Warning: Permanently added '10.128.1.157' (ED25519) to the list of known hosts.
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[   70.978501][ T7346] ==================================================================
[   70.986608][ T7346] BUG: KASAN: slab-use-after-free in dvb_device_open+0x36a/0x3b0
[   70.994390][ T7346] Read of size 8 at addr ffff888029f44e18 by task syz-executor377/7346
[   71.002653][ T7346] 
[   71.004985][ T7346] CPU: 1 UID: 0 PID: 7346 Comm: syz-executor377 Not tainted 6.14.0-rc4-syzkaller #0
[   71.005001][ T7346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   71.005013][ T7346] Call Trace:
[   71.005018][ T7346]  <TASK>
[   71.005028][ T7346]  dump_stack_lvl+0x116/0x1f0
[   71.005051][ T7346]  print_report+0xc3/0x670
[   71.005070][ T7346]  ? __virt_addr_valid+0x5e/0x590
[   71.005084][ T7346]  ? __phys_addr+0xc6/0x150
[   71.005099][ T7346]  kasan_report+0xd9/0x110
[   71.005110][ T7346]  ? dvb_device_open+0x36a/0x3b0
[   71.005125][ T7346]  ? dvb_device_open+0x36a/0x3b0
[   71.005140][ T7346]  ? __pfx_dvb_device_open+0x10/0x10
[   71.005154][ T7346]  dvb_device_open+0x36a/0x3b0
[   71.005168][ T7346]  ? __pfx_dvb_device_open+0x10/0x10
[   71.005182][ T7346]  chrdev_open+0x237/0x6a0
[   71.005200][ T7346]  ? __pfx_apparmor_file_open+0x10/0x10
[   71.005220][ T7346]  ? __pfx_chrdev_open+0x10/0x10
[   71.005246][ T7346]  ? file_set_fsnotify_mode_from_watchers+0x163/0x640
[   71.005264][ T7346]  do_dentry_open+0x735/0x1c40
[   71.005281][ T7346]  ? __pfx_chrdev_open+0x10/0x10
[   71.005299][ T7346]  ? inode_permission+0xdd/0x5f0
[   71.005313][ T7346]  vfs_open+0x82/0x3f0
[   71.005325][ T7346]  ? may_open+0x1f2/0x400
[   71.005343][ T7346]  path_openat+0x1e88/0x2d80
[   71.005371][ T7346]  ? __pfx_path_openat+0x10/0x10
[   71.005396][ T7346]  ? __pfx___lock_acquire+0x10/0x10
[   71.005420][ T7346]  ? lock_acquire.part.0+0x11b/0x380
[   71.005444][ T7346]  ? find_held_lock+0x2d/0x110
[   71.005465][ T7346]  do_filp_open+0x20c/0x470
[   71.005491][ T7346]  ? __pfx_do_filp_open+0x10/0x10
[   71.005514][ T7346]  ? find_held_lock+0x2d/0x110
[   71.005540][ T7346]  ? alloc_fd+0x41f/0x760
[   71.005558][ T7346]  do_sys_openat2+0x17a/0x1e0
[   71.005574][ T7346]  ? __pfx_do_sys_openat2+0x10/0x10
[   71.005588][ T7346]  ? do_user_addr_fault+0xe50/0x13f0
[   71.005606][ T7346]  ? __pfx_lock_release+0x10/0x10
[   71.005623][ T7346]  __x64_sys_openat+0x175/0x210
[   71.005645][ T7346]  ? __pfx___x64_sys_openat+0x10/0x10
[   71.005666][ T7346]  ? do_user_addr_fault+0x83d/0x13f0
[   71.005694][ T7346]  do_syscall_64+0xcd/0x250
[   71.005720][ T7346]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   71.005744][ T7346] RIP: 0033:0x7f91ae87bb29
[   71.005761][ T7346] 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
[   71.005777][ T7346] RSP: 002b:00007fff4fa3d908 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[   71.005789][ T7346] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f91ae87bb29
[   71.005798][ T7346] RDX: 0000000000000001 RSI: 0000400000000000 RDI: ffffffffffffff9c
[   71.005806][ T7346] RBP: 00000000000f4240 R08: 0000000000008000 R09: 0000000000008000
[   71.005813][ T7346] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000011514
[   71.005821][ T7346] R13: 00007fff4fa3d92c R14: 00007fff4fa3d940 R15: 00007fff4fa3d930
[   71.005832][ T7346]  </TASK>
[   71.005837][ T7346] 
[   71.292558][ T7346] Allocated by task 1:
[   71.296612][ T7346]  kasan_save_stack+0x33/0x60
[   71.301285][ T7346]  kasan_save_track+0x14/0x30
[   71.305953][ T7346]  __kasan_kmalloc+0xaa/0xb0
[   71.310528][ T7346]  dvb_register_device+0x1d8/0x2310
[   71.315721][ T7346]  dvb_register_frontend+0x5a7/0x880
[   71.321007][ T7346]  vidtv_bridge_probe+0x45e/0xa90
[   71.326016][ T7346]  platform_probe+0xff/0x1f0
[   71.330599][ T7346]  really_probe+0x23e/0xa90
[   71.335083][ T7346]  __driver_probe_device+0x1de/0x440
[   71.340450][ T7346]  driver_probe_device+0x4c/0x1b0
[   71.345473][ T7346]  __driver_attach+0x283/0x580
[   71.350246][ T7346]  bus_for_each_dev+0x13c/0x1d0
[   71.355088][ T7346]  bus_add_driver+0x2e9/0x690
[   71.359757][ T7346]  driver_register+0x15c/0x4b0
[   71.364525][ T7346]  vidtv_bridge_init+0x45/0x80
[   71.369311][ T7346]  do_one_initcall+0x128/0x700
[   71.374178][ T7346]  kernel_init_freeable+0x5c7/0x900
[   71.379384][ T7346]  kernel_init+0x1c/0x2b0
[   71.383706][ T7346]  ret_from_fork+0x45/0x80
[   71.388159][ T7346]  ret_from_fork_asm+0x1a/0x30
[   71.392913][ T7346] 
[   71.395230][ T7346] Freed by task 7343:
[   71.399206][ T7346]  kasan_save_stack+0x33/0x60
[   71.403880][ T7346]  kasan_save_track+0x14/0x30
[   71.408556][ T7346]  kasan_save_free_info+0x3b/0x60
[   71.413571][ T7346]  __kasan_slab_free+0x51/0x70
[   71.418415][ T7346]  kfree+0x2c4/0x4d0
[   71.422296][ T7346]  dvb_device_put.part.0+0x60/0x90
[   71.427394][ T7346]  dvb_device_open+0x2a4/0x3b0
[   71.432145][ T7346]  chrdev_open+0x237/0x6a0
[   71.436551][ T7346]  do_dentry_open+0x735/0x1c40
[   71.441306][ T7346]  vfs_open+0x82/0x3f0
[   71.445368][ T7346]  path_openat+0x1e88/0x2d80
[   71.449954][ T7346]  do_filp_open+0x20c/0x470
[   71.454450][ T7346]  do_sys_openat2+0x17a/0x1e0
[   71.459155][ T7346]  __x64_sys_openat+0x175/0x210
[   71.463990][ T7346]  do_syscall_64+0xcd/0x250
[   71.468481][ T7346]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   71.474363][ T7346] 
[   71.476671][ T7346] The buggy address belongs to the object at ffff888029f44e00
[   71.476671][ T7346]  which belongs to the cache kmalloc-256 of size 256
[   71.490707][ T7346] The buggy address is located 24 bytes inside of
[   71.490707][ T7346]  freed 256-byte region [ffff888029f44e00, ffff888029f44f00)
[   71.504932][ T7346] 
[   71.507246][ T7346] The buggy address belongs to the physical page:
[   71.513672][ T7346] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x29f44
[   71.522519][ T7346] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   71.531180][ T7346] flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
[   71.538728][ T7346] page_type: f5(slab)
[   71.542692][ T7346] raw: 00fff00000000040 ffff88801b041b40 dead000000000122 0000000000000000
[   71.551274][ T7346] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[   71.559847][ T7346] head: 00fff00000000040 ffff88801b041b40 dead000000000122 0000000000000000
[   71.568508][ T7346] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
[   71.577168][ T7346] head: 00fff00000000001 ffffea0000a7d101 ffffffffffffffff 0000000000000000
[   71.585911][ T7346] head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000
[   71.594570][ T7346] page dumped because: kasan: bad access detected
[   71.600985][ T7346] page_owner tracks the page as allocated
[   71.606683][ T7346] 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 15967465854, free_ts 0
[   71.626396][ T7346]  post_alloc_hook+0x181/0x1b0
[   71.631154][ T7346]  get_page_from_freelist+0xfce/0x2f80
[   71.636612][ T7346]  __alloc_frozen_pages_noprof+0x221/0x2470
[   71.642494][ T7346]  alloc_pages_mpol+0x1fc/0x540
[   71.647350][ T7346]  new_slab+0x23d/0x330
[   71.651505][ T7346]  ___slab_alloc+0xc5d/0x1720
[   71.656170][ T7346]  __slab_alloc.constprop.0+0x56/0xb0
[   71.661527][ T7346]  __kmalloc_cache_noprof+0xfa/0x410
[   71.667029][ T7346]  bus_add_driver+0x92/0x690
[   71.671685][ T7346]  driver_register+0x15c/0x4b0
[   71.676447][ T7346]  usb_register_driver+0x216/0x4d0
[   71.681558][ T7346]  do_one_initcall+0x128/0x700
[   71.686314][ T7346]  kernel_init_freeable+0x5c7/0x900
[   71.691501][ T7346]  kernel_init+0x1c/0x2b0
[   71.695823][ T7346]  ret_from_fork+0x45/0x80
[   71.700252][ T7346]  ret_from_fork_asm+0x1a/0x30
[   71.705009][ T7346] page_owner free stack trace missing
[   71.710378][ T7346] 
[   71.712684][ T7346] Memory state around the buggy address:
[   71.718307][ T7346]  ffff888029f44d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   71.726358][ T7346]  ffff888029f44d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   71.734419][ T7346] >ffff888029f44e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   71.742469][ T7346]                             ^
[   71.747314][ T7346]  ffff888029f44e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   71.756948][ T7346]  ffff888029f44f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   71.765001][ T7346] ==================================================================
[   71.774412][ T7346] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[   71.781626][ T7346] CPU: 1 UID: 0 PID: 7346 Comm: syz-executor377 Not tainted 6.14.0-rc4-syzkaller #0
[   71.790992][ T7346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   71.801045][ T7346] Call Trace:
[   71.804493][ T7346]  <TASK>
[   71.807420][ T7346]  dump_stack_lvl+0x3d/0x1f0
[   71.812012][ T7346]  panic+0x71d/0x800
[   71.815903][ T7346]  ? __pfx_panic+0x10/0x10
[   71.820316][ T7346]  ? irqentry_exit+0x3b/0x90
[   71.824905][ T7346]  ? lockdep_hardirqs_on+0x7c/0x110
[   71.830139][ T7346]  ? preempt_schedule_thunk+0x1a/0x30
[   71.835511][ T7346]  ? preempt_schedule_common+0x44/0xc0
[   71.840969][ T7346]  ? check_panic_on_warn+0x1f/0xb0
[   71.846088][ T7346]  check_panic_on_warn+0xab/0xb0
[   71.851029][ T7346]  end_report+0x117/0x180
[   71.855365][ T7346]  kasan_report+0xe9/0x110
[   71.859787][ T7346]  ? dvb_device_open+0x36a/0x3b0
[   71.864732][ T7346]  ? dvb_device_open+0x36a/0x3b0
[   71.869686][ T7346]  ? __pfx_dvb_device_open+0x10/0x10
[   71.874969][ T7346]  dvb_device_open+0x36a/0x3b0
[   71.879732][ T7346]  ? __pfx_dvb_device_open+0x10/0x10
[   71.885022][ T7346]  chrdev_open+0x237/0x6a0
[   71.889604][ T7346]  ? __pfx_apparmor_file_open+0x10/0x10
[   71.895174][ T7346]  ? __pfx_chrdev_open+0x10/0x10
[   71.900180][ T7346]  ? file_set_fsnotify_mode_from_watchers+0x163/0x640
[   71.907222][ T7346]  do_dentry_open+0x735/0x1c40
[   71.912015][ T7346]  ? __pfx_chrdev_open+0x10/0x10
[   71.917246][ T7346]  ? inode_permission+0xdd/0x5f0
[   71.922205][ T7346]  vfs_open+0x82/0x3f0
[   71.926282][ T7346]  ? may_open+0x1f2/0x400
[   71.930721][ T7346]  path_openat+0x1e88/0x2d80
[   71.936035][ T7346]  ? __pfx_path_openat+0x10/0x10
[   71.940994][ T7346]  ? __pfx___lock_acquire+0x10/0x10
[   71.946285][ T7346]  ? lock_acquire.part.0+0x11b/0x380
[   71.951575][ T7346]  ? find_held_lock+0x2d/0x110
[   71.956627][ T7346]  do_filp_open+0x20c/0x470
[   71.961140][ T7346]  ? __pfx_do_filp_open+0x10/0x10
[   71.966256][ T7346]  ? find_held_lock+0x2d/0x110
[   71.971113][ T7346]  ? alloc_fd+0x41f/0x760
[   71.975449][ T7346]  do_sys_openat2+0x17a/0x1e0
[   71.980122][ T7346]  ? __pfx_do_sys_openat2+0x10/0x10
[   71.985419][ T7346]  ? do_user_addr_fault+0xe50/0x13f0
[   71.990802][ T7346]  ? __pfx_lock_release+0x10/0x10
[   71.995829][ T7346]  __x64_sys_openat+0x175/0x210
[   72.000687][ T7346]  ? __pfx___x64_sys_openat+0x10/0x10
[   72.006081][ T7346]  ? do_user_addr_fault+0x83d/0x13f0
[   72.011376][ T7346]  do_syscall_64+0xcd/0x250
[   72.015880][ T7346]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   72.021784][ T7346] RIP: 0033:0x7f91ae87bb29
[   72.026212][ T7346] 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
[   72.045906][ T7346] RSP: 002b:00007fff4fa3d908 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[   72.054316][ T7346] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f91ae87bb29
[   72.062283][ T7346] RDX: 0000000000000001 RSI: 0000400000000000 RDI: ffffffffffffff9c
[   72.070337][ T7346] RBP: 00000000000f4240 R08: 0000000000008000 R09: 0000000000008000
[   72.078391][ T7346] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000011514
[   72.086442][ T7346] R13: 00007fff4fa3d92c R14: 00007fff4fa3d940 R15: 00007fff4fa3d930
[   72.094417][ T7346]  </TASK>
[   72.097600][ T7346] Kernel Offset: disabled
[   72.101930][ T7346] Rebooting in 86400 seconds..