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 ffff0000c6dd0808 by task syz-executor/6437 CPU: 1 UID: 0 PID: 6437 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller-00069-ga8dfb2168906-dirty #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:378 [inline] print_report+0x198/0x538 mm/kasan/report.c:489 kasan_report+0xd8/0x138 mm/kasan/report.c:602 __asan_report_store8_noabort+0x20/0x2c mm/kasan/report_generic.c:386 hlist_add_head include/linux/list.h:1026 [inline] binder_add_device+0x64/0xac drivers/android/binder.c:6932 binderfs_binder_device_create+0x798/0x958 drivers/android/binderfs.c:210 binderfs_fill_super+0x7ac/0xc04 drivers/android/binderfs.c:729 vfs_get_super fs/super.c:1280 [inline] get_tree_nodev+0xb4/0x144 fs/super.c:1299 binderfs_fs_context_get_tree+0x28/0x38 drivers/android/binderfs.c:749 vfs_get_tree+0x90/0x28c fs/super.c:1814 do_new_mount+0x278/0x900 fs/namespace.c:3560 path_mount+0x590/0xe04 fs/namespace.c:3887 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount fs/namespace.c:4088 [inline] __arm64_sys_mount+0x4d8/0x5ac fs/namespace.c:4088 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Allocated by task 6431: 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 6431: 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 ffff0000c6dd0800 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of freed 512-byte region [ffff0000c6dd0800, ffff0000c6dd0a00) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff0000c6dd3000 pfn:0x106dd0 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: ffff0000c6dd3000 000000000010000c 00000000f5000000 0000000000000000 head: 05ffc00000000040 ffff0000c0001c80 0000000000000000 0000000000000001 head: ffff0000c6dd3000 000000000010000c 00000000f5000000 0000000000000000 head: 05ffc00000000002 fffffdffc31b7401 ffffffffffffffff 0000000000000000 head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000c6dd0700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000c6dd0780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000c6dd0800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000c6dd0880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000c6dd0900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Warning: Permanently added '10.128.0.91' (ED25519) to the list of known hosts. 1970/01/01 00:00:40 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:40 parsed 1 programs [ 43.863178][ T6422] cgroup: Unknown subsys name 'net' [ 44.084070][ T6422] cgroup: Unknown subsys name 'cpuset' [ 44.089793][ T6422] cgroup: Unknown subsys name 'rlimit' [ 44.410525][ T6422] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS [ 57.107596][ T6431] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 57.229203][ T6437] ================================================================== [ 57.231304][ T6437] BUG: KASAN: slab-use-after-free in binder_add_device+0x64/0xac [ 57.233331][ T6437] Write of size 8 at addr ffff0000c6dd0808 by task syz-executor/6437 [ 57.235478][ T6437] [ 57.236100][ T6437] CPU: 1 UID: 0 PID: 6437 Comm: syz-executor Not tainted 6.14.0-rc2-syzkaller-00069-ga8dfb2168906-dirty #0 [ 57.236114][ T6437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 57.236122][ T6437] Call trace: [ 57.236125][ T6437] show_stack+0x2c/0x3c (C) [ 57.236144][ T6437] dump_stack_lvl+0xe4/0x150 [ 57.236159][ T6437] print_report+0x198/0x538 [ 57.236171][ T6437] kasan_report+0xd8/0x138 [ 57.236181][ T6437] __asan_report_store8_noabort+0x20/0x2c [ 57.236193][ T6437] binder_add_device+0x64/0xac [ 57.236206][ T6437] binderfs_binder_device_create+0x798/0x958 [ 57.236219][ T6437] binderfs_fill_super+0x7ac/0xc04 [ 57.236231][ T6437] get_tree_nodev+0xb4/0x144 [ 57.236243][ T6437] binderfs_fs_context_get_tree+0x28/0x38 [ 57.236255][ T6437] vfs_get_tree+0x90/0x28c [ 57.236267][ T6437] do_new_mount+0x278/0x900 [ 57.236280][ T6437] path_mount+0x590/0xe04 [ 57.236291][ T6437] __arm64_sys_mount+0x4d8/0x5ac [ 57.236303][ T6437] invoke_syscall+0x98/0x2b8 [ 57.236316][ T6437] el0_svc_common+0x130/0x23c [ 57.236328][ T6437] do_el0_svc+0x48/0x58 [ 57.236340][ T6437] el0_svc+0x54/0x168 [ 57.236351][ T6437] el0t_64_sync_handler+0x84/0x108 [ 57.236362][ T6437] el0t_64_sync+0x198/0x19c [ 57.236374][ T6437] [ 57.267903][ T6437] Allocated by task 6431: [ 57.269016][ T6437] kasan_save_track+0x40/0x78 [ 57.270223][ T6437] kasan_save_alloc_info+0x40/0x50 [ 57.271585][ T6437] __kasan_kmalloc+0xac/0xc4 [ 57.272773][ T6437] __kmalloc_cache_noprof+0x2cc/0x428 [ 57.274156][ T6437] binderfs_binder_device_create+0x18c/0x958 [ 57.275710][ T6437] binderfs_fill_super+0x7ac/0xc04 [ 57.277041][ T6437] get_tree_nodev+0xb4/0x144 [ 57.278274][ T6437] binderfs_fs_context_get_tree+0x28/0x38 [ 57.279814][ T6437] vfs_get_tree+0x90/0x28c [ 57.280968][ T6437] do_new_mount+0x278/0x900 [ 57.282149][ T6437] path_mount+0x590/0xe04 [ 57.283271][ T6437] __arm64_sys_mount+0x4d8/0x5ac [ 57.284590][ T6437] invoke_syscall+0x98/0x2b8 [ 57.285788][ T6437] el0_svc_common+0x130/0x23c [ 57.287016][ T6437] do_el0_svc+0x48/0x58 [ 57.288156][ T6437] el0_svc+0x54/0x168 [ 57.289183][ T6437] el0t_64_sync_handler+0x84/0x108 [ 57.290536][ T6437] el0t_64_sync+0x198/0x19c [ 57.291728][ T6437] [ 57.292312][ T6437] Freed by task 6431: [ 57.293334][ T6437] kasan_save_track+0x40/0x78 [ 57.294551][ T6437] kasan_save_free_info+0x54/0x6c [ 57.295837][ T6437] __kasan_slab_free+0x64/0x8c [ 57.297065][ T6437] kfree+0x180/0x478 [ 57.298074][ T6437] binderfs_evict_inode+0x160/0x220 [ 57.299426][ T6437] evict+0x444/0x978 [ 57.300436][ T6437] iput+0x740/0x8e8 [ 57.301425][ T6437] dentry_unlink_inode+0x3a0/0x4e0 [ 57.302787][ T6437] __dentry_kill+0x178/0x5e8 [ 57.303966][ T6437] shrink_kill+0xd4/0x2cc [ 57.305091][ T6437] shrink_dentry_list+0x31c/0x768 [ 57.306403][ T6437] shrink_dcache_parent+0xc4/0x374 [ 57.307725][ T6437] do_one_tree+0x30/0xfc [ 57.308817][ T6437] shrink_dcache_for_umount+0xd8/0x188 [ 57.310208][ T6437] generic_shutdown_super+0x68/0x2bc [ 57.311588][ T6437] kill_litter_super+0x74/0xb8 [ 57.312815][ T6437] binderfs_kill_super+0x44/0x9c [ 57.314091][ T6437] deactivate_locked_super+0xc4/0x12c [ 57.315477][ T6437] deactivate_super+0xe0/0x100 [ 57.316708][ T6437] cleanup_mnt+0x34c/0x3dc [ 57.317880][ T6437] __cleanup_mnt+0x20/0x30 [ 57.319022][ T6437] task_work_run+0x230/0x2e0 [ 57.320203][ T6437] do_exit+0x4e8/0x1acc [ 57.321325][ T6437] do_group_exit+0x194/0x22c [ 57.322516][ T6437] get_signal+0x1418/0x1534 [ 57.323687][ T6437] do_signal+0x22c/0x39e4 [ 57.324803][ T6437] do_notify_resume+0x74/0x1f4 [ 57.326054][ T6437] el0_svc+0xac/0x168 [ 57.327137][ T6437] el0t_64_sync_handler+0x84/0x108 [ 57.328474][ T6437] el0t_64_sync+0x198/0x19c [ 57.329650][ T6437] [ 57.330236][ T6437] The buggy address belongs to the object at ffff0000c6dd0800 [ 57.330236][ T6437] which belongs to the cache kmalloc-512 of size 512 [ 57.333883][ T6437] The buggy address is located 8 bytes inside of [ 57.333883][ T6437] freed 512-byte region [ffff0000c6dd0800, ffff0000c6dd0a00) [ 57.337465][ T6437] [ 57.338058][ T6437] The buggy address belongs to the physical page: [ 57.339720][ T6437] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff0000c6dd3000 pfn:0x106dd0 [ 57.342360][ T6437] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 57.344585][ T6437] anon flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) [ 57.346663][ T6437] page_type: f5(slab) [ 57.347694][ T6437] raw: 05ffc00000000040 ffff0000c0001c80 0000000000000000 0000000000000001 [ 57.349947][ T6437] raw: ffff0000c6dd3000 000000000010000c 00000000f5000000 0000000000000000 [ 57.352181][ T6437] head: 05ffc00000000040 ffff0000c0001c80 0000000000000000 0000000000000001 [ 57.354462][ T6437] head: ffff0000c6dd3000 000000000010000c 00000000f5000000 0000000000000000 [ 57.356780][ T6437] head: 05ffc00000000002 fffffdffc31b7401 ffffffffffffffff 0000000000000000 [ 57.359060][ T6437] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 [ 57.361371][ T6437] page dumped because: kasan: bad access detected [ 57.363069][ T6437] [ 57.363674][ T6437] Memory state around the buggy address: [ 57.365143][ T6437] ffff0000c6dd0700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 57.367267][ T6437] ffff0000c6dd0780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 57.369405][ T6437] >ffff0000c6dd0800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 57.371514][ T6437] ^ [ 57.372638][ T6437] ffff0000c6dd0880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 57.374759][ T6437] ffff0000c6dd0900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 57.376899][ T6437] ================================================================== [ 57.383599][ T6437] Disabling lock debugging due to kernel taint [ 58.115605][ T4279] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.117733][ T4279] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.126718][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.128688][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.244921][ T6478] chnl_net:caif_netlink_parms(): no params data found [ 58.262999][ T6478] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.265000][ T6478] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.266851][ T6478] bridge_slave_0: entered allmulticast mode [ 58.268702][ T6478] bridge_slave_0: entered promiscuous mode [ 58.271065][ T6478] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.273065][ T6478] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.274890][ T6478] bridge_slave_1: entered allmulticast mode [ 58.276725][ T6478] bridge_slave_1: entered promiscuous mode [ 58.284565][ T6478] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.287976][ T6478] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.301618][ T6478] team0: Port device team_slave_0 added [ 58.304562][ T6478] team0: Port device team_slave_1 added [ 58.311150][ T6478] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.313047][ T6478] 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. [ 58.319801][ T6478] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.323279][ T6478] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.325087][ T6478] 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. [ 58.331871][ T6478] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.342983][ T6478] hsr_slave_0: entered promiscuous mode [ 58.344857][ T6478] hsr_slave_1: entered promiscuous mode [ 58.524904][ T6478] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.527825][ T6478] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.531091][ T6478] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.534071][ T6478] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.545093][ T6478] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.546954][ T6478] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.548836][ T6478] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.550658][ T6478] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.574099][ T6478] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.579075][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.581405][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.588160][ T6478] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.592344][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.594257][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.604549][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.606435][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.652607][ T6478] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.794002][ T6478] veth0_vlan: entered promiscuous mode [ 58.797290][ T6478] veth1_vlan: entered promiscuous mode [ 58.805304][ T6478] veth0_macvtap: entered promiscuous mode [ 58.808030][ T6478] veth1_macvtap: entered promiscuous mode [ 58.812929][ T6478] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 58.816774][ T6478] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 58.819924][ T6478] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.822355][ T6478] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.824638][ T6478] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 58.826870][ T6478] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.181587][ T6504] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 59.183994][ T6504] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 59.186180][ T6504] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 59.188548][ T6504] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 59.190979][ T6504] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 59.193973][ T6504] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 59.553232][ T257] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.653590][ T257] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:59 executed programs: 0 [ 59.716294][ T5990] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 59.718426][ T5990] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 59.720378][ T5990] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 59.722847][ T5990] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 59.725079][ T5990] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 59.727126][ T5990] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 59.742863][ T257] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 59.781899][ T6514] chnl_net:caif_netlink_parms(): no params data found [ 59.799281][ T6514] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.801138][ T6514] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.803268][ T6514] bridge_slave_0: entered allmulticast mode [ 59.805074][ T6514] bridge_slave_0: entered promiscuous mode [ 59.807421][ T6514] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.809257][ T6514] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.811156][ T6514] bridge_slave_1: entered allmulticast mode [ 59.813176][ T6514] bridge_slave_1: entered promiscuous mode [ 59.820939][ T6514] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.824994][ T6514] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.833658][ T6514] team0: Port device team_slave_0 added [ 59.835905][ T6514] team0: Port device team_slave_1 added [ 59.843368][ T6514] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.845253][ T6514] 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. [ 59.852280][ T6514] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.856347][ T6514] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.858065][ T6514] 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. [ 59.864869][ T6514] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.877687][ T6514] hsr_slave_0: entered promiscuous mode [ 59.879458][ T6514] hsr_slave_1: entered promiscuous mode [ 59.881038][ T6514] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 59.883460][ T6514] Cannot create hsr debugfs directory [ 61.232999][ T257] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 61.761844][ T6504] Bluetooth: hci0: command tx timeout [ 62.710778][ T257] bridge_slave_1: left allmulticast mode [ 62.712502][ T257] bridge_slave_1: left promiscuous mode [ 62.714043][ T257] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.716970][ T257] bridge_slave_0: left allmulticast mode [ 62.718466][ T257] bridge_slave_0: left promiscuous mode [ 62.719970][ T257] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.841936][ T6504] Bluetooth: hci0: command tx timeout [ 64.293085][ T257] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 64.333054][ T257] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 64.392493][ T257] bond0 (unregistering): Released all slaves [ 64.469913][ T257] hsr_slave_0: left promiscuous mode [ 64.472182][ T257] hsr_slave_1: left promiscuous mode [ 64.474029][ T257] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 64.476001][ T257] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 64.478226][ T257] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 64.480195][ T257] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 64.482596][ T2353] ieee802154 phy0 wpan0: encryption failed: -22 [ 64.484280][ T2353] ieee802154 phy1 wpan1: encryption failed: -22 [ 64.486954][ T257] veth1_macvtap: left promiscuous mode [ 64.488498][ T257] veth0_macvtap: left promiscuous mode [ 64.489971][ T257] veth1_vlan: left promiscuous mode [ 64.491353][ T257] veth0_vlan: left promiscuous mode [ 65.921776][ T6504] Bluetooth: hci0: command tx timeout [ 66.482380][ T257] team0 (unregistering): Port device team_slave_1 removed [ 66.683057][ T257] team0 (unregistering): Port device team_slave_0 removed syzkaller build log: go env (err=) GO111MODULE='auto' GOARCH='amd64' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFLAGS='' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs-2/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.22.7' GCCGO='gccgo' GOAMD64='v1' AR='ar' CC='gcc' CXX='g++' CGO_ENABLED='1' GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod' GOWORK='' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' PKG_CONFIG='pkg-config' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1032201832=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at 6e87cfa299 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 go fmt ./sys/... >/dev/null touch .descriptions GOOS=linux GOARCH=arm64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=6e87cfa299c98d36e79e8b8718a4126899a3ba2f -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250120-133027'" "-tags=syz_target syz_os_linux syz_arch_arm64 " -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=\"6e87cfa299c98d36e79e8b8718a4126899a3ba2f\" /usr/lib/gcc-cross/aarch64-linux-gnu/12/../../../../aarch64-linux-gnu/bin/ld: /tmp/ccpnBTge.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