Extracting prog: 2m19.112549408s Minimizing prog: 5m8.062934874s Simplifying prog options: 0s Extracting C: 50.615292833s Simplifying C: 12m1.406292933s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat-openat$cgroup_ro-getegid-syz_mount_image$ext4 detailed listing: executing program 0: openat(0xffffffffffffff9c, 0x0, 0x141842, 0x0) openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) getegid() syz_mount_image$ext4(&(0x7f0000000100)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x2000005, &(0x7f0000003340), 0x1, 0x4fa, &(0x7f0000000cc0)="$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") program crashed: possible deadlock in dquot_commit single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program testing program (duration=53.089267068s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat-openat$cgroup_ro-getegid detailed listing: executing program 0: openat(0xffffffffffffff9c, 0x0, 0x141842, 0x0) openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) getegid() program did not crash testing program (duration=53.089267068s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat-openat$cgroup_ro-syz_mount_image$ext4 detailed listing: executing program 0: openat(0xffffffffffffff9c, 0x0, 0x141842, 0x0) openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_mount_image$ext4(&(0x7f0000000100)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x2000005, &(0x7f0000003340), 0x1, 0x4fa, &(0x7f0000000cc0)="$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") program crashed: possible deadlock in dquot_commit testing program (duration=53.089267068s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat-syz_mount_image$ext4 detailed listing: executing program 0: openat(0xffffffffffffff9c, 0x0, 0x141842, 0x0) syz_mount_image$ext4(&(0x7f0000000100)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x2000005, &(0x7f0000003340), 0x1, 0x4fa, &(0x7f0000000cc0)="$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") program crashed: possible deadlock in dquot_commit testing program (duration=53.089267068s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000100)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x2000005, &(0x7f0000003340), 0x1, 0x4fa, &(0x7f0000000cc0)="$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") program crashed: possible deadlock in dquot_commit extracting C reproducer testing compiled C program (duration=53.089267068s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: possible deadlock in dquot_commit simplifying C reproducer testing compiled C program (duration=53.089267068s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: possible deadlock in dquot_commit testing compiled C program (duration=53.089267068s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program did not crash testing compiled C program (duration=53.089267068s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: possible deadlock in dquot_commit testing compiled C program (duration=53.089267068s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: possible deadlock in dquot_commit testing compiled C program (duration=53.089267068s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: possible deadlock in dquot_commit testing compiled C program (duration=53.089267068s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program did not crash testing compiled C program (duration=53.089267068s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: possible deadlock in dquot_commit testing compiled C program (duration=53.089267068s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: possible deadlock in dquot_commit reproducing took 20m19.197142069s repro crashed as (corrupted=false): EXT4-fs error (device loop0): __ext4_ext_dirty:183: inode #3: comm syz-executor388: mark_inode_dirty error EXT4-fs error (device loop0): ext4_acquire_dquot:6197: comm syz-executor388: Failed to acquire dquot type 0 ====================================================== WARNING: possible circular locking dependency detected 5.15.169-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor388/4146 is trying to acquire lock: ffff0000d052b3e8 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x54/0x240 fs/quota/dquot.c:507 but task is already holding lock: ffff0000e1927020 (&ei->i_data_sem/2){++++}-{3:3}, at: ext4_truncate+0x7c0/0x1058 fs/ext4/inode.c:4244 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&ei->i_data_sem/2){++++}-{3:3}: down_read+0xc0/0x398 kernel/locking/rwsem.c:1498 ext4_map_blocks+0x2bc/0x1a44 fs/ext4/inode.c:597 ext4_getblk+0x160/0x688 fs/ext4/inode.c:869 ext4_bread+0x3c/0x1d4 fs/ext4/inode.c:922 ext4_quota_write+0x238/0x564 fs/ext4/super.c:6567 write_blk fs/quota/quota_tree.c:64 [inline] get_free_dqblk+0x2dc/0x6a0 fs/quota/quota_tree.c:125 do_insert_tree+0x238/0x14cc fs/quota/quota_tree.c:335 do_insert_tree+0x4b8/0x14cc fs/quota/quota_tree.c:366 do_insert_tree+0x4b8/0x14cc fs/quota/quota_tree.c:366 do_insert_tree+0x4b8/0x14cc fs/quota/quota_tree.c:366 dq_insert_tree fs/quota/quota_tree.c:392 [inline] qtree_write_dquot+0x318/0x488 fs/quota/quota_tree.c:411 v2_write_dquot+0xf4/0x188 fs/quota/quota_v2.c:358 dquot_acquire+0x2cc/0x5e4 fs/quota/dquot.c:472 ext4_acquire_dquot+0x270/0x420 fs/ext4/super.c:6193 dqget+0x664/0xd0c fs/quota/dquot.c:986 __dquot_initialize+0x344/0xc04 fs/quota/dquot.c:1515 dquot_initialize+0x24/0x34 fs/quota/dquot.c:1577 ext4_process_orphan+0x5c/0x2b8 fs/ext4/orphan.c:329 ext4_orphan_cleanup+0x8bc/0x1048 fs/ext4/orphan.c:474 ext4_fill_super+0x8044/0x8768 fs/ext4/super.c:4975 mount_bdev+0x274/0x370 fs/super.c:1400 ext4_mount+0x44/0x58 fs/ext4/super.c:6603 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1530 do_new_mount+0x278/0x8fc fs/namespace.c:3012 path_mount+0x594/0x101c fs/namespace.c:3342 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount fs/namespace.c:3540 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #1 (&s->s_dquot.dqio_sem){++++}-{3:3}: down_read+0xc0/0x398 kernel/locking/rwsem.c:1498 v2_read_dquot+0x50/0x11c fs/quota/quota_v2.c:332 dquot_acquire+0x130/0x5e4 fs/quota/dquot.c:463 ext4_acquire_dquot+0x270/0x420 fs/ext4/super.c:6193 dqget+0x664/0xd0c fs/quota/dquot.c:986 __dquot_initialize+0x344/0xc04 fs/quota/dquot.c:1515 dquot_initialize+0x24/0x34 fs/quota/dquot.c:1577 ext4_process_orphan+0x5c/0x2b8 fs/ext4/orphan.c:329 ext4_orphan_cleanup+0x8bc/0x1048 fs/ext4/orphan.c:474 ext4_fill_super+0x8044/0x8768 fs/ext4/super.c:4975 mount_bdev+0x274/0x370 fs/super.c:1400 ext4_mount+0x44/0x58 fs/ext4/super.c:6603 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1530 do_new_mount+0x278/0x8fc fs/namespace.c:3012 path_mount+0x594/0x101c fs/namespace.c:3342 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount fs/namespace.c:3540 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #0 (&dquot->dq_lock){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3788 [inline] __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743 dquot_commit+0x54/0x240 fs/quota/dquot.c:507 ext4_write_dquot+0x1b4/0x314 fs/ext4/super.c:6173 ext4_mark_dquot_dirty+0xe8/0x140 fs/ext4/super.c:6233 mark_dquot_dirty fs/quota/dquot.c:372 [inline] mark_all_dquot_dirty+0x108/0x424 fs/quota/dquot.c:412 __dquot_free_space+0x878/0xce8 fs/quota/dquot.c:1940 dquot_free_space_nodirty include/linux/quotaops.h:376 [inline] dquot_free_space include/linux/quotaops.h:381 [inline] dquot_free_block include/linux/quotaops.h:392 [inline] ext4_mb_clear_bb fs/ext4/mballoc.c:6156 [inline] ext4_free_blocks+0x1bf8/0x2bdc fs/ext4/mballoc.c:6286 ext4_remove_blocks fs/ext4/extents.c:2523 [inline] ext4_ext_rm_leaf fs/ext4/extents.c:2689 [inline] ext4_ext_remove_space+0x1c48/0x4254 fs/ext4/extents.c:2937 ext4_ext_truncate+0x188/0x250 fs/ext4/extents.c:4471 ext4_truncate+0x9c4/0x1058 fs/ext4/inode.c:4249 ext4_evict_inode+0xc30/0x124c fs/ext4/inode.c:289 evict+0x418/0x894 fs/inode.c:622 iput_final fs/inode.c:1744 [inline] iput+0x744/0x824 fs/inode.c:1770 ext4_process_orphan+0x244/0x2b8 fs/ext4/orphan.c:360 ext4_orphan_cleanup+0x8bc/0x1048 fs/ext4/orphan.c:474 ext4_fill_super+0x8044/0x8768 fs/ext4/super.c:4975 mount_bdev+0x274/0x370 fs/super.c:1400 ext4_mount+0x44/0x58 fs/ext4/super.c:6603 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1530 do_new_mount+0x278/0x8fc fs/namespace.c:3012 path_mount+0x594/0x101c fs/namespace.c:3342 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount fs/namespace.c:3540 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 other info that might help us debug this: Chain exists of: &dquot->dq_lock --> &s->s_dquot.dqio_sem --> &ei->i_data_sem/2 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ei->i_data_sem/2); lock(&s->s_dquot.dqio_sem); lock(&ei->i_data_sem/2); lock(&dquot->dq_lock); *** DEADLOCK *** 4 locks held by syz-executor388/4146: #0: ffff0000d02200e0 (&type->s_umount_key#26/1){+.+.}-{3:3}, at: alloc_super+0x1b8/0x844 fs/super.c:229 #1: ffff0000d0220650 (sb_internal){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1813 [inline] #1: ffff0000d0220650 (sb_internal){.+.+}-{0:0}, at: sb_start_intwrite include/linux/fs.h:1930 [inline] #1: ffff0000d0220650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x338/0x124c fs/ext4/inode.c:243 #2: ffff0000e1927020 (&ei->i_data_sem/2){++++}-{3:3}, at: ext4_truncate+0x7c0/0x1058 fs/ext4/inode.c:4244 #3: ffff800014d99b38 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:311 stack backtrace: CPU: 1 PID: 4146 Comm: syz-executor388 Not tainted 5.15.169-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2011 check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2133 check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3788 [inline] __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743 dquot_commit+0x54/0x240 fs/quota/dquot.c:507 ext4_write_dquot+0x1b4/0x314 fs/ext4/super.c:6173 ext4_mark_dquot_dirty+0xe8/0x140 fs/ext4/super.c:6233 mark_dquot_dirty fs/quota/dquot.c:372 [inline] mark_all_dquot_dirty+0x108/0x424 fs/quota/dquot.c:412 __dquot_free_space+0x878/0xce8 fs/quota/dquot.c:1940 dquot_free_space_nodirty include/linux/quotaops.h:376 [inline] dquot_free_space include/linux/quotaops.h:381 [inline] dquot_free_block include/linux/quotaops.h:392 [inline] ext4_mb_clear_bb fs/ext4/mballoc.c:6156 [inline] ext4_free_blocks+0x1bf8/0x2bdc fs/ext4/mballoc.c:6286 ext4_remove_blocks fs/ext4/extents.c:2523 [inline] ext4_ext_rm_leaf fs/ext4/extents.c:2689 [inline] ext4_ext_remove_space+0x1c48/0x4254 fs/ext4/extents.c:2937 ext4_ext_truncate+0x188/0x250 fs/ext4/extents.c:4471 ext4_truncate+0x9c4/0x1058 fs/ext4/inode.c:4249 ext4_evict_inode+0xc30/0x124c fs/ext4/inode.c:289 evict+0x418/0x894 fs/inode.c:622 iput_final fs/inode.c:1744 [inline] iput+0x744/0x824 fs/inode.c:1770 ext4_process_orphan+0x244/0x2b8 fs/ext4/orphan.c:360 ext4_orphan_cleanup+0x8bc/0x1048 fs/ext4/orphan.c:474 ext4_fill_super+0x8044/0x8768 fs/ext4/super.c:4975 mount_bdev+0x274/0x370 fs/super.c:1400 ext4_mount+0x44/0x58 fs/ext4/super.c:6603 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1530 do_new_mount+0x278/0x8fc fs/namespace.c:3012 path_mount+0x594/0x101c fs/namespace.c:3342 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount fs/namespace.c:3540 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 EXT4-fs (loop0): 1 orphan inode deleted EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback. final repro crashed as (corrupted=false): EXT4-fs error (device loop0): __ext4_ext_dirty:183: inode #3: comm syz-executor388: mark_inode_dirty error EXT4-fs error (device loop0): ext4_acquire_dquot:6197: comm syz-executor388: Failed to acquire dquot type 0 ====================================================== WARNING: possible circular locking dependency detected 5.15.169-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor388/4146 is trying to acquire lock: ffff0000d052b3e8 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x54/0x240 fs/quota/dquot.c:507 but task is already holding lock: ffff0000e1927020 (&ei->i_data_sem/2){++++}-{3:3}, at: ext4_truncate+0x7c0/0x1058 fs/ext4/inode.c:4244 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&ei->i_data_sem/2){++++}-{3:3}: down_read+0xc0/0x398 kernel/locking/rwsem.c:1498 ext4_map_blocks+0x2bc/0x1a44 fs/ext4/inode.c:597 ext4_getblk+0x160/0x688 fs/ext4/inode.c:869 ext4_bread+0x3c/0x1d4 fs/ext4/inode.c:922 ext4_quota_write+0x238/0x564 fs/ext4/super.c:6567 write_blk fs/quota/quota_tree.c:64 [inline] get_free_dqblk+0x2dc/0x6a0 fs/quota/quota_tree.c:125 do_insert_tree+0x238/0x14cc fs/quota/quota_tree.c:335 do_insert_tree+0x4b8/0x14cc fs/quota/quota_tree.c:366 do_insert_tree+0x4b8/0x14cc fs/quota/quota_tree.c:366 do_insert_tree+0x4b8/0x14cc fs/quota/quota_tree.c:366 dq_insert_tree fs/quota/quota_tree.c:392 [inline] qtree_write_dquot+0x318/0x488 fs/quota/quota_tree.c:411 v2_write_dquot+0xf4/0x188 fs/quota/quota_v2.c:358 dquot_acquire+0x2cc/0x5e4 fs/quota/dquot.c:472 ext4_acquire_dquot+0x270/0x420 fs/ext4/super.c:6193 dqget+0x664/0xd0c fs/quota/dquot.c:986 __dquot_initialize+0x344/0xc04 fs/quota/dquot.c:1515 dquot_initialize+0x24/0x34 fs/quota/dquot.c:1577 ext4_process_orphan+0x5c/0x2b8 fs/ext4/orphan.c:329 ext4_orphan_cleanup+0x8bc/0x1048 fs/ext4/orphan.c:474 ext4_fill_super+0x8044/0x8768 fs/ext4/super.c:4975 mount_bdev+0x274/0x370 fs/super.c:1400 ext4_mount+0x44/0x58 fs/ext4/super.c:6603 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1530 do_new_mount+0x278/0x8fc fs/namespace.c:3012 path_mount+0x594/0x101c fs/namespace.c:3342 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount fs/namespace.c:3540 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #1 (&s->s_dquot.dqio_sem){++++}-{3:3}: down_read+0xc0/0x398 kernel/locking/rwsem.c:1498 v2_read_dquot+0x50/0x11c fs/quota/quota_v2.c:332 dquot_acquire+0x130/0x5e4 fs/quota/dquot.c:463 ext4_acquire_dquot+0x270/0x420 fs/ext4/super.c:6193 dqget+0x664/0xd0c fs/quota/dquot.c:986 __dquot_initialize+0x344/0xc04 fs/quota/dquot.c:1515 dquot_initialize+0x24/0x34 fs/quota/dquot.c:1577 ext4_process_orphan+0x5c/0x2b8 fs/ext4/orphan.c:329 ext4_orphan_cleanup+0x8bc/0x1048 fs/ext4/orphan.c:474 ext4_fill_super+0x8044/0x8768 fs/ext4/super.c:4975 mount_bdev+0x274/0x370 fs/super.c:1400 ext4_mount+0x44/0x58 fs/ext4/super.c:6603 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1530 do_new_mount+0x278/0x8fc fs/namespace.c:3012 path_mount+0x594/0x101c fs/namespace.c:3342 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount fs/namespace.c:3540 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #0 (&dquot->dq_lock){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3788 [inline] __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743 dquot_commit+0x54/0x240 fs/quota/dquot.c:507 ext4_write_dquot+0x1b4/0x314 fs/ext4/super.c:6173 ext4_mark_dquot_dirty+0xe8/0x140 fs/ext4/super.c:6233 mark_dquot_dirty fs/quota/dquot.c:372 [inline] mark_all_dquot_dirty+0x108/0x424 fs/quota/dquot.c:412 __dquot_free_space+0x878/0xce8 fs/quota/dquot.c:1940 dquot_free_space_nodirty include/linux/quotaops.h:376 [inline] dquot_free_space include/linux/quotaops.h:381 [inline] dquot_free_block include/linux/quotaops.h:392 [inline] ext4_mb_clear_bb fs/ext4/mballoc.c:6156 [inline] ext4_free_blocks+0x1bf8/0x2bdc fs/ext4/mballoc.c:6286 ext4_remove_blocks fs/ext4/extents.c:2523 [inline] ext4_ext_rm_leaf fs/ext4/extents.c:2689 [inline] ext4_ext_remove_space+0x1c48/0x4254 fs/ext4/extents.c:2937 ext4_ext_truncate+0x188/0x250 fs/ext4/extents.c:4471 ext4_truncate+0x9c4/0x1058 fs/ext4/inode.c:4249 ext4_evict_inode+0xc30/0x124c fs/ext4/inode.c:289 evict+0x418/0x894 fs/inode.c:622 iput_final fs/inode.c:1744 [inline] iput+0x744/0x824 fs/inode.c:1770 ext4_process_orphan+0x244/0x2b8 fs/ext4/orphan.c:360 ext4_orphan_cleanup+0x8bc/0x1048 fs/ext4/orphan.c:474 ext4_fill_super+0x8044/0x8768 fs/ext4/super.c:4975 mount_bdev+0x274/0x370 fs/super.c:1400 ext4_mount+0x44/0x58 fs/ext4/super.c:6603 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1530 do_new_mount+0x278/0x8fc fs/namespace.c:3012 path_mount+0x594/0x101c fs/namespace.c:3342 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount fs/namespace.c:3540 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 other info that might help us debug this: Chain exists of: &dquot->dq_lock --> &s->s_dquot.dqio_sem --> &ei->i_data_sem/2 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ei->i_data_sem/2); lock(&s->s_dquot.dqio_sem); lock(&ei->i_data_sem/2); lock(&dquot->dq_lock); *** DEADLOCK *** 4 locks held by syz-executor388/4146: #0: ffff0000d02200e0 (&type->s_umount_key#26/1){+.+.}-{3:3}, at: alloc_super+0x1b8/0x844 fs/super.c:229 #1: ffff0000d0220650 (sb_internal){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1813 [inline] #1: ffff0000d0220650 (sb_internal){.+.+}-{0:0}, at: sb_start_intwrite include/linux/fs.h:1930 [inline] #1: ffff0000d0220650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x338/0x124c fs/ext4/inode.c:243 #2: ffff0000e1927020 (&ei->i_data_sem/2){++++}-{3:3}, at: ext4_truncate+0x7c0/0x1058 fs/ext4/inode.c:4244 #3: ffff800014d99b38 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:311 stack backtrace: CPU: 1 PID: 4146 Comm: syz-executor388 Not tainted 5.15.169-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2011 check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2133 check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3788 [inline] __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743 dquot_commit+0x54/0x240 fs/quota/dquot.c:507 ext4_write_dquot+0x1b4/0x314 fs/ext4/super.c:6173 ext4_mark_dquot_dirty+0xe8/0x140 fs/ext4/super.c:6233 mark_dquot_dirty fs/quota/dquot.c:372 [inline] mark_all_dquot_dirty+0x108/0x424 fs/quota/dquot.c:412 __dquot_free_space+0x878/0xce8 fs/quota/dquot.c:1940 dquot_free_space_nodirty include/linux/quotaops.h:376 [inline] dquot_free_space include/linux/quotaops.h:381 [inline] dquot_free_block include/linux/quotaops.h:392 [inline] ext4_mb_clear_bb fs/ext4/mballoc.c:6156 [inline] ext4_free_blocks+0x1bf8/0x2bdc fs/ext4/mballoc.c:6286 ext4_remove_blocks fs/ext4/extents.c:2523 [inline] ext4_ext_rm_leaf fs/ext4/extents.c:2689 [inline] ext4_ext_remove_space+0x1c48/0x4254 fs/ext4/extents.c:2937 ext4_ext_truncate+0x188/0x250 fs/ext4/extents.c:4471 ext4_truncate+0x9c4/0x1058 fs/ext4/inode.c:4249 ext4_evict_inode+0xc30/0x124c fs/ext4/inode.c:289 evict+0x418/0x894 fs/inode.c:622 iput_final fs/inode.c:1744 [inline] iput+0x744/0x824 fs/inode.c:1770 ext4_process_orphan+0x244/0x2b8 fs/ext4/orphan.c:360 ext4_orphan_cleanup+0x8bc/0x1048 fs/ext4/orphan.c:474 ext4_fill_super+0x8044/0x8768 fs/ext4/super.c:4975 mount_bdev+0x274/0x370 fs/super.c:1400 ext4_mount+0x44/0x58 fs/ext4/super.c:6603 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1530 do_new_mount+0x278/0x8fc fs/namespace.c:3012 path_mount+0x594/0x101c fs/namespace.c:3342 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount fs/namespace.c:3540 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 EXT4-fs (loop0): 1 orphan inode deleted EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.