------------[ cut here ]------------ do not call blocking ops when !TASK_RUNNING; state=2 set at [] __mutex_waiter_is_first kernel/locking/mutex.c:194 [inline] do not call blocking ops when !TASK_RUNNING; state=2 set at [] __mutex_lock_common kernel/locking/mutex.c:675 [inline] do not call blocking ops when !TASK_RUNNING; state=2 set at [] __mutex_lock+0xa46/0x12f0 kernel/locking/mutex.c:733 WARNING: CPU: 0 PID: 3640 at kernel/sched/core.c:9656 __might_sleep+0x105/0x150 kernel/sched/core.c:9656 Modules linked in: CPU: 0 PID: 3640 Comm: syz-executor.5 Tainted: G W 5.17.0-syzkaller-12882-g1930a6e739c4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__might_sleep+0x105/0x150 kernel/sched/core.c:9656 Code: 70 02 00 48 8d bb f0 16 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 34 48 8b 93 f0 16 00 00 48 c7 c7 00 df cb 89 e8 92 48 c8 07 <0f> 0b e9 75 ff ff ff e8 2f 29 73 00 e9 26 ff ff ff 89 34 24 e8 32 RSP: 0018:ffffc90000007d68 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888018703a00 RCX: 0000000000000000 RDX: ffff888018703a00 RSI: ffffffff815fcd18 RDI: fffff52000000f9f RBP: ffffffff8a2479c0 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff815f76ee R11: 0000000000000000 R12: 00000000000002fe R13: 0000000000000000 R14: ffffffff8a247dc0 R15: 0000000000000000 FS: 0000555555754400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 000000007432c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blk_release_queue+0x1f/0x320 block/blk-sysfs.c:766 kobject_cleanup lib/kobject.c:705 [inline] kobject_release lib/kobject.c:736 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1c8/0x540 lib/kobject.c:753 blkg_free.part.0+0x112/0x1f0 block/blk-cgroup.c:86 blkg_free block/blk-cgroup.c:78 [inline] __blkg_release+0x105/0x160 block/blk-cgroup.c:102 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0x7b1/0x1880 kernel/rcu/tree.c:2786 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:kasan_check_range+0x12b/0x180 mm/kasan/generic.c:190 Code: 3a 00 74 ef 49 8d 04 2c 48 85 d2 75 0b 48 89 da 48 29 c2 e9 55 ff ff ff 49 39 d2 75 17 49 0f be 02 41 83 e1 07 49 39 c1 7d 0a <5b> b8 01 00 00 00 5d 41 5c c3 44 89 c2 e8 c3 ef ff ff 5b 83 f0 01 RSP: 0018:ffffc9000425f778 EFLAGS: 00000246 RAX: ffffed10030e0741 RBX: ffffed10030e0741 RCX: ffffffff815bf17e RDX: ffffed10030e0741 RSI: 0000000000000008 RDI: ffff888018703a00 RBP: ffffed10030e0740 R08: 0000000000000000 R09: ffff888018703a07 R10: ffffed10030e0740 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000000 R14: ffff888018703a00 R15: ffffed10030e0740 instrument_atomic_read include/linux/instrumented.h:71 [inline] test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline] test_ti_thread_flag include/linux/thread_info.h:118 [inline] need_resched include/linux/sched.h:2156 [inline] mutex_spin_on_owner+0x14e/0x2e0 kernel/locking/mutex.c:370 mutex_optimistic_spin kernel/locking/mutex.c:473 [inline] __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0xd65/0x12f0 kernel/locking/mutex.c:733 rtnl_lock net/core/rtnetlink.c:72 [inline] rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5987 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2496 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:725 __sys_sendto+0x216/0x310 net/socket.c:2040 __do_sys_sendto net/socket.c:2052 [inline] __se_sys_sendto net/socket.c:2048 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2048 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fb9d503be0c Code: fa fa ff ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 20 fb ff ff 48 8b RSP: 002b:00007fb9d56cf700 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fb9d60d4320 RCX: 00007fb9d503be0c RDX: 0000000000000020 RSI: 00007fb9d60d4370 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007fb9d56cf754 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007fb9d60d4370 R14: 0000000000000003 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 3a 00 cmp (%rax),%al 2: 74 ef je 0xfffffff3 4: 49 8d 04 2c lea (%r12,%rbp,1),%rax 8: 48 85 d2 test %rdx,%rdx b: 75 0b jne 0x18 d: 48 89 da mov %rbx,%rdx 10: 48 29 c2 sub %rax,%rdx 13: e9 55 ff ff ff jmpq 0xffffff6d 18: 49 39 d2 cmp %rdx,%r10 1b: 75 17 jne 0x34 1d: 49 0f be 02 movsbq (%r10),%rax 21: 41 83 e1 07 and $0x7,%r9d 25: 49 39 c1 cmp %rax,%r9 28: 7d 0a jge 0x34 * 2a: 5b pop %rbx <-- trapping instruction 2b: b8 01 00 00 00 mov $0x1,%eax 30: 5d pop %rbp 31: 41 5c pop %r12 33: c3 retq 34: 44 89 c2 mov %r8d,%edx 37: e8 c3 ef ff ff callq 0xffffefff 3c: 5b pop %rbx 3d: 83 f0 01 xor $0x1,%eax