last executing test programs: 108.428948ms ago: executing program 4 (id=86): sendmmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 107.651918ms ago: executing program 4 (id=90): openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/thread-self/attr/current', 0x2, 0x0) 88.070693ms ago: executing program 0 (id=92): syz_open_dev$admmidi(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$admmidi(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$admmidi(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$admmidi(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$admmidi(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$admmidi(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$admmidi(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$admmidi(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$admmidi(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$admmidi(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$admmidi(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$admmidi(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$admmidi(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$admmidi(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$admmidi(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$admmidi(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$admmidi(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$admmidi(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$admmidi(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$admmidi(&(0x7f0000000500), 0x4, 0x800) 87.645013ms ago: executing program 4 (id=95): rt_sigpending(&(0x7f0000000000), 0x0) 87.112293ms ago: executing program 4 (id=99): 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) 50.29374ms ago: executing program 2 (id=113): syz_init_net_socket$x25(0x9, 0x5, 0x0) 49.70247ms ago: executing program 2 (id=115): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/dlm-control', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/dlm-control', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/dlm-control', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/dlm-control', 0x800, 0x0) 32.678153ms ago: executing program 2 (id=117): pipe2(&(0x7f0000000000), 0x0) 32.448133ms ago: executing program 3 (id=118): memfd_secret(0x0) 32.254004ms ago: executing program 1 (id=119): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/ambient', 0x2, 0x0) 32.041204ms ago: executing program 3 (id=120): syz_open_dev$sndctrl(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$sndctrl(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$sndctrl(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$sndctrl(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$sndctrl(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$sndctrl(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$sndctrl(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$sndctrl(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$sndctrl(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$sndctrl(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$sndctrl(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$sndctrl(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$sndctrl(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$sndctrl(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$sndctrl(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$sndctrl(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$sndctrl(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$sndctrl(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$sndctrl(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$sndctrl(&(0x7f0000000500), 0x4, 0x800) 31.922764ms ago: executing program 1 (id=121): fstat(0xffffffffffffffff, &(0x7f0000000000)) 31.658724ms ago: executing program 2 (id=122): syz_open_dev$dricontrol(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$dricontrol(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$dricontrol(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$dricontrol(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$dricontrol(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$dricontrol(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$dricontrol(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$dricontrol(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$dricontrol(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$dricontrol(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$dricontrol(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$dricontrol(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$dricontrol(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$dricontrol(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$dricontrol(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$dricontrol(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$dricontrol(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$dricontrol(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$dricontrol(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$dricontrol(&(0x7f0000000500), 0x4, 0x800) 31.376934ms ago: executing program 0 (id=123): close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0) 30.547904ms ago: executing program 3 (id=124): socket$can_j1939(0x1d, 0x2, 0x7) 17.865967ms ago: executing program 1 (id=125): syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) 17.676197ms ago: executing program 3 (id=126): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/sequencer', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/sequencer', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/sequencer', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/sequencer', 0x800, 0x0) 17.601357ms ago: executing program 0 (id=127): getpeername(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000000)) 17.536107ms ago: executing program 0 (id=128): fanotify_init(0x0, 0x0) 17.349807ms ago: executing program 1 (id=129): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/lightnvm/control', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/lightnvm/control', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/lightnvm/control', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/lightnvm/control', 0x800, 0x0) 17.303927ms ago: executing program 3 (id=130): socket$inet6_udp(0xa, 0x2, 0x0) 16.854967ms ago: executing program 2 (id=131): syz_open_dev$swradio(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$swradio(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$swradio(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$swradio(&(0x7f0000000100), 0x0, 0x800) 2.20911ms ago: executing program 4 (id=132): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vmci', 0x2, 0x0) 2.0155ms ago: executing program 0 (id=133): process_vm_readv(0x0, &(0x7f0000000000), 0x0, &(0x7f0000000000), 0x0, 0x0) 1.86749ms ago: executing program 3 (id=134): userfaultfd(0x0) 1.82487ms ago: executing program 1 (id=135): openat(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/relabel', 0x2, 0x0) 1.74047ms ago: executing program 2 (id=136): msgctl$IPC_INFO(0x0, 0x3, &(0x7f0000000000)) 1.51669ms ago: executing program 0 (id=137): clock_nanosleep(0x0, 0x0, &(0x7f0000000000), 0x0) 1.3145ms ago: executing program 1 (id=138): signalfd4(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 0s ago: executing program 4 (id=139): io_pgetevents(0x0, 0x0, 0x0, &(0x7f0000000000), 0x0, 0x0) kernel console output (not intermixed with test programs): [ 11.186317][ T3713] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: [ 11.214211][ T148] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 11.216126][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.136' (ED25519) to the list of known hosts. syzkaller login: [ 30.333313][ T4035] cgroup: Unknown subsys name 'net' [ 30.531868][ T4035] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 30.849284][ T4035] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 31.817862][ T4187] uffd: Set unprivileged_userfaultfd sysctl knob to 1 if kernel faults must be handled without obtaining CAP_SYS_PTRACE capability [ 31.833306][ T4193] Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP [ 31.834738][ T4193] Modules linked in: [ 31.835346][ T4193] CPU: 1 PID: 4193 Comm: syz.4.139 Not tainted syzkaller #0 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 31.836643][ T4193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 31.838408][ T4193] pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc) [ 31.839841][ T4193] pc : lookup_ioctx+0x10c/0x7c0 [ 31.840737][ T4193] lr : lookup_ioctx+0xe8/0x7c0 [ 31.841513][ T4193] sp : ffff80001fc17ac0 [ 31.842224][ T4193] x29: ffff80001fc17ac0 x28: ffff80001fc17ca0 x27: dfff800000000000 [ 31.843595][ T4193] x26: ffff80001fc17b20 x25: ffff700003f82f64 x24: ffff0000c96af300 [ 31.844858][ T4193] x23: dfff800000000000 x22: 00000000fffffff2 x21: 0000000000000000 [ 31.846226][ T4193] x20: ffff0000c8a30000 x19: 0000000000000000 x18: 0000000000000000 [ 31.847573][ T4193] x17: 0000000000000000 x16: ffff800008a323f0 x15: 0000000000000000 [ 31.848897][ T4193] x14: 0000000000000002 x13: 1ffff0000288202b x12: 0000000097863b1e [ 31.850311][ T4193] x11: ff80800008a323cc x10: 0000000000000000 x9 : 0000ffffffffffff [ 31.851720][ T4193] x8 : 0000000000000000 x7 : ffff800008764494 x6 : 0000000000000000 [ 31.853058][ T4193] x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001 [ 31.854388][ T4193] x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000 [ 31.855708][ T4193] Call trace: [ 31.856275][ T4193] lookup_ioctx+0x10c/0x7c0 [ 31.857099][ T4193] do_io_getevents+0x12c/0x3c8 [ 31.857902][ T4193] __arm64_sys_io_pgetevents+0x30c/0x514 [ 31.858918][ T4193] invoke_syscall+0x98/0x28c [ 31.859755][ T4193] el0_svc_common+0x13c/0x258 [ 31.860596][ T4193] do_el0_svc+0x5c/0x140 [ 31.861446][ T4193] el0_svc+0x78/0x1d0 [ 31.862156][ T4193] el0t_64_sync_handler+0xcc/0xe4 [ 31.863066][ T4193] el0t_64_sync+0x1a0/0x1a4 [ 31.863822][ T4193] Code: d503229f 2a1f03f6 2a1f03e0 b8400953 (2a1603e1) [ 31.864946][ T4193] ---[ end trace d410d8b3604f01f7 ]--- [ 32.074657][ T4193] Kernel panic - not syncing: Oops - BTI: Fatal exception [ 32.075903][ T4193] SMP: stopping secondary CPUs [ 32.076692][ T4193] Kernel Offset: disabled [ 32.077452][ T4193] CPU features: 0xa,000003c1,7d33ffd9 [ 32.078327][ T4193] Memory Limit: none [ 32.251912][ T4193] Rebooting in 86400 seconds..