last executing test programs:

59.849035ms ago: executing program 3 (id=4):
syz_init_net_socket$netrom(0x6, 0x5, 0x0)

46.019626ms ago: executing program 0 (id=1):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/mISDNtimer', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/mISDNtimer', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/mISDNtimer', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/mISDNtimer', 0x800, 0x0)

45.324436ms ago: executing program 4 (id=5):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/ipv6host', 0x2, 0x0)

43.813956ms ago: executing program 3 (id=6):
fanotify_init(0x0, 0x0)

36.677407ms ago: executing program 1 (id=2):
getresgid(&(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000))

374.58µs ago: executing program 4 (id=7):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/pktcdvd/control', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pktcdvd/control', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/pktcdvd/control', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/pktcdvd/control', 0x800, 0x0)

277.38µs ago: executing program 1 (id=8):
setregid(0x0, 0x0)

256.12µs ago: executing program 2 (id=3):
socket$inet6_icmp(0xa, 0x2, 0x3a)

218.26µs ago: executing program 1 (id=9):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/nvme-fabrics', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/nvme-fabrics', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/nvme-fabrics', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvme-fabrics', 0x800, 0x0)

173.29µs ago: executing program 4 (id=10):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vmci', 0x2, 0x0)

150.26µs ago: executing program 3 (id=11):
socket$pppoe(0x18, 0x1, 0x0)

45.75µs ago: executing program 0 (id=12):
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)

0s ago: executing program 2 (id=13):
symlinkat(&(0x7f0000000000), 0xffffffffffffffff, &(0x7f0000000000))

0s ago: executing program 4 (id=18):
io_destroy(0x0)

kernel console output (not intermixed with test programs):

Warning: Permanently added '10.128.0.160' (ED25519) to the list of known hosts.
[   25.528557][ T4029] cgroup: Unknown subsys name 'net'
[   25.784220][ T4029] cgroup: Unknown subsys name 'rlimit'
Setting up swapspace version 1, size = 127995904 bytes
[   26.061751][ T4029] Adding 124996k swap on ./swap-file.  Priority:0 extents:1 across:124996k SSFS
[   26.824261][ T4065] Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
[   26.825564][ T4065] Modules linked in:
[   26.826183][ T4065] CPU: 1 PID: 4065 Comm: syz.4.18 Not tainted 5.15.189-syzkaller #0
[   26.827501][ T4065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
[   26.829139][ T4065] pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
[   26.830271][ T4065] pc : lookup_ioctx+0x108/0x7d0
[   26.831093][ T4065] lr : lookup_ioctx+0xe4/0x7d0
[   26.831802][ T4065] sp : ffff80001f5f7c40
[   26.832553][ T4065] x29: ffff80001f5f7c40 x28: ffff0000c18dd1c0 x27: 0000000000000000
[   26.833973][ T4065] x26: 1fffe0001831ba38 x25: 1ffff00003ebefd6 x24: ffff0000c1c1d640
[   26.835319][ T4065] x23: dfff800000000000 x22: 00000000fffffff2 x21: 0000000000000000
[   26.836655][ T4065] x20: ffff0000c18dd1c0 x19: 0000000000000000 x18: 0000000000000000
[   26.838053][ T4065] x17: 0000000000000000 x16: ffff800008a19714 x15: 0000000000000000
[   26.839368][ T4065] x14: 0000000000000000 x13: 1ffff0000282e06b x12: 0000000000ff0100
[   26.840689][ T4065] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000ffffffffffff
[   26.842020][ T4065] x8 : 0000000000000000 x7 : ffff800008750ed4 x6 : 0000000000000000
[   26.843220][ T4065] x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
[   26.844432][ T4065] x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
[   26.845632][ T4065] Call trace:
[   26.846126][ T4065]  lookup_ioctx+0x108/0x7d0
[   26.846846][ T4065]  __arm64_sys_io_destroy+0x90/0x1b8
[   26.847694][ T4065]  invoke_syscall+0x98/0x2b8
[   26.848363][ T4065]  el0_svc_common+0x138/0x258
[   26.849030][ T4065]  do_el0_svc+0x58/0x14c
[   26.849653][ T4065]  el0_svc+0x78/0x1e0
[   26.850225][ T4065]  el0t_64_sync_handler+0xcc/0xe4
[   26.850955][ T4065]  el0t_64_sync+0x1a0/0x1a4
[   26.851652][ T4065] Code: d503229f 2a1f03f6 2a1f03e0 b8400953 (2a1603e1) 
[   26.852646][ T4065] ---[ end trace 18e343a516b0a8f4 ]---
SYZFAIL: failed to recv rpc
fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor)
[   27.048797][ T4065] Kernel panic - not syncing: Oops - BTI: Fatal exception
[   27.049929][ T4065] SMP: stopping secondary CPUs
[   27.050770][ T4065] Kernel Offset: disabled
[   27.051467][ T4065] CPU features: 0x8,000003c1,7d33ffd9
[   27.052297][ T4065] Memory Limit: none
[   27.235952][ T4065] Rebooting in 86400 seconds..