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 ffff0000d48c7408 by task syz-executor/6068 CPU: 0 UID: 0 PID: 6068 Comm: syz-executor Not tainted 6.14.0-rc5-syzkaller-g99fa936e8e4f #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: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+0x7fc/0x9fc drivers/android/binderfs.c:210 binderfs_fill_super+0x7f4/0xc8c 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+0x4f4/0x5d0 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 6061: 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+0xac/0xc4 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x2cc/0x428 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/0x9fc drivers/android/binderfs.c:147 binderfs_fill_super+0x7f4/0xc8c 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+0x4f4/0x5d0 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 6061: 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+0x64/0x8c 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+0x180/0x478 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+0x13e4/0x1500 kernel/signal.c:3036 do_signal+0x22c/0x3a04 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 ffff0000d48c7400 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of freed 512-byte region [ffff0000d48c7400, ffff0000d48c7600) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1148c4 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 0000000000000001 raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 05ffc00000000040 ffff0000c0001c80 0000000000000000 0000000000000001 head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 05ffc00000000002 fffffdffc3523101 ffffffffffffffff 0000000000000000 head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d48c7300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d48c7380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000d48c7400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000d48c7480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000d48c7500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Warning: Permanently added '10.128.0.180' (ED25519) to the list of known hosts. 1970/01/01 00:00:35 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:36 parsed 1 programs [ 39.390253][ T6055] cgroup: Unknown subsys name 'net' [ 39.604646][ T6055] cgroup: Unknown subsys name 'cpuset' [ 39.607955][ T6055] cgroup: Unknown subsys name 'rlimit' [ 39.609286][ T6055] cgroup: Unknown subsys name 'memory' [ 39.815943][ T6055] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS [ 53.528867][ T6068] ================================================================== [ 53.530704][ T6068] BUG: KASAN: slab-use-after-free in binder_add_device+0x64/0xac [ 53.532340][ T6068] Write of size 8 at addr ffff0000d48c7408 by task syz-executor/6068 [ 53.534067][ T6068] [ 53.534577][ T6068] CPU: 0 UID: 0 PID: 6068 Comm: syz-executor Not tainted 6.14.0-rc5-syzkaller-g99fa936e8e4f #0 [ 53.534592][ T6068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 53.534601][ T6068] Call trace: [ 53.534604][ T6068] show_stack+0x2c/0x3c (C) [ 53.534622][ T6068] dump_stack_lvl+0xe4/0x150 [ 53.534636][ T6068] print_report+0x178/0x530 [ 53.534649][ T6068] kasan_report+0xd8/0x138 [ 53.534660][ T6068] __asan_report_store8_noabort+0x20/0x2c [ 53.534674][ T6068] binder_add_device+0x64/0xac [ 53.534688][ T6068] binderfs_binder_device_create+0x7fc/0x9fc [ 53.534702][ T6068] binderfs_fill_super+0x7f4/0xc8c [ 53.534715][ T6068] get_tree_nodev+0xb4/0x144 [ 53.534727][ T6068] binderfs_fs_context_get_tree+0x28/0x38 [ 53.534741][ T6068] vfs_get_tree+0x90/0x28c [ 53.534753][ T6068] do_new_mount+0x278/0x900 [ 53.534765][ T6068] path_mount+0x590/0xe04 [ 53.534777][ T6068] __arm64_sys_mount+0x4f4/0x5d0 [ 53.534789][ T6068] invoke_syscall+0x98/0x2b8 [ 53.534801][ T6068] el0_svc_common+0x130/0x23c [ 53.534813][ T6068] do_el0_svc+0x48/0x58 [ 53.534832][ T6068] el0_svc+0x54/0x168 [ 53.534847][ T6068] el0t_64_sync_handler+0x84/0x108 [ 53.534860][ T6068] el0t_64_sync+0x198/0x19c [ 53.534877][ T6068] [ 53.561367][ T6068] Allocated by task 6061: [ 53.562290][ T6068] kasan_save_track+0x40/0x78 [ 53.563335][ T6068] kasan_save_alloc_info+0x40/0x50 [ 53.564474][ T6068] __kasan_kmalloc+0xac/0xc4 [ 53.565522][ T6068] __kmalloc_cache_noprof+0x2cc/0x428 [ 53.566736][ T6068] binderfs_binder_device_create+0x18c/0x9fc [ 53.568134][ T6068] binderfs_fill_super+0x7f4/0xc8c [ 53.569243][ T6068] get_tree_nodev+0xb4/0x144 [ 53.570238][ T6068] binderfs_fs_context_get_tree+0x28/0x38 [ 53.571488][ T6068] vfs_get_tree+0x90/0x28c [ 53.572474][ T6068] do_new_mount+0x278/0x900 [ 53.573476][ T6068] path_mount+0x590/0xe04 [ 53.574450][ T6068] __arm64_sys_mount+0x4f4/0x5d0 [ 53.575582][ T6068] invoke_syscall+0x98/0x2b8 [ 53.576606][ T6068] el0_svc_common+0x130/0x23c [ 53.577617][ T6068] do_el0_svc+0x48/0x58 [ 53.578609][ T6068] el0_svc+0x54/0x168 [ 53.579462][ T6068] el0t_64_sync_handler+0x84/0x108 [ 53.580585][ T6068] el0t_64_sync+0x198/0x19c [ 53.581605][ T6068] [ 53.582141][ T6068] Freed by task 6061: [ 53.583046][ T6068] kasan_save_track+0x40/0x78 [ 53.584089][ T6068] kasan_save_free_info+0x54/0x6c [ 53.585222][ T6068] __kasan_slab_free+0x64/0x8c [ 53.586290][ T6068] kfree+0x180/0x478 [ 53.587145][ T6068] binderfs_evict_inode+0x160/0x220 [ 53.588311][ T6068] evict+0x444/0x978 [ 53.589205][ T6068] iput+0x740/0x8e8 [ 53.590083][ T6068] dentry_unlink_inode+0x3a0/0x4e0 [ 53.591224][ T6068] __dentry_kill+0x178/0x5e8 [ 53.592246][ T6068] shrink_kill+0xd4/0x2cc [ 53.593248][ T6068] shrink_dentry_list+0x31c/0x768 [ 53.594332][ T6068] shrink_dcache_parent+0xc4/0x374 [ 53.595459][ T6068] do_one_tree+0x30/0xfc [ 53.596402][ T6068] shrink_dcache_for_umount+0xd8/0x188 [ 53.597582][ T6068] generic_shutdown_super+0x68/0x2bc [ 53.598746][ T6068] kill_litter_super+0x74/0xb8 [ 53.599821][ T6068] binderfs_kill_super+0x44/0x9c [ 53.600905][ T6068] deactivate_locked_super+0xc4/0x12c [ 53.602077][ T6068] deactivate_super+0xe0/0x100 [ 53.603164][ T6068] cleanup_mnt+0x34c/0x3dc [ 53.604137][ T6068] __cleanup_mnt+0x20/0x30 [ 53.605133][ T6068] task_work_run+0x230/0x2e0 [ 53.606239][ T6068] do_exit+0x4e8/0x1acc [ 53.607217][ T6068] do_group_exit+0x194/0x22c [ 53.608250][ T6068] get_signal+0x13e4/0x1500 [ 53.609241][ T6068] do_signal+0x22c/0x3a04 [ 53.610180][ T6068] do_notify_resume+0x74/0x1f4 [ 53.611226][ T6068] el0_svc+0xac/0x168 [ 53.612156][ T6068] el0t_64_sync_handler+0x84/0x108 [ 53.613267][ T6068] el0t_64_sync+0x198/0x19c [ 53.614302][ T6068] [ 53.614846][ T6068] The buggy address belongs to the object at ffff0000d48c7400 [ 53.614846][ T6068] which belongs to the cache kmalloc-512 of size 512 [ 53.617947][ T6068] The buggy address is located 8 bytes inside of [ 53.617947][ T6068] freed 512-byte region [ffff0000d48c7400, ffff0000d48c7600) [ 53.620957][ T6068] [ 53.621464][ T6068] The buggy address belongs to the physical page: [ 53.622925][ T6068] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1148c4 [ 53.624979][ T6068] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 53.626788][ T6068] anon flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) [ 53.628584][ T6068] page_type: f5(slab) [ 53.629459][ T6068] raw: 05ffc00000000040 ffff0000c0001c80 0000000000000000 0000000000000001 [ 53.631401][ T6068] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 53.633299][ T6068] head: 05ffc00000000040 ffff0000c0001c80 0000000000000000 0000000000000001 [ 53.635276][ T6068] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 53.637135][ T6068] head: 05ffc00000000002 fffffdffc3523101 ffffffffffffffff 0000000000000000 [ 53.639034][ T6068] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 [ 53.640988][ T6068] page dumped because: kasan: bad access detected [ 53.642379][ T6068] [ 53.642887][ T6068] Memory state around the buggy address: [ 53.644166][ T6068] ffff0000d48c7300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 53.645954][ T6068] ffff0000d48c7380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 53.647760][ T6068] >ffff0000d48c7400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.649550][ T6068] ^ [ 53.650509][ T6068] ffff0000d48c7480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.652220][ T6068] ffff0000d48c7500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.654014][ T6068] ================================================================== [ 53.656338][ T6068] Disabling lock debugging due to kernel taint [ 54.184103][ T6095] chnl_net:caif_netlink_parms(): no params data found [ 54.202032][ T6095] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.203761][ T6095] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.205367][ T6095] bridge_slave_0: entered allmulticast mode [ 54.207004][ T6095] bridge_slave_0: entered promiscuous mode [ 54.209203][ T6095] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.210821][ T6095] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.212933][ T6095] bridge_slave_1: entered allmulticast mode [ 54.214528][ T6095] bridge_slave_1: entered promiscuous mode [ 54.222817][ T6095] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.225950][ T6095] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.255221][ T6095] team0: Port device team_slave_0 added [ 54.257253][ T6095] team0: Port device team_slave_1 added [ 54.264443][ T6095] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.266111][ T6095] 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. [ 54.271561][ T6095] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.274889][ T6095] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.276448][ T6095] 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. [ 54.282689][ T6095] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.293389][ T6095] hsr_slave_0: entered promiscuous mode [ 54.295125][ T6095] hsr_slave_1: entered promiscuous mode [ 54.330495][ T6095] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.333252][ T6095] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.335707][ T6095] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 54.338174][ T6095] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 54.496125][ T6095] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.497835][ T6095] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.499410][ T6095] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.500977][ T6095] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.518707][ T6095] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.523551][ T6095] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.526516][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.528428][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.533553][ T211] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.535168][ T211] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.538609][ T211] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.540241][ T211] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.591433][ T6095] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.604034][ T6095] veth0_vlan: entered promiscuous mode [ 54.607128][ T6095] veth1_vlan: entered promiscuous mode [ 54.617851][ T6095] veth0_macvtap: entered promiscuous mode [ 54.620239][ T6095] veth1_macvtap: entered promiscuous mode [ 54.625237][ T6095] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.628687][ T6095] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.631573][ T6095] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.634168][ T6095] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.636105][ T6095] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.637956][ T6095] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.013445][ T13] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.103703][ T13] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.183343][ T13] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.264587][ T13] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 55.288763][ T54] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 55.290408][ T54] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 55.292043][ T54] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 55.304454][ T54] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 55.306331][ T54] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 55.307992][ T54] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 55.438618][ T44] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.440394][ T44] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 55.449799][ T4221] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 55.451634][ T4221] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 1970/01/01 00:00:55 executed programs: 0 [ 55.770464][ T5617] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 55.772938][ T5617] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 55.774709][ T5617] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 55.776627][ T5617] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 55.778401][ T5617] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 55.780184][ T5617] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 55.823579][ T6149] chnl_net:caif_netlink_parms(): no params data found [ 55.840589][ T6149] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.842406][ T6149] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.844002][ T6149] bridge_slave_0: entered allmulticast mode [ 55.845591][ T6149] bridge_slave_0: entered promiscuous mode [ 55.848382][ T6149] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.849997][ T6149] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.851638][ T6149] bridge_slave_1: entered allmulticast mode [ 55.853781][ T6149] bridge_slave_1: entered promiscuous mode [ 55.861201][ T6149] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.864130][ T6149] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.871599][ T6149] team0: Port device team_slave_0 added [ 55.874102][ T6149] team0: Port device team_slave_1 added [ 55.880333][ T6149] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 55.881770][ T6149] 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. [ 55.887683][ T6149] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 55.890571][ T6149] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 55.892195][ T6149] 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. [ 55.898119][ T6149] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 55.908714][ T6149] hsr_slave_0: entered promiscuous mode [ 55.910388][ T6149] hsr_slave_1: entered promiscuous mode [ 55.911801][ T6149] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 55.913592][ T6149] Cannot create hsr debugfs directory [ 57.852500][ T5617] Bluetooth: hci0: command tx timeout [ 58.390847][ T13] bridge_slave_1: left allmulticast mode [ 58.392190][ T13] bridge_slave_1: left promiscuous mode [ 58.393866][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.397060][ T13] bridge_slave_0: left allmulticast mode [ 58.398324][ T13] bridge_slave_0: left promiscuous mode [ 58.399566][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.932509][ T5617] Bluetooth: hci0: command tx timeout [ 59.993769][ T13] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 60.043770][ T13] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 60.083365][ T13] bond0 (unregistering): Released all slaves [ 60.179266][ T13] hsr_slave_0: left promiscuous mode [ 60.180747][ T13] hsr_slave_1: left promiscuous mode [ 60.184672][ T13] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 60.186331][ T13] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 60.188282][ T13] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 60.190002][ T13] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 60.193693][ T13] veth1_macvtap: left promiscuous mode [ 60.195141][ T13] veth0_macvtap: left promiscuous mode [ 60.196451][ T13] veth1_vlan: left promiscuous mode [ 60.197682][ T13] veth0_vlan: left promiscuous mode [ 62.012458][ T5617] Bluetooth: hci0: command tx timeout [ 62.183954][ T13] team0 (unregistering): Port device team_slave_1 removed [ 62.353106][ T13] 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-build3165476256=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at c3901742785 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=c3901742785ff25afdc6f470af7b25b69d7c4f2f -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250301-144328'" -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=\"c3901742785ff25afdc6f470af7b25b69d7c4f2f\" /usr/lib/gcc-cross/aarch64-linux-gnu/12/../../../../aarch64-linux-gnu/bin/ld: /tmp/ccRSn09I.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