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 ffff0000cdbec008 by task syz-executor/6078 CPU: 0 UID: 0 PID: 6078 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00199-g76544811c850 #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 6071: 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 6071: 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 ffff0000cdbec000 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of freed 512-byte region [ffff0000cdbec000, ffff0000cdbec200) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10dbec 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 fffffdffc335c900 dead000000000002 raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 05ffc00000000040 ffff0000c0001c80 fffffdffc335c900 dead000000000002 head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 05ffc00000000002 fffffdffc336fb01 ffffffffffffffff 0000000000000000 head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000cdbebf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000cdbebf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000cdbec000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000cdbec080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000cdbec100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Warning: Permanently added '10.128.10.3' (ED25519) to the list of known hosts. 1970/01/01 00:00:36 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:38 parsed 1 programs [ 40.702842][ T6065] cgroup: Unknown subsys name 'net' [ 40.919913][ T6065] cgroup: Unknown subsys name 'cpuset' [ 40.923296][ T6065] cgroup: Unknown subsys name 'rlimit' [ 40.924891][ T6065] cgroup: Unknown subsys name 'memory' [ 41.143070][ T6065] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS [ 58.097550][ T6078] ================================================================== [ 58.099820][ T6078] BUG: KASAN: slab-use-after-free in binder_add_device+0x64/0xac [ 58.101904][ T6078] Write of size 8 at addr ffff0000cdbec008 by task syz-executor/6078 [ 58.104044][ T6078] [ 58.104628][ T6078] CPU: 0 UID: 0 PID: 6078 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00199-g76544811c850 #0 [ 58.104642][ T6078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 58.104649][ T6078] Call trace: [ 58.104652][ T6078] show_stack+0x2c/0x3c (C) [ 58.104669][ T6078] dump_stack_lvl+0xe4/0x150 [ 58.104682][ T6078] print_report+0x178/0x530 [ 58.104694][ T6078] kasan_report+0xd8/0x138 [ 58.104705][ T6078] __asan_report_store8_noabort+0x20/0x2c [ 58.104718][ T6078] binder_add_device+0x64/0xac [ 58.104730][ T6078] binderfs_binder_device_create+0x7fc/0x9fc [ 58.104744][ T6078] binderfs_fill_super+0x7f4/0xc8c [ 58.104765][ T6078] get_tree_nodev+0xb4/0x144 [ 58.104777][ T6078] binderfs_fs_context_get_tree+0x28/0x38 [ 58.104790][ T6078] vfs_get_tree+0x90/0x28c [ 58.104801][ T6078] do_new_mount+0x278/0x900 [ 58.104812][ T6078] path_mount+0x590/0xe04 [ 58.104823][ T6078] __arm64_sys_mount+0x4f4/0x5d0 [ 58.104834][ T6078] invoke_syscall+0x98/0x2b8 [ 58.104845][ T6078] el0_svc_common+0x130/0x23c [ 58.104857][ T6078] do_el0_svc+0x48/0x58 [ 58.104867][ T6078] el0_svc+0x54/0x168 [ 58.104886][ T6078] el0t_64_sync_handler+0x84/0x108 [ 58.104899][ T6078] el0t_64_sync+0x198/0x19c [ 58.104911][ T6078] [ 58.136242][ T6078] Allocated by task 6071: [ 58.137349][ T6078] kasan_save_track+0x40/0x78 [ 58.138567][ T6078] kasan_save_alloc_info+0x40/0x50 [ 58.139913][ T6078] __kasan_kmalloc+0xac/0xc4 [ 58.141093][ T6078] __kmalloc_cache_noprof+0x2cc/0x428 [ 58.142475][ T6078] binderfs_binder_device_create+0x18c/0x9fc [ 58.144054][ T6078] binderfs_fill_super+0x7f4/0xc8c [ 58.145419][ T6078] get_tree_nodev+0xb4/0x144 [ 58.146589][ T6078] binderfs_fs_context_get_tree+0x28/0x38 [ 58.148069][ T6078] vfs_get_tree+0x90/0x28c [ 58.149235][ T6078] do_new_mount+0x278/0x900 [ 58.150361][ T6078] path_mount+0x590/0xe04 [ 58.151477][ T6078] __arm64_sys_mount+0x4f4/0x5d0 [ 58.152763][ T6078] invoke_syscall+0x98/0x2b8 [ 58.153953][ T6078] el0_svc_common+0x130/0x23c [ 58.155170][ T6078] do_el0_svc+0x48/0x58 [ 58.156218][ T6078] el0_svc+0x54/0x168 [ 58.157231][ T6078] el0t_64_sync_handler+0x84/0x108 [ 58.158544][ T6078] el0t_64_sync+0x198/0x19c [ 58.159696][ T6078] [ 58.160345][ T6078] Freed by task 6071: [ 58.161361][ T6078] kasan_save_track+0x40/0x78 [ 58.162621][ T6078] kasan_save_free_info+0x54/0x6c [ 58.164003][ T6078] __kasan_slab_free+0x64/0x8c [ 58.165324][ T6078] kfree+0x180/0x478 [ 58.166441][ T6078] binderfs_evict_inode+0x160/0x220 [ 58.167898][ T6078] evict+0x444/0x978 [ 58.168956][ T6078] iput+0x740/0x8e8 [ 58.169971][ T6078] dentry_unlink_inode+0x3a0/0x4e0 [ 58.171281][ T6078] __dentry_kill+0x178/0x5e8 [ 58.172470][ T6078] shrink_kill+0xd4/0x2cc [ 58.173599][ T6078] shrink_dentry_list+0x31c/0x768 [ 58.174869][ T6078] shrink_dcache_parent+0xc4/0x374 [ 58.176191][ T6078] do_one_tree+0x30/0xfc [ 58.177302][ T6078] shrink_dcache_for_umount+0xd8/0x188 [ 58.178744][ T6078] generic_shutdown_super+0x68/0x2bc [ 58.180114][ T6078] kill_litter_super+0x74/0xb8 [ 58.181392][ T6078] binderfs_kill_super+0x44/0x9c [ 58.182650][ T6078] deactivate_locked_super+0xc4/0x12c [ 58.184102][ T6078] deactivate_super+0xe0/0x100 [ 58.185334][ T6078] cleanup_mnt+0x34c/0x3dc [ 58.186460][ T6078] __cleanup_mnt+0x20/0x30 [ 58.187601][ T6078] task_work_run+0x230/0x2e0 [ 58.188833][ T6078] do_exit+0x4e8/0x1acc [ 58.189899][ T6078] do_group_exit+0x194/0x22c [ 58.191082][ T6078] get_signal+0x13e4/0x1500 [ 58.192258][ T6078] do_signal+0x22c/0x3a04 [ 58.193376][ T6078] do_notify_resume+0x74/0x1f4 [ 58.194617][ T6078] el0_svc+0xac/0x168 [ 58.195664][ T6078] el0t_64_sync_handler+0x84/0x108 [ 58.196981][ T6078] el0t_64_sync+0x198/0x19c [ 58.198121][ T6078] [ 58.198700][ T6078] The buggy address belongs to the object at ffff0000cdbec000 [ 58.198700][ T6078] which belongs to the cache kmalloc-512 of size 512 [ 58.202364][ T6078] The buggy address is located 8 bytes inside of [ 58.202364][ T6078] freed 512-byte region [ffff0000cdbec000, ffff0000cdbec200) [ 58.205911][ T6078] [ 58.206486][ T6078] The buggy address belongs to the physical page: [ 58.208144][ T6078] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10dbec [ 58.210453][ T6078] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 58.212641][ T6078] flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) [ 58.214609][ T6078] page_type: f5(slab) [ 58.215616][ T6078] raw: 05ffc00000000040 ffff0000c0001c80 fffffdffc335c900 dead000000000002 [ 58.217914][ T6078] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 58.220241][ T6078] head: 05ffc00000000040 ffff0000c0001c80 fffffdffc335c900 dead000000000002 [ 58.222649][ T6078] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 58.225141][ T6078] head: 05ffc00000000002 fffffdffc336fb01 ffffffffffffffff 0000000000000000 [ 58.227375][ T6078] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 [ 58.229710][ T6078] page dumped because: kasan: bad access detected [ 58.231375][ T6078] [ 58.231954][ T6078] Memory state around the buggy address: [ 58.233372][ T6078] ffff0000cdbebf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 58.235401][ T6078] ffff0000cdbebf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 58.237418][ T6078] >ffff0000cdbec000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 58.239454][ T6078] ^ [ 58.240556][ T6078] ffff0000cdbec080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 58.242608][ T6078] ffff0000cdbec100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 58.244715][ T6078] ================================================================== [ 58.247133][ T6078] Disabling lock debugging due to kernel taint [ 58.383915][ T6095] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 58.385970][ T6095] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 58.389934][ T6095] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 58.392224][ T6095] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 58.394345][ T6095] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 58.396320][ T6095] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 59.496536][ T6133] chnl_net:caif_netlink_parms(): no params data found [ 59.513973][ T6133] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.515965][ T6133] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.517777][ T6133] bridge_slave_0: entered allmulticast mode [ 59.519925][ T6133] bridge_slave_0: entered promiscuous mode [ 59.522253][ T6133] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.524082][ T6133] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.525917][ T6133] bridge_slave_1: entered allmulticast mode [ 59.527681][ T6133] bridge_slave_1: entered promiscuous mode [ 59.549559][ T6133] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.552715][ T6133] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.560867][ T6133] team0: Port device team_slave_0 added [ 59.562994][ T6133] team0: Port device team_slave_1 added [ 59.569569][ T6133] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.571389][ T6133] 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. [ 59.578469][ T6133] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.581846][ T6133] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.583676][ T6133] 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. [ 59.590373][ T6133] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.601392][ T6133] hsr_slave_0: entered promiscuous mode [ 59.603145][ T6133] hsr_slave_1: entered promiscuous mode [ 59.634493][ T6133] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.637282][ T6133] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.640637][ T6133] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.643390][ T6133] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.655196][ T6133] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.657181][ T6133] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.659058][ T6133] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.660858][ T6133] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.674957][ T6133] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.728543][ T11] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.730738][ T11] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.735506][ T6133] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.806671][ T6133] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 59.809547][ T6133] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.813791][ T11] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.815685][ T11] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.818035][ T11] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.819836][ T11] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.857031][ T6133] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.869711][ T6133] veth0_vlan: entered promiscuous mode [ 59.872930][ T6133] veth1_vlan: entered promiscuous mode [ 59.881085][ T6133] veth0_macvtap: entered promiscuous mode [ 59.883723][ T6133] veth1_macvtap: entered promiscuous mode [ 59.889335][ T6133] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.893181][ T6133] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.896141][ T6133] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.898690][ T6133] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.900910][ T6133] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.903061][ T6133] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.279064][ T4024] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.289155][ T68] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 60.291181][ T68] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 60.298951][ T68] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 60.300930][ T68] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 60.348865][ T4024] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.418524][ T4024] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 60.489031][ T4024] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:00 executed programs: 0 [ 60.524017][ T6095] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 60.526063][ T6095] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 60.528573][ T6095] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 60.530994][ T6095] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 60.533159][ T6095] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 60.535082][ T6095] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 60.583307][ T6157] chnl_net:caif_netlink_parms(): no params data found [ 60.600940][ T6157] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.602837][ T6157] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.604651][ T6157] bridge_slave_0: entered allmulticast mode [ 60.606492][ T6157] bridge_slave_0: entered promiscuous mode [ 60.609124][ T6157] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.611013][ T6157] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.612870][ T6157] bridge_slave_1: entered allmulticast mode [ 60.614616][ T6157] bridge_slave_1: entered promiscuous mode [ 60.622690][ T6157] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.626143][ T6157] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.634236][ T6157] team0: Port device team_slave_0 added [ 60.636341][ T6157] team0: Port device team_slave_1 added [ 60.645412][ T6157] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.647331][ T6157] 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. [ 60.654467][ T6157] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.657775][ T6157] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.659840][ T6157] 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. [ 60.666492][ T6157] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.677448][ T6157] hsr_slave_0: entered promiscuous mode [ 60.679598][ T6157] hsr_slave_1: entered promiscuous mode [ 60.681257][ T6157] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 60.683155][ T6157] Cannot create hsr debugfs directory [ 62.557926][ T6095] Bluetooth: hci0: command tx timeout [ 63.458174][ T4024] bridge_slave_1: left allmulticast mode [ 63.459675][ T4024] bridge_slave_1: left promiscuous mode [ 63.461174][ T4024] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.465736][ T4024] bridge_slave_0: left allmulticast mode [ 63.467253][ T4024] bridge_slave_0: left promiscuous mode [ 63.469610][ T4024] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.478358][ T2182] ieee802154 phy0 wpan0: encryption failed: -22 [ 64.480083][ T2182] ieee802154 phy1 wpan1: encryption failed: -22 [ 64.638023][ T6095] Bluetooth: hci0: command tx timeout [ 65.129217][ T4024] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 65.189138][ T4024] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 65.238777][ T4024] bond0 (unregistering): Released all slaves [ 65.327043][ T4024] hsr_slave_0: left promiscuous mode [ 65.329590][ T4024] hsr_slave_1: left promiscuous mode [ 65.331260][ T4024] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 65.333193][ T4024] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 65.335360][ T4024] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 65.337261][ T4024] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 65.340936][ T4024] veth1_macvtap: left promiscuous mode [ 65.342419][ T4024] veth0_macvtap: left promiscuous mode [ 65.343891][ T4024] veth1_vlan: left promiscuous mode [ 65.345243][ T4024] veth0_vlan: left promiscuous mode [ 66.727951][ T6095] Bluetooth: hci0: command tx timeout [ 67.098426][ T4024] team0 (unregistering): Port device team_slave_1 removed [ 67.308463][ T4024] 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-build2760038267=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at 6a8fcbc4a6 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=6a8fcbc4a6172c831c89c507007f59fba13408aa -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250226-150939'" -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=\"6a8fcbc4a6172c831c89c507007f59fba13408aa\" /usr/lib/gcc-cross/aarch64-linux-gnu/12/../../../../aarch64-linux-gnu/bin/ld: /tmp/ccBJiKYI.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