general protection fault, probably for non-canonical address 0xdffffc000000002b: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000158-0x000000000000015f] CPU: 0 PID: 15339 Comm: kworker/0:3 Not tainted 6.1.68-syzkaller-00044-g9219a44e003d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Workqueue: cryptd cryptd_queue_worker RIP: 0010:tipc_crypto_key_synch net/tipc/crypto.c:1395 [inline] RIP: 0010:tipc_crypto_rcv_complete+0x90f/0x18b0 net/tipc/crypto.c:1973 Code: 27 9a 96 fc 84 db 75 39 e8 8e 97 96 fc 48 8b 44 24 30 48 8d 98 58 01 00 00 48 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df <42> 0f b6 04 28 84 c0 4c 8b 7c 24 10 0f 85 79 0c 00 00 80 0b 04 eb RSP: 0000:ffffc9000171fa60 EFLAGS: 00010206 RAX: 000000000000002b RBX: 0000000000000158 RCX: ffff88810fe88000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000171fb90 R08: ffffffff84ded979 R09: ffffed10307b9304 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1102dc47c12 R13: dffffc0000000000 R14: 1ffff1102dc47c12 R15: 00000000000040fa FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f5e843b058 CR3: 000000010f9c8000 CR4: 00000000003506b0 Call Trace: tipc_aead_decrypt_done+0x1db/0x2d0 net/tipc/crypto.c:978 cryptd_aead_crypt+0x106/0x1f0 crypto/cryptd.c:740 cryptd_aead_decrypt+0xa5/0xb0 crypto/cryptd.c:764 cryptd_queue_worker+0xd4/0x140 crypto/cryptd.c:181 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446 kthread+0x26d/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:tipc_crypto_key_synch net/tipc/crypto.c:1395 [inline] RIP: 0010:tipc_crypto_rcv_complete+0x90f/0x18b0 net/tipc/crypto.c:1973 Code: 27 9a 96 fc 84 db 75 39 e8 8e 97 96 fc 48 8b 44 24 30 48 8d 98 58 01 00 00 48 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df <42> 0f b6 04 28 84 c0 4c 8b 7c 24 10 0f 85 79 0c 00 00 80 0b 04 eb RSP: 0000:ffffc9000171fa60 EFLAGS: 00010206 RAX: 000000000000002b RBX: 0000000000000158 RCX: ffff88810fe88000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000171fb90 R08: ffffffff84ded979 R09: ffffed10307b9304 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1102dc47c12 R13: dffffc0000000000 R14: 1ffff1102dc47c12 R15: 00000000000040fa FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f5e843b058 CR3: 000000010f9c8000 CR4: 00000000003506b0 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 96 xchg %eax,%esi 1: fc cld 2: 84 db test %bl,%bl 4: 75 39 jne 0x3f 6: e8 8e 97 96 fc call 0xfc969799 b: 48 8b 44 24 30 mov 0x30(%rsp),%rax 10: 48 8d 98 58 01 00 00 lea 0x158(%rax),%rbx 17: 48 89 d8 mov %rbx,%rax 1a: 48 c1 e8 03 shr $0x3,%rax 1e: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13 25: fc ff df * 28: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction 2d: 84 c0 test %al,%al 2f: 4c 8b 7c 24 10 mov 0x10(%rsp),%r15 34: 0f 85 79 0c 00 00 jne 0xcb3 3a: 80 0b 04 orb $0x4,(%rbx) 3d: eb .byte 0xeb