program: r0 = fsopen(&(0x7f0000000000)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000100)='source\x00', &(0x7f0000000200)='client.admin@00000000-0000-0000-0000-000000000000.ceph=/\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000300)='mon_addr\x00', &(0x7f0000000040)='1u27.0.0.1:6789\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000500)='mount_timeout\x00', &(0x7f0000000600)='1\x00', 0x0) fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) fsopen(&(0x7f0000000000)='ceph\x00', 0x0) (async) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000100)='source\x00', &(0x7f0000000200)='client.admin@00000000-0000-0000-0000-000000000000.ceph=/\x00', 0x0) (async) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000300)='mon_addr\x00', &(0x7f0000000040)='1u27.0.0.1:6789\x00', 0x0) (async) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000500)='mount_timeout\x00', &(0x7f0000000600)='1\x00', 0x0) (async) fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) (async) [ 94.415653][ T5284] Bluetooth: hci0: command tx timeout [ 94.549584][ T5320] libceph: resolve '1u27.0.0.1' (ret=-3): failed [ 94.565469][ T5320] ------------[ cut here ]------------ [ 94.565482][ T5320] kernel BUG at net/ceph/mon_client.c:211! [ 94.565533][ T5320] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 94.573857][ T5320] CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 94.577268][ T5320] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 94.581784][ T5320] RIP: 0010:__open_session+0x799/0x940 [ 94.585962][ T5320] Code: ca fd ff ff 44 89 e1 80 e1 07 38 c1 0f 8c d0 fd ff ff be 04 00 00 00 4c 89 e7 e8 52 62 97 f6 e9 be fd ff ff e8 68 c2 25 f6 90 <0f> 0b 4d 89 ee 48 8b 04 24 42 0f b6 04 38 84 c0 0f 85 2f 01 00 00 [ 94.593946][ T5320] RSP: 0018:ffffc9000f00fae8 EFLAGS: 00010293 [ 94.596262][ T5320] RAX: ffffffff8ba21958 RBX: ffff888012880290 RCX: ffff88803330cb00 [ 94.599747][ T5320] RDX: 0000000000000000 RSI: ffffffff9058f2a0 RDI: 0000000000000000 [ 94.603401][ T5320] RBP: 00000000ffffffff R08: ffff88803330cb00 R09: 0000000000000002 [ 94.606695][ T5320] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 94.609977][ T5320] R13: ffff888012880400 R14: ffff888012880298 R15: dffffc0000000000 [ 94.613315][ T5320] FS: 00007fb5a0b7f6c0(0000) GS:ffff88808c2c7000(0000) knlGS:0000000000000000 [ 94.617433][ T5320] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.620313][ T5320] CR2: 00007fb5a0b7eff8 CR3: 0000000034d16000 CR4: 0000000000352ef0 [ 94.623823][ T5320] Call Trace: [ 94.625326][ T5320] [ 94.626529][ T5320] ceph_monc_open_session+0x56/0x1a0 [ 94.628842][ T5320] __ceph_open_session+0x16d/0x5e0 [ 94.631122][ T5320] ? bdi_register_va+0x58d/0x740 [ 94.633315][ T5320] ? ceph_get_tree+0x885/0x1a40 [ 94.635551][ T5320] ? __pfx___mutex_lock+0x10/0x10 [ 94.637599][ T5320] ? __pfx___ceph_open_session+0x10/0x10 [ 94.640101][ T5320] ? __pfx_woken_wake_function+0x10/0x10 [ 94.642590][ T5320] ? ceph_mdsc_init+0xce5/0xde0 [ 94.644589][ T5320] ceph_get_tree+0xaef/0x1a40 [ 94.646436][ T5320] vfs_get_tree+0x92/0x2a0 [ 94.648337][ T5320] vfs_cmd_create+0xa2/0x200 [ 94.650442][ T5320] __se_sys_fsconfig+0x6b9/0x810 [ 94.652597][ T5320] ? __pfx___se_sys_fsconfig+0x10/0x10 [ 94.654727][ T5320] ? rcu_is_watching+0x16/0xb0 [ 94.656532][ T5320] ? __x64_sys_fsconfig+0x20/0xc0 [ 94.658561][ T5320] do_syscall_64+0x166/0x520 [ 94.660458][ T5320] ? trace_irq_disable+0x3b/0x140 [ 94.662730][ T5320] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.665305][ T5320] ? clear_bhb_loop+0x70/0xc0 [ 94.667368][ T5320] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 94.670082][ T5320] RIP: 0033:0x7fb59fd9e159 [ 94.672208][ T5320] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 94.680155][ T5320] RSP: 002b:00007fb5a0b7efe8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af [ 94.683275][ T5320] RAX: ffffffffffffffda RBX: 00007fb5a0025fa0 RCX: 00007fb59fd9e159 [ 94.686138][ T5320] RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000003 [ 94.688973][ T5320] RBP: 00007fb59fe3503b R08: 0000000000000000 R09: 0000000000000000 [ 94.691999][ T5320] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 94.694877][ T5320] R13: 00007fb5a0026038 R14: 00007fb5a0025fa0 R15: 00007ffc731a6d78 [ 94.697848][ T5320] [ 94.699013][ T5320] Modules linked in: [ 94.700904][ T5320] ---[ end trace 0000000000000000 ]--- [ 94.711753][ T5320] RIP: 0010:__open_session+0x799/0x940 [ 94.711782][ T5320] Code: ca fd ff ff 44 89 e1 80 e1 07 38 c1 0f 8c d0 fd ff ff be 04 00 00 00 4c 89 e7 e8 52 62 97 f6 e9 be fd ff ff e8 68 c2 25 f6 90 <0f> 0b 4d 89 ee 48 8b 04 24 42 0f b6 04 38 84 c0 0f 85 2f 01 00 00 [ 94.711791][ T5320] RSP: 0018:ffffc9000f00fae8 EFLAGS: 00010293 [ 94.711803][ T5320] RAX: ffffffff8ba21958 RBX: ffff888012880290 RCX: ffff88803330cb00 [ 94.711810][ T5320] RDX: 0000000000000000 RSI: ffffffff9058f2a0 RDI: 0000000000000000 [ 94.711817][ T5320] RBP: 00000000ffffffff R08: ffff88803330cb00 R09: 0000000000000002 [ 94.711824][ T5320] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 94.711830][ T5320] R13: ffff888012880400 R14: ffff888012880298 R15: dffffc0000000000 [ 94.711838][ T5320] FS: 00007fb5a0b7f6c0(0000) GS:ffff88808c2c7000(0000) knlGS:0000000000000000 [ 94.711846][ T5320] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.711853][ T5320] CR2: 00007fb59c170fe8 CR3: 0000000034d16000 CR4: 0000000000352ef0 [ 94.711964][ T5320] Kernel panic - not syncing: Fatal exception [ 94.750120][ T5320] Kernel Offset: disabled [ 94.751754][ T5320] Rebooting in 86400 seconds..