last executing test programs: 324.573634ms ago: executing program 2 (id=312): syz_open_dev$sndpcmc(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$sndpcmc(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000140), 0xa, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000180), 0xa, 0x1) syz_open_dev$sndpcmc(&(0x7f00000001c0), 0xa, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000200), 0xa, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000240), 0x14, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000280), 0x14, 0x1) syz_open_dev$sndpcmc(&(0x7f00000002c0), 0x14, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000300), 0x14, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000340), 0x1e, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000380), 0x1e, 0x1) syz_open_dev$sndpcmc(&(0x7f00000003c0), 0x1e, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000400), 0x1e, 0x800) syz_open_dev$sndpcmc(&(0x7f0000000440), 0x28, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000480), 0x28, 0x1) syz_open_dev$sndpcmc(&(0x7f00000004c0), 0x28, 0x2) syz_open_dev$sndpcmc(&(0x7f0000000500), 0x28, 0x800) 266.858162ms ago: executing program 2 (id=319): fanotify_init(0x0, 0x0) 221.50456ms ago: executing program 3 (id=320): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/snd/timer', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snd/timer', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/snd/timer', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/snd/timer', 0x800, 0x0) 220.660208ms ago: executing program 2 (id=324): flistxattr(0xffffffffffffffff, &(0x7f0000000000), 0x0) 220.511252ms ago: executing program 3 (id=325): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttynull', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ttynull', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ttynull', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ttynull', 0x800, 0x0) 214.649318ms ago: executing program 1 (id=326): getgid() 145.515039ms ago: executing program 0 (id=328): mq_open(&(0x7f0000000000), 0x0, 0x0, &(0x7f0000000000)) 145.337754ms ago: executing program 2 (id=329): socket$l2tp6(0xa, 0x2, 0x73) 145.148691ms ago: executing program 3 (id=330): renameat2(0xffffffffffffffff, &(0x7f0000000000), 0xffffffffffffffff, &(0x7f0000000000), 0x0) 145.029763ms ago: executing program 1 (id=331): membarrier(0x0, 0x0) 144.858325ms ago: executing program 0 (id=332): writev(0xffffffffffffffff, &(0x7f0000000000), 0x0) 143.779106ms ago: executing program 2 (id=333): finit_module(0xffffffffffffffff, &(0x7f0000000000), 0x0) 143.718797ms ago: executing program 4 (id=334): vmsplice(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 138.210803ms ago: executing program 3 (id=335): geteuid() 134.227874ms ago: executing program 1 (id=336): unlink(&(0x7f0000000000)) 116.121332ms ago: executing program 0 (id=337): syz_open_dev$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$vcsn(&(0x7f0000000500), 0x4, 0x800) 75.522971ms ago: executing program 4 (id=338): socket$inet_icmp_raw(0x2, 0x3, 0x1) 75.312335ms ago: executing program 0 (id=339): execveat(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), 0x0) 75.256177ms ago: executing program 1 (id=340): socket$igmp(0x2, 0x3, 0x2) 75.201086ms ago: executing program 3 (id=341): epoll_pwait(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, &(0x7f0000000000), 0x0) 75.115149ms ago: executing program 2 (id=342): syz_open_dev$media(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$media(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$media(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$media(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$media(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$media(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$media(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$media(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$media(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$media(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$media(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$media(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$media(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$media(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$media(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$media(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$media(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$media(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$media(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$media(&(0x7f0000000500), 0x4, 0x800) 75.005573ms ago: executing program 4 (id=343): semget(0xffffffffffffffff, 0x0, 0x0) 9.274582ms ago: executing program 0 (id=344): semop(0x0, &(0x7f0000000000), 0x0) 8.992099ms ago: executing program 4 (id=345): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/debug/bluetooth/6lowpan_control', 0x2, 0x0) 8.785119ms ago: executing program 3 (id=346): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/cuse', 0x2, 0x0) 8.71016ms ago: executing program 1 (id=347): timer_delete(0x0) 8.536957ms ago: executing program 0 (id=348): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ppp', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ppp', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ppp', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ppp', 0x800, 0x0) 8.367025ms ago: executing program 4 (id=349): removexattr(&(0x7f0000000000), &(0x7f0000000000)) 2.873851ms ago: executing program 1 (id=350): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vfio/vfio', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/vfio/vfio', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/vfio/vfio', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/vfio/vfio', 0x800, 0x0) 0s ago: executing program 4 (id=351): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/virtual_nci', 0x2, 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.1.116' (ED25519) to the list of known hosts. [ 64.417810][ T5823] cgroup: Unknown subsys name 'net' [ 64.489365][ T5823] cgroup: Unknown subsys name 'cpuset' [ 64.499172][ T5823] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 65.831059][ T5823] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 70.697873][ T6199] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000046: 0000 [#1] SMP KASAN PTI [ 70.710154][ T6199] KASAN: null-ptr-deref in range [0x0000000000000230-0x0000000000000237] [ 70.719027][ T6199] CPU: 1 UID: 0 PID: 6199 Comm: syz.3.346 Not tainted syzkaller #0 PREEMPT(full) [ 70.728226][ T6199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 70.738315][ T6199] RIP: 0010:fuse_dev_alloc_install+0x39/0x80 [ 70.744412][ T6199] Code: e8 bc f8 ff ff 48 89 c3 48 85 c0 74 47 e8 8f 2a 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 3c 75 e9 fe 49 8b 96 30 02 00 00 49 c7 86 30 [ 70.764309][ T6199] RSP: 0018:ffffc90004597710 EFLAGS: 00010202 [ 70.770491][ T6199] RAX: 0000000000000046 RBX: ffff888077257800 RCX: dffffc0000000000 [ 70.778622][ T6199] RDX: 0000000000000000 RSI: ffffffff8dfd4824 RDI: 0000000000000230 [ 70.786669][ T6199] RBP: ffff88802d6e7f90 R08: ffffffff90333df7 R09: 1ffffffff20667be [ 70.794633][ T6199] R10: dffffc0000000000 R11: fffffbfff20667bf R12: ffff88802ae34840 [ 70.802611][ T6199] R13: ffff88802ae34810 R14: 0000000000000000 R15: ffff88802ae34800 [ 70.810578][ T6199] FS: 000055558584a500(0000) GS:ffff888125321000(0000) knlGS:0000000000000000 [ 70.819920][ T6199] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.826643][ T6199] CR2: 00007f6fe252ba40 CR3: 0000000075f76000 CR4: 00000000003526f0 [ 70.834625][ T6199] Call Trace: [ 70.837975][ T6199] [ 70.840934][ T6199] cuse_channel_open+0x107/0x7c0 [ 70.845864][ T6199] ? __pfx_cuse_channel_open+0x10/0x10 [ 70.851403][ T6199] misc_open+0x2d5/0x350 [ 70.855726][ T6199] chrdev_open+0x4cd/0x5e0 [ 70.860163][ T6199] ? __pfx_chrdev_open+0x10/0x10 [ 70.865172][ T6199] ? fsnotify_open_perm_and_set_mode+0x135/0x6d0 [ 70.871587][ T6199] ? __pfx_chrdev_open+0x10/0x10 [ 70.876693][ T6199] do_dentry_open+0x785/0x14e0 [ 70.881800][ T6199] vfs_open+0x3b/0x340 [ 70.885967][ T6199] ? path_openat+0x2df0/0x3860 [ 70.890814][ T6199] path_openat+0x2e08/0x3860 [ 70.895391][ T6199] ? __pfx_stack_trace_save+0x10/0x10 [ 70.900846][ T6199] ? stack_depot_save_flags+0x33/0x810 [ 70.906291][ T6199] ? __pfx_path_openat+0x10/0x10 [ 70.911294][ T6199] ? __x64_sys_openat+0x138/0x170 [ 70.916308][ T6199] ? __lock_acquire+0x6b5/0x2cf0 [ 70.921237][ T6199] do_file_open+0x23e/0x4a0 [ 70.925806][ T6199] ? __pfx_do_file_open+0x10/0x10 [ 70.930988][ T6199] ? _raw_spin_unlock+0x28/0x50 [ 70.936002][ T6199] ? alloc_fd+0x64b/0x6c0 [ 70.940329][ T6199] do_sys_openat2+0x113/0x200 [ 70.944998][ T6199] ? __pfx_do_sys_openat2+0x10/0x10 [ 70.950188][ T6199] ? exc_page_fault+0x6a/0xc0 [ 70.954955][ T6199] ? do_user_addr_fault+0xc6f/0x1340 [ 70.960225][ T6199] __x64_sys_openat+0x138/0x170 [ 70.965061][ T6199] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 70.971110][ T6199] do_syscall_64+0x15f/0xf80 [ 70.975689][ T6199] ? trace_irq_disable+0x3b/0x140 [ 70.980878][ T6199] ? clear_bhb_loop+0x40/0x90 [ 70.985551][ T6199] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 70.991438][ T6199] RIP: 0033:0x7f6fe259c819 [ 70.995949][ T6199] 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 [ 71.015937][ T6199] RSP: 002b:00007fff22ee1bb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 71.024987][ T6199] RAX: ffffffffffffffda RBX: 00007f6fe2815fa0 RCX: 00007f6fe259c819 [ 71.032961][ T6199] RDX: 0000000000000002 RSI: 0000200000000040 RDI: ffffffffffffff9c [ 71.040933][ T6199] RBP: 00007f6fe2632c91 R08: 0000000000000000 R09: 0000000000000000 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 71.049081][ T6199] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 71.057215][ T6199] R13: 00007f6fe2815fac R14: 00007f6fe2815fa0 R15: 00007f6fe2815fa0 [ 71.065188][ T6199] [ 71.068199][ T6199] Modules linked in: [ 71.072478][ T6199] ---[ end trace 0000000000000000 ]--- [ 71.255243][ T6199] RIP: 0010:fuse_dev_alloc_install+0x39/0x80 [ 71.298576][ T6199] Code: e8 bc f8 ff ff 48 89 c3 48 85 c0 74 47 e8 8f 2a 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 3c 75 e9 fe 49 8b 96 30 02 00 00 49 c7 86 30 [ 71.321689][ T6199] RSP: 0018:ffffc90004597710 EFLAGS: 00010202 [ 71.339298][ T6199] RAX: 0000000000000046 RBX: ffff888077257800 RCX: dffffc0000000000 [ 71.347940][ T6199] RDX: 0000000000000000 RSI: ffffffff8dfd4824 RDI: 0000000000000230 [ 71.356133][ T6199] RBP: ffff88802d6e7f90 R08: ffffffff90333df7 R09: 1ffffffff20667be [ 71.366160][ T6199] R10: dffffc0000000000 R11: fffffbfff20667bf R12: ffff88802ae34840 [ 71.374444][ T6199] R13: ffff88802ae34810 R14: 0000000000000000 R15: ffff88802ae34800 [ 71.384258][ T6199] FS: 000055558584a500(0000) GS:ffff888125221000(0000) knlGS:0000000000000000 [ 71.414907][ T6199] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.439778][ T6199] CR2: 000055c85d1d05a0 CR3: 0000000075f76000 CR4: 00000000003526f0 [ 71.455044][ T6199] Kernel panic - not syncing: Fatal exception [ 71.461576][ T6199] Kernel Offset: disabled [ 71.465951][ T6199] Rebooting in 86400 seconds..