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 ffff0000cbb9b808 by task syz-executor/5629 CPU: 1 UID: 0 PID: 5629 Comm: syz-executor Not tainted 6.13.0-syzkaller-10003-ga86bf2283d2c #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:378 [inline] print_report+0x178/0x518 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 5622: 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 5622: 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 ffff0000cbb9b800 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of freed 512-byte region [ffff0000cbb9b800, ffff0000cbb9ba00) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10bb98 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 fffffdffc32ee601 ffffffffffffffff 0000000000000000 head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000cbb9b700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000cbb9b780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000cbb9b800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000cbb9b880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000cbb9b900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Warning: Permanently added '10.128.0.231' (ED25519) to the list of known hosts. 1970/01/01 00:00:37 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:38 parsed 1 programs [ 40.659458][ T5615] cgroup: Unknown subsys name 'net' [ 40.897423][ T5615] cgroup: Unknown subsys name 'cpuset' [ 40.901561][ T5615] cgroup: Unknown subsys name 'rlimit' [ 40.903110][ T5615] cgroup: Unknown subsys name 'memory' [ 41.074901][ T5615] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS [ 50.621306][ T5629] ================================================================== [ 50.623461][ T5629] BUG: KASAN: slab-use-after-free in binder_add_device+0x64/0xac [ 50.625314][ T5629] Write of size 8 at addr ffff0000cbb9b808 by task syz-executor/5629 [ 50.627395][ T5629] [ 50.628005][ T5629] CPU: 1 UID: 0 PID: 5629 Comm: syz-executor Not tainted 6.13.0-syzkaller-10003-ga86bf2283d2c #0 [ 50.628019][ T5629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 50.628038][ T5629] Call trace: [ 50.628042][ T5629] show_stack+0x2c/0x3c (C) [ 50.628073][ T5629] dump_stack_lvl+0xe4/0x150 [ 50.628086][ T5629] print_report+0x178/0x518 [ 50.628099][ T5629] kasan_report+0xd8/0x138 [ 50.628110][ T5629] __asan_report_store8_noabort+0x20/0x2c [ 50.628123][ T5629] binder_add_device+0x64/0xac [ 50.628136][ T5629] binderfs_binder_device_create+0x798/0x958 [ 50.628149][ T5629] binderfs_fill_super+0x7ac/0xc04 [ 50.628162][ T5629] get_tree_nodev+0xb4/0x144 [ 50.628173][ T5629] binderfs_fs_context_get_tree+0x28/0x38 [ 50.628186][ T5629] vfs_get_tree+0x90/0x28c [ 50.628197][ T5629] do_new_mount+0x278/0x900 [ 50.628208][ T5629] path_mount+0x590/0xe04 [ 50.628218][ T5629] __arm64_sys_mount+0x4d8/0x5ac [ 50.628229][ T5629] invoke_syscall+0x98/0x2b8 [ 50.628240][ T5629] el0_svc_common+0x130/0x23c [ 50.628251][ T5629] do_el0_svc+0x48/0x58 [ 50.628261][ T5629] el0_svc+0x54/0x168 [ 50.628272][ T5629] el0t_64_sync_handler+0x84/0x108 [ 50.628282][ T5629] el0t_64_sync+0x198/0x19c [ 50.628293][ T5629] [ 50.659459][ T5629] Allocated by task 5622: [ 50.660569][ T5629] kasan_save_track+0x40/0x78 [ 50.661798][ T5629] kasan_save_alloc_info+0x40/0x50 [ 50.663165][ T5629] __kasan_kmalloc+0x90/0xa8 [ 50.664335][ T5629] __kmalloc_cache_noprof+0x2c8/0x3f0 [ 50.665619][ T5629] binderfs_binder_device_create+0x18c/0x958 [ 50.667191][ T5629] binderfs_fill_super+0x7ac/0xc04 [ 50.668487][ T5629] get_tree_nodev+0xb4/0x144 [ 50.669683][ T5629] binderfs_fs_context_get_tree+0x28/0x38 [ 50.671224][ T5629] vfs_get_tree+0x90/0x28c [ 50.672429][ T5629] do_new_mount+0x278/0x900 [ 50.673745][ T5629] path_mount+0x590/0xe04 [ 50.674921][ T5629] __arm64_sys_mount+0x4d8/0x5ac [ 50.676178][ T5629] invoke_syscall+0x98/0x2b8 [ 50.677415][ T5629] el0_svc_common+0x130/0x23c [ 50.678770][ T5629] do_el0_svc+0x48/0x58 [ 50.679899][ T5629] el0_svc+0x54/0x168 [ 50.680959][ T5629] el0t_64_sync_handler+0x84/0x108 [ 50.682339][ T5629] el0t_64_sync+0x198/0x19c [ 50.683521][ T5629] [ 50.684093][ T5629] Freed by task 5622: [ 50.685131][ T5629] kasan_save_track+0x40/0x78 [ 50.686409][ T5629] kasan_save_free_info+0x54/0x6c [ 50.687761][ T5629] __kasan_slab_free+0x48/0x68 [ 50.689019][ T5629] kfree+0x16c/0x484 [ 50.690004][ T5629] binderfs_evict_inode+0x160/0x220 [ 50.691332][ T5629] evict+0x444/0x978 [ 50.692321][ T5629] iput+0x740/0x8e8 [ 50.693307][ T5629] dentry_unlink_inode+0x3a0/0x4e0 [ 50.694662][ T5629] __dentry_kill+0x178/0x5e8 [ 50.695928][ T5629] shrink_kill+0xd4/0x2cc [ 50.697054][ T5629] shrink_dentry_list+0x31c/0x768 [ 50.698262][ T5629] shrink_dcache_parent+0xc4/0x374 [ 50.699552][ T5629] do_one_tree+0x30/0xfc [ 50.700660][ T5629] shrink_dcache_for_umount+0xd8/0x188 [ 50.702012][ T5629] generic_shutdown_super+0x68/0x2bc [ 50.703377][ T5629] kill_litter_super+0x74/0xb8 [ 50.704560][ T5629] binderfs_kill_super+0x44/0x9c [ 50.705763][ T5629] deactivate_locked_super+0xc4/0x12c [ 50.707169][ T5629] deactivate_super+0xe0/0x100 [ 50.708400][ T5629] cleanup_mnt+0x34c/0x3dc [ 50.709572][ T5629] __cleanup_mnt+0x20/0x30 [ 50.710677][ T5629] task_work_run+0x230/0x2e0 [ 50.711880][ T5629] do_exit+0x4e8/0x1acc [ 50.713000][ T5629] do_group_exit+0x194/0x22c [ 50.714188][ T5629] get_signal+0x1418/0x1534 [ 50.715352][ T5629] do_signal+0x22c/0x39e4 [ 50.716345][ T5629] do_notify_resume+0x74/0x1f4 [ 50.717576][ T5629] el0_svc+0xac/0x168 [ 50.718562][ T5629] el0t_64_sync_handler+0x84/0x108 [ 50.719869][ T5629] el0t_64_sync+0x198/0x19c [ 50.720952][ T5629] [ 50.721535][ T5629] The buggy address belongs to the object at ffff0000cbb9b800 [ 50.721535][ T5629] which belongs to the cache kmalloc-512 of size 512 [ 50.725220][ T5629] The buggy address is located 8 bytes inside of [ 50.725220][ T5629] freed 512-byte region [ffff0000cbb9b800, ffff0000cbb9ba00) [ 50.728720][ T5629] [ 50.729327][ T5629] The buggy address belongs to the physical page: [ 50.730928][ T5629] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10bb98 [ 50.733283][ T5629] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 50.735407][ T5629] flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) [ 50.737490][ T5629] page_type: f5(slab) [ 50.738434][ T5629] raw: 05ffc00000000040 ffff0000c0001c80 dead000000000100 dead000000000122 [ 50.740743][ T5629] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 50.742915][ T5629] head: 05ffc00000000040 ffff0000c0001c80 dead000000000100 dead000000000122 [ 50.745181][ T5629] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 50.747402][ T5629] head: 05ffc00000000002 fffffdffc32ee601 ffffffffffffffff 0000000000000000 [ 50.749562][ T5629] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 [ 50.751759][ T5629] page dumped because: kasan: bad access detected [ 50.753470][ T5629] [ 50.754007][ T5629] Memory state around the buggy address: [ 50.755505][ T5629] ffff0000cbb9b700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 50.757611][ T5629] ffff0000cbb9b780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 50.759731][ T5629] >ffff0000cbb9b800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.761876][ T5629] ^ [ 50.762994][ T5629] ffff0000cbb9b880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.765040][ T5629] ffff0000cbb9b900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 50.767107][ T5629] ================================================================== [ 50.769655][ T5629] Disabling lock debugging due to kernel taint [ 51.414164][ T1843] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.416492][ T1843] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.423910][ T11] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 51.426168][ T11] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 51.780617][ T5679] chnl_net:caif_netlink_parms(): no params data found [ 51.801643][ T5679] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.803599][ T5679] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.806519][ T5679] bridge_slave_0: entered allmulticast mode [ 51.808352][ T5679] bridge_slave_0: entered promiscuous mode [ 51.810685][ T5679] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.812463][ T5679] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.814305][ T5679] bridge_slave_1: entered allmulticast mode [ 51.816634][ T5679] bridge_slave_1: entered promiscuous mode [ 51.823740][ T5679] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.826946][ T5679] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.834643][ T5679] team0: Port device team_slave_0 added [ 51.958304][ T5679] team0: Port device team_slave_1 added [ 51.964697][ T5679] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 51.966763][ T5679] 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. [ 51.973384][ T5679] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 51.976926][ T5679] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 51.978694][ T5679] 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. [ 51.985541][ T5679] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.996693][ T5679] hsr_slave_0: entered promiscuous mode [ 51.998515][ T5679] hsr_slave_1: entered promiscuous mode [ 52.066621][ T5679] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 52.069422][ T5679] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 52.072084][ T5679] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 52.074891][ T5679] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 52.083009][ T5679] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.084774][ T5679] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.086775][ T5679] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.088542][ T5679] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.244959][ T5679] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.249795][ T11] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.252203][ T11] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.256370][ T5679] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.259975][ T572] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.261802][ T572] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.265953][ T11] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.267803][ T11] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.359169][ T5679] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 52.369529][ T5679] veth0_vlan: entered promiscuous mode [ 52.373393][ T5679] veth1_vlan: entered promiscuous mode [ 52.380730][ T5679] veth0_macvtap: entered promiscuous mode [ 52.383386][ T5679] veth1_macvtap: entered promiscuous mode [ 52.426276][ T5679] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 52.468204][ T5679] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 52.471182][ T5679] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.473423][ T5679] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.476243][ T5679] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.478511][ T5679] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 52.554629][ T5178] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.556658][ T5178] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.558632][ T5178] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.560920][ T5178] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.563172][ T5178] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.565221][ T5178] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 1970/01/01 00:00:52 executed programs: 0 [ 52.777839][ T53] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 52.779990][ T53] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 52.782211][ T53] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 52.784492][ T53] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 52.786978][ T53] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 52.788920][ T53] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 53.056719][ T252] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.090112][ T5706] chnl_net:caif_netlink_parms(): no params data found [ 53.136280][ T252] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.147276][ T5706] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.149176][ T5706] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.150937][ T5706] bridge_slave_0: entered allmulticast mode [ 53.152744][ T5706] bridge_slave_0: entered promiscuous mode [ 53.154975][ T5706] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.157587][ T5706] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.159446][ T5706] bridge_slave_1: entered allmulticast mode [ 53.161245][ T5706] bridge_slave_1: entered promiscuous mode [ 53.216310][ T252] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.223344][ T5706] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.226836][ T5706] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.235060][ T5706] team0: Port device team_slave_0 added [ 53.237515][ T5706] team0: Port device team_slave_1 added [ 53.244195][ T5706] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 53.246407][ T5706] 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. [ 53.253172][ T5706] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 53.287000][ T252] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 53.290792][ T5706] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 53.292628][ T5706] 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. [ 53.299572][ T5706] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.310747][ T5706] hsr_slave_0: entered promiscuous mode [ 53.312613][ T5706] hsr_slave_1: entered promiscuous mode [ 53.314302][ T5706] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 53.316419][ T5706] Cannot create hsr debugfs directory [ 54.816144][ T53] Bluetooth: hci0: command tx timeout [ 55.819605][ T252] bridge_slave_1: left allmulticast mode [ 55.821239][ T252] bridge_slave_1: left promiscuous mode [ 55.822750][ T252] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.827818][ T252] bridge_slave_0: left allmulticast mode [ 55.829531][ T252] bridge_slave_0: left promiscuous mode [ 55.831056][ T252] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.895551][ T53] Bluetooth: hci0: command tx timeout [ 57.526768][ T252] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 57.567104][ T252] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 57.626342][ T252] bond0 (unregistering): Released all slaves [ 57.747535][ T252] hsr_slave_0: left promiscuous mode [ 57.749290][ T252] hsr_slave_1: left promiscuous mode [ 57.750863][ T252] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 57.752767][ T252] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 57.754777][ T252] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 57.757073][ T252] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 57.760764][ T252] veth1_macvtap: left promiscuous mode [ 57.762328][ T252] veth0_macvtap: left promiscuous mode [ 57.763822][ T252] veth1_vlan: left promiscuous mode [ 57.765225][ T252] veth0_vlan: left promiscuous mode [ 58.975604][ T53] Bluetooth: hci0: command tx timeout [ 59.556004][ T252] team0 (unregistering): Port device team_slave_1 removed [ 59.836032][ T252] 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-build2619605255=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at 568559e4e6 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=568559e4e604140cecd9fc4835eaa0298a1cadcc -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250201-125757'" -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=\"568559e4e604140cecd9fc4835eaa0298a1cadcc\" /usr/lib/gcc-cross/aarch64-linux-gnu/12/../../../../aarch64-linux-gnu/bin/ld: /tmp/ccMRh2BX.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