===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260115 #1 Not tainted ------------------------------------- syz-executor.3/3862 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.3/3862: #0: ffff88800f2be3f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88800975f640 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800fdd2950 (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: 3862 Comm: syz-executor.3 Not tainted 6.19.0-rc5-next-20260115 #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: 0033:0x7f9c39b65427 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:00007fff2e75a708 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9c39b65427 RDX: 00007fff2e75a7e7 RSI: 00007f9c39bc0019 RDI: 00007fff2e75a7d0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff2e75a5a0 R10: 00007fff2e75a457 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007fff2e75a7d0 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#0: syz-executor.3/3862 Modules linked in: CPU: 0 UID: 0 PID: 3862 Comm: syz-executor.3 Not tainted 6.19.0-rc5-next-20260115 #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:ffff88801b2b79a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff8880495d8000 RCX: ffffffff815660f7 RDX: 0000000000000000 RSI: ffffffff81566100 RDI: ffff8880495d83fc RBP: ffff8880495d8000 R08: 0000000000000000 R09: fffffbfff0ba7040 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880495d8000 R13: 0000000000000001 R14: ffffffff85c0ce30 R15: ffff888009757578 FS: 000055558e778400(0000) GS:ffff8880e5342000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9c39bc0019 CR3: 000000000e488000 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: 0033:0x7f9c39b65427 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:00007fff2e75a708 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9c39b65427 RDX: 00007fff2e75a7e7 RSI: 00007f9c39bc0019 RDI: 00007fff2e75a7d0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff2e75a5a0 R10: 00007fff2e75a457 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007fff2e75a7d0 irq event stamp: 207 hardirqs last enabled at (207): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (206): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (202): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (200): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- ======================================================= 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. ======================================================= EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. ieee80211 phy10: Selected rate control algorithm 'minstrel_ht' ieee80211 phy11: Selected rate control algorithm 'minstrel_ht' wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 ieee80211 phy12: Selected rate control algorithm 'minstrel_ht' wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 ieee80211 phy13: Selected rate control algorithm 'minstrel_ht' wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 ieee80211 phy14: Selected rate control algorithm 'minstrel_ht' wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 ieee80211 phy15: Selected rate control algorithm 'minstrel_ht' wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 ieee80211 phy16: Selected rate control algorithm 'minstrel_ht' wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 ieee80211 phy17: Selected rate control algorithm 'minstrel_ht' wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list loop2: detected capacity change from 0 to 2048 EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. EXT4-fs error (device loop2): ext4_quota_enable:7179: comm syz-executor.2: Bad quota inum: 1985721955, type: 0 EXT4-fs warning (device loop2): ext4_enable_quotas:7224: Failed to enable quota tracking (type=0, err=-117, ino=1985721955). Please run e2fsck to fix. EXT4-fs (loop2): mount failed loop2: detected capacity change from 0 to 2048 EXT4-fs error (device loop2): ext4_quota_enable:7179: comm syz-executor.2: Bad quota inum: 1985721955, type: 0 EXT4-fs warning (device loop2): ext4_enable_quotas:7224: Failed to enable quota tracking (type=0, err=-117, ino=1985721955). Please run e2fsck to fix. EXT4-fs (loop2): mount failed audit: type=1400 audit(1768570852.589:12): avc: denied { block_suspend } for pid=3975 comm="syz-executor.6" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 Bluetooth: hci1: unexpected event 0x3e length: 431 > 260 Bluetooth: hci1: unexpected subevent 0x0d length: 430 > 260 Bluetooth: hci1: adv larger than maximum supported Bluetooth: hci1: adv larger than maximum supported Bluetooth: hci1: adv larger than maximum supported EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. loop2: detected capacity change from 0 to 2048 syz-executor.5 (3999): /proc/3994/oom_adj is deprecated, please use /proc/3994/oom_score_adj instead. EXT4-fs error (device loop2): ext4_quota_enable:7179: comm syz-executor.2: Bad quota inum: 1985721955, type: 0 EXT4-fs warning (device loop2): ext4_enable_quotas:7224: Failed to enable quota tracking (type=0, err=-117, ino=1985721955). Please run e2fsck to fix. EXT4-fs (loop2): mount failed