syzbot


Applied filters: Label=subsystems:ext4 (drop)
Title Repro Cause bisect Fix bisect Count Last Reported Patched Closed Patch
kernel BUG in ext4_do_writepages ext4 C error 1182 1h32m 542d 0/28 never ext4: fix race condition between buffer write and page_mkwrite
kernel BUG in ext4_write_inline_data ext4 C error 35 4d23h 453d 0/28 never ext4: fix race condition between buffer write and page_mkwrite
INFO: task hung in ext4_quota_write ext4 C inconclusive 22 58d 163d 26/28 7d01h 0a46ef234756 ext4: do not create EA inode under buffer lock
WARNING in mb_cache_destroy ext4 C done 738 24d 43d 26/28 7d01h 0c0b4a49d3e7 ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find()
KASAN: slab-use-after-free Read in fsnotify ext4 C error 3 56d 62d 26/28 7d01h 795bb82d12a1 fsnotify: fix UAF from FS_ERROR event on a shutting down filesystem
general protection fault in jbd2__journal_start ext4 C error 3 84d 138d 26/28 20d f2e812c1522d xfs: don't use current->journal_info
possible deadlock in ext4_xattr_inode_iget (2) ext4 C done done 22 148d 341d 26/28 84d 6f861765464f fs: Block writes to mounted block devices
general protection fault in common_perm_cond apparmor ext4 C error done 1 164d 328d 26/28 111d 6f861765464f fs: Block writes to mounted block devices
WARNING in ext4_discard_allocated_blocks ext4 C inconclusive done 4 157d 275d 26/28 111d 6f861765464f fs: Block writes to mounted block devices
KASAN: use-after-free Read in ext4_search_dir prio:low ext4 C error done 20 156d 398d 26/28 111d 6f861765464f fs: Block writes to mounted block devices
WARNING in lock_two_nondirectories ext4 C 3 169d 180d 26/28 116d 6f861765464f fs: Block writes to mounted block devices
general protection fault in utf8nlookup ext4 C done done 3 159d 266d 26/28 116d 6f861765464f fs: Block writes to mounted block devices
kernel BUG in ext4_enable_quotas ext4 C error done 16 161d 341d 26/28 116d 6f861765464f fs: Block writes to mounted block devices
KASAN: out-of-bounds Read in ext4_ext_remove_space ext4 C error done 8 160d 334d 26/28 116d 6f861765464f fs: Block writes to mounted block devices
KASAN: slab-use-after-free Read in ext4_convert_inline_data_nolock ext4 C error done 7 166d 443d 26/28 130d 6f861765464f fs: Block writes to mounted block devices
UBSAN: shift-out-of-bounds in ext4_handle_clustersize (2) ext4 C error done 3 168d 171d 26/28 131d 6f861765464f fs: Block writes to mounted block devices
KASAN: use-after-free Read in ext4_find_extent (3) prio:low ext4 C error done 31 169d 350d 26/28 133d 6f861765464f fs: Block writes to mounted block devices
kernel BUG in ext4_write_inline_data_end ext4 C error done 32 170d 467d 26/28 133d 6f861765464f fs: Block writes to mounted block devices
INFO: task hung in find_inode_fast (2) ext4 C unreliable done 10 181d 334d 26/28 133d 6f861765464f fs: Block writes to mounted block devices
kernel BUG in ext4_split_extent_at (2) ext4 C error done 3 170d 365d 26/28 133d 6f861765464f fs: Block writes to mounted block devices
WARNING in ext4_dio_write_end_io ext4 C done 2 203d 203d 25/28 143d 619f75dae2cf ext4: fix warning in ext4_dio_write_end_io()
WARNING in ext4_iomap_begin (2) ext4 C done 7 246d 361d 25/28 174d ce56d21355cd ext4: fix racy may inline data check in dio write
general protection fault in ext4_finish_bio ext4 C done 1 348d 344d 23/28 244d 0b7ec177b589 crypto: algif_hash - Fix race between MORE and non-MORE sends
UBSAN: shift-out-of-bounds in ext2_fill_super (2) ext4 C 571 321d 365d 23/28 244d 404615d7f1dc ext2: Drop fragment support
WARNING in ext4_file_write_iter ext4 C error 17314 261d 361d 23/28 244d 194505b55dd7 ext4: drop dio overwrite only flag and associated warning
INFO: rcu detected stall in ext4_file_write_iter (7) mm bpf ext4 3 285d 328d 23/28 244d 8c21ab1bae94 net/sched: fq_pie: avoid stalls in fq_pie_timer()
general protection fault in ext4_acquire_dquot ext4 C 4 357d 397d 23/28 244d 6a4e3363792e quota: Properly disable quotas when add_dquot_ref() fails
BUG: unable to handle kernel paging request in ext4_calculate_overhead ext4 C done 31 290d 292d 23/28 244d ee5c807137ce ext4: ext4_get_{dev}_journal return proper error value
BUG: sleeping function called from invalid context in ext4_update_super ext4 1 372d 368d 23/28 257d f451fd97dd2b ext4: drop the call to ext4_error() from ext4_get_group_info()
possible deadlock in quotactl_fd ext4 C error done 141 347d 428d 23/28 300d 949f95ff39bf ext4: fix lockdep warning when enabling MMP
WARNING in __ext4fs_dirhash ext4 C done 25 398d 398d 22/28 346d 4b3cb1d108bf ext4: improve error handling from ext4_dirhash()
KCSAN: data-race in __es_find_extent_range / __es_find_extent_range (6) ext4 4 424d 415d 22/28 346d 492888df0c7b ext4: fix data races when using cached status extents
WARNING in ext4_iomap_overwrite_begin ext4 1 423d 419d 22/28 346d fa83c34e3e56 ext4: check iomap type only if ext4_iomap_begin() does not fail
KMSAN: uninit-value in htree_dirblock_to_tree ext4 204 395d 526d 22/28 346d 4b3cb1d108bf ext4: improve error handling from ext4_dirhash()
WARNING: locking bug in ext4_xattr_inode_iget ext4 C error 23 369d 400d 22/28 346d 2bc7e7c1a3bc ext4: disallow ea_inodes with extended attributes
possible deadlock in ext4_xattr_get ext4 C inconclusive 3 402d 675d 22/28 346d b3e6bcb94590 ext4: add EA_INODE checking to ext4_iget()
INFO: task hung in __sync_dirty_buffer ext4 C inconclusive error 832 366d 1014d 22/28 346d f4ce24f54d9c ext4: fix deadlock when converting an inline directory in nojournal mode
possible deadlock in ext4_multi_mount_protect ext4 C 584 347d 431d 22/28 346d 949f95ff39bf ext4: fix lockdep warning when enabling MMP
WARNING: locking bug in ext4_xattr_inode_update_ref ext4 C error 4 390d 517d 22/28 346d b928dfdcb27d ext4: set lockdep subclass for the ea_inode in ext4_xattr_inode_cache_find()
possible deadlock in ext4_setattr ext4 C done 7 396d 515d 22/28 346d b3e6bcb94590 ext4: add EA_INODE checking to ext4_iget()
KASAN: slab-out-of-bounds Read in get_max_inline_xattr_value_size ext4 C 21 402d 440d 22/28 346d 2220eaf90992 ext4: add bounds checking in get_max_inline_xattr_value_size()
KASAN: slab-out-of-bounds Read in ext4_group_desc_csum ext4 C error 26 395d 496d 22/28 346d 4f04351888a8 ext4: avoid a potential slab-out-of-bounds in ext4_group_desc_csum
kernel BUG in ext4_get_group_info ext4 C error 237 395d 1028d 22/28 346d 5354b2af3406 ext4: allow ext4_get_group_info() to fail 463808f237cf ext4: remove a BUG_ON in ext4_mb_release_group_pa()
WARNING in ext4_xattr_block_set (2) ext4 C error 32 397d 461d 22/28 346d a44be64bbecb ext4: don't clear SB_RDONLY when remounting r/w until quota is re-enabled
WARNING in kvfree (2) ext4 C 47 402d 454d 22/28 346d b87c7cdf2bed ext4: fix invalid free tracking in ext4_xattr_move_to_block()
memory leak in ext4_expand_extra_isize_ea ext4 C 2 401d 468d 22/28 346d b87c7cdf2bed ext4: fix invalid free tracking in ext4_xattr_move_to_block()
possible deadlock in ext4_xattr_inode_iget ext4 C done 351 356d 514d 22/28 346d aff3bea95388 ext4: add lockdep annotations for i_data_sem for ea_inode's
possible deadlock in ext4_xattr_set_handle (3) ext4 C 451 347d 504d 22/28 346d b3e6bcb94590 ext4: add EA_INODE checking to ext4_iget()
WARNING in mb_find_extent ext4 C error error 135 488d 530d 22/28 346d fa08a7b61dff ext4: fix WARNING in mb_find_extent
possible deadlock in jbd2_log_wait_commit ext4 C done 429 445d 469d 22/28 370d 3c92792da850 ext4: Fix deadlock during directory rename
WARNING in ext4_update_inline_data ext4 C error 21 466d 530d 22/28 370d 2b96b4a5d944 ext4: fix WARNING in ext4_update_inline_data
possible deadlock in ext4_bmap ext4 C error 78083 370d 674d 22/28 370d 62913ae96de7 ext4, jbd2: add an optimized bmap for the journal inode
INFO: rcu detected stall in ext4_file_write_iter (6) ext4 C error 8 427d 490d 22/28 370d d125d1349abe alarmtimer: Prevent starvation by small intervals and SIG_IGN
KASAN: use-after-free Read in ext4_find_extent (2) ext4 C error 2 404d 529d 22/28 370d 835659598c67 ext4: fix use-after-free read in ext4_find_extent for bigalloc + inline
INFO: task hung in find_inode_fast ext4 C error 28 372d 521d 22/28 370d 0f7bfd6f8164 ext4: fix task hung in ext4_xattr_delete_inode
possible deadlock in __jbd2_log_wait_for_space ext4 C error 34993 425d 674d 22/28 370d 62913ae96de7 ext4, jbd2: add an optimized bmap for the journal inode
WARNING: bad unlock balance in ext4_rename2 ext4 105 445d 464d 22/28 370d 70e42feab2e2 ext4: fix possible double unlock when moving a directory
general protection fault in ext4_fill_super (2) ext4 1 412d 411d 22/28 370d d5e72c4e3256 ext4: fix lost error code reporting in __ext4_fill_super()
KCSAN: data-race in strscpy / strscpy (3) ext4 mm 3 433d 418d 22/28 370d cf587db2ee02 kernel: Allow a kernel thread's name to be set in copy_process
WARNING in fscrypt_destroy_keyring fscrypt ext4 C 2 459d 456d 22/28 370d ccb820dc7d22 fscrypt: destroy keyring after security_sb_delete()
WARNING in print_tainted ext4 C 162 370d 541d 22/28 370d c6adf659a8ba can: isotp: check CAN address family in isotp_bind() 4f027cba8216 can: isotp: split tx timer into transmission and timeout
possible deadlock in jbd2_journal_lock_updates ext4 C error 83148 376d 674d 22/28 370d 62913ae96de7 ext4, jbd2: add an optimized bmap for the journal inode
UBSAN: shift-out-of-bounds in ext2_fill_super ext4 C 2265 370d 473d 22/28 370d 62aeb94433fc ext2: Check block size validity during mount
KMSAN: uninit-value in ext4_evict_inode ext4 2734 520d 574d 22/28 474d 7ea71af94eaa ext4: fix uninititialized value in 'ext4_evict_inode'
WARNING in ext4_da_release_space ext4 C error 9 486d 609d 22/28 474d 1b8f787ef547 ext4: fix warning in 'ext4_da_release_space'
memory leak in __insert_pending ext4 C 1 590d 586d 22/28 474d 1da18e38cb97 ext4: fix reserved cluster accounting in __es_remove_extent()
memory leak in crypto_create_tfm_node ext4 crypto C 3 604d 609d 22/28 474d ccd30a476f8e fscrypt: fix keyring memory leak on mount failure
WARNING in ext2_fill_super ext4 C 2 659d 655d 22/28 474d d766f2d1e3e3 ext2: Add sanity checks for group and filesystem size e7c7fbb9a857 ext2: Use kvmalloc() for group descriptor array
KMSAN: uninit-value in pagecache_write ext4 5 599d 583d 22/28 474d 956510c0c743 fs: ext4: initialize fsdata in pagecache_write()
kernel panic: corrupted stack end in dput (2) ext4 1 572d 572d 22/28 474d b81d591386c3 riscv: Increase stack size under KASAN
kernel panic: corrupted stack end in loop_workfn ext4 1 781d 781d 22/28 474d b81d591386c3 riscv: Increase stack size under KASAN
KASAN: use-after-free Read in jbd2_journal_wait_updates ext4 C error 143 811d 855d 22/28 474d cc16eecae687 jbd2: fix use-after-free of transaction_t race
general protection fault in ext4_fill_super ext4 C done 5 661d 877d 22/28 474d 7c268d4ce2d3 ext4: fix potential NULL pointer dereference in ext4_fill_super()
WARNING in ext4_expand_extra_isize_ea ext4 C error done 3 548d 559d 22/28 474d cc12a6f25e07 ext4: allocate extended attribute value in vmalloc area
kernel panic: corrupted stack end in ext4_file_mmap ext4 2 478d 623d 22/28 474d b81d591386c3 riscv: Increase stack size under KASAN
kernel BUG in ext4_mb_use_inode_pa ext4 C error done 2 617d 617d 22/28 474d 4bb26f2885ac ext4: avoid crash when inline data creation follows DIO write
INFO: task hung in __writeback_inodes_sb_nr (5) ext4 C done 48 480d 851d 22/28 474d 7d9b1b578d67 ip6mr: fix use-after-free in ip6mr_sk_done()
kernel panic: corrupted stack end in vfs_fallocate ext4 1 600d 596d 22/28 474d b81d591386c3 riscv: Increase stack size under KASAN
WARNING in ext2_get_group_desc ext4 1 696d 692d 22/28 474d fa78f3369372 ext2: Add more validity checks for inode counts
WARNING in ext4_xattr_block_set ext4 C error 57 479d 585d 22/28 474d fae381a3d79b ext4: init quota for 'old.inode' in 'ext4_rename'
kernel BUG in ext4_ind_remove_space ext4 C error done 10 799d 849d 22/28 474d 2da376228a24 ext4: limit length to bitmap_maxbytes - blocksize in punch_hole
kernel BUG in ext4_es_cache_extent ext4 C inconclusive 6 497d 857d 22/28 474d c878bea3c9d7 ext4: filter out EXT4_FC_REPLAY from on-disk superblock field s_state
kernel BUG at fs/ext4/inline.c:LINE! ext4 C done done 76 513d 1337d 22/28 474d 5c099c4fdc43 ext4: fix kernel BUG in 'ext4_write_inline_data_end()'
possible deadlock in start_this_handle (3) ext4 8 511d 699d 22/28 474d 68aaee147e59 mm: memcontrol: fix potential oom_lock recursion deadlock
general protection fault in __ext4_journal_get_write_access fuse ext4 C done done 7 1310d 1359d 22/28 574d 384d87ef2c95 block: Do not discard buffers under a mounted filesystem
KASAN: use-after-free Read in ext4_xattr_set_entry (4) ext4 C error done 21 842d 1229d 20/28 807d 6e47a3cc68fc ext4: get rid of super block and sbi from handle_mount_ops()
possible deadlock in dquot_commit ext4 C unreliable 41 917d 1218d 20/28 826d 4013d47a5307 ext4: make sure to reset inode lockdep class when quota enabling fails
INFO: task hung in ext4_put_super ext4 C inconclusive done 1 1092d 1122d 20/28 945d 618f003199c6 ext4: fix memory leak in ext4_fill_super
KASAN: slab-out-of-bounds Write in ext4_write_inline_data_end ext4 C done 1 1028d 1028d 20/28 945d a54c4613dac1 ext4: fix race writing to an inline_data file while its xattrs are changing
WARNING in ext4_xattr_set_entry ext4 C unreliable 7 1195d 1278d 20/28 945d 6b22489911b7 ext4: do not try to set xattr into ea_inode if value is empty
KCSAN: data-race in start_this_handle / start_this_handle ext4 54 1188d 1189d 20/28 945d 3b1833e92bab ext4: annotate data race in start_this_handle()
UBSAN: shift-out-of-bounds in ext4_mb_init ext4 C done 5 1216d 1227d 20/28 945d f91436d55a27 fs/ext4: fix integer overflow in s_log_groups_per_flex
possible deadlock in __loop_clr_fd (2) block ext4 C unreliable 6977 945d 1070d 20/28 945d 1c500ad70638 loop: reduce the loop_ctl_mutex scope
memory leak in new_inode ext4 C 5 991d 1300d 20/28 945d a8867f4e3809 ext4: fix memory leak in ext4_mb_init_backend on error path.
memory leak in ext4_multi_mount_protect ext4 C 12 1088d 1266d 20/28 945d 618f003199c6 ext4: fix memory leak in ext4_fill_super
WARNING: ODEBUG bug in ext4_fill_super (3) ext4 C done 392 948d 1186d 20/28 945d 2a4ae3bcdf05 ext4: fix timer use-after-free on failed mount
memory leak in v2_read_file_info ext4 C 71 1208d 1268d 20/28 1159d a4db1072e1a3 quota: Fix memory leak when handling corrupted quota file
INFO: task can't die in io_sq_thread_finish ext4 syz 137 1171d 1202d 20/28 1159d eb85890b29e4 io_uring: ensure SQPOLL startup is triggered before error shutdown
UBSAN: array-index-out-of-bounds in dquot_resume ext4 C done 1 1284d 1282d 19/28 1190d e51d68e76d60 fs: quota: fix array-index-out-of-bounds bug by passing correct argument to vfs_cleanup_quota_inode()
general protection fault in ext4_commit_super ext4 C done 4 1269d 1268d 19/28 1190d c92dc856848f ext4: defer saving error info from atomic context
kernel BUG at fs/ext4/inode.c:LINE! ext4 C done 9 1260d 1385d 19/28 1190d 073861ed77b6 mm: fix VM_BUG_ON(PageTail) and BUG_ON(PageWriteback)
BUG: unable to handle kernel paging request in dqput ext4 C done 7 1285d 1354d 19/28 1190d 11c514a99bb9 quota: Sanity-check quota file headers on load
UBSAN: shift-out-of-bounds in ext4_fill_super ext4 C unreliable 88 1265d 1281d 19/28 1190d c9200760da8a ext4: check for invalid block size early when mounting a file system
BUG: sleeping function called from invalid context in ext4_superblock_csum_set ext4 2 1312d 1318d 15/28 1285d d196e229a80c Revert "ext4: fix superblock checksum calculation race"
INFO: task hung in pipe_release (2) ext4 syz done 3 1378d 1409d 15/28 1356d 7e24969022cb block: allow for_each_bvec to support zero len bvec
BUG: unable to handle kernel NULL pointer dereference in check_preemption_disabled (3) ext4 3 1455d 1456d 15/28 1425d 3021e69219e2 kcov: check kcov_softirq in kcov_remote_stop()
linux-next test error: BUG: using smp_processor_id() in preemptible [ADDR] code: syz-fuzzer/6792 ext4 1 1471d 1471d 15/28 1425d 811985365378 ext4: mballoc: Use this_cpu_read instead of this_cpu_ptr
BUG: unable to handle kernel NULL pointer dereference in create_empty_buffers ext4 1 1467d 1463d 15/28 1425d 3021e69219e2 kcov: check kcov_softirq in kcov_remote_stop()
bpf test error: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks ext4 48 1455d 1457d 15/28 1425d 811985365378 ext4: mballoc: Use this_cpu_read instead of this_cpu_ptr
BUG: unable to handle kernel NULL pointer dereference in __es_insert_extent ext4 1 1458d 1458d 15/28 1425d 3021e69219e2 kcov: check kcov_softirq in kcov_remote_stop()
bpf-next test error: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks ext4 90 1456d 1462d 15/28 1425d 811985365378 ext4: mballoc: Use this_cpu_read instead of this_cpu_ptr
upstream test error: BUG: using smp_processor_id() in preemptible code in ext4_map_blocks ext4 1 1459d 1459d 15/28 1425d 811985365378 ext4: mballoc: Use this_cpu_read instead of this_cpu_ptr
BUG: unable to handle kernel NULL pointer dereference in generic_perform_write (2) ext4 C done 3 1522d 1520d 15/28 1425d 829b37b8cddb ext4: avoid race conditions when remounting with options that change dax
BUG: unable to handle kernel NULL pointer dereference in __ext4_journal_start_sb ext4 1 1455d 1455d 15/28 1425d 3021e69219e2 kcov: check kcov_softirq in kcov_remote_stop()
possible deadlock in ext4_evict_inode ext4 syz error error 38 2067d 2105d 15/28 1481d e5bfad3d7acc smack: use GFP_NOFS while holding inode_smack::smk_lock
WARNING in ext4_write_inode ext4 13 1561d 1568d 15/28 1494d 10a98cb16d80 xfs: clear PF_MEMALLOC before exiting xfsaild thread
general protection fault in path_openat ext4 C done 7 1593d 1593d 15/28 1576d 6404674acd59 vfs: fix do_last() regression
KASAN: use-after-free Read in ext4_xattr_set_entry (2) ext4 C done 19 1640d 2048d 15/28 1580d 9803387c55f7 ext4: validate the debug_want_extra_isize mount option at parse time
general protection fault in ext4_writepages ext4 C done 18 1666d 1675d 15/28 1643d 4d06bfb97ecb ext4: Add error handling for io_end_vec struct allocation
KASAN: slab-out-of-bounds Write in __ext4_expand_extra_isize ext4 16 1766d 2109d 15/28 1643d 4ea99936a163 ext4: add more paranoia checking in ext4_expand_extra_isize handling
KASAN: use-after-free Write in __ext4_expand_extra_isize (2) ext4 14 1679d 1696d 15/28 1643d 4ea99936a163 ext4: add more paranoia checking in ext4_expand_extra_isize handling
BUG: unable to handle kernel paging request in __ext4_expand_extra_isize ext4 6 1716d 1696d 15/28 1643d 4ea99936a163 ext4: add more paranoia checking in ext4_expand_extra_isize handling
KASAN: use-after-free Read in ext4_data_block_valid ext4 108 1785d 2232d 13/28 1701d 7727ae52975d ext4: fix potential use after free after remounting with noblock_validity
KASAN: use-after-free Write in __ext4_expand_extra_isize ext4 C 95 1871d 2262d 12/28 1824d 7bc04c5c2cc4 ext4: fix use-after-free race with debug_want_extra_isize
KASAN: use-after-free Read in seq_escape ext4 1 2081d 2081d 11/28 2038d 33458eaba4df ext4: fix use-after-free race in ext4_remount()'s error path
KASAN: use-after-free Write in jbd2_log_do_checkpoint ext4 1 2100d 2095d 11/28 2038d ccd3c4373eac jbd2: fix use after free in jbd2_log_do_checkpoint()
INFO: task hung in ext4_fallocate ext4 C 1 2082d 2080d 11/28 2038d f18b2b83a727 ext4: fix argument checking in EXT4_IOC_MOVE_EXT
KASAN: stack-out-of-bounds Read in __schedule ext4 syz 4 2112d 2115d 10/28 2101d b845c898b2f1 bpf, sockmap: fix sock_hash_alloc and reject zero-sized keys
WARNING in up_write ext4 C 725 2214d 2262d 8/28 2107d d7d760efad70 locking/rwsem: Add a new RWSEM_ANONYMOUSLY_OWNED flag
KASAN: stack-out-of-bounds Read in ext4_symlink ext4 1 2158d 2158d 8/28 2136d 99ba2b5aba24 bpf: sockhash, disallow bpf_tcp_close and update in parallel
KASAN: stack-out-of-bounds Read in find_inode_nowait ext4 1 2165d 2165d 8/28 2136d 99ba2b5aba24 bpf: sockhash, disallow bpf_tcp_close and update in parallel
INFO: task hung in jbd2_journal_stop ext4 1 2260d 2260d 8/28 2164d ebec3f8f5271 n_tty: Access echo_* variables carefully.
KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry ext4 C 18 2263d 2264d 5/28 2206d e40ff2138985 ext4: force revalidation of directory pointer after seekdir(2)
WARNING in ext4_superblock_csum_set ext4 C 1 2263d 2262d 5/28 2226d a45403b51582 ext4: always initialize the crc32c checksum driver
WARNING: suspicious RCU usage in crng_reseed ext4 39 2228d 2242d 5/28 2226d 6c1e851c4edc random: fix possible sleeping allocation from irq context
kernel BUG at fs/ext4/extents.c:LINE! ext4 C 1 2264d 2263d 5/28 2226d 349fa7d6e193 ext4: prevent right-shifting extents beyond EXT_MAX_BLOCKS