===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260116 #1 Not tainted ------------------------------------- syz-executor.5/4032 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.5/4032: #0: ffff88800f4e63f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff8880549b16f0 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f4ba950 (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: 1 UID: 0 PID: 4032 Comm: syz-executor.5 Not tainted 6.19.0-rc5-next-20260116 #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 filename_symlinkat+0x158/0x440 __x64_sys_symlink+0x82/0x110 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0951e68427 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:00007ffe28af79a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0951e68427 RDX: 00007ffe28af7a83 RSI: 00007f0951ec3022 RDI: 00007ffe28af7a70 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffe28af7840 R10: 00007ffe28af76f7 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffe28af7a70 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.5/4032 Modules linked in: CPU: 1 UID: 0 PID: 4032 Comm: syz-executor.5 Not tainted 6.19.0-rc5-next-20260116 #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 d6 b7 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 4d 74 03 e8 2c 5d 56 00 e9 RSP: 0018:ffff88805ac179a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff888057f38000 RCX: ffffffff815660f7 RDX: 0000000000000000 RSI: ffffffff81566100 RDI: ffff888057f383fc RBP: ffff888057f38000 R08: 0000000000000000 R09: fffffbfff0ba7040 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888057f38000 R13: 0000000000000001 R14: ffffffff85c0e050 R15: ffff88805496f578 FS: 00005555709cb400(0000) GS:ffff8880e5442000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0951ee8545 CR3: 000000005970d000 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 filename_symlinkat+0x158/0x440 __x64_sys_symlink+0x82/0x110 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0951e68427 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:00007ffe28af79a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0951e68427 RDX: 00007ffe28af7a83 RSI: 00007f0951ec3022 RDI: 00007ffe28af7a70 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffe28af7840 R10: 00007ffe28af76f7 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffe28af7a70 irq event stamp: 273 hardirqs last enabled at (273): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (272): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (268): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (266): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- loop6: detected capacity change from 0 to 512 EXT4-fs (loop6): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (loop6): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop6): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop6: detected capacity change from 0 to 512 EXT4-fs (loop6): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (loop6): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop6): unmounting filesystem 00000000-0000-0000-0000-000000000000. ======================================================= 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. ======================================================= loop6: detected capacity change from 0 to 512 EXT4-fs (loop6): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (loop6): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop6): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop6: detected capacity change from 0 to 512 EXT4-fs (loop6): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (loop6): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop6): unmounting filesystem 00000000-0000-0000-0000-000000000000. capability: warning: `syz-executor.5' uses deprecated v2 capabilities in a way that may be insecure audit: type=1400 audit(1768574755.996:10): avc: denied { write } for pid=4227 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 audit: type=1400 audit(1768574756.906:11): avc: denied { write } for pid=4275 comm="syz-executor.0" name="mnt" dev="proc" ino=6098 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=lnk_file permissive=1 program syz-executor.2 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.2 is using a deprecated SCSI ioctl, please convert it to SG_IO netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. ref_ctr_offset mismatch. inode: 0x3e80 offset: 0x0 ref_ctr_offset(old): 0x0 ref_ctr_offset(new): 0x4 program syz-executor.2 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.0 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.2 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.0 is using a deprecated SCSI ioctl, please convert it to SG_IO netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. program syz-executor.0 is using a deprecated SCSI ioctl, please convert it to SG_IO netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. ref_ctr_offset mismatch. inode: 0x3e7c offset: 0x0 ref_ctr_offset(old): 0x0 ref_ctr_offset(new): 0x4 program syz-executor.0 is using a deprecated SCSI ioctl, please convert it to SG_IO netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. program syz-executor.0 is using a deprecated SCSI ioctl, please convert it to SG_IO ref_ctr_offset mismatch. inode: 0x3e86 offset: 0x0 ref_ctr_offset(old): 0x0 ref_ctr_offset(new): 0x4 ref_ctr_offset mismatch. inode: 0x3e75 offset: 0x0 ref_ctr_offset(old): 0x0 ref_ctr_offset(new): 0x4 syz-executor.5 (4486) used greatest stack depth: 23864 bytes left UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list tmpfs: Bad value for 'mpol' loop6: detected capacity change from 0 to 264192 tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' loop6: detected capacity change from 0 to 264192 tmpfs: Bad value for 'mpol' loop6: detected capacity change from 0 to 264192 tmpfs: Bad value for 'mpol' loop6: detected capacity change from 0 to 264192 tmpfs: Bad value for 'mpol' loop1: detected capacity change from 0 to 264192 tmpfs: Bad value for 'mpol' loop2: detected capacity change from 0 to 264192 tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' loop2: detected capacity change from 0 to 264192