program: mknodat(0xffffffffffffff9c, &(0x7f00000000c0)='./file2\x00', 0x81c0, 0x0) prctl$PR_SET_NO_NEW_PRIVS(0x26, 0x1) execveat(0xffffffffffffff9c, &(0x7f0000000280)='./file2\x00', 0x0, 0x0, 0x0) syz_open_dev$usbfs(&(0x7f0000000180), 0x3, 0xa483) sendmsg$nl_xfrm(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000000)={0x0}}, 0x0) r0 = userfaultfd(0x1) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f00000000c0)) syz_mount_image$ext4(&(0x7f00000003c0)='ext4\x00', &(0x7f0000000480)='./file1\x00', 0x10, &(0x7f0000000140)={[{@norecovery}]}, 0xed, 0x474, &(0x7f0000000b80)="$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") open(&(0x7f0000000180)='./bus\x00', 0x14927e, 0x0) mount(&(0x7f0000000280)=@loop={'/dev/loop', 0x0}, &(0x7f00000003c0)='./bus\x00', 0x0, 0x5000, 0x0) r1 = open(&(0x7f0000000000)='./bus\x00', 0x8000, 0xa0) ioctl$LOOP_SET_STATUS64(r1, 0x4c04, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0, 0x8005, 0x0, 0x0, 0x14, 0xd, "ef359f413bb9386ff7d6a4ae6dddfbd1ce5d29c2ee5e5ca9000ff8ee09e7376b7a5ff537ed73ac58818d78c660e677df8dc905b90242b7c528a076d2f6a00400", "036c5bc6780820d1cbf7966d61fdcf335263bd9b0abdc2542ded71038259ca171ce1a311ef545032d71e14ef3dc177e9b48b001d00", "f28359738e229a4c66810000000000d300e6d602000000000000000000000001", [0x8]}) r2 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x0) pwritev2(r2, &(0x7f00000001c0)=[{&(0x7f0000000080)="ff", 0xfdef}], 0x1, 0xe7b, 0x0, 0x86) mprotect(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x1) ioctl$UFFDIO_COPY(r0, 0xc028aa05, &(0x7f0000000180)={&(0x7f00002b9000/0x400000)=nil, &(0x7f00003ab000/0x2000)=nil, 0x400000, 0x6, 0x2}) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000)='./cgroup.net/syz0\x00', 0x1ff) r3 = syz_open_dev$radio(&(0x7f0000000000), 0xffffffffffffffff, 0x2) ioctl$VIDIOC_S_EXT_CTRLS(r3, 0xc0205649, &(0x7f0000000080)={0x0, 0x1, 0x6, 0xffffffffffffffff, 0x0, &(0x7f00000000c0)={0x98f90a, 0x78, '\x00', @string=&(0x7f0000000040)=0x4}}) r4 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) r5 = openat$cgroup_ro(r4, &(0x7f0000000080)='blkio.bfq.sectors_recursive\x00', 0x0, 0x0) preadv(r5, &(0x7f0000000600)=[{&(0x7f0000000500)=""/234, 0xea}], 0x1, 0x0, 0x0) [ 94.156070][ T5277] Bluetooth: hci0: command tx timeout [ 94.301189][ T5315] process 'syz.0.0' launched './file2' with NULL argv: empty string added [ 94.360998][ T5315] loop0: detected capacity change from 0 to 512 [ 94.403816][ T5315] EXT4-fs (loop0): invalid journal inode [ 94.407095][ T5315] EXT4-fs (loop0): can't get journal size [ 94.473002][ T5315] EXT4-fs (loop0): 1 truncate cleaned up [ 94.479045][ T5315] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 94.517161][ T5315] loop0: detected capacity change from 512 to 64 [ 94.561957][ T1055] kworker/u4:8: attempt to access beyond end of device [ 94.561957][ T1055] loop0: rw=1, sector=386, nr_sectors = 2 limit=64 [ 94.567944][ T1055] EXT4-fs warning (device loop0): ext4_end_bio:364: I/O error 10 writing to inode 15 starting block 193) [ 94.595465][ T1055] Buffer I/O error on device loop0, logical block 193 [ 94.601978][ T1055] kworker/u4:8: attempt to access beyond end of device [ 94.601978][ T1055] loop0: rw=1, sector=392, nr_sectors = 2 limit=64 [ 94.639916][ T1055] EXT4-fs warning (device loop0): ext4_end_bio:364: I/O error 10 writing to inode 15 starting block 196) [ 94.648071][ T1055] Buffer I/O error on device loop0, logical block 196 [ 94.655424][ T5315] syz.0.0: attempt to access beyond end of device [ 94.655424][ T5315] loop0: rw=2049, sector=394, nr_sectors = 16 limit=64 [ 94.663564][ T1055] EXT4-fs error (device loop0): ext4_do_update_inode:5801: inode #15: comm kworker/u4:8: corrupted inode contents [ 94.681577][ T1055] EXT4-fs error (device loop0): ext4_dirty_inode:6731: inode #15: comm kworker/u4:8: mark_inode_dirty error [ 94.690070][ T1055] EXT4-fs error (device loop0): ext4_do_update_inode:5801: inode #15: comm kworker/u4:8: corrupted inode contents [ 94.696675][ T1055] EXT4-fs error (device loop0): ext4_dirty_inode:6731: inode #15: comm kworker/u4:8: mark_inode_dirty error [ 94.703025][ T5315] EXT4-fs warning (device loop0): ext4_end_bio:364: I/O error 10 writing to inode 15 starting block 197) [ 94.708434][ T5315] Buffer I/O error on device loop0, logical block 197 [ 94.711385][ T5315] Buffer I/O error on device loop0, logical block 198 [ 94.714247][ T5315] Buffer I/O error on device loop0, logical block 199 [ 94.716770][ T5315] Buffer I/O error on device loop0, logical block 200 [ 94.721668][ T5315] Buffer I/O error on device loop0, logical block 201 [ 94.724505][ T5315] Buffer I/O error on device loop0, logical block 202 [ 94.727389][ T5315] Buffer I/O error on device loop0, logical block 203 [ 94.730123][ T5315] Buffer I/O error on device loop0, logical block 204 [ 94.838629][ T5315] EXT4-fs error (device loop0): ext4_do_update_inode:5801: inode #15: comm syz.0.0: corrupted inode contents [ 94.845017][ T5315] EXT4-fs error (device loop0): ext4_dirty_inode:6731: inode #15: comm syz.0.0: mark_inode_dirty error [ 94.851145][ T5315] ------------[ cut here ]------------ [ 94.854399][ T5315] kernel BUG at fs/ext4/mballoc.c:4781! [ 94.856952][ T5315] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 94.859614][ T5315] CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 94.863045][ T5315] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 94.867019][ T5315] RIP: 0010:ext4_mb_use_inode_pa+0x6bf/0x720 [ 94.869862][ T5315] Code: e8 e6 0f a2 ff 48 ba 00 00 00 00 00 fc ff df e9 d7 fa ff ff e8 a2 c7 30 ff 90 0f 0b e8 9a c7 30 ff 90 0f 0b e8 92 c7 30 ff 90 <0f> 0b e8 8a c7 30 ff 90 0f 0b 48 8b 0c 24 48 83 c1 54 80 e1 07 80 [ 94.877108][ T5315] RSP: 0018:ffffc9000f0ae920 EFLAGS: 00010287 [ 94.879498][ T5315] RAX: ffffffff82966d2e RBX: 00000000ffffffee RCX: 0000000000100000 [ 94.882266][ T5315] RDX: ffffc9000e892000 RSI: 0000000000009dff RDI: 0000000000009e00 [ 94.885264][ T5315] RBP: 1ffff110087ac4b5 R08: ffff888043d6707b R09: 1ffff110087ace0f [ 94.888853][ T5315] R10: dffffc0000000000 R11: ffffed10087ace10 R12: 0000000000000000 [ 94.891841][ T5315] R13: 0000000000000014 R14: 1ffff110087ace12 R15: ffff888043d67090 [ 94.894702][ T5315] FS: 00007fb2bdbf56c0(0000) GS:ffff88808c30a000(0000) knlGS:0000000000000000 [ 94.898020][ T5315] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.900754][ T5315] CR2: 0000200000000608 CR3: 000000003ffb7000 CR4: 0000000000352ef0 [ 94.903975][ T5315] Call Trace: [ 94.905424][ T5315] [ 94.906632][ T5315] ext4_mb_use_preallocated+0x638/0x13e0 [ 94.909099][ T5315] ext4_mb_new_blocks+0x5a0/0x4530 [ 94.911335][ T5315] ? do_raw_spin_unlock+0x4d/0x200 [ 94.913558][ T5315] ? _raw_spin_unlock+0x28/0x50 [ 94.915663][ T5315] ? __pfx_ext4_new_meta_blocks+0x10/0x10 [ 94.918047][ T5315] ? __pfx_ext4_mb_new_blocks+0x10/0x10 [ 94.920439][ T5315] ? ext4_block_to_path+0x382/0x700 [ 94.922605][ T5315] ext4_ind_map_blocks+0xe96/0x22a0 [ 94.924793][ T5315] ? __pfx_ext4_ind_map_blocks+0x10/0x10 [ 94.927083][ T5315] ? kasan_save_track+0x4f/0x80 [ 94.929163][ T5315] ? ext4_map_blocks+0x77d/0x12c0 [ 94.931466][ T5315] ? down_write+0x16b/0x200 [ 94.933469][ T5315] ext4_map_create_blocks+0xbb/0x530 [ 94.935572][ T5315] ? ext4_fc_track_inode+0xf3/0x3f0 [ 94.937812][ T5315] ext4_map_blocks+0x791/0x12c0 [ 94.939794][ T5315] ? __pfx_ext4_map_blocks+0x10/0x10 [ 94.941919][ T5315] ext4_do_writepages+0x1901/0x4770 [ 94.944067][ T5315] ? __lock_acquire+0x683/0x2cf0 [ 94.946023][ T5315] ? __pfx_ext4_do_writepages+0x10/0x10 [ 94.948104][ T5315] ? __lock_acquire+0x683/0x2cf0 [ 94.950128][ T5315] ? __free_object+0x432/0x5d0 [ 94.952225][ T5315] ? lockdep_hardirqs_on+0x7b/0x110 [ 94.954356][ T5315] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 94.956741][ T5315] ? debug_object_free+0x29c/0x340 [ 94.958954][ T5315] ? ext4_writepages+0x205/0x3b0 [ 94.960993][ T5315] ? ext4_writepages+0x205/0x3b0 [ 94.963200][ T5315] ext4_writepages+0x241/0x3b0 [ 94.965272][ T5315] ? __pfx_ext4_writepages+0x10/0x10 [ 94.967365][ T5315] ? __pfx_ext4_writepages+0x10/0x10 [ 94.969380][ T5315] do_writepages+0x338/0x560 [ 94.971259][ T5315] ? do_raw_spin_unlock+0x4d/0x200 [ 94.973358][ T5315] file_write_and_wait_range+0x36e/0x440 [ 94.975650][ T5315] ? __pfx_file_write_and_wait_range+0x10/0x10 [ 94.978276][ T5315] ext4_sync_file+0x252/0xa40 [ 94.980331][ T5315] ext4_buffered_write_iter+0x2d0/0x380 [ 94.982598][ T5315] ext4_file_write_iter+0xae4/0x1cd0 [ 94.984824][ T5315] ? futex_unqueue+0x22/0x240 [ 94.986739][ T5315] ? __lock_acquire+0x683/0x2cf0 [ 94.988783][ T5315] ? __futex_wait+0x358/0x400 [ 94.990775][ T5315] ? __pfx_aa_file_perm+0x10/0x10 [ 94.992895][ T5315] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 94.995215][ T5315] ? __pfx___futex_wait+0x10/0x10 [ 94.997279][ T5315] do_iter_readv_writev+0x612/0x8c0 [ 94.999385][ T5315] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 95.001681][ T5315] vfs_writev+0x343/0x990 [ 95.003494][ T5315] ? __pfx_vfs_writev+0x10/0x10 [ 95.005597][ T5315] ? __fget_files+0x2a/0x420 [ 95.007625][ T5315] ? __fget_files+0x3a2/0x420 [ 95.009591][ T5315] ? __fget_files+0x2a/0x420 [ 95.011447][ T5315] __se_sys_pwritev2+0x177/0x2a0 [ 95.013506][ T5315] ? __pfx___se_sys_pwritev2+0x10/0x10 [ 95.015700][ T5315] ? __x64_sys_pwritev2+0x20/0xc0 [ 95.019121][ T5315] do_syscall_64+0x166/0x520 [ 95.021221][ T5315] ? trace_irq_disable+0x3b/0x140 [ 95.023275][ T5315] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 95.025887][ T5315] ? clear_bhb_loop+0x70/0xc0 [ 95.027821][ T5315] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 95.030238][ T5315] RIP: 0033:0x7fb2c179e0d9 [ 95.032162][ T5315] 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 [ 95.040103][ T5315] RSP: 002b:00007fb2bdbf4fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 [ 95.043509][ T5315] RAX: ffffffffffffffda RBX: 00007fb2c1a25fa0 RCX: 00007fb2c179e0d9 [ 95.046718][ T5315] RDX: 0000000000000001 RSI: 00002000000001c0 RDI: 0000000000000007 [ 95.050039][ T5315] RBP: 00007fb2c1835024 R08: 0000000000000000 R09: 0000000000000086 [ 95.053364][ T5315] R10: 0000000000000e7b R11: 0000000000000246 R12: 0000000000000000 [ 95.056656][ T5315] R13: 00007fb2c1a26038 R14: 00007fb2c1a25fa0 R15: 00007ffcbe53fd28 [ 95.059899][ T5315] [ 95.061230][ T5315] Modules linked in: [ 95.063606][ T5315] ---[ end trace 0000000000000000 ]--- [ 95.066451][ T5315] RIP: 0010:ext4_mb_use_inode_pa+0x6bf/0x720 [ 95.068954][ T5315] Code: e8 e6 0f a2 ff 48 ba 00 00 00 00 00 fc ff df e9 d7 fa ff ff e8 a2 c7 30 ff 90 0f 0b e8 9a c7 30 ff 90 0f 0b e8 92 c7 30 ff 90 <0f> 0b e8 8a c7 30 ff 90 0f 0b 48 8b 0c 24 48 83 c1 54 80 e1 07 80 [ 95.076948][ T5315] RSP: 0018:ffffc9000f0ae920 EFLAGS: 00010287 [ 95.079475][ T5315] RAX: ffffffff82966d2e RBX: 00000000ffffffee RCX: 0000000000100000 [ 95.082815][ T5315] RDX: ffffc9000e892000 RSI: 0000000000009dff RDI: 0000000000009e00 [ 95.086166][ T5315] RBP: 1ffff110087ac4b5 R08: ffff888043d6707b R09: 1ffff110087ace0f [ 95.089830][ T5315] R10: dffffc0000000000 R11: ffffed10087ace10 R12: 0000000000000000 [ 95.093375][ T5315] R13: 0000000000000014 R14: 1ffff110087ace12 R15: ffff888043d67090 [ 95.097025][ T5315] FS: 00007fb2bdbf56c0(0000) GS:ffff88808c30a000(0000) knlGS:0000000000000000 [ 95.100721][ T5315] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.103395][ T5315] CR2: 0000200000000608 CR3: 000000003ffb7000 CR4: 0000000000352ef0 [ 95.106597][ T5315] Kernel panic - not syncing: Fatal exception [ 95.109411][ T5315] Kernel Offset: disabled [ 95.111168][ T5315] Rebooting in 86400 seconds..