===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260114 #1 Not tainted ------------------------------------- syz-executor.7/5171 is trying to release lock (rcu_read_lock) at: [] __wait_on_freeing_inode+0x105/0x350 but there are no more locks to release! other info that might help us debug this: 4 locks held by syz-executor.7/5171: #0: ffff88800f6283f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff888049942a00 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f62c950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xe32/0x12d0 #3: ffffffff85c16898 (inode_hash_lock){+.+.}-{3:3}, at: insert_inode_locked+0xf9/0x890 stack backtrace: CPU: 0 UID: 0 PID: 5171 Comm: syz-executor.7 Not tainted 6.19.0-rc5-next-20260114 #1 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xca/0x120 print_unlock_imbalance_bug+0x118/0x130 lock_release+0x1ee/0x270 __wait_on_freeing_inode+0x10a/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_symlink+0x623/0xb40 vfs_symlink+0x44b/0x840 do_symlinkat+0x153/0x440 __x64_sys_symlink+0x79/0xa0 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc24c33b427 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 58 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcb089d9c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc24c33b427 RDX: 00007ffcb089daa3 RSI: 00007fc24c396022 RDI: 00007ffcb089da90 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffcb089d860 R10: 00007ffcb089d717 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffcb089da90 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#0: syz-executor.7/5171 Modules linked in: CPU: 0 UID: 0 PID: 5171 Comm: syz-executor.7 Not tainted 6.19.0-rc5-next-20260114 #1 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__rcu_read_unlock+0x25f/0x5c0 Code: f2 02 00 00 c7 43 58 01 00 00 00 bf 09 00 00 00 e8 16 c0 de ff 4d 85 f6 0f 84 73 fe ff ff e8 38 8a 20 00 fb e9 68 fe ff ff 90 <0f> 0b 90 5b 5d 41 5c 41 5d 41 5e e9 81 24 74 03 e8 bc 5c 56 00 e9 RSP: 0018:ffff88804db279a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff88804afd9b80 RCX: ffffffff81565a27 RDX: 0000000000000000 RSI: ffffffff81565a30 RDI: ffff88804afd9f7c RBP: ffff88804afd9b80 R08: 0000000000000000 R09: fffffbfff0ba6ffc R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804afd9b80 R13: 0000000000000001 R14: ffffffff85c0d420 R15: ffff88801b459628 FS: 000055557bf03400(0000) GS:ffff8880e5343000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff39b74fc8 CR3: 0000000048dfa000 CR4: 0000000000350ef0 Call Trace: __wait_on_freeing_inode+0x10f/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_symlink+0x623/0xb40 vfs_symlink+0x44b/0x840 do_symlinkat+0x153/0x440 __x64_sys_symlink+0x79/0xa0 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc24c33b427 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 58 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcb089d9c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc24c33b427 RDX: 00007ffcb089daa3 RSI: 00007fc24c396022 RDI: 00007ffcb089da90 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffcb089d860 R10: 00007ffcb089d717 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffcb089da90 irq event stamp: 277 hardirqs last enabled at (277): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (276): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (272): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (270): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- random: crng reseeded on system resumption FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 UID: 0 PID: 5189 Comm: syz-executor.7 Tainted: G W 6.19.0-rc5-next-20260114 #1 PREEMPT(lazy) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xfa/0x120 should_fail_ex+0x4d7/0x5e0 should_failslab+0xc2/0x120 __kmalloc_node_track_caller_noprof+0xd7/0x840 kmemdup_nul+0x3b/0xa0 security_context_to_sid_core+0xaf/0x850 selinux_inode_setxattr+0x408/0xb30 security_inode_setxattr+0x15a/0x1b0 __vfs_setxattr_locked+0xad/0x2b0 vfs_setxattr+0x14d/0x3a0 do_setxattr+0x147/0x190 file_setxattr+0x146/0x1b0 path_setxattrat+0x23d/0x2a0 __x64_sys_fsetxattr+0xc6/0x140 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc24c33bb19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc2498b1188 EFLAGS: 00000246 ORIG_RAX: 00000000000000be RAX: ffffffffffffffda RBX: 00007fc24c44ef60 RCX: 00007fc24c33bb19 RDX: 0000000020000200 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 00007fc2498b11d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000026 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffcb089d77f R14: 00007fc2498b1300 R15: 0000000000022000 random: crng reseeded on system resumption FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 UID: 0 PID: 5216 Comm: syz-executor.7 Tainted: G W 6.19.0-rc5-next-20260114 #1 PREEMPT(lazy) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xfa/0x120 should_fail_ex+0x4d7/0x5e0 should_failslab+0xc2/0x120 kmem_cache_alloc_noprof+0x80/0x760 jbd2__journal_start+0x193/0x820 __ext4_journal_start_sb+0x325/0x580 ext4_xattr_set+0x25c/0x350 __vfs_setxattr+0x174/0x1e0 __vfs_setxattr_noperm+0x129/0x670 __vfs_setxattr_locked+0x127/0x2b0 vfs_setxattr+0x14d/0x3a0 do_setxattr+0x147/0x190 file_setxattr+0x146/0x1b0 path_setxattrat+0x23d/0x2a0 __x64_sys_fsetxattr+0xc6/0x140 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc24c33bb19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc2498b1188 EFLAGS: 00000246 ORIG_RAX: 00000000000000be RAX: ffffffffffffffda RBX: 00007fc24c44ef60 RCX: 00007fc24c33bb19 RDX: 0000000020000200 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 00007fc2498b11d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000026 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffcb089d77f R14: 00007fc2498b1300 R15: 0000000000022000 9pnet_fd: p9_fd_create_tcp (5221): problem connecting socket to 127.0.0.1 random: crng reseeded on system resumption 9pnet_fd: p9_fd_create_tcp (5229): problem connecting socket to 127.0.0.1