loop0: detected capacity change from 0 to 2048 program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO Invalid ELF header len 9 ===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260116 #1 Not tainted ------------------------------------- syz-executor.0/284 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.0/284: #0: ffff88800f9583f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88801b4f6330 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f95c950 (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: 284 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_mkdir+0x331/0xb30 vfs_mkdir+0x6d8/0xc00 filename_mkdirat+0x118/0x430 __x64_sys_mkdir+0x6e/0xd0 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2eb65efc27 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 53 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:00007ffd31524b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffd31524bc0 RCX: 00007f2eb65efc27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffd31524bc0 RBP: 00007ffd31524b9c R08: 0000000000000000 R09: 0000000000000004 R10: 00007ffd315248d6 R11: 0000000000000202 R12: 0000000000000032 R13: 0000000000035386 R14: 0000000000000004 R15: 00007ffd31524c00 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.0/284 Modules linked in: CPU: 1 UID: 0 PID: 284 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:ffff888018e9f9e0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff88800f961b80 RCX: ffffffff815660f7 RDX: 0000000000000000 RSI: ffffffff81566100 RDI: ffff88800f961f7c RBP: ffff88800f961b80 R08: 0000000000000000 R09: fffffbfff0ba7040 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800f961b80 R13: 0000000000000001 R14: ffffffff85c0cbb0 R15: ffff88801b7e9628 FS: 0000555560a3f400(0000) GS:ffff8880e5442000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555560a50c98 CR3: 000000000d2fb000 CR4: 0000000000350ef0 Call Trace: __wait_on_freeing_inode+0x10f/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_mkdir+0x331/0xb30 vfs_mkdir+0x6d8/0xc00 filename_mkdirat+0x118/0x430 __x64_sys_mkdir+0x6e/0xd0 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2eb65efc27 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 53 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:00007ffd31524b38 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffd31524bc0 RCX: 00007f2eb65efc27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffd31524bc0 RBP: 00007ffd31524b9c R08: 0000000000000000 R09: 0000000000000004 R10: 00007ffd315248d6 R11: 0000000000000202 R12: 0000000000000032 R13: 0000000000035386 R14: 0000000000000004 R15: 00007ffd31524c00 irq event stamp: 251555 hardirqs last enabled at (251555): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (251554): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (251550): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (251548): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- Invalid ELF header len 9 program syz-executor.6 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 1 UID: 0 PID: 4537 Comm: syz-executor.3 Tainted: G W 6.19.0-rc5-next-20260116 #1 PREEMPT(lazy) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xfa/0x120 should_fail_ex+0x4d7/0x5e0 should_failslab+0xc2/0x120 __kmalloc_cache_node_noprof+0x84/0x750 __get_vm_area_node+0xf0/0x290 __vmalloc_node_range_noprof+0x261/0x15e0 __vmalloc_node_noprof+0xac/0xf0 kernel_read_file+0x685/0x7b0 init_module_from_file+0xb7/0x180 idempotent_init_module+0x330/0x610 __x64_sys_finit_module+0xbd/0x120 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa0dfae3b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007fa0dd059188 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: 00007fa0dfbf6f60 RCX: 00007fa0dfae3b19 RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007fa0dd0591d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc411313df R14: 00007fa0dd059300 R15: 0000000000022000 syz-executor.3: vmalloc error: size 9, vm_struct allocation failed, mode:0xcc0(GFP_KERNEL), nodemask=(null),cpuset=/,mems_allowed=0 CPU: 1 UID: 0 PID: 4537 Comm: syz-executor.3 Tainted: G W 6.19.0-rc5-next-20260116 #1 PREEMPT(lazy) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xfa/0x120 warn_alloc+0x211/0x370 __vmalloc_node_range_noprof+0xe4d/0x15e0 __vmalloc_node_noprof+0xac/0xf0 kernel_read_file+0x685/0x7b0 init_module_from_file+0xb7/0x180 idempotent_init_module+0x330/0x610 __x64_sys_finit_module+0xbd/0x120 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa0dfae3b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007fa0dd059188 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: 00007fa0dfbf6f60 RCX: 00007fa0dfae3b19 RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007fa0dd0591d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc411313df R14: 00007fa0dd059300 R15: 0000000000022000 Mem-Info: active_anon:58 inactive_anon:56086 isolated_anon:0 active_file:7941 inactive_file:70846 isolated_file:0 unevictable:0 dirty:325 writeback:0 slab_reclaimable:5435 slab_unreclaimable:54641 mapped:80950 shmem:110 pagetables:2095 sec_pagetables:0 bounce:0 kernel_misc_reclaimable:0 free:133912 free_pcp:1407 free_cma:0 Node 0 active_anon:232kB inactive_anon:224344kB active_file:31764kB inactive_file:283384kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:323884kB dirty:1300kB writeback:0kB shmem:440kB kernel_stack:5856kB pagetables:8296kB sec_pagetables:0kB all_unreclaimable? no Balloon:0kB Node 0 DMA free:15360kB boost:0kB min:44kB low:56kB high:68kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB zspages:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 1597 1597 1597 Node 0 DMA32 free:519652kB boost:0kB min:5068kB low:6688kB high:8308kB reserved_highatomic:0KB free_highatomic:0KB active_anon:232kB inactive_anon:224512kB active_file:31764kB inactive_file:283384kB unevictable:0kB writepending:1300kB zspages:0kB present:2080640kB managed:1635448kB mlocked:0kB bounce:0kB free_pcp:6164kB local_pcp:1136kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15360kB Node 0 DMA32: 87*4kB (UE) 613*8kB (UME) 310*16kB (UME) 19*32kB (UME) 17*64kB (ME) 2*128kB (ME) 4*256kB (UME) 1*512kB (M) 2*1024kB (ME) 0*2048kB 123*4096kB (UM) = 519556kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 49203 total pagecache pages 0 pages in swap cache Free swap = 0kB Total swap = 0kB 524158 pages RAM 0 pages HighMem/MovableOnly 111456 pages reserved