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 ffff0000d4ea7c08 by task syz-executor/5620 CPU: 1 UID: 0 PID: 5620 Comm: syz-executor Not tainted 6.13.0-syzkaller-10003-ga86bf2283d2c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 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:378 [inline] print_report+0x178/0x518 mm/kasan/report.c:489 kasan_report+0xd8/0x138 mm/kasan/report.c:602 __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 5615: 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 5615: 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 ffff0000d4ea7c00 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of freed 512-byte region [ffff0000d4ea7c00, ffff0000d4ea7e00) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x114ea4 head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) page_type: f5(slab) raw: 05ffc00000000040 ffff0000c0001c80 dead000000000100 dead000000000122 raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 05ffc00000000040 ffff0000c0001c80 dead000000000100 dead000000000122 head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 05ffc00000000002 fffffdffc353a901 ffffffffffffffff 0000000000000000 head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d4ea7b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d4ea7b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000d4ea7c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000d4ea7c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000d4ea7d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Warning: Permanently added '10.128.0.219' (ED25519) to the list of known hosts. 1970/01/01 00:00:32 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:33 parsed 1 programs [ 35.354690][ T5608] cgroup: Unknown subsys name 'net' [ 35.586081][ T5608] cgroup: Unknown subsys name 'cpuset' [ 35.590258][ T5608] cgroup: Unknown subsys name 'rlimit' [ 35.591908][ T5608] cgroup: Unknown subsys name 'memory' [ 35.748497][ T5608] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS [ 44.847509][ T5620] ================================================================== [ 44.849694][ T5620] BUG: KASAN: slab-use-after-free in binder_add_device+0x64/0xac [ 44.851742][ T5620] Write of size 8 at addr ffff0000d4ea7c08 by task syz-executor/5620 [ 44.853904][ T5620] [ 44.854509][ T5620] CPU: 1 UID: 0 PID: 5620 Comm: syz-executor Not tainted 6.13.0-syzkaller-10003-ga86bf2283d2c #0 [ 44.854523][ T5620] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 44.854530][ T5620] Call trace: [ 44.854534][ T5620] show_stack+0x2c/0x3c (C) [ 44.854550][ T5620] dump_stack_lvl+0xe4/0x150 [ 44.854563][ T5620] print_report+0x178/0x518 [ 44.854576][ T5620] kasan_report+0xd8/0x138 [ 44.854595][ T5620] __asan_report_store8_noabort+0x20/0x2c [ 44.854609][ T5620] binder_add_device+0x64/0xac [ 44.854623][ T5620] binderfs_binder_device_create+0x798/0x958 [ 44.854636][ T5620] binderfs_fill_super+0x7ac/0xc04 [ 44.854649][ T5620] get_tree_nodev+0xb4/0x144 [ 44.854659][ T5620] binderfs_fs_context_get_tree+0x28/0x38 [ 44.854672][ T5620] vfs_get_tree+0x90/0x28c [ 44.854683][ T5620] do_new_mount+0x278/0x900 [ 44.854694][ T5620] path_mount+0x590/0xe04 [ 44.854704][ T5620] __arm64_sys_mount+0x4d8/0x5ac [ 44.854715][ T5620] invoke_syscall+0x98/0x2b8 [ 44.854726][ T5620] el0_svc_common+0x130/0x23c [ 44.854736][ T5620] do_el0_svc+0x48/0x58 [ 44.854746][ T5620] el0_svc+0x54/0x168 [ 44.854758][ T5620] el0t_64_sync_handler+0x84/0x108 [ 44.854768][ T5620] el0t_64_sync+0x198/0x19c [ 44.854779][ T5620] [ 44.886902][ T5620] Allocated by task 5615: [ 44.888020][ T5620] kasan_save_track+0x40/0x78 [ 44.889294][ T5620] kasan_save_alloc_info+0x40/0x50 [ 44.890709][ T5620] __kasan_kmalloc+0x90/0xa8 [ 44.892011][ T5620] __kmalloc_cache_noprof+0x2c8/0x3f0 [ 44.893503][ T5620] binderfs_binder_device_create+0x18c/0x958 [ 44.895093][ T5620] binderfs_fill_super+0x7ac/0xc04 [ 44.896456][ T5620] get_tree_nodev+0xb4/0x144 [ 44.897632][ T5620] binderfs_fs_context_get_tree+0x28/0x38 [ 44.899116][ T5620] vfs_get_tree+0x90/0x28c [ 44.900371][ T5620] do_new_mount+0x278/0x900 [ 44.901526][ T5620] path_mount+0x590/0xe04 [ 44.902716][ T5620] __arm64_sys_mount+0x4d8/0x5ac [ 44.904053][ T5620] invoke_syscall+0x98/0x2b8 [ 44.905343][ T5620] el0_svc_common+0x130/0x23c [ 44.906581][ T5620] do_el0_svc+0x48/0x58 [ 44.907652][ T5620] el0_svc+0x54/0x168 [ 44.908680][ T5620] el0t_64_sync_handler+0x84/0x108 [ 44.910024][ T5620] el0t_64_sync+0x198/0x19c [ 44.911169][ T5620] [ 44.911861][ T5620] Freed by task 5615: [ 44.912962][ T5620] kasan_save_track+0x40/0x78 [ 44.914268][ T5620] kasan_save_free_info+0x54/0x6c [ 44.915703][ T5620] __kasan_slab_free+0x48/0x68 [ 44.917034][ T5620] kfree+0x16c/0x484 [ 44.918152][ T5620] binderfs_evict_inode+0x160/0x220 [ 44.919593][ T5620] evict+0x444/0x978 [ 44.920631][ T5620] iput+0x740/0x8e8 [ 44.921637][ T5620] dentry_unlink_inode+0x3a0/0x4e0 [ 44.923085][ T5620] __dentry_kill+0x178/0x5e8 [ 44.924259][ T5620] shrink_kill+0xd4/0x2cc [ 44.925406][ T5620] shrink_dentry_list+0x31c/0x768 [ 44.926757][ T5620] shrink_dcache_parent+0xc4/0x374 [ 44.928132][ T5620] do_one_tree+0x30/0xfc [ 44.929321][ T5620] shrink_dcache_for_umount+0xd8/0x188 [ 44.930824][ T5620] generic_shutdown_super+0x68/0x2bc [ 44.932302][ T5620] kill_litter_super+0x74/0xb8 [ 44.933570][ T5620] binderfs_kill_super+0x44/0x9c [ 44.934898][ T5620] deactivate_locked_super+0xc4/0x12c [ 44.936422][ T5620] deactivate_super+0xe0/0x100 [ 44.937665][ T5620] cleanup_mnt+0x34c/0x3dc [ 44.938815][ T5620] __cleanup_mnt+0x20/0x30 [ 44.939993][ T5620] task_work_run+0x230/0x2e0 [ 44.941187][ T5620] do_exit+0x4e8/0x1acc [ 44.942262][ T5620] do_group_exit+0x194/0x22c [ 44.943433][ T5620] get_signal+0x1418/0x1534 [ 44.944665][ T5620] do_signal+0x22c/0x39e4 [ 44.945821][ T5620] do_notify_resume+0x74/0x1f4 [ 44.947126][ T5620] el0_svc+0xac/0x168 [ 44.948169][ T5620] el0t_64_sync_handler+0x84/0x108 [ 44.949492][ T5620] el0t_64_sync+0x198/0x19c [ 44.950695][ T5620] [ 44.951326][ T5620] The buggy address belongs to the object at ffff0000d4ea7c00 [ 44.951326][ T5620] which belongs to the cache kmalloc-512 of size 512 [ 44.954937][ T5620] The buggy address is located 8 bytes inside of [ 44.954937][ T5620] freed 512-byte region [ffff0000d4ea7c00, ffff0000d4ea7e00) [ 44.958640][ T5620] [ 44.959257][ T5620] The buggy address belongs to the physical page: [ 44.960891][ T5620] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x114ea4 [ 44.963187][ T5620] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 44.965539][ T5620] flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) [ 44.967583][ T5620] page_type: f5(slab) [ 44.968724][ T5620] raw: 05ffc00000000040 ffff0000c0001c80 dead000000000100 dead000000000122 [ 44.971029][ T5620] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 44.973277][ T5620] head: 05ffc00000000040 ffff0000c0001c80 dead000000000100 dead000000000122 [ 44.975635][ T5620] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 44.977965][ T5620] head: 05ffc00000000002 fffffdffc353a901 ffffffffffffffff 0000000000000000 [ 44.980315][ T5620] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 [ 44.982593][ T5620] page dumped because: kasan: bad access detected [ 44.984350][ T5620] [ 44.984945][ T5620] Memory state around the buggy address: [ 44.986489][ T5620] ffff0000d4ea7b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 44.988687][ T5620] ffff0000d4ea7b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 44.990842][ T5620] >ffff0000d4ea7c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 44.992981][ T5620] ^ [ 44.994106][ T5620] ffff0000d4ea7c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 44.996311][ T5620] ffff0000d4ea7d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 44.998470][ T5620] ================================================================== [ 45.003288][ T5620] Disabling lock debugging due to kernel taint [ 45.738033][ T5660] chnl_net:caif_netlink_parms(): no params data found [ 45.844314][ T5660] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.846269][ T5660] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.848104][ T5660] bridge_slave_0: entered allmulticast mode [ 45.849959][ T5660] bridge_slave_0: entered promiscuous mode [ 45.852473][ T5660] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.855212][ T5660] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.857259][ T5660] bridge_slave_1: entered allmulticast mode [ 45.859034][ T5660] bridge_slave_1: entered promiscuous mode [ 45.866727][ T5660] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 45.869908][ T5660] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 45.877929][ T5660] team0: Port device team_slave_0 added [ 45.880087][ T5660] team0: Port device team_slave_1 added [ 45.886222][ T5660] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 45.888134][ T5660] 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. [ 45.895113][ T5660] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 45.898449][ T5660] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 45.900249][ T5660] 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. [ 45.907361][ T5660] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 45.939236][ T5660] hsr_slave_0: entered promiscuous mode [ 45.941070][ T5660] hsr_slave_1: entered promiscuous mode [ 45.975651][ T5660] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 45.978652][ T5660] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 45.981345][ T5660] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 45.984062][ T5660] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 45.992588][ T5660] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.994473][ T5660] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.996460][ T5660] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.998387][ T5660] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.016423][ T5660] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.021174][ T1695] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.023483][ T1695] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.029293][ T5660] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.033013][ T1695] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.035023][ T1695] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.045045][ T3908] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.047046][ T3908] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.184920][ T5660] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.197095][ T5660] veth0_vlan: entered promiscuous mode [ 46.200332][ T5660] veth1_vlan: entered promiscuous mode [ 46.209318][ T5660] veth0_macvtap: entered promiscuous mode [ 46.211870][ T5660] veth1_macvtap: entered promiscuous mode [ 46.217481][ T5660] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 46.221336][ T5660] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 46.225400][ T5660] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.227773][ T5660] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.229991][ T5660] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.232194][ T5660] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.555337][ T116] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 46.576772][ T669] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.578801][ T669] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.585243][ T669] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 46.587243][ T669] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 46.645178][ T116] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 46.707485][ T5688] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 46.709692][ T5688] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 46.711717][ T5688] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 46.715122][ T5688] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 46.718122][ T5688] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 46.720154][ T5688] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 46.725746][ T116] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 46.795235][ T116] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:47 executed programs: 0 [ 47.064942][ T5179] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 47.067003][ T5179] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 47.068955][ T5179] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 47.071175][ T5179] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 47.073251][ T5179] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 47.075767][ T5179] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 47.120248][ T5703] chnl_net:caif_netlink_parms(): no params data found [ 47.136324][ T5703] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.138290][ T5703] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.140208][ T5703] bridge_slave_0: entered allmulticast mode [ 47.142079][ T5703] bridge_slave_0: entered promiscuous mode [ 47.145189][ T5703] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.147032][ T5703] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.148929][ T5703] bridge_slave_1: entered allmulticast mode [ 47.150767][ T5703] bridge_slave_1: entered promiscuous mode [ 47.158802][ T5703] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 47.162057][ T5703] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 47.169729][ T5703] team0: Port device team_slave_0 added [ 47.171975][ T5703] team0: Port device team_slave_1 added [ 47.178753][ T5703] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 47.180717][ T5703] 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. [ 47.187772][ T5703] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 47.190962][ T5703] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 47.192825][ T5703] 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. [ 47.200174][ T5703] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 47.210777][ T5703] hsr_slave_0: entered promiscuous mode [ 47.212502][ T5703] hsr_slave_1: entered promiscuous mode [ 47.214352][ T5703] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 47.216466][ T5703] Cannot create hsr debugfs directory [ 49.134279][ T5179] Bluetooth: hci0: command tx timeout [ 49.978980][ T116] bridge_slave_1: left allmulticast mode [ 49.980538][ T116] bridge_slave_1: left promiscuous mode [ 49.982187][ T116] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.984928][ T116] bridge_slave_0: left allmulticast mode [ 49.986554][ T116] bridge_slave_0: left promiscuous mode [ 49.988003][ T116] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.214193][ T5179] Bluetooth: hci0: command tx timeout [ 51.515497][ T116] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 51.555511][ T116] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 51.595122][ T116] bond0 (unregistering): Released all slaves [ 51.703762][ T116] hsr_slave_0: left promiscuous mode [ 51.705849][ T116] hsr_slave_1: left promiscuous mode [ 51.707477][ T116] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 51.709447][ T116] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 51.711570][ T116] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 51.713544][ T116] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 51.717335][ T116] veth1_macvtap: left promiscuous mode [ 51.718822][ T116] veth0_macvtap: left promiscuous mode [ 51.720275][ T116] veth1_vlan: left promiscuous mode [ 51.721869][ T116] veth0_vlan: left promiscuous mode [ 53.294183][ T5179] Bluetooth: hci0: command tx timeout [ 53.474781][ T116] team0 (unregistering): Port device team_slave_1 removed [ 53.715374][ T116] 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='/usr/local/go' GOSUMDB='sum.golang.org' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.22.7' 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-build3684024065=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at 568559e4e6 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: downloading google.golang.org/protobuf v1.36.4 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=568559e4e604140cecd9fc4835eaa0298a1cadcc -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250201-125757'" -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=\"568559e4e604140cecd9fc4835eaa0298a1cadcc\" go: downloading golang.org/x/oauth2 v0.25.0 /usr/lib/gcc-cross/aarch64-linux-gnu/12/../../../../aarch64-linux-gnu/bin/ld: /tmp/ccdamupX.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