===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260113 #1 Not tainted ------------------------------------- syz-executor.4/4143 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.4/4143: #0: ffff88800f91c3f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88804ac83d10 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f928950 (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: 4143 Comm: syz-executor.4 Not tainted 6.19.0-rc5-next-20260113 #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+0x406/0xb40 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: 0033:0x7f33c7107427 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:00007ffff2853898 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f33c7107427 RDX: 00007ffff2853973 RSI: 00007f33c716202f RDI: 00007ffff2853960 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffff2853730 R10: 00007ffff28535e7 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffff2853960 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.4/4143 Modules linked in: CPU: 1 UID: 0 PID: 4143 Comm: syz-executor.4 Not tainted 6.19.0-rc5-next-20260113 #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 a6 bb de ff 4d 85 f6 0f 84 73 fe ff ff e8 38 89 20 00 fb e9 68 fe ff ff 90 <0f> 0b 90 5b 5d 41 5c 41 5d 41 5e e9 61 f9 73 03 e8 0c 88 56 00 e9 RSP: 0018:ffff888049fdf9a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff8880197a5280 RCX: ffffffff815664c7 RDX: 0000000000000000 RSI: ffffffff815664d0 RDI: ffff8880197a567c RBP: ffff8880197a5280 R08: 0000000000000000 R09: fffffbfff0ba6ff4 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880197a5280 R13: 0000000000000001 R14: ffffffff85c108a0 R15: ffff88804ac88ca0 FS: 0000555591cd4400(0000) GS:ffff8880e5442000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555571c1ec58 CR3: 000000000c217000 CR4: 0000000000350ef0 Call Trace: __wait_on_freeing_inode+0x10f/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_symlink+0x406/0xb40 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: 0033:0x7f33c7107427 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:00007ffff2853898 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f33c7107427 RDX: 00007ffff2853973 RSI: 00007f33c716202f RDI: 00007ffff2853960 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffff2853730 R10: 00007ffff28535e7 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffff2853960 irq event stamp: 425 hardirqs last enabled at (425): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (424): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (420): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (418): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list loop4: detected capacity change from 0 to 2048 EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop4: detected capacity change from 0 to 2048 loop6: detected capacity change from 0 to 4 EXT4-fs (loop6): bad geometry: block count 256 exceeds size of device (2 blocks) EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop4: detected capacity change from 0 to 2048 loop6: detected capacity change from 0 to 4 EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop6): bad geometry: block count 256 exceeds size of device (2 blocks) EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop4: detected capacity change from 0 to 2048 loop6: detected capacity change from 0 to 4 EXT4-fs (loop6): bad geometry: block count 256 exceeds size of device (2 blocks) EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000. audit: type=1326 audit(1768298895.455:10): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4308 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fe35fdafb19 code=0x0 audit: type=1326 audit(1768298896.284:11): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4308 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fe35fdafb19 code=0x0 audit: type=1326 audit(1768298896.464:12): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4348 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fe35fdafb19 code=0x0 audit: type=1326 audit(1768298897.375:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4382 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fe35fdafb19 code=0x0 audit: type=1326 audit(1768298898.321:14): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4410 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fe35fdafb19 code=0x0 audit: type=1400 audit(1768298898.370:15): avc: denied { module_load } for pid=4424 comm="syz-executor.4" path="/syz-executor.4" dev="sda" ino=15934 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=system permissive=1 Invalid ELF header type: 3 != 1 Invalid ELF header type: 3 != 1 Invalid ELF header type: 3 != 1 Invalid ELF header type: 3 != 1 tmpfs: Unknown parameter 'ÆÃ\ÅTòßOO›Ç.\ž‡' Invalid ELF header type: 3 != 1 EXT4-fs: Invalid commit interval 14745599, must be smaller than 2147483 EXT4-fs: Invalid commit interval 14745599, must be smaller than 2147483 audit: type=1326 audit(1768298900.829:16): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4564 comm="syz-executor.5" exe="/syz-executor.5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f84c4cd2b19 code=0x0 sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive. process 'syz-executor.3' launched './file1' with NULL argv: empty string added audit: type=1400 audit(1768298900.943:17): avc: denied { read } for pid=4564 comm="syz-executor.5" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 audit: type=1326 audit(1768298901.635:18): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4564 comm="syz-executor.5" exe="/syz-executor.5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f84c4cd2b19 code=0x0 netlink: 20 bytes leftover after parsing attributes in process `syz-executor.3'. ieee80211 phy18: Selected rate control algorithm 'minstrel_ht' netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. tc_dump_action: action bad kind netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. tc_dump_action: action bad kind netlink: 20 bytes leftover after parsing attributes in process `syz-executor.3'. ieee80211 phy19: Selected rate control algorithm 'minstrel_ht'