KASAN: slab-use-after-free Write in binder_add_device netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 ================================================================== 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 ffff0000d372dc08 by task syz-executor/6065 CPU: 1 UID: 0 PID: 6065 Comm: syz-executor Not tainted 6.14.0-rc5-syzkaller-00268-g1110ce6a1e34 #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 6059: 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/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 6059: 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+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 ffff0000d372dc00 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of freed 512-byte region [ffff0000d372dc00, ffff0000d372de00) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11372c head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 ksm flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) page_type: f5(slab) raw: 05ffc00000000040 ffff0000c0001c80 fffffdffc3435100 dead000000000003 raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 05ffc00000000040 ffff0000c0001c80 fffffdffc3435100 dead000000000003 head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 05ffc00000000002 fffffdffc34dcb01 ffffffffffffffff 0000000000000000 head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d372db00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d372db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000d372dc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000d372dc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000d372dd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Warning: Permanently added '10.128.10.21' (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 [ 38.972241][ T6052] cgroup: Unknown subsys name 'net' [ 39.285673][ T6052] cgroup: Unknown subsys name 'cpuset' [ 39.289214][ T6052] cgroup: Unknown subsys name 'rlimit' [ 39.290837][ T6052] cgroup: Unknown subsys name 'memory' [ 39.469030][ T6052] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS [ 52.831534][ T6065] chnl_net:caif_netlink_parms(): no params data found [ 52.868198][ T6065] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.870286][ T6065] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.872328][ T6065] bridge_slave_0: entered allmulticast mode [ 52.874691][ T6065] bridge_slave_0: entered promiscuous mode [ 52.878375][ T6065] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.880425][ T6065] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.882386][ T6065] bridge_slave_1: entered allmulticast mode [ 52.884689][ T6065] bridge_slave_1: entered promiscuous mode [ 52.897235][ T6065] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.901015][ T6065] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.949984][ T6065] team0: Port device team_slave_0 added [ 52.952739][ T6065] team0: Port device team_slave_1 added [ 52.963202][ T6065] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.965400][ T6065] 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. [ 52.972644][ T6065] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.977041][ T6065] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.979336][ T6065] 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. [ 52.986699][ T6065] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.006869][ T6065] hsr_slave_0: entered promiscuous mode [ 53.008860][ T6065] hsr_slave_1: entered promiscuous mode [ 53.063419][ T6065] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.067202][ T6065] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.070418][ T6065] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.074245][ T6065] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.088275][ T6065] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.090268][ T6065] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.092486][ T6065] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.094538][ T6065] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.117090][ T6065] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.126770][ T615] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.130003][ T615] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.138856][ T6065] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.144748][ T45] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.146682][ T45] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.151552][ T615] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.153474][ T615] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.227160][ T6065] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.242641][ T6065] veth0_vlan: entered promiscuous mode [ 53.250049][ T6065] veth1_vlan: entered promiscuous mode [ 53.261139][ T6065] veth0_macvtap: entered promiscuous mode [ 53.264897][ T6065] veth1_macvtap: entered promiscuous mode [ 53.272576][ T6065] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 53.278498][ T6065] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.282022][ T6065] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.285233][ T6065] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.287553][ T6065] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.289902][ T6065] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.312111][ T6065] ================================================================== [ 53.314404][ T6065] BUG: KASAN: slab-use-after-free in binder_add_device+0x64/0xac [ 53.316404][ T6065] Write of size 8 at addr ffff0000d372dc08 by task syz-executor/6065 [ 53.318592][ T6065] [ 53.319236][ T6065] CPU: 1 UID: 0 PID: 6065 Comm: syz-executor Not tainted 6.14.0-rc5-syzkaller-00268-g1110ce6a1e34 #0 [ 53.319250][ T6065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 53.319258][ T6065] Call trace: [ 53.319261][ T6065] show_stack+0x2c/0x3c (C) [ 53.319278][ T6065] dump_stack_lvl+0xe4/0x150 [ 53.319291][ T6065] print_report+0x178/0x530 [ 53.319302][ T6065] kasan_report+0xd8/0x138 [ 53.319312][ T6065] __asan_report_store8_noabort+0x20/0x2c [ 53.319324][ T6065] binder_add_device+0x64/0xac [ 53.319336][ T6065] binderfs_binder_device_create+0x798/0x958 [ 53.319348][ T6065] binderfs_fill_super+0x7ac/0xc04 [ 53.319359][ T6065] get_tree_nodev+0xb4/0x144 [ 53.319370][ T6065] binderfs_fs_context_get_tree+0x28/0x38 [ 53.319382][ T6065] vfs_get_tree+0x90/0x28c [ 53.319392][ T6065] do_new_mount+0x278/0x900 [ 53.319402][ T6065] path_mount+0x590/0xe04 [ 53.319412][ T6065] __arm64_sys_mount+0x4d8/0x5ac [ 53.319423][ T6065] invoke_syscall+0x98/0x2b8 [ 53.319434][ T6065] el0_svc_common+0x130/0x23c [ 53.319446][ T6065] do_el0_svc+0x48/0x58 [ 53.319456][ T6065] el0_svc+0x54/0x168 [ 53.319475][ T6065] el0t_64_sync_handler+0x84/0x108 [ 53.319486][ T6065] el0t_64_sync+0x198/0x19c [ 53.319508][ T6065] [ 53.351511][ T6065] Allocated by task 6059: [ 53.352637][ T6065] kasan_save_track+0x40/0x78 [ 53.353867][ T6065] kasan_save_alloc_info+0x40/0x50 [ 53.355301][ T6065] __kasan_kmalloc+0xac/0xc4 [ 53.356574][ T6065] __kmalloc_cache_noprof+0x2cc/0x428 [ 53.357985][ T6065] binderfs_binder_device_create+0x18c/0x958 [ 53.359521][ T6065] binderfs_fill_super+0x7ac/0xc04 [ 53.360861][ T6065] get_tree_nodev+0xb4/0x144 [ 53.362086][ T6065] binderfs_fs_context_get_tree+0x28/0x38 [ 53.363604][ T6065] vfs_get_tree+0x90/0x28c [ 53.364804][ T6065] do_new_mount+0x278/0x900 [ 53.366045][ T6065] path_mount+0x590/0xe04 [ 53.367188][ T6065] __arm64_sys_mount+0x4d8/0x5ac [ 53.368543][ T6065] invoke_syscall+0x98/0x2b8 [ 53.369792][ T6065] el0_svc_common+0x130/0x23c [ 53.371046][ T6065] do_el0_svc+0x48/0x58 [ 53.372142][ T6065] el0_svc+0x54/0x168 [ 53.373177][ T6065] el0t_64_sync_handler+0x84/0x108 [ 53.374578][ T6065] el0t_64_sync+0x198/0x19c [ 53.375783][ T6065] [ 53.376355][ T6065] Freed by task 6059: [ 53.377435][ T6065] kasan_save_track+0x40/0x78 [ 53.378696][ T6065] kasan_save_free_info+0x54/0x6c [ 53.380093][ T6065] __kasan_slab_free+0x64/0x8c [ 53.381428][ T6065] kfree+0x180/0x478 [ 53.382520][ T6065] binderfs_evict_inode+0x160/0x220 [ 53.383955][ T6065] evict+0x444/0x978 [ 53.385011][ T6065] iput+0x740/0x8e8 [ 53.386035][ T6065] dentry_unlink_inode+0x3a0/0x4e0 [ 53.387416][ T6065] __dentry_kill+0x178/0x5e8 [ 53.388663][ T6065] shrink_kill+0xd4/0x2cc [ 53.389831][ T6065] shrink_dentry_list+0x31c/0x768 [ 53.391160][ T6065] shrink_dcache_parent+0xc4/0x374 [ 53.392509][ T6065] do_one_tree+0x30/0xfc [ 53.393648][ T6065] shrink_dcache_for_umount+0xd8/0x188 [ 53.395116][ T6065] generic_shutdown_super+0x68/0x2bc [ 53.396613][ T6065] kill_litter_super+0x74/0xb8 [ 53.397885][ T6065] binderfs_kill_super+0x44/0x9c [ 53.399224][ T6065] deactivate_locked_super+0xc4/0x12c [ 53.400677][ T6065] deactivate_super+0xe0/0x100 [ 53.401927][ T6065] cleanup_mnt+0x34c/0x3dc [ 53.403080][ T6065] __cleanup_mnt+0x20/0x30 [ 53.404271][ T6065] task_work_run+0x230/0x2e0 [ 53.405544][ T6065] do_exit+0x4e8/0x1acc [ 53.406723][ T6065] do_group_exit+0x194/0x22c [ 53.407963][ T6065] get_signal+0x1418/0x1534 [ 53.409138][ T6065] do_signal+0x22c/0x39e4 [ 53.410296][ T6065] do_notify_resume+0x74/0x1f4 [ 53.411581][ T6065] el0_svc+0xac/0x168 [ 53.412655][ T6065] el0t_64_sync_handler+0x84/0x108 [ 53.414054][ T6065] el0t_64_sync+0x198/0x19c [ 53.415219][ T6065] [ 53.415805][ T6065] The buggy address belongs to the object at ffff0000d372dc00 [ 53.415805][ T6065] which belongs to the cache kmalloc-512 of size 512 [ 53.419554][ T6065] The buggy address is located 8 bytes inside of [ 53.419554][ T6065] freed 512-byte region [ffff0000d372dc00, ffff0000d372de00) [ 53.423216][ T6065] [ 53.423817][ T6065] The buggy address belongs to the physical page: [ 53.425433][ T6065] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11372c [ 53.427738][ T6065] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 53.429962][ T6065] ksm flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) [ 53.432176][ T6065] page_type: f5(slab) [ 53.433307][ T6065] raw: 05ffc00000000040 ffff0000c0001c80 fffffdffc3435100 dead000000000003 [ 53.435622][ T6065] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 53.437978][ T6065] head: 05ffc00000000040 ffff0000c0001c80 fffffdffc3435100 dead000000000003 [ 53.440332][ T6065] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 53.442674][ T6065] head: 05ffc00000000002 fffffdffc34dcb01 ffffffffffffffff 0000000000000000 [ 53.444972][ T6065] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 [ 53.447345][ T6065] page dumped because: kasan: bad access detected [ 53.449068][ T6065] [ 53.449686][ T6065] Memory state around the buggy address: [ 53.451165][ T6065] ffff0000d372db00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 53.453327][ T6065] ffff0000d372db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 53.455486][ T6065] >ffff0000d372dc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.457635][ T6065] ^ [ 53.458841][ T6065] ffff0000d372dc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.460984][ T6065] ffff0000d372dd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 53.463217][ T6065] ================================================================== [ 53.467851][ T6065] Disabling lock debugging due to kernel taint [ 53.864373][ T615] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.944426][ T615] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.044890][ T615] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.124980][ T615] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.270474][ T55] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.272795][ T55] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.275328][ T55] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.277796][ T55] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.280006][ T55] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 54.282093][ T55] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.632569][ T45] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.635333][ T45] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.642030][ T45] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.644372][ T45] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 1970/01/01 00:00:54 executed programs: 0 [ 54.808344][ T5620] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.810656][ T5620] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.812812][ T5620] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.815261][ T5620] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.817501][ T5620] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 54.819574][ T5620] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.867827][ T6141] chnl_net:caif_netlink_parms(): no params data found [ 54.884647][ T6141] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.886614][ T6141] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.888582][ T6141] bridge_slave_0: entered allmulticast mode [ 54.890443][ T6141] bridge_slave_0: entered promiscuous mode [ 54.892648][ T6141] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.894896][ T6141] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.896810][ T6141] bridge_slave_1: entered allmulticast mode [ 54.898741][ T6141] bridge_slave_1: entered promiscuous mode [ 54.910262][ T6141] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.914352][ T6141] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.923066][ T6141] team0: Port device team_slave_0 added [ 54.926569][ T6141] team0: Port device team_slave_1 added [ 54.934350][ T6141] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.936251][ T6141] 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. [ 54.943201][ T6141] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.946901][ T6141] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.948807][ T6141] 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. [ 54.955825][ T6141] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.968103][ T6141] hsr_slave_0: entered promiscuous mode [ 54.969952][ T6141] hsr_slave_1: entered promiscuous mode [ 54.971627][ T6141] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 54.973836][ T6141] Cannot create hsr debugfs directory [ 56.893395][ T5620] Bluetooth: hci0: command tx timeout [ 57.018387][ T615] bridge_slave_1: left allmulticast mode [ 57.020166][ T615] bridge_slave_1: left promiscuous mode [ 57.021684][ T615] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.025382][ T615] bridge_slave_0: left allmulticast mode [ 57.026958][ T615] bridge_slave_0: left promiscuous mode [ 57.028556][ T615] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.595164][ T615] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 58.634612][ T615] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 58.674165][ T615] bond0 (unregistering): Released all slaves [ 58.749529][ T615] hsr_slave_0: left promiscuous mode [ 58.751350][ T615] hsr_slave_1: left promiscuous mode [ 58.752989][ T615] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 58.755294][ T615] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 58.757760][ T615] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 58.760113][ T615] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 58.764164][ T615] veth1_macvtap: left promiscuous mode [ 58.765725][ T615] veth0_macvtap: left promiscuous mode [ 58.767280][ T615] veth1_vlan: left promiscuous mode [ 58.768668][ T615] veth0_vlan: left promiscuous mode [ 58.983404][ T5620] Bluetooth: hci0: command tx timeout [ 60.673927][ T615] team0 (unregistering): Port device team_slave_1 removed [ 60.854447][ T615] team0 (unregistering): Port device team_slave_0 removed [ 61.053472][ T5620] Bluetooth: hci0: command tx timeout [ 63.143349][ T5620] Bluetooth: hci0: command tx timeout 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-build4168582136=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at ef44b750e8f 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/cckMSHT3.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