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 ffff0000d14d0008 by task syz-executor/5631 CPU: 0 UID: 0 PID: 5631 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00077-gf4ce1f3318ad #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 5624: 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 5624: 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 ffff0000d14d0000 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of freed 512-byte region [ffff0000d14d0000, ffff0000d14d0200) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1114d0 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 fffffdffc3453401 ffffffffffffffff 0000000000000000 head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d14cff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000d14cff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000d14d0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000d14d0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000d14d0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Warning: Permanently added '10.128.0.190' (ED25519) to the list of known hosts. 1970/01/01 00:00:39 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:39 parsed 1 programs [ 42.251288][ T5616] cgroup: Unknown subsys name 'net' [ 42.505607][ T5616] cgroup: Unknown subsys name 'cpuset' [ 42.509021][ T5616] cgroup: Unknown subsys name 'rlimit' [ 42.510466][ T5616] cgroup: Unknown subsys name 'memory' [ 42.707503][ T5616] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS [ 52.008523][ T5631] ================================================================== [ 52.010507][ T5631] BUG: KASAN: slab-use-after-free in binder_add_device+0x64/0xac [ 52.012391][ T5631] Write of size 8 at addr ffff0000d14d0008 by task syz-executor/5631 [ 52.014542][ T5631] [ 52.015148][ T5631] CPU: 0 UID: 0 PID: 5631 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00077-gf4ce1f3318ad #0 [ 52.015170][ T5631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 52.015178][ T5631] Call trace: [ 52.015182][ T5631] show_stack+0x2c/0x3c (C) [ 52.015201][ T5631] dump_stack_lvl+0xe4/0x150 [ 52.015221][ T5631] print_report+0x178/0x530 [ 52.015236][ T5631] kasan_report+0xd8/0x138 [ 52.015249][ T5631] __asan_report_store8_noabort+0x20/0x2c [ 52.015264][ T5631] binder_add_device+0x64/0xac [ 52.015276][ T5631] binderfs_binder_device_create+0x798/0x958 [ 52.015288][ T5631] binderfs_fill_super+0x7ac/0xc04 [ 52.015299][ T5631] get_tree_nodev+0xb4/0x144 [ 52.015312][ T5631] binderfs_fs_context_get_tree+0x28/0x38 [ 52.015324][ T5631] vfs_get_tree+0x90/0x28c [ 52.015336][ T5631] do_new_mount+0x278/0x900 [ 52.015349][ T5631] path_mount+0x590/0xe04 [ 52.015360][ T5631] __arm64_sys_mount+0x4d8/0x5ac [ 52.015373][ T5631] invoke_syscall+0x98/0x2b8 [ 52.015386][ T5631] el0_svc_common+0x130/0x23c [ 52.015398][ T5631] do_el0_svc+0x48/0x58 [ 52.015410][ T5631] el0_svc+0x54/0x168 [ 52.015423][ T5631] el0t_64_sync_handler+0x84/0x108 [ 52.015436][ T5631] el0t_64_sync+0x198/0x19c [ 52.015450][ T5631] [ 52.044813][ T5631] Allocated by task 5624: [ 52.045891][ T5631] kasan_save_track+0x40/0x78 [ 52.047053][ T5631] kasan_save_alloc_info+0x40/0x50 [ 52.048359][ T5631] __kasan_kmalloc+0x90/0xa8 [ 52.049480][ T5631] __kmalloc_cache_noprof+0x2c8/0x3f0 [ 52.050925][ T5631] binderfs_binder_device_create+0x18c/0x958 [ 52.052492][ T5631] binderfs_fill_super+0x7ac/0xc04 [ 52.053784][ T5631] get_tree_nodev+0xb4/0x144 [ 52.054927][ T5631] binderfs_fs_context_get_tree+0x28/0x38 [ 52.056374][ T5631] vfs_get_tree+0x90/0x28c [ 52.057495][ T5631] do_new_mount+0x278/0x900 [ 52.058564][ T5631] path_mount+0x590/0xe04 [ 52.059634][ T5631] __arm64_sys_mount+0x4d8/0x5ac [ 52.060894][ T5631] invoke_syscall+0x98/0x2b8 [ 52.062089][ T5631] el0_svc_common+0x130/0x23c [ 52.063266][ T5631] do_el0_svc+0x48/0x58 [ 52.064246][ T5631] el0_svc+0x54/0x168 [ 52.065247][ T5631] el0t_64_sync_handler+0x84/0x108 [ 52.066605][ T5631] el0t_64_sync+0x198/0x19c [ 52.067708][ T5631] [ 52.068320][ T5631] Freed by task 5624: [ 52.069315][ T5631] kasan_save_track+0x40/0x78 [ 52.070574][ T5631] kasan_save_free_info+0x54/0x6c [ 52.071892][ T5631] __kasan_slab_free+0x48/0x68 [ 52.073127][ T5631] kfree+0x16c/0x484 [ 52.074187][ T5631] binderfs_evict_inode+0x160/0x220 [ 52.075511][ T5631] evict+0x444/0x978 [ 52.076369][ T5631] iput+0x740/0x8e8 [ 52.077038][ T5631] dentry_unlink_inode+0x3a0/0x4e0 [ 52.077932][ T5631] __dentry_kill+0x178/0x5e8 [ 52.078752][ T5631] shrink_kill+0xd4/0x2cc [ 52.079515][ T5631] shrink_dentry_list+0x31c/0x768 [ 52.080385][ T5631] shrink_dcache_parent+0xc4/0x374 [ 52.081374][ T5631] do_one_tree+0x30/0xfc [ 52.082480][ T5631] shrink_dcache_for_umount+0xd8/0x188 [ 52.083918][ T5631] generic_shutdown_super+0x68/0x2bc [ 52.085152][ T5631] kill_litter_super+0x74/0xb8 [ 52.086310][ T5631] binderfs_kill_super+0x44/0x9c [ 52.087530][ T5631] deactivate_locked_super+0xc4/0x12c [ 52.088826][ T5631] deactivate_super+0xe0/0x100 [ 52.090048][ T5631] cleanup_mnt+0x34c/0x3dc [ 52.091149][ T5631] __cleanup_mnt+0x20/0x30 [ 52.092293][ T5631] task_work_run+0x230/0x2e0 [ 52.093504][ T5631] do_exit+0x4e8/0x1acc [ 52.094512][ T5631] do_group_exit+0x194/0x22c [ 52.095571][ T5631] get_signal+0x1418/0x1534 [ 52.096698][ T5631] do_signal+0x22c/0x39e4 [ 52.097815][ T5631] do_notify_resume+0x74/0x1f4 [ 52.098909][ T5631] el0_svc+0xac/0x168 [ 52.099889][ T5631] el0t_64_sync_handler+0x84/0x108 [ 52.101141][ T5631] el0t_64_sync+0x198/0x19c [ 52.102321][ T5631] [ 52.102849][ T5631] The buggy address belongs to the object at ffff0000d14d0000 [ 52.102849][ T5631] which belongs to the cache kmalloc-512 of size 512 [ 52.106313][ T5631] The buggy address is located 8 bytes inside of [ 52.106313][ T5631] freed 512-byte region [ffff0000d14d0000, ffff0000d14d0200) [ 52.109566][ T5631] [ 52.110090][ T5631] The buggy address belongs to the physical page: [ 52.111679][ T5631] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1114d0 [ 52.113854][ T5631] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 52.116010][ T5631] flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) [ 52.118103][ T5631] page_type: f5(slab) [ 52.119109][ T5631] raw: 05ffc00000000040 ffff0000c0001c80 dead000000000100 dead000000000122 [ 52.121290][ T5631] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 52.123384][ T5631] head: 05ffc00000000040 ffff0000c0001c80 dead000000000100 dead000000000122 [ 52.125536][ T5631] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 52.127677][ T5631] head: 05ffc00000000002 fffffdffc3453401 ffffffffffffffff 0000000000000000 [ 52.129892][ T5631] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 [ 52.132056][ T5631] page dumped because: kasan: bad access detected [ 52.133738][ T5631] [ 52.134311][ T5631] Memory state around the buggy address: [ 52.135686][ T5631] ffff0000d14cff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 52.137689][ T5631] ffff0000d14cff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 52.139811][ T5631] >ffff0000d14d0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 52.141905][ T5631] ^ [ 52.142967][ T5631] ffff0000d14d0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 52.145010][ T5631] ffff0000d14d0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 52.146991][ T5631] ================================================================== [ 52.157267][ T5631] Disabling lock debugging due to kernel taint [ 52.381979][ T5646] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.384254][ T5646] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.386115][ T5648] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.388198][ T5648] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.390290][ T5648] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.392095][ T5648] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 52.568104][ T5658] chnl_net:caif_netlink_parms(): no params data found [ 52.597287][ T5658] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.599076][ T5658] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.600906][ T5658] bridge_slave_0: entered allmulticast mode [ 52.602641][ T5658] bridge_slave_0: entered promiscuous mode [ 52.605077][ T5658] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.606772][ T5658] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.608644][ T5658] bridge_slave_1: entered allmulticast mode [ 52.610413][ T5658] bridge_slave_1: entered promiscuous mode [ 52.617779][ T5658] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.620886][ T5658] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.630381][ T5658] team0: Port device team_slave_0 added [ 52.632625][ T5658] team0: Port device team_slave_1 added [ 52.639150][ T5658] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.640844][ T5658] 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. [ 52.647905][ T5658] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.655610][ T5658] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.657356][ T5658] 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. [ 52.663922][ T5658] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.675575][ T5658] hsr_slave_0: entered promiscuous mode [ 52.677276][ T5658] hsr_slave_1: entered promiscuous mode [ 52.873015][ T5658] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 52.875921][ T5658] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 52.878848][ T5658] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 52.881607][ T5658] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 52.889917][ T5658] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.891638][ T5658] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.893451][ T5658] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.895261][ T5658] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.911521][ T5658] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.916275][ T3813] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.918471][ T3813] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.924672][ T5658] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.928636][ T3813] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.930424][ T3813] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.935354][ T4074] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.937083][ T4074] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.985199][ T5658] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.999499][ T5658] veth0_vlan: entered promiscuous mode [ 53.002740][ T5658] veth1_vlan: entered promiscuous mode [ 53.011574][ T5658] veth0_macvtap: entered promiscuous mode [ 53.014261][ T5658] veth1_macvtap: entered promiscuous mode [ 53.019469][ T5658] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 53.024544][ T5658] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.027817][ T5658] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.030146][ T5658] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.032299][ T5658] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.035405][ T5658] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.424141][ T4074] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.440846][ T476] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.442753][ T476] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.449871][ T3813] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 53.451770][ T3813] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 53.484667][ T4074] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.604644][ T4074] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.684416][ T4074] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:54 executed programs: 0 [ 54.071865][ T53] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.074211][ T53] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.076160][ T53] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.078412][ T53] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.080707][ T53] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 54.082794][ T53] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.125094][ T5708] chnl_net:caif_netlink_parms(): no params data found [ 54.152471][ T5708] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.154341][ T5708] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.156049][ T5708] bridge_slave_0: entered allmulticast mode [ 54.157785][ T5708] bridge_slave_0: entered promiscuous mode [ 54.160068][ T5708] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.161843][ T5708] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.163811][ T5708] bridge_slave_1: entered allmulticast mode [ 54.165606][ T5708] bridge_slave_1: entered promiscuous mode [ 54.173402][ T5708] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.176530][ T5708] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.184872][ T5708] team0: Port device team_slave_0 added [ 54.187074][ T5708] team0: Port device team_slave_1 added [ 54.194780][ T5708] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.196529][ T5708] 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. [ 54.202700][ T5708] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.206423][ T5708] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.208195][ T5708] 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. [ 54.214702][ T5708] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.226358][ T5708] hsr_slave_0: entered promiscuous mode [ 54.227981][ T5708] hsr_slave_1: entered promiscuous mode [ 54.229562][ T5708] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 54.231370][ T5708] Cannot create hsr debugfs directory [ 56.093242][ T53] Bluetooth: hci0: command tx timeout [ 56.551814][ T4074] bridge_slave_1: left allmulticast mode [ 56.554885][ T4074] bridge_slave_1: left promiscuous mode [ 56.556459][ T4074] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.559250][ T4074] bridge_slave_0: left allmulticast mode [ 56.560581][ T4074] bridge_slave_0: left promiscuous mode [ 56.561931][ T4074] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.183150][ T53] Bluetooth: hci0: command tx timeout [ 58.194607][ T4074] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 58.234483][ T4074] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 58.274658][ T4074] bond0 (unregistering): Released all slaves [ 58.365302][ T4074] hsr_slave_0: left promiscuous mode [ 58.367161][ T4074] hsr_slave_1: left promiscuous mode [ 58.368785][ T4074] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 58.370585][ T4074] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 58.372778][ T4074] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 58.375606][ T4074] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 58.379269][ T4074] veth1_macvtap: left promiscuous mode [ 58.380836][ T4074] veth0_macvtap: left promiscuous mode [ 58.382420][ T4074] veth1_vlan: left promiscuous mode [ 58.384928][ T4074] veth0_vlan: left promiscuous mode [ 60.253171][ T53] Bluetooth: hci0: command tx timeout [ 60.323752][ T4074] team0 (unregistering): Port device team_slave_1 removed [ 60.513787][ T4074] 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-build1244693299=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at f2baddf5cf 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=f2baddf5cfc118066483050e29627cea6b63bcfb -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250211-135208'" -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=\"f2baddf5cfc118066483050e29627cea6b63bcfb\" /usr/lib/gcc-cross/aarch64-linux-gnu/12/../../../../aarch64-linux-gnu/bin/ld: /tmp/ccqcL0vw.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