======================================================
WARNING: possible circular locking dependency detected
6.13.0-syzkaller #0 Not tainted
------------------------------------------------------
syz.3.799/9960 is trying to acquire lock:
ffff8880501347e0 (&ei->i_data_sem){++++}-{4:4}, at: ext4_da_map_blocks fs/ext4/inode.c:1799 [inline]
ffff8880501347e0 (&ei->i_data_sem){++++}-{4:4}, at: ext4_da_get_block_prep+0x428/0x1900 fs/ext4/inode.c:1873
but task is already holding lock:
ffff888050134620 (&ei->xattr_sem){++++}-{4:4}, at: ext4_da_convert_inline_data_to_extent fs/ext4/inline.c:846 [inline]
ffff888050134620 (&ei->xattr_sem){++++}-{4:4}, at: ext4_da_write_inline_data_begin+0x29c/0xd60 fs/ext4/inline.c:921
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #7 (&ei->xattr_sem){++++}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524
ext4_readpage_inline+0x36/0x590 fs/ext4/inline.c:518
ext4_read_folio+0x174/0x340 fs/ext4/inode.c:3185
filemap_read_folio+0x14a/0x3b0 mm/filemap.c:2357
filemap_create_folio mm/filemap.c:2488 [inline]
filemap_get_pages+0x1099/0x2080 mm/filemap.c:2546
filemap_read+0x452/0xf50 mm/filemap.c:2637
__kernel_read+0x515/0x9d0 fs/read_write.c:523
integrity_kernel_read+0xb0/0x100 security/integrity/iint.c:28
ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:480 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
ima_calc_file_hash+0xae6/0x1b30 security/integrity/ima/ima_crypto.c:568
ima_collect_measurement+0x520/0xb10 security/integrity/ima/ima_api.c:293
process_measurement+0x1351/0x1fb0 security/integrity/ima/ima_main.c:372
ima_file_check+0xd9/0x120 security/integrity/ima/ima_main.c:572
security_file_post_open+0xb9/0x280 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x2ccd/0x3590 fs/namei.c:3987
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1428
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #6 (mapping.invalidate_lock){++++}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524
filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
do_async_mmap_readahead mm/filemap.c:3222 [inline]
filemap_fault+0x818/0x1490 mm/filemap.c:3321
__do_fault+0x137/0x390 mm/memory.c:4907
do_read_fault mm/memory.c:5322 [inline]
do_fault mm/memory.c:5456 [inline]
do_pte_missing mm/memory.c:3979 [inline]
handle_pte_fault+0x39eb/0x5ed0 mm/memory.c:5801
__handle_mm_fault mm/memory.c:5944 [inline]
handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112
faultin_page mm/gup.c:1196 [inline]
__get_user_pages+0x1c82/0x49e0 mm/gup.c:1494
__get_user_pages_locked mm/gup.c:1760 [inline]
get_dump_page+0x155/0x2f0 mm/gup.c:2278
dump_user_range+0x14d/0x970 fs/coredump.c:943
elf_core_dump+0x3e9f/0x4790 fs/binfmt_elf.c:2129
do_coredump+0x229d/0x3100 fs/coredump.c:758
get_signal+0x140b/0x1750 kernel/signal.c:3021
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
irqentry_exit_to_user_mode+0x7e/0x250 kernel/entry/common.c:231
exc_page_fault+0x590/0x8b0 arch/x86/mm/fault.c:1542
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
-> #5 (&mm->mmap_lock){++++}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
__might_fault+0xc6/0x120 mm/memory.c:6751
_inline_copy_from_user include/linux/uaccess.h:162 [inline]
_copy_from_user+0x2a/0xc0 lib/usercopy.c:18
copy_from_user include/linux/uaccess.h:212 [inline]
__blk_trace_setup kernel/trace/blktrace.c:626 [inline]
blk_trace_ioctl+0x1ad/0x9a0 kernel/trace/blktrace.c:740
blkdev_ioctl+0x40c/0x6a0 block/ioctl.c:682
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf7/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #4 (&q->debugfs_mutex){+.+.}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735
blk_mq_init_sched+0x3fa/0x830 block/blk-mq-sched.c:473
elevator_init_mq+0x20e/0x320 block/elevator.c:610
add_disk_fwnode+0x10d/0xf80 block/genhd.c:413
sd_probe+0xba6/0x1100 drivers/scsi/sd.c:4024
really_probe+0x2ba/0xad0 drivers/base/dd.c:658
__driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800
driver_probe_device+0x50/0x430 drivers/base/dd.c:830
__device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958
bus_for_each_drv+0x250/0x2e0 drivers/base/bus.c:459
__device_attach_async_helper+0x22d/0x300 drivers/base/dd.c:987
async_run_entry_fn+0xaa/0x420 kernel/async.c:129
process_one_work kernel/workqueue.c:3236 [inline]
process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3317
worker_thread+0x870/0xd30 kernel/workqueue.c:3398
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
-> #3 (&q->q_usage_counter(queue)#50){++++}-{0:0}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
blk_queue_enter+0xe1/0x600 block/blk-core.c:328
blk_mq_alloc_request+0x4fa/0xaa0 block/blk-mq.c:652
scsi_alloc_request drivers/scsi/scsi_lib.c:1225 [inline]
scsi_execute_cmd+0x16c/0x10e0 drivers/scsi/scsi_lib.c:307
read_capacity_16+0x2b4/0x1450 drivers/scsi/sd.c:2655
sd_read_capacity drivers/scsi/sd.c:2824 [inline]
sd_revalidate_disk+0x1013/0xbce0 drivers/scsi/sd.c:3734
sd_probe+0x9fa/0x1100 drivers/scsi/sd.c:4010
really_probe+0x2ba/0xad0 drivers/base/dd.c:658
__driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800
driver_probe_device+0x50/0x430 drivers/base/dd.c:830
__device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958
bus_for_each_drv+0x250/0x2e0 drivers/base/bus.c:459
__device_attach_async_helper+0x22d/0x300 drivers/base/dd.c:987
async_run_entry_fn+0xaa/0x420 kernel/async.c:129
process_one_work kernel/workqueue.c:3236 [inline]
process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3317
worker_thread+0x870/0xd30 kernel/workqueue.c:3398
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
-> #2 (&q->limits_lock){+.+.}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735
queue_limits_start_update include/linux/blkdev.h:947 [inline]
loop_reconfigure_limits+0x43f/0x900 drivers/block/loop.c:998
loop_set_block_size drivers/block/loop.c:1473 [inline]
lo_simple_ioctl drivers/block/loop.c:1496 [inline]
lo_ioctl+0x1351/0x1f50 drivers/block/loop.c:1559
blkdev_ioctl+0x57f/0x6a0 block/ioctl.c:693
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf7/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #1 (&q->q_usage_counter(io)#23){++++}-{0:0}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
bio_queue_enter block/blk.h:75 [inline]
blk_mq_submit_bio+0x1536/0x2390 block/blk-mq.c:3090
__submit_bio+0x2c6/0x560 block/blk-core.c:629
__submit_bio_noacct_mq block/blk-core.c:710 [inline]
submit_bio_noacct_nocheck+0x4d3/0xe30 block/blk-core.c:739
ext4_read_block_bitmap_nowait+0x7c5/0xa80 fs/ext4/balloc.c:551
ext4_mb_prefetch+0x240/0x380 fs/ext4/mballoc.c:2749
ext4_mb_regular_allocator+0xb44/0x3bb0 fs/ext4/mballoc.c:2898
ext4_mb_new_blocks+0x10a8/0x4e00 fs/ext4/mballoc.c:6217
ext4_ext_map_blocks+0x1be0/0x7d30 fs/ext4/extents.c:4379
ext4_map_create_blocks fs/ext4/inode.c:516 [inline]
ext4_map_blocks+0x8bf/0x1990 fs/ext4/inode.c:702
ext4_getblk+0x1fa/0x880 fs/ext4/inode.c:849
ext4_bread+0x2e/0x180 fs/ext4/inode.c:912
ext4_append+0x327/0x5c0 fs/ext4/namei.c:83
ext4_init_new_dir+0x33e/0xa30 fs/ext4/namei.c:2988
ext4_mkdir+0x4f7/0xcf0 fs/ext4/namei.c:3034
vfs_mkdir+0x2fb/0x4f0 fs/namei.c:4311
do_mkdirat+0x264/0x3a0 fs/namei.c:4334
__do_sys_mkdirat fs/namei.c:4349 [inline]
__se_sys_mkdirat fs/namei.c:4347 [inline]
__x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4347
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #0 (&ei->i_data_sem){++++}-{4:4}:
check_prev_add kernel/locking/lockdep.c:3161 [inline]
check_prevs_add kernel/locking/lockdep.c:3280 [inline]
validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904
__lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524
ext4_da_map_blocks fs/ext4/inode.c:1799 [inline]
ext4_da_get_block_prep+0x428/0x1900 fs/ext4/inode.c:1873
ext4_block_write_begin+0x4d8/0x1510 fs/ext4/inode.c:1063
ext4_da_convert_inline_data_to_extent fs/ext4/inline.c:860 [inline]
ext4_da_write_inline_data_begin+0x4da/0xd60 fs/ext4/inline.c:921
ext4_da_write_begin+0x4fe/0xa60 fs/ext4/inode.c:2932
generic_perform_write+0x348/0x990 mm/filemap.c:4046
ext4_buffered_write_iter+0xc5/0x350 fs/ext4/file.c:299
ext4_file_write_iter+0x892/0x1c50
do_iter_readv_writev+0x602/0x880
vfs_writev+0x376/0xba0 fs/read_write.c:1050
do_writev+0x1b6/0x360 fs/read_write.c:1096
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
other info that might help us debug this:
Chain exists of:
&ei->i_data_sem --> mapping.invalidate_lock --> &ei->xattr_sem
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
rlock(&ei->xattr_sem);
lock(mapping.invalidate_lock);
lock(&ei->xattr_sem);
rlock(&ei->i_data_sem);
*** DEADLOCK ***
4 locks held by syz.3.799/9960:
#0: ffff888071c649b8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x254/0x320 fs/file.c:1192
#1: ffff88807f198420 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
#1: ffff88807f198420 (sb_writers#4){.+.+}-{0:0}, at: vfs_writev+0x2d1/0xba0 fs/read_write.c:1048
#2: ffff888050134950 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#2: ffff888050134950 (&sb->s_type->i_mutex_key#8){++++}-{4:4}, at: ext4_buffered_write_iter+0x96/0x350 fs/ext4/file.c:294
#3: ffff888050134620 (&ei->xattr_sem){++++}-{4:4}, at: ext4_da_convert_inline_data_to_extent fs/ext4/inline.c:846 [inline]
#3: ffff888050134620 (&ei->xattr_sem){++++}-{4:4}, at: ext4_da_write_inline_data_begin+0x29c/0xd60 fs/ext4/inline.c:921
stack backtrace:
CPU: 0 UID: 0 PID: 9960 Comm: syz.3.799 Not tainted 6.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2074
check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2206
check_prev_add kernel/locking/lockdep.c:3161 [inline]
check_prevs_add kernel/locking/lockdep.c:3280 [inline]
validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904
__lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524
ext4_da_map_blocks fs/ext4/inode.c:1799 [inline]
ext4_da_get_block_prep+0x428/0x1900 fs/ext4/inode.c:1873
ext4_block_write_begin+0x4d8/0x1510 fs/ext4/inode.c:1063
ext4_da_convert_inline_data_to_extent fs/ext4/inline.c:860 [inline]
ext4_da_write_inline_data_begin+0x4da/0xd60 fs/ext4/inline.c:921
ext4_da_write_begin+0x4fe/0xa60 fs/ext4/inode.c:2932
generic_perform_write+0x348/0x990 mm/filemap.c:4046
ext4_buffered_write_iter+0xc5/0x350 fs/ext4/file.c:299
ext4_file_write_iter+0x892/0x1c50
do_iter_readv_writev+0x602/0x880
vfs_writev+0x376/0xba0 fs/read_write.c:1050
do_writev+0x1b6/0x360 fs/read_write.c:1096
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe6a1385d29
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
RSP: 002b:00007fe6a2274038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007fe6a1575fa0 RCX: 00007fe6a1385d29
RDX: 0000000000000001 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007fe6a1401b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe6a1575fa0 R15: 00007ffcdc2eebd8
</TASK>