program: syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000240)='./bus\x00', 0x8008, &(0x7f0000000100)=ANY=[@ANYRES64=0x0], 0xf, 0xab, &(0x7f0000010140)="$eJzs1zGKwkAYBeB/s7CbdptFsLBO4x08ilhqI1aK4A3Ei3gVj5DewiKtiCOYiIidRQT5vmLgzWPgtbM7brubIiKtIlLRme7T3Wy+GA8n9Rl8pCwifiMij4jeX50Pg7r7avqyWo7K6vv58c+69b0AAMDrsug/5nNqLk7NL/Aa/m993vI+AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgHe7BAAA//+dfyiL") r0 = bpf$PROG_LOAD(0x5, &(0x7f00000002c0)={0x12, 0x3, &(0x7f0000000700)=ANY=[@ANYBLOB="1800000001000000000000000000000095"], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x45, '\x00', 0x0, @cgroup_sock_addr=0xa, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffff1}, 0x94) r1 = fsopen(&(0x7f0000000000)='cgroup2\x00', 0x0) fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) r2 = fsmount(r1, 0x0, 0x0) bpf$BPF_LINK_CREATE(0x1c, &(0x7f0000000c80)={r0, r2, 0xa, 0x0, @void}, 0x10) prctl$PR_GET_TIMERSLACK(0x1e) ioctl$KVM_SET_IRQCHIP(r2, 0x8208ae63, &(0x7f00000004c0)={0x0, 0x0, @pic={0x0, 0x5, 0xf, 0x2, 0x0, 0x7, 0xc, 0x2, 0x6, 0x8, 0x1, 0x9, 0x7f, 0x6, 0x1, 0x80}}) r3 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='memory.events\x00', 0x275a, 0x0) r4 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x441, 0x108) write$RDMA_USER_CM_CMD_CREATE_ID(r4, &(0x7f0000000b80)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f, 0x2}}, 0x20) write$RDMA_USER_CM_CMD_NOTIFY(r3, &(0x7f0000000bc0)={0xf, 0x8, 0xfa00, {0xffffffffffffffff, 0x11}}, 0x10) r5 = bpf$BPF_BTF_LOAD(0x12, &(0x7f00000000c0)={&(0x7f0000000180)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x2c, 0x2c, 0x8, [@int={0x0, 0x0, 0x0, 0x1, 0x0, 0x4f, 0x0, 0x45}, @int={0xc, 0x0, 0x0, 0x1, 0x0, 0x59, 0x0, 0x8, 0x1}, @typedef={0x10}]}, {0x0, [0x0, 0x5f, 0x0, 0x0, 0x5f, 0x5f]}}, &(0x7f00000003c0)=""/221, 0x4c, 0xdd}, 0x28) open_by_handle_at(r5, &(0x7f0000000200)=@ocfs2_parent={0x18, 0x2, {{0xfffffff7, 0x8001, 0xe9}, {0x66, 0x2a, 0x5}}}, 0x200) r6 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x20442, 0x36) r7 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0) ioctl$LOOP_SET_STATUS(r7, 0x4c02, &(0x7f0000000300)={0x0, {}, 0x0, {}, 0x20007, 0x0, 0x200000, 0xd, "22536af39b7c7cb7435b0a43852dbc3a9ada34cc97af10fd4fcca15748328c53096c2f359e9ba743d30b59c491a7b3e74d938981061383374a1d79471a2d2dfe", "0410b1617b6217917d72322c0c5aa9263626c0240010f9db74161ccff2c5cf5e", [0x3, 0x800]}) pwrite64(r6, &(0x7f0000000140)='2', 0xfdef, 0xe7c) [ 88.988895][ T5325] Bluetooth: hci0: command tx timeout [ 89.099566][ T5349] loop0: detected capacity change from 0 to 64 [ 89.218940][ T5349] loop0: detected capacity change from 64 to 11 [ 89.237324][ T5349] Dev loop0: unable to read RDB block 11 [ 89.239854][ T5349] loop0: unable to read partition table [ 89.242547][ T5349] loop0: partition table beyond EOD, truncated [ 89.267359][ T5350] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN NOPTI [ 89.272528][ T5350] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 89.276326][ T5350] CPU: 0 UID: 0 PID: 5350 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 89.280325][ T5350] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 89.284913][ T5350] RIP: 0010:bfs_get_block+0x589/0xae0 [ 89.287373][ T5350] Code: f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 20 71 8b ff 49 8b 5d 20 4d 8d 66 28 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 48 8b 6c 24 18 74 08 4c 89 e7 e8 f4 70 8b ff 4c 89 ef [ 89.295633][ T5350] RSP: 0018:ffffc90008a6f638 EFLAGS: 00010206 [ 89.298281][ T5350] RAX: 0000000000000005 RBX: 0000000000000200 RCX: dffffc0000000000 [ 89.301723][ T5350] RDX: ffffc90021623000 RSI: 0000000000000293 RDI: ffff88801240ab00 [ 89.305212][ T5350] RBP: ffff88803216ce70 R08: ffffea000118a677 R09: 1ffffd40002314ce [ 89.308708][ T5350] R10: dffffc0000000000 R11: fffff940002314cf R12: 0000000000000028 [ 89.312100][ T5350] R13: ffff88801240aae0 R14: 0000000000000000 R15: 000000000000000a [ 89.315445][ T5350] FS: 00007eff50a886c0(0000) GS:ffff88808d239000(0000) knlGS:0000000000000000 [ 89.319240][ T5350] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.322067][ T5350] CR2: 00007eff50a87fc8 CR3: 00000000336c2000 CR4: 0000000000352ef0 [ 89.325312][ T5350] Call Trace: [ 89.326667][ T5350] [ 89.327810][ T5350] __block_write_begin_int+0x6b5/0x1900 [ 89.329966][ T5350] ? __pfx_bfs_get_block+0x10/0x10 [ 89.332032][ T5350] ? __pfx___block_write_begin_int+0x10/0x10 [ 89.334441][ T5350] ? __pfx_bfs_get_block+0x10/0x10 [ 89.336963][ T5350] block_write_begin+0x8d/0x120 [ 89.339303][ T5350] ? bfs_write_begin+0x1e/0xd0 [ 89.341390][ T5350] bfs_write_begin+0x35/0xd0 [ 89.343567][ T5350] generic_perform_write+0x2c5/0x900 [ 89.345861][ T5350] ? __pfx_generic_perform_write+0x10/0x10 [ 89.348338][ T5350] ? file_update_time_flags+0x2cb/0x4e0 [ 89.350685][ T5350] ? __generic_file_write_iter+0xf9/0x230 [ 89.353352][ T5350] ? generic_file_write_iter+0x103/0x550 [ 89.355870][ T5350] generic_file_write_iter+0x117/0x550 [ 89.358154][ T5350] ? __pfx_generic_file_write_iter+0x10/0x10 [ 89.360701][ T5350] ? __lock_acquire+0x6b6/0x2cf0 [ 89.362849][ T5350] ? __pfx_aa_file_perm+0x10/0x10 [ 89.365042][ T5350] ? rcu_read_lock_any_held+0xb3/0x120 [ 89.367388][ T5350] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 89.369929][ T5350] vfs_write+0x5c9/0xb30 [ 89.371916][ T5350] ? __pfx_generic_file_write_iter+0x10/0x10 [ 89.374369][ T5350] ? __pfx_vfs_write+0x10/0x10 [ 89.376672][ T5350] ? __fget_files+0x2a/0x420 [ 89.379131][ T5350] __x64_sys_pwrite64+0x193/0x220 [ 89.381883][ T5350] ? __pfx___x64_sys_pwrite64+0x10/0x10 [ 89.384863][ T5350] ? do_syscall_64+0xbe/0xf80 [ 89.387428][ T5350] do_syscall_64+0xfa/0xf80 [ 89.389802][ T5350] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.393000][ T5350] ? clear_bhb_loop+0x60/0xb0 [ 89.395252][ T5350] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.397797][ T5350] RIP: 0033:0x7eff4fb8f7c9 [ 89.399759][ T5350] 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 [ 89.408285][ T5350] RSP: 002b:00007eff50a88038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 89.411954][ T5350] RAX: ffffffffffffffda RBX: 00007eff4fde6090 RCX: 00007eff4fb8f7c9 [ 89.415371][ T5350] RDX: 000000000000fdef RSI: 0000200000000140 RDI: 000000000000000a [ 89.419079][ T5350] RBP: 00007eff4fc13f91 R08: 0000000000000000 R09: 0000000000000000 [ 89.422827][ T5350] R10: 0000000000000e7c R11: 0000000000000246 R12: 0000000000000000 [ 89.426524][ T5350] R13: 00007eff4fde6128 R14: 00007eff4fde6090 R15: 00007fff33f5bc48 [ 89.430028][ T5350] [ 89.431779][ T5350] Modules linked in: [ 89.434176][ T5350] ---[ end trace 0000000000000000 ]--- [ 89.443755][ T5349] loop_reread_partitions: partition scan of loop0 ("Sj||C[ [ 89.443755][ T5349] C-:4̗O̡WH2S l/5C YđM7JyG--) failed (rc=-5) [ 89.463422][ T5350] RIP: 0010:bfs_get_block+0x589/0xae0 [ 89.486396][ T5350] Code: f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 20 71 8b ff 49 8b 5d 20 4d 8d 66 28 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 48 8b 6c 24 18 74 08 4c 89 e7 e8 f4 70 8b ff 4c 89 ef [ 89.499668][ T5350] RSP: 0018:ffffc90008a6f638 EFLAGS: 00010206 [ 89.502444][ T5350] RAX: 0000000000000005 RBX: 0000000000000200 RCX: dffffc0000000000 [ 89.506345][ T5350] RDX: ffffc90021623000 RSI: 0000000000000293 RDI: ffff88801240ab00 [ 89.509971][ T5350] RBP: ffff88803216ce70 R08: ffffea000118a677 R09: 1ffffd40002314ce [ 89.514039][ T5350] R10: dffffc0000000000 R11: fffff940002314cf R12: 0000000000000028 [ 89.518441][ T5350] R13: ffff88801240aae0 R14: 0000000000000000 R15: 000000000000000a [ 89.522174][ T5350] FS: 00007eff50a886c0(0000) GS:ffff88808d239000(0000) knlGS:0000000000000000 [ 89.526773][ T5350] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.529776][ T5350] CR2: 0000556e06e47178 CR3: 00000000336c2000 CR4: 0000000000352ef0 [ 89.533556][ T5350] Kernel panic - not syncing: Fatal exception [ 89.536871][ T5350] Kernel Offset: disabled [ 89.538633][ T5350] Rebooting in 86400 seconds..