audit: type=1401 audit(1768573808.381:14): op=fscreate invalid_context=550000007D000000003F0000000000000000000000000000000000000000000000000000000000000000000000000000000002007D5C07002FB92A2A2E28480100000200802801002601EE000000000000000000 ===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260116 #1 Not tainted ------------------------------------- syz-executor.0/4360 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.0/4360: #0: ffff88800f5be3f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88801f996330 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f732950 (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: 4360 Comm: syz-executor.0 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: 0033:0x7fde682eb427 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:00007ffe7ef15db8 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fde682eb427 RDX: 00007ffe7ef15e93 RSI: 00007fde6834602f RDI: 00007ffe7ef15e80 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffe7ef15c50 R10: 00007ffe7ef15b07 R11: 0000000000000206 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffe7ef15e80 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.0/4360 Modules linked in: CPU: 1 UID: 0 PID: 4360 Comm: syz-executor.0 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:ffff888047b0f9a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff888046ad3700 RCX: ffffffff815660f7 RDX: 0000000000000000 RSI: ffffffff81566100 RDI: ffff888046ad3afc RBP: ffff888046ad3700 R08: 0000000000000000 R09: fffffbfff0ba7040 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888046ad3700 R13: 0000000000000001 R14: ffffffff85c0dce0 R15: ffff88801faccf58 FS: 0000555567d23400(0000) GS:ffff8880e5442000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb2e1615208 CR3: 0000000047409000 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: 0033:0x7fde682eb427 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:00007ffe7ef15db8 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fde682eb427 RDX: 00007ffe7ef15e93 RSI: 00007fde6834602f RDI: 00007ffe7ef15e80 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffe7ef15c50 R10: 00007ffe7ef15b07 R11: 0000000000000206 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffe7ef15e80 irq event stamp: 427 hardirqs last enabled at (427): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (426): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (422): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (420): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- audit: type=1401 audit(1768573808.950:15): op=fscreate invalid_context=550000007D000000003F0000000000000000000000000000000000000000000000000000000000000000000000000000000002007D5C07002FB92A2A2E28480100000200802801002601EE000000000000000000 audit: type=1401 audit(1768573809.256:16): op=fscreate invalid_context=550000007D000000003F0000000000000000000000000000000000000000000000000000000000000000000000000000000002007D5C07002FB92A2A2E28480100000200802801002601EE000000000000000000 faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 random: crng reseeded on system resumption loop2: detected capacity change from 0 to 6 FAT-fs (loop2): bogus number of directory entries (56) FAT-fs (loop2): Can't find a valid FAT filesystem loop2: detected capacity change from 0 to 6 FAT-fs (loop2): bogus number of directory entries (56) FAT-fs (loop2): Can't find a valid FAT filesystem random: crng reseeded on system resumption loop2: detected capacity change from 0 to 6 FAT-fs (loop2): bogus number of directory entries (56) FAT-fs (loop2): Can't find a valid FAT filesystem syz-executor.5 (4411) used greatest stack depth: 22896 bytes left UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list loop2: detected capacity change from 0 to 6 FAT-fs (loop2): bogus number of directory entries (56) FAT-fs (loop2): Can't find a valid FAT filesystem faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 random: crng reseeded on system resumption SELinux: unrecognized netlink message: protocol=6 nlmsg_type=1792 sclass=netlink_xfrm_socket pid=4470 comm=syz-executor.7 loop2: detected capacity change from 0 to 6 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=1792 sclass=netlink_xfrm_socket pid=4486 comm=syz-executor.7 FAT-fs (loop2): bogus number of directory entries (56) FAT-fs (loop2): Can't find a valid FAT filesystem faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 random: crng reseeded on system resumption SELinux: unrecognized netlink message: protocol=6 nlmsg_type=1792 sclass=netlink_xfrm_socket pid=4498 comm=syz-executor.7 faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 random: crng reseeded on system resumption faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 random: crng reseeded on system resumption SELinux: unrecognized netlink message: protocol=6 nlmsg_type=1792 sclass=netlink_xfrm_socket pid=4510 comm=syz-executor.7 faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 random: crng reseeded on system resumption mmap: syz-executor.0 (4532): VmData 37371904 exceed data ulimit 0. Update limits or use boot option ignore_rlimit_data. loop7: detected capacity change from 0 to 2048 EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000. warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow capability: warning: `syz-executor.4' uses deprecated v2 capabilities in a way that may be insecure warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow