kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 9182 Comm: kworker/u4:7 Not tainted 5.4.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: pencrypt_parallel padata_parallel_worker RIP: 0010:scatterwalk_start include/crypto/scatterwalk.h:68 [inline] RIP: 0010:scatterwalk_pagedone include/crypto/scatterwalk.h:93 [inline] RIP: 0010:scatterwalk_done include/crypto/scatterwalk.h:101 [inline] RIP: 0010:gcmaes_crypt_by_sg.constprop.0+0x1035/0x1aa0 arch/x86/crypto/aesni-intel_glue.c:786 Code: e8 20 df 51 02 48 89 84 24 a8 00 00 00 48 83 c0 08 48 89 c2 48 89 84 24 90 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 30 09 00 00 48 8b 84 24 a8 00 RSP: 0018:ffffc900026f7750 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000004001 RCX: ffffffff838bb699 RDX: 0000000000000001 RSI: ffffffff838bb6eb RDI: 0000000000000007 RBP: ffffc900026f7b20 R08: ffff8880648d64c0 R09: 0000000000000005 R10: ffff8880a0ff0658 R11: 0000000000000050 R12: 0000000000004001 R13: 0000000000000000 R14: ffff8880a0ff0300 R15: 0000000000004001 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f35d93f5000 CR3: 00000000910d6000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gcmaes_encrypt arch/x86/crypto/aesni-intel_glue.c:840 [inline] generic_gcmaes_encrypt+0x10d/0x160 arch/x86/crypto/aesni-intel_glue.c:1019 crypto_aead_encrypt+0xaf/0xf0 crypto/aead.c:94 simd_aead_encrypt+0x1a6/0x2b0 crypto/simd.c:335 crypto_aead_encrypt+0xaf/0xf0 crypto/aead.c:94 pcrypt_aead_enc+0x19/0x80 crypto/pcrypt.c:76 padata_parallel_worker+0x28f/0x470 kernel/padata.c:81 process_one_work+0x9af/0x1740 kernel/workqueue.c:2264 worker_thread+0x98/0xe40 kernel/workqueue.c:2410 kthread+0x361/0x430 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 9182 at kernel/locking/mutex.c:1419 mutex_trylock+0x279/0x2f0 kernel/locking/mutex.c:1427