last executing test programs: 159.033097ms ago: executing program 3 (id=40): read(0xffffffffffffffff, &(0x7f0000000000), 0x0) 158.378558ms ago: executing program 3 (id=46): syz_open_dev$dmmidi(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$dmmidi(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$dmmidi(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$dmmidi(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$dmmidi(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$dmmidi(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$dmmidi(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$dmmidi(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$dmmidi(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$dmmidi(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$dmmidi(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$dmmidi(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$dmmidi(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$dmmidi(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$dmmidi(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$dmmidi(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$dmmidi(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$dmmidi(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$dmmidi(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$dmmidi(&(0x7f0000000500), 0x4, 0x800) 98.474399ms ago: executing program 2 (id=64): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/uinput', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/uinput', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/uinput', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/uinput', 0x800, 0x0) 74.527929ms ago: executing program 1 (id=66): syz_open_dev$radio(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$radio(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$radio(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$radio(&(0x7f0000000100), 0x0, 0x800) 74.430929ms ago: executing program 2 (id=67): quotactl$Q_GETFMT(0x0, &(0x7f0000000000), 0x0, &(0x7f0000000000)) 74.369969ms ago: executing program 0 (id=68): getpeername(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000000)) 73.989469ms ago: executing program 2 (id=70): setxattr(&(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), 0x0, 0x0) 73.927359ms ago: executing program 0 (id=71): mprotect(0x0, 0x0, 0x0) 73.867079ms ago: executing program 1 (id=72): pidfd_send_signal(0xffffffffffffffff, 0x0, &(0x7f0000000000), 0x0) 54.119609ms ago: executing program 1 (id=73): recvmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0) 53.780449ms ago: executing program 3 (id=75): landlock_create_ruleset(&(0x7f0000000000), 0x0, 0x0) 53.734219ms ago: executing program 0 (id=76): sched_setaffinity(0x0, 0x0, &(0x7f0000000000)) 53.366459ms ago: executing program 4 (id=77): munmap(0x0, 0x0) 53.193249ms ago: executing program 2 (id=78): semctl$GETALL(0x0, 0x0, 0xd, &(0x7f0000000000)) 23.64186ms ago: executing program 3 (id=79): socket$unix(0x1, 0x1, 0x0) 23.54867ms ago: executing program 4 (id=80): tkill(0x0, 0x0) 23.14233ms ago: executing program 1 (id=81): fsetxattr(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000000), 0x0, 0x0) 22.89725ms ago: executing program 2 (id=82): msgctl$IPC_INFO(0x0, 0x3, &(0x7f0000000000)) 22.63991ms ago: executing program 0 (id=83): open(&(0x7f0000000000), 0x0, 0x0) 22.43068ms ago: executing program 4 (id=84): accept(0xffffffffffffffff, 0x0, &(0x7f0000000000)) 22.32201ms ago: executing program 1 (id=85): socket$nl_crypto(0x10, 0x3, 0x15) 22.14923ms ago: executing program 0 (id=86): lsetxattr(&(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), 0x0, 0x0) 1.2609ms ago: executing program 2 (id=87): io_uring_setup(0x0, &(0x7f0000000000)) 1.10544ms ago: executing program 3 (id=88): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/dlm-control', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/dlm-control', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/dlm-control', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/dlm-control', 0x800, 0x0) 708.83µs ago: executing program 4 (id=89): recvmmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0) 471.15µs ago: executing program 1 (id=90): symlinkat(&(0x7f0000000000), 0xffffffffffffffff, &(0x7f0000000000)) 362.88µs ago: executing program 3 (id=91): nanosleep(&(0x7f0000000000), 0x0) 268.25µs ago: executing program 4 (id=92): sendmmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 72.22µs ago: executing program 0 (id=93): wait4(0x0, 0x0, 0x0, 0x0) 0s ago: executing program 4 (id=94): syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) 0s ago: executing program 3 (id=97): io_submit(0x0, 0x0, &(0x7f0000000000)) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.0.176' (ED25519) to the list of known hosts. syzkaller login: [ 26.395992][ T4029] cgroup: Unknown subsys name 'net' [ 26.613310][ T4029] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 26.881317][ T4029] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 27.859961][ T4140] Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP [ 27.861271][ T4140] Modules linked in: [ 27.861889][ T4140] CPU: 0 PID: 4140 Comm: syz.3.97 Not tainted syzkaller #0 [ 27.863050][ T4140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 27.864538][ T4140] pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc) [ 27.865812][ T4140] pc : lookup_ioctx+0x108/0x7d0 [ 27.866609][ T4140] lr : lookup_ioctx+0xe4/0x7d0 [ 27.867432][ T4140] sp : ffff80001f5e7c20 [ 27.868079][ T4140] x29: ffff80001f5e7c20 x28: ffff0000c21f51c0 x27: 0000000020000000 [ 27.869396][ T4140] x26: 1fffe0001843ea38 x25: 1ffff00003ebcfd6 x24: ffff0000c1019700 [ 27.870714][ T4140] x23: dfff800000000000 x22: 00000000fffffff2 x21: 0000000000000000 [ 27.872066][ T4140] x20: ffff0000c21f51c0 x19: 0000000000000000 x18: 0000000000000000 [ 27.873353][ T4140] x17: 0000000000000000 x16: ffff800008a1a0d8 x15: 0000000000000000 [ 27.874754][ T4140] x14: 0000000000000000 x13: 1ffff0000283006b x12: 0000000000ff0100 [ 27.876018][ T4140] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000ffffffffffff [ 27.877411][ T4140] x8 : 0000000000000000 x7 : ffff800008751314 x6 : 0000000000000000 [ 27.878797][ T4140] x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001 [ 27.880207][ T4140] x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000 [ 27.881558][ T4140] Call trace: [ 27.882047][ T4140] lookup_ioctx+0x108/0x7d0 [ 27.882772][ T4140] __arm64_sys_io_submit+0x110/0x40c [ 27.883629][ T4140] invoke_syscall+0x98/0x2b8 [ 27.884379][ T4140] el0_svc_common+0x138/0x258 [ 27.885115][ T4140] do_el0_svc+0x58/0x14c [ 27.885780][ T4140] el0_svc+0x78/0x1e0 [ 27.886416][ T4140] el0t_64_sync_handler+0xcc/0xe4 [ 27.887181][ T4140] el0t_64_sync+0x1a0/0x1a4 [ 27.887927][ T4140] Code: d503229f 2a1f03f6 2a1f03e0 b8400953 (2a1603e1) [ 27.889010][ T4140] ---[ end trace 5fbdfe16fea88ebc ]--- [ 28.089835][ T4140] Kernel panic - not syncing: Oops - BTI: Fatal exception [ 28.090842][ T4140] SMP: stopping secondary CPUs [ 28.091594][ T4140] Kernel Offset: disabled [ 28.092169][ T4140] CPU features: 0x8,000003c1,7d33ffd9 [ 28.093002][ T4140] Memory Limit: none [ 28.269184][ T4140] Rebooting in 86400 seconds..