? find_inode_fast+0xac/0xc0
[ 3117.763448] ? f2fs_is_valid_blkaddr+0x320/0x320
[ 3117.768046] ? __radix_tree_lookup+0x150/0x150
[ 3117.772603] ? dqget+0x670/0x670
[ 3117.777159] ? pagecache_get_page+0x29/0x410
[ 3117.781648] ? kmem_cache_alloc+0x176/0x1e0
[ 3117.786067] ? f2fs_is_valid_blkaddr+0x11d/0x320
[ 3117.790476] f2fs_recover_fsync_data+0xc23/0xd50
[ 3117.794790] ? f2fs_space_for_roll_forward+0x60/0x60
[ 3117.799086] ? rb_insert_color+0x323/0x3d0
[ 3117.803304] ? f2fs_recover_orphan_inodes+0xa5/0x700
[ 3117.807563] ? proc_register+0x153/0x1d0
[ 3117.811766] ? f2fs_remove_orphan_inode+0x10/0x10
[ 3117.815947] ? f2fs_attr_store+0x50/0x50
[ 3117.820087] ? proc_create_single_data+0x52/0x60
[ 3117.824262] f2fs_fill_super+0x1d06/0x2b40
[ 3117.828367] ? f2fs_commit_super+0x1a0/0x1a0
[ 3117.832432] ? sget_userns+0x65e/0x690
[ 3117.836500] ? set_blocksize+0x88/0x130
[ 3117.840501] ? f2fs_commit_super+0x1a0/0x1a0
[ 3117.844420] mount_bdev+0x1c0/0x200
[ 3117.848275] mount_fs+0x5c/0x190
[ 3117.852053] vfs_kern_mount+0x64/0x190
[ 3117.855810] do_mount+0x2e4/0x1450
[ 3117.859441] ? lockref_put_return+0x130/0x130
[ 3117.862996] ? copy_mount_string+0x20/0x20
[ 3117.866417] ? kasan_unpoison_shadow+0x31/0x40
[ 3117.869719] ? kasan_kmalloc+0xa6/0xd0
[ 3117.872948] ? memcg_kmem_put_cache+0x16/0x90
[ 3117.876121] ? __kmalloc_track_caller+0x196/0x210
[ 3117.879333] ? _copy_from_user+0x61/0x90
[ 3117.882467] ? memdup_user+0x3e/0x60
[ 3117.885604] ksys_mount+0x7e/0xd0
[ 3117.888700] __x64_sys_mount+0x62/0x70
[ 3117.891742] do_syscall_64+0x73/0x160
[ 3117.894692] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 3117.897669] RIP: 0033:0x7f5693f14b9a
[ 3117.900563] Code: 48 8b 0d 01 c3 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ce c2 2b 00 f7 d8 64 89 01 48
[ 3117.906922] RSP: 002b:00007fff27346488 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
[ 3117.910159] RAX: ffffffffffffffda RBX: 00000000016e2030 RCX: 00007f5693f14b9a
[ 3117.913469] RDX: 00000000016e2210 RSI: 00000000016e3f30 RDI: 00000000016ee040
[ 3117.916764] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000013
[ 3117.920071] R10: 00000000c0ed0000 R11: 0000000000000206 R12: 00000000016ee040
[ 3117.923393] R13: 00000000016e2210 R14: 0000000000000000 R15: 0000000000000003
[ 3117.926680] Modules linked in: snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer joydev input_leds serio_raw snd soundcore mac_hid i2c_piix4 ib_iser rdma_cm iw_cm ib_cm ib_core configfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi btrfs zstd_decompress zstd_compress xxhash raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear 8139too qxl ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel psmouse aes_x86_64 8139cp crypto_simd cryptd mii glue_helper pata_acpi floppy
[ 3117.949979] CR2: 0000000000000000
[ 3117.954283] ---[ end trace a8e0d899985faf32 ]---
[ 3117.958575] RIP: 0010:__remove_dirty_segment+0xe2/0x1e0
[ 3117.962810] Code: c4 48 89 c7 e8 cf bb d7 ff 45 0f b6 24 24 41 83 e4 3f 44 88 64 24 07 41 83 e4 3f 4a 8d 7c e3 08 e8 b3 bc d7 ff 4a 8b 4c e3 08 <f0> 4c 0f b3 29 0f 82 94 00 00 00 48 8d bd 20 04 00 00 e8 97 bb d7
[ 3117.971789] RSP: 0018:ffff88018eb67638 EFLAGS: 00010292
[ 3117.976333] RAX: 0000000000000000 RBX: ffff88018f0a6300 RCX: 0000000000000000
[ 3117.980926] RDX: 0000000000000000 RSI: 0000000000000297 RDI: 0000000000000297
[ 3117.985497] RBP: ffff88018ebe9980 R08: ffffed003e743ebb R09: ffffed003e743ebb
[ 3117.990098] R10: 0000000000000001 R11: ffffed003e743eba R12: 0000000000000019
[ 3117.994761] R13: 0000000000000014 R14: 0000000000000320 R15: ffff88018ebe99e0
[ 3117.999392] FS: 00007f5694636840(0000) GS:ffff8801f3b00000(0000) knlGS:0000000000000000
[ 3118.004096] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3118.008816] CR2: 00007fe89bb1a000 CR3: 0000000191c22000 CR4: 00000000000006e0
- Location
https://elixir.bootlin.com/linux/v4.18-rc3/source/fs/f2fs/segment.c#L775
if (test_and_clear_bit(segno, dirty_i->dirty_segmap[t]))
dirty_i->nr_dirty[t]--;
Here dirty_i->dirty_segmap[t] can be NULL which leads to crash in test_and_clear_bit()
Reported-by Wen Xu <wen.xu@gatech.edu>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
[bwh: Backported to 4.9: The function is called sanity_check_ckpt()]
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/f2fs/checkpoint.c | 8 ++++----
fs/f2fs/super.c | 12 ++++++++++++
2 files changed, 16 insertions(+), 4 deletions(-)
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -794,15 +794,15 @@ int get_valid_checkpoint(struct f2fs_sb_
cp_block = (struct f2fs_checkpoint *)page_address(cur_page);
memcpy(sbi->ckpt, cp_block, blk_size);
- /* Sanity checking of checkpoint */
- if (sanity_check_ckpt(sbi))
- goto free_fail_no_cp;
-
if (cur_page == cp1)
sbi->cur_cp_pack = 1;
else
sbi->cur_cp_pack = 2;
+ /* Sanity checking of checkpoint */
+ if (sanity_check_ckpt(sbi))
+ goto free_fail_no_cp;
+
if (cp_blks <= 1)
goto done;
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1487,6 +1487,7 @@ int sanity_check_ckpt(struct f2fs_sb_inf
unsigned int sit_bitmap_size, nat_bitmap_size;
unsigned int log_blocks_per_seg;
unsigned int segment_count_main;
+ unsigned int cp_pack_start_sum, cp_payload;
block_t user_block_count;
int i;
@@ -1547,6 +1548,17 @@ int sanity_check_ckpt(struct f2fs_sb_inf
return 1;
}
+ cp_pack_start_sum = __start_sum_addr(sbi);
+ cp_payload = __cp_payload(sbi);
+ if (cp_pack_start_sum < cp_payload + 1 ||
+ cp_pack_start_sum > blocks_per_seg - 1 -
+ NR_CURSEG_TYPE) {
+ f2fs_msg(sbi->sb, KERN_ERR,
+ "Wrong cp_pack_start_sum: %u",
+ cp_pack_start_sum);
+ return 1;
+ }
+
if (unlikely(f2fs_cp_error(sbi))) {
f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck");
return 1;
next prev parent reply other threads:[~2018-12-06 14:48 UTC|newest]
Thread overview: 115+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-06 14:37 [PATCH 4.9 000/101] 4.9.144-stable review Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 001/101] Kbuild: suppress packed-not-aligned warning for default setting only Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 002/101] disable stringop truncation warnings for now Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 003/101] test_hexdump: use memcpy instead of strncpy Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 004/101] kobject: Replace strncpy with memcpy Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 005/101] unifdef: use memcpy instead of strncpy Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 006/101] kernfs: Replace strncpy with memcpy Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 007/101] ip_tunnel: Fix name string concatenate in __ip_tunnel_create() Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 008/101] drm: gma500: fix logic error Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 009/101] scsi: bfa: convert to strlcpy/strlcat Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 010/101] staging: rts5208: fix gcc-8 logic error warning Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 011/101] kdb: use memmove instead of overlapping memcpy Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 012/101] x86/power/64: Use char arrays for asm function names Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 013/101] iser: set sector for ambiguous mr status errors Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 014/101] uprobes: Fix handle_swbp() vs. unregister() + register() race once more Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 015/101] MIPS: ralink: Fix mt7620 nd_sd pinmux Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 016/101] mips: fix mips_get_syscall_arg o32 check Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 017/101] IB/mlx5: Avoid load failure due to unknown link width Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 018/101] drm/ast: Fix incorrect free on ioregs Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 019/101] drm: set is_master to 0 upon drm_new_set_master() failure Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 020/101] scsi: scsi_devinfo: cleanly zero-pad devinfo strings Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 021/101] ALSA: trident: Suppress gcc string warning Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 022/101] scsi: csiostor: Avoid content leaks and casts Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 023/101] kgdboc: Fix restrict error Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 024/101] kgdboc: Fix warning with module build Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 025/101] binder: fix proc->files use-after-free Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 026/101] svm: Add mutex_lock to protect apic_access_page_done on AMD systems Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 027/101] drm/mediatek: fix OF sibling-node lookup Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 028/101] Input: xpad - quirk all PDP Xbox One gamepads Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 029/101] Input: matrix_keypad - check for errors from of_get_named_gpio() Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 030/101] Input: elan_i2c - add ELAN0620 to the ACPI table Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 031/101] Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15ARR Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 032/101] Input: elan_i2c - add support for ELAN0621 touchpad Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 033/101] btrfs: Always try all copies when reading extent buffers Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 034/101] Btrfs: fix use-after-free when dumping free space Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 035/101] ARC: change defconfig defaults to ARCv2 Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 036/101] arc: [devboards] Add support of NFSv3 ACL Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 037/101] udf: Allow mounting volumes with incorrect identification strings Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 038/101] reset: make optional functions really optional Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 039/101] reset: core: fix reset_control_put Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 040/101] reset: fix optional reset_control_get stubs to return NULL Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 041/101] reset: add exported __reset_control_get, return NULL if optional Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 042/101] reset: make device_reset_optional() really optional Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 043/101] reset: remove remaining WARN_ON() in <linux/reset.h> Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 044/101] mm: cleancache: fix corruption on missed inode invalidation Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 045/101] usb: gadget: dummy: fix nonsensical comparisons Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 046/101] net: qed: use correct strncpy() size Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 047/101] tipc: use destination length for copy string Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 048/101] libceph: drop len argument of *verify_authorizer_reply() Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 049/101] libceph: no need to drop con->mutex for ->get_authorizer() Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 050/101] libceph: store ceph_auth_handshake pointer in ceph_connection Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 051/101] libceph: factor out __prepare_write_connect() Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 052/101] libceph: factor out __ceph_x_decrypt() Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 053/101] libceph: factor out encrypt_authorizer() Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 054/101] libceph: add authorizer challenge Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 055/101] libceph: implement CEPHX_V2 calculation mode Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 056/101] libceph: weaken sizeof check in ceph_x_verify_authorizer_reply() Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 057/101] libceph: check authorizer reply/challenge length before reading Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 058/101] bpf/verifier: Add spi variable to check_stack_write() Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 059/101] bpf/verifier: Pass instruction index to check_mem_access() and check_xadd() Greg Kroah-Hartman
2018-12-06 14:38 ` [PATCH 4.9 060/101] bpf: Prevent memory disambiguation attack Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 061/101] wil6210: missing length check in wmi_set_ie Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 062/101] mm/hugetlb.c: dont call region_abort if region_chg fails Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 063/101] hugetlbfs: fix offset overflow in hugetlbfs mmap Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 064/101] hugetlbfs: check for pgoff value overflow Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 065/101] btrfs: validate type when reading a chunk Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 066/101] btrfs: Verify that every chunk has corresponding block group at mount time Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 067/101] btrfs: Refactor check_leaf function for later expansion Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 068/101] btrfs: Check if item pointer overlaps with the item itself Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 069/101] btrfs: Add sanity check for EXTENT_DATA when reading out leaf Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 070/101] btrfs: Add checker for EXTENT_CSUM Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 071/101] btrfs: Move leaf and node validation checker to tree-checker.c Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 072/101] btrfs: struct-funcs, constify readers Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 073/101] btrfs: tree-checker: Enhance btrfs_check_node output Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 074/101] btrfs: tree-checker: Fix false panic for sanity test Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 075/101] btrfs: tree-checker: Add checker for dir item Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 076/101] btrfs: tree-checker: use %zu format string for size_t Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 077/101] btrfs: tree-check: reduce stack consumption in check_dir_item Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 078/101] btrfs: tree-checker: Verify block_group_item Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 079/101] btrfs: tree-checker: Detect invalid and empty essential trees Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 080/101] btrfs: Check that each block group has corresponding chunk at mount time Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 081/101] btrfs: tree-checker: Check level for leaves and nodes Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 082/101] btrfs: tree-checker: Fix misleading group system information Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 083/101] f2fs: fix a panic caused by NULL flush_cmd_control Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 084/101] f2fs: fix race condition in between free nid allocator/initializer Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 085/101] f2fs: detect wrong layout Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 086/101] f2fs: return error during fill_super Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 087/101] f2fs: check blkaddr more accuratly before issue a bio Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 088/101] f2fs: sanity check on sit entry Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 089/101] f2fs: enhance sanity_check_raw_super() to avoid potential overflow Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 090/101] f2fs: clean up with is_valid_blkaddr() Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 091/101] f2fs: introduce and spread verify_blkaddr Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 092/101] f2fs: fix to do sanity check with secs_per_zone Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 093/101] f2fs: fix to do sanity check with user_block_count Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 094/101] f2fs: Add sanity_check_inode() function Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 095/101] f2fs: fix to do sanity check with node footer and iblocks Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 096/101] f2fs: fix to do sanity check with block address in main area Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 097/101] f2fs: fix missing up_read Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 098/101] f2fs: fix to do sanity check with block address in main area v2 Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 099/101] f2fs: free meta pages if sanity check for ckpt is failed Greg Kroah-Hartman
2018-12-06 14:39 ` Greg Kroah-Hartman [this message]
2018-12-07 18:12 ` [PATCH 4.9 100/101] f2fs: fix to do sanity check with cp_pack_start_sum Ben Hutchings
2018-12-08 9:01 ` Greg Kroah-Hartman
2018-12-06 14:39 ` [PATCH 4.9 101/101] xfs: dont fail when converting shortform attr to long form during ATTR_REPLACE Greg Kroah-Hartman
2018-12-06 20:12 ` [PATCH 4.9 000/101] 4.9.144-stable review kernelci.org bot
2018-12-06 22:08 ` shuah
2018-12-07 9:03 ` Jon Hunter
2018-12-07 14:41 ` Greg Kroah-Hartman
2018-12-07 9:10 ` Naresh Kamboju
2018-12-07 14:41 ` Greg Kroah-Hartman
2018-12-07 15:34 ` Ben Hutchings
2018-12-07 15:51 ` Greg Kroah-Hartman
2018-12-07 17:53 ` Naresh Kamboju
2018-12-08 8:39 ` Greg Kroah-Hartman
2018-12-07 23:38 ` Guenter Roeck
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