------------[ cut here ]------------ WARNING: CPU: 1 PID: 11867 at net/bluetooth/hci_conn.c:646 hci_conn_timeout+0x246/0x330 Modules linked in: CPU: 1 PID: 11867 Comm: kworker/u5:1 Not tainted 6.2.0-rc6-next-20230130 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Workqueue: hci1 hci_conn_timeout RIP: 0010:hci_conn_timeout+0x246/0x330 Code: ff e8 ee 2a 73 fd 4c 89 e7 e8 96 9c 0a 00 0f b6 e8 e8 de 2a 73 fd 89 ee 4c 89 e7 e8 84 f3 ff ff e9 1a ff ff ff e8 ca 2a 73 fd <0f> 0b e9 36 fe ff ff 84 c0 74 93 4c 89 ef e8 d7 75 a7 fd eb 89 48 RSP: 0018:ffff88803b92fce8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88801945e250 RCX: 0000000000000000 RDX: ffff888035d75040 RSI: ffffffff83d83386 RDI: 0000000000000005 RBP: 00000000fffffffb R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffffb R11: 0000000000000001 R12: ffff88803b92fdb0 R13: ffff88800dd45060 R14: ffff88800dd45000 R15: ffff88800fd68600 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff35537bd8 CR3: 000000002d8d4000 CR4: 0000000000350ee0 DR0: 0000000020000100 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: process_one_work+0xa0f/0x1790 worker_thread+0x63b/0x1260 kthread+0x2e9/0x3a0 ret_from_fork+0x2c/0x50 irq event stamp: 4669 hardirqs last enabled at (4679): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (4690): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (4370): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (4711): [] __irq_exit_rcu+0xcc/0x110 ---[ end trace 0000000000000000 ]--- Bluetooth: hci1: command 0x0406 tx timeout netlink: 16 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.7'. random: crng reseeded on system resumption random: crng reseeded on system resumption netlink: 16 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.7'. semctl(GETNCNT/GETZCNT) is since 3.16 Single Unix Specification compliant. The task syz-executor.0 (16413) triggered the difference, watch for misbehavior. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'.