INFO: task syz.2.490:9239 blocked for more than 143 seconds. Not tainted 6.11.0-rc6-syzkaller-00075-gad618736883b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.490 state:D stack:25776 pid:9239 tgid:9238 ppid:9017 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 __super_lock fs/super.c:58 [inline] super_lock+0x27c/0x400 fs/super.c:120 user_get_super+0xd2/0x180 fs/super.c:1000 quotactl_block fs/quota/quota.c:890 [inline] __do_sys_quotactl fs/quota/quota.c:955 [inline] __se_sys_quotactl+0x527/0xa30 fs/quota/quota.c:917 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f64bff7cef9 RSP: 002b:00007f64bf9ff038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3 RAX: ffffffffffffffda RBX: 00007f64c0135f80 RCX: 00007f64bff7cef9 RDX: 0000000000000000 RSI: 0000000020000280 RDI: ffffffff80000801 RBP: 00007f64bffef01e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f64c0135f80 R15: 00007ffe89908138 INFO: task syz.2.490:9240 blocked for more than 144 seconds. Not tainted 6.11.0-rc6-syzkaller-00075-gad618736883b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.490 state:D stack:27392 pid:9240 tgid:9238 ppid:9017 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 __super_lock fs/super.c:58 [inline] super_lock+0x27c/0x400 fs/super.c:120 user_get_super+0xd2/0x180 fs/super.c:1000 quotactl_block fs/quota/quota.c:890 [inline] __do_sys_quotactl fs/quota/quota.c:955 [inline] __se_sys_quotactl+0x527/0xa30 fs/quota/quota.c:917 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f64bff7cef9 RSP: 002b:00007f64bf9de038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3 RAX: ffffffffffffffda RBX: 00007f64c0136058 RCX: 00007f64bff7cef9 RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffff80000801 RBP: 00007f64bffef01e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000f00 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f64c0136058 R15: 00007ffe89908138 INFO: task syz.2.490:9241 blocked for more than 144 seconds. Not tainted 6.11.0-rc6-syzkaller-00075-gad618736883b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.490 state:D stack:27392 pid:9241 tgid:9238 ppid:9017 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline] __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0x705/0xa40 kernel/locking/rwsem.c:1528 __super_lock fs/super.c:58 [inline] super_lock+0x27c/0x400 fs/super.c:120 user_get_super+0xd2/0x180 fs/super.c:1000 quotactl_block fs/quota/quota.c:890 [inline] __do_sys_quotactl fs/quota/quota.c:955 [inline] __se_sys_quotactl+0x527/0xa30 fs/quota/quota.c:917 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f64bff7cef9 RSP: 002b:00007f64bf9bd038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3 RAX: ffffffffffffffda RBX: 00007f64c0136130 RCX: 00007f64bff7cef9 RDX: 0000000000000000 RSI: 0000000020000c80 RDI: ffffffff80000900 RBP: 00007f64bffef01e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f64c0136130 R15: 00007ffe89908138 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline] #0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6626 3 locks held by kworker/u8:12/2995: 2 locks held by getty/4987: #0: ffff8880302850a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ac/0x1e00 drivers/tty/n_tty.c:2211 2 locks held by syz-executor/8187: #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 #1: ffffffff8eb4bdc8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444 2 locks held by syz-executor/8645: #0: ffff88807c8cc0e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff88807c8cc0e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff88807c8cc0e0 (&type->s_umount_key#99){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 #1: ffffffff8eb4bdc8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444 1 lock held by syz.4.465/8970: #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120 1 lock held by syz.2.490/9239: #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120 1 lock held by syz.2.490/9240: #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120 1 lock held by syz.2.490/9241: #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120 1 lock held by syz.1.577/9877: #0: ffff88807c8cc0e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff88807c8cc0e0 (&type->s_umount_key#99){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120 2 locks held by syz-executor/9922: #0: ffff888035d2a0e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff888035d2a0e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff888035d2a0e0 (&type->s_umount_key#99){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 #1: ffffffff8eb4bdc8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444 1 lock held by syz.2.593/9986: #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120 2 locks held by syz-executor/10206: #0: ffff888055ecc0e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff888055ecc0e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff888055ecc0e0 (&type->s_umount_key#99){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 #1: ffffffff8eb4bdc8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444 1 lock held by syz.4.648/10507: #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120 1 lock held by syz.1.666/10560: #0: ffff88807c8cc0e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff88807c8cc0e0 (&type->s_umount_key#99){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120 1 lock held by syz-executor/10587: #0: ffffffff8e73d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:296 [inline] #0: ffffffff8e73d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:958 1 lock held by syz.3.681/10607: #0: ffff888035d2a0e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff888035d2a0e0 (&type->s_umount_key#99){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120 1 lock held by syz.2.691/10675: #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120 1 lock held by syz.2.722/10984: #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff8880644540e0 (&type->s_umount_key#99){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc6-syzkaller-00075-gad618736883b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xff4/0x1040 kernel/hung_task.c:379 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 1298 Comm: kworker/u8:7 Not tainted 6.11.0-rc6-syzkaller-00075-gad618736883b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:80 [inline] RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:102 [inline] RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline] RIP: 0010:unwind_next_frame+0x4fb/0x2a00 arch/x86/kernel/unwind_orc.c:494 Code: c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83 e0 fe 49 8d 5c 45 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 75 34 48 63 2b 48 01 dd 48 89 ef 4c 89 f6 e8 60 62 52 00 48 RSP: 0018:ffffc9000431f088 EFLAGS: 00000a06 RAX: 0000000000000000 RBX: ffffffff900a4908 RCX: dffffc0000000000 RDX: ffff888028a11e00 RSI: 00000000000185d2 RDI: 00000000000185d5 RBP: 0000000000007f2e R08: ffffffff81412a2e R09: ffffc9000431f250 R10: 0000000000000003 R11: ffffffff817f2f30 R12: ffffffff900a490c R13: ffffffff900a4904 R14: ffffffff817f2e67 R15: ffffffff900a4904 FS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555594e015c8 CR3: 000000002905a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slub.c:4162 [inline] __kmalloc_noprof+0x1fc/0x400 mm/slub.c:4174 kmalloc_noprof include/linux/slab.h:685 [inline] kzalloc_noprof include/linux/slab.h:807 [inline] ieee802_11_parse_elems_full+0xdb/0x2880 net/mac80211/parse.c:958 ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2361 [inline] ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2368 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1575 [inline] ieee80211_ibss_rx_queued_mgmt+0x4c8/0x2d70 net/mac80211/ibss.c:1606 ieee80211_iface_process_skb net/mac80211/iface.c:1588 [inline] ieee80211_iface_work+0x8a5/0xf20 net/mac80211/iface.c:1642 cfg80211_wiphy_work+0x2db/0x490 net/wireless/core.c:440 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244