INFO: task kworker/0:0:7 blocked for more than 143 seconds. Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:0 state:D stack:20592 pid:7 tgid:7 ppid:2 flags:0x00004000 Workqueue: gfs2_recovery gfs2_recover_func Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x1781/0x49d0 kernel/sched/core.c:6736 __schedule_loop kernel/sched/core.c:6813 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6828 io_schedule+0x8d/0x110 kernel/sched/core.c:9034 folio_wait_bit_common+0x882/0x12b0 mm/filemap.c:1283 folio_wait_locked include/linux/pagemap.h:1123 [inline] gfs2_jhead_process_page+0x194/0x750 fs/gfs2/lops.c:470 gfs2_find_jhead+0x9c9/0xf10 fs/gfs2/lops.c:576 gfs2_recover_func+0x6c1/0x1f20 fs/gfs2/recovery.c:460 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416 kthread+0x2f0/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 INFO: task syz-executor.4:5639 blocked for more than 143 seconds. Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:20528 pid:5639 tgid:5635 ppid:5102 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x1781/0x49d0 kernel/sched/core.c:6736 __schedule_loop kernel/sched/core.c:6813 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6828 bit_wait+0x12/0xd0 kernel/sched/wait_bit.c:199 __wait_on_bit+0xb0/0x2f0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x1d5/0x260 kernel/sched/wait_bit.c:64 wait_on_bit include/linux/wait_bit.h:76 [inline] gfs2_recover_journal+0xf2/0x160 fs/gfs2/recovery.c:577 init_journal+0x1845/0x23f0 fs/gfs2/ops_fstype.c:831 init_inodes+0xdc/0x320 fs/gfs2/ops_fstype.c:884 gfs2_fill_super+0x1edb/0x26c0 fs/gfs2/ops_fstype.c:1263 get_tree_bdev+0x3f7/0x570 fs/super.c:1614 gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1341 vfs_get_tree+0x90/0x2a0 fs/super.c:1779 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f3c4727f4aa RSP: 002b:00007f3c4809fef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f3c4809ff80 RCX: 00007f3c4727f4aa RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007f3c4809ff40 RBP: 0000000020037f40 R08: 00007f3c4809ff80 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020037f80 R13: 00007f3c4809ff40 R14: 0000000000037f9b R15: 0000000020000000 Showing all locks held in the system: 2 locks held by kworker/0:0/7: #0: ffff888016696148 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline] #0: ffff888016696148 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x1770 kernel/workqueue.c:3335 #1: ffffc900000c7d00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline] #1: ffffc900000c7d00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x1770 kernel/workqueue.c:3335 1 lock held by khungtaskd/29: #0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline] #0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline] #0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 3 locks held by kworker/u8:5/986: 2 locks held by getty/4815: #0: ffff88802aa3d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201 1 lock held by syz-executor.4/5639: #0: ffff8880965de0e0 (&type->s_umount_key#67/1){+.+.}-{3:3}, at: alloc_super+0x221/0x9d0 fs/super.c:343 4 locks held by syz-executor.1/5680: 1 lock held by syz-executor.2/7581: 1 lock held by syz-executor.0/9924: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 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:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xfb0/0xff0 kernel/hung_task.c:379 kthread+0x2f0/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 11 Comm: kworker/u8:1 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline] RIP: 0010:write_comp_data kernel/kcov.c:235 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x90 kernel/kcov.c:304 Code: 44 0a 20 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 <65> 48 8b 14 25 40 d0 03 00 65 8b 05 a0 d7 6e 7e a9 00 01 ff 00 74 RSP: 0018:ffffc90000106a18 EFLAGS: 00000246 RAX: ffffffff8140c5df RBX: 0000000000000001 RCX: ffff88801729bc00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000106ab0 R08: ffffffff813726e2 R09: ffffffff8140a8df R10: 0000000000000003 R11: ffff88801729bc00 R12: ffff88801729bc00 R13: ffffffff8180dfa0 R14: ffffc90000106b00 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c023cf9020 CR3: 000000002a646000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unwind_done arch/x86/include/asm/unwind.h:50 [inline] arch_stack_walk+0x112/0x1b0 arch/x86/kernel/stacktrace.c:24 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 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object+0xa6/0xe0 mm/kasan/common.c:240 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2106 [inline] slab_free mm/slub.c:4280 [inline] kfree+0x14a/0x380 mm/slub.c:4390 ieee80211_inform_bss+0xbb2/0x1080 net/mac80211/scan.c:160 rdev_inform_bss net/wireless/rdev-ops.h:418 [inline] cfg80211_inform_single_bss_data+0xfe9/0x2250 net/wireless/scan.c:2268 cfg80211_inform_bss_data+0x3e3/0x57d0 net/wireless/scan.c:3067 cfg80211_inform_bss_frame_data+0x3ac/0x700 net/wireless/scan.c:3157 ieee80211_bss_info_update+0x8a5/0xbc0 net/mac80211/scan.c:226 ieee80211_rx_bss_info net/mac80211/ibss.c:1099 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1578 [inline] ieee80211_ibss_rx_queued_mgmt+0x1952/0x2d50 net/mac80211/ibss.c:1605 ieee80211_iface_process_skb net/mac80211/iface.c:1605 [inline] ieee80211_iface_work+0x8a3/0xf10 net/mac80211/iface.c:1659 cfg80211_wiphy_work+0x221/0x260 net/wireless/core.c:437 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416 kthread+0x2f0/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243