last executing test programs: 214.230818ms ago: executing program 1 (id=99): syz_open_dev$MSR(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$MSR(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$MSR(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$MSR(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$MSR(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$MSR(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$MSR(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$MSR(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$MSR(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$MSR(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$MSR(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$MSR(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$MSR(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$MSR(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$MSR(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$MSR(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$MSR(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$MSR(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$MSR(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$MSR(&(0x7f0000000500), 0x4, 0x800) 168.998151ms ago: executing program 3 (id=101): waitid(0x0, 0x0, 0x0, 0x0, 0x0) 168.928586ms ago: executing program 2 (id=102): inotify_init1(0x0) 168.844806ms ago: executing program 4 (id=103): lookup_dcookie(0x0, &(0x7f0000000000), 0x0) 168.677047ms ago: executing program 3 (id=104): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/hwrng', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/hwrng', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/hwrng', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/hwrng', 0x800, 0x0) 168.49171ms ago: executing program 1 (id=105): openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv4/tcp_rmem', 0x1, 0x0) 123.424671ms ago: executing program 0 (id=106): openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv4/vs/sync_qlen_max', 0x2, 0x0) 123.07134ms ago: executing program 2 (id=107): 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) 123.00618ms ago: executing program 4 (id=108): sched_getaffinity(0x0, 0x0, &(0x7f0000000000)) 122.920711ms ago: executing program 0 (id=109): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/video2', 0x2, 0x0) 122.803867ms ago: executing program 1 (id=110): openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/self/attr/current', 0x2, 0x0) 122.571004ms ago: executing program 3 (id=111): socket$inet6_sctp(0xa, 0x1, 0x84) 122.273947ms ago: executing program 2 (id=112): quotactl_fd$Q_GETFMT(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000000)) 77.700822ms ago: executing program 0 (id=113): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/syslog', 0x2, 0x0) 77.038423ms ago: executing program 4 (id=114): semtimedop(0x0, &(0x7f0000000000), 0x0, &(0x7f0000000000)) 76.967128ms ago: executing program 2 (id=115): socket$isdn_base(0x22, 0x3, 0x0) 76.888829ms ago: executing program 1 (id=116): pkey_alloc(0x0, 0x0) 76.851852ms ago: executing program 3 (id=117): io_uring_setup(0x0, &(0x7f0000000000)) 76.609979ms ago: executing program 4 (id=118): preadv2(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0, 0x0) 75.459498ms ago: executing program 0 (id=119): setfsgid(0x0) 64.554762ms ago: executing program 4 (id=120): unlinkat(0xffffffffffffffff, &(0x7f0000000000), 0x0) 56.493714ms ago: executing program 1 (id=121): modify_ldt$auto(0x0, &(0x7f0000000000), 0x0) 56.166408ms ago: executing program 3 (id=122): mq_unlink(&(0x7f0000000000)) 9.748308ms ago: executing program 2 (id=123): syz_open_dev$amidi(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$amidi(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$amidi(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$amidi(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$amidi(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$amidi(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$amidi(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$amidi(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$amidi(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$amidi(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$amidi(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$amidi(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$amidi(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$amidi(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$amidi(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$amidi(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$amidi(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$amidi(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$amidi(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$amidi(&(0x7f0000000500), 0x4, 0x800) 9.597688ms ago: executing program 0 (id=124): socket$key(0xf, 0x3, 0x2) 9.46437ms ago: executing program 4 (id=125): syz_init_net_socket$bt_cmtp(0x1f, 0x3, 0x5) 9.317697ms ago: executing program 1 (id=126): semop(0x0, &(0x7f0000000000), 0x0) 9.153696ms ago: executing program 3 (id=127): move_mount(0xffffffffffffffff, &(0x7f0000000000), 0xffffffffffffffff, &(0x7f0000000000), 0x0) 3.502284ms ago: executing program 0 (id=128): landlock_create_ruleset(&(0x7f0000000000), 0x0, 0x0) 0s ago: executing program 2 (id=129): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/userio', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/userio', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/userio', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/userio', 0x800, 0x0) 0s ago: executing program 0 (id=133): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/cuse', 0x2, 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.0.226' (ED25519) to the list of known hosts. [ 65.363018][ T5825] cgroup: Unknown subsys name 'net' [ 65.450909][ T5825] cgroup: Unknown subsys name 'cpuset' [ 65.459824][ T5825] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 66.785157][ T5825] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 69.910854][ T5982] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000046: 0000 [#1] SMP KASAN PTI [ 69.922860][ T5982] KASAN: null-ptr-deref in range [0x0000000000000230-0x0000000000000237] [ 69.931282][ T5982] CPU: 0 UID: 0 PID: 5982 Comm: syz.0.133 Not tainted syzkaller #0 PREEMPT(full) [ 69.940571][ T5982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 69.950793][ T5982] RIP: 0010:fuse_dev_alloc_install+0x39/0x80 [ 69.956853][ T5982] Code: e8 bc f8 ff ff 48 89 c3 48 85 c0 74 47 e8 7f 42 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 8c 88 e9 fe 49 8b 96 30 02 00 00 49 c7 86 30 [ 69.976560][ T5982] RSP: 0018:ffffc90004757710 EFLAGS: 00010202 [ 69.982620][ T5982] RAX: 0000000000000046 RBX: ffff88803388f600 RCX: dffffc0000000000 [ 69.990662][ T5982] RDX: 0000000000000000 RSI: ffffffff8dfd1a75 RDI: 0000000000000230 [ 69.998614][ T5982] RBP: ffff8880256ebf90 R08: ffffffff90331ff7 R09: 1ffffffff20663fe [ 70.006565][ T5982] R10: dffffc0000000000 R11: fffffbfff20663ff R12: ffff88807c511840 [ 70.014532][ T5982] R13: ffff88807c511810 R14: 0000000000000000 R15: ffff88807c511800 [ 70.022485][ T5982] FS: 000055556fc1c500(0000) GS:ffff888125224000(0000) knlGS:0000000000000000 [ 70.031583][ T5982] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.038324][ T5982] CR2: 0000555584c608c8 CR3: 000000007c2be000 CR4: 00000000003526f0 [ 70.046387][ T5982] Call Trace: [ 70.049664][ T5982] [ 70.052588][ T5982] cuse_channel_open+0x107/0x7c0 [ 70.057519][ T5982] ? __pfx_cuse_channel_open+0x10/0x10 [ 70.062967][ T5982] misc_open+0x2d5/0x350 [ 70.067229][ T5982] chrdev_open+0x4cd/0x5e0 [ 70.071981][ T5982] ? __pfx_chrdev_open+0x10/0x10 [ 70.076905][ T5982] ? fsnotify_open_perm_and_set_mode+0x135/0x6d0 [ 70.083224][ T5982] ? __pfx_chrdev_open+0x10/0x10 [ 70.088153][ T5982] do_dentry_open+0x785/0x14e0 [ 70.092991][ T5982] vfs_open+0x3b/0x340 [ 70.097062][ T5982] ? path_openat+0x2df0/0x3860 [ 70.101812][ T5982] path_openat+0x2e08/0x3860 [ 70.106434][ T5982] ? __pfx_stack_trace_save+0x10/0x10 [ 70.111791][ T5982] ? stack_depot_save_flags+0x33/0x810 [ 70.117413][ T5982] ? __pfx_path_openat+0x10/0x10 [ 70.122332][ T5982] ? __x64_sys_openat+0x138/0x170 [ 70.127344][ T5982] ? __lock_acquire+0x6b5/0x2cf0 [ 70.132299][ T5982] do_file_open+0x23e/0x4a0 [ 70.136789][ T5982] ? __pfx_do_file_open+0x10/0x10 [ 70.141804][ T5982] ? _raw_spin_unlock+0x28/0x50 [ 70.146642][ T5982] ? alloc_fd+0x64b/0x6c0 [ 70.150961][ T5982] do_sys_openat2+0x113/0x200 [ 70.155627][ T5982] ? __pfx_do_sys_openat2+0x10/0x10 [ 70.160811][ T5982] ? exc_page_fault+0x6a/0xc0 [ 70.165471][ T5982] ? do_user_addr_fault+0xc6f/0x1340 [ 70.170845][ T5982] __x64_sys_openat+0x138/0x170 [ 70.175682][ T5982] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 70.181728][ T5982] do_syscall_64+0x15f/0xf80 [ 70.186300][ T5982] ? trace_irq_disable+0x3b/0x140 [ 70.191305][ T5982] ? clear_bhb_loop+0x40/0x90 [ 70.195965][ T5982] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 70.201877][ T5982] RIP: 0033:0x7f3730f9c819 [ 70.206318][ T5982] 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 [ 70.226010][ T5982] RSP: 002b:00007ffef9098618 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 70.234425][ T5982] RAX: ffffffffffffffda RBX: 00007f3731215fa0 RCX: 00007f3730f9c819 [ 70.242427][ T5982] RDX: 0000000000000002 RSI: 0000200000000040 RDI: ffffffffffffff9c [ 70.250400][ T5982] RBP: 00007f3731032c91 R08: 0000000000000000 R09: 0000000000000000 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 70.258643][ T5982] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 70.266608][ T5982] R13: 00007f3731215fac R14: 00007f3731215fa0 R15: 00007f3731215fa0 [ 70.274576][ T5982] [ 70.277580][ T5982] Modules linked in: [ 70.282068][ T5982] ---[ end trace 0000000000000000 ]--- [ 70.347382][ T5982] RIP: 0010:fuse_dev_alloc_install+0x39/0x80 [ 70.355278][ T5982] Code: e8 bc f8 ff ff 48 89 c3 48 85 c0 74 47 e8 7f 42 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 8c 88 e9 fe 49 8b 96 30 02 00 00 49 c7 86 30 [ 70.378381][ T5982] RSP: 0018:ffffc90004757710 EFLAGS: 00010202 [ 70.384491][ T5982] RAX: 0000000000000046 RBX: ffff88803388f600 RCX: dffffc0000000000 [ 70.392690][ T5982] RDX: 0000000000000000 RSI: ffffffff8dfd1a75 RDI: 0000000000000230 [ 70.400902][ T5982] RBP: ffff8880256ebf90 R08: ffffffff90331ff7 R09: 1ffffffff20663fe [ 70.411375][ T5982] R10: dffffc0000000000 R11: fffffbfff20663ff R12: ffff88807c511840 [ 70.420036][ T5982] R13: ffff88807c511810 R14: 0000000000000000 R15: ffff88807c511800 [ 70.428265][ T5982] FS: 000055556fc1c500(0000) GS:ffff888125224000(0000) knlGS:0000000000000000 [ 70.437909][ T5982] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.444641][ T5982] CR2: 00007f0384616088 CR3: 000000007c2be000 CR4: 00000000003526f0 [ 70.453054][ T5982] Kernel panic - not syncing: Fatal exception [ 70.459721][ T5982] Kernel Offset: disabled [ 70.464056][ T5982] Rebooting in 86400 seconds..