netlink: 'syz.0.0': attribute type 5 has an invalid length. netlink: 'syz.0.0': attribute type 11 has an invalid length. netlink: 156 bytes leftover after parsing attributes in process `syz.0.0'. loop0: detected capacity change from 0 to 32768 ======================================================= 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. ======================================================= ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.11.0-rc7-syzkaller-00039-g77f587896757 #0 Not tainted ------------------------------------------------------ syz.0.0/5117 is trying to acquire lock: ffff88803cd84610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_write_begin_inline fs/ocfs2/aops.c:1480 [inline] ffff88803cd84610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_try_to_write_inline_data fs/ocfs2/aops.c:1583 [inline] ffff88803cd84610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_write_begin_nolock+0x226b/0x4d30 fs/ocfs2/aops.c:1669 but task is already holding lock: ffff888011f0cda0 (&oi->ip_alloc_sem){++++}-{3:3}, at: ocfs2_write_begin+0x1d1/0x3a0 fs/ocfs2/aops.c:1901 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&oi->ip_alloc_sem){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 down_write+0x99/0x220 kernel/locking/rwsem.c:1579 ocfs2_try_remove_refcount_tree+0xb6/0x330 fs/ocfs2/refcounttree.c:931 ocfs2_xattr_set+0xa4f/0x1930 fs/ocfs2/xattr.c:3670 ocfs2_set_acl+0x4cb/0x580 fs/ocfs2/acl.c:254 ocfs2_iop_set_acl+0x24a/0x3c0 fs/ocfs2/acl.c:286 set_posix_acl fs/posix_acl.c:955 [inline] vfs_set_acl+0x7fd/0xa60 fs/posix_acl.c:1134 do_setxattr fs/xattr.c:626 [inline] path_setxattr+0x3bd/0x4d0 fs/xattr.c:658 __do_sys_lsetxattr fs/xattr.c:683 [inline] __se_sys_lsetxattr fs/xattr.c:679 [inline] __x64_sys_lsetxattr+0xb8/0xd0 fs/xattr.c:679 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 -> #3 (&oi->ip_xattr_sem){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 ocfs2_init_acl+0x397/0x930 fs/ocfs2/acl.c:366 ocfs2_mknod+0x1c05/0x2b40 fs/ocfs2/namei.c:408 ocfs2_mkdir+0x1ab/0x480 fs/ocfs2/namei.c:655 vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4210 do_mkdirat+0x264/0x3a0 fs/namei.c:4233 __do_sys_mkdirat fs/namei.c:4248 [inline] __se_sys_mkdirat fs/namei.c:4246 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4246 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 -> #2 (jbd2_handle){++++}-{0:0}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 start_this_handle+0x1eb4/0x2110 fs/jbd2/transaction.c:448 jbd2__journal_start+0x2da/0x5d0 fs/jbd2/transaction.c:505 jbd2_journal_start+0x29/0x40 fs/jbd2/transaction.c:544 ocfs2_start_trans+0x3c9/0x700 fs/ocfs2/journal.c:352 ocfs2_mknod+0x150c/0x2b40 fs/ocfs2/namei.c:359 ocfs2_mkdir+0x1ab/0x480 fs/ocfs2/namei.c:655 vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4210 do_mkdirat+0x264/0x3a0 fs/namei.c:4233 __do_sys_mkdirat fs/namei.c:4248 [inline] __se_sys_mkdirat fs/namei.c:4246 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4246 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 (&journal->j_trans_barrier){.+.+}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 ocfs2_start_trans+0x3be/0x700 fs/ocfs2/journal.c:350 ocfs2_mknod+0x150c/0x2b40 fs/ocfs2/namei.c:359 ocfs2_mkdir+0x1ab/0x480 fs/ocfs2/namei.c:655 vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4210 do_mkdirat+0x264/0x3a0 fs/namei.c:4233 __do_sys_mkdirat fs/namei.c:4248 [inline] __se_sys_mkdirat fs/namei.c:4246 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4246 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 (sb_internal#2){.+.+}-{0:0}: check_prev_add kernel/locking/lockdep.c:3133 [inline] check_prevs_add kernel/locking/lockdep.c:3252 [inline] validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3868 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5142 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1676 [inline] sb_start_intwrite include/linux/fs.h:1859 [inline] ocfs2_start_trans+0x2b9/0x700 fs/ocfs2/journal.c:348 ocfs2_write_begin_inline fs/ocfs2/aops.c:1480 [inline] ocfs2_try_to_write_inline_data fs/ocfs2/aops.c:1583 [inline] ocfs2_write_begin_nolock+0x226b/0x4d30 fs/ocfs2/aops.c:1669 ocfs2_write_begin+0x205/0x3a0 fs/ocfs2/aops.c:1903 generic_perform_write+0x399/0x840 mm/filemap.c:4019 ocfs2_file_write_iter+0x17b4/0x1f60 fs/ocfs2/file.c:2455 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa72/0xc90 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 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: sb_internal#2 --> &oi->ip_xattr_sem --> &oi->ip_alloc_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&oi->ip_alloc_sem); lock(&oi->ip_xattr_sem); lock(&oi->ip_alloc_sem); rlock(sb_internal#2); *** DEADLOCK *** 4 locks held by syz.0.0/5117: #0: ffff888011b1a0c8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x310 fs/file.c:1187 #1: ffff88803cd84420 (sb_writers#10){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2882 [inline] #1: ffff88803cd84420 (sb_writers#10){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 fs/read_write.c:586 #2: ffff888011f0d100 (&sb->s_type->i_mutex_key#19){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #2: ffff888011f0d100 (&sb->s_type->i_mutex_key#19){+.+.}-{3:3}, at: ocfs2_file_write_iter+0x46a/0x1f60 fs/ocfs2/file.c:2387 #3: ffff888011f0cda0 (&oi->ip_alloc_sem){++++}-{3:3}, at: ocfs2_write_begin+0x1d1/0x3a0 fs/ocfs2/aops.c:1901 stack backtrace: CPU: 0 UID: 0 PID: 5117 Comm: syz.0.0 Not tainted 6.11.0-rc7-syzkaller-00039-g77f587896757 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2186 check_prev_add kernel/locking/lockdep.c:3133 [inline] check_prevs_add kernel/locking/lockdep.c:3252 [inline] validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3868 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5142 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1676 [inline] sb_start_intwrite include/linux/fs.h:1859 [inline] ocfs2_start_trans+0x2b9/0x700 fs/ocfs2/journal.c:348 ocfs2_write_begin_inline fs/ocfs2/aops.c:1480 [inline] ocfs2_try_to_write_inline_data fs/ocfs2/aops.c:1583 [inline] ocfs2_write_begin_nolock+0x226b/0x4d30 fs/ocfs2/aops.c:1669 ocfs2_write_begin+0x205/0x3a0 fs/ocfs2/aops.c:1903 generic_perform_write+0x399/0x840 mm/filemap.c:4019 ocfs2_file_write_iter+0x17b4/0x1f60 fs/ocfs2/file.c:2455 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa72/0xc90 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 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: 0033:0x7f273037def9 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:00007f2731197038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f2730535f80 RCX: 00007f273037def9 RDX: 0000000000000020 RSI: 0000000020000840 RDI: 0000000000000008 RBP: 00007f27303f0b76 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f2730535f80 R15: 00007ffccd625368