last executing test programs: 695.448192ms ago: executing program 4 (id=28): socket$isdn_base(0x22, 0x3, 0x0) 668.156756ms ago: executing program 4 (id=30): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/ptrace', 0x2, 0x0) 619.365846ms ago: executing program 4 (id=34): recvmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0) 615.558817ms ago: executing program 4 (id=38): memfd_create(&(0x7f0000000000), 0x0) 563.170218ms ago: executing program 4 (id=44): syz_open_dev$vivid(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$vivid(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$vivid(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$vivid(&(0x7f0000000100), 0x0, 0x800) 495.883147ms ago: executing program 4 (id=46): pause() 211.770524ms ago: executing program 3 (id=83): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/tty', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/tty', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/tty', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/tty', 0x800, 0x0) 211.634954ms ago: executing program 2 (id=84): request_key(&(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), 0x0) 211.193179ms ago: executing program 3 (id=87): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/sequencer', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/sequencer', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/sequencer', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/sequencer', 0x800, 0x0) 208.295513ms ago: executing program 2 (id=88): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vcs', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/vcs', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/vcs', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/vcs', 0x800, 0x0) 135.742113ms ago: executing program 2 (id=92): socket$kcm(0x29, 0x2, 0x0) 135.638725ms ago: executing program 3 (id=93): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/debug/sync/info', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/sys/kernel/debug/sync/info', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/kernel/debug/sync/info', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/sys/kernel/debug/sync/info', 0x800, 0x0) 135.103577ms ago: executing program 1 (id=95): recvmmsg(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0) 131.868118ms ago: executing program 2 (id=96): syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) 83.824862ms ago: executing program 3 (id=98): fsconfig$FSCONFIG_CMD_CREATE(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0) 83.578589ms ago: executing program 1 (id=99): pidfd_open(0x0, 0x0) 83.501256ms ago: executing program 0 (id=100): fchmodat(0xffffffffffffffff, &(0x7f0000000000), 0x0) 83.353174ms ago: executing program 1 (id=101): openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/cmdline', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/proc/cmdline', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/cmdline', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/proc/cmdline', 0x800, 0x0) 83.019957ms ago: executing program 2 (id=102): getresuid(&(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000)) 82.876475ms ago: executing program 3 (id=103): syz_open_dev$vcsn(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$vcsn(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$vcsn(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$vcsn(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$vcsn(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$vcsn(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$vcsn(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$vcsn(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$vcsn(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$vcsn(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$vcsn(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$vcsn(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$vcsn(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$vcsn(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$vcsn(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$vcsn(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$vcsn(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$vcsn(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$vcsn(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$vcsn(&(0x7f0000000500), 0x4, 0x800) 80.109919ms ago: executing program 0 (id=104): sched_setparam(0x0, &(0x7f0000000000)) 68.229005ms ago: executing program 1 (id=105): accept(0xffffffffffffffff, 0x0, &(0x7f0000000000)) 19.921561ms ago: executing program 2 (id=106): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/cuse', 0x2, 0x0) 19.689478ms ago: executing program 0 (id=107): socket$tipc(0x1e, 0x2, 0x0) 19.316798ms ago: executing program 1 (id=108): syz_open_dev$vim2m(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$vim2m(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$vim2m(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$vim2m(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$vim2m(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$vim2m(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$vim2m(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$vim2m(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$vim2m(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$vim2m(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$vim2m(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$vim2m(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$vim2m(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$vim2m(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$vim2m(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$vim2m(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$vim2m(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$vim2m(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$vim2m(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$vim2m(&(0x7f0000000500), 0x4, 0x800) 19.077593ms ago: executing program 3 (id=109): readlinkat(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000000), 0x0) 18.821178ms ago: executing program 0 (id=110): syz_open_dev$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) 18.712302ms ago: executing program 1 (id=111): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vmci', 0x2, 0x0) 10.204586ms ago: executing program 0 (id=112): llistxattr(&(0x7f0000000000), &(0x7f0000000000), 0x0) 0s ago: executing program 0 (id=113): setns(0xffffffffffffffff, 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.0.239' (ED25519) to the list of known hosts. [ 65.016646][ T5825] cgroup: Unknown subsys name 'net' [ 65.161805][ T5825] cgroup: Unknown subsys name 'cpuset' [ 65.170938][ T5825] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 66.548664][ T5825] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 69.490722][ T5956] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000046: 0000 [#1] SMP KASAN PTI [ 69.502659][ T5956] KASAN: null-ptr-deref in range [0x0000000000000230-0x0000000000000237] [ 69.511102][ T5956] CPU: 1 UID: 0 PID: 5956 Comm: syz.2.106 Not tainted syzkaller #0 PREEMPT(full) [ 69.520394][ T5956] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 69.530545][ T5956] RIP: 0010:fuse_dev_alloc_install+0x39/0x80 [ 69.536650][ T5956] Code: e8 bc f8 ff ff 48 89 c3 48 85 c0 74 47 e8 8f 40 7f fe 49 8d be 30 02 00 00 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 05 e8 6c 80 e9 fe 49 8b 96 30 02 00 00 49 c7 86 30 [ 69.556456][ T5956] RSP: 0018:ffffc900046e7710 EFLAGS: 00010202 [ 69.562533][ T5956] RAX: 0000000000000046 RBX: ffff88807b466500 RCX: dffffc0000000000 [ 69.570582][ T5956] RDX: 0000000000000000 RSI: ffffffff8dfd108f RDI: 0000000000000230 [ 69.578541][ T5956] RBP: ffff88801f6bae90 R08: ffffffff903318f7 R09: 1ffffffff206631e [ 69.586603][ T5956] R10: dffffc0000000000 R11: fffffbfff206631f R12: ffff888031ae8040 [ 69.594652][ T5956] R13: ffff888031ae8010 R14: 0000000000000000 R15: ffff888031ae8000 [ 69.602625][ T5956] FS: 000055559050d500(0000) GS:ffff888125328000(0000) knlGS:0000000000000000 [ 69.611542][ T5956] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.618114][ T5956] CR2: 00007fdbe3f456b8 CR3: 00000000767b0000 CR4: 00000000003526f0 [ 69.626175][ T5956] Call Trace: [ 69.629444][ T5956] [ 69.632372][ T5956] cuse_channel_open+0x107/0x7c0 [ 69.637305][ T5956] ? __pfx_cuse_channel_open+0x10/0x10 [ 69.642766][ T5956] misc_open+0x2d5/0x350 [ 69.647541][ T5956] chrdev_open+0x4cd/0x5e0 [ 69.651971][ T5956] ? __pfx_chrdev_open+0x10/0x10 [ 69.656917][ T5956] ? fsnotify_open_perm_and_set_mode+0x135/0x6d0 [ 69.663328][ T5956] ? __pfx_chrdev_open+0x10/0x10 [ 69.668263][ T5956] do_dentry_open+0x785/0x14e0 [ 69.673025][ T5956] vfs_open+0x3b/0x340 [ 69.677093][ T5956] ? path_openat+0x2df0/0x3860 [ 69.681849][ T5956] path_openat+0x2e08/0x3860 [ 69.686439][ T5956] ? __pfx_stack_trace_save+0x10/0x10 [ 69.691808][ T5956] ? stack_depot_save_flags+0x33/0x810 [ 69.697266][ T5956] ? __pfx_path_openat+0x10/0x10 [ 69.702193][ T5956] ? __x64_sys_openat+0x138/0x170 [ 69.707217][ T5956] ? __lock_acquire+0x6b5/0x2cf0 [ 69.712161][ T5956] do_file_open+0x23e/0x4a0 [ 69.716656][ T5956] ? __pfx_do_file_open+0x10/0x10 [ 69.721681][ T5956] ? _raw_spin_unlock+0x28/0x50 [ 69.726615][ T5956] ? alloc_fd+0x64b/0x6c0 [ 69.731034][ T5956] do_sys_openat2+0x113/0x200 [ 69.735718][ T5956] ? __pfx_do_sys_openat2+0x10/0x10 [ 69.740917][ T5956] ? exc_page_fault+0x6a/0xc0 [ 69.745590][ T5956] ? do_user_addr_fault+0xc6f/0x1340 [ 69.750873][ T5956] __x64_sys_openat+0x138/0x170 [ 69.755725][ T5956] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.761781][ T5956] do_syscall_64+0x15f/0xf80 [ 69.766374][ T5956] ? trace_irq_disable+0x3b/0x140 [ 69.771394][ T5956] ? clear_bhb_loop+0x40/0x90 [ 69.776244][ T5956] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.782129][ T5956] RIP: 0033:0x7f745c79c819 [ 69.786640][ T5956] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 69.806245][ T5956] RSP: 002b:00007ffd04062158 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 69.814653][ T5956] RAX: ffffffffffffffda RBX: 00007f745ca15fa0 RCX: 00007f745c79c819 [ 69.822713][ T5956] RDX: 0000000000000002 RSI: 0000200000000040 RDI: ffffffffffffff9c [ 69.830765][ T5956] RBP: 00007f745c832c91 R08: 0000000000000000 R09: 0000000000000000 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 69.838767][ T5956] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 69.846903][ T5956] R13: 00007f745ca15fac R14: 00007f745ca15fa0 R15: 00007f745ca15fa0 [ 69.854876][ T5956] [ 69.857888][ T5956] Modules linked in: [ 69.862198][ T5956] ---[ end trace 0000000000000000 ]--- [ 69.967242][ T5956] RIP: 0010:fuse_dev_alloc_install+0x39/0x80 [ 69.973777][ T5956] Code: e8 bc f8 ff ff 48 89 c3 48 85 c0 74 47 e8 8f 40 7f fe 49 8d be 30 02 00 00 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 05 e8 6c 80 e9 fe 49 8b 96 30 02 00 00 49 c7 86 30 [ 69.997231][ T5956] RSP: 0018:ffffc900046e7710 EFLAGS: 00010202 [ 70.003804][ T5956] RAX: 0000000000000046 RBX: ffff88807b466500 RCX: dffffc0000000000 [ 70.012384][ T5956] RDX: 0000000000000000 RSI: ffffffff8dfd108f RDI: 0000000000000230 [ 70.020660][ T5956] RBP: ffff88801f6bae90 R08: ffffffff903318f7 R09: 1ffffffff206631e [ 70.029007][ T5956] R10: dffffc0000000000 R11: fffffbfff206631f R12: ffff888031ae8040 [ 70.037048][ T5956] R13: ffff888031ae8010 R14: 0000000000000000 R15: ffff888031ae8000 [ 70.050374][ T5956] FS: 000055559050d500(0000) GS:ffff888125328000(0000) knlGS:0000000000000000 [ 70.059949][ T5956] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.066611][ T5956] CR2: 00007fffde8c5f1c CR3: 00000000767b0000 CR4: 00000000003526f0 [ 70.074960][ T5956] Kernel panic - not syncing: Fatal exception [ 70.081468][ T5956] Kernel Offset: disabled [ 70.085816][ T5956] Rebooting in 86400 seconds..