INFO: task syz-executor.5:17641 blocked for more than 143 seconds. Not tainted 5.17.0-rc2-syzkaller-00398-gd8ad2ce873ab #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:25280 pid:17641 ppid: 3634 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4db0 kernel/sched/core.c:6295 schedule+0xd2/0x260 kernel/sched/core.c:6368 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6427 __mutex_lock_common kernel/locking/mutex.c:673 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733 tls_sw_sendpage+0x7f/0xe0 net/tls/tls_sw.c:1291 inet_sendpage+0xd0/0x140 net/ipv4/af_inet.c:833 kernel_sendpage.part.0+0x1a0/0x340 net/socket.c:3492 kernel_sendpage net/socket.c:3489 [inline] sock_sendpage+0xe5/0x140 net/socket.c:1007 pipe_to_sendpage+0x2ad/0x380 fs/splice.c:364 splice_from_pipe_feed fs/splice.c:418 [inline] __splice_from_pipe+0x43e/0x8a0 fs/splice.c:562 splice_from_pipe fs/splice.c:597 [inline] generic_splice_sendpage+0xd4/0x140 fs/splice.c:746 do_splice_from fs/splice.c:767 [inline] direct_splice_actor+0x110/0x180 fs/splice.c:936 splice_direct_to_actor+0x34b/0x8c0 fs/splice.c:891 do_splice_direct+0x1b3/0x280 fs/splice.c:979 do_sendfile+0xaf2/0x1250 fs/read_write.c:1245 __do_sys_sendfile64 fs/read_write.c:1310 [inline] __se_sys_sendfile64 fs/read_write.c:1296 [inline] __x64_sys_sendfile64+0x1cc/0x210 fs/read_write.c:1296 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fac5cde0059 RSP: 002b:00007fac5b755168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fac5cef2f60 RCX: 00007fac5cde0059 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004 RBP: 00007fac5ce3a08d R08: 0000000000000000 R09: 0000000000000000 R10: 000000007ffff000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fac5d426b1f R14: 00007fac5b755300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8bb83c20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460 2 locks held by kworker/u4:2/44: 2 locks held by getty/3274: #0: ffff888023777098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc90002b662e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077 3 locks held by kworker/1:5/3663: #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:631 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:658 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x890/0x1650 kernel/workqueue.c:2278 #1: ffffc90002b9fdb8 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8c4/0x1650 kernel/workqueue.c:2282 #2: ffff888059c6b4d8 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x127/0x190 net/tls/tls_sw.c:2299 1 lock held by syz-executor.5/17641: #0: ffff888059c6b4d8 (&ctx->tx_lock){+.+.}-{3:3}, at: tls_sw_sendpage+0x7f/0xe0 net/tls/tls_sw.c:1291 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.17.0-rc2-syzkaller-00398-gd8ad2ce873ab #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline] watchdog+0xc1d/0xf50 kernel/hung_task.c:369 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 9131 Comm: kworker/u4:8 Not tainted 5.17.0-rc2-syzkaller-00398-gd8ad2ce873ab #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: phy4 ieee80211_iface_work RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:59 [inline] RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:342 [inline] RIP: 0010:deref_stack_reg+0x81/0x150 arch/x86/kernel/unwind_orc.c:352 Code: 85 c3 00 00 00 49 8d 7c 24 10 4d 8b 6c 24 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 94 00 00 00 <49> 39 ed 49 8b 44 24 10 77 13 48 39 e8 76 0e 48 8d 55 08 48 39 d0 RSP: 0018:ffffc900048874a8 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffffc900048875f8 RCX: ffffffff8e9d3b1f RDX: 1ffff92000910eb8 RSI: ffffc90004887ae0 RDI: ffffc900048875c0 RBP: ffffc90004887ae0 R08: ffffffff8e9d3b1a R09: 0000000000000001 R10: fffff52000910ec1 R11: 0000000000088078 R12: ffffc900048875b0 R13: ffffc90004880000 R14: ffffc900048875b0 R15: ffffffff8e9d3b1e FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007eff0bbf8600 CR3: 000000000b88e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000006b DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: unwind_next_frame+0xcdc/0x1ce0 arch/x86/kernel/unwind_orc.c:534 arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free+0x130/0x160 mm/kasan/common.c:328 kasan_slab_free include/linux/kasan.h:236 [inline] slab_free_hook mm/slub.c:1728 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1754 slab_free mm/slub.c:3509 [inline] kfree+0xcb/0x280 mm/slub.c:4562 ieee80211_bss_info_update+0x536/0xb00 net/mac80211/scan.c:232 ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline] ieee80211_ibss_rx_queued_mgmt+0x19cf/0x3150 net/mac80211/ibss.c:1639 ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline] ieee80211_iface_work+0xa69/0xd00 net/mac80211/iface.c:1581 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307 worker_thread+0x657/0x1110 kernel/workqueue.c:2454 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess): 0: 85 c3 test %eax,%ebx 2: 00 00 add %al,(%rax) 4: 00 49 8d add %cl,-0x73(%rcx) 7: 7c 24 jl 0x2d 9: 10 4d 8b adc %cl,-0x75(%rbp) c: 6c insb (%dx),%es:(%rdi) d: 24 08 and $0x8,%al f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 16: fc ff df 19: 48 89 fa mov %rdi,%rdx 1c: 48 c1 ea 03 shr $0x3,%rdx 20: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 24: 0f 85 94 00 00 00 jne 0xbe * 2a: 49 39 ed cmp %rbp,%r13 <-- trapping instruction 2d: 49 8b 44 24 10 mov 0x10(%r12),%rax 32: 77 13 ja 0x47 34: 48 39 e8 cmp %rbp,%rax 37: 76 0e jbe 0x47 39: 48 8d 55 08 lea 0x8(%rbp),%rdx 3d: 48 39 d0 cmp %rdx,%rax