Extracting prog: 35.492624178s Minimizing prog: 2m5.020778551s Simplifying prog options: 4m56.227794537s Extracting C: 1m46.152264147s Simplifying C: 0s extracting reproducer from 37 programs first checking the prog from the crash report 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000080)='./file0\x00', 0x2808340, &(0x7f0000000640)={[{@i_version}, {@norecovery}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5a}}, {@dax_inode}, {@resgid}, {@acl}, {@init_itable_val={'init_itable', 0x3d, 0x3}}]}, 0x1, 0x47c, &(0x7f00000001c0)="$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") syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000080)='./file0\x00', 0x2808340, &(0x7f0000000640)={[{@i_version}, {@norecovery}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5a}}, {@dax_inode}, {@resgid}, {@acl}, {@init_itable_val={'init_itable', 0x3d, 0x3}}]}, 0x1, 0x47c, &(0x7f00000001c0)="$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") (async) program crashed: possible deadlock in ext4_writepages single: successfully extracted reproducer found reproducer with 2 syscalls minimizing guilty program testing program (duration=45.210443757s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000080)='./file0\x00', 0x2808340, &(0x7f0000000640)={[{@i_version}, {@norecovery}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5a}}, {@dax_inode}, {@resgid}, {@acl}, {@init_itable_val={'init_itable', 0x3d, 0x3}}]}, 0x1, 0x47c, &(0x7f00000001c0)="$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") program crashed: possible deadlock in ext4_writepages extracting C reproducer testing compiled C program (duration=45.210443757s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program did not crash simplifying guilty program options testing program (duration=45.210443757s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000080)='./file0\x00', 0x2808340, &(0x7f0000000640)={[{@i_version}, {@norecovery}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5a}}, {@dax_inode}, {@resgid}, {@acl}, {@init_itable_val={'init_itable', 0x3d, 0x3}}]}, 0x1, 0x47c, &(0x7f00000001c0)="$eJzs3M1rHGUYAPBnJh9t7UdirR+tVaNFCIpJk1btwYuiIFJR0EM9xmRbQreNNFFsLTYV8SRIQS9exKPoX+BNBFFPgldPnqRQtJe2niIzO9NutknWmo2TZn8/2M377ry78zw7X+++724C6FpD2V0SsS0ifouIgUZ1cYOhxp+rl89OXrt8djKJhYXX/kzydlcun50sm5bP21pUhtOI9MOkWMlis6fPHJ+o12univro3Im3RmdPn3ninRMTx2rHaifHDx06eGDs6afGn+xInlleV/a8P7N394tvXHh58siFN3/6Jot3W7G8OY9OGcoS/2sh17rs0U6vrGLbm8pJb4WBcEt6IiLbXH358T8QPXFj4w3ECx9UGhywprJr06blF88vABtYElVHAFSjvNBnn3/LW9tOw0DHuh+Vu/Rs4wNQlvfV4tZY0htp0aav5fNtJw1FxJH5v7/IbrFG4xAAAM0+nvzscH9EvHft65eyvkfWtSvHg+7J73/P73cU3b7BiLgzInZGxF0RsSsi7i7a3hsR960ynpv7P+nFVb7kirL+3zPF3Nbi/l/Z+4vBnqK2Pc+/Lzk6Xa/tL96T4ejblNXHVljHd8//+slyy5r7f9ktW3/ZFyziuNjbMkA3NTE3kXdKO+DS+Yg9vUvln1yfCUgiYndE7Lm1l95RFqYf+2rvco3a57+CDswzLXyZpTef5T8fLfmXkub5yemb5idHN0e9tn+03Ctu9vMvH7263PpXlX8HXKo1/jZt/9Ymg0nzfO1sZ9f/H/f/tD95PZ9n7i8ee3dibu7UWER/cjivL3p8/MZzy3rZPtv/h/ctffzvLJ6T5X9/RGQ78QMR8WBEPFTE/nBEPBIR+1bI8cfn2ucfaUXb/3zE1JLnv+v7f8v2v/VCz/Efvl1u/f9u+x/MS8PFI/n5r42lwslOF60Brua9AwAAgNtFmn8HPklHrpfTdGSk8R3+XXFHWp+ZnXv86MzbJ6ca35UfjL60HOkaKMZD69P12lgyX7xiY3x0vBgrLsdLDxTjxp/2bMnrI5Mz9amKc4dut3WZ4z/zR0/V0QFrbMuSj473/++BABVonUdPF1fPvRJOBrBR+b02dK82x3/z72CADcb1H7rXUsf/uZa6uQDYmFz/oXs5/qFLpd9XHQFQIdd/6Eqr+V3/GhY2r48wqims142SFyLKQrou4rltC2m7Np8X/wSjogirPjMBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB0xj8BAAD//7B84+M=") program crashed: possible deadlock in ext4_writepages extracting C reproducer testing compiled C program (duration=45.210443757s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program did not crash testing program (duration=45.210443757s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000080)='./file0\x00', 0x2808340, &(0x7f0000000640)={[{@i_version}, {@norecovery}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5a}}, {@dax_inode}, {@resgid}, {@acl}, {@init_itable_val={'init_itable', 0x3d, 0x3}}]}, 0x1, 0x47c, &(0x7f00000001c0)="$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") program crashed: possible deadlock in ext4_writepages extracting C reproducer testing compiled C program (duration=45.210443757s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program did not crash testing program (duration=45.210443757s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000080)='./file0\x00', 0x2808340, &(0x7f0000000640)={[{@i_version}, {@norecovery}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5a}}, {@dax_inode}, {@resgid}, {@acl}, {@init_itable_val={'init_itable', 0x3d, 0x3}}]}, 0x1, 0x47c, &(0x7f00000001c0)="$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") program crashed: possible deadlock in ext4_writepages validation run: crashed=true testing program (duration=45.210443757s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000080)='./file0\x00', 0x2808340, &(0x7f0000000640)={[{@i_version}, {@norecovery}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5a}}, {@dax_inode}, {@resgid}, {@acl}, {@init_itable_val={'init_itable', 0x3d, 0x3}}]}, 0x1, 0x47c, &(0x7f00000001c0)="$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") program crashed: possible deadlock in ext4_writepages validation run: crashed=true testing program (duration=45.210443757s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000080)='./file0\x00', 0x2808340, &(0x7f0000000640)={[{@i_version}, {@norecovery}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5a}}, {@dax_inode}, {@resgid}, {@acl}, {@init_itable_val={'init_itable', 0x3d, 0x3}}]}, 0x1, 0x47c, &(0x7f00000001c0)="$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") program crashed: possible deadlock in ext4_writepages validation run: crashed=true reproducing took 12m30.884255248s repro crashed as (corrupted=false): WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.17/4333 is trying to acquire lock: ffff88807e9ecbd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: ext4_writepages+0x1c0/0x2d20 fs/ext4/inode.c:2689 but task is already holding lock: ffff888061901eb0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_trylock_xattr fs/ext4/xattr.h:162 [inline] ffff888061901eb0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_to_expand_extra_isize fs/ext4/inode.c:5941 [inline] ffff888061901eb0 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x3e8/0x700 fs/ext4/inode.c:6022 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&ei->xattr_sem){++++}-{3:3}: down_read+0x44/0x2e0 kernel/locking/rwsem.c:1498 ext4_setattr+0x71d/0x19e0 fs/ext4/inode.c:5465 notify_change+0xbcd/0xee0 fs/attr.c:505 chown_common+0x483/0x610 fs/open.c:680 do_fchownat+0x164/0x270 fs/open.c:711 __do_sys_chown fs/open.c:731 [inline] __se_sys_chown fs/open.c:729 [inline] __x64_sys_chown+0x7e/0x90 fs/open.c:729 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 -> #1 (jbd2_handle){++++}-{0:0}: start_this_handle+0x1338/0x15a0 fs/jbd2/transaction.c:464 jbd2__journal_start+0x2b7/0x5a0 fs/jbd2/transaction.c:521 __ext4_journal_start_sb+0x167/0x360 fs/ext4/ext4_jbd2.c:105 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline] ext4_writepages+0xdc2/0x2d20 fs/ext4/inode.c:2812 do_writepages+0x48d/0x6d0 mm/page-writeback.c:2386 filemap_fdatawrite_wbc+0x1eb/0x240 mm/filemap.c:400 __filemap_fdatawrite_range mm/filemap.c:433 [inline] file_write_and_wait_range+0x129/0x1e0 mm/filemap.c:810 ext4_sync_file+0x1ff/0xae0 fs/ext4/fsync.c:151 vfs_fsync_range fs/sync.c:188 [inline] vfs_fsync fs/sync.c:202 [inline] do_fsync fs/sync.c:212 [inline] __do_sys_fsync fs/sync.c:220 [inline] __se_sys_fsync fs/sync.c:218 [inline] __x64_sys_fsync+0x1a5/0x1e0 fs/sync.c:218 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 -> #0 (&sbi->s_writepages_rwsem){.+.+}-{0:0}: 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+0x2c33/0x7c60 kernel/locking/lockdep.c:5012 lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623 percpu_down_read+0x46/0x1b0 include/linux/percpu-rwsem.h:51 ext4_writepages+0x1c0/0x2d20 fs/ext4/inode.c:2689 do_writepages+0x48d/0x6d0 mm/page-writeback.c:2386 __writeback_single_inode+0x153/0xda0 fs/fs-writeback.c:1657 writeback_single_inode+0x221/0x8b0 fs/fs-writeback.c:1770 write_inode_now+0x217/0x280 fs/fs-writeback.c:2811 iput_final fs/inode.c:1756 [inline] iput+0x5ab/0x8a0 fs/inode.c:1795 ext4_xattr_set_entry+0x10ff/0x3d30 fs/ext4/xattr.c:1837 ext4_xattr_block_set+0x4f7/0x2d30 fs/ext4/xattr.c:1936 ext4_xattr_move_to_block fs/ext4/xattr.c:2633 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2708 [inline] ext4_expand_extra_isize_ea+0xf4b/0x19a0 fs/ext4/xattr.c:2800 __ext4_expand_extra_isize+0x301/0x3e0 fs/ext4/inode.c:5901 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5944 [inline] __ext4_mark_inode_dirty+0x469/0x700 fs/ext4/inode.c:6022 ext4_evict_inode+0xa81/0x1080 fs/ext4/inode.c:282 evict+0x485/0x870 fs/inode.c:647 ext4_orphan_cleanup+0xaa9/0x12e0 fs/ext4/orphan.c:470 ext4_fill_super+0x92f0/0x9a60 fs/ext4/super.c:4975 mount_bdev+0x287/0x3c0 fs/super.c:1400 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x24a/0xa40 fs/namespace.c:3034 do_mount fs/namespace.c:3377 [inline] __do_sys_mount fs/namespace.c:3585 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3562 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 other info that might help us debug this: Chain exists of: &sbi->s_writepages_rwsem --> jbd2_handle --> &ei->xattr_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ei->xattr_sem); lock(jbd2_handle); lock(&ei->xattr_sem); lock(&sbi->s_writepages_rwsem); *** DEADLOCK *** 3 locks held by syz.0.17/4333: #0: ffff88807e9ee0e0 (&type->s_umount_key#28/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950 fs/super.c:229 #1: ffff88807e9ee650 (sb_internal){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1811 [inline] #1: ffff88807e9ee650 (sb_internal){.+.+}-{0:0}, at: sb_start_intwrite include/linux/fs.h:1928 [inline] #1: ffff88807e9ee650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x444/0x1080 fs/ext4/inode.c:243 #2: ffff888061901eb0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_trylock_xattr fs/ext4/xattr.h:162 [inline] #2: ffff888061901eb0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_to_expand_extra_isize fs/ext4/inode.c:5941 [inline] #2: ffff888061901eb0 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x3e8/0x700 fs/ext4/inode.c:6022 stack backtrace: CPU: 1 PID: 4333 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106 check_noncircular+0x274/0x310 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+0x2c33/0x7c60 kernel/locking/lockdep.c:5012 lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623 percpu_down_read+0x46/0x1b0 include/linux/percpu-rwsem.h:51 ext4_writepages+0x1c0/0x2d20 fs/ext4/inode.c:2689 do_writepages+0x48d/0x6d0 mm/page-writeback.c:2386 __writeback_single_inode+0x153/0xda0 fs/fs-writeback.c:1657 writeback_single_inode+0x221/0x8b0 fs/fs-writeback.c:1770 write_inode_now+0x217/0x280 fs/fs-writeback.c:2811 iput_final fs/inode.c:1756 [inline] iput+0x5ab/0x8a0 fs/inode.c:1795 ext4_xattr_set_entry+0x10ff/0x3d30 fs/ext4/xattr.c:1837 ext4_xattr_block_set+0x4f7/0x2d30 fs/ext4/xattr.c:1936 ext4_xattr_move_to_block fs/ext4/xattr.c:2633 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2708 [inline] ext4_expand_extra_isize_ea+0xf4b/0x19a0 fs/ext4/xattr.c:2800 __ext4_expand_extra_isize+0x301/0x3e0 fs/ext4/inode.c:5901 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5944 [inline] __ext4_mark_inode_dirty+0x469/0x700 fs/ext4/inode.c:6022 ext4_evict_inode+0xa81/0x1080 fs/ext4/inode.c:282 evict+0x485/0x870 fs/inode.c:647 ext4_orphan_cleanup+0xaa9/0x12e0 fs/ext4/orphan.c:470 ext4_fill_super+0x92f0/0x9a60 fs/ext4/super.c:4975 mount_bdev+0x287/0x3c0 fs/super.c:1400 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x24a/0xa40 fs/namespace.c:3034 do_mount fs/namespace.c:3377 [inline] __do_sys_mount fs/namespace.c:3585 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3562 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f099e72aeea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007ffd93d2af78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffd93d2b000 RCX: 00007f099e72aeea RDX: 0000200000000180 RSI: 0000200000000080 RDI: 00007ffd93d2afc0 RBP: 0000200000000180 R08: 00007ffd93d2b000 R09: 0000000002808340 R10: 0000000002808340 R11: 0000000000000246 R12: 0000200000000080 R13: 00007ffd93d2afc0 R14: 000000000000047c R15: 0000200000000640 EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #11: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 11 err=-117 EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2826: Unable to expand inode 15. Delete some EAs or run e2fsck. EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #11: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 11 err=-117 EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 18 err=-117 EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 18 err=-117 EXT4-fs (loop0): 1 orphan inode deleted EXT4-fs (loop0): mounted filesystem without journal. Opts: i_version,norecovery,debug_want_extra_isize=0x000000000000005a,dax=inode,resgid=0x0000000000000000,acl,init_itable=0x0000000000000003,,errors=continue. Quota mode: none. final repro crashed as (corrupted=false): WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.17/4333 is trying to acquire lock: ffff88807e9ecbd8 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: ext4_writepages+0x1c0/0x2d20 fs/ext4/inode.c:2689 but task is already holding lock: ffff888061901eb0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_trylock_xattr fs/ext4/xattr.h:162 [inline] ffff888061901eb0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_to_expand_extra_isize fs/ext4/inode.c:5941 [inline] ffff888061901eb0 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x3e8/0x700 fs/ext4/inode.c:6022 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&ei->xattr_sem){++++}-{3:3}: down_read+0x44/0x2e0 kernel/locking/rwsem.c:1498 ext4_setattr+0x71d/0x19e0 fs/ext4/inode.c:5465 notify_change+0xbcd/0xee0 fs/attr.c:505 chown_common+0x483/0x610 fs/open.c:680 do_fchownat+0x164/0x270 fs/open.c:711 __do_sys_chown fs/open.c:731 [inline] __se_sys_chown fs/open.c:729 [inline] __x64_sys_chown+0x7e/0x90 fs/open.c:729 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 -> #1 (jbd2_handle){++++}-{0:0}: start_this_handle+0x1338/0x15a0 fs/jbd2/transaction.c:464 jbd2__journal_start+0x2b7/0x5a0 fs/jbd2/transaction.c:521 __ext4_journal_start_sb+0x167/0x360 fs/ext4/ext4_jbd2.c:105 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline] ext4_writepages+0xdc2/0x2d20 fs/ext4/inode.c:2812 do_writepages+0x48d/0x6d0 mm/page-writeback.c:2386 filemap_fdatawrite_wbc+0x1eb/0x240 mm/filemap.c:400 __filemap_fdatawrite_range mm/filemap.c:433 [inline] file_write_and_wait_range+0x129/0x1e0 mm/filemap.c:810 ext4_sync_file+0x1ff/0xae0 fs/ext4/fsync.c:151 vfs_fsync_range fs/sync.c:188 [inline] vfs_fsync fs/sync.c:202 [inline] do_fsync fs/sync.c:212 [inline] __do_sys_fsync fs/sync.c:220 [inline] __se_sys_fsync fs/sync.c:218 [inline] __x64_sys_fsync+0x1a5/0x1e0 fs/sync.c:218 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 -> #0 (&sbi->s_writepages_rwsem){.+.+}-{0:0}: 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+0x2c33/0x7c60 kernel/locking/lockdep.c:5012 lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623 percpu_down_read+0x46/0x1b0 include/linux/percpu-rwsem.h:51 ext4_writepages+0x1c0/0x2d20 fs/ext4/inode.c:2689 do_writepages+0x48d/0x6d0 mm/page-writeback.c:2386 __writeback_single_inode+0x153/0xda0 fs/fs-writeback.c:1657 writeback_single_inode+0x221/0x8b0 fs/fs-writeback.c:1770 write_inode_now+0x217/0x280 fs/fs-writeback.c:2811 iput_final fs/inode.c:1756 [inline] iput+0x5ab/0x8a0 fs/inode.c:1795 ext4_xattr_set_entry+0x10ff/0x3d30 fs/ext4/xattr.c:1837 ext4_xattr_block_set+0x4f7/0x2d30 fs/ext4/xattr.c:1936 ext4_xattr_move_to_block fs/ext4/xattr.c:2633 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2708 [inline] ext4_expand_extra_isize_ea+0xf4b/0x19a0 fs/ext4/xattr.c:2800 __ext4_expand_extra_isize+0x301/0x3e0 fs/ext4/inode.c:5901 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5944 [inline] __ext4_mark_inode_dirty+0x469/0x700 fs/ext4/inode.c:6022 ext4_evict_inode+0xa81/0x1080 fs/ext4/inode.c:282 evict+0x485/0x870 fs/inode.c:647 ext4_orphan_cleanup+0xaa9/0x12e0 fs/ext4/orphan.c:470 ext4_fill_super+0x92f0/0x9a60 fs/ext4/super.c:4975 mount_bdev+0x287/0x3c0 fs/super.c:1400 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x24a/0xa40 fs/namespace.c:3034 do_mount fs/namespace.c:3377 [inline] __do_sys_mount fs/namespace.c:3585 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3562 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 other info that might help us debug this: Chain exists of: &sbi->s_writepages_rwsem --> jbd2_handle --> &ei->xattr_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ei->xattr_sem); lock(jbd2_handle); lock(&ei->xattr_sem); lock(&sbi->s_writepages_rwsem); *** DEADLOCK *** 3 locks held by syz.0.17/4333: #0: ffff88807e9ee0e0 (&type->s_umount_key#28/1){+.+.}-{3:3}, at: alloc_super+0x201/0x950 fs/super.c:229 #1: ffff88807e9ee650 (sb_internal){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1811 [inline] #1: ffff88807e9ee650 (sb_internal){.+.+}-{0:0}, at: sb_start_intwrite include/linux/fs.h:1928 [inline] #1: ffff88807e9ee650 (sb_internal){.+.+}-{0:0}, at: ext4_evict_inode+0x444/0x1080 fs/ext4/inode.c:243 #2: ffff888061901eb0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_trylock_xattr fs/ext4/xattr.h:162 [inline] #2: ffff888061901eb0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_to_expand_extra_isize fs/ext4/inode.c:5941 [inline] #2: ffff888061901eb0 (&ei->xattr_sem){++++}-{3:3}, at: __ext4_mark_inode_dirty+0x3e8/0x700 fs/ext4/inode.c:6022 stack backtrace: CPU: 1 PID: 4333 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106 check_noncircular+0x274/0x310 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+0x2c33/0x7c60 kernel/locking/lockdep.c:5012 lock_acquire+0x197/0x3f0 kernel/locking/lockdep.c:5623 percpu_down_read+0x46/0x1b0 include/linux/percpu-rwsem.h:51 ext4_writepages+0x1c0/0x2d20 fs/ext4/inode.c:2689 do_writepages+0x48d/0x6d0 mm/page-writeback.c:2386 __writeback_single_inode+0x153/0xda0 fs/fs-writeback.c:1657 writeback_single_inode+0x221/0x8b0 fs/fs-writeback.c:1770 write_inode_now+0x217/0x280 fs/fs-writeback.c:2811 iput_final fs/inode.c:1756 [inline] iput+0x5ab/0x8a0 fs/inode.c:1795 ext4_xattr_set_entry+0x10ff/0x3d30 fs/ext4/xattr.c:1837 ext4_xattr_block_set+0x4f7/0x2d30 fs/ext4/xattr.c:1936 ext4_xattr_move_to_block fs/ext4/xattr.c:2633 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2708 [inline] ext4_expand_extra_isize_ea+0xf4b/0x19a0 fs/ext4/xattr.c:2800 __ext4_expand_extra_isize+0x301/0x3e0 fs/ext4/inode.c:5901 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5944 [inline] __ext4_mark_inode_dirty+0x469/0x700 fs/ext4/inode.c:6022 ext4_evict_inode+0xa81/0x1080 fs/ext4/inode.c:282 evict+0x485/0x870 fs/inode.c:647 ext4_orphan_cleanup+0xaa9/0x12e0 fs/ext4/orphan.c:470 ext4_fill_super+0x92f0/0x9a60 fs/ext4/super.c:4975 mount_bdev+0x287/0x3c0 fs/super.c:1400 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x24a/0xa40 fs/namespace.c:3034 do_mount fs/namespace.c:3377 [inline] __do_sys_mount fs/namespace.c:3585 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3562 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f099e72aeea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007ffd93d2af78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffd93d2b000 RCX: 00007f099e72aeea RDX: 0000200000000180 RSI: 0000200000000080 RDI: 00007ffd93d2afc0 RBP: 0000200000000180 R08: 00007ffd93d2b000 R09: 0000000002808340 R10: 0000000002808340 R11: 0000000000000246 R12: 0000200000000080 R13: 00007ffd93d2afc0 R14: 000000000000047c R15: 0000200000000640 EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #11: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 11 err=-117 EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2826: Unable to expand inode 15. Delete some EAs or run e2fsck. EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #11: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 11 err=-117 EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 18 err=-117 EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: inode #18: comm syz.0.17: iget: bad extra_isize 90 (inode size 256) EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz.0.17: error while reading EA inode 18 err=-117 EXT4-fs (loop0): 1 orphan inode deleted EXT4-fs (loop0): mounted filesystem without journal. Opts: i_version,norecovery,debug_want_extra_isize=0x000000000000005a,dax=inode,resgid=0x0000000000000000,acl,init_itable=0x0000000000000003,,errors=continue. Quota mode: none.