program: syz_mount_image$ext4(&(0x7f0000000000)='ext4\x00', &(0x7f0000000480)='./file0\x00', 0x0, &(0x7f0000000140)={[{@nouid32}]}, 0x1, 0x461, &(0x7f0000000540)="$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") r0 = open(&(0x7f0000000240)='./file1\x00', 0x145142, 0x0) syz_usb_connect(0x0, 0x36, 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x105042, 0x1db) open(&(0x7f0000000180)='./bus\x00', 0x14937e, 0x111) mount(&(0x7f0000000280)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x5000, 0x0) r2 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0) ioctl$LOOP_SET_STATUS64(r2, 0x4c04, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0, 0x8005, 0x0, 0x0, 0x15, 0x0, "ef359f413bb93852f7d6a4ae6dddfbd1ce5d29c2ee5e5ca9000ff8ee09e737ff0edf110ff4117639c2eb4b78c660e677df701905b9aafab4afaaf755a3f6a004", "036c47c6780820d1cbf7966d61fdcf335263bd9bffbcc2542ded71038259ca171ce1a311ef54ec32d71e14ef3dc177e9b48b00", "f28359738e229a4c66810000000000d300e6d602000000000000000000000001", [0x200]}) writev(r1, &(0x7f0000000140)=[{&(0x7f0000001200)="10", 0x60000}], 0x1) sendfile(r0, r0, 0x0, 0x800000009) syz_genetlink_get_family_id$nl80211(&(0x7f0000000080), r0) [ 85.327175][ T5328] Bluetooth: hci0: command tx timeout [ 85.366030][ T5350] loop0: detected capacity change from 0 to 512 [ 85.431663][ T5350] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 85.464909][ T25] audit: type=1800 audit(1752181853.918:2): pid=5350 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.0" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 85.484318][ T25] audit: type=1800 audit(1752181853.938:3): pid=5350 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.0" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 85.507467][ T5350] loop0: detected capacity change from 512 to 64 [ 85.528825][ T5350] syz.0.0: attempt to access beyond end of device [ 85.528825][ T5350] loop0: rw=2049, sector=88, nr_sectors = 24 limit=64 [ 85.534029][ T5350] EXT4-fs warning (device loop0): ext4_end_bio:372: I/O error 10 writing to inode 15 starting block 44) [ 85.551482][ T5350] Buffer I/O error on device loop0, logical block 44 [ 85.554589][ T5350] Buffer I/O error on device loop0, logical block 45 [ 85.557438][ T5350] Buffer I/O error on device loop0, logical block 46 [ 85.560177][ T5350] Buffer I/O error on device loop0, logical block 47 [ 85.566305][ T5350] Buffer I/O error on device loop0, logical block 48 [ 85.569023][ T5350] Buffer I/O error on device loop0, logical block 49 [ 85.571914][ T5350] Buffer I/O error on device loop0, logical block 50 [ 85.574721][ T5350] Buffer I/O error on device loop0, logical block 51 [ 85.579444][ T5350] Buffer I/O error on device loop0, logical block 52 [ 85.582691][ T5350] Buffer I/O error on device loop0, logical block 53 [ 85.698144][ T5350] ------------[ cut here ]------------ [ 85.700667][ T5350] kernel BUG at fs/ext4/mballoc.c:4685! [ 85.703034][ T5350] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 85.705818][ T5350] CPU: 0 UID: 0 PID: 5350 Comm: syz.0.0 Not tainted 6.16.0-rc5-syzkaller-00121-gbc9ff192a6c9 #0 PREEMPT(full) [ 85.710315][ T5350] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 85.714708][ T5350] RIP: 0010:ext4_mb_use_inode_pa+0x6c1/0x720 [ 85.717117][ T5350] Code: e8 04 5e ab ff 48 ba 00 00 00 00 00 fc ff df e9 da fa ff ff e8 70 db 47 ff 90 0f 0b e8 68 db 47 ff 90 0f 0b e8 60 db 47 ff 90 <0f> 0b e8 58 db 47 ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 [ 85.725152][ T5350] RSP: 0018:ffffc9000d3a68c8 EFLAGS: 00010287 [ 85.727792][ T5350] RAX: ffffffff82785b10 RBX: 00000000ffffffcc RCX: 0000000000100000 [ 85.731369][ T5350] RDX: ffffc9000ddaa000 RSI: 0000000000011e46 RDI: 0000000000011e47 [ 85.734912][ T5350] RBP: 1ffff110024e2058 R08: ffff888012711503 R09: 1ffff110024e22a0 [ 85.738188][ T5350] R10: dffffc0000000000 R11: ffffed10024e22a1 R12: 0000000000000000 [ 85.741435][ T5350] R13: 0000000000000054 R14: 1ffff110024e22a3 R15: ffff888012711518 [ 85.744900][ T5350] FS: 00007fcf907ae6c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000 [ 85.748526][ T5350] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.751435][ T5350] CR2: 00007fcf906e7d60 CR3: 00000000435c9000 CR4: 0000000000352ef0 [ 85.755121][ T5350] Call Trace: [ 85.756683][ T5350] [ 85.758078][ T5350] ext4_mb_use_preallocated+0x660/0x13f0 [ 85.760458][ T5350] ext4_mb_new_blocks+0x5b4/0x46a0 [ 85.762481][ T5350] ? ext4_new_meta_blocks+0x2b3/0x3c0 [ 85.764931][ T5350] ? __pfx_ext4_new_meta_blocks+0x10/0x10 [ 85.767370][ T5350] ? __pfx_ext4_mb_new_blocks+0x10/0x10 [ 85.769736][ T5350] ? ext4_block_to_path+0x297/0x6f0 [ 85.772094][ T5350] ext4_ind_map_blocks+0xe21/0x21b0 [ 85.774400][ T5350] ? __pfx_ext4_ind_map_blocks+0x10/0x10 [ 85.776806][ T5350] ? __pfx_down_write+0x10/0x10 [ 85.779119][ T5350] ? ext4_es_lookup_extent+0x622/0xa70 [ 85.781601][ T5350] ext4_map_blocks+0x8d8/0x18d0 [ 85.783684][ T5350] ? __pfx_ext4_map_blocks+0x10/0x10 [ 85.785883][ T5350] ? rcu_is_watching+0x15/0xb0 [ 85.788086][ T5350] ext4_do_writepages+0x1703/0x3f30 [ 85.790453][ T5350] ? lockdep_hardirqs_on+0x9c/0x150 [ 85.792737][ T5350] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 85.795333][ T5350] ? __pfx_ext4_do_writepages+0x10/0x10 [ 85.797928][ T5350] ? __lock_acquire+0xab9/0xd20 [ 85.800121][ T5350] ? __lock_acquire+0xab9/0xd20 [ 85.802537][ T5350] ? rcu_read_lock_any_held+0xb3/0x120 [ 85.805007][ T5350] ext4_writepages+0x205/0x350 [ 85.807002][ T5350] ? __pfx_ext4_writepages+0x10/0x10 [ 85.808996][ T5350] ? __lock_acquire+0xab9/0xd20 [ 85.811104][ T5350] ? __pfx_ext4_writepages+0x10/0x10 [ 85.813519][ T5350] do_writepages+0x32e/0x550 [ 85.815658][ T5350] ? do_raw_spin_unlock+0x4d/0x240 [ 85.817820][ T5350] file_write_and_wait_range+0x22c/0x330 [ 85.820361][ T5350] ? __pfx_file_write_and_wait_range+0x10/0x10 [ 85.823184][ T5350] generic_buffers_fsync_noflush+0x6c/0x180 [ 85.825767][ T5350] ext4_sync_file+0x332/0xb20 [ 85.827723][ T5350] ext4_buffered_write_iter+0x2ca/0x3a0 [ 85.830139][ T5350] ext4_file_write_iter+0x298/0x1bc0 [ 85.832368][ T5350] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 85.834671][ T5350] do_iter_readv_writev+0x56b/0x7f0 [ 85.836824][ T5350] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 85.839330][ T5350] ? rcu_read_lock_any_held+0xb3/0x120 [ 85.841705][ T5350] vfs_writev+0x31a/0x960 [ 85.843594][ T5350] ? __lock_acquire+0xab9/0xd20 [ 85.845883][ T5350] ? __pfx_vfs_writev+0x10/0x10 [ 85.848054][ T5350] ? __fget_files+0x2a/0x420 [ 85.850171][ T5350] ? __fget_files+0x3a0/0x420 [ 85.852191][ T5350] ? __fget_files+0x2a/0x420 [ 85.853968][ T5350] do_writev+0x14d/0x2d0 [ 85.855562][ T5350] ? __pfx_do_writev+0x10/0x10 [ 85.857434][ T5350] ? rcu_is_watching+0x15/0xb0 [ 85.859345][ T5350] ? do_syscall_64+0xbe/0x3b0 [ 85.861182][ T5350] do_syscall_64+0xfa/0x3b0 [ 85.863015][ T5350] ? lockdep_hardirqs_on+0x9c/0x150 [ 85.865264][ T5350] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.867894][ T5350] ? clear_bhb_loop+0x60/0xb0 [ 85.870052][ T5350] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.872739][ T5350] RIP: 0033:0x7fcf8f98e929 [ 85.874708][ 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 [ 85.882984][ T5350] RSP: 002b:00007fcf907ae038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 85.886642][ T5350] RAX: ffffffffffffffda RBX: 00007fcf8fbb5fa0 RCX: 00007fcf8f98e929 [ 85.889877][ T5350] RDX: 0000000000000001 RSI: 0000200000000140 RDI: 0000000000000005 [ 85.893521][ T5350] RBP: 00007fcf8fa10b39 R08: 0000000000000000 R09: 0000000000000000 [ 85.897095][ T5350] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.900571][ T5350] R13: 0000000000000000 R14: 00007fcf8fbb5fa0 R15: 00007ffd2e8c7448 [ 85.903940][ T5350] [ 85.905292][ T5350] Modules linked in: [ 85.907515][ T5350] ---[ end trace 0000000000000000 ]--- [ 85.909897][ T5350] RIP: 0010:ext4_mb_use_inode_pa+0x6c1/0x720 [ 85.912516][ T5350] Code: e8 04 5e ab ff 48 ba 00 00 00 00 00 fc ff df e9 da fa ff ff e8 70 db 47 ff 90 0f 0b e8 68 db 47 ff 90 0f 0b e8 60 db 47 ff 90 <0f> 0b e8 58 db 47 ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 [ 85.921079][ T5350] RSP: 0018:ffffc9000d3a68c8 EFLAGS: 00010287 [ 85.923846][ T5350] RAX: ffffffff82785b10 RBX: 00000000ffffffcc RCX: 0000000000100000 [ 85.927454][ T5350] RDX: ffffc9000ddaa000 RSI: 0000000000011e46 RDI: 0000000000011e47 [ 85.931091][ T5350] RBP: 1ffff110024e2058 R08: ffff888012711503 R09: 1ffff110024e22a0 [ 85.934532][ T5350] R10: dffffc0000000000 R11: ffffed10024e22a1 R12: 0000000000000000 [ 85.938175][ T5350] R13: 0000000000000054 R14: 1ffff110024e22a3 R15: ffff888012711518 [ 85.942359][ T5350] FS: 00007fcf907ae6c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000 [ 85.946874][ T5350] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.949727][ T5350] CR2: 00007fcf906e7d60 CR3: 00000000435c9000 CR4: 0000000000352ef0 [ 85.953251][ T5350] Kernel panic - not syncing: Fatal exception [ 85.956212][ T5350] Kernel Offset: disabled [ 85.958188][ T5350] Rebooting in 86400 seconds..