last executing test programs: 283.981708ms ago: executing program 1 (id=167): syz_open_dev$ndb(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$ndb(&(0x7f0000000100), 0x0, 0x800) 237.187392ms ago: executing program 1 (id=171): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/virtual_nci', 0x2, 0x0) 188.828857ms ago: executing program 4 (id=176): semget(0xffffffffffffffff, 0x0, 0x0) 188.409184ms ago: executing program 0 (id=177): socket$unix(0x1, 0x1, 0x0) 188.161782ms ago: executing program 2 (id=178): fchmodat(0xffffffffffffffff, &(0x7f0000000000), 0x0) 187.930775ms ago: executing program 4 (id=180): socket$inet_dccp(0x2, 0x6, 0x0) 187.825461ms ago: executing program 0 (id=181): kcmp(0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) 186.645098ms ago: executing program 1 (id=182): 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) 179.452274ms ago: executing program 2 (id=183): futex(&(0x7f0000000000), 0x0, 0x0, &(0x7f0000000000), &(0x7f0000000000), 0x0) 120.15144ms ago: executing program 0 (id=185): socket(0x1e, 0x2, 0x0) 119.948693ms ago: executing program 4 (id=186): vmsplice(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0) 119.8739ms ago: executing program 2 (id=187): quotactl$Q_GETFMT(0x0, &(0x7f0000000000), 0x0, &(0x7f0000000000)) 119.662293ms ago: executing program 3 (id=188): socket$isdn_base(0x22, 0x3, 0x0) 119.154431ms ago: executing program 1 (id=189): syz_init_net_socket$802154_raw(0x24, 0x3, 0x0) 119.057713ms ago: executing program 4 (id=190): getgid() 118.985334ms ago: executing program 2 (id=191): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/access', 0x2, 0x0) 72.824797ms ago: executing program 3 (id=192): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/i915', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/i915', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/i915', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/i915', 0x800, 0x0) 72.654477ms ago: executing program 0 (id=193): rt_sigsuspend(&(0x7f0000000000), 0x0) 72.609739ms ago: executing program 4 (id=194): clone(0x0, &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000)) exit(0x0) 72.435403ms ago: executing program 1 (id=195): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/class/mac80211_hwsim/', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/sys/class/mac80211_hwsim/', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/class/mac80211_hwsim/', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/sys/class/mac80211_hwsim/', 0x800, 0x0) 71.77964ms ago: executing program 2 (id=196): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/unconfined', 0x2, 0x0) 71.654417ms ago: executing program 0 (id=197): syz_open_dev$loop(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$loop(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$loop(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$loop(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$loop(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$loop(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$loop(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$loop(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$loop(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$loop(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$loop(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$loop(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$loop(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$loop(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$loop(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$loop(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$loop(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$loop(&(0x7f0000000500), 0x4, 0x800) 71.49063ms ago: executing program 3 (id=198): shmdt(0x0) 70.259838ms ago: executing program 4 (id=199): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/vhost-net', 0x2, 0x0) 56.795873ms ago: executing program 1 (id=200): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/cuse', 0x2, 0x0) 44.880185ms ago: executing program 3 (id=201): mincore(0x0, 0x0, &(0x7f0000000000)) 879.77µs ago: executing program 2 (id=202): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/video36', 0x2, 0x0) 414.585µs ago: executing program 0 (id=203): socket$inet_icmp(0x2, 0x2, 0x1) 192.308µs ago: executing program 3 (id=204): io_destroy(0x0) 0s ago: executing program 3 (id=205): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/nvme-fabrics', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/nvme-fabrics', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/nvme-fabrics', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvme-fabrics', 0x800, 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.0.88' (ED25519) to the list of known hosts. syzkaller login: [ 50.296301][ T5213] cgroup: Unknown subsys name 'net' [ 50.431160][ T5213] cgroup: Unknown subsys name 'cpuset' [ 50.439393][ T5213] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 51.787803][ T5213] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 55.200281][ T5438] Oops: general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] PREEMPT SMP KASAN PTI [ 55.213115][ T5438] KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f] [ 55.221558][ T5438] CPU: 1 UID: 0 PID: 5438 Comm: syz.1.200 Not tainted 6.11.0-rc7-next-20240912-syzkaller #0 [ 55.231982][ T5438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 55.242059][ T5438] RIP: 0010:fuse_get_req+0x699/0xd40 SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 55.247390][ T5438] 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 f5 d0 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 d8 d0 e9 fe 48 8b 1b 81 e3 00 20 [ 55.267545][ T5438] RSP: 0018:ffffc90003fef4c0 EFLAGS: 00010202 [ 55.273726][ T5438] RAX: 000000000000000b RBX: 0000000000000058 RCX: ffffffff83149a52 [ 55.281722][ T5438] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff888027181030 [ 55.289729][ T5438] RBP: ffffc90003fef5e8 R08: ffff888027181037 R09: 1ffff11004e30206 [ 55.297803][ T5438] R10: dffffc0000000000 R11: ffffed1004e30207 R12: ffff888027181000 [ 55.305803][ T5438] R13: dffffc0000000000 R14: ffff88807b835840 R15: ffff888027181000 [ 55.313884][ T5438] FS: 000055556da20500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 55.323009][ T5438] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.324536][ T5434] coredump: 47(syz.4.194): interrupted: fatal signal pending [ 55.329602][ T5438] CR2: 00007ff9fa307040 CR3: 0000000079296000 CR4: 00000000003506f0 [ 55.329618][ T5438] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.329629][ T5438] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.329641][ T5438] Call Trace: [ 55.329649][ T5438] [ 55.354431][ T5434] coredump: 47(syz.4.194): written to core: VMAs: 17, size 53436416; core: 2805586 bytes, pos 3067904 [ 55.361391][ T5438] ? __die_body+0x5f/0xb0 [ 55.361415][ T5438] ? die_addr+0xb0/0xe0 [ 55.361430][ T5438] ? exc_general_protection+0x3dd/0x5d0 [ 55.361455][ T5438] ? asm_exc_general_protection+0x26/0x30 [ 55.361479][ T5438] ? fuse_get_req+0x602/0xd40 [ 55.361499][ T5438] ? fuse_get_req+0x699/0xd40 [ 55.361520][ T5438] ? __pfx_fuse_get_req+0x10/0x10 [ 55.361545][ T5438] fuse_simple_background+0x9d/0xb10 [ 55.418514][ T5438] ? __kmalloc_cache_noprof+0x19c/0x2c0 [ 55.424092][ T5438] cuse_channel_open+0x447/0x670 [ 55.429060][ T5438] ? __pfx_cuse_channel_open+0x10/0x10 [ 55.434560][ T5438] misc_open+0x2cc/0x340 [ 55.438841][ T5438] chrdev_open+0x521/0x600 [ 55.443546][ T5438] ? __pfx_apparmor_file_open+0x10/0x10 [ 55.449126][ T5438] ? __pfx_chrdev_open+0x10/0x10 [ 55.454095][ T5438] ? security_file_open+0x513/0x990 [ 55.459409][ T5438] ? __pfx_chrdev_open+0x10/0x10 [ 55.464375][ T5438] do_dentry_open+0x978/0x1460 [ 55.469376][ T5438] vfs_open+0x3e/0x330 [ 55.473476][ T5438] path_openat+0x2cb5/0x3b40 [ 55.478103][ T5438] ? mark_lock+0x9a/0x360 [ 55.482457][ T5438] ? __pfx_stack_trace_save+0x10/0x10 [ 55.487858][ T5438] ? __pfx_path_openat+0x10/0x10 [ 55.492827][ T5438] ? __lock_acquire+0x1384/0x2050 [ 55.497923][ T5438] do_filp_open+0x235/0x490 [ 55.502634][ T5438] ? __pfx_do_filp_open+0x10/0x10 [ 55.507787][ T5438] ? _raw_spin_unlock+0x28/0x50 [ 55.512715][ T5438] ? alloc_fd+0x5a1/0x640 [ 55.517151][ T5438] do_sys_openat2+0x13e/0x1d0 [ 55.521873][ T5438] ? __pfx_do_sys_openat2+0x10/0x10 [ 55.527128][ T5438] __x64_sys_openat+0x247/0x2a0 [ 55.532009][ T5438] ? __pfx___x64_sys_openat+0x10/0x10 [ 55.537418][ T5438] ? exc_page_fault+0x590/0x8c0 [ 55.542472][ T5438] ? do_syscall_64+0xb6/0x230 [ 55.547212][ T5438] do_syscall_64+0xf3/0x230 [ 55.551925][ T5438] ? clear_bhb_loop+0x35/0x90 [ 55.556717][ T5438] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 55.562638][ T5438] RIP: 0033:0x7ff9fa37def9 [ 55.567213][ T5438] 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 [ 55.587059][ T5438] RSP: 002b:00007fffbadbdaa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 55.595608][ T5438] RAX: ffffffffffffffda RBX: 00007ff9fa535f80 RCX: 00007ff9fa37def9 [ 55.603608][ T5438] RDX: 0000000000000002 RSI: 0000000020000040 RDI: ffffffffffffff9c [ 55.611776][ T5438] RBP: 00007ff9fa3f0b76 R08: 0000000000000000 R09: 0000000000000000 [ 55.619769][ T5438] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 55.627942][ T5438] R13: 00007ff9fa535f80 R14: 00007ff9fa535f80 R15: 0000000000000b44 [ 55.636293][ T5438] [ 55.639329][ T5438] Modules linked in: [ 55.643638][ T5438] ---[ end trace 0000000000000000 ]--- [ 55.684538][ T5438] RIP: 0010:fuse_get_req+0x699/0xd40 [ 55.693581][ T5438] 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 f5 d0 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 d8 d0 e9 fe 48 8b 1b 81 e3 00 20 [ 55.718995][ T5438] RSP: 0018:ffffc90003fef4c0 EFLAGS: 00010202 [ 55.739562][ T5438] RAX: 000000000000000b RBX: 0000000000000058 RCX: ffffffff83149a52 [ 55.748990][ T5438] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff888027181030 [ 55.757730][ T5438] RBP: ffffc90003fef5e8 R08: ffff888027181037 R09: 1ffff11004e30206 [ 55.765854][ T5438] R10: dffffc0000000000 R11: ffffed1004e30207 R12: ffff888027181000 [ 55.783881][ T5438] R13: dffffc0000000000 R14: ffff88807b835840 R15: ffff888027181000 [ 55.792415][ T5438] FS: 000055556da20500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 55.801641][ T5438] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.808315][ T5438] CR2: 000055e8d04790b8 CR3: 0000000079296000 CR4: 00000000003506f0 [ 55.816316][ T5438] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.824731][ T5438] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.833253][ T5438] Kernel panic - not syncing: Fatal exception [ 55.839722][ T5438] Kernel Offset: disabled [ 55.844395][ T5438] Rebooting in 86400 seconds..