===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260114 #1 Not tainted ------------------------------------- syz-executor.3/4516 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.3/4516: #0: ffff88800f9983f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88801c0cecb8 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f99c950 (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: 4516 Comm: syz-executor.3 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: 0033:0x7f60ae666427 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:00007ffd180ebc48 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f60ae666427 RDX: 00007ffd180ebd23 RSI: 00007f60ae6c102f RDI: 00007ffd180ebd10 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd180ebae0 R10: 00007ffd180eb997 R11: 0000000000000206 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd180ebd10 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#0: syz-executor.3/4516 Modules linked in: CPU: 0 UID: 0 PID: 4516 Comm: syz-executor.3 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:ffff8880279679a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff888046e81b80 RCX: ffffffff81565a27 RDX: 0000000000000000 RSI: ffffffff81565a30 RDI: ffff888046e81f7c RBP: ffff888046e81b80 R08: 0000000000000000 R09: fffffbfff0ba6ffc R10: 0000000000000000 R11: 0000000000000001 R12: ffff888046e81b80 R13: 0000000000000001 R14: ffffffff85c0f360 R15: ffff88804a1145d0 FS: 000055556bf3a400(0000) GS:ffff8880e5343000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f60ae6e6543 CR3: 000000001d873000 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: 0033:0x7f60ae666427 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:00007ffd180ebc48 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f60ae666427 RDX: 00007ffd180ebd23 RSI: 00007f60ae6c102f RDI: 00007ffd180ebd10 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd180ebae0 R10: 00007ffd180eb997 R11: 0000000000000206 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd180ebd10 irq event stamp: 779 hardirqs last enabled at (779): [] irqentry_exit+0x17b/0x650 hardirqs last disabled at (777): [] handle_softirqs+0x65e/0x7d0 softirqs last enabled at (778): [] __irq_exit_rcu+0xc4/0x100 softirqs last disabled at (415): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. Bluetooth: hci1: Opcode 0x0c03 failed: -110 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. ======================================================= 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. ======================================================= Bluetooth: hci3: Opcode 0x0c03 failed: -110 Bluetooth: hci4: Opcode 0x0c03 failed: -110 9p: Bad value for 'wfdno' loop7: detected capacity change from 0 to 2048 EXT4-fs (loop7): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop7): group descriptors corrupted! loop7: detected capacity change from 0 to 2048 EXT4-fs (loop7): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop7): group descriptors corrupted! loop7: detected capacity change from 0 to 2048 loop4: detected capacity change from 0 to 132 EXT4-fs (loop7): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop7): group descriptors corrupted! loop7: detected capacity change from 0 to 2048 EXT4-fs (loop7): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop7): group descriptors corrupted! loop7: detected capacity change from 0 to 2048 EXT4-fs (loop7): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop7): group descriptors corrupted! process 'syz-executor.1' launched './file1' with NULL argv: empty string added audit: type=1400 audit(1768380950.950:12): avc: denied { relabelto } for pid=4928 comm="syz-executor.4" name="file0" dev="sda" ino=16006 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:zero_device_t:s0 tclass=dir permissive=1 audit: type=1400 audit(1768380950.951:13): avc: denied { read } for pid=4928 comm="syz-executor.4" name="file0" dev="sda" ino=16006 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:zero_device_t:s0 tclass=dir permissive=1 audit: type=1400 audit(1768380950.951:14): avc: denied { open } for pid=4928 comm="syz-executor.4" path="/syzkaller-testdir091315082/syzkaller.5BBY0T/61/file0" dev="sda" ino=16006 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:zero_device_t:s0 tclass=dir permissive=1 audit: type=1400 audit(1768380950.951:15): avc: denied { add_name search } for pid=4928 comm="syz-executor.4" name="file0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:zero_device_t:s0 tclass=dir permissive=1 audit: type=1400 audit(1768380950.951:16): avc: denied { create } for pid=4928 comm="syz-executor.4" name="file0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:zero_device_t:s0 tclass=dir permissive=1 audit: type=1400 audit(1768380951.053:17): avc: denied { relabelfrom } for pid=4928 comm="syz-executor.4" name="file0" dev="sda" ino=16006 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:zero_device_t:s0 tclass=dir permissive=1 audit: type=1400 audit(1768380951.070:18): avc: denied { read } for pid=4928 comm="syz-executor.4" name="file0" dev="sda" ino=16006 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:zero_device_t:s0 tclass=dir permissive=1 audit: type=1400 audit(1768380951.081:19): avc: denied { getattr } for pid=279 comm="syz-executor.4" path="/syzkaller-testdir091315082/syzkaller.5BBY0T/61/file0" dev="sda" ino=16006 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:zero_device_t:s0 tclass=dir permissive=1 audit: type=1400 audit(1768380951.087:20): avc: denied { remove_name } for pid=279 comm="syz-executor.4" name="file0" dev="sda" ino=16016 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:zero_device_t:s0 tclass=dir permissive=1 audit: type=1400 audit(1768380951.087:21): avc: denied { rmdir } for pid=279 comm="syz-executor.4" name="file0" dev="sda" ino=16016 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:zero_device_t:s0 tclass=dir permissive=1 loop1: detected capacity change from 0 to 6 FAT-fs (loop1): Directory bread(block 6) failed FAT-fs (loop1): Directory bread(block 6) failed FAT-fs (loop1): Directory bread(block 6) failed mmap: syz-executor.2 (5145) uses deprecated remap_file_pages() syscall. See Documentation/mm/remap_file_pages.rst. loop3: detected capacity change from 0 to 136 isofs_fill_super: get root inode failed loop3: detected capacity change from 0 to 136