last executing test programs: 550.711147ms ago: executing program 2 (id=67): fremovexattr(0xffffffffffffffff, &(0x7f0000000000)) 550.215027ms ago: executing program 2 (id=73): msgget(0xffffffffffffffff, 0x0) 502.620842ms ago: executing program 2 (id=77): syz_init_net_socket$nfc_raw(0x27, 0x3, 0x0) 501.102931ms ago: executing program 2 (id=82): mq_unlink(&(0x7f0000000000)) 440.717942ms ago: executing program 2 (id=87): quotactl$Q_GETFMT(0x0, &(0x7f0000000000), 0x0, &(0x7f0000000000)) 396.098111ms ago: executing program 2 (id=94): rt_sigreturn() 158.68134ms ago: executing program 4 (id=127): eventfd2(0x0, 0x0) 157.835463ms ago: executing program 4 (id=131): tgkill(0x0, 0x0, 0x0) 157.315695ms ago: executing program 0 (id=132): setfsgid(0x0) 143.498092ms ago: executing program 1 (id=133): syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0) 143.344681ms ago: executing program 3 (id=134): request_key(&(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), 0x0) 139.602811ms ago: executing program 4 (id=135): openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/thread-self/attr/current', 0x2, 0x0) 132.062479ms ago: executing program 0 (id=136): landlock_create_ruleset(&(0x7f0000000000), 0x0, 0x0) 78.750119ms ago: executing program 3 (id=137): stat(&(0x7f0000000000), &(0x7f0000000000)) 78.624271ms ago: executing program 4 (id=138): socket$key(0xf, 0x3, 0x2) 78.381614ms ago: executing program 0 (id=139): lstat(&(0x7f0000000000), &(0x7f0000000000)) 78.169728ms ago: executing program 1 (id=140): socket$nl_crypto(0x10, 0x3, 0x15) 78.075873ms ago: executing program 3 (id=141): syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) 77.937393ms ago: executing program 1 (id=142): getrlimit(0x0, &(0x7f0000000000)) 77.889718ms ago: executing program 0 (id=143): setfsuid(0x0) 66.044873ms ago: executing program 1 (id=144): fallocate(0xffffffffffffffff, 0x0, 0x0, 0x0) 62.270037ms ago: executing program 3 (id=145): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vcsu', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/vcsu', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/vcsu', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/vcsu', 0x800, 0x0) 62.107148ms ago: executing program 4 (id=146): socket$alg(0x26, 0x5, 0x0) 6.813708ms ago: executing program 0 (id=147): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/mISDNtimer', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/mISDNtimer', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/mISDNtimer', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/mISDNtimer', 0x800, 0x0) 6.368736ms ago: executing program 4 (id=148): syz_open_dev$evdev(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$evdev(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$evdev(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$evdev(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$evdev(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$evdev(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$evdev(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$evdev(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$evdev(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$evdev(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$evdev(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$evdev(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$evdev(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$evdev(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$evdev(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$evdev(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$evdev(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$evdev(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$evdev(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$evdev(&(0x7f0000000500), 0x4, 0x800) 6.283218ms ago: executing program 1 (id=149): signalfd4(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 6.167987ms ago: executing program 3 (id=150): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/video37', 0x2, 0x0) 6.094132ms ago: executing program 0 (id=151): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/input/mice', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/input/mice', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/input/mice', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/input/mice', 0x800, 0x0) 6.051398ms ago: executing program 3 (id=152): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/cuse', 0x2, 0x0) 0s ago: executing program 1 (id=153): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/socket/zygote', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/socket/zygote', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/socket/zygote', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/socket/zygote', 0x800, 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.1.179' (ED25519) to the list of known hosts. syzkaller login: [ 47.652539][ T5212] cgroup: Unknown subsys name 'net' [ 47.783271][ T5212] cgroup: Unknown subsys name 'cpuset' [ 47.791111][ T5212] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 49.118885][ T5212] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 52.042706][ T5387] Oops: general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] PREEMPT SMP KASAN PTI [ 52.055884][ T5387] KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f] [ 52.064338][ T5387] CPU: 0 UID: 0 PID: 5387 Comm: syz.3.152 Not tainted 6.11.0-rc7-next-20240913-syzkaller #0 [ 52.074455][ T5387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 52.084552][ T5387] RIP: 0010:fuse_get_req+0x699/0xd40 [ 52.089912][ T5387] Code: 24 50 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 d5 d1 e9 fe 48 8b 1b 48 83 c3 58 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 b8 d1 e9 fe 48 8b 1b 81 e3 00 20 [ 52.109727][ T5387] RSP: 0018:ffffc900043074c0 EFLAGS: 00010202 [ 52.115880][ T5387] RAX: 000000000000000b RBX: 0000000000000058 RCX: ffffffff8314a332 [ 52.123849][ T5387] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff888026c67030 [ 52.131834][ T5387] RBP: ffffc900043075e8 R08: ffff888026c67037 R09: 1ffff11004d8ce06 [ 52.139827][ T5387] R10: dffffc0000000000 R11: ffffed1004d8ce07 R12: ffff888026c67000 [ 52.147851][ T5387] R13: dffffc0000000000 R14: ffff888078c1d840 R15: ffff888026c67000 [ 52.155853][ T5387] FS: 000055558980d500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 52.164806][ T5387] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.171417][ T5387] CR2: 00007fcb93d07040 CR3: 0000000011f58000 CR4: 00000000003506f0 [ 52.179508][ T5387] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.187515][ T5387] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.195479][ T5387] Call Trace: [ 52.198762][ T5387] [ 52.201800][ T5387] ? __die_body+0x5f/0xb0 [ 52.206135][ T5387] ? die_addr+0xb0/0xe0 [ 52.210341][ T5387] ? exc_general_protection+0x3dd/0x5d0 [ 52.216036][ T5387] ? asm_exc_general_protection+0x26/0x30 [ 52.221771][ T5387] ? fuse_get_req+0x602/0xd40 [ 52.226452][ T5387] ? fuse_get_req+0x699/0xd40 [ 52.231130][ T5387] ? __pfx_fuse_get_req+0x10/0x10 [ 52.236154][ T5387] fuse_simple_background+0x9d/0xb10 [ 52.241461][ T5387] ? __kmalloc_cache_noprof+0x19c/0x2c0 [ 52.247045][ T5387] cuse_channel_open+0x447/0x670 [ 52.252019][ T5387] ? __pfx_cuse_channel_open+0x10/0x10 [ 52.257488][ T5387] misc_open+0x2cc/0x340 [ 52.261733][ T5387] chrdev_open+0x521/0x600 [ 52.266143][ T5387] ? __pfx_apparmor_file_open+0x10/0x10 [ 52.271694][ T5387] ? __pfx_chrdev_open+0x10/0x10 [ 52.276644][ T5387] ? security_file_open+0x513/0x990 [ 52.281850][ T5387] ? __pfx_chrdev_open+0x10/0x10 [ 52.286838][ T5387] do_dentry_open+0x978/0x1460 [ 52.291617][ T5387] vfs_open+0x3e/0x330 [ 52.295680][ T5387] path_openat+0x2cb5/0x3b40 [ 52.300262][ T5387] ? mark_lock+0x9a/0x360 [ 52.304843][ T5387] ? __pfx_stack_trace_save+0x10/0x10 [ 52.310231][ T5387] ? __pfx_path_openat+0x10/0x10 [ 52.315177][ T5387] ? __lock_acquire+0x1384/0x2050 [ 52.320334][ T5387] do_filp_open+0x235/0x490 [ 52.324935][ T5387] ? __pfx_do_filp_open+0x10/0x10 [ 52.330043][ T5387] ? _raw_spin_unlock+0x28/0x50 [ 52.334888][ T5387] ? alloc_fd+0x5a1/0x640 [ 52.339321][ T5387] do_sys_openat2+0x13e/0x1d0 [ 52.344241][ T5387] ? __pfx_do_sys_openat2+0x10/0x10 [ 52.349454][ T5387] __x64_sys_openat+0x247/0x2a0 [ 52.354308][ T5387] ? __pfx___x64_sys_openat+0x10/0x10 [ 52.359760][ T5387] ? exc_page_fault+0x590/0x8c0 [ 52.364659][ T5387] ? do_syscall_64+0xb6/0x230 [ 52.369330][ T5387] do_syscall_64+0xf3/0x230 [ 52.373913][ T5387] ? clear_bhb_loop+0x35/0x90 [ 52.378617][ T5387] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 52.384539][ T5387] RIP: 0033:0x7fcb93d7def9 [ 52.388973][ T5387] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 52.408764][ T5387] RSP: 002b:00007ffec55502d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 52.417359][ T5387] RAX: ffffffffffffffda RBX: 00007fcb93f35f80 RCX: 00007fcb93d7def9 [ 52.425386][ T5387] RDX: 0000000000000002 RSI: 0000000020000040 RDI: ffffffffffffff9c [ 52.433470][ T5387] RBP: 00007fcb93df0b76 R08: 0000000000000000 R09: 0000000000000000 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 52.441433][ T5387] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 52.449409][ T5387] R13: 00007fcb93f35f80 R14: 00007fcb93f35f80 R15: 0000000000000b44 [ 52.457556][ T5387] [ 52.460566][ T5387] Modules linked in: [ 52.464815][ T5387] ---[ end trace 0000000000000000 ]--- [ 52.489547][ T5387] RIP: 0010:fuse_get_req+0x699/0xd40 [ 52.495099][ T5387] Code: 24 50 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 d5 d1 e9 fe 48 8b 1b 48 83 c3 58 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 b8 d1 e9 fe 48 8b 1b 81 e3 00 20 [ 52.516435][ T5387] RSP: 0018:ffffc900043074c0 EFLAGS: 00010202 [ 52.526307][ T5387] RAX: 000000000000000b RBX: 0000000000000058 RCX: ffffffff8314a332 [ 52.535047][ T5387] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff888026c67030 [ 52.543143][ T5387] RBP: ffffc900043075e8 R08: ffff888026c67037 R09: 1ffff11004d8ce06 [ 52.556097][ T5387] R10: dffffc0000000000 R11: ffffed1004d8ce07 R12: ffff888026c67000 [ 52.564780][ T5387] R13: dffffc0000000000 R14: ffff888078c1d840 R15: ffff888026c67000 [ 52.573099][ T5387] FS: 000055558980d500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 52.586552][ T5387] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.595303][ T5387] CR2: 0000555646cf70b8 CR3: 0000000011f58000 CR4: 00000000003506f0 [ 52.603678][ T5387] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.652476][ T5328] coredump: 25(syz.2.94): interrupted: fatal signal pending [ 52.661681][ T5387] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.672090][ T5328] coredump: 25(syz.2.94): written to core: VMAs: 17, size 53436416; core: 12328912 bytes, pos 24473600 [ 52.672678][ T5387] Kernel panic - not syncing: Fatal exception [ 52.683563][ T5387] Kernel Offset: disabled