last executing test programs:

71.304258ms ago: executing program 2 (id=53):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/rfkill', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/rfkill', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/rfkill', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/rfkill', 0x800, 0x0)

71.181318ms ago: executing program 4 (id=54):
sendmmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0)

70.893188ms ago: executing program 0 (id=55):
bind(0xffffffffffffffff, &(0x7f0000000000), 0x0)

70.734688ms ago: executing program 1 (id=56):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/rnullb0', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/rnullb0', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/rnullb0', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/rnullb0', 0x800, 0x0)

70.672558ms ago: executing program 3 (id=57):
readahead(0xffffffffffffffff, 0x0, 0x0)

70.646528ms ago: executing program 0 (id=58):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/thread-self/attr/current', 0x2, 0x0)

70.616618ms ago: executing program 4 (id=59):
shmget(0xffffffffffffffff, 0x0, 0x0, 0x0)

70.557098ms ago: executing program 2 (id=60):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/xen/evtchn', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/xen/evtchn', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/xen/evtchn', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/xen/evtchn', 0x800, 0x0)

51.332389ms ago: executing program 1 (id=61):
msgrcv(0x0, &(0x7f0000000000), 0x0, 0x0, 0x0)

51.036009ms ago: executing program 3 (id=62):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/dlm-monitor', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/dlm-monitor', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/dlm-monitor', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/dlm-monitor', 0x800, 0x0)

50.883879ms ago: executing program 0 (id=63):
quotactl_fd$Q_GETFMT(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000000))

50.794279ms ago: executing program 4 (id=64):
faccessat(0xffffffffffffffff, &(0x7f0000000000), 0x0)

50.667289ms ago: executing program 3 (id=65):
syz_open_dev$loop(&(0x7f0000000040), 0x0, 0x0)
syz_open_dev$loop(&(0x7f0000000080), 0x0, 0x1)
syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x800)
syz_open_dev$loop(&(0x7f0000000140), 0x1, 0x0)
syz_open_dev$loop(&(0x7f0000000180), 0x1, 0x1)
syz_open_dev$loop(&(0x7f00000001c0), 0x1, 0x2)
syz_open_dev$loop(&(0x7f0000000200), 0x1, 0x800)
syz_open_dev$loop(&(0x7f0000000240), 0x2, 0x0)
syz_open_dev$loop(&(0x7f0000000280), 0x2, 0x1)
syz_open_dev$loop(&(0x7f00000002c0), 0x2, 0x2)
syz_open_dev$loop(&(0x7f0000000300), 0x2, 0x800)
syz_open_dev$loop(&(0x7f0000000340), 0x3, 0x0)
syz_open_dev$loop(&(0x7f0000000380), 0x3, 0x1)
syz_open_dev$loop(&(0x7f00000003c0), 0x3, 0x2)
syz_open_dev$loop(&(0x7f0000000400), 0x3, 0x800)
syz_open_dev$loop(&(0x7f0000000440), 0x4, 0x0)
syz_open_dev$loop(&(0x7f0000000480), 0x4, 0x1)
syz_open_dev$loop(&(0x7f00000004c0), 0x4, 0x2)
syz_open_dev$loop(&(0x7f0000000500), 0x4, 0x800)

50.635419ms ago: executing program 4 (id=66):
nanosleep(&(0x7f0000000000), 0x0)

50.553589ms ago: executing program 1 (id=67):
ptrace(0x0, 0x0)

50.511049ms ago: executing program 2 (id=68):
fsmount(0xffffffffffffffff, 0x0, 0x0)

23.81217ms ago: executing program 0 (id=69):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/rtc0', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/rtc0', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/rtc0', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/rtc0', 0x800, 0x0)

23.68479ms ago: executing program 3 (id=70):
pivot_root(&(0x7f0000000000), &(0x7f0000000000))

23.608049ms ago: executing program 4 (id=71):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vndbinder', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/vndbinder', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/vndbinder', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/vndbinder', 0x800, 0x0)

23.564689ms ago: executing program 1 (id=72):
socket$isdn(0x22, 0x3, 0x0)

23.514209ms ago: executing program 2 (id=73):
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)

23.456969ms ago: executing program 0 (id=74):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/debug/damon/init_regions', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/sys/kernel/debug/damon/init_regions', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/kernel/debug/damon/init_regions', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/sys/kernel/debug/damon/init_regions', 0x800, 0x0)

23.374549ms ago: executing program 2 (id=75):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/debug/bluetooth/6lowpan_control', 0x2, 0x0)

693.07µs ago: executing program 3 (id=76):
mq_timedsend(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0)

409.61µs ago: executing program 1 (id=77):
process_vm_writev(0x0, &(0x7f0000000000), 0x0, &(0x7f0000000000), 0x0, 0x0)

270.4µs ago: executing program 0 (id=78):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ptmx', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ptmx', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ptmx', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ptmx', 0x800, 0x0)

188.5µs ago: executing program 4 (id=79):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/avc/cache_threshold', 0x2, 0x0)

67.93µs ago: executing program 1 (id=80):
openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/fs/binfmt_misc/register', 0x1, 0x0)

30.88µs ago: executing program 2 (id=81):
getpid()

0s ago: executing program 3 (id=82):
io_submit(0x0, 0x0, &(0x7f0000000000))

kernel console output (not intermixed with test programs):

Warning: Permanently added '10.128.1.39' (ED25519) to the list of known hosts.
[   29.965665][ T4036] cgroup: Unknown subsys name 'net'
[   30.228470][ T4036] cgroup: Unknown subsys name 'rlimit'
Setting up swapspace version 1, size = 127995904 bytes
[   30.544759][ T4036] Adding 124996k swap on ./swap-file.  Priority:0 extents:1 across:124996k SSFS
[   31.523394][ T4133] Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
[   31.524727][ T4133] Modules linked in:
[   31.525378][ T4133] CPU: 1 PID: 4133 Comm: syz.3.82 Not tainted syzkaller #0
[   31.526604][ T4133] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
[   31.528310][ T4133] pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
[   31.529586][ T4133] pc : lookup_ioctx+0x108/0x7c8
[   31.530436][ T4133] lr : lookup_ioctx+0xe4/0x7c8
[   31.531249][ T4133] sp : ffff80001f877c20
[   31.531945][ T4133] x29: ffff80001f877c20 x28: ffff0000cd4a51c0 x27: 0000000020000000
[   31.533382][ T4133] x26: 1fffe00019a94a38 x25: 1ffff00003f0efd6 x24: ffff0000cccd9140
[   31.534691][ T4133] x23: dfff800000000000 x22: 00000000fffffff2 x21: 0000000000000000
[   31.536098][ T4133] x20: ffff0000cd4a51c0 x19: 0000000000000000 x18: 0000000000000000
[   31.537481][ T4133] x17: 0000000000000000 x16: ffff800008a23a84 x15: 0000000000000000
[   31.538863][ T4133] x14: 0000000000000005 x13: 1ffff0000285402b x12: 0000000000ff0100
[   31.540216][ T4133] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000ffffffffffff
[   31.541599][ T4133] x8 : 0000000000000000 x7 : ffff800008758eb0 x6 : 0000000000000000
[   31.542885][ T4133] x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
[   31.544197][ T4133] x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
[   31.545621][ T4133] Call trace:
[   31.546157][ T4133]  lookup_ioctx+0x108/0x7c8
[   31.546867][ T4133]  __arm64_sys_io_submit+0x110/0x410
[   31.547720][ T4133]  invoke_syscall+0x98/0x2b0
[   31.548433][ T4133]  el0_svc_common+0x138/0x258
[   31.549131][ T4133]  do_el0_svc+0x58/0x13c
[   31.549789][ T4133]  el0_svc+0x78/0x1d0
[   31.550437][ T4133]  el0t_64_sync_handler+0xcc/0xe4
[   31.551284][ T4133]  el0t_64_sync+0x1a0/0x1a4
[   31.552085][ T4133] Code: d503229f 2a1f03f6 2a1f03e0 b8400953 (2a1603e1) 
[   31.553241][ T4133] ---[ end trace f4a912e16efdd997 ]---
SYZFAIL: failed to recv rpc
fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor)
[   31.737626][ T4133] Kernel panic - not syncing: Oops - BTI: Fatal exception
[   31.738799][ T4133] SMP: stopping secondary CPUs
[   31.739604][ T4133] Kernel Offset: disabled
[   31.740257][ T4133] CPU features: 0x8,000003c1,7d33ffd9
[   31.741129][ T4133] Memory Limit: none
[   31.925532][ T4133] Rebooting in 86400 seconds..