forked to background, child pid 5504 no interfaces have a carrier [ 65.557939][ T5505] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.600126][ T5505] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.223' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 97.099538][ T52] cfg80211: failed to load regulatory.db executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 111.002864][ T9131] ================================================================== [ 111.011144][ T9131] BUG: KASAN: slab-use-after-free in dvb_device_open+0x36a/0x3b0 [ 111.018922][ T9131] Read of size 8 at addr ffff8881412e5c18 by task syz-executor286/9131 [ 111.027191][ T9131] [ 111.029555][ T9131] CPU: 0 UID: 0 PID: 9131 Comm: syz-executor286 Not tainted 6.15.0-rc1-syzkaller-00246-g900241a5cc15 #0 PREEMPT(full) [ 111.029590][ T9131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 111.029614][ T9131] Call Trace: [ 111.029625][ T9131] [ 111.029639][ T9131] dump_stack_lvl+0x116/0x1f0 [ 111.029683][ T9131] print_report+0xc3/0x670 [ 111.029725][ T9131] ? __virt_addr_valid+0x5e/0x590 [ 111.029769][ T9131] ? __phys_addr+0xc6/0x150 [ 111.029807][ T9131] ? dvb_device_open+0x36a/0x3b0 [ 111.029832][ T9131] kasan_report+0xe0/0x110 [ 111.029855][ T9131] ? dvb_device_open+0x36a/0x3b0 [ 111.029884][ T9131] ? __pfx_dvb_device_open+0x10/0x10 [ 111.029909][ T9131] dvb_device_open+0x36a/0x3b0 [ 111.029934][ T9131] ? __pfx_dvb_device_open+0x10/0x10 [ 111.029959][ T9131] chrdev_open+0x231/0x6a0 [ 111.029998][ T9131] ? __pfx_apparmor_file_open+0x10/0x10 [ 111.030036][ T9131] ? __pfx_chrdev_open+0x10/0x10 [ 111.030083][ T9131] ? file_set_fsnotify_mode_from_watchers+0x163/0x640 [ 111.030125][ T9131] do_dentry_open+0x741/0x1c10 [ 111.030162][ T9131] ? __pfx_chrdev_open+0x10/0x10 [ 111.030205][ T9131] vfs_open+0x82/0x3f0 [ 111.030232][ T9131] path_openat+0x1e5e/0x2d40 [ 111.030276][ T9131] ? __pfx_path_openat+0x10/0x10 [ 111.030318][ T9131] do_filp_open+0x20b/0x470 [ 111.030356][ T9131] ? __pfx_do_filp_open+0x10/0x10 [ 111.030406][ T9131] ? alloc_fd+0x471/0x7d0 [ 111.030446][ T9131] do_sys_openat2+0x11b/0x1d0 [ 111.030473][ T9131] ? __pfx_do_sys_openat2+0x10/0x10 [ 111.030503][ T9131] ? rcu_is_watching+0x12/0xc0 [ 111.030538][ T9131] __x64_sys_openat+0x174/0x210 [ 111.030566][ T9131] ? __pfx___x64_sys_openat+0x10/0x10 [ 111.030621][ T9131] do_syscall_64+0xcd/0x260 [ 111.030661][ T9131] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 111.030688][ T9131] RIP: 0033:0x7f6ae2b5eb69 [ 111.030712][ T9131] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 111.030739][ T9131] RSP: 002b:00007ffe062c8c58 EFLAGS: 00000206 ORIG_RAX: 0000000000000101 [ 111.030762][ T9131] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6ae2b5eb69 [ 111.030780][ T9131] RDX: 0000000000000001 RSI: 0000200000000000 RDI: ffffffffffffff9c [ 111.030796][ T9131] RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 [ 111.030812][ T9131] R10: 0000000000000000 R11: 0000000000000206 R12: 000000000001b145 [ 111.030828][ T9131] R13: 00007ffe062c8c6c R14: 00007ffe062c8c80 R15: 00007ffe062c8c70 [ 111.030853][ T9131] [ 111.030862][ T9131] [ 111.279423][ T9131] Allocated by task 1: [ 111.283499][ T9131] kasan_save_stack+0x33/0x60 [ 111.288219][ T9131] kasan_save_track+0x14/0x30 [ 111.292941][ T9131] __kasan_kmalloc+0xaa/0xb0 [ 111.297573][ T9131] dvb_register_device+0x1e4/0x2370 [ 111.302916][ T9131] dvb_register_frontend+0x5a6/0x880 [ 111.308254][ T9131] vidtv_bridge_probe+0x459/0xa90 [ 111.313333][ T9131] platform_probe+0xff/0x1f0 [ 111.317966][ T9131] really_probe+0x23e/0xa90 [ 111.322509][ T9131] __driver_probe_device+0x1de/0x440 [ 111.327844][ T9131] driver_probe_device+0x4c/0x1b0 [ 111.333014][ T9131] __driver_attach+0x283/0x580 [ 111.337822][ T9131] bus_for_each_dev+0x13b/0x1d0 [ 111.342705][ T9131] bus_add_driver+0x2e9/0x690 [ 111.347424][ T9131] driver_register+0x15c/0x4b0 [ 111.352223][ T9131] vidtv_bridge_init+0x45/0x80 [ 111.357022][ T9131] do_one_initcall+0x120/0x6e0 [ 111.361825][ T9131] kernel_init_freeable+0x5c2/0x900 [ 111.367086][ T9131] kernel_init+0x1c/0x2b0 [ 111.371461][ T9131] ret_from_fork+0x45/0x80 [ 111.375911][ T9131] ret_from_fork_asm+0x1a/0x30 [ 111.380722][ T9131] [ 111.383057][ T9131] Freed by task 9129: [ 111.387061][ T9131] kasan_save_stack+0x33/0x60 [ 111.391773][ T9131] kasan_save_track+0x14/0x30 [ 111.396485][ T9131] kasan_save_free_info+0x3b/0x60 [ 111.401535][ T9131] __kasan_slab_free+0x51/0x70 [ 111.406338][ T9131] kfree+0x2b6/0x4d0 [ 111.410258][ T9131] dvb_device_put.part.0+0x60/0x90 [ 111.415382][ T9131] dvb_device_open+0x2a4/0x3b0 [ 111.420161][ T9131] chrdev_open+0x231/0x6a0 [ 111.424607][ T9131] do_dentry_open+0x741/0x1c10 [ 111.429399][ T9131] vfs_open+0x82/0x3f0 [ 111.433486][ T9131] path_openat+0x1e5e/0x2d40 [ 111.438108][ T9131] do_filp_open+0x20b/0x470 [ 111.442641][ T9131] do_sys_openat2+0x11b/0x1d0 [ 111.447341][ T9131] __x64_sys_openat+0x174/0x210 [ 111.452215][ T9131] do_syscall_64+0xcd/0x260 [ 111.456749][ T9131] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 111.462660][ T9131] [ 111.465013][ T9131] The buggy address belongs to the object at ffff8881412e5c00 [ 111.465013][ T9131] which belongs to the cache kmalloc-256 of size 256 [ 111.479083][ T9131] The buggy address is located 24 bytes inside of [ 111.479083][ T9131] freed 256-byte region [ffff8881412e5c00, ffff8881412e5d00) [ 111.492812][ T9131] [ 111.495172][ T9131] The buggy address belongs to the physical page: [ 111.501606][ T9131] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1412e4 [ 111.510579][ T9131] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 111.519087][ T9131] flags: 0x57ff00000000040(head|node=1|zone=2|lastcpupid=0x7ff) [ 111.526735][ T9131] page_type: f5(slab) [ 111.530730][ T9131] raw: 057ff00000000040 ffff88801b441b40 dead000000000122 0000000000000000 [ 111.539332][ T9131] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 111.547934][ T9131] head: 057ff00000000040 ffff88801b441b40 dead000000000122 0000000000000000 [ 111.556620][ T9131] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 111.565308][ T9131] head: 057ff00000000001 ffffea000504b901 00000000ffffffff 00000000ffffffff [ 111.573991][ T9131] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 111.582668][ T9131] page dumped because: kasan: bad access detected [ 111.589094][ T9131] page_owner tracks the page as allocated [ 111.594816][ T9131] page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 24564099529, free_ts 0 [ 111.614578][ T9131] post_alloc_hook+0x181/0x1b0 [ 111.619408][ T9131] get_page_from_freelist+0x1193/0x39b0 [ 111.625266][ T9131] __alloc_frozen_pages_noprof+0x263/0x23a0 [ 111.631192][ T9131] alloc_pages_mpol+0x1fb/0x550 [ 111.636069][ T9131] new_slab+0x23c/0x330 [ 111.640248][ T9131] ___slab_alloc+0xd9c/0x1940 [ 111.644951][ T9131] __slab_alloc.constprop.0+0x56/0xb0 [ 111.650349][ T9131] __kmalloc_cache_noprof+0xfb/0x3e0 [ 111.655683][ T9131] bus_add_driver+0x92/0x690 [ 111.660310][ T9131] driver_register+0x15c/0x4b0 [ 111.665089][ T9131] usb_register_driver+0x216/0x4d0 [ 111.670218][ T9131] do_one_initcall+0x120/0x6e0 [ 111.675022][ T9131] kernel_init_freeable+0x5c2/0x900 [ 111.680245][ T9131] kernel_init+0x1c/0x2b0 [ 111.684592][ T9131] ret_from_fork+0x45/0x80 [ 111.689039][ T9131] ret_from_fork_asm+0x1a/0x30 [ 111.693842][ T9131] page_owner free stack trace missing [ 111.699214][ T9131] [ 111.701543][ T9131] Memory state around the buggy address: [ 111.707185][ T9131] ffff8881412e5b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 111.715257][ T9131] ffff8881412e5b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 111.723327][ T9131] >ffff8881412e5c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 111.731397][ T9131] ^ [ 111.736252][ T9131] ffff8881412e5c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 111.744325][ T9131] ffff8881412e5d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc executing program executing program executing program [ 111.752393][ T9131] ================================================================== [ 111.785299][ T9131] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 111.792544][ T9131] CPU: 1 UID: 0 PID: 9131 Comm: syz-executor286 Not tainted 6.15.0-rc1-syzkaller-00246-g900241a5cc15 #0 PREEMPT(full) [ 111.804971][ T9131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 111.815043][ T9131] Call Trace: [ 111.818332][ T9131] [ 111.821270][ T9131] dump_stack_lvl+0x3d/0x1f0 [ 111.825898][ T9131] panic+0x71c/0x800 [ 111.829820][ T9131] ? __pfx_panic+0x10/0x10 [ 111.834278][ T9131] ? mark_held_locks+0x49/0x80 [ 111.839071][ T9131] ? preempt_schedule_thunk+0x16/0x30 [ 111.844461][ T9131] ? dvb_device_open+0x36a/0x3b0 [ 111.849414][ T9131] ? preempt_schedule_common+0x44/0xc0 [ 111.854913][ T9131] ? check_panic_on_warn+0x1f/0xb0 [ 111.860041][ T9131] ? dvb_device_open+0x36a/0x3b0 [ 111.864989][ T9131] check_panic_on_warn+0xab/0xb0 [ 111.869940][ T9131] end_report+0x107/0x170 [ 111.874312][ T9131] kasan_report+0xee/0x110 [ 111.878759][ T9131] ? dvb_device_open+0x36a/0x3b0 [ 111.883730][ T9131] ? __pfx_dvb_device_open+0x10/0x10 [ 111.889037][ T9131] dvb_device_open+0x36a/0x3b0 [ 111.893823][ T9131] ? __pfx_dvb_device_open+0x10/0x10 [ 111.899128][ T9131] chrdev_open+0x231/0x6a0 [ 111.903580][ T9131] ? __pfx_apparmor_file_open+0x10/0x10 [ 111.909154][ T9131] ? __pfx_chrdev_open+0x10/0x10 [ 111.914127][ T9131] ? file_set_fsnotify_mode_from_watchers+0x163/0x640 [ 111.920923][ T9131] do_dentry_open+0x741/0x1c10 [ 111.925718][ T9131] ? __pfx_chrdev_open+0x10/0x10 [ 111.930698][ T9131] vfs_open+0x82/0x3f0 [ 111.934798][ T9131] path_openat+0x1e5e/0x2d40 [ 111.939426][ T9131] ? __pfx_path_openat+0x10/0x10 [ 111.944401][ T9131] do_filp_open+0x20b/0x470 [ 111.948935][ T9131] ? __pfx_do_filp_open+0x10/0x10 [ 111.954003][ T9131] ? alloc_fd+0x471/0x7d0 [ 111.958370][ T9131] do_sys_openat2+0x11b/0x1d0 [ 111.963089][ T9131] ? __pfx_do_sys_openat2+0x10/0x10 [ 111.968313][ T9131] ? rcu_is_watching+0x12/0xc0 [ 111.973128][ T9131] __x64_sys_openat+0x174/0x210 [ 111.978001][ T9131] ? __pfx___x64_sys_openat+0x10/0x10 [ 111.983406][ T9131] do_syscall_64+0xcd/0x260 [ 111.987946][ T9131] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 111.993862][ T9131] RIP: 0033:0x7f6ae2b5eb69 [ 111.998295][ T9131] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 112.017928][ T9131] RSP: 002b:00007ffe062c8c58 EFLAGS: 00000206 ORIG_RAX: 0000000000000101 [ 112.026536][ T9131] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6ae2b5eb69 [ 112.034531][ T9131] RDX: 0000000000000001 RSI: 0000200000000000 RDI: ffffffffffffff9c [ 112.042520][ T9131] RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0 [ 112.050526][ T9131] R10: 0000000000000000 R11: 0000000000000206 R12: 000000000001b145 [ 112.058530][ T9131] R13: 00007ffe062c8c6c R14: 00007ffe062c8c80 R15: 00007ffe062c8c70 [ 112.066631][ T9131] [ 112.069920][ T9131] Kernel Offset: disabled [ 112.074259][ T9131] Rebooting in 86400 seconds..