][ T8475] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 625.406484][ T8475] ? netif_receive_skb+0x102/0xbf0 [ 625.406573][ T8475] ? netif_receive_skb+0x102/0xbf0 [ 625.406656][ T8475] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 625.406747][ T8475] netif_receive_skb+0x4af/0xbf0 [ 625.406872][ T8475] ? __pfx_netif_receive_skb+0x10/0x10 [ 625.406979][ T8475] ? tun_rx_batched+0x185/0x790 [ 625.407054][ T8475] tun_rx_batched+0x1de/0x790 [ 625.407138][ T8475] ? __pfx_tun_rx_batched+0x10/0x10 [ 625.407204][ T8475] ? lock_acquire+0x115/0x350 [ 625.407290][ T8475] ? tun_get_user+0x23ba/0x44d0 [ 625.407355][ T8475] ? __local_bh_enable_ip+0xd6/0x140 [ 625.407435][ T8475] ? tun_get_user+0x27b0/0x44d0 [ 625.407501][ T8475] tun_get_user+0x2be0/0x44d0 [ 625.407608][ T8475] ? tun_get_user+0x27b0/0x44d0 [ 625.407685][ T8475] ? aa_file_perm+0x4ed/0x15f0 [ 625.407763][ T8475] ? __pfx_tun_get_user+0x10/0x10 [ 625.407824][ T8475] ? __lock_acquire+0x747/0x2de0 [ 625.407903][ T8475] ? kstrtoull+0x137/0x1d0 [ 625.408012][ T8475] ? ref_tracker_alloc+0x341/0x4b0 [ 625.408092][ T8475] ? lock_acquire+0x115/0x350 [ 625.408156][ T8475] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 625.408238][ T8475] ? lock_acquire+0x115/0x350 [ 625.408303][ T8475] ? tun_get+0x1c/0x2f0 [ 625.408542][ T8475] ? tun_get+0x1c/0x2f0 [ 625.408604][ T8475] ? tun_get+0x1c/0x2f0 [ 625.408682][ T8475] tun_chr_write_iter+0x113/0x200 [ 625.408746][ T8475] vfs_write+0x612/0xba0 [ 625.408785][ T8475] ? __pfx_vfs_write+0x10/0x10 [ 625.408828][ T8475] ? do_sys_openat2+0x14e/0x200 [ 625.408866][ T8475] ksys_write+0x150/0x270 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 625.408977][ T8475] ? __pfx_ksys_write+0x10/0x10 [ 625.409106][ T8475] __do_fast_syscall_32+0x27a/0x6a0 [ 625.409181][ T8475] ? do_fast_syscall_32+0x33/0x70 [ 625.409249][ T8475] ? irqentry_exit+0x10f/0x910 [ 625.409304][ T8475] ? trace_irq_disable+0x3b/0x140 [ 625.409389][ T8475] do_fast_syscall_32+0x33/0x70 [ 625.409455][ T8475] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 625.409530][ T8475] RIP: 0023:0xf7d7f0ec executing program [ 625.409595][ T8475] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 625.409650][ T8475] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 625.409715][ T8475] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 625.409751][ T8475] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 625.409792][ T8475] RBP: 00000000000000dc R08: 0000000000000000 R09: 0000000000000000 [ 625.409819][ T8475] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 625.409852][ T8475] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 625.409939][ T8475] [ 625.415252][ T8475] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 625.497672][ T8475] batman_adv: batadv0: Removing interface: syzkaller0 [ 625.699553][ T8476] batman_adv: batadv0: Adding interface: syzkaller0 [ 625.699633][ T8476] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 625.699777][ T8476] batman_adv: batadv0: Interface activated: syzkaller0 [ 625.705552][ T8476] FAULT_INJECTION: forcing a failure. [ 625.705552][ T8476] name failslab, interval 1, probability 0, space 0, times 0 [ 625.705699][ T8476] CPU: 1 UID: 0 PID: 8476 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 625.705771][ T8476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 625.705818][ T8476] Call Trace: [ 625.705852][ T8476] [ 625.705886][ T8476] dump_stack_lvl+0xe8/0x150 [ 625.706000][ T8476] should_fail_ex+0x410/0x560 [ 625.706094][ T8476] should_failslab+0xa8/0x100 [ 625.706174][ T8476] __kmalloc_cache_noprof+0xa3/0x600 [ 625.706259][ T8476] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 625.706353][ T8476] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 625.706480][ T8476] batadv_neigh_ifinfo_new+0x95/0x300 [ 625.706600][ T8476] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 625.706753][ T8476] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 625.706874][ T8476] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 625.706987][ T8476] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 625.707102][ T8476] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 625.707214][ T8476] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 625.707348][ T8476] batadv_iv_ogm_receive+0xc13/0x1740 [ 625.707502][ T8476] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 625.707656][ T8476] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 625.707773][ T8476] ? rcu_is_watching+0x16/0xb0 [ 625.707856][ T8476] ? __alloc_skb+0x27a/0x7a0 [ 625.707921][ T8476] ? trace_kmem_cache_alloc+0x29/0xe0 [ 625.708049][ T8476] batadv_batman_skb_recv+0x4b6/0x870 [ 625.708126][ T8476] ? __pfx_batadv_batman_skb_recv+0x10/0x10 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 625.708221][ T8476] ? netif_receive_skb+0x102/0xbf0 [ 625.708319][ T8476] ? netif_receive_skb+0x102/0xbf0 [ 625.708416][ T8476] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 625.708489][ T8476] netif_receive_skb+0x4af/0xbf0 [ 625.708617][ T8476] ? __pfx_netif_receive_skb+0x10/0x10 [ 625.708763][ T8476] ? tun_rx_batched+0x185/0x790 [ 625.708847][ T8476] tun_rx_batched+0x1de/0x790 [ 625.708941][ T8476] ? __pfx_tun_rx_batched+0x10/0x10 [ 625.709014][ T8476] ? lock_acquire+0x115/0x350 executing program [ 625.709101][ T8476] ? tun_get_user+0x23ba/0x44d0 [ 625.709181][ T8476] ? __local_bh_enable_ip+0xd6/0x140 [ 625.709267][ T8476] ? tun_get_user+0x27b0/0x44d0 [ 625.709350][ T8476] tun_get_user+0x2be0/0x44d0 [ 625.709482][ T8476] ? tun_get_user+0x27b0/0x44d0 [ 625.709622][ T8476] ? aa_file_perm+0x4ed/0x15f0 [ 625.709749][ T8476] ? __pfx_tun_get_user+0x10/0x10 [ 625.709832][ T8476] ? __lock_acquire+0x747/0x2de0 [ 625.709914][ T8476] ? kstrtoull+0x137/0x1d0 [ 625.710051][ T8476] ? ref_tracker_alloc+0x341/0x4b0 [ 625.710133][ T8476] ? lock_acquire+0x115/0x350 [ 625.710205][ T8476] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 625.710290][ T8476] ? lock_acquire+0x115/0x350 [ 625.710363][ T8476] ? tun_get+0x1c/0x2f0 [ 625.710454][ T8476] ? tun_get+0x1c/0x2f0 [ 625.710516][ T8476] ? tun_get+0x1c/0x2f0 [ 625.710599][ T8476] tun_chr_write_iter+0x113/0x200 [ 625.710692][ T8476] vfs_write+0x612/0xba0 [ 625.710844][ T8476] ? __pfx_vfs_write+0x10/0x10 [ 625.710977][ T8476] ? do_sys_openat2+0x14e/0x200 [ 625.711092][ T8476] ksys_write+0x150/0x270 [ 625.711193][ T8476] ? __pfx_ksys_write+0x10/0x10 [ 625.711316][ T8476] __do_fast_syscall_32+0x27a/0x6a0 [ 625.711398][ T8476] ? do_fast_syscall_32+0x33/0x70 [ 625.711480][ T8476] ? irqentry_exit+0x10f/0x910 [ 625.711557][ T8476] ? trace_irq_disable+0x3b/0x140 [ 625.711658][ T8476] do_fast_syscall_32+0x33/0x70 [ 625.711740][ T8476] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 625.711823][ T8476] RIP: 0023:0xf7d7f0ec [ 625.711884][ T8476] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 625.711943][ T8476] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 625.712015][ T8476] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 625.712071][ T8476] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 625.712113][ T8476] RBP: 00000000000000dd R08: 0000000000000000 R09: 0000000000000000 [ 625.712151][ T8476] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 625.712188][ T8476] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 625.712261][ T8476] [ 625.725876][ T8476] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 625.802014][ T8476] batman_adv: batadv0: Removing interface: syzkaller0 [ 626.010659][ T8477] batman_adv: batadv0: Adding interface: syzkaller0 [ 626.010713][ T8477] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 626.010811][ T8477] batman_adv: batadv0: Interface activated: syzkaller0 [ 626.015262][ T8477] FAULT_INJECTION: forcing a failure. the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 626.015262][ T8477] name failslab, interval 1, probability 0, space 0, times 0 [ 626.015339][ T8477] CPU: 1 UID: 0 PID: 8477 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 626.015420][ T8477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 626.015479][ T8477] Call Trace: [ 626.015503][ T8477] [ 626.015526][ T8477] dump_stack_lvl+0xe8/0x150 [ 626.015631][ T8477] should_fail_ex+0x410/0x560 [ 626.015710][ T8477] should_failslab+0xa8/0x100 [ 626.015805][ T8477] __kmalloc_cache_noprof+0xa3/0x600 executing program [ 626.015865][ T8477] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 626.015962][ T8477] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 626.016070][ T8477] batadv_neigh_ifinfo_new+0x95/0x300 [ 626.016182][ T8477] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 626.016335][ T8477] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 626.016437][ T8477] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 626.016537][ T8477] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 626.016637][ T8477] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 626.016749][ T8477] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 626.016896][ T8477] batadv_iv_ogm_receive+0xc13/0x1740 [ 626.017026][ T8477] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 626.017154][ T8477] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 626.017243][ T8477] ? rcu_is_watching+0x16/0xb0 [ 626.017305][ T8477] ? __alloc_skb+0x27a/0x7a0 [ 626.017370][ T8477] ? trace_kmem_cache_alloc+0x29/0xe0 [ 626.017480][ T8477] batadv_batman_skb_recv+0x4b6/0x870 [ 626.017557][ T8477] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 626.017636][ T8477] ? netif_receive_skb+0x102/0xbf0 [ 626.017722][ T8477] ? netif_receive_skb+0x102/0xbf0 [ 626.017819][ T8477] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 626.017887][ T8477] netif_receive_skb+0x4af/0xbf0 [ 626.017988][ T8477] ? __pfx_netif_receive_skb+0x10/0x10 [ 626.018097][ T8477] ? tun_rx_batched+0x185/0x790 [ 626.018192][ T8477] tun_rx_batched+0x1de/0x790 [ 626.018289][ T8477] ? __pfx_tun_rx_batched+0x10/0x10 [ 626.018354][ T8477] ? lock_acquire+0x115/0x350 [ 626.018465][ T8477] ? tun_get_user+0x23ba/0x44d0 [ 626.018528][ T8477] ? __local_bh_enable_ip+0xd6/0x140 [ 626.018605][ T8477] ? tun_get_user+0x27b0/0x44d0 [ 626.018673][ T8477] tun_get_user+0x2be0/0x44d0 [ 626.018782][ T8477] ? tun_get_user+0x27b0/0x44d0 [ 626.018855][ T8477] ? aa_file_perm+0x4ed/0x15f0 [ 626.018882][ T8477] ? __pfx_tun_get_user+0x10/0x10 [ 626.018907][ T8477] ? __lock_acquire+0x747/0x2de0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 626.018932][ T8477] ? kstrtoull+0x137/0x1d0 [ 626.019062][ T8477] ? ref_tracker_alloc+0x341/0x4b0 [ 626.019182][ T8477] ? lock_acquire+0x115/0x350 [ 626.019241][ T8477] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 626.019322][ T8477] ? lock_acquire+0x115/0x350 [ 626.019380][ T8477] ? tun_get+0x1c/0x2f0 [ 626.019455][ T8477] ? tun_get+0x1c/0x2f0 [ 626.019518][ T8477] ? tun_get+0x1c/0x2f0 [ 626.019586][ T8477] tun_chr_write_iter+0x113/0x200 executing program [ 626.019660][ T8477] vfs_write+0x612/0xba0 [ 626.019780][ T8477] ? __pfx_vfs_write+0x10/0x10 [ 626.019903][ T8477] ? do_sys_openat2+0x14e/0x200 [ 626.020001][ T8477] ksys_write+0x150/0x270 [ 626.020097][ T8477] ? __pfx_ksys_write+0x10/0x10 [ 626.020209][ T8477] __do_fast_syscall_32+0x27a/0x6a0 [ 626.020289][ T8477] ? do_fast_syscall_32+0x33/0x70 [ 626.020355][ T8477] ? irqentry_exit+0x10f/0x910 [ 626.020421][ T8477] ? trace_irq_disable+0x3b/0x140 [ 626.020544][ T8477] do_fast_syscall_32+0x33/0x70 [ 626.020603][ T8477] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 626.020678][ T8477] RIP: 0023:0xf7d7f0ec [ 626.020773][ T8477] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 626.020820][ T8477] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 626.020903][ T8477] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 626.020967][ T8477] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 626.021002][ T8477] RBP: 00000000000000de R08: 0000000000000000 R09: 0000000000000000 [ 626.021035][ T8477] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 626.021069][ T8477] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 626.021156][ T8477] [ 626.029331][ T8477] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 626.135182][ T8477] batman_adv: batadv0: Removing interface: syzkaller0 [ 626.424565][ T8478] batman_adv: batadv0: Adding interface: syzkaller0 [ 626.424620][ T8478] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 626.424753][ T8478] batman_adv: batadv0: Interface activated: syzkaller0 [ 626.430784][ T8478] FAULT_INJECTION: forcing a failure. [ 626.430784][ T8478] name failslab, interval 1, probability 0, space 0, times 0 [ 626.430935][ T8478] CPU: 1 UID: 0 PID: 8478 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 626.431007][ T8478] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 626.431042][ T8478] Call Trace: [ 626.431071][ T8478] [ 626.431095][ T8478] dump_stack_lvl+0xe8/0x150 [ 626.431203][ T8478] should_fail_ex+0x410/0x560 [ 626.431302][ T8478] should_failslab+0xa8/0x100 [ 626.431382][ T8478] __kmalloc_cache_noprof+0xa3/0x600 [ 626.431448][ T8478] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 626.431545][ T8478] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 626.431656][ T8478] batadv_neigh_ifinfo_new+0x95/0x300 [ 626.431788][ T8478] batadv_iv_ogm_process_per_outif+0x52e/0x2790 [ 626.431949][ T8478] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 626.432047][ T8478] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 626.432162][ T8478] ? netdev_lower_get_next_private_rcu+0x9f/0x100 [ 626.432234][ T8478] batadv_iv_ogm_receive+0x11c7/0x1740 [ 626.432364][ T8478] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 626.432491][ T8478] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 626.432596][ T8478] ? rcu_is_watching+0x16/0xb0 [ 626.432670][ T8478] ? __alloc_skb+0x27a/0x7a0 [ 626.432735][ T8478] ? trace_kmem_cache_alloc+0x29/0xe0 [ 626.432844][ T8478] batadv_batman_skb_recv+0x4b6/0x870 [ 626.432919][ T8478] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 626.433002][ T8478] ? netif_receive_skb+0x102/0xbf0 [ 626.433080][ T8478] ? netif_receive_skb+0x102/0xbf0 [ 626.433145][ T8478] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 626.433232][ T8478] netif_receive_skb+0x4af/0xbf0 [ 626.433346][ T8478] ? __pfx_netif_receive_skb+0x10/0x10 [ 626.433454][ T8478] ? tun_rx_batched+0x185/0x790 [ 626.433529][ T8478] tun_rx_batched+0x1de/0x790 [ 626.433607][ T8478] ? __pfx_tun_rx_batched+0x10/0x10 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 626.433671][ T8478] ? lock_acquire+0x115/0x350 [ 626.433765][ T8478] ? tun_get_user+0x23ba/0x44d0 [ 626.433828][ T8478] ? __local_bh_enable_ip+0xd6/0x140 [ 626.433904][ T8478] ? tun_get_user+0x27b0/0x44d0 [ 626.433975][ T8478] tun_get_user+0x2be0/0x44d0 [ 626.434082][ T8478] ? tun_get_user+0x27b0/0x44d0 [ 626.434160][ T8478] ? aa_file_perm+0x4ed/0x15f0 [ 626.434251][ T8478] ? __pfx_tun_get_user+0x10/0x10 [ 626.434317][ T8478] ? __lock_acquire+0x747/0x2de0 [ 626.434390][ T8478] ? kstrtoull+0x137/0x1d0 executing program [ 626.434500][ T8478] ? ref_tracker_alloc+0x341/0x4b0 [ 626.434566][ T8478] ? lock_acquire+0x115/0x350 [ 626.434639][ T8478] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 626.434748][ T8478] ? lock_acquire+0x115/0x350 [ 626.434804][ T8478] ? tun_get+0x1c/0x2f0 [ 626.434887][ T8478] ? tun_get+0x1c/0x2f0 [ 626.434942][ T8478] ? tun_get+0x1c/0x2f0 [ 626.435018][ T8478] tun_chr_write_iter+0x113/0x200 [ 626.435091][ T8478] vfs_write+0x612/0xba0 [ 626.435237][ T8478] ? __pfx_vfs_write+0x10/0x10 [ 626.435355][ T8478] ? do_sys_openat2+0x14e/0x200 [ 626.435456][ T8478] ksys_write+0x150/0x270 [ 626.435552][ T8478] ? __pfx_ksys_write+0x10/0x10 [ 626.435661][ T8478] __do_fast_syscall_32+0x27a/0x6a0 [ 626.435745][ T8478] ? do_fast_syscall_32+0x33/0x70 [ 626.435811][ T8478] ? irqentry_exit+0x10f/0x910 [ 626.435864][ T8478] ? trace_irq_disable+0x3b/0x140 [ 626.435957][ T8478] do_fast_syscall_32+0x33/0x70 [ 626.436038][ T8478] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 626.436118][ T8478] RIP: 0023:0xf7d7f0ec [ 626.436181][ T8478] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 626.436227][ T8478] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 626.436293][ T8478] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 626.436335][ T8478] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 626.436376][ T8478] RBP: 00000000000000df R08: 0000000000000000 R09: 0000000000000000 [ 626.436410][ T8478] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 626.436443][ T8478] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 626.436532][ T8478] [ 626.445150][ T8478] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 626.526998][ T8478] batman_adv: batadv0: Removing interface: syzkaller0 [ 626.796804][ T8479] batman_adv: batadv0: Adding interface: syzkaller0 [ 626.796858][ T8479] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 626.796946][ T8479] batman_adv: batadv0: Interface activated: syzkaller0 [ 626.802816][ T8479] FAULT_INJECTION: forcing a failure. [ 626.802816][ T8479] name failslab, interval 1, probability 0, space 0, times 0 [ 626.802912][ T8479] CPU: 1 UID: 0 PID: 8479 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 626.802983][ T8479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 626.803018][ T8479] Call Trace: [ 626.803050][ T8479] [ 626.803081][ T8479] dump_stack_lvl+0xe8/0x150 [ 626.803181][ T8479] should_fail_ex+0x410/0x560 [ 626.803271][ T8479] should_failslab+0xa8/0x100 [ 626.803357][ T8479] __kmalloc_cache_noprof+0xa3/0x600 [ 626.803424][ T8479] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 626.803514][ T8479] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 626.803630][ T8479] batadv_neigh_ifinfo_new+0x95/0x300 [ 626.803731][ T8479] batadv_iv_ogm_process_per_outif+0x52e/0x2790 [ 626.803899][ T8479] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 626.804015][ T8479] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 626.804154][ T8479] ? netdev_lower_get_next_private_rcu+0x9f/0x100 [ 626.804239][ T8479] batadv_iv_ogm_receive+0x11c7/0x1740 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 626.804370][ T8479] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 626.804499][ T8479] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 626.804599][ T8479] ? rcu_is_watching+0x16/0xb0 [ 626.804674][ T8479] ? __alloc_skb+0x27a/0x7a0 [ 626.804730][ T8479] ? trace_kmem_cache_alloc+0x29/0xe0 [ 626.804840][ T8479] batadv_batman_skb_recv+0x4b6/0x870 [ 626.804917][ T8479] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 626.805004][ T8479] ? netif_receive_skb+0x102/0xbf0 [ 626.805103][ T8479] ? netif_receive_skb+0x102/0xbf0 executing program [ 626.805192][ T8479] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 626.805258][ T8479] netif_receive_skb+0x4af/0xbf0 [ 626.805368][ T8479] ? __pfx_netif_receive_skb+0x10/0x10 [ 626.805484][ T8479] ? tun_rx_batched+0x185/0x790 [ 626.805554][ T8479] tun_rx_batched+0x1de/0x790 [ 626.805646][ T8479] ? __pfx_tun_rx_batched+0x10/0x10 [ 626.805712][ T8479] ? lock_acquire+0x115/0x350 [ 626.805798][ T8479] ? tun_get_user+0x23ba/0x44d0 [ 626.805854][ T8479] ? __local_bh_enable_ip+0xd6/0x140 [ 626.805938][ T8479] ? tun_get_user+0x27b0/0x44d0 [ 626.806003][ T8479] tun_get_user+0x2be0/0x44d0 [ 626.806112][ T8479] ? tun_get_user+0x27b0/0x44d0 [ 626.806200][ T8479] ? aa_file_perm+0x4ed/0x15f0 [ 626.806272][ T8479] ? __pfx_tun_get_user+0x10/0x10 [ 626.806346][ T8479] ? __lock_acquire+0x747/0x2de0 [ 626.806413][ T8479] ? kstrtoull+0x137/0x1d0 [ 626.806534][ T8479] ? ref_tracker_alloc+0x341/0x4b0 [ 626.806600][ T8479] ? lock_acquire+0x115/0x350 [ 626.806658][ T8479] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 626.806737][ T8479] ? lock_acquire+0x115/0x350 [ 626.806800][ T8479] ? tun_get+0x1c/0x2f0 [ 626.806875][ T8479] ? tun_get+0x1c/0x2f0 [ 626.806940][ T8479] ? tun_get+0x1c/0x2f0 [ 626.807032][ T8479] tun_chr_write_iter+0x113/0x200 [ 626.807115][ T8479] vfs_write+0x612/0xba0 [ 626.807235][ T8479] ? __pfx_vfs_write+0x10/0x10 [ 626.807346][ T8479] ? do_sys_openat2+0x14e/0x200 [ 626.807444][ T8479] ksys_write+0x150/0x270 [ 626.807544][ T8479] ? __pfx_ksys_write+0x10/0x10 [ 626.807662][ T8479] __do_fast_syscall_32+0x27a/0x6a0 [ 626.807738][ T8479] ? do_fast_syscall_32+0x33/0x70 [ 626.807807][ T8479] ? irqentry_exit+0x10f/0x910 [ 626.807862][ T8479] ? trace_irq_disable+0x3b/0x140 [ 626.807928][ T8479] do_fast_syscall_32+0x33/0x70 [ 626.807996][ T8479] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 626.808082][ T8479] RIP: 0023:0xf7d7f0ec [ 626.808137][ T8479] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 626.808192][ T8479] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 626.808258][ T8479] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 626.808300][ T8479] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 626.808341][ T8479] RBP: 00000000000000e0 R08: 0000000000000000 R09: 0000000000000000 [ 626.808375][ T8479] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 626.808409][ T8479] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 626.808496][ T8479] [ 626.816489][ T8479] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 626.910987][ T8479] batman_adv: batadv0: Removing interface: syzkaller0 [ 627.184264][ T8480] batman_adv: batadv0: Adding interface: syzkaller0 [ 627.184318][ T8480] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 627.184437][ T8480] batman_adv: batadv0: Interface activated: syzkaller0 [ 627.189848][ T8480] FAULT_INJECTION: forcing a failure. [ 627.189848][ T8480] name failslab, interval 1, probability 0, space 0, times 0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed executing program [ 627.190004][ T8480] CPU: 1 UID: 0 PID: 8480 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 627.190071][ T8480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 627.190114][ T8480] Call Trace: [ 627.190138][ T8480] [ 627.190162][ T8480] dump_stack_lvl+0xe8/0x150 [ 627.190275][ T8480] should_fail_ex+0x410/0x560 [ 627.190353][ T8480] should_failslab+0xa8/0x100 [ 627.190437][ T8480] __kmalloc_cache_noprof+0xa3/0x600 [ 627.190494][ T8480] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 627.190591][ T8480] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 627.190711][ T8480] batadv_neigh_ifinfo_new+0x95/0x300 [ 627.190812][ T8480] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 627.190983][ T8480] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 627.191104][ T8480] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 627.191206][ T8480] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 627.191314][ T8480] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 627.191399][ T8480] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 627.191498][ T8480] batadv_iv_ogm_receive+0xc13/0x1740 [ 627.191629][ T8480] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 627.191757][ T8480] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 627.191847][ T8480] ? rcu_is_watching+0x16/0xb0 [ 627.191922][ T8480] ? __alloc_skb+0x27a/0x7a0 [ 627.191986][ T8480] ? trace_kmem_cache_alloc+0x29/0xe0 [ 627.192088][ T8480] batadv_batman_skb_recv+0x4b6/0x870 [ 627.192171][ T8480] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 627.192228][ T8480] ? netif_receive_skb+0x102/0xbf0 [ 627.192315][ T8480] ? netif_receive_skb+0x102/0xbf0 [ 627.192404][ T8480] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 627.192477][ T8480] netif_receive_skb+0x4af/0xbf0 [ 627.192626][ T8480] ? __pfx_netif_receive_skb+0x10/0x10 [ 627.192735][ T8480] ? tun_rx_batched+0x185/0x790 [ 627.192802][ T8480] tun_rx_batched+0x1de/0x790 [ 627.192885][ T8480] ? __pfx_tun_rx_batched+0x10/0x10 [ 627.192948][ T8480] ? lock_acquire+0x115/0x350 [ 627.193033][ T8480] ? tun_get_user+0x23ba/0x44d0 [ 627.193089][ T8480] ? __local_bh_enable_ip+0xd6/0x140 [ 627.193165][ T8480] ? tun_get_user+0x27b0/0x44d0 [ 627.193226][ T8480] tun_get_user+0x2be0/0x44d0 [ 627.193325][ T8480] ? tun_get_user+0x27b0/0x44d0 [ 627.193401][ T8480] ? aa_file_perm+0x4ed/0x15f0 [ 627.193477][ T8480] ? __pfx_tun_get_user+0x10/0x10 [ 627.193542][ T8480] ? __lock_acquire+0x747/0x2de0 [ 627.193609][ T8480] ? kstrtoull+0x137/0x1d0 [ 627.193797][ T8480] ? ref_tracker_alloc+0x341/0x4b0 [ 627.193881][ T8480] ? lock_acquire+0x115/0x350 [ 627.193968][ T8480] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 627.194056][ T8480] ? lock_acquire+0x115/0x350 [ 627.194138][ T8480] ? tun_get+0x1c/0x2f0 [ 627.194220][ T8480] ? tun_get+0x1c/0x2f0 [ 627.194283][ T8480] ? tun_get+0x1c/0x2f0 [ 627.194359][ T8480] tun_chr_write_iter+0x113/0x200 [ 627.194427][ T8480] vfs_write+0x612/0xba0 [ 627.194551][ T8480] ? __pfx_vfs_write+0x10/0x10 [ 627.194671][ T8480] ? do_sys_openat2+0x14e/0x200 [ 627.194778][ T8480] ksys_write+0x150/0x270 [ 627.194874][ T8480] ? __pfx_ksys_write+0x10/0x10 [ 627.194984][ T8480] __do_fast_syscall_32+0x27a/0x6a0 [ 627.195059][ T8480] ? do_fast_syscall_32+0x33/0x70 [ 627.195134][ T8480] ? irqentry_exit+0x10f/0x910 [ 627.195190][ T8480] ? trace_irq_disable+0x3b/0x140 [ 627.195365][ T8480] do_fast_syscall_32+0x33/0x70 [ 627.195440][ T8480] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 627.195532][ T8480] RIP: 0023:0xf7d7f0ec the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed executing program [ 627.195620][ T8480] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 627.195667][ T8480] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 627.195741][ T8480] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 627.195786][ T8480] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 627.195828][ T8480] RBP: 00000000000000e1 R08: 0000000000000000 R09: 0000000000000000 [ 627.195862][ T8480] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 627.195895][ T8480] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 627.195981][ T8480] [ 627.245504][ T8480] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 627.305886][ T8480] batman_adv: batadv0: Removing interface: syzkaller0 [ 627.562931][ T8481] batman_adv: batadv0: Adding interface: syzkaller0 [ 627.562985][ T8481] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 627.563066][ T8481] batman_adv: batadv0: Interface activated: syzkaller0 [ 627.567910][ T8481] FAULT_INJECTION: forcing a failure. [ 627.567910][ T8481] name failslab, interval 1, probability 0, space 0, times 0 [ 627.568213][ T8481] CPU: 1 UID: 0 PID: 8481 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 627.568237][ T8481] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 627.568250][ T8481] Call Trace: [ 627.568260][ T8481] [ 627.568270][ T8481] dump_stack_lvl+0xe8/0x150 [ 627.568383][ T8481] should_fail_ex+0x410/0x560 [ 627.568465][ T8481] should_failslab+0xa8/0x100 [ 627.568553][ T8481] __kmalloc_cache_noprof+0xa3/0x600 [ 627.568620][ T8481] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 627.568738][ T8481] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 627.568865][ T8481] batadv_neigh_ifinfo_new+0x95/0x300 [ 627.568976][ T8481] batadv_iv_ogm_process_per_outif+0x52e/0x2790 [ 627.569141][ T8481] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 627.569233][ T8481] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 627.569345][ T8481] ? netdev_lower_get_next_private_rcu+0x9f/0x100 [ 627.569431][ T8481] batadv_iv_ogm_receive+0x11c7/0x1740 [ 627.569561][ T8481] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 627.569703][ T8481] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 627.569786][ T8481] ? rcu_is_watching+0x16/0xb0 [ 627.569861][ T8481] ? __alloc_skb+0x27a/0x7a0 [ 627.569924][ T8481] ? trace_kmem_cache_alloc+0x29/0xe0 [ 627.570034][ T8481] batadv_batman_skb_recv+0x4b6/0x870 [ 627.570113][ T8481] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 627.570186][ T8481] ? netif_receive_skb+0x102/0xbf0 [ 627.570268][ T8481] ? netif_receive_skb+0x102/0xbf0 [ 627.570339][ T8481] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 627.570363][ T8481] netif_receive_skb+0x4af/0xbf0 [ 627.570403][ T8481] ? __pfx_netif_receive_skb+0x10/0x10 [ 627.570525][ T8481] ? tun_rx_batched+0x185/0x790 [ 627.570598][ T8481] tun_rx_batched+0x1de/0x790 [ 627.570702][ T8481] ? __pfx_tun_rx_batched+0x10/0x10 [ 627.570768][ T8481] ? lock_acquire+0x115/0x350 [ 627.570853][ T8481] ? tun_get_user+0x23ba/0x44d0 [ 627.570910][ T8481] ? __local_bh_enable_ip+0xd6/0x140 [ 627.570992][ T8481] ? tun_get_user+0x27b0/0x44d0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 627.571059][ T8481] tun_get_user+0x2be0/0x44d0 [ 627.571187][ T8481] ? tun_get_user+0x27b0/0x44d0 [ 627.571265][ T8481] ? aa_file_perm+0x4ed/0x15f0 [ 627.571350][ T8481] ? __pfx_tun_get_user+0x10/0x10 [ 627.571432][ T8481] ? __lock_acquire+0x747/0x2de0 [ 627.571499][ T8481] ? kstrtoull+0x137/0x1d0 [ 627.571611][ T8481] ? ref_tracker_alloc+0x341/0x4b0 [ 627.571685][ T8481] ? lock_acquire+0x115/0x350 [ 627.571750][ T8481] ? __pfx_ref_tracker_alloc+0x10/0x10 executing program [ 627.571836][ T8481] ? lock_acquire+0x115/0x350 [ 627.571900][ T8481] ? tun_get+0x1c/0x2f0 [ 627.571979][ T8481] ? tun_get+0x1c/0x2f0 [ 627.572036][ T8481] ? tun_get+0x1c/0x2f0 [ 627.572120][ T8481] tun_chr_write_iter+0x113/0x200 [ 627.572210][ T8481] vfs_write+0x612/0xba0 [ 627.572337][ T8481] ? __pfx_vfs_write+0x10/0x10 [ 627.572458][ T8481] ? do_sys_openat2+0x14e/0x200 [ 627.572568][ T8481] ksys_write+0x150/0x270 [ 627.572658][ T8481] ? __pfx_ksys_write+0x10/0x10 [ 627.572777][ T8481] __do_fast_syscall_32+0x27a/0x6a0 [ 627.572853][ T8481] ? do_fast_syscall_32+0x33/0x70 [ 627.572919][ T8481] ? irqentry_exit+0x10f/0x910 [ 627.572981][ T8481] ? trace_irq_disable+0x3b/0x140 [ 627.573048][ T8481] do_fast_syscall_32+0x33/0x70 [ 627.573122][ T8481] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 627.573196][ T8481] RIP: 0023:0xf7d7f0ec [ 627.573269][ T8481] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 627.573316][ T8481] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 627.573382][ T8481] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 627.573425][ T8481] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 627.573460][ T8481] RBP: 00000000000000e2 R08: 0000000000000000 R09: 0000000000000000 [ 627.573501][ T8481] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 627.573535][ T8481] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 627.573614][ T8481] [ 627.615542][ T8481] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 627.686175][ T8481] batman_adv: batadv0: Removing interface: syzkaller0 [ 627.971625][ T8482] batman_adv: batadv0: Adding interface: syzkaller0 [ 627.971679][ T8482] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 627.971765][ T8482] batman_adv: batadv0: Interface activated: syzkaller0 [ 627.976015][ T8482] FAULT_INJECTION: forcing a failure. [ 627.976015][ T8482] name failslab, interval 1, probability 0, space 0, times 0 [ 627.976123][ T8482] CPU: 1 UID: 0 PID: 8482 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 627.976191][ T8482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 627.976232][ T8482] Call Trace: [ 627.976257][ T8482] [ 627.976288][ T8482] dump_stack_lvl+0xe8/0x150 [ 627.976390][ T8482] should_fail_ex+0x410/0x560 [ 627.976468][ T8482] should_failslab+0xa8/0x100 [ 627.976548][ T8482] __kmalloc_cache_noprof+0xa3/0x600 [ 627.976601][ T8482] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 627.976722][ T8482] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 627.976850][ T8482] batadv_neigh_ifinfo_new+0x95/0x300 [ 627.976965][ T8482] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 627.977322][ T8482] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 627.977432][ T8482] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 627.977538][ T8482] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 627.977632][ T8482] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 627.977703][ T8482] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 627.977830][ T8482] batadv_iv_ogm_receive+0xc13/0x1740 [ 627.977959][ T8482] ? batadv_iv_ogm_receive+0x4b1/0x1740 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 627.978098][ T8482] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 627.978204][ T8482] ? rcu_is_watching+0x16/0xb0 [ 627.978289][ T8482] ? __alloc_skb+0x27a/0x7a0 [ 627.978355][ T8482] ? trace_kmem_cache_alloc+0x29/0xe0 [ 627.978465][ T8482] batadv_batman_skb_recv+0x4b6/0x870 [ 627.978555][ T8482] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 627.978635][ T8482] ? netif_receive_skb+0x102/0xbf0 [ 627.978722][ T8482] ? netif_receive_skb+0x102/0xbf0 [ 627.978802][ T8482] ? __pfx_batadv_batman_skb_recv+0x10/0x10 executing program [ 627.978876][ T8482] netif_receive_skb+0x4af/0xbf0 [ 627.978986][ T8482] ? __pfx_netif_receive_skb+0x10/0x10 [ 627.979098][ T8482] ? tun_rx_batched+0x185/0x790 [ 627.979188][ T8482] tun_rx_batched+0x1de/0x790 [ 627.979279][ T8482] ? __pfx_tun_rx_batched+0x10/0x10 [ 627.979345][ T8482] ? lock_acquire+0x115/0x350 [ 627.979467][ T8482] ? tun_get_user+0x23ba/0x44d0 [ 627.979525][ T8482] ? __local_bh_enable_ip+0xd6/0x140 [ 627.979631][ T8482] ? tun_get_user+0x27b0/0x44d0 [ 627.979706][ T8482] tun_get_user+0x2be0/0x44d0 [ 627.979810][ T8482] ? tun_get_user+0x27b0/0x44d0 [ 627.979886][ T8482] ? aa_file_perm+0x4ed/0x15f0 [ 627.979965][ T8482] ? __pfx_tun_get_user+0x10/0x10 [ 627.980033][ T8482] ? __lock_acquire+0x747/0x2de0 [ 627.980109][ T8482] ? kstrtoull+0x137/0x1d0 [ 627.980209][ T8482] ? ref_tracker_alloc+0x341/0x4b0 [ 627.980284][ T8482] ? lock_acquire+0x115/0x350 [ 627.980349][ T8482] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 627.980437][ T8482] ? lock_acquire+0x115/0x350 [ 627.980496][ T8482] ? tun_get+0x1c/0x2f0 [ 627.980577][ T8482] ? tun_get+0x1c/0x2f0 [ 627.980642][ T8482] ? tun_get+0x1c/0x2f0 [ 627.980725][ T8482] tun_chr_write_iter+0x113/0x200 [ 627.980817][ T8482] vfs_write+0x612/0xba0 [ 627.980927][ T8482] ? __pfx_vfs_write+0x10/0x10 [ 627.981054][ T8482] ? do_sys_openat2+0x14e/0x200 [ 627.981153][ T8482] ksys_write+0x150/0x270 [ 627.981243][ T8482] ? __pfx_ksys_write+0x10/0x10 [ 627.981362][ T8482] __do_fast_syscall_32+0x27a/0x6a0 [ 627.981440][ T8482] ? do_fast_syscall_32+0x33/0x70 [ 627.981507][ T8482] ? irqentry_exit+0x10f/0x910 [ 627.981573][ T8482] ? trace_irq_disable+0x3b/0x140 [ 627.981644][ T8482] do_fast_syscall_32+0x33/0x70 [ 627.981720][ T8482] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 627.981789][ T8482] RIP: 0023:0xf7d7f0ec [ 627.981850][ T8482] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 627.981903][ T8482] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 627.981971][ T8482] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 627.982014][ T8482] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 627.982070][ T8482] RBP: 00000000000000e3 R08: 0000000000000000 R09: 0000000000000000 [ 627.982082][ T8482] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 627.982094][ T8482] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 627.982123][ T8482] [ 627.992658][ T8482] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 628.097566][ T8482] batman_adv: batadv0: Removing interface: syzkaller0 [ 628.387576][ T8483] batman_adv: batadv0: Adding interface: syzkaller0 [ 628.387632][ T8483] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 628.387722][ T8483] batman_adv: batadv0: Interface activated: syzkaller0 [ 628.394579][ T8483] FAULT_INJECTION: forcing a failure. [ 628.394579][ T8483] name failslab, interval 1, probability 0, space 0, times 0 [ 628.394684][ T8483] CPU: 1 UID: 0 PID: 8483 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 628.394752][ T8483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 628.394795][ T8483] Call Trace: the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 628.394819][ T8483] [ 628.394850][ T8483] dump_stack_lvl+0xe8/0x150 [ 628.394953][ T8483] should_fail_ex+0x410/0x560 [ 628.395044][ T8483] should_failslab+0xa8/0x100 [ 628.395125][ T8483] __kmalloc_cache_noprof+0xa3/0x600 [ 628.395195][ T8483] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 628.395296][ T8483] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 628.395421][ T8483] batadv_neigh_ifinfo_new+0x95/0x300 [ 628.395532][ T8483] batadv_iv_ogm_process_per_outif+0x52e/0x2790 executing program [ 628.395696][ T8483] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 628.395797][ T8483] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 628.395942][ T8483] ? netdev_lower_get_next_private_rcu+0x9f/0x100 [ 628.396019][ T8483] batadv_iv_ogm_receive+0x11c7/0x1740 [ 628.396151][ T8483] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 628.396286][ T8483] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 628.396387][ T8483] ? rcu_is_watching+0x16/0xb0 [ 628.396449][ T8483] ? __alloc_skb+0x27a/0x7a0 [ 628.396516][ T8483] ? trace_kmem_cache_alloc+0x29/0xe0 [ 628.396629][ T8483] batadv_batman_skb_recv+0x4b6/0x870 [ 628.396791][ T8483] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 628.396881][ T8483] ? netif_receive_skb+0x102/0xbf0 [ 628.396964][ T8483] ? netif_receive_skb+0x102/0xbf0 [ 628.397056][ T8483] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 628.397132][ T8483] netif_receive_skb+0x4af/0xbf0 [ 628.397237][ T8483] ? __pfx_netif_receive_skb+0x10/0x10 [ 628.397349][ T8483] ? tun_rx_batched+0x185/0x790 [ 628.397432][ T8483] tun_rx_batched+0x1de/0x790 [ 628.397514][ T8483] ? __pfx_tun_rx_batched+0x10/0x10 [ 628.397581][ T8483] ? lock_acquire+0x115/0x350 [ 628.397672][ T8483] ? tun_get_user+0x23ba/0x44d0 [ 628.397744][ T8483] ? __local_bh_enable_ip+0xd6/0x140 [ 628.397837][ T8483] ? tun_get_user+0x27b0/0x44d0 [ 628.397928][ T8483] tun_get_user+0x2be0/0x44d0 [ 628.398032][ T8483] ? tun_get_user+0x27b0/0x44d0 [ 628.398119][ T8483] ? aa_file_perm+0x4ed/0x15f0 [ 628.398199][ T8483] ? __pfx_tun_get_user+0x10/0x10 [ 628.398270][ T8483] ? __lock_acquire+0x747/0x2de0 [ 628.398341][ T8483] ? kstrtoull+0x137/0x1d0 [ 628.398468][ T8483] ? ref_tracker_alloc+0x341/0x4b0 [ 628.398538][ T8483] ? lock_acquire+0x115/0x350 [ 628.398598][ T8483] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 628.398685][ T8483] ? lock_acquire+0x115/0x350 [ 628.398768][ T8483] ? tun_get+0x1c/0x2f0 [ 628.398849][ T8483] ? tun_get+0x1c/0x2f0 [ 628.398907][ T8483] ? tun_get+0x1c/0x2f0 [ 628.398987][ T8483] tun_chr_write_iter+0x113/0x200 [ 628.399064][ T8483] vfs_write+0x612/0xba0 [ 628.399178][ T8483] ? __pfx_vfs_write+0x10/0x10 [ 628.399298][ T8483] ? do_sys_openat2+0x14e/0x200 [ 628.399416][ T8483] ksys_write+0x150/0x270 [ 628.399525][ T8483] ? __pfx_ksys_write+0x10/0x10 [ 628.399639][ T8483] __do_fast_syscall_32+0x27a/0x6a0 [ 628.399716][ T8483] ? do_fast_syscall_32+0x33/0x70 [ 628.399794][ T8483] ? irqentry_exit+0x10f/0x910 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 628.399852][ T8483] ? trace_irq_disable+0x3b/0x140 [ 628.399940][ T8483] do_fast_syscall_32+0x33/0x70 [ 628.400010][ T8483] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 628.400080][ T8483] RIP: 0023:0xf7d7f0ec [ 628.400145][ T8483] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 executing program [ 628.400191][ T8483] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 628.400257][ T8483] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 628.400302][ T8483] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 628.400345][ T8483] RBP: 00000000000000e4 R08: 0000000000000000 R09: 0000000000000000 [ 628.400429][ T8483] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 628.400458][ T8483] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 628.400549][ T8483] [ 628.413833][ T8483] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 628.495734][ T8483] batman_adv: batadv0: Removing interface: syzkaller0 [ 628.767071][ T8484] batman_adv: batadv0: Adding interface: syzkaller0 [ 628.767126][ T8484] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 628.767223][ T8484] batman_adv: batadv0: Interface activated: syzkaller0 [ 628.773027][ T8484] FAULT_INJECTION: forcing a failure. [ 628.773027][ T8484] name failslab, interval 1, probability 0, space 0, times 0 [ 628.773062][ T8484] CPU: 1 UID: 0 PID: 8484 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 628.773088][ T8484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 628.773101][ T8484] Call Trace: [ 628.773111][ T8484] [ 628.773130][ T8484] dump_stack_lvl+0xe8/0x150 [ 628.773227][ T8484] should_fail_ex+0x410/0x560 [ 628.773319][ T8484] should_failslab+0xa8/0x100 [ 628.773403][ T8484] __kmalloc_cache_noprof+0xa3/0x600 [ 628.773473][ T8484] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 628.773562][ T8484] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 628.773674][ T8484] batadv_neigh_ifinfo_new+0x95/0x300 [ 628.773779][ T8484] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 628.773931][ T8484] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 628.774046][ T8484] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 628.774145][ T8484] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 628.774252][ T8484] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 628.774332][ T8484] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 628.774418][ T8484] batadv_iv_ogm_receive+0xc13/0x1740 [ 628.774548][ T8484] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 628.774696][ T8484] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 628.774801][ T8484] ? rcu_is_watching+0x16/0xb0 [ 628.774870][ T8484] ? __alloc_skb+0x27a/0x7a0 [ 628.774935][ T8484] ? trace_kmem_cache_alloc+0x29/0xe0 [ 628.775044][ T8484] batadv_batman_skb_recv+0x4b6/0x870 [ 628.775121][ T8484] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 628.775200][ T8484] ? netif_receive_skb+0x102/0xbf0 [ 628.775289][ T8484] ? netif_receive_skb+0x102/0xbf0 [ 628.775375][ T8484] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 628.775436][ T8484] netif_receive_skb+0x4af/0xbf0 [ 628.775536][ T8484] ? __pfx_netif_receive_skb+0x10/0x10 [ 628.775644][ T8484] ? tun_rx_batched+0x185/0x790 [ 628.775720][ T8484] tun_rx_batched+0x1de/0x790 [ 628.775802][ T8484] ? __pfx_tun_rx_batched+0x10/0x10 [ 628.775867][ T8484] ? lock_acquire+0x115/0x350 [ 628.776105][ T8484] ? tun_get_user+0x23ba/0x44d0 [ 628.776171][ T8484] ? __local_bh_enable_ip+0xd6/0x140 [ 628.776249][ T8484] ? tun_get_user+0x27b0/0x44d0 [ 628.776316][ T8484] tun_get_user+0x2be0/0x44d0 [ 628.776410][ T8484] ? tun_get_user+0x27b0/0x44d0 [ 628.776494][ T8484] ? aa_file_perm+0x4ed/0x15f0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 628.776570][ T8484] ? __pfx_tun_get_user+0x10/0x10 [ 628.776656][ T8484] ? __lock_acquire+0x747/0x2de0 [ 628.776734][ T8484] ? kstrtoull+0x137/0x1d0 [ 628.776842][ T8484] ? ref_tracker_alloc+0x341/0x4b0 [ 628.776918][ T8484] ? lock_acquire+0x115/0x350 [ 628.776990][ T8484] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 628.777067][ T8484] ? lock_acquire+0x115/0x350 [ 628.777124][ T8484] ? tun_get+0x1c/0x2f0 [ 628.777202][ T8484] ? tun_get+0x1c/0x2f0 [ 628.777259][ T8484] ? tun_get+0x1c/0x2f0 executing program [ 628.777335][ T8484] tun_chr_write_iter+0x113/0x200 [ 628.777414][ T8484] vfs_write+0x612/0xba0 [ 628.777551][ T8484] ? __pfx_vfs_write+0x10/0x10 [ 628.777662][ T8484] ? do_sys_openat2+0x14e/0x200 [ 628.777761][ T8484] ksys_write+0x150/0x270 [ 628.777856][ T8484] ? __pfx_ksys_write+0x10/0x10 [ 628.777977][ T8484] __do_fast_syscall_32+0x27a/0x6a0 [ 628.778055][ T8484] ? do_fast_syscall_32+0x33/0x70 [ 628.778120][ T8484] ? irqentry_exit+0x10f/0x910 [ 628.778177][ T8484] ? trace_irq_disable+0x3b/0x140 [ 628.778251][ T8484] do_fast_syscall_32+0x33/0x70 [ 628.778318][ T8484] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 628.778421][ T8484] RIP: 0023:0xf7d7f0ec [ 628.778478][ T8484] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 628.778531][ T8484] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 628.778598][ T8484] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 628.778639][ T8484] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 628.778675][ T8484] RBP: 00000000000000e5 R08: 0000000000000000 R09: 0000000000000000 [ 628.778707][ T8484] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 628.778748][ T8484] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 628.778833][ T8484] [ 628.824138][ T8484] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 628.875049][ T8484] batman_adv: batadv0: Removing interface: syzkaller0 [ 629.035483][ T8485] batman_adv: batadv0: Adding interface: syzkaller0 [ 629.035538][ T8485] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 629.035627][ T8485] batman_adv: batadv0: Interface activated: syzkaller0 [ 629.043403][ T8485] FAULT_INJECTION: forcing a failure. [ 629.043403][ T8485] name failslab, interval 1, probability 0, space 0, times 0 [ 629.043572][ T8485] CPU: 1 UID: 0 PID: 8485 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 629.043638][ T8485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 629.043679][ T8485] Call Trace: [ 629.043709][ T8485] [ 629.043732][ T8485] dump_stack_lvl+0xe8/0x150 [ 629.043838][ T8485] should_fail_ex+0x410/0x560 [ 629.043915][ T8485] should_failslab+0xa8/0x100 [ 629.044087][ T8485] __kmalloc_cache_noprof+0xa3/0x600 [ 629.044153][ T8485] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 629.044255][ T8485] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 629.044365][ T8485] batadv_neigh_ifinfo_new+0x95/0x300 [ 629.044508][ T8485] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 629.044641][ T8485] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 629.044748][ T8485] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 629.044867][ T8485] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 629.044984][ T8485] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 629.045063][ T8485] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 629.045172][ T8485] batadv_iv_ogm_receive+0xc13/0x1740 [ 629.045300][ T8485] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 629.045452][ T8485] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 629.045541][ T8485] ? rcu_is_watching+0x16/0xb0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 629.045616][ T8485] ? __alloc_skb+0x27a/0x7a0 [ 629.045675][ T8485] ? trace_kmem_cache_alloc+0x29/0xe0 [ 629.045785][ T8485] batadv_batman_skb_recv+0x4b6/0x870 [ 629.045868][ T8485] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 629.045941][ T8485] ? netif_receive_skb+0x102/0xbf0 [ 629.046030][ T8485] ? netif_receive_skb+0x102/0xbf0 [ 629.046120][ T8485] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 629.046187][ T8485] netif_receive_skb+0x4af/0xbf0 [ 629.046300][ T8485] ? __pfx_netif_receive_skb+0x10/0x10 executing program [ 629.046404][ T8485] ? tun_rx_batched+0x185/0x790 [ 629.046488][ T8485] tun_rx_batched+0x1de/0x790 [ 629.046571][ T8485] ? __pfx_tun_rx_batched+0x10/0x10 [ 629.046636][ T8485] ? lock_acquire+0x115/0x350 [ 629.046721][ T8485] ? tun_get_user+0x23ba/0x44d0 [ 629.046794][ T8485] ? __local_bh_enable_ip+0xd6/0x140 [ 629.046873][ T8485] ? tun_get_user+0x27b0/0x44d0 [ 629.046943][ T8485] tun_get_user+0x2be0/0x44d0 [ 629.047043][ T8485] ? tun_get_user+0x27b0/0x44d0 [ 629.047115][ T8485] ? aa_file_perm+0x4ed/0x15f0 [ 629.047187][ T8485] ? __pfx_tun_get_user+0x10/0x10 [ 629.047240][ T8485] ? __lock_acquire+0x747/0x2de0 [ 629.047310][ T8485] ? kstrtoull+0x137/0x1d0 [ 629.047441][ T8485] ? ref_tracker_alloc+0x341/0x4b0 [ 629.047516][ T8485] ? lock_acquire+0x115/0x350 [ 629.047580][ T8485] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 629.047643][ T8485] ? lock_acquire+0x115/0x350 [ 629.047708][ T8485] ? tun_get+0x1c/0x2f0 [ 629.047785][ T8485] ? tun_get+0x1c/0x2f0 [ 629.047841][ T8485] ? tun_get+0x1c/0x2f0 [ 629.047920][ T8485] tun_chr_write_iter+0x113/0x200 [ 629.047984][ T8485] vfs_write+0x612/0xba0 [ 629.048094][ T8485] ? __pfx_vfs_write+0x10/0x10 [ 629.048225][ T8485] ? do_sys_openat2+0x14e/0x200 [ 629.048332][ T8485] ksys_write+0x150/0x270 [ 629.048423][ T8485] ? __pfx_ksys_write+0x10/0x10 [ 629.048552][ T8485] __do_fast_syscall_32+0x27a/0x6a0 [ 629.048620][ T8485] ? do_fast_syscall_32+0x33/0x70 [ 629.048695][ T8485] ? irqentry_exit+0x10f/0x910 [ 629.048750][ T8485] ? trace_irq_disable+0x3b/0x140 [ 629.048825][ T8485] do_fast_syscall_32+0x33/0x70 [ 629.048899][ T8485] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 629.048961][ T8485] RIP: 0023:0xf7d7f0ec [ 629.049023][ T8485] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 629.049084][ T8485] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 629.049151][ T8485] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 629.049194][ T8485] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 629.049235][ T8485] RBP: 00000000000000e6 R08: 0000000000000000 R09: 0000000000000000 [ 629.049268][ T8485] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 629.049301][ T8485] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 629.049388][ T8485] [ 629.084978][ T8485] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 629.163306][ T8485] batman_adv: batadv0: Removing interface: syzkaller0 [ 629.435264][ T8486] batman_adv: batadv0: Adding interface: syzkaller0 [ 629.435317][ T8486] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 629.435403][ T8486] batman_adv: batadv0: Interface activated: syzkaller0 [ 629.443869][ T8486] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 629.506855][ T8486] batman_adv: batadv0: Removing interface: syzkaller0 [ 629.778500][ T8487] batman_adv: batadv0: Adding interface: syzkaller0 executing program [ 629.778559][ T8487] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 629.778633][ T8487] batman_adv: batadv0: Interface activated: syzkaller0 [ 629.782868][ T8487] FAULT_INJECTION: forcing a failure. [ 629.782868][ T8487] name failslab, interval 1, probability 0, space 0, times 0 [ 629.782970][ T8487] CPU: 1 UID: 0 PID: 8487 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 629.783051][ T8487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 629.783099][ T8487] Call Trace: [ 629.783122][ T8487] [ 629.783146][ T8487] dump_stack_lvl+0xe8/0x150 [ 629.783252][ T8487] should_fail_ex+0x410/0x560 [ 629.783338][ T8487] should_failslab+0xa8/0x100 [ 629.783415][ T8487] __kmalloc_cache_noprof+0xa3/0x600 [ 629.783480][ T8487] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 629.783579][ T8487] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 629.783689][ T8487] batadv_neigh_ifinfo_new+0x95/0x300 [ 629.783789][ T8487] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 629.783940][ T8487] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 629.784063][ T8487] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 629.784156][ T8487] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 629.784233][ T8487] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 629.784335][ T8487] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 629.784441][ T8487] batadv_iv_ogm_receive+0xc13/0x1740 [ 629.784577][ T8487] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 629.784705][ T8487] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 629.784801][ T8487] ? rcu_is_watching+0x16/0xb0 [ 629.784868][ T8487] ? __alloc_skb+0x27a/0x7a0 [ 629.784931][ T8487] ? trace_kmem_cache_alloc+0x29/0xe0 [ 629.785049][ T8487] batadv_batman_skb_recv+0x4b6/0x870 [ 629.785124][ T8487] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 629.785209][ T8487] ? netif_receive_skb+0x102/0xbf0 [ 629.785290][ T8487] ? netif_receive_skb+0x102/0xbf0 [ 629.785383][ T8487] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 629.785449][ T8487] netif_receive_skb+0x4af/0xbf0 [ 629.785543][ T8487] ? __pfx_netif_receive_skb+0x10/0x10 [ 629.785650][ T8487] ? tun_rx_batched+0x185/0x790 [ 629.785718][ T8487] tun_rx_batched+0x1de/0x790 [ 629.785802][ T8487] ? __pfx_tun_rx_batched+0x10/0x10 [ 629.785882][ T8487] ? lock_acquire+0x115/0x350 [ 629.785966][ T8487] ? tun_get_user+0x23ba/0x44d0 [ 629.786030][ T8487] ? __local_bh_enable_ip+0xd6/0x140 [ 629.786106][ T8487] ? tun_get_user+0x27b0/0x44d0 [ 629.786178][ T8487] tun_get_user+0x2be0/0x44d0 [ 629.786278][ T8487] ? tun_get_user+0x27b0/0x44d0 [ 629.786352][ T8487] ? aa_file_perm+0x4ed/0x15f0 [ 629.786435][ T8487] ? __pfx_tun_get_user+0x10/0x10 [ 629.786500][ T8487] ? __lock_acquire+0x747/0x2de0 [ 629.786569][ T8487] ? kstrtoull+0x137/0x1d0 [ 629.786679][ T8487] ? ref_tracker_alloc+0x341/0x4b0 [ 629.786747][ T8487] ? lock_acquire+0x115/0x350 [ 629.786804][ T8487] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 629.786886][ T8487] ? lock_acquire+0x115/0x350 [ 629.786942][ T8487] ? tun_get+0x1c/0x2f0 [ 629.787018][ T8487] ? tun_get+0x1c/0x2f0 [ 629.787090][ T8487] ? tun_get+0x1c/0x2f0 [ 629.787165][ T8487] tun_chr_write_iter+0x113/0x200 [ 629.787240][ T8487] vfs_write+0x612/0xba0 [ 629.787379][ T8487] ? __pfx_vfs_write+0x10/0x10 [ 629.787497][ T8487] ? do_sys_openat2+0x14e/0x200 [ 629.787620][ T8487] ksys_write+0x150/0x270 [ 629.787724][ T8487] ? __pfx_ksys_write+0x10/0x10 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 629.787842][ T8487] __do_fast_syscall_32+0x27a/0x6a0 [ 629.787913][ T8487] ? do_fast_syscall_32+0x33/0x70 [ 629.787986][ T8487] ? irqentry_exit+0x10f/0x910 [ 629.788053][ T8487] ? trace_irq_disable+0x3b/0x140 [ 629.788127][ T8487] do_fast_syscall_32+0x33/0x70 [ 629.788194][ T8487] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 629.788269][ T8487] RIP: 0023:0xf7d7f0ec executing program [ 629.788324][ T8487] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 629.788378][ T8487] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 629.788442][ T8487] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 629.788484][ T8487] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 629.788517][ T8487] RBP: 00000000000000e8 R08: 0000000000000000 R09: 0000000000000000 [ 629.788555][ T8487] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 629.788576][ T8487] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 629.788660][ T8487] [ 629.801963][ T8487] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 629.888869][ T8487] batman_adv: batadv0: Removing interface: syzkaller0 [ 630.069375][ T8488] batman_adv: batadv0: Adding interface: syzkaller0 [ 630.069424][ T8488] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 630.069514][ T8488] batman_adv: batadv0: Interface activated: syzkaller0 [ 630.077227][ T8488] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 630.155491][ T8488] batman_adv: batadv0: Removing interface: syzkaller0 [ 630.393759][ T8489] batman_adv: batadv0: Adding interface: syzkaller0 [ 630.393831][ T8489] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 630.393939][ T8489] batman_adv: batadv0: Interface activated: syzkaller0 [ 630.399489][ T8489] FAULT_INJECTION: forcing a failure. [ 630.399489][ T8489] name failslab, interval 1, probability 0, space 0, times 0 [ 630.399613][ T8489] CPU: 1 UID: 0 PID: 8489 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 630.399678][ T8489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 630.399721][ T8489] Call Trace: [ 630.399744][ T8489] [ 630.399775][ T8489] dump_stack_lvl+0xe8/0x150 [ 630.399881][ T8489] should_fail_ex+0x410/0x560 [ 630.399966][ T8489] should_failslab+0xa8/0x100 [ 630.400051][ T8489] __kmalloc_cache_noprof+0xa3/0x600 [ 630.400117][ T8489] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 630.400208][ T8489] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 630.400318][ T8489] batadv_neigh_ifinfo_new+0x95/0x300 [ 630.400435][ T8489] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 630.400495][ T8489] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 630.400536][ T8489] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 630.400598][ T8489] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 630.400716][ T8489] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 630.400807][ T8489] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 630.400913][ T8489] batadv_iv_ogm_receive+0xc13/0x1740 [ 630.401055][ T8489] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 630.401187][ T8489] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 630.401278][ T8489] ? rcu_is_watching+0x16/0xb0 [ 630.401352][ T8489] ? __alloc_skb+0x27a/0x7a0 [ 630.401415][ T8489] ? trace_kmem_cache_alloc+0x29/0xe0 [ 630.401521][ T8489] batadv_batman_skb_recv+0x4b6/0x870 [ 630.401597][ T8489] ? __pfx_batadv_batman_skb_recv+0x10/0x10 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 630.401673][ T8489] ? netif_receive_skb+0x102/0xbf0 [ 630.401747][ T8489] ? netif_receive_skb+0x102/0xbf0 [ 630.401827][ T8489] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 630.401888][ T8489] netif_receive_skb+0x4af/0xbf0 [ 630.401991][ T8489] ? __pfx_netif_receive_skb+0x10/0x10 [ 630.402116][ T8489] ? tun_rx_batched+0x185/0x790 [ 630.402198][ T8489] tun_rx_batched+0x1de/0x790 [ 630.402283][ T8489] ? __pfx_tun_rx_batched+0x10/0x10 [ 630.402346][ T8489] ? lock_acquire+0x115/0x350 executing program [ 630.402434][ T8489] ? tun_get_user+0x23ba/0x44d0 [ 630.402499][ T8489] ? __local_bh_enable_ip+0xd6/0x140 [ 630.402576][ T8489] ? tun_get_user+0x27b0/0x44d0 [ 630.402641][ T8489] tun_get_user+0x2be0/0x44d0 [ 630.402746][ T8489] ? tun_get_user+0x27b0/0x44d0 [ 630.402821][ T8489] ? aa_file_perm+0x4ed/0x15f0 [ 630.402884][ T8489] ? __pfx_tun_get_user+0x10/0x10 [ 630.402949][ T8489] ? __lock_acquire+0x747/0x2de0 [ 630.403017][ T8489] ? kstrtoull+0x137/0x1d0 [ 630.403127][ T8489] ? ref_tracker_alloc+0x341/0x4b0 [ 630.403192][ T8489] ? lock_acquire+0x115/0x350 [ 630.403255][ T8489] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 630.403330][ T8489] ? lock_acquire+0x115/0x350 [ 630.403396][ T8489] ? tun_get+0x1c/0x2f0 [ 630.403466][ T8489] ? tun_get+0x1c/0x2f0 [ 630.403530][ T8489] ? tun_get+0x1c/0x2f0 [ 630.403620][ T8489] tun_chr_write_iter+0x113/0x200 [ 630.403693][ T8489] vfs_write+0x612/0xba0 [ 630.403802][ T8489] ? __pfx_vfs_write+0x10/0x10 [ 630.403911][ T8489] ? do_sys_openat2+0x14e/0x200 [ 630.404008][ T8489] ksys_write+0x150/0x270 [ 630.404103][ T8489] ? __pfx_ksys_write+0x10/0x10 [ 630.404218][ T8489] __do_fast_syscall_32+0x27a/0x6a0 [ 630.404294][ T8489] ? do_fast_syscall_32+0x33/0x70 [ 630.404359][ T8489] ? irqentry_exit+0x10f/0x910 [ 630.404433][ T8489] ? trace_irq_disable+0x3b/0x140 [ 630.404495][ T8489] do_fast_syscall_32+0x33/0x70 [ 630.404562][ T8489] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 630.404638][ T8489] RIP: 0023:0xf7d7f0ec [ 630.404692][ T8489] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 630.404749][ T8489] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 630.404815][ T8489] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 630.404858][ T8489] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 630.404905][ T8489] RBP: 00000000000000ea R08: 0000000000000000 R09: 0000000000000000 [ 630.404946][ T8489] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 630.405008][ T8489] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 630.405096][ T8489] [ 630.412171][ T8489] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 630.495796][ T8489] batman_adv: batadv0: Removing interface: syzkaller0 [ 630.806092][ T8490] batman_adv: batadv0: Adding interface: syzkaller0 [ 630.806145][ T8490] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 630.806247][ T8490] batman_adv: batadv0: Interface activated: syzkaller0 [ 630.812100][ T8490] FAULT_INJECTION: forcing a failure. [ 630.812100][ T8490] name failslab, interval 1, probability 0, space 0, times 0 [ 630.812197][ T8490] CPU: 1 UID: 0 PID: 8490 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 630.812261][ T8490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 630.812302][ T8490] Call Trace: [ 630.812324][ T8490] [ 630.812357][ T8490] dump_stack_lvl+0xe8/0x150 [ 630.812472][ T8490] should_fail_ex+0x410/0x560 [ 630.812558][ T8490] should_failslab+0xa8/0x100 [ 630.812643][ T8490] __kmalloc_cache_noprof+0xa3/0x600 [ 630.812702][ T8490] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 630.812798][ T8490] ? batadv_neigh_ifinfo_new+0x95/0x300 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 630.812912][ T8490] batadv_neigh_ifinfo_new+0x95/0x300 [ 630.813017][ T8490] batadv_iv_ogm_process_per_outif+0x52e/0x2790 [ 630.813141][ T8490] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 630.813257][ T8490] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 630.813377][ T8490] ? netdev_lower_get_next_private_rcu+0x9f/0x100 [ 630.813456][ T8490] batadv_iv_ogm_receive+0x11c7/0x1740 [ 630.813564][ T8490] ? batadv_iv_ogm_receive+0x4b1/0x1740 executing program [ 630.813694][ T8490] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 630.813782][ T8490] ? rcu_is_watching+0x16/0xb0 [ 630.813856][ T8490] ? __alloc_skb+0x27a/0x7a0 [ 630.813927][ T8490] ? trace_kmem_cache_alloc+0x29/0xe0 [ 630.814029][ T8490] batadv_batman_skb_recv+0x4b6/0x870 [ 630.814106][ T8490] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 630.814177][ T8490] ? netif_receive_skb+0x102/0xbf0 [ 630.814258][ T8490] ? netif_receive_skb+0x102/0xbf0 [ 630.814336][ T8490] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 630.814410][ T8490] netif_receive_skb+0x4af/0xbf0 [ 630.814517][ T8490] ? __pfx_netif_receive_skb+0x10/0x10 [ 630.814625][ T8490] ? tun_rx_batched+0x185/0x790 [ 630.814706][ T8490] tun_rx_batched+0x1de/0x790 [ 630.814812][ T8490] ? __pfx_tun_rx_batched+0x10/0x10 [ 630.814877][ T8490] ? lock_acquire+0x115/0x350 [ 630.814985][ T8490] ? tun_get_user+0x23ba/0x44d0 [ 630.815049][ T8490] ? __local_bh_enable_ip+0xd6/0x140 [ 630.815126][ T8490] ? tun_get_user+0x27b0/0x44d0 [ 630.815191][ T8490] tun_get_user+0x2be0/0x44d0 [ 630.815298][ T8490] ? tun_get_user+0x27b0/0x44d0 [ 630.815389][ T8490] ? aa_file_perm+0x4ed/0x15f0 [ 630.815476][ T8490] ? __pfx_tun_get_user+0x10/0x10 [ 630.815549][ T8490] ? __lock_acquire+0x747/0x2de0 [ 630.815628][ T8490] ? kstrtoull+0x137/0x1d0 [ 630.815738][ T8490] ? ref_tracker_alloc+0x341/0x4b0 [ 630.815821][ T8490] ? lock_acquire+0x115/0x350 [ 630.815878][ T8490] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 630.815957][ T8490] ? lock_acquire+0x115/0x350 [ 630.816028][ T8490] ? tun_get+0x1c/0x2f0 [ 630.816124][ T8490] ? tun_get+0x1c/0x2f0 [ 630.816180][ T8490] ? tun_get+0x1c/0x2f0 [ 630.816256][ T8490] tun_chr_write_iter+0x113/0x200 [ 630.816323][ T8490] vfs_write+0x612/0xba0 [ 630.816442][ T8490] ? __pfx_vfs_write+0x10/0x10 [ 630.816571][ T8490] ? do_sys_openat2+0x14e/0x200 [ 630.816671][ T8490] ksys_write+0x150/0x270 [ 630.816759][ T8490] ? __pfx_ksys_write+0x10/0x10 [ 630.816887][ T8490] __do_fast_syscall_32+0x27a/0x6a0 [ 630.816976][ T8490] ? do_fast_syscall_32+0x33/0x70 [ 630.817045][ T8490] ? irqentry_exit+0x10f/0x910 [ 630.817102][ T8490] ? trace_irq_disable+0x3b/0x140 [ 630.817207][ T8490] do_fast_syscall_32+0x33/0x70 [ 630.817275][ T8490] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 630.817349][ T8490] RIP: 0023:0xf7d7f0ec [ 630.817525][ T8490] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 630.817580][ T8490] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 630.817644][ T8490] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 630.817685][ T8490] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 630.817726][ T8490] RBP: 00000000000000eb R08: 0000000000000000 R09: 0000000000000000 [ 630.817760][ T8490] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 630.817795][ T8490] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 630.817885][ T8490] [ 630.824075][ T8490] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 630.912463][ T8490] batman_adv: batadv0: Removing interface: syzkaller0 [ 631.175324][ T8491] batman_adv: batadv0: Adding interface: syzkaller0 [ 631.175380][ T8491] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 631.175704][ T8491] batman_adv: batadv0: Interface activated: syzkaller0 [ 631.182356][ T8491] FAULT_INJECTION: forcing a failure. [ 631.182356][ T8491] name failslab, interval 1, probability 0, space 0, times 0 [ 631.182491][ T8491] CPU: 1 UID: 0 PID: 8491 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 631.182557][ T8491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 631.182599][ T8491] Call Trace: [ 631.182623][ T8491] executing program [ 631.182654][ T8491] dump_stack_lvl+0xe8/0x150 [ 631.182761][ T8491] should_fail_ex+0x410/0x560 [ 631.182840][ T8491] should_failslab+0xa8/0x100 [ 631.182918][ T8491] __kmalloc_cache_noprof+0xa3/0x600 [ 631.182989][ T8491] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 631.183086][ T8491] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 631.183178][ T8491] batadv_neigh_ifinfo_new+0x95/0x300 [ 631.183216][ T8491] batadv_iv_ogm_process_per_outif+0x52e/0x2790 [ 631.183344][ T8491] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 631.183446][ T8491] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 631.183568][ T8491] ? netdev_lower_get_next_private_rcu+0x9f/0x100 [ 631.183654][ T8491] batadv_iv_ogm_receive+0x11c7/0x1740 [ 631.183792][ T8491] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 631.183922][ T8491] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 631.183998][ T8491] ? rcu_is_watching+0x16/0xb0 [ 631.184073][ T8491] ? __alloc_skb+0x27a/0x7a0 [ 631.184133][ T8491] ? trace_kmem_cache_alloc+0x29/0xe0 [ 631.184243][ T8491] batadv_batman_skb_recv+0x4b6/0x870 [ 631.184320][ T8491] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 631.184398][ T8491] ? netif_receive_skb+0x102/0xbf0 [ 631.184531][ T8491] ? netif_receive_skb+0x102/0xbf0 [ 631.184621][ T8491] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 631.184688][ T8491] netif_receive_skb+0x4af/0xbf0 [ 631.184801][ T8491] ? __pfx_netif_receive_skb+0x10/0x10 [ 631.184934][ T8491] ? tun_rx_batched+0x185/0x790 [ 631.184996][ T8491] tun_rx_batched+0x1de/0x790 [ 631.185077][ T8491] ? __pfx_tun_rx_batched+0x10/0x10 [ 631.185141][ T8491] ? lock_acquire+0x115/0x350 [ 631.185228][ T8491] ? tun_get_user+0x23ba/0x44d0 [ 631.185285][ T8491] ? __local_bh_enable_ip+0xd6/0x140 [ 631.185361][ T8491] ? tun_get_user+0x27b0/0x44d0 [ 631.185429][ T8491] tun_get_user+0x2be0/0x44d0 [ 631.185547][ T8491] ? tun_get_user+0x27b0/0x44d0 [ 631.185626][ T8491] ? aa_file_perm+0x4ed/0x15f0 [ 631.185703][ T8491] ? __pfx_tun_get_user+0x10/0x10 [ 631.185780][ T8491] ? __lock_acquire+0x747/0x2de0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 631.185847][ T8491] ? kstrtoull+0x137/0x1d0 [ 631.185960][ T8491] ? ref_tracker_alloc+0x341/0x4b0 [ 631.186031][ T8491] ? lock_acquire+0x115/0x350 [ 631.186100][ T8491] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 631.186177][ T8491] ? lock_acquire+0x115/0x350 [ 631.186240][ T8491] ? tun_get+0x1c/0x2f0 [ 631.186346][ T8491] ? tun_get+0x1c/0x2f0 [ 631.186418][ T8491] ? tun_get+0x1c/0x2f0 [ 631.186497][ T8491] tun_chr_write_iter+0x113/0x200 [ 631.186574][ T8491] vfs_write+0x612/0xba0 executing program [ 631.186685][ T8491] ? __pfx_vfs_write+0x10/0x10 [ 631.186818][ T8491] ? do_sys_openat2+0x14e/0x200 [ 631.186958][ T8491] ksys_write+0x150/0x270 [ 631.187049][ T8491] ? __pfx_ksys_write+0x10/0x10 [ 631.187169][ T8491] __do_fast_syscall_32+0x27a/0x6a0 [ 631.187246][ T8491] ? do_fast_syscall_32+0x33/0x70 [ 631.187313][ T8491] ? irqentry_exit+0x10f/0x910 [ 631.187372][ T8491] ? trace_irq_disable+0x3b/0x140 [ 631.187465][ T8491] do_fast_syscall_32+0x33/0x70 [ 631.187547][ T8491] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 631.187633][ T8491] RIP: 0023:0xf7d7f0ec [ 631.187707][ T8491] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 631.187763][ T8491] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 631.187829][ T8491] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 631.187872][ T8491] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 631.187909][ T8491] RBP: 00000000000000ec R08: 0000000000000000 R09: 0000000000000000 [ 631.187944][ T8491] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 631.187978][ T8491] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 631.188067][ T8491] [ 631.222555][ T8491] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 631.274330][ T8491] batman_adv: batadv0: Removing interface: syzkaller0 [ 631.547794][ T8492] batman_adv: batadv0: Adding interface: syzkaller0 [ 631.547858][ T8492] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 631.552408][ T8492] batman_adv: batadv0: Interface activated: syzkaller0 [ 631.556586][ T8492] FAULT_INJECTION: forcing a failure. [ 631.556586][ T8492] name failslab, interval 1, probability 0, space 0, times 0 [ 631.556674][ T8492] CPU: 1 UID: 0 PID: 8492 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 631.556734][ T8492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 631.556769][ T8492] Call Trace: [ 631.556798][ T8492] [ 631.556822][ T8492] dump_stack_lvl+0xe8/0x150 [ 631.556920][ T8492] should_fail_ex+0x410/0x560 [ 631.557012][ T8492] should_failslab+0xa8/0x100 [ 631.557090][ T8492] __kmalloc_cache_noprof+0xa3/0x600 [ 631.557169][ T8492] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 631.557258][ T8492] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 631.557368][ T8492] batadv_neigh_ifinfo_new+0x95/0x300 [ 631.557476][ T8492] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 631.557628][ T8492] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 631.557752][ T8492] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 631.557858][ T8492] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 631.557962][ T8492] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 631.558048][ T8492] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 631.558148][ T8492] batadv_iv_ogm_receive+0xc13/0x1740 [ 631.558269][ T8492] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 631.558398][ T8492] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 631.558509][ T8492] ? rcu_is_watching+0x16/0xb0 [ 631.558584][ T8492] ? __alloc_skb+0x27a/0x7a0 [ 631.558672][ T8492] ? trace_kmem_cache_alloc+0x29/0xe0 [ 631.558771][ T8492] batadv_batman_skb_recv+0x4b6/0x870 [ 631.558854][ T8492] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 631.558939][ T8492] ? netif_receive_skb+0x102/0xbf0 [ 631.559039][ T8492] ? netif_receive_skb+0x102/0xbf0 [ 631.559144][ T8492] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 631.559227][ T8492] netif_receive_skb+0x4af/0xbf0 [ 631.559340][ T8492] ? __pfx_netif_receive_skb+0x10/0x10 [ 631.559456][ T8492] ? tun_rx_batched+0x185/0x790 [ 631.559524][ T8492] tun_rx_batched+0x1de/0x790 [ 631.559608][ T8492] ? __pfx_tun_rx_batched+0x10/0x10 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed executing program [ 631.559675][ T8492] ? lock_acquire+0x115/0x350 [ 631.559753][ T8492] ? tun_get_user+0x23ba/0x44d0 [ 631.559815][ T8492] ? __local_bh_enable_ip+0xd6/0x140 [ 631.559892][ T8492] ? tun_get_user+0x27b0/0x44d0 [ 631.559962][ T8492] tun_get_user+0x2be0/0x44d0 [ 631.560060][ T8492] ? tun_get_user+0x27b0/0x44d0 [ 631.560138][ T8492] ? aa_file_perm+0x4ed/0x15f0 [ 631.560215][ T8492] ? __pfx_tun_get_user+0x10/0x10 [ 631.560282][ T8492] ? __lock_acquire+0x747/0x2de0 [ 631.560348][ T8492] ? kstrtoull+0x137/0x1d0 [ 631.560469][ T8492] ? ref_tracker_alloc+0x341/0x4b0 [ 631.560551][ T8492] ? lock_acquire+0x115/0x350 [ 631.560619][ T8492] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 631.560703][ T8492] ? lock_acquire+0x115/0x350 [ 631.560766][ T8492] ? tun_get+0x1c/0x2f0 [ 631.560841][ T8492] ? tun_get+0x1c/0x2f0 [ 631.560904][ T8492] ? tun_get+0x1c/0x2f0 [ 631.560983][ T8492] tun_chr_write_iter+0x113/0x200 [ 631.561048][ T8492] vfs_write+0x612/0xba0 [ 631.561167][ T8492] ? __pfx_vfs_write+0x10/0x10 [ 631.561283][ T8492] ? do_sys_openat2+0x14e/0x200 [ 631.561383][ T8492] ksys_write+0x150/0x270 [ 631.561480][ T8492] ? __pfx_ksys_write+0x10/0x10 [ 631.561589][ T8492] __do_fast_syscall_32+0x27a/0x6a0 [ 631.561677][ T8492] ? do_fast_syscall_32+0x33/0x70 [ 631.561769][ T8492] ? irqentry_exit+0x10f/0x910 [ 631.561825][ T8492] ? trace_irq_disable+0x3b/0x140 [ 631.561912][ T8492] do_fast_syscall_32+0x33/0x70 [ 631.561987][ T8492] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 631.562072][ T8492] RIP: 0023:0xf7d7f0ec [ 631.562136][ T8492] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 631.562191][ T8492] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 631.562257][ T8492] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 631.562299][ T8492] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 631.562342][ T8492] RBP: 00000000000000ed R08: 0000000000000000 R09: 0000000000000000 [ 631.562376][ T8492] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 631.562410][ T8492] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 631.562506][ T8492] [ 631.578588][ T8492] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 631.676125][ T8492] batman_adv: batadv0: Removing interface: syzkaller0 [ 631.926695][ T8493] batman_adv: batadv0: Adding interface: syzkaller0 [ 631.926764][ T8493] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 631.926869][ T8493] batman_adv: batadv0: Interface activated: syzkaller0 [ 631.932361][ T8493] FAULT_INJECTION: forcing a failure. [ 631.932361][ T8493] name failslab, interval 1, probability 0, space 0, times 0 [ 631.932457][ T8493] CPU: 1 UID: 0 PID: 8493 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 631.932523][ T8493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 631.932563][ T8493] Call Trace: [ 631.932586][ T8493] [ 631.932617][ T8493] dump_stack_lvl+0xe8/0x150 [ 631.932716][ T8493] should_fail_ex+0x410/0x560 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 631.932802][ T8493] should_failslab+0xa8/0x100 [ 631.932880][ T8493] __kmalloc_cache_noprof+0xa3/0x600 [ 631.932945][ T8493] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 631.933035][ T8493] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 631.933167][ T8493] batadv_neigh_ifinfo_new+0x95/0x300 [ 631.933275][ T8493] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 631.933405][ T8493] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 631.933513][ T8493] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 executing program [ 631.933614][ T8493] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 631.933713][ T8493] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 631.933791][ T8493] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 631.933906][ T8493] batadv_iv_ogm_receive+0xc13/0x1740 [ 631.934032][ T8493] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 631.934154][ T8493] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 631.934265][ T8493] ? rcu_is_watching+0x16/0xb0 [ 631.934334][ T8493] ? __alloc_skb+0x27a/0x7a0 [ 631.934398][ T8493] ? trace_kmem_cache_alloc+0x29/0xe0 [ 631.934502][ T8493] batadv_batman_skb_recv+0x4b6/0x870 [ 631.934567][ T8493] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 631.934595][ T8493] ? netif_receive_skb+0x102/0xbf0 [ 631.934627][ T8493] ? netif_receive_skb+0x102/0xbf0 [ 631.934658][ T8493] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 631.934684][ T8493] netif_receive_skb+0x4af/0xbf0 [ 631.934785][ T8493] ? __pfx_netif_receive_skb+0x10/0x10 [ 631.934908][ T8493] ? tun_rx_batched+0x185/0x790 [ 631.934982][ T8493] tun_rx_batched+0x1de/0x790 [ 631.935061][ T8493] ? __pfx_tun_rx_batched+0x10/0x10 [ 631.935124][ T8493] ? lock_acquire+0x115/0x350 [ 631.935202][ T8493] ? tun_get_user+0x23ba/0x44d0 [ 631.935267][ T8493] ? __local_bh_enable_ip+0xd6/0x140 [ 631.935344][ T8493] ? tun_get_user+0x27b0/0x44d0 [ 631.935420][ T8493] tun_get_user+0x2be0/0x44d0 [ 631.935518][ T8493] ? tun_get_user+0x27b0/0x44d0 [ 631.935593][ T8493] ? aa_file_perm+0x4ed/0x15f0 [ 631.935669][ T8493] ? __pfx_tun_get_user+0x10/0x10 [ 631.935735][ T8493] ? __lock_acquire+0x747/0x2de0 [ 631.935798][ T8493] ? kstrtoull+0x137/0x1d0 [ 631.935900][ T8493] ? ref_tracker_alloc+0x341/0x4b0 [ 631.935965][ T8493] ? lock_acquire+0x115/0x350 [ 631.936029][ T8493] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 631.936102][ T8493] ? lock_acquire+0x115/0x350 [ 631.936173][ T8493] ? tun_get+0x1c/0x2f0 [ 631.936250][ T8493] ? tun_get+0x1c/0x2f0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 631.936323][ T8493] ? tun_get+0x1c/0x2f0 [ 631.936391][ T8493] tun_chr_write_iter+0x113/0x200 [ 631.936471][ T8493] vfs_write+0x612/0xba0 [ 631.936621][ T8493] ? __pfx_vfs_write+0x10/0x10 [ 631.936753][ T8493] ? do_sys_openat2+0x14e/0x200 [ 631.936878][ T8493] ksys_write+0x150/0x270 [ 631.936982][ T8493] ? __pfx_ksys_write+0x10/0x10 [ 631.937086][ T8493] __do_fast_syscall_32+0x27a/0x6a0 [ 631.937156][ T8493] ? do_fast_syscall_32+0x33/0x70 [ 631.937222][ T8493] ? irqentry_exit+0x10f/0x910 [ 631.937285][ T8493] ? trace_irq_disable+0x3b/0x140 [ 631.937361][ T8493] do_fast_syscall_32+0x33/0x70 [ 631.937427][ T8493] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 631.937508][ T8493] RIP: 0023:0xf7d7f0ec [ 631.937557][ T8493] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 executing program [ 631.937611][ T8493] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 631.937683][ T8493] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 631.937719][ T8493] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 631.937763][ T8493] RBP: 00000000000000ee R08: 0000000000000000 R09: 0000000000000000 [ 631.937796][ T8493] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 631.937829][ T8493] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 631.937909][ T8493] [ 631.977340][ T8493] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 632.046829][ T8493] batman_adv: batadv0: Removing interface: syzkaller0 [ 632.326438][ T8494] batman_adv: batadv0: Adding interface: syzkaller0 [ 632.326492][ T8494] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 632.326588][ T8494] batman_adv: batadv0: Interface activated: syzkaller0 [ 632.332897][ T8494] FAULT_INJECTION: forcing a failure. [ 632.332897][ T8494] name failslab, interval 1, probability 0, space 0, times 0 [ 632.333012][ T8494] CPU: 1 UID: 0 PID: 8494 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 632.333085][ T8494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 632.333119][ T8494] Call Trace: [ 632.333142][ T8494] [ 632.333173][ T8494] dump_stack_lvl+0xe8/0x150 [ 632.333278][ T8494] should_fail_ex+0x410/0x560 [ 632.333364][ T8494] should_failslab+0xa8/0x100 [ 632.333444][ T8494] __kmalloc_cache_noprof+0xa3/0x600 [ 632.333519][ T8494] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 632.333607][ T8494] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 632.333736][ T8494] batadv_neigh_ifinfo_new+0x95/0x300 [ 632.333838][ T8494] batadv_iv_ogm_process_per_outif+0x52e/0x2790 [ 632.333994][ T8494] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 632.334095][ T8494] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 632.334206][ T8494] ? netdev_lower_get_next_private_rcu+0x9f/0x100 [ 632.334300][ T8494] batadv_iv_ogm_receive+0x11c7/0x1740 [ 632.334445][ T8494] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 632.334573][ T8494] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 632.334647][ T8494] ? rcu_is_watching+0x16/0xb0 [ 632.334708][ T8494] ? __alloc_skb+0x27a/0x7a0 [ 632.334814][ T8494] ? trace_kmem_cache_alloc+0x29/0xe0 [ 632.334934][ T8494] batadv_batman_skb_recv+0x4b6/0x870 [ 632.335014][ T8494] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 632.335101][ T8494] ? netif_receive_skb+0x102/0xbf0 [ 632.335188][ T8494] ? netif_receive_skb+0x102/0xbf0 [ 632.335263][ T8494] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 632.335336][ T8494] netif_receive_skb+0x4af/0xbf0 [ 632.335444][ T8494] ? __pfx_netif_receive_skb+0x10/0x10 [ 632.335543][ T8494] ? tun_rx_batched+0x185/0x790 [ 632.335618][ T8494] tun_rx_batched+0x1de/0x790 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 632.335697][ T8494] ? __pfx_tun_rx_batched+0x10/0x10 [ 632.335772][ T8494] ? lock_acquire+0x115/0x350 [ 632.335864][ T8494] ? tun_get_user+0x23ba/0x44d0 [ 632.335936][ T8494] ? __local_bh_enable_ip+0xd6/0x140 [ 632.336020][ T8494] ? tun_get_user+0x27b0/0x44d0 [ 632.336096][ T8494] tun_get_user+0x2be0/0x44d0 [ 632.336196][ T8494] ? tun_get_user+0x27b0/0x44d0 [ 632.336277][ T8494] ? aa_file_perm+0x4ed/0x15f0 [ 632.336355][ T8494] ? __pfx_tun_get_user+0x10/0x10 [ 632.336436][ T8494] ? __lock_acquire+0x747/0x2de0 executing program [ 632.336510][ T8494] ? kstrtoull+0x137/0x1d0 [ 632.336617][ T8494] ? ref_tracker_alloc+0x341/0x4b0 [ 632.336702][ T8494] ? lock_acquire+0x115/0x350 [ 632.336777][ T8494] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 632.336855][ T8494] ? lock_acquire+0x115/0x350 [ 632.336922][ T8494] ? tun_get+0x1c/0x2f0 [ 632.337000][ T8494] ? tun_get+0x1c/0x2f0 [ 632.337064][ T8494] ? tun_get+0x1c/0x2f0 [ 632.337139][ T8494] tun_chr_write_iter+0x113/0x200 [ 632.337189][ T8494] vfs_write+0x612/0xba0 [ 632.337309][ T8494] ? __pfx_vfs_write+0x10/0x10 [ 632.337433][ T8494] ? do_sys_openat2+0x14e/0x200 [ 632.337500][ T8494] ? seqcount_lockdep_reader_access+0xd4/0x100 [ 632.337611][ T8494] ksys_write+0x150/0x270 [ 632.337703][ T8494] ? __pfx_ksys_write+0x10/0x10 [ 632.337831][ T8494] __do_fast_syscall_32+0x27a/0x6a0 [ 632.337907][ T8494] ? do_fast_syscall_32+0x33/0x70 [ 632.337974][ T8494] ? irqentry_exit+0x10f/0x910 [ 632.338050][ T8494] do_fast_syscall_32+0x33/0x70 [ 632.338124][ T8494] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 632.338199][ T8494] RIP: 0023:0xf7d7f0ec [ 632.338255][ T8494] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 632.338309][ T8494] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 632.338368][ T8494] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 632.338411][ T8494] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 632.338454][ T8494] RBP: 00000000000000ef R08: 0000000000000000 R09: 0000000000000000 [ 632.338488][ T8494] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 632.338523][ T8494] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 632.338620][ T8494] [ 632.345236][ T8494] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 632.432884][ T8494] batman_adv: batadv0: Removing interface: syzkaller0 [ 632.483129][ T1315] ieee802154 phy0 wpan0: encryption failed: -22 [ 632.483297][ T1315] ieee802154 phy1 wpan1: encryption failed: -22 [ 632.704802][ T8495] batman_adv: batadv0: Adding interface: syzkaller0 [ 632.704856][ T8495] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 632.704943][ T8495] batman_adv: batadv0: Interface activated: syzkaller0 [ 632.710763][ T8495] FAULT_INJECTION: forcing a failure. [ 632.710763][ T8495] name failslab, interval 1, probability 0, space 0, times 0 [ 632.710853][ T8495] CPU: 1 UID: 0 PID: 8495 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 632.710951][ T8495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 632.710988][ T8495] Call Trace: [ 632.711011][ T8495] [ 632.711042][ T8495] dump_stack_lvl+0xe8/0x150 [ 632.711142][ T8495] should_fail_ex+0x410/0x560 [ 632.711235][ T8495] should_failslab+0xa8/0x100 [ 632.711312][ T8495] __kmalloc_cache_noprof+0xa3/0x600 [ 632.711377][ T8495] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 632.711452][ T8495] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 632.711568][ T8495] batadv_neigh_ifinfo_new+0x95/0x300 [ 632.711688][ T8495] batadv_iv_ogm_process_per_outif+0x52e/0x2790 [ 632.711855][ T8495] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 632.711952][ T8495] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 632.712067][ T8495] ? netdev_lower_get_next_private_rcu+0x9f/0x100 [ 632.712146][ T8495] batadv_iv_ogm_receive+0x11c7/0x1740 [ 632.712289][ T8495] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 632.712418][ T8495] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 632.712506][ T8495] ? rcu_is_watching+0x16/0xb0 [ 632.712580][ T8495] ? __alloc_skb+0x27a/0x7a0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed executing program [ 632.712635][ T8495] ? trace_kmem_cache_alloc+0x29/0xe0 [ 632.712745][ T8495] batadv_batman_skb_recv+0x4b6/0x870 [ 632.712822][ T8495] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 632.712875][ T8495] ? netif_receive_skb+0x102/0xbf0 [ 632.712906][ T8495] ? netif_receive_skb+0x102/0xbf0 [ 632.712956][ T8495] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 632.713039][ T8495] netif_receive_skb+0x4af/0xbf0 [ 632.713149][ T8495] ? __pfx_netif_receive_skb+0x10/0x10 [ 632.713260][ T8495] ? tun_rx_batched+0x185/0x790 [ 632.713335][ T8495] tun_rx_batched+0x1de/0x790 [ 632.713412][ T8495] ? __pfx_tun_rx_batched+0x10/0x10 [ 632.713477][ T8495] ? lock_acquire+0x115/0x350 [ 632.713565][ T8495] ? tun_get_user+0x23ba/0x44d0 [ 632.713629][ T8495] ? __local_bh_enable_ip+0xd6/0x140 [ 632.713705][ T8495] ? tun_get_user+0x27b0/0x44d0 [ 632.713775][ T8495] tun_get_user+0x2be0/0x44d0 [ 632.713881][ T8495] ? tun_get_user+0x27b0/0x44d0 [ 632.713960][ T8495] ? aa_file_perm+0x4ed/0x15f0 [ 632.714036][ T8495] ? __pfx_tun_get_user+0x10/0x10 [ 632.714134][ T8495] ? __lock_acquire+0x747/0x2de0 [ 632.714220][ T8495] ? kstrtoull+0x137/0x1d0 [ 632.714331][ T8495] ? ref_tracker_alloc+0x341/0x4b0 [ 632.714388][ T8495] ? lock_acquire+0x115/0x350 [ 632.714453][ T8495] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 632.714529][ T8495] ? lock_acquire+0x115/0x350 [ 632.714593][ T8495] ? tun_get+0x1c/0x2f0 [ 632.714670][ T8495] ? tun_get+0x1c/0x2f0 [ 632.714771][ T8495] ? tun_get+0x1c/0x2f0 [ 632.714854][ T8495] tun_chr_write_iter+0x113/0x200 [ 632.714930][ T8495] vfs_write+0x612/0xba0 [ 632.715042][ T8495] ? __pfx_vfs_write+0x10/0x10 [ 632.715152][ T8495] ? do_sys_openat2+0x14e/0x200 [ 632.715273][ T8495] ksys_write+0x150/0x270 [ 632.715364][ T8495] ? __pfx_ksys_write+0x10/0x10 [ 632.715483][ T8495] __do_fast_syscall_32+0x27a/0x6a0 [ 632.715560][ T8495] ? do_fast_syscall_32+0x33/0x70 [ 632.715625][ T8495] ? irqentry_exit+0x10f/0x910 [ 632.715693][ T8495] do_fast_syscall_32+0x33/0x70 [ 632.715754][ T8495] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 632.715829][ T8495] RIP: 0023:0xf7d7f0ec [ 632.715878][ T8495] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 632.715924][ T8495] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 632.715989][ T8495] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 632.716033][ T8495] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 632.716084][ T8495] RBP: 00000000000000f0 R08: 0000000000000000 R09: 0000000000000000 [ 632.716126][ T8495] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 632.716168][ T8495] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 632.716435][ T8495] [ 632.743034][ T8495] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 632.805747][ T8495] batman_adv: batadv0: Removing interface: syzkaller0 [ 632.997734][ T8496] batman_adv: batadv0: Adding interface: syzkaller0 [ 632.997796][ T8496] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 632.998436][ T8496] batman_adv: batadv0: Interface activated: syzkaller0 [ 633.002963][ T8496] FAULT_INJECTION: forcing a failure. the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 633.002963][ T8496] name failslab, interval 1, probability 0, space 0, times 0 [ 633.003046][ T8496] CPU: 1 UID: 0 PID: 8496 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 633.003121][ T8496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 633.003169][ T8496] Call Trace: [ 633.003195][ T8496] [ 633.003230][ T8496] dump_stack_lvl+0xe8/0x150 [ 633.003344][ T8496] should_fail_ex+0x410/0x560 [ 633.003442][ T8496] should_failslab+0xa8/0x100 [ 633.003500][ T8496] __kmalloc_cache_noprof+0xa3/0x600 executing program [ 633.003592][ T8496] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 633.003716][ T8496] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 633.003860][ T8496] batadv_neigh_ifinfo_new+0x95/0x300 [ 633.003988][ T8496] batadv_iv_ogm_process_per_outif+0x52e/0x2790 [ 633.004173][ T8496] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 633.004290][ T8496] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 633.004409][ T8496] ? netdev_lower_get_next_private_rcu+0x9f/0x100 [ 633.004505][ T8496] batadv_iv_ogm_receive+0x11c7/0x1740 [ 633.004659][ T8496] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 633.004825][ T8496] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 633.004936][ T8496] ? rcu_is_watching+0x16/0xb0 [ 633.005037][ T8496] ? __alloc_skb+0x27a/0x7a0 [ 633.005117][ T8496] ? trace_kmem_cache_alloc+0x29/0xe0 [ 633.005239][ T8496] batadv_batman_skb_recv+0x4b6/0x870 [ 633.005326][ T8496] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 633.005420][ T8496] ? netif_receive_skb+0x102/0xbf0 [ 633.005522][ T8496] ? netif_receive_skb+0x102/0xbf0 [ 633.005627][ T8496] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 633.005707][ T8496] netif_receive_skb+0x4af/0xbf0 [ 633.005830][ T8496] ? __pfx_netif_receive_skb+0x10/0x10 [ 633.005960][ T8496] ? tun_rx_batched+0x185/0x790 [ 633.006036][ T8496] tun_rx_batched+0x1de/0x790 [ 633.006132][ T8496] ? __pfx_tun_rx_batched+0x10/0x10 [ 633.006217][ T8496] ? lock_acquire+0x115/0x350 [ 633.006314][ T8496] ? tun_get_user+0x23ba/0x44d0 [ 633.006388][ T8496] ? __local_bh_enable_ip+0xd6/0x140 [ 633.006490][ T8496] ? tun_get_user+0x27b0/0x44d0 [ 633.006565][ T8496] tun_get_user+0x2be0/0x44d0 [ 633.006684][ T8496] ? tun_get_user+0x27b0/0x44d0 [ 633.006761][ T8496] ? aa_file_perm+0x4ed/0x15f0 [ 633.006867][ T8496] ? __pfx_tun_get_user+0x10/0x10 [ 633.006942][ T8496] ? __lock_acquire+0x747/0x2de0 [ 633.007023][ T8496] ? kstrtoull+0x137/0x1d0 [ 633.007155][ T8496] ? ref_tracker_alloc+0x341/0x4b0 [ 633.007236][ T8496] ? lock_acquire+0x115/0x350 [ 633.007307][ T8496] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 633.007407][ T8496] ? lock_acquire+0x115/0x350 [ 633.007478][ T8496] ? tun_get+0x1c/0x2f0 [ 633.007564][ T8496] ? tun_get+0x1c/0x2f0 [ 633.007635][ T8496] ? tun_get+0x1c/0x2f0 [ 633.007737][ T8496] tun_chr_write_iter+0x113/0x200 [ 633.007847][ T8496] vfs_write+0x612/0xba0 [ 633.007991][ T8496] ? __pfx_vfs_write+0x10/0x10 [ 633.008124][ T8496] ? do_sys_openat2+0x14e/0x200 [ 633.008244][ T8496] ksys_write+0x150/0x270 [ 633.008357][ T8496] ? __pfx_ksys_write+0x10/0x10 [ 633.008497][ T8496] __do_fast_syscall_32+0x27a/0x6a0 [ 633.008580][ T8496] ? do_fast_syscall_32+0x33/0x70 [ 633.008654][ T8496] ? irqentry_exit+0x10f/0x910 [ 633.008723][ T8496] ? trace_irq_disable+0x3b/0x140 [ 633.008816][ T8496] do_fast_syscall_32+0x33/0x70 [ 633.008892][ T8496] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 633.008982][ T8496] RIP: 0023:0xf7d7f0ec the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 633.009044][ T8496] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 633.009113][ T8496] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 633.009204][ T8496] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 633.009267][ T8496] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 633.009299][ T8496] RBP: 00000000000000f1 R08: 0000000000000000 R09: 0000000000000000 [ 633.009330][ T8496] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 executing program [ 633.009376][ T8496] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 633.009481][ T8496] [ 633.017564][ T8496] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 633.112552][ T8496] batman_adv: batadv0: Removing interface: syzkaller0 [ 633.383263][ T8497] batman_adv: batadv0: Adding interface: syzkaller0 [ 633.383319][ T8497] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 633.383395][ T8497] batman_adv: batadv0: Interface activated: syzkaller0 [ 633.388232][ T8497] FAULT_INJECTION: forcing a failure. [ 633.388232][ T8497] name failslab, interval 1, probability 0, space 0, times 0 [ 633.388321][ T8497] CPU: 0 UID: 0 PID: 8497 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 633.388387][ T8497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 633.388427][ T8497] Call Trace: [ 633.388450][ T8497] [ 633.388481][ T8497] dump_stack_lvl+0xe8/0x150 [ 633.388588][ T8497] should_fail_ex+0x410/0x560 [ 633.388667][ T8497] should_failslab+0xa8/0x100 [ 633.388754][ T8497] __kmalloc_cache_noprof+0xa3/0x600 [ 633.388840][ T8497] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 633.388938][ T8497] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 633.389094][ T8497] batadv_neigh_ifinfo_new+0x95/0x300 [ 633.389196][ T8497] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 633.389324][ T8497] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 633.389461][ T8497] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 633.389577][ T8497] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 633.389664][ T8497] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 633.389749][ T8497] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 633.389856][ T8497] batadv_iv_ogm_receive+0xc13/0x1740 [ 633.389977][ T8497] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 633.390104][ T8497] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 633.390201][ T8497] ? rcu_is_watching+0x16/0xb0 [ 633.390269][ T8497] ? __alloc_skb+0x27a/0x7a0 [ 633.390340][ T8497] ? trace_kmem_cache_alloc+0x29/0xe0 [ 633.390448][ T8497] batadv_batman_skb_recv+0x4b6/0x870 [ 633.390530][ T8497] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 633.390606][ T8497] ? netif_receive_skb+0x102/0xbf0 [ 633.390702][ T8497] ? netif_receive_skb+0x102/0xbf0 [ 633.390812][ T8497] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 633.390879][ T8497] netif_receive_skb+0x4af/0xbf0 [ 633.390988][ T8497] ? __pfx_netif_receive_skb+0x10/0x10 [ 633.391095][ T8497] ? tun_rx_batched+0x185/0x790 [ 633.391170][ T8497] tun_rx_batched+0x1de/0x790 [ 633.391253][ T8497] ? __pfx_tun_rx_batched+0x10/0x10 [ 633.391312][ T8497] ? lock_acquire+0x115/0x350 [ 633.391399][ T8497] ? tun_get_user+0x23ba/0x44d0 [ 633.391463][ T8497] ? __local_bh_enable_ip+0xd6/0x140 [ 633.391537][ T8497] ? tun_get_user+0x27b0/0x44d0 [ 633.391603][ T8497] tun_get_user+0x2be0/0x44d0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 633.391702][ T8497] ? tun_get_user+0x27b0/0x44d0 [ 633.391796][ T8497] ? aa_file_perm+0x4ed/0x15f0 [ 633.391874][ T8497] ? __pfx_tun_get_user+0x10/0x10 [ 633.391948][ T8497] ? __lock_acquire+0x747/0x2de0 [ 633.392023][ T8497] ? kstrtoull+0x137/0x1d0 [ 633.392140][ T8497] ? ref_tracker_alloc+0x341/0x4b0 [ 633.392218][ T8497] ? lock_acquire+0x115/0x350 [ 633.392292][ T8497] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 633.392370][ T8497] ? lock_acquire+0x115/0x350 executing program [ 633.392434][ T8497] ? tun_get+0x1c/0x2f0 [ 633.392510][ T8497] ? tun_get+0x1c/0x2f0 [ 633.392572][ T8497] ? tun_get+0x1c/0x2f0 [ 633.392648][ T8497] tun_chr_write_iter+0x113/0x200 [ 633.392722][ T8497] vfs_write+0x612/0xba0 [ 633.392843][ T8497] ? __pfx_vfs_write+0x10/0x10 [ 633.392963][ T8497] ? do_sys_openat2+0x14e/0x200 [ 633.393030][ T8497] ? seqcount_lockdep_reader_access+0xd4/0x100 [ 633.393132][ T8497] ksys_write+0x150/0x270 [ 633.393223][ T8497] ? __pfx_ksys_write+0x10/0x10 [ 633.393339][ T8497] __do_fast_syscall_32+0x27a/0x6a0 [ 633.393467][ T8497] ? do_fast_syscall_32+0x33/0x70 [ 633.393523][ T8497] ? irqentry_exit+0x10f/0x910 [ 633.393588][ T8497] do_fast_syscall_32+0x33/0x70 [ 633.393650][ T8497] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 633.393736][ T8497] RIP: 0023:0xf7d7f0ec [ 633.393820][ T8497] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 633.393874][ T8497] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 633.393934][ T8497] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 633.393977][ T8497] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 633.394019][ T8497] RBP: 00000000000000f2 R08: 0000000000000000 R09: 0000000000000000 [ 633.394054][ T8497] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 633.394109][ T8497] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 633.394195][ T8497] [ 633.426180][ T8497] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 633.484274][ T8497] batman_adv: batadv0: Removing interface: syzkaller0 [ 633.706637][ T8498] batman_adv: batadv0: Adding interface: syzkaller0 [ 633.706703][ T8498] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 633.706825][ T8498] batman_adv: batadv0: Interface activated: syzkaller0 [ 633.712253][ T8498] FAULT_INJECTION: forcing a failure. [ 633.712253][ T8498] name failslab, interval 1, probability 0, space 0, times 0 [ 633.712371][ T8498] CPU: 1 UID: 0 PID: 8498 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 633.712469][ T8498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 633.712504][ T8498] Call Trace: [ 633.712535][ T8498] [ 633.712584][ T8498] dump_stack_lvl+0xe8/0x150 [ 633.712693][ T8498] should_fail_ex+0x410/0x560 [ 633.712782][ T8498] should_failslab+0xa8/0x100 [ 633.712854][ T8498] __kmalloc_cache_noprof+0xa3/0x600 [ 633.712877][ T8498] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 633.712912][ T8498] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 633.712954][ T8498] batadv_neigh_ifinfo_new+0x95/0x300 [ 633.712996][ T8498] batadv_iv_ogm_process_per_outif+0x52e/0x2790 [ 633.713050][ T8498] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 633.713079][ T8498] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 633.713112][ T8498] ? netdev_lower_get_next_private_rcu+0x9f/0x100 [ 633.713136][ T8498] batadv_iv_ogm_receive+0x11c7/0x1740 [ 633.713174][ T8498] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 633.713212][ T8498] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 633.713240][ T8498] ? rcu_is_watching+0x16/0xb0 [ 633.713262][ T8498] ? __alloc_skb+0x27a/0x7a0 [ 633.713280][ T8498] ? trace_kmem_cache_alloc+0x29/0xe0 [ 633.713319][ T8498] batadv_batman_skb_recv+0x4b6/0x870 [ 633.713342][ T8498] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 633.713366][ T8498] ? netif_receive_skb+0x102/0xbf0 [ 633.713392][ T8498] ? netif_receive_skb+0x102/0xbf0 [ 633.713418][ T8498] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 633.713437][ T8498] netif_receive_skb+0x4af/0xbf0 [ 633.713468][ T8498] ? __pfx_netif_receive_skb+0x10/0x10 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 633.713500][ T8498] ? tun_rx_batched+0x185/0x790 [ 633.713521][ T8498] tun_rx_batched+0x1de/0x790 [ 633.713545][ T8498] ? __pfx_tun_rx_batched+0x10/0x10 [ 633.713563][ T8498] ? lock_acquire+0x115/0x350 [ 633.713588][ T8498] ? tun_get_user+0x23ba/0x44d0 [ 633.713606][ T8498] ? __local_bh_enable_ip+0xd6/0x140 [ 633.713629][ T8498] ? tun_get_user+0x27b0/0x44d0 [ 633.713649][ T8498] tun_get_user+0x2be0/0x44d0 [ 633.713678][ T8498] ? tun_get_user+0x27b0/0x44d0 executing program [ 633.713701][ T8498] ? aa_file_perm+0x4ed/0x15f0 [ 633.713725][ T8498] ? __pfx_tun_get_user+0x10/0x10 [ 633.713745][ T8498] ? __lock_acquire+0x747/0x2de0 [ 633.713766][ T8498] ? kstrtoull+0x137/0x1d0 [ 633.713808][ T8498] ? ref_tracker_alloc+0x341/0x4b0 [ 633.713828][ T8498] ? lock_acquire+0x115/0x350 [ 633.713846][ T8498] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 633.713869][ T8498] ? lock_acquire+0x115/0x350 [ 633.713886][ T8498] ? tun_get+0x1c/0x2f0 [ 633.713907][ T8498] ? tun_get+0x1c/0x2f0 [ 633.713929][ T8498] ? tun_get+0x1c/0x2f0 [ 633.713953][ T8498] tun_chr_write_iter+0x113/0x200 [ 633.713974][ T8498] vfs_write+0x612/0xba0 [ 633.714007][ T8498] ? __pfx_vfs_write+0x10/0x10 [ 633.714044][ T8498] ? do_sys_openat2+0x14e/0x200 [ 633.714076][ T8498] ksys_write+0x150/0x270 [ 633.714106][ T8498] ? __pfx_ksys_write+0x10/0x10 [ 633.714142][ T8498] __do_fast_syscall_32+0x27a/0x6a0 [ 633.714166][ T8498] ? do_fast_syscall_32+0x33/0x70 [ 633.714187][ T8498] ? irqentry_exit+0x10f/0x910 [ 633.714205][ T8498] ? trace_irq_disable+0x3b/0x140 [ 633.714228][ T8498] do_fast_syscall_32+0x33/0x70 [ 633.714249][ T8498] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 633.714273][ T8498] RIP: 0023:0xf7d7f0ec [ 633.714292][ T8498] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 633.714316][ T8498] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 633.714337][ T8498] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 633.714350][ T8498] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 633.714361][ T8498] RBP: 00000000000000f3 R08: 0000000000000000 R09: 0000000000000000 [ 633.714372][ T8498] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 633.714385][ T8498] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 633.714412][ T8498] [ 633.721946][ T8498] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 633.822993][ T8498] batman_adv: batadv0: Removing interface: syzkaller0 [ 634.035291][ T8499] batman_adv: batadv0: Adding interface: syzkaller0 [ 634.035355][ T8499] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 634.035453][ T8499] batman_adv: batadv0: Interface activated: syzkaller0 [ 634.042113][ T8499] FAULT_INJECTION: forcing a failure. [ 634.042113][ T8499] name failslab, interval 1, probability 0, space 0, times 0 [ 634.042206][ T8499] CPU: 1 UID: 0 PID: 8499 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 634.042275][ T8499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 634.042318][ T8499] Call Trace: [ 634.042342][ T8499] [ 634.042374][ T8499] dump_stack_lvl+0xe8/0x150 [ 634.042497][ T8499] should_fail_ex+0x410/0x560 [ 634.042594][ T8499] should_failslab+0xa8/0x100 [ 634.042683][ T8499] __kmalloc_cache_noprof+0xa3/0x600 [ 634.042749][ T8499] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 634.042850][ T8499] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 634.042963][ T8499] batadv_neigh_ifinfo_new+0x95/0x300 [ 634.043069][ T8499] batadv_iv_ogm_process_per_outif+0x52e/0x2790 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 634.043229][ T8499] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 634.043332][ T8499] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 634.043449][ T8499] ? netdev_lower_get_next_private_rcu+0x9f/0x100 [ 634.043534][ T8499] batadv_iv_ogm_receive+0x11c7/0x1740 [ 634.043676][ T8499] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 634.043807][ T8499] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 634.043921][ T8499] ? rcu_is_watching+0x16/0xb0 [ 634.044004][ T8499] ? __alloc_skb+0x27a/0x7a0 [ 634.044061][ T8499] ? trace_kmem_cache_alloc+0x29/0xe0 executing program [ 634.044174][ T8499] batadv_batman_skb_recv+0x4b6/0x870 [ 634.044257][ T8499] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 634.044336][ T8499] ? netif_receive_skb+0x102/0xbf0 [ 634.044422][ T8499] ? netif_receive_skb+0x102/0xbf0 [ 634.044517][ T8499] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 634.044576][ T8499] netif_receive_skb+0x4af/0xbf0 [ 634.044697][ T8499] ? __pfx_netif_receive_skb+0x10/0x10 [ 634.044807][ T8499] ? tun_rx_batched+0x185/0x790 [ 634.044882][ T8499] tun_rx_batched+0x1de/0x790 [ 634.044959][ T8499] ? __pfx_tun_rx_batched+0x10/0x10 [ 634.045024][ T8499] ? lock_acquire+0x115/0x350 [ 634.045116][ T8499] ? tun_get_user+0x23ba/0x44d0 [ 634.045173][ T8499] ? __local_bh_enable_ip+0xd6/0x140 [ 634.045252][ T8499] ? tun_get_user+0x27b0/0x44d0 [ 634.045329][ T8499] tun_get_user+0x2be0/0x44d0 [ 634.045384][ T8499] ? tun_get_user+0x27b0/0x44d0 [ 634.045412][ T8499] ? aa_file_perm+0x4ed/0x15f0 [ 634.045440][ T8499] ? __pfx_tun_get_user+0x10/0x10 [ 634.045465][ T8499] ? __lock_acquire+0x747/0x2de0 [ 634.045549][ T8499] ? kstrtoull+0x137/0x1d0 [ 634.045680][ T8499] ? ref_tracker_alloc+0x341/0x4b0 [ 634.045754][ T8499] ? lock_acquire+0x115/0x350 [ 634.045818][ T8499] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 634.045895][ T8499] ? lock_acquire+0x115/0x350 [ 634.045951][ T8499] ? tun_get+0x1c/0x2f0 [ 634.046029][ T8499] ? tun_get+0x1c/0x2f0 [ 634.046092][ T8499] ? tun_get+0x1c/0x2f0 [ 634.046264][ T8499] tun_chr_write_iter+0x113/0x200 [ 634.046341][ T8499] vfs_write+0x612/0xba0 [ 634.046454][ T8499] ? __pfx_vfs_write+0x10/0x10 [ 634.046573][ T8499] ? do_sys_openat2+0x14e/0x200 [ 634.046690][ T8499] ksys_write+0x150/0x270 [ 634.046789][ T8499] ? __pfx_ksys_write+0x10/0x10 [ 634.046907][ T8499] __do_fast_syscall_32+0x27a/0x6a0 [ 634.046978][ T8499] ? do_fast_syscall_32+0x33/0x70 [ 634.047053][ T8499] ? irqentry_exit+0x10f/0x910 [ 634.047116][ T8499] ? trace_irq_disable+0x3b/0x140 [ 634.047194][ T8499] do_fast_syscall_32+0x33/0x70 [ 634.047289][ T8499] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 634.047382][ T8499] RIP: 0023:0xf7d7f0ec [ 634.047440][ T8499] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 634.047503][ T8499] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 634.047574][ T8499] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 634.047629][ T8499] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 634.047664][ T8499] RBP: 00000000000000f4 R08: 0000000000000000 R09: 0000000000000000 [ 634.047705][ T8499] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 634.047739][ T8499] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 634.047827][ T8499] [ 634.056872][ T8499] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 634.153748][ T8499] batman_adv: batadv0: Removing interface: syzkaller0 [ 634.423161][ T8500] batman_adv: batadv0: Adding interface: syzkaller0 [ 634.423227][ T8500] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 634.423317][ T8500] batman_adv: batadv0: Interface activated: syzkaller0 [ 634.427477][ T8500] FAULT_INJECTION: forcing a failure. [ 634.427477][ T8500] name failslab, interval 1, probability 0, space 0, times 0 [ 634.427575][ T8500] CPU: 1 UID: 0 PID: 8500 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 634.427640][ T8500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 634.427681][ T8500] Call Trace: executing program [ 634.427704][ T8500] [ 634.427729][ T8500] dump_stack_lvl+0xe8/0x150 [ 634.427829][ T8500] should_fail_ex+0x410/0x560 [ 634.427910][ T8500] should_failslab+0xa8/0x100 [ 634.427993][ T8500] __kmalloc_cache_noprof+0xa3/0x600 [ 634.428058][ T8500] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 634.428165][ T8500] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 634.428284][ T8500] batadv_neigh_ifinfo_new+0x95/0x300 [ 634.428390][ T8500] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 634.428546][ T8500] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 634.428663][ T8500] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 634.428734][ T8500] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 634.428839][ T8500] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 634.428936][ T8500] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 634.429033][ T8500] batadv_iv_ogm_receive+0xc13/0x1740 [ 634.429160][ T8500] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 634.429293][ T8500] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 634.429391][ T8500] ? rcu_is_watching+0x16/0xb0 [ 634.429459][ T8500] ? __alloc_skb+0x27a/0x7a0 [ 634.429523][ T8500] ? trace_kmem_cache_alloc+0x29/0xe0 [ 634.429630][ T8500] batadv_batman_skb_recv+0x4b6/0x870 [ 634.429707][ T8500] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 634.429776][ T8500] ? netif_receive_skb+0x102/0xbf0 [ 634.429862][ T8500] ? netif_receive_skb+0x102/0xbf0 [ 634.429963][ T8500] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 634.430043][ T8500] netif_receive_skb+0x4af/0xbf0 [ 634.430149][ T8500] ? __pfx_netif_receive_skb+0x10/0x10 [ 634.430268][ T8500] ? tun_rx_batched+0x185/0x790 [ 634.430335][ T8500] tun_rx_batched+0x1de/0x790 [ 634.430412][ T8500] ? __pfx_tun_rx_batched+0x10/0x10 [ 634.430478][ T8500] ? lock_acquire+0x115/0x350 [ 634.430573][ T8500] ? tun_get_user+0x23ba/0x44d0 [ 634.430636][ T8500] ? __local_bh_enable_ip+0xd6/0x140 [ 634.430713][ T8500] ? tun_get_user+0x27b0/0x44d0 [ 634.430765][ T8500] tun_get_user+0x2be0/0x44d0 [ 634.430863][ T8500] ? tun_get_user+0x27b0/0x44d0 [ 634.430940][ T8500] ? aa_file_perm+0x4ed/0x15f0 [ 634.431018][ T8500] ? __pfx_tun_get_user+0x10/0x10 [ 634.431085][ T8500] ? __lock_acquire+0x747/0x2de0 [ 634.431158][ T8500] ? kstrtoull+0x137/0x1d0 [ 634.431269][ T8500] ? ref_tracker_alloc+0x341/0x4b0 [ 634.431342][ T8500] ? lock_acquire+0x115/0x350 [ 634.431398][ T8500] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 634.431488][ T8500] ? lock_acquire+0x115/0x350 [ 634.431562][ T8500] ? tun_get+0x1c/0x2f0 [ 634.431637][ T8500] ? tun_get+0x1c/0x2f0 [ 634.431694][ T8500] ? tun_get+0x1c/0x2f0 [ 634.431756][ T8500] tun_chr_write_iter+0x113/0x200 [ 634.431830][ T8500] vfs_write+0x612/0xba0 [ 634.431996][ T8500] ? __pfx_vfs_write+0x10/0x10 [ 634.432113][ T8500] ? do_sys_openat2+0x14e/0x200 [ 634.432210][ T8500] ksys_write+0x150/0x270 [ 634.432310][ T8500] ? __pfx_ksys_write+0x10/0x10 [ 634.432447][ T8500] __do_fast_syscall_32+0x27a/0x6a0 [ 634.432523][ T8500] ? do_fast_syscall_32+0x33/0x70 [ 634.432588][ T8500] ? irqentry_exit+0x10f/0x910 [ 634.432651][ T8500] ? trace_irq_disable+0x3b/0x140 [ 634.432719][ T8500] do_fast_syscall_32+0x33/0x70 [ 634.432786][ T8500] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 634.432852][ T8500] RIP: 0023:0xf7d7f0ec [ 634.432872][ T8500] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 634.432889][ T8500] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 634.432913][ T8500] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 634.432929][ T8500] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 634.432976][ T8500] RBP: 00000000000000f5 R08: 0000000000000000 R09: 0000000000000000 [ 634.433033][ T8500] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 634.433068][ T8500] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 634.433163][ T8500] [ 634.451084][ T8500] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 634.538425][ T8500] batman_adv: batadv0: Removing interface: syzkaller0 [ 634.822005][ T8501] batman_adv: batadv0: Adding interface: syzkaller0 [ 634.822058][ T8501] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 634.822202][ T8501] batman_adv: batadv0: Interface activated: syzkaller0 [ 634.826611][ T8501] FAULT_INJECTION: forcing a failure. [ 634.826611][ T8501] name failslab, interval 1, probability 0, space 0, times 0 [ 634.826718][ T8501] CPU: 1 UID: 0 PID: 8501 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 634.826783][ T8501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 634.826824][ T8501] Call Trace: executing program [ 634.826847][ T8501] [ 634.826871][ T8501] dump_stack_lvl+0xe8/0x150 [ 634.826975][ T8501] should_fail_ex+0x410/0x560 [ 634.827055][ T8501] should_failslab+0xa8/0x100 [ 634.827143][ T8501] __kmalloc_cache_noprof+0xa3/0x600 [ 634.827208][ T8501] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 634.827295][ T8501] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 634.827409][ T8501] batadv_neigh_ifinfo_new+0x95/0x300 [ 634.827506][ T8501] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 634.827649][ T8501] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 634.827772][ T8501] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 634.827880][ T8501] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 634.827988][ T8501] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 634.828076][ T8501] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 634.828207][ T8501] batadv_iv_ogm_receive+0xc13/0x1740 [ 634.828336][ T8501] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 634.828456][ T8501] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 634.828551][ T8501] ? rcu_is_watching+0x16/0xb0 [ 634.828629][ T8501] ? __alloc_skb+0x27a/0x7a0 [ 634.828692][ T8501] ? trace_kmem_cache_alloc+0x29/0xe0 [ 634.828793][ T8501] batadv_batman_skb_recv+0x4b6/0x870 [ 634.828849][ T8501] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 634.828933][ T8501] ? netif_receive_skb+0x102/0xbf0 [ 634.829013][ T8501] ? netif_receive_skb+0x102/0xbf0 [ 634.829109][ T8501] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 634.829183][ T8501] netif_receive_skb+0x4af/0xbf0 [ 634.829286][ T8501] ? __pfx_netif_receive_skb+0x10/0x10 [ 634.829411][ T8501] ? tun_rx_batched+0x185/0x790 [ 634.829477][ T8501] tun_rx_batched+0x1de/0x790 [ 634.829575][ T8501] ? __pfx_tun_rx_batched+0x10/0x10 [ 634.829642][ T8501] ? lock_acquire+0x115/0x350 [ 634.829728][ T8501] ? tun_get_user+0x23ba/0x44d0 [ 634.829785][ T8501] ? __local_bh_enable_ip+0xd6/0x140 [ 634.829862][ T8501] ? tun_get_user+0x27b0/0x44d0 [ 634.829927][ T8501] tun_get_user+0x2be0/0x44d0 [ 634.830032][ T8501] ? tun_get_user+0x27b0/0x44d0 [ 634.830126][ T8501] ? aa_file_perm+0x4ed/0x15f0 [ 634.830204][ T8501] ? __pfx_tun_get_user+0x10/0x10 [ 634.830269][ T8501] ? __lock_acquire+0x747/0x2de0 [ 634.830298][ T8501] ? kstrtoull+0x137/0x1d0 [ 634.830339][ T8501] ? ref_tracker_alloc+0x341/0x4b0 [ 634.830396][ T8501] ? lock_acquire+0x115/0x350 [ 634.830466][ T8501] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 634.830544][ T8501] ? lock_acquire+0x115/0x350 [ 634.830600][ T8501] ? tun_get+0x1c/0x2f0 [ 634.830676][ T8501] ? tun_get+0x1c/0x2f0 [ 634.830733][ T8501] ? tun_get+0x1c/0x2f0 [ 634.830807][ T8501] tun_chr_write_iter+0x113/0x200 [ 634.830880][ T8501] vfs_write+0x612/0xba0 [ 634.830989][ T8501] ? __pfx_vfs_write+0x10/0x10 [ 634.831107][ T8501] ? do_sys_openat2+0x14e/0x200 [ 634.831206][ T8501] ksys_write+0x150/0x270 [ 634.831296][ T8501] ? __pfx_ksys_write+0x10/0x10 [ 634.831411][ T8501] __do_fast_syscall_32+0x27a/0x6a0 [ 634.831487][ T8501] ? do_fast_syscall_32+0x33/0x70 [ 634.831549][ T8501] ? irqentry_exit+0x10f/0x910 [ 634.831566][ T8501] ? trace_irq_disable+0x3b/0x140 [ 634.831588][ T8501] do_fast_syscall_32+0x33/0x70 [ 634.831607][ T8501] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 634.831628][ T8501] RIP: 0023:0xf7d7f0ec [ 634.831643][ T8501] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 634.831658][ T8501] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 634.831724][ T8501] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 634.831766][ T8501] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 634.831808][ T8501] RBP: 00000000000000f6 R08: 0000000000000000 R09: 0000000000000000 [ 634.831841][ T8501] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 634.831876][ T8501] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 634.831986][ T8501] [ 634.847506][ T8501] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 634.940696][ T8501] batman_adv: batadv0: Removing interface: syzkaller0 [ 635.213581][ T8502] batman_adv: batadv0: Adding interface: syzkaller0 [ 635.213637][ T8502] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 635.213720][ T8502] batman_adv: batadv0: Interface activated: syzkaller0 [ 635.227997][ T8502] FAULT_INJECTION: forcing a failure. [ 635.227997][ T8502] name failslab, interval 1, probability 0, space 0, times 0 [ 635.228125][ T8502] CPU: 1 UID: 0 PID: 8502 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 635.228200][ T8502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 635.228235][ T8502] Call Trace: [ 635.228258][ T8502] [ 635.228288][ T8502] dump_stack_lvl+0xe8/0x150 executing program [ 635.228392][ T8502] should_fail_ex+0x410/0x560 [ 635.228483][ T8502] should_failslab+0xa8/0x100 [ 635.228569][ T8502] __kmalloc_cache_noprof+0xa3/0x600 [ 635.228643][ T8502] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 635.228741][ T8502] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 635.228851][ T8502] batadv_neigh_ifinfo_new+0x95/0x300 [ 635.228959][ T8502] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 635.229101][ T8502] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 635.229222][ T8502] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 635.229321][ T8502] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 635.229422][ T8502] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 635.229509][ T8502] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 635.229601][ T8502] batadv_iv_ogm_receive+0xc13/0x1740 [ 635.229721][ T8502] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 635.229858][ T8502] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 635.229956][ T8502] ? rcu_is_watching+0x16/0xb0 [ 635.230031][ T8502] ? __alloc_skb+0x27a/0x7a0 [ 635.230097][ T8502] ? trace_kmem_cache_alloc+0x29/0xe0 [ 635.230152][ T8502] batadv_batman_skb_recv+0x4b6/0x870 [ 635.230180][ T8502] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 635.230268][ T8502] ? netif_receive_skb+0x102/0xbf0 [ 635.230375][ T8502] ? netif_receive_skb+0x102/0xbf0 [ 635.230457][ T8502] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 635.230531][ T8502] netif_receive_skb+0x4af/0xbf0 [ 635.230642][ T8502] ? __pfx_netif_receive_skb+0x10/0x10 [ 635.230749][ T8502] ? tun_rx_batched+0x185/0x790 [ 635.230823][ T8502] tun_rx_batched+0x1de/0x790 [ 635.230901][ T8502] ? __pfx_tun_rx_batched+0x10/0x10 [ 635.230969][ T8502] ? lock_acquire+0x115/0x350 [ 635.231049][ T8502] ? tun_get_user+0x23ba/0x44d0 [ 635.231107][ T8502] ? __local_bh_enable_ip+0xd6/0x140 [ 635.231184][ T8502] ? tun_get_user+0x27b0/0x44d0 [ 635.231249][ T8502] tun_get_user+0x2be0/0x44d0 [ 635.231348][ T8502] ? tun_get_user+0x27b0/0x44d0 [ 635.231431][ T8502] ? aa_file_perm+0x4ed/0x15f0 [ 635.231507][ T8502] ? __pfx_tun_get_user+0x10/0x10 [ 635.231568][ T8502] ? __lock_acquire+0x747/0x2de0 [ 635.231635][ T8502] ? kstrtoull+0x137/0x1d0 [ 635.231746][ T8502] ? ref_tracker_alloc+0x341/0x4b0 [ 635.231812][ T8502] ? lock_acquire+0x115/0x350 [ 635.231910][ T8502] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 635.231993][ T8502] ? lock_acquire+0x115/0x350 [ 635.232065][ T8502] ? tun_get+0x1c/0x2f0 [ 635.232145][ T8502] ? tun_get+0x1c/0x2f0 [ 635.232200][ T8502] ? tun_get+0x1c/0x2f0 [ 635.232275][ T8502] tun_chr_write_iter+0x113/0x200 [ 635.232342][ T8502] vfs_write+0x612/0xba0 [ 635.232463][ T8502] ? __pfx_vfs_write+0x10/0x10 [ 635.232566][ T8502] ? do_sys_openat2+0x14e/0x200 [ 635.232665][ T8502] ksys_write+0x150/0x270 [ 635.232761][ T8502] ? __pfx_ksys_write+0x10/0x10 [ 635.232871][ T8502] __do_fast_syscall_32+0x27a/0x6a0 [ 635.232946][ T8502] ? do_fast_syscall_32+0x33/0x70 [ 635.233013][ T8502] ? irqentry_exit+0x10f/0x910 [ 635.233080][ T8502] ? trace_irq_disable+0x3b/0x140 [ 635.233156][ T8502] do_fast_syscall_32+0x33/0x70 [ 635.233231][ T8502] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 635.233322][ T8502] RIP: 0023:0xf7d7f0ec [ 635.233384][ T8502] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 635.233439][ T8502] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 635.233506][ T8502] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 635.233542][ T8502] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 635.233576][ T8502] RBP: 00000000000000f7 R08: 0000000000000000 R09: 0000000000000000 [ 635.233617][ T8502] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 635.233650][ T8502] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 635.233738][ T8502] [ 635.275956][ T8502] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 635.333196][ T8502] batman_adv: batadv0: Removing interface: syzkaller0 [ 635.596326][ T8503] batman_adv: batadv0: Adding interface: syzkaller0 [ 635.596391][ T8503] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 635.596480][ T8503] batman_adv: batadv0: Interface activated: syzkaller0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 635.604829][ T8503] FAULT_INJECTION: forcing a failure. [ 635.604829][ T8503] name failslab, interval 1, probability 0, space 0, times 0 [ 635.604927][ T8503] CPU: 1 UID: 0 PID: 8503 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 635.605000][ T8503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 635.605044][ T8503] Call Trace: [ 635.605066][ T8503] [ 635.605090][ T8503] dump_stack_lvl+0xe8/0x150 [ 635.605199][ T8503] should_fail_ex+0x410/0x560 executing program [ 635.605286][ T8503] should_failslab+0xa8/0x100 [ 635.605365][ T8503] __kmalloc_cache_noprof+0xa3/0x600 [ 635.605437][ T8503] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 635.605561][ T8503] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 635.605676][ T8503] batadv_neigh_ifinfo_new+0x95/0x300 [ 635.605799][ T8503] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 635.605930][ T8503] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 635.606038][ T8503] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 635.606141][ T8503] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 635.606252][ T8503] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 635.606337][ T8503] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 635.606436][ T8503] batadv_iv_ogm_receive+0xc13/0x1740 [ 635.606567][ T8503] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 635.606676][ T8503] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 635.606784][ T8503] ? rcu_is_watching+0x16/0xb0 [ 635.606850][ T8503] ? __alloc_skb+0x27a/0x7a0 [ 635.606913][ T8503] ? trace_kmem_cache_alloc+0x29/0xe0 [ 635.607020][ T8503] batadv_batman_skb_recv+0x4b6/0x870 [ 635.607096][ T8503] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 635.607174][ T8503] ? netif_receive_skb+0x102/0xbf0 [ 635.607261][ T8503] ? netif_receive_skb+0x102/0xbf0 [ 635.607349][ T8503] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 635.607413][ T8503] netif_receive_skb+0x4af/0xbf0 [ 635.607530][ T8503] ? __pfx_netif_receive_skb+0x10/0x10 [ 635.607653][ T8503] ? tun_rx_batched+0x185/0x790 [ 635.607727][ T8503] tun_rx_batched+0x1de/0x790 [ 635.607814][ T8503] ? __pfx_tun_rx_batched+0x10/0x10 [ 635.607873][ T8503] ? lock_acquire+0x115/0x350 [ 635.607920][ T8503] ? tun_get_user+0x23ba/0x44d0 [ 635.607941][ T8503] ? __local_bh_enable_ip+0xd6/0x140 [ 635.607969][ T8503] ? tun_get_user+0x27b0/0x44d0 [ 635.607993][ T8503] tun_get_user+0x2be0/0x44d0 [ 635.608085][ T8503] ? tun_get_user+0x27b0/0x44d0 [ 635.608154][ T8503] ? aa_file_perm+0x4ed/0x15f0 [ 635.608347][ T8503] ? __pfx_tun_get_user+0x10/0x10 [ 635.608419][ T8503] ? __lock_acquire+0x747/0x2de0 [ 635.608485][ T8503] ? kstrtoull+0x137/0x1d0 [ 635.608596][ T8503] ? ref_tracker_alloc+0x341/0x4b0 [ 635.608660][ T8503] ? lock_acquire+0x115/0x350 [ 635.608680][ T8503] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 635.608704][ T8503] ? lock_acquire+0x115/0x350 [ 635.608722][ T8503] ? tun_get+0x1c/0x2f0 [ 635.608746][ T8503] ? tun_get+0x1c/0x2f0 [ 635.608765][ T8503] ? tun_get+0x1c/0x2f0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 635.608807][ T8503] tun_chr_write_iter+0x113/0x200 [ 635.608875][ T8503] vfs_write+0x612/0xba0 [ 635.608992][ T8503] ? __pfx_vfs_write+0x10/0x10 [ 635.609104][ T8503] ? do_sys_openat2+0x14e/0x200 [ 635.609213][ T8503] ksys_write+0x150/0x270 [ 635.609303][ T8503] ? __pfx_ksys_write+0x10/0x10 [ 635.609335][ T8503] __do_fast_syscall_32+0x27a/0x6a0 [ 635.609356][ T8503] ? do_fast_syscall_32+0x33/0x70 [ 635.609411][ T8503] ? irqentry_exit+0x10f/0x910 [ 635.609467][ T8503] ? trace_irq_disable+0x3b/0x140 executing program [ 635.609544][ T8503] do_fast_syscall_32+0x33/0x70 [ 635.609612][ T8503] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 635.609681][ T8503] RIP: 0023:0xf7d7f0ec [ 635.609737][ T8503] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 635.609813][ T8503] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 635.609895][ T8503] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 635.609960][ T8503] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 635.610020][ T8503] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000000 [ 635.610069][ T8503] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 635.610103][ T8503] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 635.610198][ T8503] [ 635.633608][ T8503] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 635.702442][ T8503] batman_adv: batadv0: Removing interface: syzkaller0 [ 635.940569][ T8504] batman_adv: batadv0: Adding interface: syzkaller0 [ 635.940628][ T8504] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 635.940724][ T8504] batman_adv: batadv0: Interface activated: syzkaller0 [ 635.948942][ T8504] FAULT_INJECTION: forcing a failure. [ 635.948942][ T8504] name failslab, interval 1, probability 0, space 0, times 0 [ 635.949050][ T8504] CPU: 1 UID: 0 PID: 8504 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 635.949123][ T8504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 635.949158][ T8504] Call Trace: [ 635.949180][ T8504] [ 635.949210][ T8504] dump_stack_lvl+0xe8/0x150 [ 635.949320][ T8504] should_fail_ex+0x410/0x560 [ 635.949399][ T8504] should_failslab+0xa8/0x100 [ 635.949485][ T8504] __kmalloc_cache_noprof+0xa3/0x600 [ 635.949544][ T8504] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 635.949626][ T8504] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 635.949736][ T8504] batadv_neigh_ifinfo_new+0x95/0x300 [ 635.949841][ T8504] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 635.949988][ T8504] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 635.950110][ T8504] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 635.950214][ T8504] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 635.950314][ T8504] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 635.950399][ T8504] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 635.950497][ T8504] batadv_iv_ogm_receive+0xc13/0x1740 [ 635.950618][ T8504] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 635.950740][ T8504] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 635.950836][ T8504] ? rcu_is_watching+0x16/0xb0 [ 635.950906][ T8504] ? __alloc_skb+0x27a/0x7a0 [ 635.950971][ T8504] ? trace_kmem_cache_alloc+0x29/0xe0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed executing program [ 635.951078][ T8504] batadv_batman_skb_recv+0x4b6/0x870 [ 635.951154][ T8504] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 635.951230][ T8504] ? netif_receive_skb+0x102/0xbf0 [ 635.951316][ T8504] ? netif_receive_skb+0x102/0xbf0 [ 635.951416][ T8504] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 635.951496][ T8504] netif_receive_skb+0x4af/0xbf0 [ 635.951582][ T8504] ? __pfx_netif_receive_skb+0x10/0x10 [ 635.951683][ T8504] ? tun_rx_batched+0x185/0x790 [ 635.951751][ T8504] tun_rx_batched+0x1de/0x790 [ 635.951829][ T8504] ? __pfx_tun_rx_batched+0x10/0x10 [ 635.951893][ T8504] ? lock_acquire+0x115/0x350 [ 635.951972][ T8504] ? tun_get_user+0x23ba/0x44d0 [ 635.952029][ T8504] ? __local_bh_enable_ip+0xd6/0x140 [ 635.952112][ T8504] ? tun_get_user+0x27b0/0x44d0 [ 635.952170][ T8504] tun_get_user+0x2be0/0x44d0 [ 635.952268][ T8504] ? tun_get_user+0x27b0/0x44d0 [ 635.952347][ T8504] ? aa_file_perm+0x4ed/0x15f0 [ 635.952425][ T8504] ? __pfx_tun_get_user+0x10/0x10 [ 635.952491][ T8504] ? __lock_acquire+0x747/0x2de0 [ 635.952561][ T8504] ? kstrtoull+0x137/0x1d0 [ 635.952671][ T8504] ? ref_tracker_alloc+0x341/0x4b0 [ 635.952735][ T8504] ? lock_acquire+0x115/0x350 [ 635.952799][ T8504] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 635.952874][ T8504] ? lock_acquire+0x115/0x350 [ 635.952913][ T8504] ? tun_get+0x1c/0x2f0 [ 635.952939][ T8504] ? tun_get+0x1c/0x2f0 [ 635.952960][ T8504] ? tun_get+0x1c/0x2f0 [ 635.952998][ T8504] tun_chr_write_iter+0x113/0x200 [ 635.953024][ T8504] vfs_write+0x612/0xba0 [ 635.953081][ T8504] ? __pfx_vfs_write+0x10/0x10 [ 635.953122][ T8504] ? do_sys_openat2+0x14e/0x200 [ 635.953204][ T8504] ksys_write+0x150/0x270 [ 635.953287][ T8504] ? __pfx_ksys_write+0x10/0x10 [ 635.953409][ T8504] __do_fast_syscall_32+0x27a/0x6a0 [ 635.953483][ T8504] ? do_fast_syscall_32+0x33/0x70 [ 635.953549][ T8504] ? irqentry_exit+0x10f/0x910 [ 635.953629][ T8504] do_fast_syscall_32+0x33/0x70 [ 635.953697][ T8504] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 635.953766][ T8504] RIP: 0023:0xf7d7f0ec [ 635.953827][ T8504] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 635.953875][ T8504] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 635.953947][ T8504] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 635.953982][ T8504] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 635.954023][ T8504] RBP: 00000000000000f9 R08: 0000000000000000 R09: 0000000000000000 [ 635.954067][ T8504] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 635.954101][ T8504] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 635.954190][ T8504] [ 635.989527][ T8504] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 636.065423][ T8504] batman_adv: batadv0: Removing interface: syzkaller0 [ 636.372977][ T8505] batman_adv: batadv0: Adding interface: syzkaller0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 636.373044][ T8505] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 636.373160][ T8505] batman_adv: batadv0: Interface activated: syzkaller0 [ 636.377371][ T8505] FAULT_INJECTION: forcing a failure. [ 636.377371][ T8505] name failslab, interval 1, probability 0, space 0, times 0 executing program [ 636.377496][ T8505] CPU: 1 UID: 0 PID: 8505 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 636.377584][ T8505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 636.377641][ T8505] Call Trace: [ 636.377672][ T8505] [ 636.377704][ T8505] dump_stack_lvl+0xe8/0x150 [ 636.377801][ T8505] should_fail_ex+0x410/0x560 [ 636.377887][ T8505] should_failslab+0xa8/0x100 [ 636.377983][ T8505] __kmalloc_cache_noprof+0xa3/0x600 [ 636.378050][ T8505] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 636.378146][ T8505] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 636.378255][ T8505] batadv_neigh_ifinfo_new+0x95/0x300 [ 636.378365][ T8505] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 636.378503][ T8505] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 636.378615][ T8505] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 636.378714][ T8505] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 636.378819][ T8505] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 636.378905][ T8505] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 636.378999][ T8505] batadv_iv_ogm_receive+0xc13/0x1740 [ 636.379073][ T8505] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 636.379120][ T8505] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 636.379250][ T8505] ? rcu_is_watching+0x16/0xb0 [ 636.379332][ T8505] ? __alloc_skb+0x27a/0x7a0 [ 636.379396][ T8505] ? trace_kmem_cache_alloc+0x29/0xe0 [ 636.379513][ T8505] batadv_batman_skb_recv+0x4b6/0x870 [ 636.379582][ T8505] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 636.379665][ T8505] ? netif_receive_skb+0x102/0xbf0 [ 636.379752][ T8505] ? netif_receive_skb+0x102/0xbf0 [ 636.379832][ T8505] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 636.379897][ T8505] netif_receive_skb+0x4af/0xbf0 [ 636.379992][ T8505] ? __pfx_netif_receive_skb+0x10/0x10 [ 636.380026][ T8505] ? tun_rx_batched+0x185/0x790 [ 636.380049][ T8505] tun_rx_batched+0x1de/0x790 [ 636.380074][ T8505] ? __pfx_tun_rx_batched+0x10/0x10 [ 636.380115][ T8505] ? lock_acquire+0x115/0x350 [ 636.380193][ T8505] ? tun_get_user+0x23ba/0x44d0 [ 636.380256][ T8505] ? __local_bh_enable_ip+0xd6/0x140 [ 636.380332][ T8505] ? tun_get_user+0x27b0/0x44d0 [ 636.380393][ T8505] tun_get_user+0x2be0/0x44d0 [ 636.380499][ T8505] ? tun_get_user+0x27b0/0x44d0 [ 636.380609][ T8505] ? aa_file_perm+0x4ed/0x15f0 [ 636.380699][ T8505] ? __pfx_tun_get_user+0x10/0x10 [ 636.380772][ T8505] ? __lock_acquire+0x747/0x2de0 [ 636.380846][ T8505] ? kstrtoull+0x137/0x1d0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 636.380955][ T8505] ? ref_tracker_alloc+0x341/0x4b0 [ 636.381045][ T8505] ? lock_acquire+0x115/0x350 [ 636.381110][ T8505] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 636.381186][ T8505] ? lock_acquire+0x115/0x350 [ 636.381242][ T8505] ? tun_get+0x1c/0x2f0 [ 636.381316][ T8505] ? tun_get+0x1c/0x2f0 [ 636.381379][ T8505] ? tun_get+0x1c/0x2f0 [ 636.381446][ T8505] tun_chr_write_iter+0x113/0x200 [ 636.381523][ T8505] vfs_write+0x612/0xba0 [ 636.381640][ T8505] ? __pfx_vfs_write+0x10/0x10 executing program [ 636.381757][ T8505] ? do_sys_openat2+0x14e/0x200 [ 636.381863][ T8505] ksys_write+0x150/0x270 [ 636.381952][ T8505] ? __pfx_ksys_write+0x10/0x10 [ 636.382074][ T8505] __do_fast_syscall_32+0x27a/0x6a0 [ 636.382164][ T8505] ? do_fast_syscall_32+0x33/0x70 [ 636.382245][ T8505] ? irqentry_exit+0x10f/0x910 [ 636.382300][ T8505] ? trace_irq_disable+0x3b/0x140 [ 636.382375][ T8505] do_fast_syscall_32+0x33/0x70 [ 636.382455][ T8505] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 636.382531][ T8505] RIP: 0023:0xf7d7f0ec [ 636.382592][ T8505] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 636.382645][ T8505] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 636.382715][ T8505] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 636.382758][ T8505] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 636.382792][ T8505] RBP: 00000000000000fa R08: 0000000000000000 R09: 0000000000000000 [ 636.382828][ T8505] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 636.382869][ T8505] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 636.382950][ T8505] [ 636.394310][ T8505] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 636.471684][ T8505] batman_adv: batadv0: Removing interface: syzkaller0 [ 636.756829][ T8506] batman_adv: batadv0: Adding interface: syzkaller0 [ 636.756886][ T8506] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 636.756982][ T8506] batman_adv: batadv0: Interface activated: syzkaller0 [ 636.760746][ T8506] FAULT_INJECTION: forcing a failure. [ 636.760746][ T8506] name failslab, interval 1, probability 0, space 0, times 0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 636.760779][ T8506] CPU: 0 UID: 0 PID: 8506 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 636.760805][ T8506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 636.760819][ T8506] Call Trace: [ 636.760829][ T8506] [ 636.760854][ T8506] dump_stack_lvl+0xe8/0x150 [ 636.760894][ T8506] should_fail_ex+0x410/0x560 [ 636.760926][ T8506] should_failslab+0xa8/0x100 [ 636.760963][ T8506] __kmalloc_cache_noprof+0xa3/0x600 [ 636.760988][ T8506] ? batadv_neigh_ifinfo_new+0x95/0x300 executing program [ 636.761024][ T8506] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 636.761067][ T8506] batadv_neigh_ifinfo_new+0x95/0x300 [ 636.761108][ T8506] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 636.761161][ T8506] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 636.761205][ T8506] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 636.761243][ T8506] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 636.761284][ T8506] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 636.761317][ T8506] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 636.761364][ T8506] batadv_iv_ogm_receive+0xc13/0x1740 [ 636.761413][ T8506] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 636.761463][ T8506] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 636.761505][ T8506] ? rcu_is_watching+0x16/0xb0 [ 636.761531][ T8506] ? __alloc_skb+0x27a/0x7a0 [ 636.761555][ T8506] ? trace_kmem_cache_alloc+0x29/0xe0 [ 636.761600][ T8506] batadv_batman_skb_recv+0x4b6/0x870 [ 636.761628][ T8506] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 636.761658][ T8506] ? netif_receive_skb+0x102/0xbf0 [ 636.761692][ T8506] ? netif_receive_skb+0x102/0xbf0 [ 636.761727][ T8506] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 636.761753][ T8506] netif_receive_skb+0x4af/0xbf0 [ 636.761796][ T8506] ? __pfx_netif_receive_skb+0x10/0x10 [ 636.761838][ T8506] ? tun_rx_batched+0x185/0x790 [ 636.761866][ T8506] tun_rx_batched+0x1de/0x790 [ 636.761898][ T8506] ? __pfx_tun_rx_batched+0x10/0x10 [ 636.761922][ T8506] ? lock_acquire+0x115/0x350 [ 636.761953][ T8506] ? tun_get_user+0x23ba/0x44d0 [ 636.761976][ T8506] ? __local_bh_enable_ip+0xd6/0x140 [ 636.762008][ T8506] ? tun_get_user+0x27b0/0x44d0 [ 636.762034][ T8506] tun_get_user+0x2be0/0x44d0 [ 636.762073][ T8506] ? tun_get_user+0x27b0/0x44d0 [ 636.762103][ T8506] ? aa_file_perm+0x4ed/0x15f0 [ 636.762133][ T8506] ? __pfx_tun_get_user+0x10/0x10 [ 636.762160][ T8506] ? __lock_acquire+0x747/0x2de0 [ 636.762187][ T8506] ? kstrtoull+0x137/0x1d0 [ 636.762227][ T8506] ? ref_tracker_alloc+0x341/0x4b0 [ 636.762252][ T8506] ? lock_acquire+0x115/0x350 [ 636.762275][ T8506] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 636.762303][ T8506] ? lock_acquire+0x115/0x350 [ 636.762326][ T8506] ? tun_get+0x1c/0x2f0 [ 636.762356][ T8506] ? tun_get+0x1c/0x2f0 [ 636.762379][ T8506] ? tun_get+0x1c/0x2f0 [ 636.762408][ T8506] tun_chr_write_iter+0x113/0x200 [ 636.762434][ T8506] vfs_write+0x612/0xba0 [ 636.762478][ T8506] ? __pfx_vfs_write+0x10/0x10 [ 636.762533][ T8506] ? do_sys_openat2+0x14e/0x200 [ 636.762573][ T8506] ksys_write+0x150/0x270 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 636.762611][ T8506] ? __pfx_ksys_write+0x10/0x10 [ 636.762656][ T8506] __do_fast_syscall_32+0x27a/0x6a0 [ 636.762685][ T8506] ? do_fast_syscall_32+0x33/0x70 [ 636.762712][ T8506] ? irqentry_exit+0x10f/0x910 [ 636.762734][ T8506] ? trace_irq_disable+0x3b/0x140 [ 636.762763][ T8506] do_fast_syscall_32+0x33/0x70 [ 636.762789][ T8506] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 636.762818][ T8506] RIP: 0023:0xf7d7f0ec executing program [ 636.762839][ T8506] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 636.762860][ T8506] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 636.762885][ T8506] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 636.762901][ T8506] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 636.762916][ T8506] RBP: 00000000000000fb R08: 0000000000000000 R09: 0000000000000000 [ 636.762931][ T8506] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 636.762945][ T8506] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 636.762979][ T8506] [ 636.776421][ T8506] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 636.832517][ T8506] batman_adv: batadv0: Removing interface: syzkaller0 [ 637.089638][ T8507] batman_adv: batadv0: Adding interface: syzkaller0 [ 637.089765][ T8507] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 637.089868][ T8507] batman_adv: batadv0: Interface activated: syzkaller0 [ 637.094786][ T8507] FAULT_INJECTION: forcing a failure. [ 637.094786][ T8507] name failslab, interval 1, probability 0, space 0, times 0 [ 637.094899][ T8507] CPU: 1 UID: 0 PID: 8507 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 637.094967][ T8507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 637.094988][ T8507] Call Trace: [ 637.094996][ T8507] [ 637.095005][ T8507] dump_stack_lvl+0xe8/0x150 [ 637.095042][ T8507] should_fail_ex+0x410/0x560 [ 637.095131][ T8507] should_failslab+0xa8/0x100 [ 637.095220][ T8507] __kmalloc_cache_noprof+0xa3/0x600 [ 637.095271][ T8507] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 637.095375][ T8507] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 637.095795][ T8507] batadv_neigh_ifinfo_new+0x95/0x300 [ 637.095950][ T8507] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 637.096058][ T8507] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 637.096106][ T8507] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 637.096191][ T8507] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 637.096349][ T8507] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 637.096448][ T8507] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 637.096560][ T8507] batadv_iv_ogm_receive+0xc13/0x1740 [ 637.096718][ T8507] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 637.096831][ T8507] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 637.096939][ T8507] ? rcu_is_watching+0x16/0xb0 [ 637.097016][ T8507] ? __alloc_skb+0x27a/0x7a0 [ 637.097085][ T8507] ? trace_kmem_cache_alloc+0x29/0xe0 [ 637.097191][ T8507] batadv_batman_skb_recv+0x4b6/0x870 [ 637.097273][ T8507] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 637.097363][ T8507] ? netif_receive_skb+0x102/0xbf0 [ 637.097462][ T8507] ? netif_receive_skb+0x102/0xbf0 [ 637.097580][ T8507] ? __pfx_batadv_batman_skb_recv+0x10/0x10 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed executing program [ 637.097649][ T8507] netif_receive_skb+0x4af/0xbf0 [ 637.097767][ T8507] ? __pfx_netif_receive_skb+0x10/0x10 [ 637.097884][ T8507] ? tun_rx_batched+0x185/0x790 [ 637.097965][ T8507] tun_rx_batched+0x1de/0x790 [ 637.098080][ T8507] ? __pfx_tun_rx_batched+0x10/0x10 [ 637.098146][ T8507] ? lock_acquire+0x115/0x350 [ 637.098233][ T8507] ? tun_get_user+0x23ba/0x44d0 [ 637.098305][ T8507] ? __local_bh_enable_ip+0xd6/0x140 [ 637.098384][ T8507] ? tun_get_user+0x27b0/0x44d0 [ 637.098459][ T8507] tun_get_user+0x2be0/0x44d0 [ 637.098572][ T8507] ? tun_get_user+0x27b0/0x44d0 [ 637.098665][ T8507] ? aa_file_perm+0x4ed/0x15f0 [ 637.098751][ T8507] ? __pfx_tun_get_user+0x10/0x10 [ 637.098819][ T8507] ? __lock_acquire+0x747/0x2de0 [ 637.098890][ T8507] ? kstrtoull+0x137/0x1d0 [ 637.099005][ T8507] ? ref_tracker_alloc+0x341/0x4b0 [ 637.099064][ T8507] ? lock_acquire+0x115/0x350 [ 637.099120][ T8507] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 637.099201][ T8507] ? lock_acquire+0x115/0x350 [ 637.099257][ T8507] ? tun_get+0x1c/0x2f0 [ 637.099335][ T8507] ? tun_get+0x1c/0x2f0 [ 637.099413][ T8507] ? tun_get+0x1c/0x2f0 [ 637.099494][ T8507] tun_chr_write_iter+0x113/0x200 [ 637.099570][ T8507] vfs_write+0x612/0xba0 [ 637.099681][ T8507] ? __pfx_vfs_write+0x10/0x10 [ 637.099802][ T8507] ? do_sys_openat2+0x14e/0x200 [ 637.099900][ T8507] ksys_write+0x150/0x270 [ 637.099996][ T8507] ? __pfx_ksys_write+0x10/0x10 [ 637.100101][ T8507] __do_fast_syscall_32+0x27a/0x6a0 [ 637.100177][ T8507] ? do_fast_syscall_32+0x33/0x70 [ 637.100243][ T8507] ? irqentry_exit+0x10f/0x910 [ 637.100306][ T8507] ? trace_irq_disable+0x3b/0x140 [ 637.100374][ T8507] do_fast_syscall_32+0x33/0x70 [ 637.100441][ T8507] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 637.100517][ T8507] RIP: 0023:0xf7d7f0ec [ 637.100582][ T8507] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 637.100643][ T8507] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 637.100722][ T8507] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 637.100765][ T8507] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 637.100828][ T8507] RBP: 00000000000000fc R08: 0000000000000000 R09: 0000000000000000 [ 637.100863][ T8507] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 637.100903][ T8507] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 637.100992][ T8507] [ 637.121911][ T8507] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 637.217500][ T8507] batman_adv: batadv0: Removing interface: syzkaller0 [ 637.524744][ T8508] batman_adv: batadv0: Adding interface: syzkaller0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 637.524799][ T8508] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 637.524964][ T8508] batman_adv: batadv0: Interface activated: syzkaller0 [ 637.537532][ T8508] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 637.604405][ T8508] batman_adv: batadv0: Removing interface: syzkaller0 [ 637.894307][ T8509] batman_adv: batadv0: Adding interface: syzkaller0 executing program [ 637.894362][ T8509] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 637.894462][ T8509] batman_adv: batadv0: Interface activated: syzkaller0 [ 637.900107][ T8509] FAULT_INJECTION: forcing a failure. [ 637.900107][ T8509] name failslab, interval 1, probability 0, space 0, times 0 [ 637.900230][ T8509] CPU: 1 UID: 0 PID: 8509 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 637.900299][ T8509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 637.900343][ T8509] Call Trace: [ 637.900366][ T8509] [ 637.900405][ T8509] dump_stack_lvl+0xe8/0x150 [ 637.900508][ T8509] should_fail_ex+0x410/0x560 [ 637.900594][ T8509] should_failslab+0xa8/0x100 [ 637.900671][ T8509] __kmalloc_cache_noprof+0xa3/0x600 [ 637.900739][ T8509] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 637.900840][ T8509] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 637.900943][ T8509] batadv_neigh_ifinfo_new+0x95/0x300 [ 637.901052][ T8509] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 637.901158][ T8509] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 637.901200][ T8509] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 637.901311][ T8509] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 637.901380][ T8509] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 637.901410][ T8509] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 637.901438][ T8509] batadv_iv_ogm_receive+0xc13/0x1740 [ 637.901543][ T8509] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 637.901603][ T8509] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 637.901710][ T8509] ? rcu_is_watching+0x16/0xb0 [ 637.901787][ T8509] ? __alloc_skb+0x27a/0x7a0 [ 637.901858][ T8509] ? trace_kmem_cache_alloc+0x29/0xe0 [ 637.902029][ T8509] batadv_batman_skb_recv+0x4b6/0x870 [ 637.902115][ T8509] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 637.902199][ T8509] ? netif_receive_skb+0x102/0xbf0 [ 637.902287][ T8509] ? netif_receive_skb+0x102/0xbf0 [ 637.902396][ T8509] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 637.902475][ T8509] netif_receive_skb+0x4af/0xbf0 [ 637.902594][ T8509] ? __pfx_netif_receive_skb+0x10/0x10 [ 637.902702][ T8509] ? tun_rx_batched+0x185/0x790 [ 637.902785][ T8509] tun_rx_batched+0x1de/0x790 [ 637.902885][ T8509] ? __pfx_tun_rx_batched+0x10/0x10 [ 637.902943][ T8509] ? lock_acquire+0x115/0x350 [ 637.903021][ T8509] ? tun_get_user+0x23ba/0x44d0 [ 637.903096][ T8509] ? __local_bh_enable_ip+0xd6/0x140 [ 637.903173][ T8509] ? tun_get_user+0x27b0/0x44d0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 637.903241][ T8509] tun_get_user+0x2be0/0x44d0 [ 637.903341][ T8509] ? tun_get_user+0x27b0/0x44d0 [ 637.903428][ T8509] ? aa_file_perm+0x4ed/0x15f0 [ 637.903513][ T8509] ? __pfx_tun_get_user+0x10/0x10 [ 637.903600][ T8509] ? __lock_acquire+0x747/0x2de0 [ 637.903682][ T8509] ? kstrtoull+0x137/0x1d0 [ 637.903791][ T8509] ? ref_tracker_alloc+0x341/0x4b0 [ 637.903866][ T8509] ? lock_acquire+0x115/0x350 [ 637.903917][ T8509] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 637.904003][ T8509] ? lock_acquire+0x115/0x350 executing program [ 637.904067][ T8509] ? tun_get+0x1c/0x2f0 [ 637.904150][ T8509] ? tun_get+0x1c/0x2f0 [ 637.904214][ T8509] ? tun_get+0x1c/0x2f0 [ 637.904313][ T8509] tun_chr_write_iter+0x113/0x200 [ 637.904381][ T8509] vfs_write+0x612/0xba0 [ 637.904511][ T8509] ? __pfx_vfs_write+0x10/0x10 [ 637.904646][ T8509] ? do_sys_openat2+0x14e/0x200 [ 637.904746][ T8509] ksys_write+0x150/0x270 [ 637.904843][ T8509] ? __pfx_ksys_write+0x10/0x10 [ 637.904957][ T8509] __do_fast_syscall_32+0x27a/0x6a0 [ 637.905035][ T8509] ? do_fast_syscall_32+0x33/0x70 [ 637.905101][ T8509] ? irqentry_exit+0x10f/0x910 [ 637.905156][ T8509] ? trace_irq_disable+0x3b/0x140 [ 637.905231][ T8509] do_fast_syscall_32+0x33/0x70 [ 637.905304][ T8509] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 637.905382][ T8509] RIP: 0023:0xf7d7f0ec [ 637.905456][ T8509] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 637.905499][ T8509] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 637.905583][ T8509] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 637.905620][ T8509] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 637.905669][ T8509] RBP: 00000000000000fe R08: 0000000000000000 R09: 0000000000000000 [ 637.905704][ T8509] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 637.905740][ T8509] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 637.905830][ T8509] [ 637.916759][ T8509] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 638.003622][ T8509] batman_adv: batadv0: Removing interface: syzkaller0 [ 638.285069][ T8510] batman_adv: batadv0: Adding interface: syzkaller0 [ 638.285123][ T8510] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 638.285217][ T8510] batman_adv: batadv0: Interface activated: syzkaller0 [ 638.292901][ T8510] FAULT_INJECTION: forcing a failure. [ 638.292901][ T8510] name failslab, interval 1, probability 0, space 0, times 0 [ 638.293001][ T8510] CPU: 1 UID: 0 PID: 8510 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 638.293076][ T8510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 638.293111][ T8510] Call Trace: [ 638.293135][ T8510] [ 638.293158][ T8510] dump_stack_lvl+0xe8/0x150 [ 638.293285][ T8510] should_fail_ex+0x410/0x560 [ 638.293386][ T8510] should_failslab+0xa8/0x100 [ 638.293464][ T8510] __kmalloc_cache_noprof+0xa3/0x600 [ 638.293537][ T8510] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 638.293634][ T8510] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 638.293743][ T8510] batadv_neigh_ifinfo_new+0x95/0x300 [ 638.293847][ T8510] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 638.293998][ T8510] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 638.294117][ T8510] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 638.294214][ T8510] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 638.294316][ T8510] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 638.294412][ T8510] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 638.294512][ T8510] batadv_iv_ogm_receive+0xc13/0x1740 [ 638.294640][ T8510] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 638.294777][ T8510] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 executing program [ 638.294887][ T8510] ? rcu_is_watching+0x16/0xb0 [ 638.294953][ T8510] ? __alloc_skb+0x27a/0x7a0 [ 638.295017][ T8510] ? trace_kmem_cache_alloc+0x29/0xe0 [ 638.295132][ T8510] batadv_batman_skb_recv+0x4b6/0x870 [ 638.295208][ T8510] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 638.295291][ T8510] ? netif_receive_skb+0x102/0xbf0 [ 638.295400][ T8510] ? netif_receive_skb+0x102/0xbf0 [ 638.295487][ T8510] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 638.295554][ T8510] netif_receive_skb+0x4af/0xbf0 [ 638.295665][ T8510] ? __pfx_netif_receive_skb+0x10/0x10 [ 638.295771][ T8510] ? tun_rx_batched+0x185/0x790 [ 638.295843][ T8510] tun_rx_batched+0x1de/0x790 [ 638.295923][ T8510] ? __pfx_tun_rx_batched+0x10/0x10 [ 638.295997][ T8510] ? lock_acquire+0x115/0x350 [ 638.296116][ T8510] ? tun_get_user+0x23ba/0x44d0 [ 638.296186][ T8510] ? __local_bh_enable_ip+0xd6/0x140 [ 638.296282][ T8510] ? tun_get_user+0x27b0/0x44d0 [ 638.296359][ T8510] tun_get_user+0x2be0/0x44d0 [ 638.296466][ T8510] ? tun_get_user+0x27b0/0x44d0 [ 638.296543][ T8510] ? aa_file_perm+0x4ed/0x15f0 [ 638.296620][ T8510] ? __pfx_tun_get_user+0x10/0x10 [ 638.296688][ T8510] ? __lock_acquire+0x747/0x2de0 [ 638.296748][ T8510] ? kstrtoull+0x137/0x1d0 [ 638.296852][ T8510] ? ref_tracker_alloc+0x341/0x4b0 [ 638.296918][ T8510] ? lock_acquire+0x115/0x350 [ 638.296991][ T8510] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 638.297075][ T8510] ? lock_acquire+0x115/0x350 [ 638.297131][ T8510] ? tun_get+0x1c/0x2f0 [ 638.297215][ T8510] ? tun_get+0x1c/0x2f0 [ 638.297271][ T8510] ? tun_get+0x1c/0x2f0 [ 638.297357][ T8510] tun_chr_write_iter+0x113/0x200 [ 638.297451][ T8510] vfs_write+0x612/0xba0 [ 638.297567][ T8510] ? __pfx_vfs_write+0x10/0x10 [ 638.297687][ T8510] ? do_sys_openat2+0x14e/0x200 [ 638.297793][ T8510] ksys_write+0x150/0x270 [ 638.297885][ T8510] ? __pfx_ksys_write+0x10/0x10 [ 638.298006][ T8510] __do_fast_syscall_32+0x27a/0x6a0 [ 638.298082][ T8510] ? do_fast_syscall_32+0x33/0x70 [ 638.298151][ T8510] ? irqentry_exit+0x10f/0x910 [ 638.298215][ T8510] ? trace_irq_disable+0x3b/0x140 [ 638.298292][ T8510] do_fast_syscall_32+0x33/0x70 [ 638.298377][ T8510] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 638.298452][ T8510] RIP: 0023:0xf7d7f0ec [ 638.298508][ T8510] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed executing program [ 638.298563][ T8510] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 638.298629][ T8510] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 638.298671][ T8510] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 638.298711][ T8510] RBP: 00000000000000ff R08: 0000000000000000 R09: 0000000000000000 [ 638.298746][ T8510] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 638.298787][ T8510] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 638.298877][ T8510] [ 638.320657][ T8510] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 638.398735][ T8510] batman_adv: batadv0: Removing interface: syzkaller0 [ 638.592120][ T8511] batman_adv: batadv0: Adding interface: syzkaller0 [ 638.592193][ T8511] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 638.592284][ T8511] batman_adv: batadv0: Interface activated: syzkaller0 [ 638.596339][ T8511] FAULT_INJECTION: forcing a failure. [ 638.596339][ T8511] name failslab, interval 1, probability 0, space 0, times 0 [ 638.596374][ T8511] CPU: 0 UID: 0 PID: 8511 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 638.596399][ T8511] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 638.596412][ T8511] Call Trace: [ 638.596422][ T8511] [ 638.596432][ T8511] dump_stack_lvl+0xe8/0x150 [ 638.596472][ T8511] should_fail_ex+0x410/0x560 [ 638.596503][ T8511] should_failslab+0xa8/0x100 [ 638.596557][ T8511] __kmalloc_cache_noprof+0xa3/0x600 [ 638.596629][ T8511] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 638.596766][ T8511] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 638.596871][ T8511] batadv_neigh_ifinfo_new+0x95/0x300 [ 638.596977][ T8511] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 638.597110][ T8511] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 638.597226][ T8511] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 638.597324][ T8511] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 638.597443][ T8511] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 638.597530][ T8511] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 638.597639][ T8511] batadv_iv_ogm_receive+0xc13/0x1740 [ 638.597769][ T8511] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 638.597886][ T8511] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 638.597987][ T8511] ? rcu_is_watching+0x16/0xb0 [ 638.598070][ T8511] ? __alloc_skb+0x27a/0x7a0 [ 638.598149][ T8511] ? trace_kmem_cache_alloc+0x29/0xe0 [ 638.598256][ T8511] batadv_batman_skb_recv+0x4b6/0x870 [ 638.598326][ T8511] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 638.598415][ T8511] ? netif_receive_skb+0x102/0xbf0 [ 638.598510][ T8511] ? netif_receive_skb+0x102/0xbf0 [ 638.598598][ T8511] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 638.598671][ T8511] netif_receive_skb+0x4af/0xbf0 executing program [ 638.598779][ T8511] ? __pfx_netif_receive_skb+0x10/0x10 [ 638.598874][ T8511] ? tun_rx_batched+0x185/0x790 [ 638.598949][ T8511] tun_rx_batched+0x1de/0x790 [ 638.599034][ T8511] ? __pfx_tun_rx_batched+0x10/0x10 [ 638.599099][ T8511] ? lock_acquire+0x115/0x350 [ 638.599184][ T8511] ? tun_get_user+0x23ba/0x44d0 [ 638.599240][ T8511] ? __local_bh_enable_ip+0xd6/0x140 [ 638.599324][ T8511] ? tun_get_user+0x27b0/0x44d0 [ 638.599409][ T8511] tun_get_user+0x2be0/0x44d0 [ 638.599532][ T8511] ? tun_get_user+0x27b0/0x44d0 [ 638.599616][ T8511] ? aa_file_perm+0x4ed/0x15f0 [ 638.599691][ T8511] ? __pfx_tun_get_user+0x10/0x10 [ 638.599759][ T8511] ? __lock_acquire+0x747/0x2de0 [ 638.599833][ T8511] ? kstrtoull+0x137/0x1d0 [ 638.599945][ T8511] ? ref_tracker_alloc+0x341/0x4b0 [ 638.600010][ T8511] ? lock_acquire+0x115/0x350 [ 638.600074][ T8511] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 638.600151][ T8511] ? lock_acquire+0x115/0x350 [ 638.600214][ T8511] ? tun_get+0x1c/0x2f0 [ 638.600292][ T8511] ? tun_get+0x1c/0x2f0 [ 638.600389][ T8511] ? tun_get+0x1c/0x2f0 [ 638.600466][ T8511] tun_chr_write_iter+0x113/0x200 [ 638.600535][ T8511] vfs_write+0x612/0xba0 [ 638.600651][ T8511] ? __pfx_vfs_write+0x10/0x10 [ 638.600781][ T8511] ? do_sys_openat2+0x14e/0x200 [ 638.600892][ T8511] ksys_write+0x150/0x270 [ 638.600998][ T8511] ? __pfx_ksys_write+0x10/0x10 [ 638.601116][ T8511] __do_fast_syscall_32+0x27a/0x6a0 [ 638.601192][ T8511] ? do_fast_syscall_32+0x33/0x70 [ 638.601265][ T8511] ? irqentry_exit+0x10f/0x910 [ 638.601321][ T8511] ? trace_irq_disable+0x3b/0x140 [ 638.601405][ T8511] do_fast_syscall_32+0x33/0x70 [ 638.601481][ T8511] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 638.601558][ T8511] RIP: 0023:0xf7d7f0ec [ 638.601611][ T8511] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 638.601665][ T8511] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 638.601732][ T8511] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 638.601774][ T8511] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 638.601819][ T8511] RBP: 0000000000000100 R08: 0000000000000000 R09: 0000000000000000 [ 638.601847][ T8511] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 638.601887][ T8511] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 638.601961][ T8511] [ 638.609985][ T8511] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 638.692266][ T8511] batman_adv: batadv0: Removing interface: syzkaller0 [ 638.941406][ T8512] batman_adv: batadv0: Adding interface: syzkaller0 [ 638.941471][ T8512] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 638.941568][ T8512] batman_adv: batadv0: Interface activated: syzkaller0 [ 638.946446][ T8512] FAULT_INJECTION: forcing a failure. [ 638.946446][ T8512] name failslab, interval 1, probability 0, space 0, times 0 [ 638.946523][ T8512] CPU: 0 UID: 0 PID: 8512 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 638.946586][ T8512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 638.946633][ T8512] Call Trace: [ 638.946663][ T8512] [ 638.946715][ T8512] dump_stack_lvl+0xe8/0x150 [ 638.946811][ T8512] should_fail_ex+0x410/0x560 [ 638.946896][ T8512] should_failslab+0xa8/0x100 [ 638.946980][ T8512] __kmalloc_cache_noprof+0xa3/0x600 [ 638.947046][ T8512] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 638.947148][ T8512] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 638.947258][ T8512] batadv_neigh_ifinfo_new+0x95/0x300 [ 638.947372][ T8512] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 638.947512][ T8512] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 executing program [ 638.947620][ T8512] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 638.947724][ T8512] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 638.947817][ T8512] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 638.947911][ T8512] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 638.947984][ T8512] batadv_iv_ogm_receive+0xc13/0x1740 [ 638.948029][ T8512] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 638.948155][ T8512] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 638.948466][ T8512] ? rcu_is_watching+0x16/0xb0 [ 638.948543][ T8512] ? __alloc_skb+0x27a/0x7a0 [ 638.948608][ T8512] ? trace_kmem_cache_alloc+0x29/0xe0 [ 638.948716][ T8512] batadv_batman_skb_recv+0x4b6/0x870 [ 638.948966][ T8512] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 638.949097][ T8512] ? netif_receive_skb+0x102/0xbf0 [ 638.949197][ T8512] ? netif_receive_skb+0x102/0xbf0 [ 638.949588][ T8512] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 638.949724][ T8512] netif_receive_skb+0x4af/0xbf0 [ 638.949797][ T8512] ? __pfx_netif_receive_skb+0x10/0x10 [ 638.949831][ T8512] ? tun_rx_batched+0x185/0x790 [ 638.949854][ T8512] tun_rx_batched+0x1de/0x790 [ 638.949967][ T8512] ? __pfx_tun_rx_batched+0x10/0x10 [ 638.950041][ T8512] ? lock_acquire+0x115/0x350 [ 638.950130][ T8512] ? tun_get_user+0x23ba/0x44d0 [ 638.950193][ T8512] ? __local_bh_enable_ip+0xd6/0x140 [ 638.950306][ T8512] ? tun_get_user+0x27b0/0x44d0 [ 638.950373][ T8512] tun_get_user+0x2be0/0x44d0 [ 638.950482][ T8512] ? tun_get_user+0x27b0/0x44d0 [ 638.950561][ T8512] ? aa_file_perm+0x4ed/0x15f0 [ 638.950620][ T8512] ? __pfx_tun_get_user+0x10/0x10 [ 638.950692][ T8512] ? __lock_acquire+0x747/0x2de0 [ 638.950771][ T8512] ? kstrtoull+0x137/0x1d0 [ 638.950895][ T8512] ? ref_tracker_alloc+0x341/0x4b0 [ 638.950958][ T8512] ? lock_acquire+0x115/0x350 [ 638.951068][ T8512] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 638.951168][ T8512] ? lock_acquire+0x115/0x350 [ 638.951235][ T8512] ? tun_get+0x1c/0x2f0 [ 638.951310][ T8512] ? tun_get+0x1c/0x2f0 [ 638.951368][ T8512] ? tun_get+0x1c/0x2f0 [ 638.951556][ T8512] tun_chr_write_iter+0x113/0x200 [ 638.951643][ T8512] vfs_write+0x612/0xba0 [ 638.951748][ T8512] ? __pfx_vfs_write+0x10/0x10 [ 638.951788][ T8512] ? do_sys_openat2+0x14e/0x200 [ 638.951822][ T8512] ksys_write+0x150/0x270 [ 638.951854][ T8512] ? __pfx_ksys_write+0x10/0x10 [ 638.951977][ T8512] __do_fast_syscall_32+0x27a/0x6a0 [ 638.952066][ T8512] ? do_fast_syscall_32+0x33/0x70 [ 638.952142][ T8512] ? irqentry_exit+0x10f/0x910 [ 638.952208][ T8512] ? trace_irq_disable+0x3b/0x140 [ 638.952444][ T8512] do_fast_syscall_32+0x33/0x70 [ 638.952531][ T8512] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 638.952630][ T8512] RIP: 0023:0xf7d7f0ec [ 638.952695][ T8512] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 638.952745][ T8512] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 638.952820][ T8512] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 638.952863][ T8512] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 638.952907][ T8512] RBP: 0000000000000101 R08: 0000000000000000 R09: 0000000000000000 [ 638.952949][ T8512] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 638.952983][ T8512] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 638.953076][ T8512] executing program [ 638.981028][ T8512] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 639.056727][ T8512] batman_adv: batadv0: Removing interface: syzkaller0 [ 639.252400][ T8513] batman_adv: batadv0: Adding interface: syzkaller0 [ 639.252449][ T8513] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 639.252541][ T8513] batman_adv: batadv0: Interface activated: syzkaller0 [ 639.256905][ T8513] FAULT_INJECTION: forcing a failure. [ 639.256905][ T8513] name failslab, interval 1, probability 0, space 0, times 0 [ 639.257013][ T8513] CPU: 0 UID: 0 PID: 8513 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 639.257078][ T8513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 639.257120][ T8513] Call Trace: [ 639.257145][ T8513] [ 639.257169][ T8513] dump_stack_lvl+0xe8/0x150 [ 639.257287][ T8513] should_fail_ex+0x410/0x560 [ 639.257366][ T8513] should_failslab+0xa8/0x100 [ 639.257467][ T8513] __kmalloc_cache_noprof+0xa3/0x600 [ 639.257534][ T8513] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 639.257632][ T8513] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 639.257746][ T8513] batadv_neigh_ifinfo_new+0x95/0x300 [ 639.257855][ T8513] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 639.257999][ T8513] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 639.258136][ T8513] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 639.258236][ T8513] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 639.258345][ T8513] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 639.258433][ T8513] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 639.258540][ T8513] batadv_iv_ogm_receive+0xc13/0x1740 [ 639.258664][ T8513] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 639.258801][ T8513] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 639.258893][ T8513] ? rcu_is_watching+0x16/0xb0 [ 639.258973][ T8513] ? __alloc_skb+0x27a/0x7a0 [ 639.259038][ T8513] ? trace_kmem_cache_alloc+0x29/0xe0 [ 639.259140][ T8513] batadv_batman_skb_recv+0x4b6/0x870 [ 639.259217][ T8513] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 639.259302][ T8513] ? netif_receive_skb+0x102/0xbf0 [ 639.259389][ T8513] ? netif_receive_skb+0x102/0xbf0 [ 639.259480][ T8513] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 639.259556][ T8513] netif_receive_skb+0x4af/0xbf0 [ 639.259656][ T8513] ? __pfx_netif_receive_skb+0x10/0x10 [ 639.259765][ T8513] ? tun_rx_batched+0x185/0x790 [ 639.259855][ T8513] tun_rx_batched+0x1de/0x790 [ 639.259955][ T8513] ? __pfx_tun_rx_batched+0x10/0x10 [ 639.260019][ T8513] ? lock_acquire+0x115/0x350 [ 639.260106][ T8513] ? tun_get_user+0x23ba/0x44d0 [ 639.260163][ T8513] ? __local_bh_enable_ip+0xd6/0x140 [ 639.260247][ T8513] ? tun_get_user+0x27b0/0x44d0 [ 639.260313][ T8513] tun_get_user+0x2be0/0x44d0 [ 639.260443][ T8513] ? tun_get_user+0x27b0/0x44d0 [ 639.260562][ T8513] ? aa_file_perm+0x4ed/0x15f0 [ 639.260641][ T8513] ? __pfx_tun_get_user+0x10/0x10 [ 639.260710][ T8513] ? __lock_acquire+0x747/0x2de0 [ 639.260783][ T8513] ? kstrtoull+0x137/0x1d0 [ 639.260984][ T8513] ? ref_tracker_alloc+0x341/0x4b0 [ 639.261004][ T8513] ? lock_acquire+0x115/0x350 [ 639.261021][ T8513] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 639.261123][ T8513] ? lock_acquire+0x115/0x350 [ 639.261180][ T8513] ? tun_get+0x1c/0x2f0 [ 639.261257][ T8513] ? tun_get+0x1c/0x2f0 [ 639.261323][ T8513] ? tun_get+0x1c/0x2f0 [ 639.261381][ T8513] tun_chr_write_iter+0x113/0x200 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 639.261406][ T8513] vfs_write+0x612/0xba0 [ 639.261444][ T8513] ? __pfx_vfs_write+0x10/0x10 [ 639.261481][ T8513] ? do_sys_openat2+0x14e/0x200 [ 639.261514][ T8513] ksys_write+0x150/0x270 [ 639.261545][ T8513] ? __pfx_ksys_write+0x10/0x10 [ 639.261584][ T8513] __do_fast_syscall_32+0x27a/0x6a0 [ 639.261612][ T8513] ? do_fast_syscall_32+0x33/0x70 [ 639.261704][ T8513] ? irqentry_exit+0x10f/0x910 [ 639.261776][ T8513] ? trace_irq_disable+0x3b/0x140 executing program [ 639.261858][ T8513] do_fast_syscall_32+0x33/0x70 [ 639.261935][ T8513] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 639.262013][ T8513] RIP: 0023:0xf7d7f0ec [ 639.262071][ T8513] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 639.262161][ T8513] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 639.262240][ T8513] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 639.262275][ T8513] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 639.262316][ T8513] RBP: 0000000000000102 R08: 0000000000000000 R09: 0000000000000000 [ 639.262351][ T8513] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 639.262392][ T8513] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 639.262487][ T8513] [ 639.280125][ T8513] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 639.352602][ T8513] batman_adv: batadv0: Removing interface: syzkaller0 [ 639.506014][ T8514] batman_adv: batadv0: Adding interface: syzkaller0 [ 639.506047][ T8514] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 639.506202][ T8514] batman_adv: batadv0: Interface activated: syzkaller0 [ 639.514544][ T8514] FAULT_INJECTION: forcing a failure. [ 639.514544][ T8514] name failslab, interval 1, probability 0, space 0, times 0 [ 639.514582][ T8514] CPU: 0 UID: 0 PID: 8514 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 639.514608][ T8514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 639.514623][ T8514] Call Trace: [ 639.514632][ T8514] [ 639.514643][ T8514] dump_stack_lvl+0xe8/0x150 [ 639.514682][ T8514] should_fail_ex+0x410/0x560 [ 639.514713][ T8514] should_failslab+0xa8/0x100 [ 639.514744][ T8514] __kmalloc_cache_noprof+0xa3/0x600 [ 639.514780][ T8514] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 639.514825][ T8514] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 639.514868][ T8514] batadv_neigh_ifinfo_new+0x95/0x300 [ 639.514907][ T8514] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 639.514959][ T8514] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 639.515001][ T8514] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 639.515039][ T8514] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 639.515079][ T8514] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 639.515113][ T8514] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 639.515152][ T8514] batadv_iv_ogm_receive+0xc13/0x1740 [ 639.515201][ T8514] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 639.515251][ T8514] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 639.515294][ T8514] batadv_batman_skb_recv+0x4b6/0x870 [ 639.515325][ T8514] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 639.515356][ T8514] ? netif_receive_skb+0x102/0xbf0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 639.515390][ T8514] ? netif_receive_skb+0x102/0xbf0 [ 639.515424][ T8514] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 639.515450][ T8514] netif_receive_skb+0x4af/0xbf0 [ 639.515490][ T8514] ? __pfx_netif_receive_skb+0x10/0x10 [ 639.515530][ T8514] ? tun_rx_batched+0x185/0x790 [ 639.515561][ T8514] tun_rx_batched+0x1de/0x790 [ 639.515592][ T8514] ? __pfx_tun_rx_batched+0x10/0x10 [ 639.515617][ T8514] ? lock_acquire+0x115/0x350 executing program [ 639.515648][ T8514] ? tun_get_user+0x23ba/0x44d0 [ 639.515671][ T8514] ? __local_bh_enable_ip+0xd6/0x140 [ 639.515700][ T8514] ? tun_get_user+0x27b0/0x44d0 [ 639.515727][ T8514] tun_get_user+0x2be0/0x44d0 [ 639.515771][ T8514] ? tun_get_user+0x27b0/0x44d0 [ 639.515802][ T8514] ? aa_file_perm+0x4ed/0x15f0 [ 639.515832][ T8514] ? __pfx_tun_get_user+0x10/0x10 [ 639.515858][ T8514] ? __lock_acquire+0x747/0x2de0 [ 639.515885][ T8514] ? kstrtoull+0x137/0x1d0 [ 639.515944][ T8514] ? ref_tracker_alloc+0x341/0x4b0 [ 639.515972][ T8514] ? lock_acquire+0x115/0x350 [ 639.515996][ T8514] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 639.516026][ T8514] ? lock_acquire+0x115/0x350 [ 639.516049][ T8514] ? tun_get+0x1c/0x2f0 [ 639.516079][ T8514] ? tun_get+0x1c/0x2f0 [ 639.516102][ T8514] ? tun_get+0x1c/0x2f0 [ 639.516130][ T8514] tun_chr_write_iter+0x113/0x200 [ 639.516157][ T8514] vfs_write+0x612/0xba0 [ 639.516201][ T8514] ? __pfx_vfs_write+0x10/0x10 [ 639.516245][ T8514] ? do_sys_openat2+0x14e/0x200 [ 639.516285][ T8514] ksys_write+0x150/0x270 [ 639.516321][ T8514] ? __pfx_ksys_write+0x10/0x10 [ 639.516366][ T8514] __do_fast_syscall_32+0x27a/0x6a0 [ 639.516395][ T8514] ? do_fast_syscall_32+0x33/0x70 [ 639.516420][ T8514] ? irqentry_exit+0x10f/0x910 [ 639.516442][ T8514] ? trace_irq_disable+0x3b/0x140 [ 639.516470][ T8514] do_fast_syscall_32+0x33/0x70 [ 639.516497][ T8514] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 639.516526][ T8514] RIP: 0023:0xf7d7f0ec [ 639.516547][ T8514] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 639.516567][ T8514] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 639.516592][ T8514] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 639.516609][ T8514] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 639.516624][ T8514] RBP: 0000000000000103 R08: 0000000000000000 R09: 0000000000000000 [ 639.516638][ T8514] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 639.516652][ T8514] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 639.516686][ T8514] [ 639.517516][ T8514] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 639.633464][ T8514] batman_adv: batadv0: Removing interface: syzkaller0 [ 639.901345][ T8515] batman_adv: batadv0: Adding interface: syzkaller0 [ 639.901415][ T8515] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 639.901504][ T8515] batman_adv: batadv0: Interface activated: syzkaller0 [ 639.905720][ T8515] FAULT_INJECTION: forcing a failure. [ 639.905720][ T8515] name failslab, interval 1, probability 0, space 0, times 0 [ 639.905833][ T8515] CPU: 1 UID: 0 PID: 8515 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 639.906040][ T8515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 639.906105][ T8515] Call Trace: [ 639.906140][ T8515] [ 639.906173][ T8515] dump_stack_lvl+0xe8/0x150 [ 639.906283][ T8515] should_fail_ex+0x410/0x560 [ 639.906358][ T8515] should_failslab+0xa8/0x100 [ 639.906387][ T8515] __kmalloc_cache_noprof+0xa3/0x600 [ 639.906409][ T8515] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 639.906442][ T8515] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 639.906514][ T8515] batadv_neigh_ifinfo_new+0x95/0x300 [ 639.906610][ T8515] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 639.906744][ T8515] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 639.906877][ T8515] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 639.906986][ T8515] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 639.907102][ T8515] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 639.907194][ T8515] ? batadv_iv_ogm_receive+0x4b1/0x1740 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 639.907324][ T8515] batadv_iv_ogm_receive+0xc13/0x1740 [ 639.907446][ T8515] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 639.907595][ T8515] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 639.907697][ T8515] ? rcu_is_watching+0x16/0xb0 [ 639.907771][ T8515] ? __alloc_skb+0x27a/0x7a0 [ 639.907908][ T8515] ? trace_kmem_cache_alloc+0x29/0xe0 [ 639.908020][ T8515] batadv_batman_skb_recv+0x4b6/0x870 [ 639.908106][ T8515] ? __pfx_batadv_batman_skb_recv+0x10/0x10 executing program [ 639.908217][ T8515] ? netif_receive_skb+0x102/0xbf0 [ 639.908304][ T8515] ? netif_receive_skb+0x102/0xbf0 [ 639.908385][ T8515] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 639.908452][ T8515] netif_receive_skb+0x4af/0xbf0 [ 639.908548][ T8515] ? __pfx_netif_receive_skb+0x10/0x10 [ 639.908586][ T8515] ? tun_rx_batched+0x185/0x790 [ 639.908612][ T8515] tun_rx_batched+0x1de/0x790 [ 639.908642][ T8515] ? __pfx_tun_rx_batched+0x10/0x10 [ 639.908665][ T8515] ? lock_acquire+0x115/0x350 [ 639.908694][ T8515] ? tun_get_user+0x23ba/0x44d0 [ 639.908716][ T8515] ? __local_bh_enable_ip+0xd6/0x140 [ 639.908744][ T8515] ? tun_get_user+0x27b0/0x44d0 [ 639.908770][ T8515] tun_get_user+0x2be0/0x44d0 [ 639.908867][ T8515] ? tun_get_user+0x27b0/0x44d0 [ 639.908955][ T8515] ? aa_file_perm+0x4ed/0x15f0 [ 639.909032][ T8515] ? __pfx_tun_get_user+0x10/0x10 [ 639.909107][ T8515] ? __lock_acquire+0x747/0x2de0 [ 639.909174][ T8515] ? kstrtoull+0x137/0x1d0 [ 639.909292][ T8515] ? ref_tracker_alloc+0x341/0x4b0 [ 639.909346][ T8515] ? lock_acquire+0x115/0x350 [ 639.909411][ T8515] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 639.909487][ T8515] ? lock_acquire+0x115/0x350 [ 639.909544][ T8515] ? tun_get+0x1c/0x2f0 [ 639.909622][ T8515] ? tun_get+0x1c/0x2f0 [ 639.909685][ T8515] ? tun_get+0x1c/0x2f0 [ 639.909754][ T8515] tun_chr_write_iter+0x113/0x200 [ 639.909830][ T8515] vfs_write+0x612/0xba0 [ 639.909939][ T8515] ? __pfx_vfs_write+0x10/0x10 [ 639.910063][ T8515] ? do_sys_openat2+0x14e/0x200 [ 639.910161][ T8515] ksys_write+0x150/0x270 [ 639.910274][ T8515] ? __pfx_ksys_write+0x10/0x10 [ 639.910395][ T8515] __do_fast_syscall_32+0x27a/0x6a0 [ 639.910478][ T8515] ? do_fast_syscall_32+0x33/0x70 [ 639.910546][ T8515] ? irqentry_exit+0x10f/0x910 [ 639.910620][ T8515] do_fast_syscall_32+0x33/0x70 [ 639.910685][ T8515] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 639.910762][ T8515] RIP: 0023:0xf7d7f0ec [ 639.910825][ T8515] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 639.910888][ T8515] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 639.910956][ T8515] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 639.910998][ T8515] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 639.911040][ T8515] RBP: 0000000000000104 R08: 0000000000000000 R09: 0000000000000000 [ 639.911060][ T8515] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 639.911095][ T8515] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 639.911192][ T8515] [ 639.919993][ T8515] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 639.994191][ T8515] batman_adv: batadv0: Removing interface: syzkaller0 [ 640.252061][ T8516] batman_adv: batadv0: Adding interface: syzkaller0 [ 640.252106][ T8516] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 640.252201][ T8516] batman_adv: batadv0: Interface activated: syzkaller0 [ 640.257326][ T8516] FAULT_INJECTION: forcing a failure. [ 640.257326][ T8516] name failslab, interval 1, probability 0, space 0, times 0 [ 640.257422][ T8516] CPU: 1 UID: 0 PID: 8516 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 640.257488][ T8516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 640.257530][ T8516] Call Trace: [ 640.257553][ T8516] [ 640.257618][ T8516] dump_stack_lvl+0xe8/0x150 [ 640.257697][ T8516] should_fail_ex+0x410/0x560 [ 640.257793][ T8516] should_failslab+0xa8/0x100 [ 640.257885][ T8516] __kmalloc_cache_noprof+0xa3/0x600 [ 640.257953][ T8516] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 640.258042][ T8516] ? batadv_neigh_ifinfo_new+0x95/0x300 executing program [ 640.258140][ T8516] batadv_neigh_ifinfo_new+0x95/0x300 [ 640.258239][ T8516] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 640.258371][ T8516] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 640.258479][ T8516] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 640.258576][ T8516] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 640.258684][ T8516] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 640.258779][ T8516] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 640.258878][ T8516] batadv_iv_ogm_receive+0xc13/0x1740 [ 640.259006][ T8516] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 640.259168][ T8516] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 640.259272][ T8516] ? rcu_is_watching+0x16/0xb0 [ 640.259340][ T8516] ? __alloc_skb+0x27a/0x7a0 [ 640.259405][ T8516] ? trace_kmem_cache_alloc+0x29/0xe0 [ 640.259520][ T8516] batadv_batman_skb_recv+0x4b6/0x870 [ 640.259595][ T8516] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 640.259673][ T8516] ? netif_receive_skb+0x102/0xbf0 [ 640.259773][ T8516] ? netif_receive_skb+0x102/0xbf0 [ 640.259858][ T8516] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 640.259924][ T8516] netif_receive_skb+0x4af/0xbf0 [ 640.260032][ T8516] ? __pfx_netif_receive_skb+0x10/0x10 [ 640.260140][ T8516] ? tun_rx_batched+0x185/0x790 [ 640.260208][ T8516] tun_rx_batched+0x1de/0x790 [ 640.260287][ T8516] ? __pfx_tun_rx_batched+0x10/0x10 [ 640.260352][ T8516] ? lock_acquire+0x115/0x350 [ 640.260429][ T8516] ? tun_get_user+0x23ba/0x44d0 [ 640.260502][ T8516] ? __local_bh_enable_ip+0xd6/0x140 [ 640.260599][ T8516] ? tun_get_user+0x27b0/0x44d0 [ 640.260682][ T8516] tun_get_user+0x2be0/0x44d0 [ 640.260789][ T8516] ? tun_get_user+0x27b0/0x44d0 [ 640.260864][ T8516] ? aa_file_perm+0x4ed/0x15f0 [ 640.260940][ T8516] ? __pfx_tun_get_user+0x10/0x10 [ 640.261013][ T8516] ? __lock_acquire+0x747/0x2de0 [ 640.261085][ T8516] ? kstrtoull+0x137/0x1d0 [ 640.261193][ T8516] ? ref_tracker_alloc+0x341/0x4b0 [ 640.261224][ T8516] ? lock_acquire+0x115/0x350 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 640.261244][ T8516] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 640.261269][ T8516] ? lock_acquire+0x115/0x350 [ 640.261288][ T8516] ? tun_get+0x1c/0x2f0 [ 640.261313][ T8516] ? tun_get+0x1c/0x2f0 [ 640.261332][ T8516] ? tun_get+0x1c/0x2f0 [ 640.261355][ T8516] tun_chr_write_iter+0x113/0x200 [ 640.261378][ T8516] vfs_write+0x612/0xba0 [ 640.261472][ T8516] ? __pfx_vfs_write+0x10/0x10 [ 640.261593][ T8516] ? do_sys_openat2+0x14e/0x200 [ 640.261698][ T8516] ksys_write+0x150/0x270 [ 640.261804][ T8516] ? __pfx_ksys_write+0x10/0x10 executing program [ 640.261948][ T8516] __do_fast_syscall_32+0x27a/0x6a0 [ 640.261992][ T8516] ? do_fast_syscall_32+0x33/0x70 [ 640.262015][ T8516] ? irqentry_exit+0x10f/0x910 [ 640.262035][ T8516] ? trace_irq_disable+0x3b/0x140 [ 640.262062][ T8516] do_fast_syscall_32+0x33/0x70 [ 640.262155][ T8516] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 640.262222][ T8516] RIP: 0023:0xf7d7f0ec [ 640.262286][ T8516] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 640.262342][ T8516] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 640.262417][ T8516] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 640.262456][ T8516] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 640.262497][ T8516] RBP: 0000000000000105 R08: 0000000000000000 R09: 0000000000000000 [ 640.262531][ T8516] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 640.262572][ T8516] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 640.262659][ T8516] [ 640.280821][ T8516] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 640.351997][ T8516] batman_adv: batadv0: Removing interface: syzkaller0 [ 640.587098][ T8517] batman_adv: batadv0: Adding interface: syzkaller0 [ 640.587160][ T8517] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 640.587251][ T8517] batman_adv: batadv0: Interface activated: syzkaller0 [ 640.596903][ T8517] FAULT_INJECTION: forcing a failure. [ 640.596903][ T8517] name failslab, interval 1, probability 0, space 0, times 0 [ 640.597011][ T8517] CPU: 1 UID: 0 PID: 8517 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 640.597078][ T8517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 640.597106][ T8517] Call Trace: [ 640.597114][ T8517] [ 640.597123][ T8517] dump_stack_lvl+0xe8/0x150 [ 640.597158][ T8517] should_fail_ex+0x410/0x560 [ 640.597185][ T8517] should_failslab+0xa8/0x100 [ 640.597210][ T8517] __kmalloc_cache_noprof+0xa3/0x600 [ 640.597231][ T8517] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 640.597262][ T8517] ? batadv_neigh_ifinfo_new+0x95/0x300 executing program [ 640.597373][ T8517] batadv_neigh_ifinfo_new+0x95/0x300 [ 640.597494][ T8517] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 640.597638][ T8517] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 640.597751][ T8517] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 640.597851][ T8517] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 640.597955][ T8517] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 640.598042][ T8517] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 640.598147][ T8517] batadv_iv_ogm_receive+0xc13/0x1740 [ 640.598279][ T8517] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 640.598423][ T8517] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 640.598531][ T8517] ? __alloc_skb+0x27a/0x7a0 [ 640.598589][ T8517] ? trace_kmem_cache_alloc+0x29/0xe0 [ 640.598699][ T8517] batadv_batman_skb_recv+0x4b6/0x870 [ 640.598793][ T8517] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 640.598876][ T8517] ? irqentry_exit+0x218/0x910 [ 640.598942][ T8517] ? lockdep_hardirqs_on+0x7b/0x110 [ 640.598998][ T8517] ? netif_receive_skb+0x102/0xbf0 [ 640.599080][ T8517] ? netif_receive_skb+0x102/0xbf0 [ 640.599166][ T8517] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 640.599233][ T8517] netif_receive_skb+0x4af/0xbf0 [ 640.599344][ T8517] ? __pfx_netif_receive_skb+0x10/0x10 [ 640.599446][ T8517] ? tun_rx_batched+0x185/0x790 [ 640.599515][ T8517] tun_rx_batched+0x1de/0x790 [ 640.599595][ T8517] ? __pfx_tun_rx_batched+0x10/0x10 [ 640.599676][ T8517] ? lock_acquire+0x115/0x350 [ 640.599758][ T8517] ? tun_get_user+0x23ba/0x44d0 [ 640.599824][ T8517] ? __local_bh_enable_ip+0xd6/0x140 [ 640.599901][ T8517] ? tun_get_user+0x27b0/0x44d0 [ 640.599968][ T8517] tun_get_user+0x2be0/0x44d0 [ 640.600067][ T8517] ? tun_get_user+0x27b0/0x44d0 [ 640.600145][ T8517] ? aa_file_perm+0x4ed/0x15f0 [ 640.600248][ T8517] ? __pfx_tun_get_user+0x10/0x10 [ 640.600316][ T8517] ? __lock_acquire+0x747/0x2de0 [ 640.600384][ T8517] ? kstrtoull+0x137/0x1d0 [ 640.600508][ T8517] ? ref_tracker_alloc+0x341/0x4b0 [ 640.600576][ T8517] ? lock_acquire+0x115/0x350 [ 640.600645][ T8517] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 640.600724][ T8517] ? lock_acquire+0x115/0x350 [ 640.600788][ T8517] ? tun_get+0x1c/0x2f0 [ 640.600867][ T8517] ? tun_get+0x1c/0x2f0 [ 640.600925][ T8517] ? tun_get+0x1c/0x2f0 [ 640.601003][ T8517] tun_chr_write_iter+0x113/0x200 [ 640.601074][ T8517] vfs_write+0x612/0xba0 [ 640.601196][ T8517] ? __pfx_vfs_write+0x10/0x10 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 640.601309][ T8517] ? do_sys_openat2+0x14e/0x200 [ 640.601411][ T8517] ksys_write+0x150/0x270 [ 640.601508][ T8517] ? __pfx_ksys_write+0x10/0x10 [ 640.601547][ T8517] __do_fast_syscall_32+0x27a/0x6a0 [ 640.601573][ T8517] ? do_fast_syscall_32+0x33/0x70 [ 640.601598][ T8517] ? irqentry_exit+0x10f/0x910 [ 640.601689][ T8517] do_fast_syscall_32+0x33/0x70 [ 640.601772][ T8517] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 640.601878][ T8517] RIP: 0023:0xf7d7f0ec executing program [ 640.601937][ T8517] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 640.601993][ T8517] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 640.602062][ T8517] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 640.602113][ T8517] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 640.602148][ T8517] RBP: 0000000000000106 R08: 0000000000000000 R09: 0000000000000000 [ 640.602185][ T8517] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 640.602226][ T8517] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 640.602308][ T8517] [ 640.612599][ T8517] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 640.706365][ T8517] batman_adv: batadv0: Removing interface: syzkaller0 [ 640.989292][ T8518] batman_adv: batadv0: Adding interface: syzkaller0 [ 640.989355][ T8518] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 640.989442][ T8518] batman_adv: batadv0: Interface activated: syzkaller0 [ 640.993721][ T8518] FAULT_INJECTION: forcing a failure. [ 640.993721][ T8518] name failslab, interval 1, probability 0, space 0, times 0 [ 640.993831][ T8518] CPU: 1 UID: 0 PID: 8518 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 640.993904][ T8518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 640.993939][ T8518] Call Trace: [ 640.993963][ T8518] [ 640.993993][ T8518] dump_stack_lvl+0xe8/0x150 [ 640.994107][ T8518] should_fail_ex+0x410/0x560 [ 640.994185][ T8518] should_failslab+0xa8/0x100 [ 640.994263][ T8518] __kmalloc_cache_noprof+0xa3/0x600 [ 640.994314][ T8518] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 640.994397][ T8518] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 640.994503][ T8518] batadv_neigh_ifinfo_new+0x95/0x300 [ 640.994611][ T8518] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 640.994741][ T8518] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 640.994852][ T8518] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 640.994948][ T8518] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 640.995054][ T8518] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 640.995150][ T8518] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 640.995257][ T8518] batadv_iv_ogm_receive+0xc13/0x1740 [ 640.995402][ T8518] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 640.995524][ T8518] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 640.995619][ T8518] ? rcu_is_watching+0x16/0xb0 [ 640.995694][ T8518] ? __alloc_skb+0x27a/0x7a0 [ 640.995770][ T8518] ? trace_kmem_cache_alloc+0x29/0xe0 [ 640.995909][ T8518] batadv_batman_skb_recv+0x4b6/0x870 [ 640.995978][ T8518] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 640.996061][ T8518] ? netif_receive_skb+0x102/0xbf0 [ 640.996146][ T8518] ? netif_receive_skb+0x102/0xbf0 [ 640.996232][ T8518] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 640.996301][ T8518] netif_receive_skb+0x4af/0xbf0 [ 640.996411][ T8518] ? __pfx_netif_receive_skb+0x10/0x10 [ 640.996513][ T8518] ? tun_rx_batched+0x185/0x790 [ 640.996598][ T8518] tun_rx_batched+0x1de/0x790 [ 640.996696][ T8518] ? __pfx_tun_rx_batched+0x10/0x10 [ 640.996756][ T8518] ? lock_acquire+0x115/0x350 [ 640.996858][ T8518] ? tun_get_user+0x23ba/0x44d0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed executing program [ 640.996915][ T8518] ? __local_bh_enable_ip+0xd6/0x140 [ 640.997010][ T8518] ? tun_get_user+0x27b0/0x44d0 [ 640.997075][ T8518] tun_get_user+0x2be0/0x44d0 [ 640.997174][ T8518] ? tun_get_user+0x27b0/0x44d0 [ 640.997249][ T8518] ? aa_file_perm+0x4ed/0x15f0 [ 640.997319][ T8518] ? __pfx_tun_get_user+0x10/0x10 [ 640.997385][ T8518] ? __lock_acquire+0x747/0x2de0 [ 640.997457][ T8518] ? kstrtoull+0x137/0x1d0 [ 640.997587][ T8518] ? ref_tracker_alloc+0x341/0x4b0 [ 640.997656][ T8518] ? lock_acquire+0x115/0x350 [ 640.997720][ T8518] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 640.997811][ T8518] ? lock_acquire+0x115/0x350 [ 640.997874][ T8518] ? tun_get+0x1c/0x2f0 [ 640.997945][ T8518] ? tun_get+0x1c/0x2f0 [ 640.998029][ T8518] ? tun_get+0x1c/0x2f0 [ 640.998120][ T8518] tun_chr_write_iter+0x113/0x200 [ 640.998194][ T8518] vfs_write+0x612/0xba0 [ 640.998297][ T8518] ? __pfx_vfs_write+0x10/0x10 [ 640.998411][ T8518] ? do_sys_openat2+0x14e/0x200 [ 640.998507][ T8518] ksys_write+0x150/0x270 [ 640.998603][ T8518] ? __pfx_ksys_write+0x10/0x10 [ 640.998719][ T8518] __do_fast_syscall_32+0x27a/0x6a0 [ 640.998814][ T8518] ? do_fast_syscall_32+0x33/0x70 [ 640.998915][ T8518] ? irqentry_exit+0x10f/0x910 [ 640.999034][ T8518] do_fast_syscall_32+0x33/0x70 [ 640.999125][ T8518] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 640.999201][ T8518] RIP: 0023:0xf7d7f0ec [ 640.999257][ T8518] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 640.999314][ T8518] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 640.999381][ T8518] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 640.999425][ T8518] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 640.999478][ T8518] RBP: 0000000000000107 R08: 0000000000000000 R09: 0000000000000000 [ 640.999522][ T8518] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 640.999565][ T8518] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 640.999657][ T8518] [ 641.010120][ T8518] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 641.074447][ T8518] batman_adv: batadv0: Removing interface: syzkaller0 [ 641.351136][ T8519] batman_adv: batadv0: Adding interface: syzkaller0 [ 641.351190][ T8519] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 641.351283][ T8519] batman_adv: batadv0: Interface activated: syzkaller0 [ 641.355777][ T8519] FAULT_INJECTION: forcing a failure. [ 641.355777][ T8519] name failslab, interval 1, probability 0, space 0, times 0 [ 641.355909][ T8519] CPU: 1 UID: 0 PID: 8519 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 641.355976][ T8519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 641.356012][ T8519] Call Trace: [ 641.356042][ T8519] [ 641.356060][ T8519] dump_stack_lvl+0xe8/0x150 [ 641.356167][ T8519] should_fail_ex+0x410/0x560 [ 641.356246][ T8519] should_failslab+0xa8/0x100 [ 641.356336][ T8519] __kmalloc_cache_noprof+0xa3/0x600 [ 641.356402][ T8519] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 641.356494][ T8519] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 641.356604][ T8519] batadv_neigh_ifinfo_new+0x95/0x300 [ 641.356715][ T8519] batadv_iv_ogm_process_per_outif+0x52e/0x2790 [ 641.356936][ T8519] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 641.357040][ T8519] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 641.357161][ T8519] ? netdev_lower_get_next_private_rcu+0x9f/0x100 [ 641.357237][ T8519] batadv_iv_ogm_receive+0x11c7/0x1740 [ 641.357382][ T8519] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 641.357513][ T8519] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 641.357609][ T8519] ? rcu_is_watching+0x16/0xb0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 641.357707][ T8519] ? __alloc_skb+0x27a/0x7a0 [ 641.357789][ T8519] ? trace_kmem_cache_alloc+0x29/0xe0 [ 641.357930][ T8519] batadv_batman_skb_recv+0x4b6/0x870 [ 641.358007][ T8519] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 641.358090][ T8519] ? netif_receive_skb+0x102/0xbf0 [ 641.358178][ T8519] ? netif_receive_skb+0x102/0xbf0 [ 641.358257][ T8519] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 641.358322][ T8519] netif_receive_skb+0x4af/0xbf0 [ 641.358422][ T8519] ? __pfx_netif_receive_skb+0x10/0x10 executing program [ 641.358528][ T8519] ? tun_rx_batched+0x185/0x790 [ 641.358597][ T8519] tun_rx_batched+0x1de/0x790 [ 641.358656][ T8519] ? __pfx_tun_rx_batched+0x10/0x10 [ 641.358730][ T8519] ? lock_acquire+0x115/0x350 [ 641.358798][ T8519] ? tun_get_user+0x23ba/0x44d0 [ 641.358854][ T8519] ? __local_bh_enable_ip+0xd6/0x140 [ 641.358931][ T8519] ? tun_get_user+0x27b0/0x44d0 [ 641.359003][ T8519] tun_get_user+0x2be0/0x44d0 [ 641.359111][ T8519] ? tun_get_user+0x27b0/0x44d0 [ 641.359188][ T8519] ? aa_file_perm+0x4ed/0x15f0 [ 641.359271][ T8519] ? __pfx_tun_get_user+0x10/0x10 [ 641.359345][ T8519] ? __lock_acquire+0x747/0x2de0 [ 641.359412][ T8519] ? kstrtoull+0x137/0x1d0 [ 641.359528][ T8519] ? ref_tracker_alloc+0x341/0x4b0 [ 641.359562][ T8519] ? lock_acquire+0x115/0x350 [ 641.359583][ T8519] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 641.359611][ T8519] ? lock_acquire+0x115/0x350 [ 641.359633][ T8519] ? tun_get+0x1c/0x2f0 [ 641.359716][ T8519] ? tun_get+0x1c/0x2f0 [ 641.359789][ T8519] ? tun_get+0x1c/0x2f0 [ 641.359872][ T8519] tun_chr_write_iter+0x113/0x200 [ 641.359940][ T8519] vfs_write+0x612/0xba0 [ 641.360066][ T8519] ? __pfx_vfs_write+0x10/0x10 [ 641.360100][ T8519] ? do_sys_openat2+0x14e/0x200 [ 641.360128][ T8519] ksys_write+0x150/0x270 [ 641.360154][ T8519] ? __pfx_ksys_write+0x10/0x10 [ 641.360264][ T8519] __do_fast_syscall_32+0x27a/0x6a0 [ 641.360342][ T8519] ? do_fast_syscall_32+0x33/0x70 [ 641.360409][ T8519] ? irqentry_exit+0x10f/0x910 [ 641.360471][ T8519] ? trace_irq_disable+0x3b/0x140 [ 641.360549][ T8519] do_fast_syscall_32+0x33/0x70 [ 641.360617][ T8519] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 641.360694][ T8519] RIP: 0023:0xf7d7f0ec [ 641.360753][ T8519] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 641.360807][ T8519] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 641.360872][ T8519] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 641.360916][ T8519] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 641.360951][ T8519] RBP: 0000000000000108 R08: 0000000000000000 R09: 0000000000000000 [ 641.360990][ T8519] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 641.361025][ T8519] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 641.361114][ T8519] [ 641.374278][ T8519] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 641.467257][ T8519] batman_adv: batadv0: Removing interface: syzkaller0 [ 641.718771][ T8520] batman_adv: batadv0: Adding interface: syzkaller0 [ 641.718833][ T8520] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 641.718921][ T8520] batman_adv: batadv0: Interface activated: syzkaller0 [ 641.723176][ T8520] FAULT_INJECTION: forcing a failure. [ 641.723176][ T8520] name failslab, interval 1, probability 0, space 0, times 0 [ 641.723272][ T8520] CPU: 1 UID: 0 PID: 8520 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 641.723338][ T8520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 641.723380][ T8520] Call Trace: [ 641.723402][ T8520] [ 641.723437][ T8520] dump_stack_lvl+0xe8/0x150 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 641.723571][ T8520] should_fail_ex+0x410/0x560 [ 641.723651][ T8520] should_failslab+0xa8/0x100 [ 641.723745][ T8520] __kmalloc_cache_noprof+0xa3/0x600 [ 641.723803][ T8520] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 641.723899][ T8520] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 641.724033][ T8520] batadv_neigh_ifinfo_new+0x95/0x300 [ 641.724141][ T8520] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 641.724258][ T8520] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 641.724382][ T8520] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 executing program [ 641.724495][ T8520] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 641.724594][ T8520] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 641.724678][ T8520] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 641.724780][ T8520] batadv_iv_ogm_receive+0xc13/0x1740 [ 641.724901][ T8520] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 641.725030][ T8520] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 641.725126][ T8520] ? rcu_is_watching+0x16/0xb0 [ 641.725194][ T8520] ? __alloc_skb+0x27a/0x7a0 [ 641.725252][ T8520] ? trace_kmem_cache_alloc+0x29/0xe0 [ 641.725358][ T8520] batadv_batman_skb_recv+0x4b6/0x870 [ 641.725434][ T8520] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 641.725512][ T8520] ? netif_receive_skb+0x102/0xbf0 [ 641.725612][ T8520] ? netif_receive_skb+0x102/0xbf0 [ 641.725737][ T8520] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 641.725802][ T8520] netif_receive_skb+0x4af/0xbf0 [ 641.725900][ T8520] ? __pfx_netif_receive_skb+0x10/0x10 [ 641.725998][ T8520] ? tun_rx_batched+0x185/0x790 [ 641.726065][ T8520] tun_rx_batched+0x1de/0x790 [ 641.726149][ T8520] ? __pfx_tun_rx_batched+0x10/0x10 [ 641.726228][ T8520] ? lock_acquire+0x115/0x350 [ 641.726335][ T8520] ? tun_get_user+0x23ba/0x44d0 [ 641.726399][ T8520] ? __local_bh_enable_ip+0xd6/0x140 [ 641.726476][ T8520] ? tun_get_user+0x27b0/0x44d0 [ 641.726541][ T8520] tun_get_user+0x2be0/0x44d0 [ 641.726641][ T8520] ? tun_get_user+0x27b0/0x44d0 [ 641.726711][ T8520] ? aa_file_perm+0x4ed/0x15f0 [ 641.726798][ T8520] ? __pfx_tun_get_user+0x10/0x10 [ 641.726870][ T8520] ? __lock_acquire+0x747/0x2de0 [ 641.726935][ T8520] ? kstrtoull+0x137/0x1d0 [ 641.727076][ T8520] ? ref_tracker_alloc+0x341/0x4b0 [ 641.727144][ T8520] ? lock_acquire+0x115/0x350 [ 641.727208][ T8520] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 641.727279][ T8520] ? lock_acquire+0x115/0x350 [ 641.727343][ T8520] ? tun_get+0x1c/0x2f0 [ 641.727419][ T8520] ? tun_get+0x1c/0x2f0 [ 641.727477][ T8520] ? tun_get+0x1c/0x2f0 [ 641.727552][ T8520] tun_chr_write_iter+0x113/0x200 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 641.727627][ T8520] vfs_write+0x612/0xba0 [ 641.727762][ T8520] ? __pfx_vfs_write+0x10/0x10 [ 641.727880][ T8520] ? do_sys_openat2+0x14e/0x200 [ 641.727973][ T8520] ksys_write+0x150/0x270 [ 641.728071][ T8520] ? __pfx_ksys_write+0x10/0x10 [ 641.728188][ T8520] __do_fast_syscall_32+0x27a/0x6a0 [ 641.728269][ T8520] ? do_fast_syscall_32+0x33/0x70 [ 641.728335][ T8520] ? irqentry_exit+0x10f/0x910 [ 641.728409][ T8520] do_fast_syscall_32+0x33/0x70 [ 641.728501][ T8520] entry_SYSENTER_compat_after_hwframe+0x84/0x8e executing program [ 641.728575][ T8520] RIP: 0023:0xf7d7f0ec [ 641.728633][ T8520] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 641.728685][ T8520] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 641.728759][ T8520] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 641.728802][ T8520] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 641.728844][ T8520] RBP: 0000000000000109 R08: 0000000000000000 R09: 0000000000000000 [ 641.728877][ T8520] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 641.728917][ T8520] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 641.729003][ T8520] [ 641.745523][ T8520] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 641.841437][ T8520] batman_adv: batadv0: Removing interface: syzkaller0 [ 642.002139][ T8521] batman_adv: batadv0: Adding interface: syzkaller0 [ 642.002198][ T8521] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 642.002296][ T8521] batman_adv: batadv0: Interface activated: syzkaller0 [ 642.008300][ T8521] FAULT_INJECTION: forcing a failure. [ 642.008300][ T8521] name failslab, interval 1, probability 0, space 0, times 0 [ 642.008405][ T8521] CPU: 0 UID: 0 PID: 8521 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 642.008473][ T8521] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 642.008516][ T8521] Call Trace: [ 642.008546][ T8521] [ 642.008578][ T8521] dump_stack_lvl+0xe8/0x150 [ 642.008680][ T8521] should_fail_ex+0x410/0x560 [ 642.008774][ T8521] should_failslab+0xa8/0x100 [ 642.008859][ T8521] __kmalloc_cache_noprof+0xa3/0x600 [ 642.008925][ T8521] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 642.009014][ T8521] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 642.009156][ T8521] batadv_neigh_ifinfo_new+0x95/0x300 [ 642.009251][ T8521] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 642.009426][ T8521] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 642.009551][ T8521] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 642.009663][ T8521] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 642.009773][ T8521] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 642.009865][ T8521] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 642.009964][ T8521] batadv_iv_ogm_receive+0xc13/0x1740 [ 642.010093][ T8521] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 642.010236][ T8521] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 642.010336][ T8521] ? rcu_is_watching+0x16/0xb0 [ 642.010372][ T8521] ? __alloc_skb+0x27a/0x7a0 [ 642.010396][ T8521] ? trace_kmem_cache_alloc+0x29/0xe0 [ 642.010435][ T8521] batadv_batman_skb_recv+0x4b6/0x870 [ 642.010528][ T8521] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 642.010617][ T8521] ? netif_receive_skb+0x102/0xbf0 [ 642.010694][ T8521] ? netif_receive_skb+0x102/0xbf0 [ 642.010790][ T8521] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 642.010874][ T8521] netif_receive_skb+0x4af/0xbf0 [ 642.010984][ T8521] ? __pfx_netif_receive_skb+0x10/0x10 [ 642.011093][ T8521] ? tun_rx_batched+0x185/0x790 [ 642.011168][ T8521] tun_rx_batched+0x1de/0x790 [ 642.011272][ T8521] ? __pfx_tun_rx_batched+0x10/0x10 [ 642.011339][ T8521] ? lock_acquire+0x115/0x350 [ 642.011412][ T8521] ? tun_get_user+0x23ba/0x44d0 [ 642.011478][ T8521] ? __local_bh_enable_ip+0xd6/0x140 [ 642.011553][ T8521] ? tun_get_user+0x27b0/0x44d0 [ 642.011627][ T8521] tun_get_user+0x2be0/0x44d0 [ 642.011733][ T8521] ? tun_get_user+0x27b0/0x44d0 [ 642.011809][ T8521] ? aa_file_perm+0x4ed/0x15f0 [ 642.011894][ T8521] ? __pfx_tun_get_user+0x10/0x10 [ 642.011984][ T8521] ? __lock_acquire+0x747/0x2de0 [ 642.012066][ T8521] ? kstrtoull+0x137/0x1d0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed executing program [ 642.012178][ T8521] ? ref_tracker_alloc+0x341/0x4b0 [ 642.012256][ T8521] ? lock_acquire+0x115/0x350 [ 642.012320][ T8521] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 642.012397][ T8521] ? lock_acquire+0x115/0x350 [ 642.012454][ T8521] ? tun_get+0x1c/0x2f0 [ 642.012538][ T8521] ? tun_get+0x1c/0x2f0 [ 642.012603][ T8521] ? tun_get+0x1c/0x2f0 [ 642.012682][ T8521] tun_chr_write_iter+0x113/0x200 [ 642.012767][ T8521] vfs_write+0x612/0xba0 [ 642.012891][ T8521] ? __pfx_vfs_write+0x10/0x10 [ 642.013054][ T8521] ? do_sys_openat2+0x14e/0x200 [ 642.013162][ T8521] ksys_write+0x150/0x270 [ 642.013246][ T8521] ? __pfx_ksys_write+0x10/0x10 [ 642.013366][ T8521] __do_fast_syscall_32+0x27a/0x6a0 [ 642.013443][ T8521] ? do_fast_syscall_32+0x33/0x70 [ 642.013486][ T8521] ? irqentry_exit+0x10f/0x910 [ 642.013566][ T8521] ? trace_irq_disable+0x3b/0x140 [ 642.013669][ T8521] do_fast_syscall_32+0x33/0x70 [ 642.013753][ T8521] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 642.013830][ T8521] RIP: 0023:0xf7d7f0ec [ 642.013891][ T8521] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 642.013944][ T8521] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 642.014009][ T8521] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 642.014053][ T8521] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 642.014096][ T8521] RBP: 000000000000010a R08: 0000000000000000 R09: 0000000000000000 [ 642.014139][ T8521] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 642.014180][ T8521] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 642.014261][ T8521] [ 642.022353][ T8521] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 642.118467][ T8521] batman_adv: batadv0: Removing interface: syzkaller0 [ 642.346389][ T8522] batman_adv: batadv0: Adding interface: syzkaller0 [ 642.346450][ T8522] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 642.346546][ T8522] batman_adv: batadv0: Interface activated: syzkaller0 [ 642.356737][ T8522] FAULT_INJECTION: forcing a failure. [ 642.356737][ T8522] name failslab, interval 1, probability 0, space 0, times 0 [ 642.356865][ T8522] CPU: 0 UID: 0 PID: 8522 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 642.356941][ T8522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 642.356976][ T8522] Call Trace: [ 642.357020][ T8522] [ 642.357044][ T8522] dump_stack_lvl+0xe8/0x150 [ 642.357150][ T8522] should_fail_ex+0x410/0x560 [ 642.357236][ T8522] should_failslab+0xa8/0x100 [ 642.357311][ T8522] __kmalloc_cache_noprof+0xa3/0x600 [ 642.357394][ T8522] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 642.357486][ T8522] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 642.357610][ T8522] batadv_neigh_ifinfo_new+0x95/0x300 [ 642.357726][ T8522] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 642.357869][ T8522] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 642.357982][ T8522] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 642.358087][ T8522] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 642.358196][ T8522] ? batadv_iv_ogm_orig_get+0x31/0x5c0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 642.358252][ T8522] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 642.358288][ T8522] batadv_iv_ogm_receive+0xc13/0x1740 [ 642.358369][ T8522] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 642.358519][ T8522] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 642.358622][ T8522] ? rcu_is_watching+0x16/0xb0 [ 642.358704][ T8522] ? __alloc_skb+0x27a/0x7a0 [ 642.358779][ T8522] ? trace_kmem_cache_alloc+0x29/0xe0 [ 642.358888][ T8522] batadv_batman_skb_recv+0x4b6/0x870 [ 642.358968][ T8522] ? __pfx_batadv_batman_skb_recv+0x10/0x10 executing program [ 642.359059][ T8522] ? netif_receive_skb+0x102/0xbf0 [ 642.359147][ T8522] ? netif_receive_skb+0x102/0xbf0 [ 642.359238][ T8522] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 642.359312][ T8522] netif_receive_skb+0x4af/0xbf0 [ 642.359453][ T8522] ? __pfx_netif_receive_skb+0x10/0x10 [ 642.359572][ T8522] ? tun_rx_batched+0x185/0x790 [ 642.359648][ T8522] tun_rx_batched+0x1de/0x790 [ 642.359725][ T8522] ? __pfx_tun_rx_batched+0x10/0x10 [ 642.359800][ T8522] ? lock_acquire+0x115/0x350 [ 642.359896][ T8522] ? tun_get_user+0x23ba/0x44d0 [ 642.359957][ T8522] ? __local_bh_enable_ip+0xd6/0x140 [ 642.360033][ T8522] ? tun_get_user+0x27b0/0x44d0 [ 642.360114][ T8522] tun_get_user+0x2be0/0x44d0 [ 642.360213][ T8522] ? tun_get_user+0x27b0/0x44d0 [ 642.360289][ T8522] ? aa_file_perm+0x4ed/0x15f0 [ 642.360376][ T8522] ? __pfx_tun_get_user+0x10/0x10 [ 642.360442][ T8522] ? __lock_acquire+0x747/0x2de0 [ 642.360514][ T8522] ? kstrtoull+0x137/0x1d0 [ 642.360633][ T8522] ? ref_tracker_alloc+0x341/0x4b0 [ 642.360700][ T8522] ? lock_acquire+0x115/0x350 [ 642.360752][ T8522] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 642.360839][ T8522] ? lock_acquire+0x115/0x350 [ 642.360895][ T8522] ? tun_get+0x1c/0x2f0 [ 642.360991][ T8522] ? tun_get+0x1c/0x2f0 [ 642.361058][ T8522] ? tun_get+0x1c/0x2f0 [ 642.361128][ T8522] tun_chr_write_iter+0x113/0x200 [ 642.361221][ T8522] vfs_write+0x612/0xba0 [ 642.361348][ T8522] ? __pfx_vfs_write+0x10/0x10 [ 642.361465][ T8522] ? do_sys_openat2+0x14e/0x200 [ 642.361574][ T8522] ksys_write+0x150/0x270 [ 642.361680][ T8522] ? __pfx_ksys_write+0x10/0x10 [ 642.361800][ T8522] __do_fast_syscall_32+0x27a/0x6a0 [ 642.361876][ T8522] ? do_fast_syscall_32+0x33/0x70 [ 642.361949][ T8522] ? irqentry_exit+0x10f/0x910 [ 642.362012][ T8522] ? trace_irq_disable+0x3b/0x140 [ 642.362092][ T8522] do_fast_syscall_32+0x33/0x70 [ 642.362167][ T8522] entry_SYSENTER_compat_after_hwframe+0x84/0x8e [ 642.362245][ T8522] RIP: 0023:0xf7d7f0ec [ 642.362302][ T8522] Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 [ 642.362356][ T8522] RSP: 002b:00000000f7f4fcec EFLAGS: 00000206 ORIG_RAX: 0000000000000004 [ 642.362430][ T8522] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000800 [ 642.362473][ T8522] RDX: 0000000000000026 RSI: 00000000f7dfc24d RDI: 0000000000000006 [ 642.362497][ T8522] RBP: 000000000000010b R08: 0000000000000000 R09: 0000000000000000 [ 642.362526][ T8522] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 642.362577][ T8522] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 642.362678][ T8522] [ 642.406153][ T8522] batman_adv: batadv0: Interface deactivated: syzkaller0 [ 642.473049][ T8522] batman_adv: batadv0: Removing interface: syzkaller0 [ 642.690379][ T8523] batman_adv: batadv0: Adding interface: syzkaller0 [ 642.690440][ T8523] batman_adv: batadv0: The MTU of interface syzkaller0 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 1532 would solve the problem. [ 642.690561][ T8523] batman_adv: batadv0: Interface activated: syzkaller0 [ 642.694862][ T8523] FAULT_INJECTION: forcing a failure. [ 642.694862][ T8523] name failslab, interval 1, probability 0, space 0, times 0 the reproducer may not work as expected: binfmt_misc setup failed: write(/proc/sys/fs/binfmt_misc/register) failed the reproducer may not work as expected: 802154 injection setup failed: NL802154_CMD_SET_SHORT_ADDR failed [ 642.694957][ T8523] CPU: 0 UID: 0 PID: 8523 Comm: syz-executor348 Not tainted syzkaller #0 PREEMPT(full) [ 642.695029][ T8523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 [ 642.695063][ T8523] Call Trace: [ 642.695086][ T8523] [ 642.695117][ T8523] dump_stack_lvl+0xe8/0x150 [ 642.695221][ T8523] should_fail_ex+0x410/0x560 [ 642.695305][ T8523] should_failslab+0xa8/0x100 [ 642.695384][ T8523] __kmalloc_cache_noprof+0xa3/0x600 executing program [ 642.695463][ T8523] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 642.695555][ T8523] ? batadv_neigh_ifinfo_new+0x95/0x300 [ 642.695670][ T8523] batadv_neigh_ifinfo_new+0x95/0x300 [ 642.695828][ T8523] batadv_iv_ogm_process_per_outif+0x1819/0x2790 [ 642.695962][ T8523] ? batadv_iv_ogm_process_per_outif+0x101a/0x2790 [ 642.696073][ T8523] ? batadv_iv_ogm_process_per_outif+0x3d3/0x2790 [ 642.696208][ T8523] ? __pfx_batadv_iv_ogm_process_per_outif+0x10/0x10 [ 642.696319][ T8523] ? batadv_iv_ogm_orig_get+0x31/0x5c0 [ 642.696414][ T8523] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 642.696522][ T8523] batadv_iv_ogm_receive+0xc13/0x1740 [ 642.696652][ T8523] ? batadv_iv_ogm_receive+0x4b1/0x1740 [ 642.696784][ T8523] ? __pfx_batadv_iv_ogm_receive+0x10/0x10 [ 642.696883][ T8523] ? rcu_is_watching+0x16/0xb0 [ 642.696951][ T8523] ? __alloc_skb+0x27a/0x7a0 [ 642.697042][ T8523] ? trace_kmem_cache_alloc+0x29/0xe0 [ 642.697151][ T8523] batadv_batman_skb_recv+0x4b6/0x870 [ 642.697216][ T8523] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 642.697317][ T8523] ? netif_receive_skb+0x102/0xbf0 [ 642.697414][ T8523] ? netif_receive_skb+0x102/0xbf0 [ 642.697495][ T8523] ? __pfx_batadv_batman_skb_recv+0x10/0x10 [ 642.697561][ T8523] netif_receive_skb+0x4af/0xbf0 [ 642.697669][ T8523] ? __pfx_netif_receive_skb+0x10/0x10 [ 642.697797][ T8523] ? tun_rx_batched+0x185/0x790 [ 642.697878][ T8523] tun_rx_batched+0x1de/0x790 [ 642.697963][ T8523] ? __pfx_tun_rx_batched+0x10/0x10 [ 642.698030][ T8523] ? lock_acquire+0x115/0x350 [ 642.698110][ T8523] ? tun_get_user+0x23ba/0x44d0 [ 642.698173][ T8523] ? __local_bh_enable_ip+0xd6/0x140 [ 642.698207][ T8523] ? tun_get_user+0x27b0/0x44d0 [ 642.698228][ T8523] tun_get_user+0x2be0/0x44d0 [ 642.698261][ T8523] ? tun_get_user+0x27b0/0x44d0 [ 642.698285][ T8523] ? aa_file_perm+0x4ed/0x15f0 [ 642.698310][ T8523] ? __pfx_tun_get_user+0x10/0x10 [ 642.698344][ T8523] ? __lock_acquire+0x747/0x2de0 [ 642.698420][ T8523] ? kstrtoull+0x137/0x1d0 [host] Command execution timed out after 2m30s