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 4.4 033/104] f2fs: fix to do sanity check with block address in main area v2
Date: Thu, 24 Jan 2019 20:19:22 +0100 [thread overview]
Message-ID: <20190124190158.736914206@linuxfoundation.org> (raw)
In-Reply-To: <20190124190154.968308875@linuxfoundation.org>
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chao Yu <yuchao0@huawei.com>
commit 91291e9998d208370eb8156c760691b873bd7522 upstream.
This patch adds f2fs_is_valid_blkaddr() in below functions to do sanity
check with block address to avoid pentential panic:
- f2fs_grab_read_bio()
- __written_first_block()
https://bugzilla.kernel.org/show_bug.cgi?id=200465
- Reproduce
- POC (poc.c)
#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/mount.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/xattr.h>
#include <dirent.h>
#include <errno.h>
#include <error.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <linux/falloc.h>
#include <linux/loop.h>
static void activity(char *mpoint) {
char *xattr;
int err;
err = asprintf(&xattr, "%s/foo/bar/xattr", mpoint);
char buf2[113];
memset(buf2, 0, sizeof(buf2));
listxattr(xattr, buf2, sizeof(buf2));
}
int main(int argc, char *argv[]) {
activity(argv[1]);
return 0;
}
- kernel message
[ 844.718738] F2FS-fs (loop0): Mounted with checkpoint version = 2
[ 846.430929] F2FS-fs (loop0): access invalid blkaddr:1024
[ 846.431058] WARNING: CPU: 1 PID: 1249 at fs/f2fs/checkpoint.c:154 f2fs_is_valid_blkaddr+0x10f/0x160
[ 846.431059] Modules linked in: snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd input_leds joydev soundcore serio_raw i2c_piix4 mac_hid ib_iser rdma_cm iw_cm ib_cm ib_core configfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 raid10 raid456 libcrc32c async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq raid1 raid0 multipath linear qxl ttm crct10dif_pclmul crc32_pclmul drm_kms_helper ghash_clmulni_intel syscopyarea sysfillrect sysimgblt fb_sys_fops pcbc drm 8139too aesni_intel 8139cp floppy psmouse mii aes_x86_64 crypto_simd pata_acpi cryptd glue_helper
[ 846.431310] CPU: 1 PID: 1249 Comm: a.out Not tainted 4.18.0-rc3+ #1
[ 846.431312] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 846.431315] RIP: 0010:f2fs_is_valid_blkaddr+0x10f/0x160
[ 846.431316] Code: 00 eb ed 31 c0 83 fa 05 75 ae 48 83 ec 08 48 8b 3f 89 f1 48 c7 c2 fc 0b 0f 8b 48 c7 c6 8b d7 09 8b 88 44 24 07 e8 61 8b ff ff <0f> 0b 0f b6 44 24 07 48 83 c4 08 eb 81 4c 8b 47 10 8b 8f 38 04 00
[ 846.431347] RSP: 0018:ffff961c414a7bc0 EFLAGS: 00010282
[ 846.431349] RAX: 0000000000000000 RBX: ffffc5f787b8ea80 RCX: 0000000000000000
[ 846.431350] RDX: 0000000000000000 RSI: ffff89dfffd165d8 RDI: ffff89dfffd165d8
[ 846.431351] RBP: ffff961c414a7c20 R08: 0000000000000001 R09: 0000000000000248
[ 846.431353] R10: 0000000000000000 R11: 0000000000000248 R12: 0000000000000007
[ 846.431369] R13: ffff89dff5492800 R14: ffff89dfae3aa000 R15: ffff89dff4ff88d0
[ 846.431372] FS: 00007f882e2fb700(0000) GS:ffff89dfffd00000(0000) knlGS:0000000000000000
[ 846.431373] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 846.431374] CR2: 0000000001a88008 CR3: 00000001eb572000 CR4: 00000000000006e0
[ 846.431384] Call Trace:
[ 846.431426] f2fs_iget+0x6f4/0xe70
[ 846.431430] ? f2fs_find_entry+0x71/0x90
[ 846.431432] f2fs_lookup+0x1aa/0x390
[ 846.431452] __lookup_slow+0x97/0x150
[ 846.431459] lookup_slow+0x35/0x50
[ 846.431462] walk_component+0x1c6/0x470
[ 846.431479] ? memcg_kmem_charge_memcg+0x70/0x90
[ 846.431488] ? page_add_file_rmap+0x13/0x200
[ 846.431491] path_lookupat+0x76/0x230
[ 846.431501] ? __alloc_pages_nodemask+0xfc/0x280
[ 846.431504] filename_lookup+0xb8/0x1a0
[ 846.431534] ? _cond_resched+0x16/0x40
[ 846.431541] ? kmem_cache_alloc+0x160/0x1d0
[ 846.431549] ? path_listxattr+0x41/0xa0
[ 846.431551] path_listxattr+0x41/0xa0
[ 846.431570] do_syscall_64+0x55/0x100
[ 846.431583] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 846.431607] RIP: 0033:0x7f882de1c0d7
[ 846.431607] Code: f0 ff ff 73 01 c3 48 8b 0d be dd 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 c2 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 91 dd 2b 00 f7 d8 64 89 01 48
[ 846.431639] RSP: 002b:00007ffe8e66c238 EFLAGS: 00000202 ORIG_RAX: 00000000000000c2
[ 846.431641] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f882de1c0d7
[ 846.431642] RDX: 0000000000000071 RSI: 00007ffe8e66c280 RDI: 0000000001a880c0
[ 846.431643] RBP: 00007ffe8e66c300 R08: 0000000001a88010 R09: 0000000000000000
[ 846.431645] R10: 00000000000001ab R11: 0000000000000202 R12: 0000000000400550
[ 846.431646] R13: 00007ffe8e66c400 R14: 0000000000000000 R15: 0000000000000000
[ 846.431648] ---[ end trace abca54df39d14f5c ]---
[ 846.431651] F2FS-fs (loop0): invalid blkaddr: 1024, type: 5, run fsck to fix.
[ 846.431762] WARNING: CPU: 1 PID: 1249 at fs/f2fs/f2fs.h:2697 f2fs_iget+0xd17/0xe70
[ 846.431763] Modules linked in: snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd input_leds joydev soundcore serio_raw i2c_piix4 mac_hid ib_iser rdma_cm iw_cm ib_cm ib_core configfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 raid10 raid456 libcrc32c async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq raid1 raid0 multipath linear qxl ttm crct10dif_pclmul crc32_pclmul drm_kms_helper ghash_clmulni_intel syscopyarea sysfillrect sysimgblt fb_sys_fops pcbc drm 8139too aesni_intel 8139cp floppy psmouse mii aes_x86_64 crypto_simd pata_acpi cryptd glue_helper
[ 846.431797] CPU: 1 PID: 1249 Comm: a.out Tainted: G W 4.18.0-rc3+ #1
[ 846.431798] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 846.431800] RIP: 0010:f2fs_iget+0xd17/0xe70
[ 846.431801] Code: ff ff 48 63 d8 e9 e1 f6 ff ff 48 8b 45 c8 41 b8 05 00 00 00 48 c7 c2 d8 e8 0e 8b 48 c7 c6 1d b0 0a 8b 48 8b 38 e8 f9 b4 00 00 <0f> 0b 48 8b 45 c8 f0 80 48 48 04 e9 d8 f9 ff ff 0f 0b 48 8b 43 18
[ 846.431832] RSP: 0018:ffff961c414a7bd0 EFLAGS: 00010282
[ 846.431834] RAX: 0000000000000000 RBX: ffffc5f787b8ea80 RCX: 0000000000000006
[ 846.431835] RDX: 0000000000000000 RSI: 0000000000000096 RDI: ffff89dfffd165d0
[ 846.431836] RBP: ffff961c414a7c20 R08: 0000000000000000 R09: 0000000000000273
[ 846.431837] R10: 0000000000000000 R11: ffff89dfad50ca60 R12: 0000000000000007
[ 846.431838] R13: ffff89dff5492800 R14: ffff89dfae3aa000 R15: ffff89dff4ff88d0
[ 846.431840] FS: 00007f882e2fb700(0000) GS:ffff89dfffd00000(0000) knlGS:0000000000000000
[ 846.431841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 846.431842] CR2: 0000000001a88008 CR3: 00000001eb572000 CR4: 00000000000006e0
[ 846.431846] Call Trace:
[ 846.431850] ? f2fs_find_entry+0x71/0x90
[ 846.431853] f2fs_lookup+0x1aa/0x390
[ 846.431856] __lookup_slow+0x97/0x150
[ 846.431858] lookup_slow+0x35/0x50
[ 846.431874] walk_component+0x1c6/0x470
[ 846.431878] ? memcg_kmem_charge_memcg+0x70/0x90
[ 846.431880] ? page_add_file_rmap+0x13/0x200
[ 846.431882] path_lookupat+0x76/0x230
[ 846.431884] ? __alloc_pages_nodemask+0xfc/0x280
[ 846.431886] filename_lookup+0xb8/0x1a0
[ 846.431890] ? _cond_resched+0x16/0x40
[ 846.431891] ? kmem_cache_alloc+0x160/0x1d0
[ 846.431894] ? path_listxattr+0x41/0xa0
[ 846.431896] path_listxattr+0x41/0xa0
[ 846.431898] do_syscall_64+0x55/0x100
[ 846.431901] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 846.431902] RIP: 0033:0x7f882de1c0d7
[ 846.431903] Code: f0 ff ff 73 01 c3 48 8b 0d be dd 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 c2 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 91 dd 2b 00 f7 d8 64 89 01 48
[ 846.431934] RSP: 002b:00007ffe8e66c238 EFLAGS: 00000202 ORIG_RAX: 00000000000000c2
[ 846.431936] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f882de1c0d7
[ 846.431937] RDX: 0000000000000071 RSI: 00007ffe8e66c280 RDI: 0000000001a880c0
[ 846.431939] RBP: 00007ffe8e66c300 R08: 0000000001a88010 R09: 0000000000000000
[ 846.431940] R10: 00000000000001ab R11: 0000000000000202 R12: 0000000000400550
[ 846.431941] R13: 00007ffe8e66c400 R14: 0000000000000000 R15: 0000000000000000
[ 846.431943] ---[ end trace abca54df39d14f5d ]---
[ 846.432033] F2FS-fs (loop0): access invalid blkaddr:1024
[ 846.432051] WARNING: CPU: 1 PID: 1249 at fs/f2fs/checkpoint.c:154 f2fs_is_valid_blkaddr+0x10f/0x160
[ 846.432051] Modules linked in: snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd input_leds joydev soundcore serio_raw i2c_piix4 mac_hid ib_iser rdma_cm iw_cm ib_cm ib_core configfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 raid10 raid456 libcrc32c async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq raid1 raid0 multipath linear qxl ttm crct10dif_pclmul crc32_pclmul drm_kms_helper ghash_clmulni_intel syscopyarea sysfillrect sysimgblt fb_sys_fops pcbc drm 8139too aesni_intel 8139cp floppy psmouse mii aes_x86_64 crypto_simd pata_acpi cryptd glue_helper
[ 846.432085] CPU: 1 PID: 1249 Comm: a.out Tainted: G W 4.18.0-rc3+ #1
[ 846.432086] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 846.432089] RIP: 0010:f2fs_is_valid_blkaddr+0x10f/0x160
[ 846.432089] Code: 00 eb ed 31 c0 83 fa 05 75 ae 48 83 ec 08 48 8b 3f 89 f1 48 c7 c2 fc 0b 0f 8b 48 c7 c6 8b d7 09 8b 88 44 24 07 e8 61 8b ff ff <0f> 0b 0f b6 44 24 07 48 83 c4 08 eb 81 4c 8b 47 10 8b 8f 38 04 00
[ 846.432120] RSP: 0018:ffff961c414a7900 EFLAGS: 00010286
[ 846.432122] RAX: 0000000000000000 RBX: 0000000000000400 RCX: 0000000000000006
[ 846.432123] RDX: 0000000000000000 RSI: 0000000000000096 RDI: ffff89dfffd165d0
[ 846.432124] RBP: ffff89dff5492800 R08: 0000000000000001 R09: 000000000000029d
[ 846.432125] R10: ffff961c414a7820 R11: 000000000000029d R12: 0000000000000400
[ 846.432126] R13: 0000000000000000 R14: ffff89dff4ff88d0 R15: 0000000000000000
[ 846.432128] FS: 00007f882e2fb700(0000) GS:ffff89dfffd00000(0000) knlGS:0000000000000000
[ 846.432130] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 846.432131] CR2: 0000000001a88008 CR3: 00000001eb572000 CR4: 00000000000006e0
[ 846.432135] Call Trace:
[ 846.432151] f2fs_wait_on_block_writeback+0x20/0x110
[ 846.432158] f2fs_grab_read_bio+0xbc/0xe0
[ 846.432161] f2fs_submit_page_read+0x21/0x280
[ 846.432163] f2fs_get_read_data_page+0xb7/0x3c0
[ 846.432165] f2fs_get_lock_data_page+0x29/0x1e0
[ 846.432167] f2fs_get_new_data_page+0x148/0x550
[ 846.432170] f2fs_add_regular_entry+0x1d2/0x550
[ 846.432178] ? __switch_to+0x12f/0x460
[ 846.432181] f2fs_add_dentry+0x6a/0xd0
[ 846.432184] f2fs_do_add_link+0xe9/0x140
[ 846.432186] __recover_dot_dentries+0x260/0x280
[ 846.432189] f2fs_lookup+0x343/0x390
[ 846.432193] __lookup_slow+0x97/0x150
[ 846.432195] lookup_slow+0x35/0x50
[ 846.432208] walk_component+0x1c6/0x470
[ 846.432212] ? memcg_kmem_charge_memcg+0x70/0x90
[ 846.432215] ? page_add_file_rmap+0x13/0x200
[ 846.432217] path_lookupat+0x76/0x230
[ 846.432219] ? __alloc_pages_nodemask+0xfc/0x280
[ 846.432221] filename_lookup+0xb8/0x1a0
[ 846.432224] ? _cond_resched+0x16/0x40
[ 846.432226] ? kmem_cache_alloc+0x160/0x1d0
[ 846.432228] ? path_listxattr+0x41/0xa0
[ 846.432230] path_listxattr+0x41/0xa0
[ 846.432233] do_syscall_64+0x55/0x100
[ 846.432235] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 846.432237] RIP: 0033:0x7f882de1c0d7
[ 846.432237] Code: f0 ff ff 73 01 c3 48 8b 0d be dd 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 c2 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 91 dd 2b 00 f7 d8 64 89 01 48
[ 846.432269] RSP: 002b:00007ffe8e66c238 EFLAGS: 00000202 ORIG_RAX: 00000000000000c2
[ 846.432271] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f882de1c0d7
[ 846.432272] RDX: 0000000000000071 RSI: 00007ffe8e66c280 RDI: 0000000001a880c0
[ 846.432273] RBP: 00007ffe8e66c300 R08: 0000000001a88010 R09: 0000000000000000
[ 846.432274] R10: 00000000000001ab R11: 0000000000000202 R12: 0000000000400550
[ 846.432275] R13: 00007ffe8e66c400 R14: 0000000000000000 R15: 0000000000000000
[ 846.432277] ---[ end trace abca54df39d14f5e ]---
[ 846.432279] F2FS-fs (loop0): invalid blkaddr: 1024, type: 5, run fsck to fix.
[ 846.432376] WARNING: CPU: 1 PID: 1249 at fs/f2fs/f2fs.h:2697 f2fs_wait_on_block_writeback+0xb1/0x110
[ 846.432376] Modules linked in: snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd input_leds joydev soundcore serio_raw i2c_piix4 mac_hid ib_iser rdma_cm iw_cm ib_cm ib_core configfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 raid10 raid456 libcrc32c async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq raid1 raid0 multipath linear qxl ttm crct10dif_pclmul crc32_pclmul drm_kms_helper ghash_clmulni_intel syscopyarea sysfillrect sysimgblt fb_sys_fops pcbc drm 8139too aesni_intel 8139cp floppy psmouse mii aes_x86_64 crypto_simd pata_acpi cryptd glue_helper
[ 846.432410] CPU: 1 PID: 1249 Comm: a.out Tainted: G W 4.18.0-rc3+ #1
[ 846.432411] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 846.432413] RIP: 0010:f2fs_wait_on_block_writeback+0xb1/0x110
[ 846.432414] Code: 66 90 f0 ff 4b 34 74 59 5b 5d c3 48 8b 7d 00 41 b8 05 00 00 00 89 d9 48 c7 c2 d8 e8 0e 8b 48 c7 c6 1d b0 0a 8b e8 df bc fd ff <0f> 0b f0 80 4d 48 04 e9 67 ff ff ff 48 8b 03 48 c1 e8 37 83 e0 07
[ 846.432445] RSP: 0018:ffff961c414a7910 EFLAGS: 00010286
[ 846.432447] RAX: 0000000000000000 RBX: 0000000000000400 RCX: 0000000000000006
[ 846.432448] RDX: 0000000000000000 RSI: 0000000000000092 RDI: ffff89dfffd165d0
[ 846.432449] RBP: ffff89dff5492800 R08: 0000000000000000 R09: 00000000000002d1
[ 846.432450] R10: ffff961c414a7820 R11: ffff89dfad50cf80 R12: 0000000000000400
[ 846.432451] R13: 0000000000000000 R14: ffff89dff4ff88d0 R15: 0000000000000000
[ 846.432453] FS: 00007f882e2fb700(0000) GS:ffff89dfffd00000(0000) knlGS:0000000000000000
[ 846.432454] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 846.432455] CR2: 0000000001a88008 CR3: 00000001eb572000 CR4: 00000000000006e0
[ 846.432459] Call Trace:
[ 846.432463] f2fs_grab_read_bio+0xbc/0xe0
[ 846.432464] f2fs_submit_page_read+0x21/0x280
[ 846.432466] f2fs_get_read_data_page+0xb7/0x3c0
[ 846.432468] f2fs_get_lock_data_page+0x29/0x1e0
[ 846.432470] f2fs_get_new_data_page+0x148/0x550
[ 846.432473] f2fs_add_regular_entry+0x1d2/0x550
[ 846.432475] ? __switch_to+0x12f/0x460
[ 846.432477] f2fs_add_dentry+0x6a/0xd0
[ 846.432480] f2fs_do_add_link+0xe9/0x140
[ 846.432483] __recover_dot_dentries+0x260/0x280
[ 846.432485] f2fs_lookup+0x343/0x390
[ 846.432488] __lookup_slow+0x97/0x150
[ 846.432490] lookup_slow+0x35/0x50
[ 846.432505] walk_component+0x1c6/0x470
[ 846.432509] ? memcg_kmem_charge_memcg+0x70/0x90
[ 846.432511] ? page_add_file_rmap+0x13/0x200
[ 846.432513] path_lookupat+0x76/0x230
[ 846.432515] ? __alloc_pages_nodemask+0xfc/0x280
[ 846.432517] filename_lookup+0xb8/0x1a0
[ 846.432520] ? _cond_resched+0x16/0x40
[ 846.432522] ? kmem_cache_alloc+0x160/0x1d0
[ 846.432525] ? path_listxattr+0x41/0xa0
[ 846.432526] path_listxattr+0x41/0xa0
[ 846.432529] do_syscall_64+0x55/0x100
[ 846.432531] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 846.432533] RIP: 0033:0x7f882de1c0d7
[ 846.432533] Code: f0 ff ff 73 01 c3 48 8b 0d be dd 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 c2 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 91 dd 2b 00 f7 d8 64 89 01 48
[ 846.432565] RSP: 002b:00007ffe8e66c238 EFLAGS: 00000202 ORIG_RAX: 00000000000000c2
[ 846.432567] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f882de1c0d7
[ 846.432568] RDX: 0000000000000071 RSI: 00007ffe8e66c280 RDI: 0000000001a880c0
[ 846.432569] RBP: 00007ffe8e66c300 R08: 0000000001a88010 R09: 0000000000000000
[ 846.432570] R10: 00000000000001ab R11: 0000000000000202 R12: 0000000000400550
[ 846.432571] R13: 00007ffe8e66c400 R14: 0000000000000000 R15: 0000000000000000
[ 846.432573] ---[ end trace abca54df39d14f5f ]---
[ 846.434280] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[ 846.434424] PGD 80000001ebd3a067 P4D 80000001ebd3a067 PUD 1eb1ae067 PMD 0
[ 846.434551] Oops: 0000 [#1] SMP PTI
[ 846.434697] CPU: 0 PID: 44 Comm: kworker/u5:0 Tainted: G W 4.18.0-rc3+ #1
[ 846.434805] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 846.435000] Workqueue: fscrypt_read_queue decrypt_work
[ 846.435174] RIP: 0010:fscrypt_do_page_crypto+0x6e/0x2d0
[ 846.435351] Code: 00 65 48 8b 04 25 28 00 00 00 48 89 84 24 88 00 00 00 31 c0 e8 43 c2 e0 ff 49 8b 86 48 02 00 00 85 ed c7 44 24 70 00 00 00 00 <48> 8b 58 08 0f 84 14 02 00 00 48 8b 78 10 48 8b 0c 24 48 c7 84 24
[ 846.435696] RSP: 0018:ffff961c40f9bd60 EFLAGS: 00010206
[ 846.435870] RAX: 0000000000000000 RBX: ffffc5f787719b80 RCX: ffffc5f787719b80
[ 846.436051] RDX: ffffffff8b9f4b88 RSI: ffffffff8b0ae622 RDI: ffff961c40f9bdb8
[ 846.436261] RBP: 0000000000001000 R08: ffffc5f787719b80 R09: 0000000000001000
[ 846.436433] R10: 0000000000000018 R11: fefefefefefefeff R12: ffffc5f787719b80
[ 846.436562] R13: ffffc5f787719b80 R14: ffff89dff4ff88d0 R15: 0ffff89dfaddee60
[ 846.436658] FS: 0000000000000000(0000) GS:ffff89dfffc00000(0000) knlGS:0000000000000000
[ 846.436758] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 846.436898] CR2: 0000000000000008 CR3: 00000001eddd0000 CR4: 00000000000006f0
[ 846.437001] Call Trace:
[ 846.437181] ? check_preempt_wakeup+0xf2/0x230
[ 846.437276] ? check_preempt_curr+0x7c/0x90
[ 846.437370] fscrypt_decrypt_page+0x48/0x4d
[ 846.437466] __fscrypt_decrypt_bio+0x5b/0x90
[ 846.437542] decrypt_work+0x12/0x20
[ 846.437651] process_one_work+0x15e/0x3d0
[ 846.437740] worker_thread+0x4c/0x440
[ 846.437848] kthread+0xf8/0x130
[ 846.437938] ? rescuer_thread+0x350/0x350
[ 846.438022] ? kthread_associate_blkcg+0x90/0x90
[ 846.438117] ret_from_fork+0x35/0x40
[ 846.438201] Modules linked in: snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd input_leds joydev soundcore serio_raw i2c_piix4 mac_hid ib_iser rdma_cm iw_cm ib_cm ib_core configfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 raid10 raid456 libcrc32c async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq raid1 raid0 multipath linear qxl ttm crct10dif_pclmul crc32_pclmul drm_kms_helper ghash_clmulni_intel syscopyarea sysfillrect sysimgblt fb_sys_fops pcbc drm 8139too aesni_intel 8139cp floppy psmouse mii aes_x86_64 crypto_simd pata_acpi cryptd glue_helper
[ 846.438653] CR2: 0000000000000008
[ 846.438713] ---[ end trace abca54df39d14f60 ]---
[ 846.438796] RIP: 0010:fscrypt_do_page_crypto+0x6e/0x2d0
[ 846.438844] Code: 00 65 48 8b 04 25 28 00 00 00 48 89 84 24 88 00 00 00 31 c0 e8 43 c2 e0 ff 49 8b 86 48 02 00 00 85 ed c7 44 24 70 00 00 00 00 <48> 8b 58 08 0f 84 14 02 00 00 48 8b 78 10 48 8b 0c 24 48 c7 84 24
[ 846.439084] RSP: 0018:ffff961c40f9bd60 EFLAGS: 00010206
[ 846.439176] RAX: 0000000000000000 RBX: ffffc5f787719b80 RCX: ffffc5f787719b80
[ 846.440927] RDX: ffffffff8b9f4b88 RSI: ffffffff8b0ae622 RDI: ffff961c40f9bdb8
[ 846.442083] RBP: 0000000000001000 R08: ffffc5f787719b80 R09: 0000000000001000
[ 846.443284] R10: 0000000000000018 R11: fefefefefefefeff R12: ffffc5f787719b80
[ 846.444448] R13: ffffc5f787719b80 R14: ffff89dff4ff88d0 R15: 0ffff89dfaddee60
[ 846.445558] FS: 0000000000000000(0000) GS:ffff89dfffc00000(0000) knlGS:0000000000000000
[ 846.446687] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 846.447796] CR2: 0000000000000008 CR3: 00000001eddd0000 CR4: 00000000000006f0
- Location
https://elixir.bootlin.com/linux/v4.18-rc4/source/fs/crypto/crypto.c#L149
struct crypto_skcipher *tfm = ci->ci_ctfm;
Here ci can be NULL
Note that this issue maybe require CONFIG_F2FS_FS_ENCRYPTION=y to reproduce.
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 4.4: adjust context]
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/f2fs/data.c | 3 +++
fs/f2fs/inode.c | 18 +++++++++++++-----
2 files changed, 16 insertions(+), 5 deletions(-)
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -884,6 +884,9 @@ struct bio *f2fs_grab_bio(struct inode *
struct block_device *bdev = sbi->sb->s_bdev;
struct bio *bio;
+ if (!f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC))
+ return ERR_PTR(-EFAULT);
+
if (f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode)) {
ctx = f2fs_get_crypto_ctx(inode);
if (IS_ERR(ctx))
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -50,14 +50,16 @@ static void __get_inode_rdev(struct inod
}
}
-static bool __written_first_block(struct f2fs_sb_info *sbi,
+static int __written_first_block(struct f2fs_sb_info *sbi,
struct f2fs_inode *ri)
{
block_t addr = le32_to_cpu(ri->i_addr[0]);
- if (is_valid_data_blkaddr(sbi, addr))
- return true;
- return false;
+ if (!__is_valid_data_blkaddr(addr))
+ return 1;
+ if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC))
+ return -EFAULT;
+ return 0;
}
static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
@@ -145,6 +147,7 @@ static int do_read_inode(struct inode *i
struct f2fs_inode_info *fi = F2FS_I(inode);
struct page *node_page;
struct f2fs_inode *ri;
+ int err;
/* Check if ino is within scope */
if (check_nid_range(sbi, inode->i_ino)) {
@@ -199,7 +202,12 @@ static int do_read_inode(struct inode *i
/* get rdev by using inline_info */
__get_inode_rdev(inode, ri);
- if (__written_first_block(sbi, ri))
+ err = __written_first_block(sbi, ri);
+ if (err < 0) {
+ f2fs_put_page(node_page, 1);
+ return err;
+ }
+ if (!err)
set_inode_flag(F2FS_I(inode), FI_FIRST_BLOCK_WRITTEN);
f2fs_put_page(node_page, 1);
next prev parent reply other threads:[~2019-01-24 20:14 UTC|newest]
Thread overview: 112+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-24 19:18 [PATCH 4.4 000/104] 4.4.172-stable review Greg Kroah-Hartman
2019-01-24 19:18 ` [PATCH 4.4 001/104] tty/ldsem: Wake up readers after timed out down_write() Greg Kroah-Hartman
2019-01-24 19:18 ` [PATCH 4.4 002/104] can: gw: ensure DLC boundaries after CAN frame modification Greg Kroah-Hartman
2019-01-24 19:18 ` [PATCH 4.4 003/104] f2fs: clean up argument of recover_data Greg Kroah-Hartman
2019-01-24 19:18 ` [PATCH 4.4 004/104] f2fs: cover more area with nat_tree_lock Greg Kroah-Hartman
2019-01-24 19:18 ` [PATCH 4.4 005/104] f2fs: move sanity checking of cp into get_valid_checkpoint Greg Kroah-Hartman
2019-01-24 19:18 ` [PATCH 4.4 006/104] f2fs: fix to convert inline directory correctly Greg Kroah-Hartman
2019-01-24 19:18 ` [PATCH 4.4 007/104] f2fs: give -EINVAL for norecovery and rw mount Greg Kroah-Hartman
2019-01-24 19:18 ` [PATCH 4.4 008/104] f2fs: remove an obsolete variable Greg Kroah-Hartman
2019-01-24 19:18 ` [PATCH 4.4 009/104] f2fs: factor out fsync inode entry operations Greg Kroah-Hartman
2019-01-24 19:18 ` [PATCH 4.4 010/104] f2fs: fix inode cache leak Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 011/104] f2fs: fix to avoid reading out encrypted data in page cache Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 012/104] f2fs: not allow to write illegal blkaddr Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 013/104] f2fs: avoid unneeded loop in build_sit_entries Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 014/104] f2fs: use crc and cp version to determine roll-forward recovery Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 015/104] f2fs: introduce get_checkpoint_version for cleanup Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 016/104] f2fs: put directory inodes before checkpoint in roll-forward recovery Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 017/104] f2fs: fix to determine start_cp_addr by sbi->cur_cp_pack Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 018/104] f2fs: detect wrong layout Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 019/104] f2fs: free meta pages if sanity check for ckpt is failed Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 020/104] f2fs: fix race condition in between free nid allocator/initializer Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 021/104] f2fs: return error during fill_super Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 022/104] f2fs: check blkaddr more accuratly before issue a bio Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 023/104] f2fs: sanity check on sit entry Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 024/104] f2fs: enhance sanity_check_raw_super() to avoid potential overflow Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 025/104] f2fs: clean up with is_valid_blkaddr() Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 026/104] f2fs: introduce and spread verify_blkaddr Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 027/104] f2fs: fix to do sanity check with secs_per_zone Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 028/104] f2fs: fix to do sanity check with user_block_count Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 029/104] f2fs: Add sanity_check_inode() function Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 030/104] f2fs: fix to do sanity check with node footer and iblocks Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 031/104] f2fs: fix to do sanity check with reserved blkaddr of inline inode Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 032/104] f2fs: fix to do sanity check with block address in main area Greg Kroah-Hartman
2019-01-24 19:19 ` Greg Kroah-Hartman [this message]
2019-01-24 19:19 ` [PATCH 4.4 034/104] f2fs: fix to do sanity check with cp_pack_start_sum Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 035/104] f2fs: fix invalid memory access Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 036/104] f2fs: fix missing up_read Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 037/104] f2fs: fix validation of the block count in sanity_check_raw_super Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 038/104] media: em28xx: Fix misplaced reset of dev->v4l::field_count Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 039/104] proc: Remove empty line in /proc/self/status Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 040/104] arm64/kvm: consistently handle host HCR_EL2 flags Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 041/104] arm64: Dont trap host pointer auth use to EL2 Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 042/104] ipv6: fix kernel-infoleak in ipv6_local_error() Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 043/104] net: bridge: fix a bug on using a neighbour cache entry without checking its state Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 044/104] packet: Do not leak dev refcounts on error exit Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 045/104] ip: on queued skb use skb_header_pointer instead of pskb_may_pull Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 046/104] crypto: authencesn - Avoid twice completion call in decrypt path Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 047/104] crypto: authenc - fix parsing key with misaligned rta_len Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 048/104] btrfs: wait on ordered extents on abort cleanup Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 049/104] Yama: Check for pid death before checking ancestry Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 050/104] scsi: sd: Fix cache_type_store() Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 051/104] mips: fix n32 compat_ipc_parse_version Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 052/104] mfd: tps6586x: Handle interrupts on suspend Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 053/104] Disable MSI also when pcie-octeon.pcie_disable on Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 054/104] omap2fb: Fix stack memory disclosure Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 055/104] media: vivid: fix error handling of kthread_run Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 056/104] media: vivid: set min width/height to a value > 0 Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 057/104] LSM: Check for NULL cred-security on free Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 058/104] media: vb2: vb2_mmap: move lock up Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 059/104] sunrpc: handle ENOMEM in rpcb_getport_async Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 060/104] selinux: fix GPF on invalid policy Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 061/104] sctp: allocate sctp_sockaddr_entry with kzalloc Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 062/104] tipc: fix uninit-value in tipc_nl_compat_link_reset_stats Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 063/104] tipc: fix uninit-value in tipc_nl_compat_bearer_enable Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 064/104] tipc: fix uninit-value in tipc_nl_compat_link_set Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 065/104] tipc: fix uninit-value in tipc_nl_compat_name_table_dump Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 066/104] tipc: fix uninit-value in tipc_nl_compat_doit Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 067/104] block/loop: Use global lock for ioctl() operation Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 068/104] loop: Fold __loop_release into loop_release Greg Kroah-Hartman
2019-01-28 13:31 ` Jan Kara
2019-01-30 7:30 ` Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 069/104] loop: Get rid of loop_index_mutex Greg Kroah-Hartman
2019-01-24 19:19 ` [PATCH 4.4 070/104] loop: Fix double mutex_unlock(&loop_ctl_mutex) in loop_control_ioctl() Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 071/104] drm/fb-helper: Ignore the value of fb_var_screeninfo.pixclock Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 072/104] media: vb2: be sure to unlock mutex on errors Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 073/104] r8169: Add support for new Realtek Ethernet Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 074/104] ipv6: Consider sk_bound_dev_if when binding a socket to a v4 mapped address Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 075/104] ipv6: Take rcu_read_lock in __inet6_bind for mapped addresses Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 076/104] xfs: dont fail when converting shortform attr to long form during ATTR_REPLACE Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 077/104] platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 078/104] e1000e: allow non-monotonic SYSTIM readings Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 079/104] writeback: dont decrement wb->refcnt if !wb->bdi Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 080/104] MIPS: SiByte: Enable swiotlb for SWARM, LittleSur and BigSur Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 081/104] arm64: perf: set suppress_bind_attrs flag to true Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 082/104] jffs2: Fix use of uninitialized delayed_work, lockdep breakage Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 083/104] pstore/ram: Do not treat empty buffers as valid Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 084/104] powerpc/pseries/cpuidle: Fix preempt warning Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 085/104] media: firewire: Fix app_info parameter type in avc_ca{,_app}_info Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 086/104] net: call sk_dst_reset when set SO_DONTROUTE Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 087/104] scsi: target: use consistent left-aligned ASCII INQUIRY data Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 088/104] clk: imx6q: reset exclusive gates on init Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 089/104] kconfig: fix file name and line number of warn_ignored_character() Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 090/104] kconfig: fix memory leak when EOF is encountered in quotation Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 091/104] mmc: atmel-mci: do not assume idle after atmci_request_end Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 092/104] perf intel-pt: Fix error with config term "pt=0" Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 093/104] perf svghelper: Fix unchecked usage of strncpy() Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 094/104] perf parse-events: " Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 095/104] dm kcopyd: Fix bug causing workqueue stalls Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 096/104] dm snapshot: Fix excessive memory usage and " Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 097/104] ALSA: bebob: fix model-id of unit for Apogee Ensemble Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 098/104] sysfs: Disable lockdep for driver bind/unbind files Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 099/104] scsi: megaraid: fix out-of-bound array accesses Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 100/104] ocfs2: fix panic due to unrecovered local alloc Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 101/104] mm/page-writeback.c: dont break integrity writeback on ->writepage() error Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 102/104] mm, proc: be more verbose about unstable VMA flags in /proc/<pid>/smaps Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 103/104] net: speed up skb_rbtree_purge() Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.4 104/104] ipmi:ssif: Fix handling of multi-part return messages Greg Kroah-Hartman
2019-01-25 16:32 ` [PATCH 4.4 000/104] 4.4.172-stable review Naresh Kamboju
2019-01-25 16:34 ` shuah
2019-01-25 23:16 ` Guenter Roeck
2019-01-26 12:06 ` Jon Hunter
2019-01-26 12:06 ` Jon Hunter
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