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 ffff0000d4b5a408 by task syz-executor/6086 CPU: 1 UID: 0 PID: 6086 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-gd082ecbc71e9 #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 6076: 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 6076: 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 ffff0000d4b5a400 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of freed 512-byte region [ffff0000d4b5a400, ffff0000d4b5a600) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x114b58 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: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 05ffc00000000040 ffff0000c0001c80 0000000000000000 0000000000000001 head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 head: 05ffc00000000002 fffffdffc352d601 ffffffffffffffff 0000000000000000 head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d4b5a300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d4b5a380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000d4b5a400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000d4b5a480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000d4b5a500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Warning: Permanently added '10.128.0.226' (ED25519) to the list of known hosts. 1970/01/01 00:00:36 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:00:37 parsed 1 programs [ 40.171773][ T6051] cgroup: Unknown subsys name 'net' [ 40.448434][ T6051] cgroup: Unknown subsys name 'cpuset' [ 40.452062][ T6051] cgroup: Unknown subsys name 'rlimit' [ 40.453549][ T6051] cgroup: Unknown subsys name 'memory' [ 40.634736][ T6051] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SS [ 54.038190][ T6099] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 54.040752][ T6099] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 54.045711][ T6099] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 54.048088][ T6099] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 54.050065][ T6099] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 54.051961][ T6099] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 54.141784][ T6086] ================================================================== [ 54.143722][ T6086] BUG: KASAN: slab-use-after-free in binder_add_device+0x64/0xac [ 54.145510][ T6086] Write of size 8 at addr ffff0000d4b5a408 by task syz-executor/6086 [ 54.147412][ T6086] [ 54.147980][ T6086] CPU: 1 UID: 0 PID: 6086 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-gd082ecbc71e9 #0 [ 54.147994][ T6086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 54.148001][ T6086] Call trace: [ 54.148004][ T6086] show_stack+0x2c/0x3c (C) [ 54.148023][ T6086] dump_stack_lvl+0xe4/0x150 [ 54.148037][ T6086] print_report+0x178/0x530 [ 54.148049][ T6086] kasan_report+0xd8/0x138 [ 54.148066][ T6086] __asan_report_store8_noabort+0x20/0x2c [ 54.148078][ T6086] binder_add_device+0x64/0xac [ 54.148092][ T6086] binderfs_binder_device_create+0x7fc/0x9fc [ 54.148105][ T6086] binderfs_fill_super+0x7f4/0xc8c [ 54.148117][ T6086] get_tree_nodev+0xb4/0x144 [ 54.148128][ T6086] binderfs_fs_context_get_tree+0x28/0x38 [ 54.148140][ T6086] vfs_get_tree+0x90/0x28c [ 54.148151][ T6086] do_new_mount+0x278/0x900 [ 54.148163][ T6086] path_mount+0x590/0xe04 [ 54.148173][ T6086] __arm64_sys_mount+0x4f4/0x5d0 [ 54.148184][ T6086] invoke_syscall+0x98/0x2b8 [ 54.148196][ T6086] el0_svc_common+0x130/0x23c [ 54.148207][ T6086] do_el0_svc+0x48/0x58 [ 54.148217][ T6086] el0_svc+0x54/0x168 [ 54.148230][ T6086] el0t_64_sync_handler+0x84/0x108 [ 54.148243][ T6086] el0t_64_sync+0x198/0x19c [ 54.148254][ T6086] [ 54.174402][ T6086] Allocated by task 6076: [ 54.174414][ T6086] kasan_save_track+0x40/0x78 [ 54.178022][ T6086] kasan_save_alloc_info+0x40/0x50 [ 54.179140][ T6086] __kasan_kmalloc+0xac/0xc4 [ 54.180197][ T6086] __kmalloc_cache_noprof+0x2cc/0x428 [ 54.181374][ T6086] binderfs_binder_device_create+0x18c/0x9fc [ 54.182665][ T6086] binderfs_fill_super+0x7f4/0xc8c [ 54.183879][ T6086] get_tree_nodev+0xb4/0x144 [ 54.184912][ T6086] binderfs_fs_context_get_tree+0x28/0x38 [ 54.186226][ T6086] vfs_get_tree+0x90/0x28c [ 54.187203][ T6086] do_new_mount+0x278/0x900 [ 54.188233][ T6086] path_mount+0x590/0xe04 [ 54.189201][ T6086] __arm64_sys_mount+0x4f4/0x5d0 [ 54.190324][ T6086] invoke_syscall+0x98/0x2b8 [ 54.191402][ T6086] el0_svc_common+0x130/0x23c [ 54.192430][ T6086] do_el0_svc+0x48/0x58 [ 54.193339][ T6086] el0_svc+0x54/0x168 [ 54.194214][ T6086] el0t_64_sync_handler+0x84/0x108 [ 54.195368][ T6086] el0t_64_sync+0x198/0x19c [ 54.196325][ T6086] [ 54.196807][ T6086] Freed by task 6076: [ 54.197681][ T6086] kasan_save_track+0x40/0x78 [ 54.198705][ T6086] kasan_save_free_info+0x54/0x6c [ 54.199805][ T6086] __kasan_slab_free+0x64/0x8c [ 54.200889][ T6086] kfree+0x180/0x478 [ 54.201792][ T6086] binderfs_evict_inode+0x160/0x220 [ 54.202943][ T6086] evict+0x444/0x978 [ 54.203791][ T6086] iput+0x740/0x8e8 [ 54.204636][ T6086] dentry_unlink_inode+0x3a0/0x4e0 [ 54.205783][ T6086] __dentry_kill+0x178/0x5e8 [ 54.206827][ T6086] shrink_kill+0xd4/0x2cc [ 54.207762][ T6086] shrink_dentry_list+0x31c/0x768 [ 54.208892][ T6086] shrink_dcache_parent+0xc4/0x374 [ 54.209997][ T6086] do_one_tree+0x30/0xfc [ 54.211010][ T6086] shrink_dcache_for_umount+0xd8/0x188 [ 54.212280][ T6086] generic_shutdown_super+0x68/0x2bc [ 54.213423][ T6086] kill_litter_super+0x74/0xb8 [ 54.214446][ T6086] binderfs_kill_super+0x44/0x9c [ 54.215577][ T6086] deactivate_locked_super+0xc4/0x12c [ 54.216788][ T6086] deactivate_super+0xe0/0x100 [ 54.217828][ T6086] cleanup_mnt+0x34c/0x3dc [ 54.218786][ T6086] __cleanup_mnt+0x20/0x30 [ 54.219757][ T6086] task_work_run+0x230/0x2e0 [ 54.220784][ T6086] do_exit+0x4e8/0x1acc [ 54.221728][ T6086] do_group_exit+0x194/0x22c [ 54.222795][ T6086] get_signal+0x13e4/0x1500 [ 54.223775][ T6086] do_signal+0x22c/0x3a04 [ 54.224723][ T6086] do_notify_resume+0x74/0x1f4 [ 54.225783][ T6086] el0_svc+0xac/0x168 [ 54.226700][ T6086] el0t_64_sync_handler+0x84/0x108 [ 54.227865][ T6086] el0t_64_sync+0x198/0x19c [ 54.228888][ T6086] [ 54.229396][ T6086] The buggy address belongs to the object at ffff0000d4b5a400 [ 54.229396][ T6086] which belongs to the cache kmalloc-512 of size 512 [ 54.232458][ T6086] The buggy address is located 8 bytes inside of [ 54.232458][ T6086] freed 512-byte region [ffff0000d4b5a400, ffff0000d4b5a600) [ 54.232512][ T3386] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.235345][ T6086] [ 54.235351][ T6086] The buggy address belongs to the physical page: [ 54.235357][ T6086] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x114b58 [ 54.241128][ T6086] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 54.241143][ T6086] anon flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) [ 54.245135][ T3386] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.245447][ T6086] page_type: f5(slab) [ 54.245463][ T6086] raw: 05ffc00000000040 ffff0000c0001c80 0000000000000000 0000000000000001 [ 54.245472][ T6086] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 54.245482][ T6086] head: 05ffc00000000040 ffff0000c0001c80 0000000000000000 0000000000000001 [ 54.245491][ T6086] head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 54.245501][ T6086] head: 05ffc00000000002 fffffdffc352d601 ffffffffffffffff 0000000000000000 [ 54.245510][ T6086] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 [ 54.245516][ T6086] page dumped because: kasan: bad access detected [ 54.245520][ T6086] [ 54.245523][ T6086] Memory state around the buggy address: [ 54.245529][ T6086] ffff0000d4b5a300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 54.245537][ T6086] ffff0000d4b5a380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 54.254863][ T6077] chnl_net:caif_netlink_parms(): no params data found [ 54.255142][ T6086] >ffff0000d4b5a400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 54.273727][ T6086] ^ [ 54.274866][ T6086] ffff0000d4b5a480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 54.276940][ T6086] ffff0000d4b5a500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 54.279017][ T6086] ================================================================== [ 54.282939][ T6086] Disabling lock debugging due to kernel taint [ 54.290874][ T1750] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 54.292869][ T1750] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 54.299298][ T6077] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.301308][ T6077] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.303127][ T6077] bridge_slave_0: entered allmulticast mode [ 54.304962][ T6077] bridge_slave_0: entered promiscuous mode [ 54.307444][ T6077] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.309295][ T6077] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.311219][ T6077] bridge_slave_1: entered allmulticast mode [ 54.312914][ T6077] bridge_slave_1: entered promiscuous mode [ 54.341896][ T6077] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.490496][ T6077] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.501601][ T6077] team0: Port device team_slave_0 added [ 54.504399][ T6077] team0: Port device team_slave_1 added [ 54.522483][ T6077] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 54.524220][ T6077] 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. [ 54.532082][ T6077] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.541215][ T6077] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.542922][ T6077] 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. [ 54.550225][ T6077] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.585271][ T6077] hsr_slave_0: entered promiscuous mode [ 54.587124][ T6077] hsr_slave_1: entered promiscuous mode [ 54.814152][ T6077] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 54.817352][ T6077] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 54.820042][ T6077] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 54.822913][ T6077] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 54.833541][ T6077] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.835482][ T6077] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.837370][ T6077] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.839181][ T6077] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.854785][ T6077] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.860012][ T3386] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.862150][ T3386] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.868122][ T6077] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.871870][ T638] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.873722][ T638] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.908230][ T3386] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.910012][ T3386] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.929607][ T6077] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 54.932264][ T6077] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 54.971094][ T6077] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 55.166586][ T6077] veth0_vlan: entered promiscuous mode [ 55.169817][ T6077] veth1_vlan: entered promiscuous mode [ 55.177979][ T6077] veth0_macvtap: entered promiscuous mode [ 55.180573][ T6077] veth1_macvtap: entered promiscuous mode [ 55.185262][ T6077] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 55.189382][ T6077] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 55.192648][ T6077] netdevsim netdevsim4 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.194862][ T6077] netdevsim netdevsim4 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.197288][ T6077] netdevsim netdevsim4 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 55.199581][ T6077] netdevsim netdevsim4 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:00:55 executed programs: 0 [ 55.322724][ T5619] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 55.324755][ T5619] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 55.327416][ T5619] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 55.329491][ T5619] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 55.331537][ T5619] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 55.333485][ T5619] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 55.497476][ T6155] chnl_net:caif_netlink_parms(): no params data found [ 55.513985][ T6155] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.516536][ T6155] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.518369][ T6155] bridge_slave_0: entered allmulticast mode [ 55.520307][ T6155] bridge_slave_0: entered promiscuous mode [ 55.551101][ T6155] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.552942][ T6155] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.554832][ T6155] bridge_slave_1: entered allmulticast mode [ 55.556893][ T6155] bridge_slave_1: entered promiscuous mode [ 55.565989][ T6155] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.569300][ T6155] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.577927][ T6155] team0: Port device team_slave_0 added [ 55.580230][ T6155] team0: Port device team_slave_1 added [ 55.685992][ T6155] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 55.687678][ T6155] 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. [ 55.694226][ T6155] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 55.698024][ T6155] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 55.699912][ T6155] 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. [ 55.706619][ T6155] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 55.816750][ T6155] hsr_slave_0: entered promiscuous mode [ 55.818445][ T6155] hsr_slave_1: entered promiscuous mode [ 55.820108][ T6155] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 55.822023][ T6155] Cannot create hsr debugfs directory [ 55.853868][ T6155] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 55.857116][ T6155] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 55.859917][ T6155] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 55.862608][ T6155] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 55.873448][ T6155] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.875285][ T6155] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.877328][ T6155] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.879168][ T6155] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.902712][ T6155] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.909107][ T1750] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.911328][ T1750] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.915891][ T6155] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.920407][ T1750] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.922260][ T1750] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.927873][ T11] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.929799][ T11] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.974660][ T6155] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 55.989580][ T6155] veth0_vlan: entered promiscuous mode [ 55.992868][ T6155] veth1_vlan: entered promiscuous mode [ 56.001373][ T6155] veth0_macvtap: entered promiscuous mode [ 56.004139][ T6155] veth1_macvtap: entered promiscuous mode [ 56.048377][ T6155] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 56.051192][ T6155] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 56.054423][ T6155] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 56.058312][ T6155] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 56.060950][ T6155] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 56.064119][ T6155] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 56.068580][ T6155] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.070823][ T6155] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.073010][ T6155] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.075186][ T6155] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 56.097703][ T638] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.101442][ T638] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 56.109619][ T11] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 56.111567][ T11] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 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-build4079982463=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at d34966d146 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=d34966d146f584d390b49f213d1fccd59548dc6d -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250221-172117'" -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=\"d34966d146f584d390b49f213d1fccd59548dc6d\" /usr/lib/gcc-cross/aarch64-linux-gnu/12/../../../../aarch64-linux-gnu/bin/ld: /tmp/ccwD9y02.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