Chao Yu 91291e9998 f2fs: fix to do sanity check with block address in main area v2 ... 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>		2018-08-13 10:48:17 -07:00
..
9p	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
adfs	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
affs	affs: fix potential memory leak when parsing option 'prefix'	2018-05-28 12:36:41 +02:00
afs	Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-06-16 16:32:04 +09:00
autofs	autofs: rename 'autofs' module back to 'autofs4'	2018-07-05 11:35:04 -07:00
befs	fix a series of Documentation/ broken file name references	2018-06-15 18:10:01 -03:00
bfs	bfs_add_entry: pass name/len as qstr pointer	2018-05-22 14:27:50 -04:00
btrfs	for-4.18-rc2-tag	2018-07-01 12:38:16 -07:00
cachefiles	Merge branch 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-06-04 10:00:01 -07:00
ceph	ceph: fix dentry leak in splice_dentry()	2018-06-26 18:42:44 +02:00
cifs	cifs: Fix invalid check in __cifs_calc_signature()	2018-06-15 19:17:40 -05:00
coda	vfs: change inode times to use struct timespec64	2018-06-05 16:57:31 -07:00
configfs	vfs: change inode times to use struct timespec64	2018-06-05 16:57:31 -07:00
cramfs	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
crypto	f2fs-for-4.18-rc1	2018-06-11 10:16:13 -07:00
debugfs	Revert "debugfs: inode: debugfs_create_dir uses mode permission from parent"	2018-06-12 20:52:16 -07:00
devpts
dlm	treewide: Use array_size() in vmalloc()	2018-06-12 16:19:22 -07:00
ecryptfs	Merge branch 'fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs into aio-base	2018-05-26 09:16:25 +02:00
efivarfs
efs
exofs	exofs: avoid VLA in structures	2018-06-15 07:55:24 +09:00
exportfs	ovl: do not try to reconnect a disconnected origin dentry	2018-04-12 12:04:49 +02:00
ext2	ext2: add warning when specifying nocheck option	2018-06-20 11:04:26 +02:00
ext4	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
f2fs	f2fs: fix to do sanity check with block address in main area v2	2018-08-13 10:48:17 -07:00
fat	Merge branch 'akpm' (patches from Andrew)	2018-06-15 08:51:42 +09:00
freevxfs	freevxfs_lookup(): use d_splice_alias()	2018-05-22 14:27:51 -04:00
fscache	proc: introduce proc_create_single{,_data}	2018-05-16 07:23:35 +02:00
fuse	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
gfs2	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
hfs	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
hfsplus	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
hostfs	vfs: change inode times to use struct timespec64	2018-06-05 16:57:31 -07:00
hpfs	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
hugetlbfs	hugetlbfs: fix bug in pgoff overflow checking	2018-04-05 21:36:21 -07:00
isofs	isofs: fix potential memory leak in mount option parsing	2018-04-16 09:47:41 +02:00
jbd2	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
jffs2	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
jfs	This fixes a too-small allocation in the xattr code.	2018-06-19 07:47:32 +09:00
kernfs	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
lockd	net: Drop pernet_operations::async	2018-03-27 13:18:09 -04:00
minix	minix_lookup: use d_splice_alias()	2018-05-22 14:27:52 -04:00
nfs	NFS client bugfixes for Linux 4.18	2018-06-22 06:21:34 +09:00
nfs_common	net: Drop pernet_operations::async	2018-03-27 13:18:09 -04:00
nfsd	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
nilfs2	do d_instantiate/unlock_new_inode combinations safely	2018-05-11 15:36:37 -04:00
nls
notify	fsnotify: add fsnotify_add_inode_mark() wrappers	2018-05-18 14:58:22 +02:00
ntfs	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
ocfs2	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
omfs	omfs_lookup(): report IO errors, use d_splice_alias()	2018-05-22 14:27:58 -04:00
openpromfs	openpromfs: switch to d_splice_alias()	2018-05-22 14:27:57 -04:00
orangefs	Solve a series of broken links for files under Documentation:	2018-06-17 05:25:18 +09:00
overlayfs	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
proc	Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-07-01 12:32:19 -07:00
pstore	pstore: Remove bogus format string definition	2018-06-14 14:57:24 +02:00
qnx4	qnx4_lookup: use d_splice_alias()	2018-05-22 14:27:52 -04:00
qnx6	qnx6_lookup: switch to d_splice_alias()	2018-05-22 14:27:54 -04:00
quota	quota: Cleanup list iteration in dqcache_shrink_scan()	2018-06-20 11:04:26 +02:00
ramfs
reiserfs	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
romfs	romfs_lookup: switch to d_splice_alias()	2018-05-22 14:27:55 -04:00
squashfs
sysfs	unfuck sysfs_mount()	2018-05-21 14:30:09 -04:00
sysv	sysv_lookup: use d_splice_alias()	2018-05-22 14:27:53 -04:00
tracefs
ubifs	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
udf	udf: Drop unused arguments of udf_delete_aext()	2018-06-20 11:05:49 +02:00
ufs	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
xfs	xfs: fix fdblocks accounting w/ RMAPBT per-AG reservation	2018-06-24 12:00:12 -07:00
aio.c	Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL	2018-06-28 10:40:47 -07:00
anon_inodes.c
attr.c	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
bad_inode.c	vfs: change inode times to use struct timespec64	2018-06-05 16:57:31 -07:00
binfmt_aout.c	exec: introduce finalize_exec() before start_thread()	2018-04-11 10:28:37 -07:00
binfmt_elf_fdpic.c	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
binfmt_elf.c	coredump: fix spam with zero VMA process	2018-06-15 07:55:24 +09:00
binfmt_em86.c
binfmt_flat.c	exec: introduce finalize_exec() before start_thread()	2018-04-11 10:28:37 -07:00
binfmt_misc.c	docs: Fix more broken references	2018-06-15 18:11:26 -03:00
binfmt_script.c
block_dev.c	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
buffer.c	fs: move page_cache_seek_hole_data to iomap.c	2018-06-01 18:37:33 -07:00
char_dev.c
compat_binfmt_elf.c
compat_ioctl.c	autofs: clean up includes	2018-06-07 17:34:40 -07:00
compat.c	ncpfs: remove compat functionality	2018-06-05 19:23:26 +02:00
coredump.c
d_path.c	split d_path() and friends into a separate file	2018-03-29 15:07:46 -04:00
dax.c	libnvdimm for 4.18	2018-06-08 17:21:52 -07:00
dcache.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-06-04 10:14:28 -07:00
dcookies.c	fs: add do_lookup_dcookie() helper; remove in-kernel call to syscall	2018-04-02 20:15:39 +02:00
direct-io.c	block: consistently use GFP_NOIO instead of __GFP_NORECLAIM	2018-05-14 08:55:18 -06:00
drop_caches.c
eventfd.c	Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL	2018-06-28 10:40:47 -07:00
eventpoll.c	Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL	2018-06-28 10:40:47 -07:00
exec.c	Merge branch 'core-rseq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-06-10 10:17:09 -07:00
fcntl.c	mm: restructure memfd code	2018-06-07 17:34:35 -07:00
fhandle.c
file_table.c
file.c	fs: add ksys_close() wrapper; remove in-kernel calls to sys_close()	2018-04-02 20:16:00 +02:00
filesystems.c	proc: introduce proc_create_single{,_data}	2018-05-16 07:23:35 +02:00
fs_pin.c
fs_struct.c
fs-writeback.c	bdi: Fix oops in wb_workfn()	2018-05-03 16:11:37 -06:00
inode.c	Fix up non-directory creation in SGID directories	2018-07-05 12:36:36 -07:00
internal.h	Revert "fs: fold open_check_o_direct into do_dentry_open"	2018-06-03 10:58:23 -07:00
ioctl.c	fs: Allow CAP_SYS_ADMIN in s_user_ns to freeze and thaw filesystems	2018-05-24 12:04:28 -05:00
iomap.c	Changes since last update:	2018-06-12 15:49:00 -07:00
Kconfig	autofs: remove left-over autofs4 stubs	2018-06-11 08:22:34 -07:00
Kconfig.binfmt	docs: Fix more broken references	2018-06-15 18:11:26 -03:00
libfs.c	fs, dax: prepare for dax-specific address_space_operations	2018-03-30 11:34:55 -07:00
locks.c	vfs/y2038: inode timestamps conversion to timespec64	2018-06-15 07:31:07 +09:00
Makefile	autofs: remove left-over autofs4 stubs	2018-06-11 08:22:34 -07:00
mbcache.c	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
mount.h
mpage.c
namei.c	Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-06-16 16:32:04 +09:00
namespace.c	fs: Allow superblock owner to access do_remount_sb()	2018-05-24 12:02:25 -05:00
no-block.c
nsfs.c
open.c	Revert "fs: fold open_check_o_direct into do_dentry_open"	2018-06-03 10:58:23 -07:00
pipe.c	Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL	2018-06-28 10:40:47 -07:00
pnode.c
pnode.h
posix_acl.c
proc_namespace.c
read_write.c	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
readdir.c	fs: add ksys_getdents64() helper; remove in-kernel calls to sys_getdents64()	2018-04-02 20:16:02 +02:00
select.c	Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL	2018-06-28 10:40:47 -07:00
seq_file.c	proc: fix smaps and meminfo alignment	2018-05-25 18:12:11 -07:00
signalfd.c	Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-06-16 16:21:50 +09:00
splice.c	Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-06-16 16:21:50 +09:00
stack.c
stat.c	fs: add do_readlinkat() helper; remove internal call to sys_readlinkat()	2018-04-02 20:15:34 +02:00
statfs.c
super.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-06-04 10:14:28 -07:00
sync.c	Changes for this release:	2018-04-04 12:44:02 -07:00
timerfd.c	Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL	2018-06-28 10:40:47 -07:00
userfaultfd.c	userfaultfd: hugetlbfs: fix userfaultfd_huge_must_wait() pte access	2018-07-03 17:32:18 -07:00
utimes.c	fs: add do_compat_futimesat() helper; remove in-kernel call to compat syscall	2018-04-02 20:15:44 +02:00
xattr.c	vfs: delete unnecessary assignment in vfs_listxattr	2018-05-29 13:22:41 -04:00