INFO: task syz-executor.2:26049 blocked for more than 143 seconds.
      Not tainted 6.7.0-syzkaller-06082-g22d29f1112c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:23824 pid:26049 tgid:26049 ppid:23645  flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 wb_wait_for_completion+0x1ae/0x270 fs/fs-writeback.c:192
 __writeback_inodes_sb_nr+0x1d8/0x270 fs/fs-writeback.c:2672
 try_to_writeback_inodes_sb+0x97/0xc0 fs/fs-writeback.c:2720
 ext4_nonda_switch+0x1a9/0x1f0 fs/ext4/inode.c:2846
 ext4_da_write_begin+0x16e/0x8c0 fs/ext4/inode.c:2873
 generic_perform_write+0x278/0x600 mm/filemap.c:3928
 ext4_buffered_write_iter+0x11f/0x3c0 fs/ext4/file.c:299
 ext4_file_write_iter+0x819/0x1950 fs/ext4/file.c:698
 __kernel_write_iter+0x261/0x7b0 fs/read_write.c:523
 dump_emit_page fs/coredump.c:888 [inline]
 dump_user_range+0x299/0x790 fs/coredump.c:915
 elf_core_dump+0x2706/0x3900 fs/binfmt_elf.c:2077
 do_coredump+0x2c3b/0x3f70 fs/coredump.c:764
 get_signal+0x242f/0x2790 kernel/signal.c:2879
 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 irqentry_exit_to_user_mode+0x145/0x290 kernel/entry/common.c:225
 asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:564
RIP: 0033:0x7faa4c07cd31
RSP: 002b:00000000200004c0 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007faa4c1abf80 RCX: 00007faa4c07cd29
RDX: 0000000020000500 RSI: 00000000200004c0 RDI: 0000000080300400
RBP: 00007faa4c0c947a R08: 0000000020000580 R09: 0000000020000580
R10: 0000000020000540 R11: 0000000000000206 R12: 0000000000000000
R13: 000000000000000b R14: 00007faa4c1abf80 R15: 00007fff725aa208
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.7.0-syzkaller-06082-g22d29f1112c8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x299/0x300 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+0xf87/0x1210 kernel/hung_task.c:379
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 24499 Comm: kworker/u4:46 Not tainted 6.7.0-syzkaller-06082-g22d29f1112c8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:rol32 include/linux/bitops.h:126 [inline]
RIP: 0010:jhash2 include/linux/jhash.h:129 [inline]
RIP: 0010:hash_stack lib/stackdepot.c:434 [inline]
RIP: 0010:stack_depot_save_flags+0xbf/0x730 lib/stackdepot.c:505
Code: 01 e8 44 01 c8 44 31 c1 45 89 c8 41 89 c9 41 29 c8 01 c1 41 c1 c1 06 45 31 c1 45 89 c8 44 29 c8 41 01 c9 41 c1 c0 08 44 31 c0 <41> 89 c0 29 c1 44 01 c8 41 c1 c0 10 44 31 c1 8d 2c 01 41 89 c8 41
RSP: 0018:ffffc90009d07188 EFLAGS: 00000286
RAX: 000000009e05a3ac RBX: 0000000000000003 RCX: 0000000075e9bbf1
RDX: ffffffff81004c91 RSI: ffffc90009d07230 RDI: 0000000000000012
RBP: 00000000811aa601 R08: 0000000005c91f30 R09: 00000000a5ef8510
R10: 0000000000000000 R11: ffff8880b9829a18 R12: ffffc90009d071e8
R13: 0000000000000012 R14: 0000000000000012 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f34b9d78198 CR3: 000000007a46f000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 kasan_save_stack+0x42/0x50 mm/kasan/common.c:48
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:634
 poison_slab_object mm/kasan/common.c:241 [inline]
 __kasan_slab_free+0x121/0x1b0 mm/kasan/common.c:257
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2121 [inline]
 slab_free mm/slub.c:4299 [inline]
 kfree+0x124/0x360 mm/slub.c:4409
 ieee80211_inform_bss+0xb2f/0x1150 net/mac80211/scan.c:160
 rdev_inform_bss+0xea/0x430 net/wireless/rdev-ops.h:418
 cfg80211_inform_single_bss_frame_data+0x964/0x12c0 net/wireless/scan.c:3037
 cfg80211_inform_bss_frame_data+0x14c/0x350 net/wireless/scan.c:3068
 ieee80211_bss_info_update+0x311/0xab0 net/mac80211/scan.c:226
 ieee80211_rx_bss_info net/mac80211/ibss.c:1098 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1577 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x1973/0x30e0 net/mac80211/ibss.c:1604
 ieee80211_iface_process_skb net/mac80211/iface.c:1589 [inline]
 ieee80211_iface_work+0xa67/0xda0 net/mac80211/iface.c:1643
 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:437
 process_one_work+0x886/0x15d0 kernel/workqueue.c:2633
 process_scheduled_works kernel/workqueue.c:2706 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2787
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>