======================================================
WARNING: possible circular locking dependency detected
6.13.0-rc6-syzkaller-00051-geea6e4b4dfb8 #0 Not tainted
------------------------------------------------------
syz.3.761/10165 is trying to acquire lock:
ffff88807b17d4d8 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
ffff88807b17d4d8 (mapping.invalidate_lock){++++}-{4:4}, at: page_cache_ra_unbounded+0x173/0x750 mm/readahead.c:226
but task is already holding lock:
ffff88807f754620 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock_killable include/linux/mmap_lock.h:153 [inline]
ffff88807f754620 (&mm->mmap_lock){++++}-{4:4}, at: __get_user_pages_locked mm/gup.c:1735 [inline]
ffff88807f754620 (&mm->mmap_lock){++++}-{4:4}, at: get_dump_page+0xb6/0x230 mm/gup.c:2278
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #5 (&mm->mmap_lock){++++}-{4:4}:
__might_fault mm/memory.c:6751 [inline]
__might_fault+0x11b/0x190 mm/memory.c:6744
_inline_copy_from_user include/linux/uaccess.h:162 [inline]
_copy_from_user+0x29/0xd0 lib/usercopy.c:18
copy_from_user include/linux/uaccess.h:212 [inline]
__blk_trace_setup+0xa8/0x180 kernel/trace/blktrace.c:626
blk_trace_setup+0x47/0x70 kernel/trace/blktrace.c:648
sg_ioctl_common drivers/scsi/sg.c:1114 [inline]
sg_ioctl+0x65e/0x2750 drivers/scsi/sg.c:1156
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #4 (&q->debugfs_mutex){+.+.}-{4:4}:
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
blk_mq_init_sched+0x42b/0x640 block/blk-mq-sched.c:473
elevator_init_mq+0x2cd/0x420 block/elevator.c:610
add_disk_fwnode+0x113/0x1300 block/genhd.c:413
sd_probe+0xa86/0x1000 drivers/scsi/sd.c:4024
call_driver_probe drivers/base/dd.c:579 [inline]
really_probe+0x241/0xa90 drivers/base/dd.c:658
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:800
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:958
bus_for_each_drv+0x15a/0x1e0 drivers/base/bus.c:459
__device_attach_async_helper+0x1d3/0x290 drivers/base/dd.c:987
async_run_entry_fn+0x9f/0x530 kernel/async.c:129
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c4/0x3a0 kernel/kthread.c:389
ret_from_fork+0x48/0x80 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}:
blk_queue_enter+0x50f/0x640 block/blk-core.c:328
blk_mq_alloc_request+0x59b/0x950 block/blk-mq.c:652
scsi_alloc_request drivers/scsi/scsi_lib.c:1222 [inline]
scsi_execute_cmd+0x1eb/0xf40 drivers/scsi/scsi_lib.c:304
read_capacity_16+0x213/0xe10 drivers/scsi/sd.c:2655
sd_read_capacity drivers/scsi/sd.c:2824 [inline]
sd_revalidate_disk.isra.0+0x1a06/0xa8d0 drivers/scsi/sd.c:3734
sd_probe+0x904/0x1000 drivers/scsi/sd.c:4010
call_driver_probe drivers/base/dd.c:579 [inline]
really_probe+0x241/0xa90 drivers/base/dd.c:658
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:800
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:958
bus_for_each_drv+0x15a/0x1e0 drivers/base/bus.c:459
__device_attach_async_helper+0x1d3/0x290 drivers/base/dd.c:987
async_run_entry_fn+0x9f/0x530 kernel/async.c:129
process_one_work+0x9c8/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c4/0x3a0 kernel/kthread.c:389
ret_from_fork+0x48/0x80 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}:
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
queue_limits_start_update include/linux/blkdev.h:947 [inline]
loop_reconfigure_limits+0x407/0x8c0 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+0x901/0x18b0 drivers/block/loop.c:1559
blkdev_ioctl+0x279/0x6d0 block/ioctl.c:693
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #1 (&q->q_usage_counter(io)#25){++++}-{0:0}:
bio_queue_enter block/blk.h:75 [inline]
blk_mq_submit_bio+0x1fb6/0x24c0 block/blk-mq.c:3090
__submit_bio+0x384/0x540 block/blk-core.c:629
__submit_bio_noacct_mq block/blk-core.c:710 [inline]
submit_bio_noacct_nocheck+0x698/0xd70 block/blk-core.c:739
submit_bio_noacct+0x93a/0x1e20 block/blk-core.c:868
ext4_mpage_readpages+0x624/0x1810 fs/ext4/readpage.c:389
ext4_readahead+0x102/0x140 fs/ext4/inode.c:3201
read_pages+0x1ab/0xdc0 mm/readahead.c:160
page_cache_ra_unbounded+0x3dc/0x750 mm/readahead.c:295
do_page_cache_ra mm/readahead.c:325 [inline]
page_cache_ra_order+0x8f2/0xc80 mm/readahead.c:524
page_cache_sync_ra+0x4b4/0x9c0 mm/readahead.c:612
page_cache_sync_readahead include/linux/pagemap.h:1397 [inline]
filemap_get_pages+0xd7b/0x1be0 mm/filemap.c:2537
filemap_read+0x3ca/0xd70 mm/filemap.c:2637
generic_file_read_iter+0x344/0x450 mm/filemap.c:2825
ext4_file_read_iter+0x1d6/0x6a0 fs/ext4/file.c:147
__kernel_read+0x3f4/0xb50 fs/read_write.c:523
integrity_kernel_read+0x7f/0xb0 security/integrity/iint.c:28
ima_calc_file_hash_tfm+0x2c9/0x3e0 security/integrity/ima/ima_crypto.c:480
ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
ima_calc_file_hash+0x1ba/0x490 security/integrity/ima/ima_crypto.c:568
ima_collect_measurement+0x89f/0xa40 security/integrity/ima/ima_api.c:293
process_measurement+0x1271/0x2370 security/integrity/ima/ima_main.c:372
ima_file_check+0xc6/0x110 security/integrity/ima/ima_main.c:572
security_file_post_open+0x8e/0x210 security/security.c:3121
do_open fs/namei.c:3830 [inline]
path_openat+0x1419/0x2d60 fs/namei.c:3987
do_filp_open+0x20c/0x470 fs/namei.c:4014
do_sys_openat2+0x17a/0x1e0 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+0x175/0x210 fs/open.c:1428
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #0 (mapping.invalidate_lock){++++}-{4:4}:
check_prev_add kernel/locking/lockdep.c:3161 [inline]
check_prevs_add kernel/locking/lockdep.c:3280 [inline]
validate_chain kernel/locking/lockdep.c:3904 [inline]
__lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5226
lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
down_read+0x9a/0x330 kernel/locking/rwsem.c:1524
filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
page_cache_ra_unbounded+0x173/0x750 mm/readahead.c:226
do_page_cache_ra mm/readahead.c:325 [inline]
page_cache_ra_order+0x8f2/0xc80 mm/readahead.c:524
page_cache_async_ra+0x5cb/0x8a0 mm/readahead.c:678
do_async_mmap_readahead mm/filemap.c:3222 [inline]
filemap_fault+0xd69/0x2820 mm/filemap.c:3321
__do_fault+0x10d/0x490 mm/memory.c:4907
do_read_fault mm/memory.c:5322 [inline]
do_fault mm/memory.c:5456 [inline]
do_pte_missing+0xebd/0x3e00 mm/memory.c:3979
handle_pte_fault mm/memory.c:5801 [inline]
__handle_mm_fault+0x103c/0x2a40 mm/memory.c:5944
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6112
faultin_page mm/gup.c:1196 [inline]
__get_user_pages+0x8d9/0x3b50 mm/gup.c:1494
__get_user_pages_locked mm/gup.c:1760 [inline]
get_dump_page+0xff/0x230 mm/gup.c:2278
dump_user_range+0x135/0x8c0 fs/coredump.c:943
elf_core_dump+0x287c/0x3a50 fs/binfmt_elf.c:2129
do_coredump+0x3ada/0x49e0 fs/coredump.c:758
get_signal+0x230b/0x26c0 kernel/signal.c:3002
arch_do_signal_or_restart+0x90/0x7e0 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+0x13f/0x280 kernel/entry/common.c:231
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
other info that might help us debug this:
Chain exists of:
mapping.invalidate_lock --> &q->debugfs_mutex --> &mm->mmap_lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
rlock(&mm->mmap_lock);
lock(&q->debugfs_mutex);
lock(&mm->mmap_lock);
rlock(mapping.invalidate_lock);
*** DEADLOCK ***
2 locks held by syz.3.761/10165:
#0: ffff888066a2e420 (sb_writers#5){.+.+}-{0:0}, at: get_signal+0x230b/0x26c0 kernel/signal.c:3002
#1: ffff88807f754620 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock_killable include/linux/mmap_lock.h:153 [inline]
#1: ffff88807f754620 (&mm->mmap_lock){++++}-{4:4}, at: __get_user_pages_locked mm/gup.c:1735 [inline]
#1: ffff88807f754620 (&mm->mmap_lock){++++}-{4:4}, at: get_dump_page+0xb6/0x230 mm/gup.c:2278
stack backtrace:
CPU: 0 UID: 0 PID: 10165 Comm: syz.3.761 Not tainted 6.13.0-rc6-syzkaller-00051-geea6e4b4dfb8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_circular_bug+0x419/0x5d0 kernel/locking/lockdep.c:2074
check_noncircular+0x31a/0x400 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 kernel/locking/lockdep.c:3904 [inline]
__lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5226
lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
down_read+0x9a/0x330 kernel/locking/rwsem.c:1524
filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
page_cache_ra_unbounded+0x173/0x750 mm/readahead.c:226
do_page_cache_ra mm/readahead.c:325 [inline]
page_cache_ra_order+0x8f2/0xc80 mm/readahead.c:524
page_cache_async_ra+0x5cb/0x8a0 mm/readahead.c:678
do_async_mmap_readahead mm/filemap.c:3222 [inline]
filemap_fault+0xd69/0x2820 mm/filemap.c:3321
__do_fault+0x10d/0x490 mm/memory.c:4907
do_read_fault mm/memory.c:5322 [inline]
do_fault mm/memory.c:5456 [inline]
do_pte_missing+0xebd/0x3e00 mm/memory.c:3979
handle_pte_fault mm/memory.c:5801 [inline]
__handle_mm_fault+0x103c/0x2a40 mm/memory.c:5944
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6112
faultin_page mm/gup.c:1196 [inline]
__get_user_pages+0x8d9/0x3b50 mm/gup.c:1494
__get_user_pages_locked mm/gup.c:1760 [inline]
get_dump_page+0xff/0x230 mm/gup.c:2278
dump_user_range+0x135/0x8c0 fs/coredump.c:943
elf_core_dump+0x287c/0x3a50 fs/binfmt_elf.c:2129
do_coredump+0x3ada/0x49e0 fs/coredump.c:758
get_signal+0x230b/0x26c0 kernel/signal.c:3002
arch_do_signal_or_restart+0x90/0x7e0 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+0x13f/0x280 kernel/entry/common.c:231
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f6f8e185d31
Code: 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 83 c8 ff c3 66 2e 0f 1f
RSP: 002b:00000000fffffe10 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f6f8e375fa0 RCX: 00007f6f8e185d29
RDX: 0000000000000000 RSI: 00000000fffffe10 RDI: 0000000000000000
RBP: 00007f6f8e201b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6f8e375fa0 R15: 00007ffe9f6b42e8
</TASK>