last executing test programs: 368.413675ms ago: executing program 3 (id=424): setitimer(0x0, &(0x7f0000000000), 0x0) 359.083323ms ago: executing program 3 (id=429): syz_open_dev$video4linux(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$video4linux(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$video4linux(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$video4linux(&(0x7f0000000100), 0x0, 0x800) syz_open_dev$video4linux(&(0x7f0000000140), 0x1, 0x0) syz_open_dev$video4linux(&(0x7f0000000180), 0x1, 0x1) syz_open_dev$video4linux(&(0x7f00000001c0), 0x1, 0x2) syz_open_dev$video4linux(&(0x7f0000000200), 0x1, 0x800) syz_open_dev$video4linux(&(0x7f0000000240), 0x2, 0x0) syz_open_dev$video4linux(&(0x7f0000000280), 0x2, 0x1) syz_open_dev$video4linux(&(0x7f00000002c0), 0x2, 0x2) syz_open_dev$video4linux(&(0x7f0000000300), 0x2, 0x800) syz_open_dev$video4linux(&(0x7f0000000340), 0x3, 0x0) syz_open_dev$video4linux(&(0x7f0000000380), 0x3, 0x1) syz_open_dev$video4linux(&(0x7f00000003c0), 0x3, 0x2) syz_open_dev$video4linux(&(0x7f0000000400), 0x3, 0x800) syz_open_dev$video4linux(&(0x7f0000000440), 0x4, 0x0) syz_open_dev$video4linux(&(0x7f0000000480), 0x4, 0x1) syz_open_dev$video4linux(&(0x7f00000004c0), 0x4, 0x2) syz_open_dev$video4linux(&(0x7f0000000500), 0x4, 0x800) 292.400494ms ago: executing program 3 (id=435): 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) 221.212274ms ago: executing program 3 (id=439): rt_sigsuspend(&(0x7f0000000000), 0x0) 220.813773ms ago: executing program 1 (id=441): pkey_mprotect(0x0, 0x0, 0x0, 0xffffffffffffffff) 220.647528ms ago: executing program 3 (id=442): mlock(0x0, 0x0) 208.90912ms ago: executing program 1 (id=445): munlock(0x0, 0x0) 204.235305ms ago: executing program 0 (id=446): openat2(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000000), 0x0) 203.995191ms ago: executing program 3 (id=447): socket$inet_dccp(0x2, 0x6, 0x0) 148.915906ms ago: executing program 2 (id=448): lsm_list_modules(&(0x7f0000000000), &(0x7f0000000000), 0x0) 148.531914ms ago: executing program 0 (id=450): syz_open_dev$swradio(&(0x7f0000000040), 0x0, 0x0) syz_open_dev$swradio(&(0x7f0000000080), 0x0, 0x1) syz_open_dev$swradio(&(0x7f00000000c0), 0x0, 0x2) syz_open_dev$swradio(&(0x7f0000000100), 0x0, 0x800) 148.46688ms ago: executing program 1 (id=451): iopl(0x0) 148.371939ms ago: executing program 2 (id=452): tgkill(0x0, 0x0, 0x0) 148.327459ms ago: executing program 2 (id=453): map_shadow_stack(0x0, 0x0, 0x0) 148.214741ms ago: executing program 4 (id=454): mq_getsetattr(0xffffffffffffffff, &(0x7f0000000000), 0x0) 138.024405ms ago: executing program 0 (id=455): pwritev(0xffffffffffffffff, &(0x7f0000000000), 0x0, 0x0, 0x0) 132.068891ms ago: executing program 1 (id=456): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ttynull', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ttynull', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ttynull', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ttynull', 0x800, 0x0) 85.253489ms ago: executing program 4 (id=457): socket$inet_smc(0x2b, 0x1, 0x0) 85.063614ms ago: executing program 4 (id=458): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/debug/damon/kdamond_pid', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/sys/kernel/debug/damon/kdamond_pid', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/sys/kernel/debug/damon/kdamond_pid', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/sys/kernel/debug/damon/kdamond_pid', 0x800, 0x0) 84.980567ms ago: executing program 0 (id=459): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ptp0', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ptp0', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/ptp0', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ptp0', 0x800, 0x0) 84.878676ms ago: executing program 2 (id=460): openat(0xffffffffffffff9c, &(0x7f0000000040)='/sys/fs/smackfs/syslog', 0x2, 0x0) 65.660215ms ago: executing program 2 (id=461): setfsgid(0x0) 59.04024ms ago: executing program 1 (id=462): openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/thread-self', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='/proc/thread-self', 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/thread-self', 0x2, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='/proc/thread-self', 0x800, 0x0) 13.262202ms ago: executing program 0 (id=463): clone(0x0, &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000), &(0x7f0000000000)) exit(0x0) 12.64102ms ago: executing program 4 (id=464): openat(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/status', 0x0, 0x0) 12.48931ms ago: executing program 4 (id=465): openat(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv4/vs/sync_qlen_max', 0x2, 0x0) 12.329437ms ago: executing program 2 (id=466): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/cuse', 0x2, 0x0) 12.196363ms ago: executing program 1 (id=467): flistxattr(0xffffffffffffffff, &(0x7f0000000000), 0x0) 6.759573ms ago: executing program 0 (id=468): openat(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/context', 0x2, 0x0) 0s ago: executing program 4 (id=469): openat(0xffffffffffffff9c, &(0x7f0000000040)='/dev/video36', 0x2, 0x0) kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.0.250' (ED25519) to the list of known hosts. [ 64.844954][ T5830] cgroup: Unknown subsys name 'net' [ 64.953209][ T5830] cgroup: Unknown subsys name 'cpuset' [ 64.962185][ T5830] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 66.360290][ T5830] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 71.427524][ T1316] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.442599][ T1316] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.469092][ T6195] mmap: syz.1.338 (6195) uses deprecated remap_file_pages() syscall. See Documentation/mm/remap_file_pages.rst. [ 72.595337][ T6329] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000046: 0000 [#1] SMP KASAN PTI [ 72.607306][ T6329] KASAN: null-ptr-deref in range [0x0000000000000230-0x0000000000000237] [ 72.615829][ T6329] CPU: 1 UID: 0 PID: 6329 Comm: syz.2.466 Not tainted syzkaller #0 PREEMPT(full) [ 72.625030][ T6329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 72.635188][ T6329] RIP: 0010:fuse_dev_alloc_install+0x39/0x80 [ 72.641220][ T6329] Code: e8 bc f8 ff ff 48 89 c3 48 85 c0 74 47 e8 1f 8f 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 ac b7 e9 fe 49 8b 96 30 02 00 00 49 c7 86 30 [ 72.660919][ T6329] RSP: 0018:ffffc90004687710 EFLAGS: 00010202 [ 72.666978][ T6329] RAX: 0000000000000046 RBX: ffff88807fb30100 RCX: dffffc0000000000 [ 72.674934][ T6329] RDX: 0000000000000000 RSI: ffffffff8dfcc8a2 RDI: 0000000000000230 [ 72.682907][ T6329] RBP: ffff888032b76690 R08: ffffffff9032d7f7 R09: 1ffffffff2065afe [ 72.690863][ T6329] R10: dffffc0000000000 R11: fffffbfff2065aff R12: ffff888028eee840 [ 72.698846][ T6329] R13: ffff888028eee810 R14: 0000000000000000 R15: ffff888028eee800 [ 72.706812][ T6329] FS: 0000555577baa500(0000) GS:ffff888125334000(0000) knlGS:0000000000000000 [ 72.715812][ T6329] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.722380][ T6329] CR2: 00007fdc59f456b8 CR3: 0000000077508000 CR4: 00000000003526f0 [ 72.730350][ T6329] Call Trace: [ 72.733615][ T6329] [ 72.736536][ T6329] cuse_channel_open+0x107/0x7c0 [ 72.741469][ T6329] ? __pfx_cuse_channel_open+0x10/0x10 [ 72.746918][ T6329] misc_open+0x2d5/0x350 [ 72.751238][ T6329] chrdev_open+0x4cd/0x5e0 [ 72.755640][ T6329] ? __pfx_chrdev_open+0x10/0x10 [ 72.760568][ T6329] ? fsnotify_open_perm_and_set_mode+0x135/0x6d0 [ 72.766881][ T6329] ? __pfx_chrdev_open+0x10/0x10 [ 72.771907][ T6329] do_dentry_open+0x785/0x14e0 [ 72.776671][ T6329] vfs_open+0x3b/0x340 [ 72.780939][ T6329] ? path_openat+0x2df0/0x3860 [ 72.785862][ T6329] path_openat+0x2e08/0x3860 [ 72.790627][ T6329] ? __pfx_stack_trace_save+0x10/0x10 [ 72.795995][ T6329] ? stack_depot_save_flags+0x33/0x810 [ 72.801446][ T6329] ? __pfx_path_openat+0x10/0x10 [ 72.806379][ T6329] ? __x64_sys_openat+0x138/0x170 [ 72.811473][ T6329] ? __lock_acquire+0x6b5/0x2cf0 [ 72.816663][ T6329] do_file_open+0x23e/0x4a0 [ 72.821238][ T6329] ? __pfx_do_file_open+0x10/0x10 [ 72.826250][ T6329] ? _raw_spin_unlock+0x28/0x50 [ 72.831136][ T6329] ? alloc_fd+0x64b/0x6c0 [ 72.835454][ T6329] do_sys_openat2+0x113/0x200 [ 72.840118][ T6329] ? __pfx_do_sys_openat2+0x10/0x10 [ 72.845299][ T6329] ? exc_page_fault+0x6a/0xc0 [ 72.849959][ T6329] ? do_user_addr_fault+0xc6f/0x1340 [ 72.855232][ T6329] __x64_sys_openat+0x138/0x170 [ 72.860078][ T6329] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 72.866138][ T6329] do_syscall_64+0x15f/0xf80 [ 72.870716][ T6329] ? trace_irq_disable+0x3b/0x140 [ 72.875743][ T6329] ? clear_bhb_loop+0x40/0x90 [ 72.880403][ T6329] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 72.886277][ T6329] RIP: 0033:0x7f4edeb9c819 [ 72.890689][ T6329] 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 [ 72.910282][ T6329] RSP: 002b:00007ffe8a678a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 72.918777][ T6329] RAX: ffffffffffffffda RBX: 00007f4edee15fa0 RCX: 00007f4edeb9c819 [ 72.926732][ T6329] RDX: 0000000000000002 RSI: 0000200000000040 RDI: ffffffffffffff9c [ 72.934688][ T6329] RBP: 00007f4edec32c91 R08: 0000000000000000 R09: 0000000000000000 [ 72.942657][ T6329] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 72.950698][ T6329] R13: 00007f4edee15fac R14: 00007f4edee15fa0 R15: 00007f4edee15fa0 [ 72.958697][ T6329] [ 72.961799][ T6329] Modules linked in: [ 72.965872][ T6329] ---[ end trace 0000000000000000 ]--- SYZFAIL: failed to recv rpc fd=3 want=4 recv=0 n=0 (errno 9: Bad file descriptor) [ 73.361621][ T6329] RIP: 0010:fuse_dev_alloc_install+0x39/0x80 [ 73.383658][ T6329] Code: e8 bc f8 ff ff 48 89 c3 48 85 c0 74 47 e8 1f 8f 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 ac b7 e9 fe 49 8b 96 30 02 00 00 49 c7 86 30 [ 73.406472][ T6329] RSP: 0018:ffffc90004687710 EFLAGS: 00010202 [ 73.421269][ T6329] RAX: 0000000000000046 RBX: ffff88807fb30100 RCX: dffffc0000000000 [ 73.429543][ T6329] RDX: 0000000000000000 RSI: ffffffff8dfcc8a2 RDI: 0000000000000230 [ 73.512795][ T6329] RBP: ffff888032b76690 R08: ffffffff9032d7f7 R09: 1ffffffff2065afe [ 73.530027][ T6329] R10: dffffc0000000000 R11: fffffbfff2065aff R12: ffff888028eee840 [ 73.557224][ T6329] R13: ffff888028eee810 R14: 0000000000000000 R15: ffff888028eee800 [ 73.579312][ T6329] FS: 0000555577baa500(0000) GS:ffff888125334000(0000) knlGS:0000000000000000 [ 73.597831][ T6329] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.627340][ T6329] CR2: 0000558a6b0a30a0 CR3: 0000000077508000 CR4: 00000000003526f0 [ 73.662816][ T6329] Kernel panic - not syncing: Fatal exception [ 73.669421][ T6329] Kernel Offset: disabled [ 73.673741][ T6329] Rebooting in 86400 seconds..