Warning: Permanently added '10.128.1.76' (ED25519) to the list of known hosts. 2026/02/21 13:57:03 parsed 1 programs Setting up swapspace version 1, size = 127995904 bytes [ 125.206539][ T6268] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 131.017763][ T6317] chnl_net:caif_netlink_parms(): no params data found [ 131.111489][ T6317] bridge0: port 1(bridge_slave_0) entered blocking state [ 131.111605][ T6317] bridge0: port 1(bridge_slave_0) entered disabled state [ 131.111694][ T6317] bridge_slave_0: entered allmulticast mode [ 131.112997][ T6317] bridge_slave_0: entered promiscuous mode [ 131.143372][ T6317] bridge0: port 2(bridge_slave_1) entered blocking state [ 131.143480][ T6317] bridge0: port 2(bridge_slave_1) entered disabled state [ 131.143585][ T6317] bridge_slave_1: entered allmulticast mode [ 131.144936][ T6317] bridge_slave_1: entered promiscuous mode [ 131.315983][ T6317] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 131.318290][ T6317] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 131.352141][ T6317] team0: Port device team_slave_0 added [ 131.355493][ T6317] team0: Port device team_slave_1 added [ 131.387522][ T6317] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 131.387537][ T6317] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 131.387553][ T6317] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 131.388786][ T6317] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 131.388797][ T6317] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 131.388817][ T6317] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 131.501036][ T6317] hsr_slave_0: entered promiscuous mode [ 131.501726][ T6317] hsr_slave_1: entered promiscuous mode [ 132.890321][ T1319] ieee802154 phy0 wpan0: encryption failed: -22 [ 132.890408][ T1319] ieee802154 phy1 wpan1: encryption failed: -22 [ 133.181506][ T6317] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 133.219728][ T6317] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 133.257591][ T6317] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 133.298132][ T6317] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 133.445490][ T6317] 8021q: adding VLAN 0 to HW filter on device bond0 [ 133.470040][ T6317] 8021q: adding VLAN 0 to HW filter on device team0 [ 133.484854][ T42] bridge0: port 1(bridge_slave_0) entered blocking state [ 133.484965][ T42] bridge0: port 1(bridge_slave_0) entered forwarding state [ 133.489778][ T42] bridge0: port 2(bridge_slave_1) entered blocking state [ 133.489900][ T42] bridge0: port 2(bridge_slave_1) entered forwarding state [ 133.814857][ T6317] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 133.882572][ T6317] veth0_vlan: entered promiscuous mode [ 133.902469][ T6317] veth1_vlan: entered promiscuous mode [ 133.956200][ T6317] veth0_macvtap: entered promiscuous mode [ 133.961264][ T6317] veth1_macvtap: entered promiscuous mode [ 133.989693][ T6317] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 134.007871][ T6317] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 134.026289][ T1165] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 134.026569][ T1165] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 134.027504][ T1165] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 134.028847][ T1165] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 134.414802][ T5112] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 134.417307][ T5112] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 134.418146][ T5112] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 134.419302][ T5112] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 134.419986][ T5112] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 134.940924][ T42] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 135.218028][ T42] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 135.587729][ T42] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 136.612220][ T42] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 136.678710][ T1121] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.678730][ T1121] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 136.740470][ T1121] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 136.740490][ T1121] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 137.233456][ T42] bridge_slave_1: left allmulticast mode [ 137.233483][ T42] bridge_slave_1: left promiscuous mode [ 137.235927][ T42] bridge0: port 2(bridge_slave_1) entered disabled state [ 137.324987][ T42] bridge_slave_0: left allmulticast mode [ 137.325012][ T42] bridge_slave_0: left promiscuous mode [ 137.325262][ T42] bridge0: port 1(bridge_slave_0) entered disabled state 2026/02/21 13:57:19 executed programs: 0 [ 137.926029][ T60] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 137.931725][ T60] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 137.932618][ T60] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 137.957231][ T60] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 137.958554][ T60] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 138.283923][ T42] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 138.374536][ T42] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 138.431740][ T42] bond0 (unregistering): Released all slaves [ 138.843248][ T42] hsr_slave_0: left promiscuous mode [ 138.883312][ T42] hsr_slave_1: left promiscuous mode [ 138.884282][ T42] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 138.884304][ T42] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 138.945464][ T42] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 138.945492][ T42] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 138.994423][ T42] veth1_macvtap: left promiscuous mode [ 138.994484][ T42] veth0_macvtap: left promiscuous mode [ 138.994614][ T42] veth1_vlan: left promiscuous mode [ 138.994703][ T42] veth0_vlan: left promiscuous mode [ 139.686092][ T42] team0 (unregistering): Port device team_slave_1 removed [ 139.744051][ T42] team0 (unregistering): Port device team_slave_0 removed [ 139.980796][ T6514] chnl_net:caif_netlink_parms(): no params data found [ 140.004319][ T60] Bluetooth: hci0: command tx timeout [ 140.132889][ T6514] bridge0: port 1(bridge_slave_0) entered blocking state [ 140.141296][ T6514] bridge0: port 1(bridge_slave_0) entered disabled state [ 140.141491][ T6514] bridge_slave_0: entered allmulticast mode [ 140.159188][ T6514] bridge_slave_0: entered promiscuous mode [ 140.162222][ T6514] bridge0: port 2(bridge_slave_1) entered blocking state [ 140.162404][ T6514] bridge0: port 2(bridge_slave_1) entered disabled state [ 140.162561][ T6514] bridge_slave_1: entered allmulticast mode [ 140.185219][ T6514] bridge_slave_1: entered promiscuous mode [ 140.251784][ T6514] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 140.256008][ T6514] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 140.306587][ T6514] team0: Port device team_slave_0 added [ 140.309966][ T6514] team0: Port device team_slave_1 added [ 140.357171][ T6514] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 140.357187][ T6514] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 140.357207][ T6514] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 140.359346][ T6514] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 140.359359][ T6514] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 140.359381][ T6514] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 140.510631][ T6514] hsr_slave_0: entered promiscuous mode [ 140.511905][ T6514] hsr_slave_1: entered promiscuous mode [ 142.083257][ T60] Bluetooth: hci0: command tx timeout [ 142.322322][ T6514] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 142.348121][ T6514] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 142.399217][ T6514] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 142.438134][ T6514] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 142.902877][ T6514] 8021q: adding VLAN 0 to HW filter on device bond0 [ 143.247166][ T6514] 8021q: adding VLAN 0 to HW filter on device team0 [ 143.339362][ T565] bridge0: port 1(bridge_slave_0) entered blocking state [ 143.339504][ T565] bridge0: port 1(bridge_slave_0) entered forwarding state [ 143.356577][ T5103] bridge0: port 2(bridge_slave_1) entered blocking state [ 143.356800][ T5103] bridge0: port 2(bridge_slave_1) entered forwarding state [ 143.739304][ T6514] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 143.777485][ T6514] veth0_vlan: entered promiscuous mode [ 143.794968][ T6514] veth1_vlan: entered promiscuous mode [ 143.823850][ T6514] veth0_macvtap: entered promiscuous mode [ 143.827269][ T6514] veth1_macvtap: entered promiscuous mode [ 143.840753][ T6514] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 143.845815][ T6514] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 143.908223][ T1121] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 143.908996][ T1121] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 143.909791][ T1121] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 143.910600][ T1121] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 144.042381][ T565] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 144.042401][ T565] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 144.080378][ T1121] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 144.080397][ T1121] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2026/02/21 13:57:26 executed programs: 2 [ 144.163277][ T60] Bluetooth: hci0: command tx timeout [ 144.288278][ T6637] ================================================================== [ 144.288293][ T6637] BUG: KASAN: slab-use-after-free in dvb_device_open+0xc4/0x360 [ 144.288330][ T6637] Read of size 8 at addr ffff88802b6da418 by task syz.0.19/6637 [ 144.288345][ T6637] [ 144.288370][ T6637] CPU: 1 UID: 0 PID: 6637 Comm: syz.0.19 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 144.288389][ T6637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 144.288406][ T6637] Call Trace: [ 144.288416][ T6637] [ 144.288424][ T6637] dump_stack_lvl+0xe8/0x150 [ 144.288448][ T6637] print_report+0xba/0x230 [ 144.288468][ T6637] ? dvb_device_open+0xc4/0x360 [ 144.288488][ T6637] kasan_report+0x117/0x150 [ 144.288511][ T6637] ? dvb_device_open+0xc4/0x360 [ 144.288536][ T6637] dvb_device_open+0xc4/0x360 [ 144.288558][ T6637] ? rt_spin_unlock+0x160/0x200 [ 144.288577][ T6637] chrdev_open+0x4d0/0x5f0 [ 144.288617][ T6637] ? __pfx_chrdev_open+0x10/0x10 [ 144.288639][ T6637] ? fsnotify_open_perm_and_set_mode+0x13b/0x6e0 [ 144.288663][ T6637] ? __pfx_chrdev_open+0x10/0x10 [ 144.288685][ T6637] do_dentry_open+0x83d/0x13e0 [ 144.288715][ T6637] vfs_open+0x3b/0x350 [ 144.288731][ T6637] ? path_openat+0x2e2b/0x38a0 [ 144.288754][ T6637] path_openat+0x2e43/0x38a0 [ 144.288788][ T6637] ? __pfx_path_openat+0x10/0x10 [ 144.288808][ T6637] ? __lock_acquire+0x6b5/0x2cf0 [ 144.288826][ T6637] ? kmem_cache_alloc_noprof+0x33b/0x680 [ 144.288851][ T6637] ? do_raw_spin_lock+0x12b/0x2f0 [ 144.288875][ T6637] do_file_open+0x23e/0x4a0 [ 144.288894][ T6637] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 144.288916][ T6637] ? __pfx_do_file_open+0x10/0x10 [ 144.288935][ T6637] ? rt_mutex_slowunlock+0x4a7/0x8b0 [ 144.288961][ T6637] ? alloc_fd+0x64e/0x6c0 [ 144.288981][ T6637] do_sys_openat2+0x113/0x200 [ 144.289000][ T6637] ? __pfx_do_sys_openat2+0x10/0x10 [ 144.289018][ T6637] ? exc_page_fault+0x6a/0xc0 [ 144.289039][ T6637] ? do_user_addr_fault+0xc6f/0x1340 [ 144.289062][ T6637] __x64_sys_openat+0x138/0x170 [ 144.289082][ T6637] do_syscall_64+0x14d/0xf80 [ 144.289101][ T6637] ? trace_irq_disable+0x3b/0x150 [ 144.289120][ T6637] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 144.289137][ T6637] ? clear_bhb_loop+0x40/0x90 [ 144.289156][ T6637] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 144.289172][ T6637] RIP: 0033:0x7f0b55cdc84e [ 144.289196][ T6637] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 144.289211][ T6637] RSP: 002b:00007f0b5537db28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 144.289234][ T6637] RAX: ffffffffffffffda RBX: 00007f0b5537e6c0 RCX: 00007f0b55cdc84e [ 144.289246][ T6637] RDX: 0000000000000400 RSI: 00007f0b5537dc00 RDI: ffffffffffffff9c [ 144.289259][ T6637] RBP: 00007f0b5537dc00 R08: 0000000000000000 R09: 0000000000000000 [ 144.289270][ T6637] R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd [ 144.289281][ T6637] R13: 00007f0b55f96038 R14: 00007f0b55f95fa0 R15: 00007ffc62e6c1b8 [ 144.289301][ T6637] [ 144.289307][ T6637] [ 144.289311][ T6637] Allocated by task 1: [ 144.289318][ T6637] kasan_save_track+0x3e/0x80 [ 144.289337][ T6637] __kasan_kmalloc+0x93/0xb0 [ 144.289355][ T6637] __kmalloc_cache_noprof+0x3a6/0x690 [ 144.289374][ T6637] dvb_register_device+0x2fd/0x2210 [ 144.289393][ T6637] dvb_register_frontend+0x665/0x970 [ 144.289412][ T6637] vidtv_bridge_probe+0x9aa/0xf80 [ 144.289426][ T6637] platform_probe+0xf9/0x190 [ 144.289445][ T6637] really_probe+0x267/0xaf0 [ 144.289458][ T6637] __driver_probe_device+0x18c/0x320 [ 144.289478][ T6637] driver_probe_device+0x4f/0x240 [ 144.289498][ T6637] __driver_attach+0x3e7/0x710 [ 144.289517][ T6637] bus_for_each_dev+0x23e/0x2c0 [ 144.289533][ T6637] bus_add_driver+0x348/0x670 [ 144.289548][ T6637] driver_register+0x23a/0x320 [ 144.289562][ T6637] vidtv_bridge_init+0x28/0x50 [ 144.289582][ T6637] do_one_initcall+0x250/0x8d0 [ 144.289601][ T6637] do_initcall_level+0x104/0x190 [ 144.289616][ T6637] do_initcalls+0x59/0xa0 [ 144.289628][ T6637] kernel_init_freeable+0x2a6/0x3e0 [ 144.289642][ T6637] kernel_init+0x1d/0x1d0 [ 144.289654][ T6637] ret_from_fork+0x51e/0xb90 [ 144.289673][ T6637] ret_from_fork_asm+0x1a/0x30 [ 144.289687][ T6637] [ 144.289691][ T6637] Freed by task 6634: [ 144.289699][ T6637] kasan_save_track+0x3e/0x80 [ 144.289723][ T6637] kasan_save_free_info+0x46/0x50 [ 144.289738][ T6637] __kasan_slab_free+0x5c/0x80 [ 144.289756][ T6637] kfree+0x1c1/0x6c0 [ 144.289773][ T6637] dvb_frontend_release+0x3de/0x500 [ 144.289791][ T6637] __fput+0x461/0xa90 [ 144.289806][ T6637] task_work_run+0x1d9/0x270 [ 144.289821][ T6637] exit_to_user_mode_loop+0xed/0x480 [ 144.289841][ T6637] do_syscall_64+0x32d/0xf80 [ 144.289858][ T6637] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 144.289873][ T6637] [ 144.289877][ T6637] The buggy address belongs to the object at ffff88802b6da400 [ 144.289877][ T6637] which belongs to the cache kmalloc-512 of size 512 [ 144.289891][ T6637] The buggy address is located 24 bytes inside of [ 144.289891][ T6637] freed 512-byte region [ffff88802b6da400, ffff88802b6da600) [ 144.289908][ T6637] [ 144.289911][ T6637] The buggy address belongs to the physical page: [ 144.289928][ T6637] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2b6d8 [ 144.289944][ T6637] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 144.289958][ T6637] flags: 0x80000000000040(head|node=0|zone=1) [ 144.289978][ T6637] page_type: f5(slab) [ 144.289993][ T6637] raw: 0080000000000040 ffff88813fe1cc80 dead000000000100 dead000000000122 [ 144.290007][ T6637] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 144.290022][ T6637] head: 0080000000000040 ffff88813fe1cc80 dead000000000100 dead000000000122 [ 144.290035][ T6637] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 144.290049][ T6637] head: 0080000000000002 ffffea0000adb601 00000000ffffffff 00000000ffffffff [ 144.290063][ T6637] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000004 [ 144.290071][ T6637] page dumped because: kasan: bad access detected [ 144.290082][ T6637] page_owner tracks the page as allocated [ 144.290089][ T6637] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 13477098013, free_ts 0 [ 144.290116][ T6637] post_alloc_hook+0x231/0x280 [ 144.290135][ T6637] get_page_from_freelist+0x28bb/0x2950 [ 144.290148][ T6637] __alloc_frozen_pages_noprof+0x18d/0x380 [ 144.290162][ T6637] allocate_slab+0x77/0x660 [ 144.290177][ T6637] refill_objects+0x334/0x3c0 [ 144.290191][ T6637] __pcs_replace_empty_main+0x328/0x5f0 [ 144.290206][ T6637] __kmalloc_cache_noprof+0x44e/0x690 [ 144.290226][ T6637] bus_add_driver+0x165/0x670 [ 144.290241][ T6637] driver_register+0x23a/0x320 [ 144.290256][ T6637] usb_register_driver+0x1e4/0x390 [ 144.290277][ T6637] do_one_initcall+0x250/0x8d0 [ 144.290296][ T6637] do_initcall_level+0x104/0x190 [ 144.290308][ T6637] do_initcalls+0x59/0xa0 [ 144.290320][ T6637] kernel_init_freeable+0x2a6/0x3e0 [ 144.290333][ T6637] kernel_init+0x1d/0x1d0 [ 144.290345][ T6637] ret_from_fork+0x51e/0xb90 [ 144.290363][ T6637] page_owner free stack trace missing [ 144.290369][ T6637] [ 144.290372][ T6637] Memory state around the buggy address: [ 144.290380][ T6637] ffff88802b6da300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 144.290390][ T6637] ffff88802b6da380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 144.290401][ T6637] >ffff88802b6da400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 144.290408][ T6637] ^ [ 144.290417][ T6637] ffff88802b6da480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 144.290427][ T6637] ffff88802b6da500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 144.290435][ T6637] ================================================================== [ 144.290454][ T6637] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 144.290466][ T6637] CPU: 1 UID: 0 PID: 6637 Comm: syz.0.19 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 144.290485][ T6637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 144.290495][ T6637] Call Trace: [ 144.290501][ T6637] [ 144.290508][ T6637] vpanic+0x56c/0xa60 [ 144.290531][ T6637] ? __pfx_vpanic+0x10/0x10 [ 144.290557][ T6637] panic+0xc5/0xd0 [ 144.290577][ T6637] ? __pfx_panic+0x10/0x10 [ 144.290600][ T6637] ? dvb_device_open+0xc4/0x360 [ 144.290620][ T6637] ? rcu_is_watching+0x15/0xb0 [ 144.290640][ T6637] ? dvb_device_open+0xc4/0x360 [ 144.290660][ T6637] check_panic_on_warn+0x89/0xb0 [ 144.290678][ T6637] ? dvb_device_open+0xc4/0x360 [ 144.290699][ T6637] end_report+0x73/0x180 [ 144.290727][ T6637] ? dvb_device_open+0xc4/0x360 [ 144.290747][ T6637] kasan_report+0x128/0x150 [ 144.290769][ T6637] ? dvb_device_open+0xc4/0x360 [ 144.290794][ T6637] dvb_device_open+0xc4/0x360 [ 144.290815][ T6637] ? rt_spin_unlock+0x160/0x200 [ 144.290831][ T6637] chrdev_open+0x4d0/0x5f0 [ 144.290853][ T6637] ? __pfx_chrdev_open+0x10/0x10 [ 144.290875][ T6637] ? fsnotify_open_perm_and_set_mode+0x13b/0x6e0 [ 144.290904][ T6637] ? __pfx_chrdev_open+0x10/0x10 [ 144.290926][ T6637] do_dentry_open+0x83d/0x13e0 [ 144.290949][ T6637] vfs_open+0x3b/0x350 [ 144.290963][ T6637] ? path_openat+0x2e2b/0x38a0 [ 144.290983][ T6637] path_openat+0x2e43/0x38a0 [ 144.291016][ T6637] ? __pfx_path_openat+0x10/0x10 [ 144.291035][ T6637] ? __lock_acquire+0x6b5/0x2cf0 [ 144.291051][ T6637] ? kmem_cache_alloc_noprof+0x33b/0x680 [ 144.291073][ T6637] ? do_raw_spin_lock+0x12b/0x2f0 [ 144.291096][ T6637] do_file_open+0x23e/0x4a0 [ 144.291114][ T6637] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 144.291135][ T6637] ? __pfx_do_file_open+0x10/0x10 [ 144.291154][ T6637] ? rt_mutex_slowunlock+0x4a7/0x8b0 [ 144.291179][ T6637] ? alloc_fd+0x64e/0x6c0 [ 144.291200][ T6637] do_sys_openat2+0x113/0x200 [ 144.291218][ T6637] ? __pfx_do_sys_openat2+0x10/0x10 [ 144.291236][ T6637] ? exc_page_fault+0x6a/0xc0 [ 144.291257][ T6637] ? do_user_addr_fault+0xc6f/0x1340 [ 144.291279][ T6637] __x64_sys_openat+0x138/0x170 [ 144.291299][ T6637] do_syscall_64+0x14d/0xf80 [ 144.291318][ T6637] ? trace_irq_disable+0x3b/0x150 [ 144.291336][ T6637] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 144.291352][ T6637] ? clear_bhb_loop+0x40/0x90 [ 144.291371][ T6637] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 144.291387][ T6637] RIP: 0033:0x7f0b55cdc84e [ 144.291402][ T6637] Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 [ 144.291416][ T6637] RSP: 002b:00007f0b5537db28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 144.291434][ T6637] RAX: ffffffffffffffda RBX: 00007f0b5537e6c0 RCX: 00007f0b55cdc84e [ 144.291447][ T6637] RDX: 0000000000000400 RSI: 00007f0b5537dc00 RDI: ffffffffffffff9c [ 144.291458][ T6637] RBP: 00007f0b5537dc00 R08: 0000000000000000 R09: 0000000000000000 [ 144.291469][ T6637] R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd [ 144.291480][ T6637] R13: 00007f0b55f96038 R14: 00007f0b55f95fa0 R15: 00007ffc62e6c1b8 [ 144.291500][ T6637] [ 144.291941][ T6637] Kernel Offset: disabled