KASAN: slab-use-after-free Write in binder_add_device ================================================================== BUG: KASAN: slab-use-after-free in hlist_add_head include/linux/list.h:1026 [inline] BUG: KASAN: slab-use-after-free in binder_add_device+0x64/0xac drivers/android/binder.c:6932 Write of size 8 at addr ffff0000ce01c408 by task syz-executor/5628 CPU: 1 UID: 0 PID: 5628 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00033-gcc8a0934d099 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C) __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0x178/0x530 mm/kasan/report.c:521 kasan_report+0xd8/0x138 mm/kasan/report.c:634 __asan_report_store8_noabort+0x20/0x2c mm/kasan/report_generic.c:386 hlist_add_head include/linux/list.h:1026 [inline] binder_add_device+0x64/0xac drivers/android/binder.c:6932 binderfs_binder_device_create+0x798/0x958 drivers/android/binderfs.c:210 binderfs_fill_super+0x7ac/0xc04 drivers/android/binderfs.c:729 vfs_get_super fs/super.c:1280 [inline] get_tree_nodev+0xb4/0x144 fs/super.c:1299 binderfs_fs_context_get_tree+0x28/0x38 drivers/android/binderfs.c:749 vfs_get_tree+0x90/0x28c fs/super.c:1814 do_new_mount+0x278/0x900 fs/namespace.c:3560 path_mount+0x590/0xe04 fs/namespace.c:3887 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount fs/namespace.c:4088 [inline] __arm64_sys_mount+0x4d8/0x5ac fs/namespace.c:4088 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Allocated by task 5622: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x40/0x78 mm/kasan/common.c:68 kasan_save_alloc_info+0x40/0x50 mm/kasan/generic.c:562 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x90/0xa8 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x2c8/0x3f0 mm/slub.c:4325 kmalloc_noprof include/linux/slab.h:901 [inline] kzalloc_noprof include/linux/slab.h:1037 [inline] binderfs_binder_device_create+0x18c/0x958 drivers/android/binderfs.c:147 binderfs_fill_super+0x7ac/0xc04 drivers/android/binderfs.c:729 vfs_get_super fs/super.c:1280 [inline] get_tree_nodev+0xb4/0x144 fs/super.c:1299 binderfs_fs_context_get_tree+0x28/0x38 drivers/android/binderfs.c:749 vfs_get_tree+0x90/0x28c fs/super.c:1814 do_new_mount+0x278/0x900 fs/namespace.c:3560 path_mount+0x590/0xe04 fs/namespace.c:3887 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount fs/namespace.c:4088 [inline] __arm64_sys_mount+0x4d8/0x5ac fs/namespace.c:4088 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Freed by task 5622: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x40/0x78 mm/kasan/common.c:68 kasan_save_free_info+0x54/0x6c mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x48/0x68 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2353 [inline] slab_free mm/slub.c:4609 [inline] kfree+0x16c/0x484 mm/slub.c:4757 binderfs_evict_inode+0x160/0x220 drivers/android/binderfs.c:278 evict+0x444/0x978 fs/inode.c:796 iput_final fs/inode.c:1946 [inline] iput+0x740/0x8e8 fs/inode.c:1972 dentry_unlink_inode+0x3a0/0x4e0 fs/dcache.c:440 __dentry_kill+0x178/0x5e8 fs/dcache.c:643 shrink_kill+0xd4/0x2cc fs/dcache.c:1088 shrink_dentry_list+0x31c/0x768 fs/dcache.c:1115 shrink_dcache_parent+0xc4/0x374 do_one_tree+0x30/0xfc fs/dcache.c:1578 shrink_dcache_for_umount+0xd8/0x188 fs/dcache.c:1595 generic_shutdown_super+0x68/0x2bc fs/super.c:620 kill_anon_super fs/super.c:1237 [inline] kill_litter_super+0x74/0xb8 fs/super.c:1247 binderfs_kill_super+0x44/0x9c drivers/android/binderfs.c:791 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1413 __cleanup_mnt+0x20/0x30 fs/namespace.c:1420 task_work_run+0x230/0x2e0 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x4e8/0x1acc kernel/exit.c:938 do_group_exit+0x194/0x22c kernel/exit.c:1087 get_signal+0x1418/0x1534 kernel/signal.c:3036 do_signal+0x22c/0x39e4 arch/arm64/kernel/signal.c:1658 do_notify_resume+0x74/0x1f4 arch/arm64/kernel/entry-common.c:148 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 The buggy address belongs to the object at ffff0000ce01c400 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of freed 512-byte region [ffff0000ce01c400, ffff0000ce01c600) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10e01c head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) page_type: f5(slab) raw: 05ffc00000000040 ffff0000c0001c80 0000000000000000 dead000000000001 raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 05ffc00000000040 ffff0000c0001c80 0000000000000000 dead000000000001 head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 05ffc00000000002 fffffdffc3380701 ffffffffffffffff 0000000000000000 head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000ce01c300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000ce01c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000ce01c400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000ce01c480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000ce01c500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Warning: Permanently added '10.128.0.95' (ED25519) to the list of known hosts. 1970/01/01 00:00:37 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:38 parsed 1 programs [ 40.945717][ T5616] cgroup: Unknown subsys name 'net' [ 41.214268][ T5616] cgroup: Unknown subsys name 'cpuset' [ 41.218103][ T5616] cgroup: Unknown subsys name 'rlimit' [ 41.219550][ T5616] cgroup: Unknown subsys name 'memory' [ 41.378984][ T5616] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS [ 50.096348][ T3705] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 50.098464][ T3705] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 50.113349][ T3705] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 50.115411][ T3705] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 50.129628][ T5628] ================================================================== [ 50.131578][ T5628] BUG: KASAN: slab-use-after-free in binder_add_device+0x64/0xac [ 50.133512][ T5628] Write of size 8 at addr ffff0000ce01c408 by task syz-executor/5628 [ 50.135534][ T5628] [ 50.136134][ T5628] CPU: 1 UID: 0 PID: 5628 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00033-gcc8a0934d099 #0 [ 50.136148][ T5628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 50.136155][ T5628] Call trace: [ 50.136158][ T5628] show_stack+0x2c/0x3c (C) [ 50.136176][ T5628] dump_stack_lvl+0xe4/0x150 [ 50.136188][ T5628] print_report+0x178/0x530 [ 50.136201][ T5628] kasan_report+0xd8/0x138 [ 50.136213][ T5628] __asan_report_store8_noabort+0x20/0x2c [ 50.136226][ T5628] binder_add_device+0x64/0xac [ 50.136237][ T5628] binderfs_binder_device_create+0x798/0x958 [ 50.136248][ T5628] binderfs_fill_super+0x7ac/0xc04 [ 50.136258][ T5628] get_tree_nodev+0xb4/0x144 [ 50.136270][ T5628] binderfs_fs_context_get_tree+0x28/0x38 [ 50.136280][ T5628] vfs_get_tree+0x90/0x28c [ 50.136291][ T5628] do_new_mount+0x278/0x900 [ 50.136302][ T5628] path_mount+0x590/0xe04 [ 50.136313][ T5628] __arm64_sys_mount+0x4d8/0x5ac [ 50.136324][ T5628] invoke_syscall+0x98/0x2b8 [ 50.136335][ T5628] el0_svc_common+0x130/0x23c [ 50.136346][ T5628] do_el0_svc+0x48/0x58 [ 50.136356][ T5628] el0_svc+0x54/0x168 [ 50.136369][ T5628] el0t_64_sync_handler+0x84/0x108 [ 50.136380][ T5628] el0t_64_sync+0x198/0x19c [ 50.136392][ T5628] [ 50.166630][ T5628] Allocated by task 5622: [ 50.167832][ T5628] kasan_save_track+0x40/0x78 [ 50.169039][ T5628] kasan_save_alloc_info+0x40/0x50 [ 50.170356][ T5628] __kasan_kmalloc+0x90/0xa8 [ 50.171647][ T5628] __kmalloc_cache_noprof+0x2c8/0x3f0 [ 50.173059][ T5628] binderfs_binder_device_create+0x18c/0x958 [ 50.174558][ T5628] binderfs_fill_super+0x7ac/0xc04 [ 50.175961][ T5628] get_tree_nodev+0xb4/0x144 [ 50.177155][ T5628] binderfs_fs_context_get_tree+0x28/0x38 [ 50.178609][ T5628] vfs_get_tree+0x90/0x28c [ 50.179759][ T5628] do_new_mount+0x278/0x900 [ 50.180914][ T5628] path_mount+0x590/0xe04 [ 50.182047][ T5628] __arm64_sys_mount+0x4d8/0x5ac [ 50.183297][ T5628] invoke_syscall+0x98/0x2b8 [ 50.184495][ T5628] el0_svc_common+0x130/0x23c [ 50.185736][ T5628] do_el0_svc+0x48/0x58 [ 50.186783][ T5628] el0_svc+0x54/0x168 [ 50.187773][ T5628] el0t_64_sync_handler+0x84/0x108 [ 50.189040][ T5628] el0t_64_sync+0x198/0x19c [ 50.190285][ T5628] [ 50.190897][ T5628] Freed by task 5622: [ 50.191939][ T5628] kasan_save_track+0x40/0x78 [ 50.193179][ T5628] kasan_save_free_info+0x54/0x6c [ 50.194374][ T5628] __kasan_slab_free+0x48/0x68 [ 50.195578][ T5628] kfree+0x16c/0x484 [ 50.196507][ T5628] binderfs_evict_inode+0x160/0x220 [ 50.197861][ T5628] evict+0x444/0x978 [ 50.198830][ T5628] iput+0x740/0x8e8 [ 50.199783][ T5628] dentry_unlink_inode+0x3a0/0x4e0 [ 50.201088][ T5628] __dentry_kill+0x178/0x5e8 [ 50.202230][ T5628] shrink_kill+0xd4/0x2cc [ 50.203411][ T5628] shrink_dentry_list+0x31c/0x768 [ 50.204750][ T5628] shrink_dcache_parent+0xc4/0x374 [ 50.206141][ T5628] do_one_tree+0x30/0xfc [ 50.207214][ T5628] shrink_dcache_for_umount+0xd8/0x188 [ 50.208634][ T5628] generic_shutdown_super+0x68/0x2bc [ 50.209878][ T5628] kill_litter_super+0x74/0xb8 [ 50.211051][ T5628] binderfs_kill_super+0x44/0x9c [ 50.212268][ T5628] deactivate_locked_super+0xc4/0x12c [ 50.213661][ T5628] deactivate_super+0xe0/0x100 [ 50.214846][ T5628] cleanup_mnt+0x34c/0x3dc [ 50.215970][ T5628] __cleanup_mnt+0x20/0x30 [ 50.217092][ T5628] task_work_run+0x230/0x2e0 [ 50.218253][ T5628] do_exit+0x4e8/0x1acc [ 50.219357][ T5628] do_group_exit+0x194/0x22c [ 50.220525][ T5628] get_signal+0x1418/0x1534 [ 50.221698][ T5628] do_signal+0x22c/0x39e4 [ 50.222802][ T5628] do_notify_resume+0x74/0x1f4 [ 50.224044][ T5628] el0_svc+0xac/0x168 [ 50.224999][ T5628] el0t_64_sync_handler+0x84/0x108 [ 50.226238][ T5628] el0t_64_sync+0x198/0x19c [ 50.227467][ T5628] [ 50.228052][ T5628] The buggy address belongs to the object at ffff0000ce01c400 [ 50.228052][ T5628] which belongs to the cache kmalloc-512 of size 512 [ 50.231615][ T5628] The buggy address is located 8 bytes inside of [ 50.231615][ T5628] freed 512-byte region [ffff0000ce01c400, ffff0000ce01c600) [ 50.235039][ T5628] [ 50.235683][ T5628] The buggy address belongs to the physical page: [ 50.237274][ T5628] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10e01c [ 50.239584][ T5628] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 50.241711][ T5628] anon flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) [ 50.243782][ T5628] page_type: f5(slab) [ 50.244823][ T5628] raw: 05ffc00000000040 ffff0000c0001c80 0000000000000000 dead000000000001 [ 50.247061][ T5628] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 50.249244][ T5628] head: 05ffc00000000040 ffff0000c0001c80 0000000000000000 dead000000000001 [ 50.251392][ T5628] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 50.253668][ T5628] head: 05ffc00000000002 fffffdffc3380701 ffffffffffffffff 0000000000000000 [ 50.255811][ T5628] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 [ 50.258046][ T5628] page dumped because: kasan: bad access detected [ 50.259670][ T5628] [ 50.260203][ T5628] Memory state around the buggy address: [ 50.261599][ T5628] ffff0000ce01c300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 50.263566][ T5628] ffff0000ce01c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 50.265579][ T5628] >ffff0000ce01c400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.267611][ T5628] ^ [ 50.268677][ T5628] ffff0000ce01c480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.270683][ T5628] ffff0000ce01c500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.272721][ T5628] ================================================================== [ 50.275887][ T5628] Disabling lock debugging due to kernel taint [ 50.705724][ T5644] chnl_net:caif_netlink_parms(): no params data found [ 50.723093][ T5644] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.725193][ T5644] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.727046][ T5644] bridge_slave_0: entered allmulticast mode [ 50.728834][ T5644] bridge_slave_0: entered promiscuous mode [ 50.731614][ T5644] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.733568][ T5644] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.735369][ T5644] bridge_slave_1: entered allmulticast mode [ 50.737131][ T5644] bridge_slave_1: entered promiscuous mode [ 50.744509][ T5644] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 50.747736][ T5644] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.803406][ T5644] team0: Port device team_slave_0 added [ 50.805685][ T5644] team0: Port device team_slave_1 added [ 50.812189][ T5644] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 50.814255][ T5644] 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 1560 would solve the problem. [ 50.820758][ T5644] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 50.824031][ T5644] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 50.825783][ T5644] 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 1560 would solve the problem. [ 50.832165][ T5644] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 50.843242][ T5644] hsr_slave_0: entered promiscuous mode [ 50.844951][ T5644] hsr_slave_1: entered promiscuous mode [ 50.987065][ T5644] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 50.990053][ T5644] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 50.993139][ T5644] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 50.995999][ T5644] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 51.033906][ T5644] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.035741][ T5644] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.037744][ T5644] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.039507][ T5644] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.058487][ T5644] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.063593][ T3911] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.065744][ T3911] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.069961][ T5644] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.074866][ T253] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.076683][ T253] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.080260][ T3911] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.082185][ T3911] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.188448][ T5644] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.200077][ T5644] veth0_vlan: entered promiscuous mode [ 51.203757][ T5644] veth1_vlan: entered promiscuous mode [ 51.210779][ T5644] veth0_macvtap: entered promiscuous mode [ 51.215889][ T5644] veth1_macvtap: entered promiscuous mode [ 51.220627][ T5644] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.223709][ T5644] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 51.226641][ T5644] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.228825][ T5644] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.230983][ T5644] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.234276][ T5644] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.793406][ T3705] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 51.863247][ T3705] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 51.911211][ T5682] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 51.914648][ T5682] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 51.916481][ T5682] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 51.918543][ T5682] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 51.920389][ T5682] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 51.922587][ T5682] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.933407][ T3705] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 52.023341][ T3705] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:52 executed programs: 0 [ 52.354543][ T5682] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.356544][ T5682] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.358475][ T5682] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.360538][ T5682] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.363167][ T5682] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.365082][ T5682] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.414108][ T5709] chnl_net:caif_netlink_parms(): no params data found [ 52.430461][ T5709] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.432385][ T5709] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.434165][ T5709] bridge_slave_0: entered allmulticast mode [ 52.435918][ T5709] bridge_slave_0: entered promiscuous mode [ 52.438683][ T5709] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.440613][ T5709] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.443106][ T5709] bridge_slave_1: entered allmulticast mode [ 52.444822][ T5709] bridge_slave_1: entered promiscuous mode [ 52.452341][ T5709] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.455501][ T5709] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.465049][ T5709] team0: Port device team_slave_0 added [ 52.467250][ T5709] team0: Port device team_slave_1 added [ 52.473856][ T5709] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.475538][ T5709] 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 1560 would solve the problem. [ 52.481962][ T5709] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.485821][ T5709] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.487553][ T5709] 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 1560 would solve the problem. [ 52.494153][ T5709] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.506590][ T5709] hsr_slave_0: entered promiscuous mode [ 52.508241][ T5709] hsr_slave_1: entered promiscuous mode [ 52.509792][ T5709] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 52.511666][ T5709] Cannot create hsr debugfs directory [ 54.412296][ T5682] Bluetooth: hci0: command tx timeout [ 54.692419][ T3705] bridge_slave_1: left allmulticast mode [ 54.693827][ T3705] bridge_slave_1: left promiscuous mode [ 54.695197][ T3705] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.707902][ T3705] bridge_slave_0: left allmulticast mode [ 54.709332][ T3705] bridge_slave_0: left promiscuous mode [ 54.710772][ T3705] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.284060][ T3705] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 56.323526][ T3705] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 56.383066][ T3705] bond0 (unregistering): Released all slaves [ 56.470347][ T3705] hsr_slave_0: left promiscuous mode [ 56.471970][ T3705] hsr_slave_1: left promiscuous mode [ 56.474960][ T3705] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 56.476692][ T3705] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 56.478870][ T3705] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 56.480760][ T3705] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 56.484462][ T3705] veth1_macvtap: left promiscuous mode [ 56.485842][ T3705] veth0_macvtap: left promiscuous mode [ 56.487128][ T3705] veth1_vlan: left promiscuous mode [ 56.488366][ T3705] veth0_vlan: left promiscuous mode [ 56.492307][ T5682] Bluetooth: hci0: command tx timeout [ 58.512919][ T3705] team0 (unregistering): Port device team_slave_1 removed [ 58.572214][ T5682] Bluetooth: hci0: command tx timeout [ 58.712778][ T3705] team0 (unregistering): Port device team_slave_0 removed syzkaller build log: go env (err=) GO111MODULE='auto' GOARCH='amd64' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFLAGS='' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs-2/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/syzkaller/jobs-2/linux/gopath/pkg/mod/golang.org/toolchain@v0.0.1-go1.23.6.linux-amd64' GOSUMDB='sum.golang.org' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/syzkaller/jobs-2/linux/gopath/pkg/mod/golang.org/toolchain@v0.0.1-go1.23.6.linux-amd64/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.23.6' GODEBUG='' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GCCGO='gccgo' GOAMD64='v1' AR='ar' CC='gcc' CXX='g++' CGO_ENABLED='1' GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod' GOWORK='' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' PKG_CONFIG='pkg-config' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2383079480=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at ef44b750e8 nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=arm64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=ef44b750e8fab8d6d5cb84920680581b13e0d470 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250207-152458'" -o ./bin/linux_arm64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_arm64 aarch64-linux-gnu-g++ -o ./bin/linux_arm64/syz-executor executor/executor.cc \ -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_arm64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"ef44b750e8fab8d6d5cb84920680581b13e0d470\" /usr/lib/gcc-cross/aarch64-linux-gnu/12/../../../../aarch64-linux-gnu/bin/ld: /tmp/cccX2wWX.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0xd8): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking