program: openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40, 0x0) (async) r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000) (async) r1 = socket$inet6_udp(0xa, 0x2, 0x0) (async) r2 = socket$pppl2tp(0x18, 0x1, 0x1) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x6, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @private1}}}, 0x32) ioctl$PPPIOCGL2TPSTATS(r2, 0x80487436, &(0x7f0000000000)="0e1c83") (async) r3 = socket$inet6_sctp(0xa, 0x5, 0x84) setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f00000000c0), 0x0) (async) ioctl$sock_ifreq(r3, 0x8927, &(0x7f00000001c0)={'team0\x00', @ifru_flags=0x2000}) (async) r4 = socket(0x2, 0x1, 0x0) r5 = socket$inet6_mptcp(0xa, 0x1, 0x106) getsockopt$SO_TIMESTAMP(r5, 0x1, 0x23, &(0x7f0000000040), &(0x7f0000000140)=0x4) r6 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0) (async) ioctl$NBD_SET_SOCK(r0, 0xab00, r4) ioctl$NBD_DO_IT(r6, 0xab03) (async) ioctl$NBD_SET_SIZE_BLOCKS(r0, 0xab07, 0x100000000) (async) mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0) [ 68.102113][ T4706] Bluetooth: hci0: command tx timeout [ 68.146875][ T4706] block nbd0: Receive control failed (result -107) [ 68.153197][ T5359] block nbd0: Dead connection, failed to find a fallback [ 68.162464][ T5359] block nbd0: shutting down sockets [ 68.164840][ T5359] I/O error, dev nbd0, sector 64 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 68.188528][ T5358] nbd0: detected capacity change from 0 to 8589934592 [ 68.192383][ T5359] UDF-fs: error (device nbd0): udf_read_tagged: read failed, block=256, location=256 [ 68.196570][ T5359] ------------[ cut here ]------------ [ 68.199117][ T5359] WARNING: CPU: 0 PID: 5359 at fs/buffer.c:1125 bdev_getblk+0x580/0x660 [ 68.202529][ T5359] Modules linked in: [ 68.204694][ T5359] CPU: 0 UID: 0 PID: 5359 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 68.208745][ T5359] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.212977][ T5359] RIP: 0010:bdev_getblk+0x580/0x660 [ 68.215131][ T5359] Code: 26 fb ff ff e8 31 2d 78 ff 48 c7 c7 60 05 9a 8b 48 c7 c6 f5 e3 a0 8d 4c 89 fa 4c 89 e9 e8 98 0e e0 fe eb bd e8 11 2d 78 ff 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 74 08 48 89 [ 68.223013][ T5359] RSP: 0018:ffffc9000fd376b0 EFLAGS: 00010293 [ 68.225651][ T5359] RAX: ffffffff8247917f RBX: ffff888032185098 RCX: ffff88803db0a440 [ 68.228984][ T5359] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 68.232304][ T5359] RBP: 0000000000000200 R08: 0000000000000000 R09: ffffffff821759fd [ 68.235610][ T5359] R10: 0000000000000406 R11: 0000000000000000 R12: ffff8880321859f0 [ 68.238961][ T5359] R13: ffff888032185080 R14: 0000000000000200 R15: 1ffff11006430a13 [ 68.242176][ T5359] FS: 00007fede05f56c0(0000) GS:ffff88808d20c000(0000) knlGS:0000000000000000 [ 68.245924][ T5359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.248735][ T5359] CR2: 0000200000004a00 CR3: 0000000041cdc000 CR4: 0000000000352ef0 [ 68.251941][ T5359] Call Trace: [ 68.253387][ T5359] [ 68.254614][ T5359] ? __pfx__udf_err+0x10/0x10 [ 68.256644][ T5359] __bread_gfp+0x89/0x3c0 [ 68.258667][ T5359] udf_read_tagged+0xad/0xe00 [ 68.260722][ T5359] udf_check_anchor_block+0x99/0x550 [ 68.262980][ T5359] ? udf_get_last_block+0x286/0x360 [ 68.265221][ T5359] ? __pfx_udf_check_anchor_block+0x10/0x10 [ 68.267841][ T5359] udf_load_vrs+0x96d/0xf20 [ 68.269706][ T5359] ? __pfx_udf_load_vrs+0x10/0x10 [ 68.271836][ T5359] ? udf_get_last_session+0x100/0x200 [ 68.274131][ T5359] udf_fill_super+0x5ad/0x17a0 [ 68.276157][ T5359] ? __pfx_udf_fill_super+0x10/0x10 [ 68.278520][ T5359] ? set_blocksize+0x21e/0x500 [ 68.280585][ T5359] ? sb_set_blocksize+0x104/0x180 [ 68.282712][ T5359] ? setup_bdev_super+0x4c1/0x5b0 [ 68.284913][ T5359] get_tree_bdev_flags+0x40e/0x4d0 [ 68.287153][ T5359] ? __pfx_udf_fill_super+0x10/0x10 [ 68.289512][ T5359] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 68.291912][ T5359] vfs_get_tree+0x8f/0x2b0 [ 68.293820][ T5359] do_new_mount+0x2a2/0x9e0 [ 68.295726][ T5359] ? ns_capable+0x8a/0xf0 [ 68.297658][ T5359] ? __pfx_do_new_mount+0x10/0x10 [ 68.299794][ T5359] ? path_mount+0x61c/0xfe0 [ 68.301732][ T5359] ? user_path_at+0x44/0x60 [ 68.303632][ T5359] __se_sys_mount+0x317/0x410 [ 68.305600][ T5359] ? __pfx___se_sys_mount+0x10/0x10 [ 68.308061][ T5359] ? rcu_is_watching+0x15/0xb0 [ 68.310076][ T5359] ? do_syscall_64+0xbe/0x3b0 [ 68.312110][ T5359] ? __x64_sys_mount+0x20/0xc0 [ 68.314071][ T5359] do_syscall_64+0xfa/0x3b0 [ 68.316039][ T5359] ? lockdep_hardirqs_on+0x9c/0x150 [ 68.318673][ T5359] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.321218][ T5359] ? clear_bhb_loop+0x60/0xb0 [ 68.323252][ T5359] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.325709][ T5359] RIP: 0033:0x7fede418ebe9 [ 68.327628][ T5359] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 68.335331][ T5359] RSP: 002b:00007fede05f5038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 68.338642][ T5359] RAX: ffffffffffffffda RBX: 00007fede43c6090 RCX: 00007fede418ebe9 [ 68.341893][ T5359] RDX: 0000200000000080 RSI: 0000200000004a00 RDI: 0000200000000000 [ 68.345175][ T5359] RBP: 00007fede4211e19 R08: 0000000000000000 R09: 0000000000000000 [ 68.348628][ T5359] R10: 0000000002008087 R11: 0000000000000246 R12: 0000000000000000 [ 68.351911][ T5359] R13: 00007fede43c6128 R14: 00007fede43c6090 R15: 00007ffc6470aad8 [ 68.355176][ T5359] [ 68.356483][ T5359] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 68.359432][ T5359] CPU: 0 UID: 0 PID: 5359 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 68.363132][ T5359] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.367451][ T5359] Call Trace: [ 68.368841][ T5359] [ 68.370075][ T5359] dump_stack_lvl+0x99/0x250 [ 68.372011][ T5359] ? __asan_memcpy+0x40/0x70 [ 68.373909][ T5359] ? __pfx_dump_stack_lvl+0x10/0x10 [ 68.376202][ T5359] ? __pfx__printk+0x10/0x10 [ 68.378127][ T5359] vpanic+0x281/0x750 [ 68.379739][ T5359] ? __pfx__printk+0x10/0x10 [ 68.381709][ T5359] ? __pfx_vpanic+0x10/0x10 [ 68.383689][ T5359] ? is_bpf_text_address+0x292/0x2b0 [ 68.385980][ T5359] panic+0xb9/0xc0 [ 68.387587][ T5359] ? __pfx_panic+0x10/0x10 [ 68.389498][ T5359] __warn+0x31b/0x4b0 [ 68.391068][ T5359] ? bdev_getblk+0x580/0x660 [ 68.393018][ T5359] ? bdev_getblk+0x580/0x660 [ 68.394941][ T5359] report_bug+0x2be/0x4f0 [ 68.396830][ T5359] ? bdev_getblk+0x580/0x660 [ 68.398737][ T5359] ? bdev_getblk+0x580/0x660 [ 68.400692][ T5359] ? bdev_getblk+0x582/0x660 [ 68.402704][ T5359] handle_bug+0x84/0x160 [ 68.404491][ T5359] exc_invalid_op+0x1a/0x50 [ 68.406415][ T5359] asm_exc_invalid_op+0x1a/0x20 [ 68.408494][ T5359] RIP: 0010:bdev_getblk+0x580/0x660 [ 68.410749][ T5359] Code: 26 fb ff ff e8 31 2d 78 ff 48 c7 c7 60 05 9a 8b 48 c7 c6 f5 e3 a0 8d 4c 89 fa 4c 89 e9 e8 98 0e e0 fe eb bd e8 11 2d 78 ff 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 74 08 48 89 [ 68.418694][ T5359] RSP: 0018:ffffc9000fd376b0 EFLAGS: 00010293 [ 68.421329][ T5359] RAX: ffffffff8247917f RBX: ffff888032185098 RCX: ffff88803db0a440 [ 68.424555][ T5359] RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000 [ 68.427820][ T5359] RBP: 0000000000000200 R08: 0000000000000000 R09: ffffffff821759fd [ 68.431192][ T5359] R10: 0000000000000406 R11: 0000000000000000 R12: ffff8880321859f0 [ 68.434398][ T5359] R13: ffff888032185080 R14: 0000000000000200 R15: 1ffff11006430a13 [ 68.437991][ T5359] ? fs_reclaim_acquire+0x7d/0x100 [ 68.440300][ T5359] ? bdev_getblk+0x57f/0x660 [ 68.442282][ T5359] ? __pfx__udf_err+0x10/0x10 [ 68.444268][ T5359] __bread_gfp+0x89/0x3c0 [ 68.446099][ T5359] udf_read_tagged+0xad/0xe00 [ 68.448137][ T5359] udf_check_anchor_block+0x99/0x550 [ 68.450492][ T5359] ? udf_get_last_block+0x286/0x360 [ 68.452818][ T5359] ? __pfx_udf_check_anchor_block+0x10/0x10 [ 68.455327][ T5359] udf_load_vrs+0x96d/0xf20 [ 68.457207][ T5359] ? __pfx_udf_load_vrs+0x10/0x10 [ 68.459237][ T5359] ? udf_get_last_session+0x100/0x200 [ 68.461414][ T5359] udf_fill_super+0x5ad/0x17a0 [ 68.463312][ T5359] ? __pfx_udf_fill_super+0x10/0x10 [ 68.465465][ T5359] ? set_blocksize+0x21e/0x500 [ 68.467431][ T5359] ? sb_set_blocksize+0x104/0x180 [ 68.469577][ T5359] ? setup_bdev_super+0x4c1/0x5b0 [ 68.471770][ T5359] get_tree_bdev_flags+0x40e/0x4d0 [ 68.473958][ T5359] ? __pfx_udf_fill_super+0x10/0x10 [ 68.476096][ T5359] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 68.478534][ T5359] vfs_get_tree+0x8f/0x2b0 [ 68.480417][ T5359] do_new_mount+0x2a2/0x9e0 [ 68.482334][ T5359] ? ns_capable+0x8a/0xf0 [ 68.484151][ T5359] ? __pfx_do_new_mount+0x10/0x10 [ 68.486279][ T5359] ? path_mount+0x61c/0xfe0 [ 68.488089][ T5359] ? user_path_at+0x44/0x60 [ 68.489948][ T5359] __se_sys_mount+0x317/0x410 [ 68.491892][ T5359] ? __pfx___se_sys_mount+0x10/0x10 [ 68.494090][ T5359] ? rcu_is_watching+0x15/0xb0 [ 68.495978][ T5359] ? do_syscall_64+0xbe/0x3b0 [ 68.497930][ T5359] ? __x64_sys_mount+0x20/0xc0 [ 68.499867][ T5359] do_syscall_64+0xfa/0x3b0 [ 68.501817][ T5359] ? lockdep_hardirqs_on+0x9c/0x150 [ 68.503949][ T5359] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.506492][ T5359] ? clear_bhb_loop+0x60/0xb0 [ 68.508525][ T5359] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.511070][ T5359] RIP: 0033:0x7fede418ebe9 [ 68.513369][ T5359] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 68.522556][ T5359] RSP: 002b:00007fede05f5038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 68.526233][ T5359] RAX: ffffffffffffffda RBX: 00007fede43c6090 RCX: 00007fede418ebe9 [ 68.529685][ T5359] RDX: 0000200000000080 RSI: 0000200000004a00 RDI: 0000200000000000 [ 68.532956][ T5359] RBP: 00007fede4211e19 R08: 0000000000000000 R09: 0000000000000000 [ 68.536350][ T5359] R10: 0000000002008087 R11: 0000000000000246 R12: 0000000000000000 [ 68.539964][ T5359] R13: 00007fede43c6128 R14: 00007fede43c6090 R15: 00007ffc6470aad8 [ 68.543306][ T5359] [ 68.544977][ T5359] Kernel Offset: disabled [ 68.546854][ T5359] Rebooting in 86400 seconds..