INFO: task syz.0.389:5774 blocked for more than 144 seconds. Not tainted 5.15.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.389 state:D stack:23888 pid: 5774 ppid: 5502 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5027 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373 schedule+0x11b/0x1f0 kernel/sched/core.c:6456 io_schedule+0x88/0x100 kernel/sched/core.c:8481 wait_on_page_bit_common+0xa13/0x1180 mm/filemap.c:1356 wait_on_page_bit mm/filemap.c:1417 [inline] wait_on_page_locked include/linux/pagemap.h:688 [inline] wait_on_page_read mm/filemap.c:3437 [inline] do_read_cache_page+0x9c1/0x1040 mm/filemap.c:3480 read_mapping_page include/linux/pagemap.h:515 [inline] find_target_block_classic fs/erofs/namei.c:104 [inline] erofs_namei+0x15e/0x1700 fs/erofs/namei.c:184 erofs_lookup+0x1c0/0x460 fs/erofs/namei.c:228 __lookup_slow+0x275/0x3d0 fs/namei.c:1663 lookup_slow+0x53/0x70 fs/namei.c:1680 walk_component+0x48c/0x610 fs/namei.c:1976 link_path_walk+0x642/0xd90 path_lookupat+0xa9/0x450 fs/namei.c:2454 filename_lookup+0x230/0x5c0 fs/namei.c:2484 user_path_at_empty+0x40/0x180 fs/namei.c:2883 user_path_at include/linux/namei.h:57 [inline] path_setxattr+0xae/0x2a0 fs/xattr.c:625 __do_sys_setxattr fs/xattr.c:646 [inline] __se_sys_setxattr fs/xattr.c:642 [inline] __x64_sys_setxattr+0xb7/0xd0 fs/xattr.c:642 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f6b10ac5ff9 RSP: 002b:00007f6b0ef3e038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007f6b10c7df80 RCX: 00007f6b10ac5ff9 RDX: 00000000200001c0 RSI: 0000000000000000 RDI: 0000000020000180 RBP: 00007f6b10b38296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000386 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6b10c7df80 R15: 00007ffe047e87a8 INFO: task syz.0.389:5777 blocked for more than 144 seconds. Not tainted 5.15.168-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.389 state:D stack:26880 pid: 5777 ppid: 5502 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5027 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373 schedule+0x11b/0x1f0 kernel/sched/core.c:6456 io_schedule+0x88/0x100 kernel/sched/core.c:8481 wait_on_page_bit_common+0xa13/0x1180 mm/filemap.c:1356 lock_page include/linux/pagemap.h:625 [inline] pickup_page_for_submission fs/erofs/zdata.c:1135 [inline] z_erofs_submit_queue fs/erofs/zdata.c:1306 [inline] z_erofs_runqueue+0x788/0x1a80 fs/erofs/zdata.c:1367 z_erofs_readahead+0xc9a/0x1280 fs/erofs/zdata.c:1459 read_pages+0x159/0x8e0 mm/readahead.c:130 page_cache_ra_unbounded+0x7b0/0x930 mm/readahead.c:239 do_page_cache_ra mm/readahead.c:269 [inline] force_page_cache_ra+0x378/0x3e0 mm/readahead.c:301 force_page_cache_readahead mm/internal.h:59 [inline] generic_fadvise+0x5ba/0x8b0 mm/fadvise.c:107 vfs_fadvise mm/fadvise.c:186 [inline] ksys_fadvise64_64 mm/fadvise.c:200 [inline] __do_sys_fadvise64 mm/fadvise.c:215 [inline] __se_sys_fadvise64 mm/fadvise.c:213 [inline] __x64_sys_fadvise64+0x138/0x180 mm/fadvise.c:213 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f6b10ac5ff9 RSP: 002b:00007f6b0ef1d038 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd RAX: ffffffffffffffda RBX: 00007f6b10c7e058 RCX: 00007f6b10ac5ff9 RDX: 0000000000004101 RSI: 0000000000e0ffff RDI: 0000000000000004 RBP: 00007f6b10b38296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f6b10c7e058 R15: 00007ffe047e87a8 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8c91fc20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by getty/3325: #0: ffff88814b5a2098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252 #1: ffffc9000208e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158 3 locks held by kworker/u4:10/3676: 4 locks held by kworker/u4:12/3819: #0: ffff8880171cd938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc9000150fd20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 #2: ffffffff8da265d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf1/0xb60 net/core/net_namespace.c:561 #3: ffffffff8c9240f0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x9c/0x4e0 kernel/rcu/tree.c:4039 3 locks held by kworker/1:20/5770: 1 lock held by syz.0.389/5774: #0: ffff88804125c180 (&type->i_mutex_dir_key#24){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:799 [inline] #0: ffff88804125c180 (&type->i_mutex_dir_key#24){.+.+}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1679 1 lock held by syz.0.389/5777: #0: ffff88804125c320 (mapping.invalidate_lock#5){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:844 [inline] #0: ffff88804125c320 (mapping.invalidate_lock#5){.+.+}-{3:3}, at: page_cache_ra_unbounded+0x1a6/0x930 mm/readahead.c:195 2 locks held by kworker/u4:18/6086: #0: ffff888017079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc90002f47d20 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 3 locks held by udevd/6437: 1 lock held by syz.2.675/7106: 1 lock held by syz.1.688/7162: 2 locks held by dhcpcd-run-hook/7163: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.168-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xe72/0xeb0 kernel/hung_task.c:295 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 144 Comm: kworker/u4:1 Not tainted 5.15.168-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: phy49 ieee80211_iface_work RIP: 0010:rht_key_hashfn include/linux/rhashtable.h:159 [inline] RIP: 0010:__rhashtable_lookup include/linux/rhashtable.h:596 [inline] RIP: 0010:rhltable_lookup include/linux/rhashtable.h:688 [inline] RIP: 0010:sta_info_hash_lookup+0xe0/0x550 net/mac80211/sta_info.c:162 Code: 44 24 38 48 8d 85 a4 0a 00 00 48 89 44 24 30 48 81 c5 a2 0a 00 00 48 89 2c 24 49 8d 7e 08 48 89 f8 48 c1 e8 03 42 0f b6 04 20 <84> c0 0f 85 8f 03 00 00 41 8b 56 08 48 8b 7c 24 10 be 06 00 00 00 RSP: 0018:ffffc900016ff918 EFLAGS: 00000a02 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88801c075940 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888073483508 RBP: ffff88802dcd9842 R08: ffffffff89bd5f4d R09: fffffbfff20ec621 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88802dcdb550 R14: ffff888073483500 R15: ffff88802dcd8da0 FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2b8b32 CR3: 000000007e818000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sta_info_get+0xcc/0x240 net/mac80211/sta_info.c:174 ieee80211_update_sta_info net/mac80211/ibss.c:1004 [inline] ieee80211_rx_bss_info net/mac80211/ibss.c:1121 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1614 [inline] ieee80211_ibss_rx_queued_mgmt+0xf30/0x2af0 net/mac80211/ibss.c:1643 ieee80211_iface_process_skb net/mac80211/iface.c:1456 [inline] ieee80211_iface_work+0x78f/0xcc0 net/mac80211/iface.c:1510 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287