===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260114 #1 Not tainted ------------------------------------- syz-executor.1/6038 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.1/6038: #0: ffff88800f7fc3f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff888048ee6cb8 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f810950 (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: 6038 Comm: syz-executor.1 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: 0033:0x7f468481a427 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:00007ffc5d827358 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f468481a427 RDX: 00007ffc5d827437 RSI: 00007f4684875019 RDI: 00007ffc5d827420 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffc5d8271f0 R10: 00007ffc5d8270a7 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffc5d827420 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.1/6038 Modules linked in: CPU: 1 UID: 0 PID: 6038 Comm: syz-executor.1 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:ffff88803b1b79a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff888019c60000 RCX: ffffffff81565a27 RDX: 0000000000000000 RSI: ffffffff81565a30 RDI: ffff888019c603fc RBP: ffff888019c60000 R08: 0000000000000000 R09: fffffbfff0ba6ffc R10: 0000000000000000 R11: 0000000000000001 R12: ffff888019c60000 R13: 0000000000000001 R14: ffffffff85c0c570 R15: ffff888048d1b2c0 FS: 0000555578c61400(0000) GS:ffff8880e5443000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f468489a541 CR3: 000000003c544000 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: 0033:0x7f468481a427 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:00007ffc5d827358 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f468481a427 RDX: 00007ffc5d827437 RSI: 00007f4684875019 RDI: 00007ffc5d827420 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffc5d8271f0 R10: 00007ffc5d8270a7 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffc5d827420 irq event stamp: 171 hardirqs last enabled at (171): [] irqentry_exit+0x17b/0x650 hardirqs last disabled at (170): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (164): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (162): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- program syz-executor.6 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.6 is using a deprecated SCSI ioctl, please convert it to SG_IO audit: type=1326 audit(1768382540.356:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6127 comm="syz-executor.1" exe="/syz-executor.1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f468481ab19 code=0x7ffc0000 audit: type=1326 audit(1768382540.356:14): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6127 comm="syz-executor.1" exe="/syz-executor.1" sig=0 arch=c000003e syscall=98 compat=0 ip=0x7f468481ab19 code=0x7ffc0000 audit: type=1326 audit(1768382540.356:15): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6127 comm="syz-executor.1" exe="/syz-executor.1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f468481ab19 code=0x7ffc0000 audit: type=1326 audit(1768382540.363:16): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6127 comm="syz-executor.1" exe="/syz-executor.1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f468481ab19 code=0x7ffc0000 audit: type=1326 audit(1768382540.382:17): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6127 comm="syz-executor.1" exe="/syz-executor.1" sig=0 arch=c000003e syscall=298 compat=0 ip=0x7f468481ab19 code=0x7ffc0000 audit: type=1326 audit(1768382540.385:18): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6127 comm="syz-executor.1" exe="/syz-executor.1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f468481ab19 code=0x7ffc0000 audit: type=1326 audit(1768382540.385:19): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6127 comm="syz-executor.1" exe="/syz-executor.1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f468481ab19 code=0x7ffc0000 audit: type=1326 audit(1768382540.387:20): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6127 comm="syz-executor.1" exe="/syz-executor.1" sig=0 arch=c000003e syscall=317 compat=0 ip=0x7f468481ab19 code=0x7ffc0000 audit: type=1326 audit(1768382540.402:21): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6127 comm="syz-executor.1" exe="/syz-executor.1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f468481ab19 code=0x7ffc0000 audit: type=1326 audit(1768382540.404:22): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6127 comm="syz-executor.1" exe="/syz-executor.1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f468481ab19 code=0x7ffc0000 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=6359 comm=syz-executor.2 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=6359 comm=syz-executor.2 process 'syz-executor.3' launched './file1' with NULL argv: empty string added SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=6382 comm=syz-executor.2 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=6398 comm=syz-executor.2 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=6410 comm=syz-executor.2 program syz-executor.7 is using a deprecated SCSI ioctl, please convert it to SG_IO ALSA: seq fatal error: cannot create timer (-22) ALSA: seq fatal error: cannot create timer (-22) program syz-executor.7 is using a deprecated SCSI ioctl, please convert it to SG_IO perf: interrupt took too long (2580 > 2500), lowering kernel.perf_event_max_sample_rate to 77000 perf: interrupt took too long (4110 > 4065), lowering kernel.perf_event_max_sample_rate to 48000 perf: interrupt took too long (5226 > 5137), lowering kernel.perf_event_max_sample_rate to 38000 perf: interrupt took too long (6566 > 6532), lowering kernel.perf_event_max_sample_rate to 30000 perf: interrupt took too long (8227 > 8207), lowering kernel.perf_event_max_sample_rate to 24000 perf: interrupt took too long (10285 > 10283), lowering kernel.perf_event_max_sample_rate to 19000 perf: interrupt took too long (12884 > 12856), lowering kernel.perf_event_max_sample_rate to 15000 cgroup: Bad value for 'name' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' kauditd_printk_skb: 14 callbacks suppressed audit: type=1400 audit(1768382548.860:37): avc: denied { tracepoint } for pid=6645 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 syz-executor.6 uses obsolete (PF_INET,SOCK_PACKET)