last executing test programs: 13.547999ms ago: executing program 2 (id=3): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/fuse', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/fuse', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/fuse', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/fuse', 0x800, 0x0) 11.686099ms ago: executing program 3 (id=4): io_submit(0x0, 0x0, &(0x7f0000000000)) 0s ago: executing program 1 (id=2): finit_module(0xffffffffffffffff, &(0x7f0000000000), 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.0.185' (ED25519) to the list of known hosts. syzkaller login: [ 32.410084][ T4034] cgroup: Unknown subsys name 'net' [ 32.693998][ T4034] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 32.985274][ T4034] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 33.658746][ T4051] Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP [ 33.659937][ T4051] Modules linked in: [ 33.660545][ T4051] CPU: 1 PID: 4051 Comm: syz.3.4 Not tainted 5.15.189-syzkaller #0 [ 33.661733][ T4051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 33.663327][ T4051] pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc) [ 33.664435][ T4051] pc : lookup_ioctx+0x108/0x7d0 [ 33.665209][ T4051] lr : lookup_ioctx+0xe4/0x7d0 [ 33.665944][ T4051] sp : ffff80001f577c20 [ 33.666583][ T4051] x29: ffff80001f577c20 x28: ffff0000c13f0000 x27: 0000000020000000 [ 33.667743][ T4051] x26: 1fffe0001827e000 x25: 1ffff00003eaefd6 x24: ffff0000da4078c0 [ 33.668945][ T4051] x23: dfff800000000000 x22: 00000000fffffff2 x21: 0000000000000000 [ 33.670190][ T4051] x20: ffff0000c13f0000 x19: 0000000000000000 x18: 0000000000000000 [ 33.671430][ T4051] x17: 0000000000000000 x16: ffff800008a19714 x15: 0000000000000000 [ 33.672607][ T4051] x14: 0000000000000000 x13: 1ffff0000282e06b x12: 0000000000ff0100 [ 33.673852][ T4051] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000ffffffffffff [ 33.675006][ T4051] x8 : 0000000000000000 x7 : ffff800008750ed4 x6 : 0000000000000000 [ 33.676245][ T4051] x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001 [ 33.677424][ T4051] x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000 [ 33.678584][ T4051] Call trace: [ 33.679073][ T4051] lookup_ioctx+0x108/0x7d0 [ 33.679715][ T4051] __arm64_sys_io_submit+0x110/0x40c SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 33.680515][ T4051] invoke_syscall+0x98/0x2b8 [ 33.681191][ T4051] el0_svc_common+0x138/0x258 [ 33.681824][ T4051] do_el0_svc+0x58/0x14c [ 33.682424][ T4051] el0_svc+0x78/0x1e0 [ 33.682986][ T4051] el0t_64_sync_handler+0xcc/0xe4 [ 33.683686][ T4051] el0t_64_sync+0x1a0/0x1a4 [ 33.684317][ T4051] Code: d503229f 2a1f03f6 2a1f03e0 b8400953 (2a1603e1) [ 33.685395][ T4051] ---[ end trace de45d968e3bd2220 ]--- [ 33.857347][ T4051] Kernel panic - not syncing: Oops - BTI: Fatal exception [ 33.858446][ T4051] SMP: stopping secondary CPUs [ 33.859171][ T4051] Kernel Offset: disabled [ 33.859853][ T4051] CPU features: 0x8,000003c1,7d33ffd9 [ 33.860652][ T4051] Memory Limit: none [ 34.028728][ T4051] Rebooting in 86400 seconds..