DUID 00:04:c7:bc:52:fc:07:c2:2f:22:cf:82:b1:d2:c3:2a:ec:fd forked to background, child pid 3179 [ 12.334836][ T3180] 8021q: adding VLAN 0 to HW filter on device bond0 [ 12.337779][ T3180] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 69.874369][ T24] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.133' (ECDSA) to the list of known hosts. executing program [ 195.099574][ T3612] kmemleak: 7 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 195.135687][ T3614] loop0: detected capacity change from 0 to 2048 [ 195.136719][ T3613] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 195.155166][ T3614] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. [ 195.166831][ T3614] EXT4-fs error (device loop0): ext4_validate_block_bitmap:398: comm syz-executor114: bg 0: block 5: invalid block bitmap [ 195.179773][ T3614] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 [ 195.192041][ T3614] EXT4-fs (loop0): This should not happen!! Data will be lost [ 195.192041][ T3614] [ 195.201700][ T3614] EXT4-fs (loop0): Total free blocks count 0 [ 195.207690][ T3614] EXT4-fs (loop0): Free/Dirty block details [ 195.213559][ T3614] EXT4-fs (loop0): free_blocks=0 [ 195.218592][ T3614] EXT4-fs (loop0): dirty_blocks=16 [ 195.223686][ T3614] EXT4-fs (loop0): Block reservation details [ 195.229684][ T3614] EXT4-fs (loop0): i_reserved_data_blocks=1 [ 195.237389][ T8] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 2 with max blocks 30 with error 28 executing program [ 200.464891][ T3618] loop0: detected capacity change from 0 to 2048 [ 200.474971][ T3618] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. [ 200.486739][ T3618] EXT4-fs error (device loop0): ext4_validate_block_bitmap:398: comm syz-executor114: bg 0: block 5: invalid block bitmap [ 200.499571][ T3618] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 [ 200.511832][ T3618] EXT4-fs (loop0): This should not happen!! Data will be lost [ 200.511832][ T3618] [ 200.521554][ T3618] EXT4-fs (loop0): Total free blocks count 0 [ 200.527570][ T3618] EXT4-fs (loop0): Free/Dirty block details [ 200.533450][ T3618] EXT4-fs (loop0): free_blocks=0 [ 200.538399][ T3618] EXT4-fs (loop0): dirty_blocks=16 [ 200.543568][ T3618] EXT4-fs (loop0): Block reservation details [ 200.549636][ T3618] EXT4-fs (loop0): i_reserved_data_blocks=1 [ 200.556803][ T25] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 2 with max blocks 30 with error 28 [ 201.646839][ T3612] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888111c8a1e0 (size 32): comm "syz-executor114", pid 3614, jiffies 4294956785 (age 12.710s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] __insert_pending.isra.0+0xaa/0xf0 [] ext4_es_insert_delayed_block+0x224/0x230 [] ext4_da_get_block_prep+0x3a5/0x7e0 [] __block_write_begin_int+0x1d6/0x9d0 [] ext4_da_write_inline_data_begin+0x39b/0xb10 [] ext4_da_write_begin+0x477/0x4e0 [] generic_perform_write+0xff/0x2b0 [] ext4_buffered_write_iter+0xbb/0x1d0 [] ext4_file_write_iter+0xbf/0xbf0 [] do_iter_readv_writev+0x147/0x210 [] do_iter_write+0xdc/0x300 [] vfs_iter_write+0x39/0x60 [] iter_file_splice_write+0x434/0x660 [] direct_splice_actor+0x4b/0x70 [] splice_direct_to_actor+0x149/0x350 [] do_splice_direct+0xe8/0x150 BUG: memory leak unreferenced object 0xffff888111c8a260 (size 32): comm "syz-executor114", pid 3618, jiffies 4294957317 (age 7.390s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] __insert_pending.isra.0+0xaa/0xf0 [] ext4_es_insert_delayed_block+0x224/0x230 [] ext4_da_get_block_prep+0x3a5/0x7e0 [] __block_write_begin_int+0x1d6/0x9d0 [] ext4_da_write_inline_data_begin+0x39b/0xb10 [] ext4_da_write_begin+0x477/0x4e0 [] generic_perform_write+0xff/0x2b0 [] ext4_buffered_write_iter+0xbb/0x1d0 [] ext4_file_write_iter+0xbf/0xbf0 [] do_iter_readv_writev+0x147/0x210 [] do_iter_write+0xdc/0x300 [] vfs_iter_write+0x39/0x60 [] iter_file_splice_write+0x434/0x660 [] direct_splice_actor+0x4b/0x70 [] splice_direct_to_actor+0x149/0x350 [] do_splice_direct+0xe8/0x150 [ 207.830799][ T3612] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)