INFO: task hung in dev_ioctl
From: Hui Guo <hidden>
Date: 2024-08-26 13:59:56
Also in:
lkml
Hi Kernel Maintainers, Our tool found the following kernel bug INFO: task hung in dev_ioctl on: HEAD Commit: 6e4436539ae182dc86d57d13849862bcafaa4709 Merge tag 'execve-v6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux console output: https://github.com/androidAppGuard/KernelBugs/blob/main/6e4436539ae182dc86d57d13849862bcafaa4709/0d0049d3716f322084940a1d76d1d1b243c3afef/log0 kernel config: https://github.com/androidAppGuard/KernelBugs/blob/main/6b0f8db921abf0520081d779876d3a41069dab95/.config repro log: https://github.com/androidAppGuard/KernelBugs/blob/main/6e4436539ae182dc86d57d13849862bcafaa4709/0d0049d3716f322084940a1d76d1d1b243c3afef/repro0 Unfortunately, I don't have any reproducer for this issue yet. Please let me know if there is anything I can help. Best, HuiGuo ====================================[cut here]=========================================== INFO: task syz-executor.5:17228 blocked for more than 143 seconds. Not tainted 6.11.0-rc4-00008-g6e4436539ae1 #2 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:28368 pid:17228 tgid:17221 ppid:8441 flags:0x00100006 Call Trace: <TASK> context_switch data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/sched/core.c:5188 [inline] __schedule+0xc3f/0x5390 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/sched/core.c:6529 __schedule_loop data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/sched/core.c:6606 [inline] schedule+0xe7/0x350 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/sched/core.c:6678 __mutex_lock_common data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/locking/mutex.c:684 [inline] __mutex_lock+0x508/0x930 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/locking/mutex.c:752 dev_ioctl+0x1c8/0x10c0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/dev_ioctl.c:808 sock_ioctl+0x5d3/0x6d0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/socket.c:1268 vfs_ioctl data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/fs/ioctl.c:51 [inline] __do_sys_ioctl data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/fs/ioctl.c:907 [inline] __se_sys_ioctl data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x1a4/0x210 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/fs/ioctl.c:893 do_syscall_x64 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcb/0x250 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa4740afb2d RSP: 002b:00007fa474ed0028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fa4741ece80 RCX: 00007fa4740afb2d RDX: 00000000200006c0 RSI: 00000000000089f0 RDI: 0000000000000006 RBP: 00007fa47410b4a1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fa4741ece80 R15: 00007fa474eb0000 </TASK> INFO: task syz-executor.5:17290 blocked for more than 143 seconds. Not tainted 6.11.0-rc4-00008-g6e4436539ae1 #2 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:27840 pid:17290 tgid:17221 ppid:8441 flags:0x00000006 Call Trace: <TASK> context_switch data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/sched/core.c:5188 [inline] __schedule+0xc3f/0x5390 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/sched/core.c:6529 __schedule_loop data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/sched/core.c:6606 [inline] schedule+0xe7/0x350 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/sched/core.c:6678 __mutex_lock_common data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/locking/mutex.c:684 [inline] __mutex_lock+0x508/0x930 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/locking/mutex.c:752 do_ip_setsockopt+0x18a1/0x3780 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/ipv4/ip_sockglue.c:1077 ip_setsockopt+0x59/0xf0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/ipv4/ip_sockglue.c:1417 udp_setsockopt+0x84/0xd0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/ipv4/udp.c:2806 ipv6_setsockopt+0x178/0x1a0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/ipv6/ipv6_sockglue.c:988 do_sock_setsockopt+0x227/0x480 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/socket.c:2324 __sys_setsockopt+0x1a6/0x270 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/socket.c:2347 __do_sys_setsockopt data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/socket.c:2356 [inline] __se_sys_setsockopt data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/socket.c:2353 [inline] __x64_sys_setsockopt+0xbd/0x160 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/socket.c:2353 do_syscall_x64 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcb/0x250 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa4740afb2d RSP: 002b:00007fa474eaf028 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fa4741ecf50 RCX: 00007fa4740afb2d RDX: 0000000000000030 RSI: 0000000000000000 RDI: 0000000000000006 RBP: 00007fa47410b4a1 R08: 0000000000000190 R09: 0000000000000000 R10: 0000000020000bc0 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fa4741ecf50 R15: 00007fa474e8f000 </TASK> Showing all locks held in the system: 2 locks held by systemd/1: 1 lock held by khungtaskd/30: #0: ffffffff8dbb8c60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/rcupdate.h:326 [inline] #0: ffffffff8dbb8c60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/rcupdate.h:838 [inline] #0: ffffffff8dbb8c60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/locking/lockdep.c:6626 6 locks held by kworker/u8:2/35: #0: ffff8880162de148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x11ec/0x1ad0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/workqueue.c:3206 #1: ffffc90000577d88 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8ba/0x1ad0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/workqueue.c:3207 #2: ffffffff8f7f70d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xbb0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/net_namespace.c:594 #3: ffff88806a7300e8 (&dev->mutex){....}-{3:3}, at: device_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/device.h:1009 [inline] #3: ffff88806a7300e8 (&dev->mutex){....}-{3:3}, at: devl_dev_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/devlink/devl_internal.h:108 [inline] #3: ffff88806a7300e8 (&dev->mutex){....}-{3:3}, at: devlink_pernet_pre_exit+0x120/0x2a0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/devlink/core.c:506 #4: ffff88806a733250 (&devlink->lock_key#15){+.+.}-{3:3}, at: devl_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/devlink/core.c:276 [inline] #4: ffff88806a733250 (&devlink->lock_key#15){+.+.}-{3:3}, at: devl_dev_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/devlink/devl_internal.h:109 [inline] #4: ffff88806a733250 (&devlink->lock_key#15){+.+.}-{3:3}, at: devlink_pernet_pre_exit+0x12a/0x2a0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/devlink/core.c:506 #5: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x6b/0x6a0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/drivers/net/netdevsim/netdev.c:773 3 locks held by kworker/u8:4/62: 3 locks held by kswapd0/89: 2 locks held by kswapd1/90: 3 locks held by kworker/u8:7/1107: #0: ffff88801adcb948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x11ec/0x1ad0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/workqueue.c:3206 #1: ffffc90002f4fd88 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ba/0x1ad0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/workqueue.c:3207 #2: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/ipv6/addrconf.c:4734 3 locks held by kworker/u8:8/1121: #0: ffff888015481148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x11ec/0x1ad0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/workqueue.c:3206 #1: ffffc9000407fd88 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x8ba/0x1ad0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/workqueue.c:3207 #2: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xf/0x70 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/link_watch.c:276 2 locks held by systemd-journal/4676: #0: ffff8880239e2d78 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/fs.h:854 [inline] #0: ffff8880239e2d78 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x13ad/0x2510 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/filemap.c:3321 #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3891 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3916 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4322 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_noprof+0xa51/0x21e0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4708 2 locks held by systemd-udevd/4689: #0: ffff8880239d4168 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/fs.h:854 [inline] #0: ffff8880239d4168 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x13ad/0x2510 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/filemap.c:3321 #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3891 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3916 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4322 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_noprof+0xa51/0x21e0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4708 2 locks held by cron/7826: #0: ffff8880239d4168 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/fs.h:854 [inline] #0: ffff8880239d4168 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x13ad/0x2510 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/filemap.c:3321 #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3891 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3916 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4322 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_noprof+0xa51/0x21e0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4708 2 locks held by in:imklog/7890: #0: ffff88802385ad78 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/fs.h:854 [inline] #0: ffff88802385ad78 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x13ad/0x2510 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/filemap.c:3321 #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3891 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3916 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4322 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_noprof+0xa51/0x21e0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4708 2 locks held by syz-fuzzer/8340: #0: ffff888000e25558 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/fs.h:854 [inline] #0: ffff888000e25558 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x13ad/0x2510 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/filemap.c:3321 #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3891 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3916 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4322 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_noprof+0xa51/0x21e0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4708 2 locks held by syz-fuzzer/8344: #0: ffff888000e25558 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/fs.h:854 [inline] #0: ffff888000e25558 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x13ad/0x2510 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/filemap.c:3321 #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3891 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3916 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4322 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_noprof+0xa51/0x21e0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4708 2 locks held by syz-fuzzer/15739: #0: ffff888000e25558 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/fs.h:854 [inline] #0: ffff888000e25558 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x13ad/0x2510 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/filemap.c:3321 #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3891 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3916 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4322 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_noprof+0xa51/0x21e0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4708 3 locks held by kworker/1:5/13570: #0: ffff888015478948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x11ec/0x1ad0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/workqueue.c:3206 #1: ffffc9002a537d88 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x8ba/0x1ad0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/workqueue.c:3207 #2: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/switchdev/switchdev.c:104 3 locks held by kworker/1:9/14729: 1 lock held by syz-executor.4/14843: #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:79 [inline] #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x376/0xfb0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:6644 1 lock held by syz-executor.10/15197: #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:79 [inline] #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x376/0xfb0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:6644 2 locks held by syz-executor.13/15233: #0: ffff88802b6f0598 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/fs.h:854 [inline] #0: ffff88802b6f0598 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x13ad/0x2510 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/filemap.c:3321 #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3891 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3916 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4322 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_noprof+0xa51/0x21e0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4708 1 lock held by syz-executor.12/15240: #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:79 [inline] #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x376/0xfb0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:6644 1 lock held by syz-executor.1/15254: #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:79 [inline] #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x376/0xfb0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:6644 2 locks held by syz-executor.9/15269: #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:79 [inline] #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x376/0xfb0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:6644 #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3891 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:3916 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4322 [inline] #1: ffffffff8dd3cc80 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_noprof+0xa51/0x21e0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/mm/page_alloc.c:4708 1 lock held by syz-executor.14/15271: #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:79 [inline] #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x376/0xfb0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:6644 1 lock held by syz-executor.8/15270: #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:79 [inline] #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x376/0xfb0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:6644 1 lock held by syz-executor.15/15282: #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:79 [inline] #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x376/0xfb0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:6644 1 lock held by syz-executor.7/15280: #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:79 [inline] #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x376/0xfb0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/rtnetlink.c:6644 1 lock held by syz-executor.5/17228: #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x1c8/0x10c0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/core/dev_ioctl.c:808 1 lock held by syz-executor.5/17290: #0: ffffffff8f80c968 (rtnl_mutex){+.+.}-{3:3}, at: do_ip_setsockopt+0x18a1/0x3780 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/ipv4/ip_sockglue.c:1077 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc4-00008-g6e4436539ae1 #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Call Trace: <TASK> __dump_stack data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/lib/dump_stack.c:93 [inline] dump_stack_lvl+0x116/0x1b0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/lib/dump_stack.c:119 nmi_cpu_backtrace+0x2a0/0x350 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x29c/0x300 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/hung_task.c:223 [inline] watchdog+0xe5b/0x1180 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/hung_task.c:379 kthread+0x2ca/0x3b0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/kthread.c:389 ret_from_fork+0x48/0x80 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/arch/x86/entry/entry_64.S:244 </TASK> Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 62 Comm: kworker/u8:4 Not tainted 6.11.0-rc4-00008-g6e4436539ae1 #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Workqueue: bat_events batadv_nc_worker RIP: 0010:__local_bh_enable_ip+0xac/0x120 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/softirq.c:389 Code: 1d 01 8b b4 7e 65 8b 05 fa 8a b4 7e a9 00 ff ff 00 74 4d bf 01 00 00 00 e8 e1 5a 0b 00 e8 1c e8 41 00 fb 65 8b 05 dc 8a b4 7e <85> c0 74 52 5b 5d e9 69 ee a6 09 65 8b 05 1e 38 b3 7e 85 c0 75 9e RSP: 0018:ffffc90000eb7bb8 EFLAGS: 00000206 RAX: 0000000080000000 RBX: 00000000fffffe00 RCX: 1ffffffff287cf87 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffffff8ab8cbc8 R08: 0000000000000001 R09: fffffbfff2870efe R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000 R13: ffffffff8ab8c890 R14: 000000000000006c R15: ffff88807c308cc0 FS: 0000000000000000(0000) GS:ffff88802c400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4d1fd7b08c CR3: 000000000d97c000 CR4: 0000000000350ef0 Call Trace: <NMI> </NMI> <TASK> spin_unlock_bh data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/./include/linux/spinlock.h:396 [inline] batadv_nc_purge_paths+0x1c8/0x3b0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/batman-adv/network-coding.c:471 batadv_nc_worker+0x88c/0xf90 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/net/batman-adv/network-coding.c:720 process_one_work+0x95a/0x1ad0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/workqueue.c:3231 process_scheduled_works data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/workqueue.c:3312 [inline] worker_thread+0x680/0xeb0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/workqueue.c:3390 kthread+0x2ca/0x3b0 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/kernel/kthread.c:389 ret_from_fork+0x48/0x80 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 data/ghui/docker_data/linux_kernel/upstream/6b0f8db921abf0520081d779876d3a41069dab95/arch/x86/entry/entry_64.S:244 </TASK> ========================================================================================== This report is generated by reproducing the syz repro. It may contain errors.