Hi!
I tried to run tests/cipher-gcm (cryptodev-linux-1.7-3-gda73010) on
Fedora fc23 using Linux kernel 4.2.3-300.fc23.x86_64. One of the
encryption failed (aes_gcm_vectors[2] with auth field set). dmesg
attached; steps to reproduce:
# cd cryptodev-linux && make
# insmod cryptodev.ko
# sysctl ioctl.cryptodev_verbosity=3
# ./tests/cipher-gcm
The same issue is apparently seen on Linux-4.2.1-300.fc23.x86_64 as
well, but I cannot reproduce this on 4.1.6-100.fc21.x86_64.
If there is a way how to fix this, I will be very thankful.
Thank you & have a nice day!
Fridolin
[ 164.153264] cryptodev: module verification failed: signature and/or required
key missing - tainting kernel
[ 164.163555] cryptodev: driver 1.7 loaded.
[ 194.817238] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff8800203b3b40
[ 194.817241] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff8800203b3cc0
[ 194.817243] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff8800203b36c0
[ 194.817244] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff8800203b3600
[ 194.817245] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff8800203b3000
[ 194.817246] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff8800203b3300
[ 194.817248] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff8800203b3840
[ 194.817249] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff8800203b39c0
[ 194.817251] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff8800203b33c0
[ 194.817252] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff8800203b3180
[ 194.817253] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff8800203b3e40
[ 194.817255] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff88003c6c7480
[ 194.817256] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff88003c6c7300
[ 194.817257] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff88003c6c7a80
[ 194.817258] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff88003c6c7f00
[ 194.817260] cryptodev: cipher-gcm[3079] (cryptodev_open:480): allocated new
item at ffff88003c6c7c00
[ 194.817261] cryptodev: cipher-gcm[3079] (cryptodev_open:485): Cryptodev
handle initialised, 16 elements in queue
[ 194.862316] cryptodev: cipher-gcm[3079] (crypto_create_session:284): got
alignmask 0
[ 194.862321] cryptodev: cipher-gcm[3079] (crypto_create_session:287):
preallocating for 32 user pages
[ 194.862774] cryptodev: cipher-gcm[3079] (crypto_create_session:284): got
alignmask 0
[ 194.862777] cryptodev: cipher-gcm[3079] (crypto_create_session:287):
preallocating for 32 user pages
[ 194.862849] cryptodev: cipher-gcm[3079] (crypto_create_session:284): got
alignmask 0
[ 194.862851] cryptodev: cipher-gcm[3079] (crypto_create_session:287):
preallocating for 32 user pages
[ 194.862889] BUG: unable to handle kernel NULL pointer dereference at
0000000000000014
[ 194.862894] IP: [<ffffffff813bffbb>] scatterwalk_pagedone.part.8+0x3b/0x60
[ 194.862900] PGD 3b753067 PUD 1b88f067 PMD 0
[ 194.862904] Oops: 0000 [#1] SMP
[ 194.862907] Modules linked in: gcm cryptodev(OE) ip6t_rpfilter ip6t_REJECT
nf_reject_ipv6 xt_conntrack ebtable_filter ebtable_broute bridge stp llc
ebtable_nat ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6
ip6table_raw ip6table_mangle ip6table_security ip6table_filter ip6_tables
iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack
iptable_raw iptable_mangle iptable_security snd_hda_codec_generic ppdev
snd_hda_intel iosf_mbi crct10dif_pclmul snd_hda_codec crc32_pclmul crc32c_intel
9pnet_virtio ghash_clmulni_intel snd_hda_core snd_hwdep 9pnet snd_seq
snd_seq_device joydev virtio_balloon snd_pcm parport_pc parport pvpanic
snd_timer snd acpi_cpufreq i2c_piix4 soundcore nfsd auth_rpcgss nfs_acl lockd
grace sunrpc virtio_net virtio_console ata_generic vmwgfx
[ 194.862957] drm_kms_helper ttm drm virtio_pci serio_raw virtio_ring
pata_acpi virtio
[ 194.862965] CPU: 0 PID: 3079 Comm: cipher-gcm Tainted: G OE
4.2.3-300.fc23.x86_64+debug #1
[ 194.862968] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.7.5-20140709_153950- 04/01/2014
[ 194.862970] task: ffff88003976aa40 ti: ffff880011dc0000 task.ti:
ffff880011dc0000
[ 194.862972] RIP: 0010:[<ffffffff813bffbb>] [<ffffffff813bffbb>]
scatterwalk_pagedone.part.8+0x3b/0x60
[ 194.862976] RSP: 0018:ffff880011dc39b8 EFLAGS: 00010246
[ 194.862977] RAX: 0000000000000000 RBX: ffff880011dc3ac8 RCX: ffff88001cc680b8
[ 194.862979] RDX: 000000000000007c RSI: ffff88001193b07c RDI: ffff88001cc680b8
[ 194.862981] RBP: ffff880011dc39c8 R08: ffff88003e3dad40 R09: ffff88003dc01b00
[ 194.862983] R10: 0000000000000f8c R11: 0000000000000001 R12: ffff88003af4fd18
[ 194.862985] R13: ffff88003976aa40 R14: 0000000000000008 R15: ffff880011dc3ac8
[ 194.862987] FS: 00007f8f83bbe700(0000) GS:ffff88003e200000(0000)
knlGS:0000000000000000
[ 194.862989] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 194.862990] CR2: 0000000000000014 CR3: 000000003c0c7000 CR4: 00000000001406f0
[ 194.862996] Stack:
[ 194.862997] ffff880011dc39c8 0000000000000008 ffff880011dc3a18
ffffffff813c014e
[ 194.863006] ffff880011dc3a48 0000000000000008 ffff880011dc3ac8
ffff880011dc3aa8
[ 194.863009] 0000000000000010 0000000000000010 ffff880011dc3b88
0000000000000000
[ 194.863013] Call Trace:
[ 194.863016] [<ffffffff813c014e>] scatterwalk_copychunks+0x8e/0x180
[ 194.863020] [<ffffffff813c3e07>] blkcipher_walk_next+0x307/0x3f0
[ 194.863020] [<ffffffff813c3976>] blkcipher_walk_done+0x106/0x290
[ 194.863020] [<ffffffff810851e3>] ctr_crypt+0xb3/0x1f0
[ 194.863020] [<ffffffff8143124e>] ? sg_init_table+0x1e/0x80
[ 194.863020] [<ffffffff813e3b72>] __ablk_encrypt+0x52/0x70
[ 194.863020] [<ffffffff813e3bb4>] ablk_encrypt+0x24/0xa0
[ 194.863020] [<ffffffffa0422314>] crypto_gcm_encrypt+0xc4/0xf0 [gcm]
[ 194.863020] [<ffffffffa04131c2>] cryptodev_cipher_encrypt+0x82/0xf0
[cryptodev]
[ 194.863020] [<ffffffffa0414c8b>] crypto_auth_run+0x36b/0xf50 [cryptodev]
[ 194.863020] [<ffffffffa041192a>] cryptodev_ioctl+0x26a/0x650 [cryptodev]
[ 194.863020] [<ffffffff813a0555>] ? inode_has_perm.isra.46+0x55/0xa0
[ 194.863020] [<ffffffff8128597e>] do_vfs_ioctl+0x2ee/0x550
[ 194.863020] [<ffffffff813a0c3b>] ? selinux_file_ioctl+0x5b/0xf0
[ 194.863020] [<ffffffff81285c59>] SyS_ioctl+0x79/0x90
[ 194.863020] [<ffffffff818727ae>] entry_SYSCALL_64_fastpath+0x12/0x76
[ 194.863020] Code: 25 00 f0 ff ff 89 47 08 8b 51 14 03 51 10 39 d0 73 02 f3
c3 55 48 89 e5 53 48 89 fb 48 89 cf 48 83 ec 08 e8 f8 0f 07 00 48 89 03 <8b> 50
14 85 d2 74 0d 8b 40 10 89 43 08 48 83 c4 08 5b 5d c3 e8
[ 194.863020] RIP [<ffffffff813bffbb>] scatterwalk_pagedone.part.8+0x3b/0x60
[ 194.863020] RSP <ffff880011dc39b8>
[ 194.863020] CR2: 0000000000000014
[ 194.863020] ---[ end trace 3bcc30be1f7ad49a ]---
[ 194.863020] BUG: sleeping function called from invalid context at
include/linux/sched.h:2739
[ 194.863020] in_atomic(): 1, irqs_disabled(): 1, pid: 3079, name: cipher-gcm
[ 194.863020] INFO: lockdep is turned off.
[ 194.863020] irq event stamp: 2416
[ 194.863020] hardirqs last enabled at (2415): [<ffffffff811e8404>]
bad_range+0x94/0x180
[ 194.863020] hardirqs last disabled at (2416): [<ffffffff81874bd3>]
error_entry_done+0x5/0x6
[ 194.863020] softirqs last enabled at (1902): [<ffffffff810b28aa>]
__do_softirq+0x39a/0x630
[ 194.863020] softirqs last disabled at (1897): [<ffffffff810b2d8a>]
irq_exit+0x11a/0x120
[ 194.863020] CPU: 0 PID: 3079 Comm: cipher-gcm Tainted: G D OE
4.2.3-300.fc23.x86_64+debug #1
[ 194.863020] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.7.5-20140709_153950- 04/01/2014
[ 194.863020] 0000000000000000 000000004a01437a ffff880011dc3618
ffffffff81868ce6
[ 194.863020] 0000000000000000 ffff88003976aa40 ffff880011dc3648
ffffffff810db151
[ 194.863020] ffff880011dc36a8 ffffffff81c71335 0000000000000ab3
0000000000000000
[ 194.863020] Call Trace:
[ 194.863020] [<ffffffff81868ce6>] dump_stack+0x4c/0x65
[ 194.863020] [<ffffffff810db151>] ___might_sleep+0x181/0x240
[ 194.863020] [<ffffffff810db25d>] __might_sleep+0x4d/0x90
[ 194.863020] [<ffffffff810bf9c3>] exit_signals+0x33/0x150
[ 194.863020] [<ffffffff810af8d9>] do_exit+0xc9/0xc30
[ 194.863020] [<ffffffff8111f441>] ? kmsg_dump+0x151/0x1a0
[ 194.863020] [<ffffffff8111f324>] ? kmsg_dump+0x34/0x1a0
[ 194.863020] [<ffffffff810205fe>] oops_end+0x9e/0xd0
[ 194.863020] [<ffffffff810711a5>] no_context+0x135/0x390
[ 194.863020] [<ffffffff81071488>] __bad_area_nosemaphore+0x88/0x200
[ 194.863020] [<ffffffff810e7b7b>] ? sched_clock_local+0x1b/0x90
[ 194.863020] [<ffffffff81071613>] bad_area_nosemaphore+0x13/0x20
[ 194.863020] [<ffffffff81071915>] __do_page_fault+0xd5/0x470
[ 194.863020] [<ffffffff81109139>] ? __lock_acquire+0xcb9/0x1d00
[ 194.863020] [<ffffffff81071da2>] trace_do_page_fault+0x72/0x3f0
[ 194.863020] [<ffffffff81003030>] ? trace_hardirqs_off_thunk+0x17/0x19
[ 194.863020] [<ffffffff8106c16e>] do_async_page_fault+0x1e/0xc0
[ 194.863020] [<ffffffff818749f8>] async_page_fault+0x28/0x30
[ 194.863020] [<ffffffff813bffbb>] ? scatterwalk_pagedone.part.8+0x3b/0x60
[ 194.863020] [<ffffffff813bffb8>] ? scatterwalk_pagedone.part.8+0x38/0x60
[ 194.863020] [<ffffffff813c014e>] scatterwalk_copychunks+0x8e/0x180
[ 194.863020] [<ffffffff813c3e07>] blkcipher_walk_next+0x307/0x3f0
[ 194.863020] [<ffffffff813c3976>] blkcipher_walk_done+0x106/0x290
[ 194.863020] [<ffffffff810851e3>] ctr_crypt+0xb3/0x1f0
[ 194.863020] [<ffffffff8143124e>] ? sg_init_table+0x1e/0x80
[ 194.863020] [<ffffffff813e3b72>] __ablk_encrypt+0x52/0x70
[ 194.863020] [<ffffffff813e3bb4>] ablk_encrypt+0x24/0xa0
[ 194.863020] [<ffffffffa0422314>] crypto_gcm_encrypt+0xc4/0xf0 [gcm]
[ 194.863020] [<ffffffffa04131c2>] cryptodev_cipher_encrypt+0x82/0xf0
[cryptodev]
[ 194.863020] [<ffffffffa0414c8b>] crypto_auth_run+0x36b/0xf50 [cryptodev]
[ 194.863020] [<ffffffffa041192a>] cryptodev_ioctl+0x26a/0x650 [cryptodev]
[ 194.863020] [<ffffffff813a0555>] ? inode_has_perm.isra.46+0x55/0xa0
[ 194.863020] [<ffffffff8128597e>] do_vfs_ioctl+0x2ee/0x550
[ 194.863020] [<ffffffff813a0c3b>] ? selinux_file_ioctl+0x5b/0xf0
[ 194.863020] [<ffffffff81285c59>] SyS_ioctl+0x79/0x90
[ 194.863020] [<ffffffff818727ae>] entry_SYSCALL_64_fastpath+0x12/0x76
[ 194.863020] note: cipher-gcm[3079] exited with preempt_count 1
[ 194.863414] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff88003c6c7c00
[ 194.863417] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff88003c6c7f00
[ 194.863419] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff88003c6c7a80
[ 194.863421] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff88003c6c7300
[ 194.863424] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff88003c6c7480
[ 194.863426] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff8800203b3e40
[ 194.863428] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff8800203b3180
[ 194.863430] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff8800203b33c0
[ 194.863432] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff8800203b39c0
[ 194.863435] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff8800203b3840
[ 194.863437] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff8800203b3300
[ 194.863439] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff8800203b3000
[ 194.863442] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff8800203b3600
[ 194.863444] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff8800203b36c0
[ 194.863446] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff8800203b3cc0
[ 194.863448] cryptodev: cipher-gcm[3079] (cryptodev_release:519): freeing
item at ffff8800203b3b40
[ 194.863459] cryptodev: cipher-gcm[3079] (crypto_destroy_session:338):
Waiting for semaphore of sid=0x7A696D08
[ 194.863462] BUG: scheduling while atomic: cipher-gcm/3079/0x00000002
[ 194.863463] INFO: lockdep is turned off.
[ 194.863464] Modules linked in: gcm cryptodev(OE) ip6t_rpfilter ip6t_REJECT
nf_reject_ipv6 xt_conntrack ebtable_filter ebtable_broute bridge stp llc
ebtable_nat ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6
ip6table_raw ip6table_mangle ip6table_security ip6table_filter ip6_tables
iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack
iptable_raw iptable_mangle iptable_security snd_hda_codec_generic ppdev
snd_hda_intel iosf_mbi crct10dif_pclmul snd_hda_codec crc32_pclmul crc32c_intel
9pnet_virtio ghash_clmulni_intel snd_hda_core snd_hwdep 9pnet snd_seq
snd_seq_device joydev virtio_balloon snd_pcm parport_pc parport pvpanic
snd_timer snd acpi_cpufreq i2c_piix4 soundcore nfsd auth_rpcgss nfs_acl lockd
grace sunrpc virtio_net virtio_console ata_generic vmwgfx
[ 194.863505] drm_kms_helper ttm drm virtio_pci serio_raw virtio_ring
pata_acpi virtio
[ 194.863512] CPU: 0 PID: 3079 Comm: cipher-gcm Tainted: G D OE
4.2.3-300.fc23.x86_64+debug #1
[ 194.863513] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.7.5-20140709_153950- 04/01/2014
[ 194.863515] 0000000000000000 000000004a01437a ffff880011dc3448
ffffffff81868ce6
[ 194.863518] 0000000000000000 ffff88003976aa40 ffff880011dc3468
ffffffff810da50d
[ 194.863521] 0000000000000002 ffff88003e3d76c0 ffff880011dc34c8
ffffffff8186babc
[ 194.863524] Call Trace:
[ 194.863527] [<ffffffff81868ce6>] dump_stack+0x4c/0x65
[ 194.863530] [<ffffffff810da50d>] __schedule_bug+0x5d/0x80
[ 194.863532] [<ffffffff8186babc>] __schedule+0x86c/0xa10
[ 194.863534] [<ffffffff810e7daa>] ? sched_clock_cpu+0x8a/0xb0
[ 194.863536] [<ffffffff8186bc9e>] schedule+0x3e/0x90
[ 194.863538] [<ffffffff8186c085>] schedule_preempt_disabled+0x15/0x20
[ 194.863540] [<ffffffff8186ea02>] mutex_lock_nested+0x182/0x3e0
[ 194.863543] [<ffffffffa04106b3>] ? cryptodev_release+0x1b3/0x3e0 [cryptodev]
[ 194.863545] [<ffffffffa04106b3>] ? cryptodev_release+0x1b3/0x3e0 [cryptodev]
[ 194.863548] [<ffffffffa04106b3>] cryptodev_release+0x1b3/0x3e0 [cryptodev]
[ 194.863551] [<ffffffff81272195>] __fput+0xf5/0x200
[ 194.863553] [<ffffffff812722ee>] ____fput+0xe/0x10
[ 194.863556] [<ffffffff810d19bd>] task_work_run+0x8d/0xc0
[ 194.863558] [<ffffffff810afb64>] do_exit+0x354/0xc30
[ 194.863560] [<ffffffff8111f441>] ? kmsg_dump+0x151/0x1a0
[ 194.863561] [<ffffffff8111f324>] ? kmsg_dump+0x34/0x1a0
[ 194.863563] [<ffffffff810205fe>] oops_end+0x9e/0xd0
[ 194.863566] [<ffffffff810711a5>] no_context+0x135/0x390
[ 194.863568] [<ffffffff81071488>] __bad_area_nosemaphore+0x88/0x200
[ 194.863570] [<ffffffff810e7b7b>] ? sched_clock_local+0x1b/0x90
[ 194.863573] [<ffffffff81071613>] bad_area_nosemaphore+0x13/0x20
[ 194.863575] [<ffffffff81071915>] __do_page_fault+0xd5/0x470
[ 194.863577] [<ffffffff81109139>] ? __lock_acquire+0xcb9/0x1d00
[ 194.863580] [<ffffffff81071da2>] trace_do_page_fault+0x72/0x3f0
[ 194.863582] [<ffffffff81003030>] ? trace_hardirqs_off_thunk+0x17/0x19
[ 194.863585] [<ffffffff8106c16e>] do_async_page_fault+0x1e/0xc0
[ 194.863587] [<ffffffff818749f8>] async_page_fault+0x28/0x30
[ 194.863589] [<ffffffff813bffbb>] ? scatterwalk_pagedone.part.8+0x3b/0x60
[ 194.863591] [<ffffffff813bffb8>] ? scatterwalk_pagedone.part.8+0x38/0x60
[ 194.863593] [<ffffffff813c014e>] scatterwalk_copychunks+0x8e/0x180
[ 194.863596] [<ffffffff813c3e07>] blkcipher_walk_next+0x307/0x3f0
[ 194.863598] [<ffffffff813c3976>] blkcipher_walk_done+0x106/0x290
[ 194.863600] [<ffffffff810851e3>] ctr_crypt+0xb3/0x1f0
[ 194.863602] [<ffffffff8143124e>] ? sg_init_table+0x1e/0x80
[ 194.863605] [<ffffffff813e3b72>] __ablk_encrypt+0x52/0x70
[ 194.863607] [<ffffffff813e3bb4>] ablk_encrypt+0x24/0xa0
[ 194.863610] [<ffffffffa0422314>] crypto_gcm_encrypt+0xc4/0xf0 [gcm]
[ 194.863613] [<ffffffffa04131c2>] cryptodev_cipher_encrypt+0x82/0xf0
[cryptodev]
[ 194.863615] [<ffffffffa0414c8b>] crypto_auth_run+0x36b/0xf50 [cryptodev]
[ 194.863618] [<ffffffffa041192a>] cryptodev_ioctl+0x26a/0x650 [cryptodev]
[ 194.863621] [<ffffffff813a0555>] ? inode_has_perm.isra.46+0x55/0xa0
[ 194.863624] [<ffffffff8128597e>] do_vfs_ioctl+0x2ee/0x550
[ 194.863626] [<ffffffff813a0c3b>] ? selinux_file_ioctl+0x5b/0xf0
[ 194.863628] [<ffffffff81285c59>] SyS_ioctl+0x79/0x90
[ 194.863631] [<ffffffff818727ae>] entry_SYSCALL_64_fastpath+0x12/0x76
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