Warning: Permanently added '10.128.1.175' (ECDSA) to the list of known hosts. syzkaller login: [ 42.662511][ T530] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 42.664630][ T530] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 42.667851][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 42.681452][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 42.683480][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 42.685982][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 42.694740][ T4051] loop0: detected capacity change from 0 to 64 [ 42.724888][ T4057] ------------[ cut here ]------------ [ 42.726157][ T4057] WARNING: CPU: 1 PID: 4057 at fs/buffer.c:1084 mark_buffer_dirty+0x42c/0x714 [ 42.728130][ T4057] Modules linked in: [ 42.729034][ T4057] CPU: 1 PID: 4057 Comm: syz-executor221 Not tainted 5.15.102-syzkaller #0 [ 42.730988][ T4057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 42.733240][ T4057] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 42.735024][ T4057] pc : mark_buffer_dirty+0x42c/0x714 [ 42.736224][ T4057] lr : mark_buffer_dirty+0x42c/0x714 [ 42.737459][ T4057] sp : ffff80001c786980 [ 42.738347][ T4057] x29: ffff80001c786980 x28: ffff0000c5ec8000 x27: ffff0000dc4ad200 [ 42.740147][ T4057] x26: ffff0000df534530 x25: ffff0000d99e6018 x24: ffff0000dca852b8 [ 42.741987][ T4057] x23: ffff0000dca84bc8 x22: ffff0000d99e6160 x21: ffff0000df534540 [ 42.743790][ T4057] x20: 0000000000000010 x19: ffff0000dca852b8 x18: 0000000000000000 [ 42.745586][ T4057] x17: ff808000086d97a0 x16: ffff8000082eebe4 x15: 0000000000000000 [ 42.747440][ T4057] x14: 0000000000000000 x13: ffffffffffffffff x12: 0000000000000000 [ 42.749218][ T4057] x11: ff80800008a74964 x10: 0000000000000000 x9 : ffff800008a74964 [ 42.751016][ T4057] x8 : ffff0000c22ab580 x7 : 0000000000000000 x6 : 0000000000000000 [ 42.752730][ T4057] x5 : ffff0000dc4ad400 x4 : ffff0000c5ec8200 x3 : ffff800008a74564 [ 42.754465][ T4057] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 [ 42.756385][ T4057] Call trace: [ 42.757123][ T4057] mark_buffer_dirty+0x42c/0x714 [ 42.758213][ T4057] bfs_get_block+0x6fc/0xa34 [ 42.759215][ T4057] __block_write_begin_int+0x3ec/0x1608 [ 42.760453][ T4057] block_write_begin+0x60/0xdc [ 42.761555][ T4057] bfs_write_begin+0x50/0xf4 [ 42.762542][ T4057] generic_perform_write+0x24c/0x520 [ 42.763751][ T4057] __generic_file_write_iter+0x230/0x454 [ 42.765016][ T4057] generic_file_write_iter+0xb4/0x1b8 [ 42.766257][ T4057] __kernel_write+0x488/0x8b0 [ 42.767286][ T4057] __dump_emit+0x200/0x338 [ 42.768266][ T4057] dump_emit+0x288/0x36c [ 42.769261][ T4057] elf_core_dump+0x2888/0x3640 [ 42.770296][ T4057] do_coredump+0x12c8/0x2890 [ 42.771316][ T4057] get_signal+0x3dc/0x1550 [ 42.772306][ T4057] do_notify_resume+0x320/0x32b8 [ 42.773502][ T4057] el0_da+0x118/0x20c [ 42.774401][ T4057] el0t_64_sync_handler+0xc0/0xe4 [ 42.775616][ T4057] el0t_64_sync+0x1a0/0x1a4 [ 42.776643][ T4057] irq event stamp: 670 [ 42.777523][ T4057] hardirqs last enabled at (669): [] __find_get_block+0xb68/0xdd4 [ 42.779580][ T4057] hardirqs last disabled at (670): [] el1_dbg+0x24/0x80 [ 42.781511][ T4057] softirqs last enabled at (224): [] local_bh_enable+0x10/0x34 [ 42.783597][ T4057] softirqs last disabled at (222): [] local_bh_disable+0x10/0x34 [ 42.785678][ T4057] ---[ end trace 05b8ff4c121a8f58 ]---