INFO: task jbd2/sda1-8:4502 blocked for more than 143 seconds. Not tainted 6.10.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:23056 pid:4502 tgid:4502 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 io_schedule+0x8d/0x110 kernel/sched/core.c:9043 bit_wait_io+0x12/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb2/0x2f0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x1d5/0x260 kernel/sched/wait_bit.c:64 wait_on_buffer include/linux/buffer_head.h:415 [inline] journal_wait_on_commit_record fs/jbd2/commit.c:171 [inline] jbd2_journal_commit_transaction+0x3d7f/0x6760 fs/jbd2/commit.c:887 kjournald2+0x463/0x850 fs/jbd2/journal.c:201 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz-executor.0:12219 blocked for more than 143 seconds. Not tainted 6.10.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:20912 pid:12219 tgid:12219 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 start_this_handle+0x55d/0x22a0 fs/jbd2/transaction.c:399 jbd2__journal_start+0x2da/0x5d0 fs/jbd2/transaction.c:520 __ext4_journal_start_sb+0x239/0x600 fs/ext4/ext4_jbd2.c:112 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline] ext4_dirty_inode+0x92/0x110 fs/ext4/inode.c:5932 __mark_inode_dirty+0x327/0xe20 fs/fs-writeback.c:2486 generic_update_time fs/inode.c:1907 [inline] inode_update_time fs/inode.c:1920 [inline] touch_atime+0x42c/0x670 fs/inode.c:1992 file_accessed include/linux/fs.h:2458 [inline] iterate_dir+0x704/0x820 fs/readdir.c:113 __do_sys_getdents64 fs/readdir.c:409 [inline] __se_sys_getdents64+0x20d/0x4f0 fs/readdir.c:394 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: 0033:0x7fb5dbca85a3 RSP: 002b:00007ffd2bf331f8 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 000055558d4a0930 RCX: 00007fb5dbca85a3 RDX: 0000000000008000 RSI: 000055558d4a0930 RDI: 0000000000000003 RBP: 000055558d4a0904 R08: 0000000000000000 R09: 7fffffffffffffff R10: 0000000000001000 R11: 0000000000000293 R12: ffffffffffffffb0 R13: 0000000000000016 R14: 000055558d4a0900 R15: 0000000000000005 INFO: task syz-executor.2:12946 blocked for more than 144 seconds. Not tainted 6.10.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:20288 pid:12946 tgid:12946 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 start_this_handle+0x55d/0x22a0 fs/jbd2/transaction.c:399 jbd2__journal_start+0x2da/0x5d0 fs/jbd2/transaction.c:520 __ext4_journal_start_sb+0x239/0x600 fs/ext4/ext4_jbd2.c:112 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline] ext4_dirty_inode+0x92/0x110 fs/ext4/inode.c:5932 __mark_inode_dirty+0x327/0xe20 fs/fs-writeback.c:2486 generic_update_time fs/inode.c:1907 [inline] inode_update_time fs/inode.c:1920 [inline] touch_atime+0x42c/0x670 fs/inode.c:1992 file_accessed include/linux/fs.h:2458 [inline] iterate_dir+0x704/0x820 fs/readdir.c:113 __do_sys_getdents64 fs/readdir.c:409 [inline] __se_sys_getdents64+0x20d/0x4f0 fs/readdir.c:394 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: 0033:0x7f76f7ca85a3 RSP: 002b:00007ffc201c8138 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 00005555914d7930 RCX: 00007f76f7ca85a3 RDX: 0000000000008000 RSI: 00005555914d7930 RDI: 0000000000000003 RBP: 00005555914d7904 R08: 0000000000000000 R09: 7fffffffffffffff R10: 0000000000001000 R11: 0000000000000293 R12: ffffffffffffffb0 R13: 0000000000000016 R14: 00005555914d7900 R15: 000000000000000c INFO: task syz-executor.5:14089 blocked for more than 145 seconds. Not tainted 6.10.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:24504 pid:14089 tgid:14088 ppid:13367 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 jbd2_log_wait_commit+0x29f/0x4a0 fs/jbd2/journal.c:697 jbd2_journal_flush+0x15c/0xc10 fs/jbd2/journal.c:2447 ext4_ioctl_checkpoint fs/ext4/ioctl.c:1099 [inline] __ext4_ioctl fs/ext4/ioctl.c:1606 [inline] ext4_ioctl+0x33cc/0x55a0 fs/ext4/ioctl.c:1626 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfe/0x170 fs/ioctl.c:893 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: 0033:0x7fe4ad47d0a9 RSP: 002b:00007fe4ae1d30c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe4ad5b3f80 RCX: 00007fe4ad47d0a9 RDX: 0000000020000000 RSI: 000000004004662b RDI: 0000000000000004 RBP: 00007fe4ad4ec074 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fe4ad5b3f80 R15: 00007fff4af8ec58 INFO: task syz-executor.3:14090 blocked for more than 146 seconds. Not tainted 6.10.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:25488 pid:14090 tgid:14090 ppid:13001 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 start_this_handle+0x55d/0x22a0 fs/jbd2/transaction.c:399 jbd2__journal_start+0x2da/0x5d0 fs/jbd2/transaction.c:520 __ext4_journal_start_sb+0x239/0x600 fs/ext4/ext4_jbd2.c:112 __ext4_new_inode+0x12dc/0x4390 fs/ext4/ialloc.c:1078 ext4_symlink+0x38d/0xb50 fs/ext4/namei.c:3395 vfs_symlink+0x139/0x2e0 fs/namei.c:4489 do_symlinkat+0x222/0x3a0 fs/namei.c:4515 __do_sys_symlinkat fs/namei.c:4531 [inline] __se_sys_symlinkat fs/namei.c:4528 [inline] __x64_sys_symlinkat+0x99/0xb0 fs/namei.c:4528 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: 0033:0x7f66ba07c827 RSP: 002b:00007ffe81722ca8 EFLAGS: 00000202 ORIG_RAX: 000000000000010a RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f66ba07c827 RDX: 00007f66ba0da804 RSI: 00000000ffffff9c RDI: 00007ffe81722d60 RBP: 0000000000000001 R08: 0000000000000017 R09: 00007ffe817229f7 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ffe81722d60 R15: 0000000000000001 Showing all locks held in the system: 5 locks held by kworker/u8:1/12: #0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8f5da6d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594 #3: ffffffff8f5e6f08 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 net/core/dev.c:11746 #4: ffffffff8e1ce5b0 (cpu_hotplug_lock){++++}-{0:0}, at: flush_all_backlogs net/core/dev.c:5984 [inline] #4: ffffffff8e1ce5b0 (cpu_hotplug_lock){++++}-{0:0}, at: unregister_netdevice_many_notify+0x607/0x16b0 net/core/dev.c:11201 1 lock held by khungtaskd/30: #0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 2 locks held by kworker/u8:2/35: 3 locks held by kworker/0:2/780: #0: ffff888015078948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888015078948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90003a4fd00 (deferred_process_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90003a4fd00 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8f5e6f08 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104 3 locks held by kworker/u8:6/2391: 2 locks held by getty/4851: #0: ffff88802a37f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211 3 locks held by syz-fuzzer/5080: #0: ffff88801f101748 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x310 fs/file.c:1191 #1: ffff8880520b8e00 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: iterate_dir+0x55b/0x820 fs/readdir.c:103 #2: ffff88802ec58420 (sb_writers#4){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2458 [inline] #2: ffff88802ec58420 (sb_writers#4){.+.+}-{0:0}, at: iterate_dir+0x704/0x820 fs/readdir.c:113 3 locks held by syz-fuzzer/5097: #0: ffff88801f100348 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x310 fs/file.c:1191 #1: ffff88805be95400 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: iterate_dir+0x55b/0x820 fs/readdir.c:103 #2: ffff88802ec58420 (sb_writers#4){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2458 [inline] #2: ffff88802ec58420 (sb_writers#4){.+.+}-{0:0}, at: iterate_dir+0x704/0x820 fs/readdir.c:113 3 locks held by syz-fuzzer/5815: #0: ffff88801f100d48 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x310 fs/file.c:1191 #1: ffff88805456de00 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: iterate_dir+0x55b/0x820 fs/readdir.c:103 #2: ffff88802ec58420 (sb_writers#4){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2458 [inline] #2: ffff88802ec58420 (sb_writers#4){.+.+}-{0:0}, at: iterate_dir+0x704/0x820 fs/readdir.c:113 3 locks held by kworker/0:3/5110: #0: ffff888015078948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888015078948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc9000320fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc9000320fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8f5e6f08 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276 3 locks held by kworker/u8:13/9870: #0: ffff88802a273948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff88802a273948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90004687d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90004687d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8f5e6f08 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4733 3 locks held by syz-executor.0/12219: #0: ffff88802d443748 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x310 fs/file.c:1191 #1: ffff88805440ac00 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: iterate_dir+0x55b/0x820 fs/readdir.c:103 #2: ffff88802ec58420 (sb_writers#4){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2458 [inline] #2: ffff88802ec58420 (sb_writers#4){.+.+}-{0:0}, at: iterate_dir+0x704/0x820 fs/readdir.c:113 3 locks held by syz-executor.2/12946: #0: ffff88802d442848 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x310 fs/file.c:1191 #1: ffff8880520ba200 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: iterate_dir+0x55b/0x820 fs/readdir.c:103 #2: ffff88802ec58420 (sb_writers#4){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2458 [inline] #2: ffff88802ec58420 (sb_writers#4){.+.+}-{0:0}, at: iterate_dir+0x704/0x820 fs/readdir.c:113 2 locks held by kworker/1:4/13485: 1 lock held by syz-executor.1/14014: #0: ffffffff8f5e6f08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f5e6f08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632 5 locks held by syz-executor.4/14027: 1 lock held by syz-executor.5/14089: #0: ffff88802ec5c160 (&journal->j_barrier){+.+.}-{3:3}, at: jbd2_journal_lock_updates+0x2b4/0x380 fs/jbd2/transaction.c:904 2 locks held by syz-executor.3/14090: #0: ffff88802ec58420 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:409 #1: ffff888076b72200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:826 [inline] #1: ffff888076b72200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3900 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 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:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xfde/0x1020 kernel/hung_task.c:379 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/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 PID: 14027 Comm: syz-executor.4 Not tainted 6.10.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:arch_stack_walk+0x128/0x1b0 arch/x86/kernel/stacktrace.c:27 Code: e8 9d af 09 00 8b 9d 70 ff ff ff 31 ff 89 de e8 ae b9 5e 00 85 db 74 4b 4c 8d bd 70 ff ff ff 4c 89 ff e8 fb 7d 09 00 48 89 c3 <31> ff 48 89 c6 e8 2e ba 5e 00 48 85 db 74 31 4c 89 f7 48 89 de 4d RSP: 0018:ffffc90000a176c0 EFLAGS: 00000046 RAX: ffffffff818381ad RBX: ffffffff818381ad RCX: ffff8880452d1e00 RDX: 0000000080010102 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000a17750 R08: ffffffff8140ee98 R09: ffffffff8141095f R10: 0000000000000003 R11: ffff8880452d1e00 R12: ffff8880452d1e00 R13: ffffffff8181de80 R14: ffffc90000a177a0 R15: ffffc90000a176c0 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c000b4d000 CR3: 000000000e132000 CR4: 0000000000350ef0 Call Trace: 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+0xe0/0x150 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:2196 [inline] slab_free mm/slub.c:4437 [inline] kfree+0x149/0x360 mm/slub.c:4558 dummy_timer+0x7ce/0x45d0 drivers/usb/gadget/udc/dummy_hcd.c:1981 __run_hrtimer kernel/time/hrtimer.c:1687 [inline] __hrtimer_run_queues+0x59d/0xd50 kernel/time/hrtimer.c:1751 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1813 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x112/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 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_cmp8+0x8/0x90 kernel/kcov.c:284 Code: 44 0a 20 e9 35 19 1a 0a 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 0c 25 c0 d4 03 00 65 8b 05 c0 ac 6d 7e a9 00 01 ff 00 74 RSP: 0018:ffffc90000a18180 EFLAGS: 00000202 RAX: 1ffff9200014304e RBX: ffffc90010eb8000 RCX: ffff8880452d1e00 RDX: ffff8880452d1e00 RSI: ffffc90010eb7ac0 RDI: ffffc90010eb7c30 RBP: ffffc90000a18260 R08: ffffffff81410de5 R09: ffffffff8141095f R10: 0000000000000003 R11: ffff8880452d1e00 R12: ffffc90010eb7c30 R13: dffffc0000000000 R14: ffffc90010eb0000 R15: ffffc90010eb7c38 on_stack arch/x86/include/asm/stacktrace.h:60 [inline] unwind_next_frame+0x1df5/0x2a00 arch/x86/kernel/unwind_orc.c:665 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 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object+0xe0/0x150 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:2196 [inline] slab_free mm/slub.c:4437 [inline] kmem_cache_free+0x145/0x350 mm/slub.c:4512 skb_kfree_head net/core/skbuff.c:1067 [inline] skb_free_head net/core/skbuff.c:1081 [inline] skb_release_data+0x64d/0x880 net/core/skbuff.c:1108 skb_release_all net/core/skbuff.c:1173 [inline] __kfree_skb net/core/skbuff.c:1187 [inline] kfree_skb_reason+0x1a3/0x3b0 net/core/skbuff.c:1223 __netif_receive_skb_core+0x3cc5/0x4420 net/core/dev.c:5599 __netif_receive_skb_one_core net/core/dev.c:5623 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5739 process_backlog+0x391/0x7d0 net/core/dev.c:6068 __napi_poll+0xcd/0x490 net/core/dev.c:6722 napi_poll net/core/dev.c:6791 [inline] net_rx_action+0x7bb/0x10a0 net/core/dev.c:6907 handle_softirqs+0x2c6/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x37/0x70 kernel/kcov.c:207 Code: c0 d4 03 00 65 8b 15 20 af 6d 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 1c 16 00 00 00 74 2c 8b 91 f8 15 00 00 <83> fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 48 8d 7e 01 8b 89 fc RSP: 0018:ffffc90010eb6a58 EFLAGS: 00000246 RAX: ffffffff81335d5f RBX: 0000000000000000 RCX: ffff8880452d1e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000040 RBP: dffffc0000000000 R08: ffffffff81335d50 R09: ffffc90010eb6b00 R10: dffffc0000000000 R11: fffff520021d6d6c R12: 0000000000000001 R13: ffff8880452d1e00 R14: ffffc90010eb6b20 R15: ffffc90010eb6b00 get_stack_info+0x6f/0x180 arch/x86/kernel/dumpstack_64.c:208 __unwind_start+0x481/0x7c0 arch/x86/kernel/unwind_orc.c:729 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0x103/0x1b0 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 save_stack+0xfb/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x75/0x3f0 mm/page_owner.c:297 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1088 [inline] free_unref_folios+0xf23/0x19e0 mm/page_alloc.c:2632 folios_put_refs+0x93a/0xa60 mm/swap.c:1024 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:329 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline] tlb_batch_pages_flush mm/mmu_gather.c:149 [inline] tlb_flush_mmu_free mm/mmu_gather.c:366 [inline] tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373 zap_pte_range mm/memory.c:1685 [inline] zap_pmd_range mm/memory.c:1724 [inline] zap_pud_range mm/memory.c:1753 [inline] zap_p4d_range mm/memory.c:1774 [inline] unmap_page_range+0x36f2/0x40f0 mm/memory.c:1795 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1885 exit_mmap+0x264/0xc80 mm/mmap.c:3341 __mmput+0x115/0x3c0 kernel/fork.c:1346 exit_mm+0x220/0x310 kernel/exit.c:565 do_exit+0x9aa/0x27e0 kernel/exit.c:861 do_group_exit+0x207/0x2c0 kernel/exit.c:1023 get_signal+0x16a1/0x1740 kernel/signal.c:2909 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0fcae7d0a9 Code: Unable to access opcode bytes at 0x7f0fcae7d07f. RSP: 002b:00007ffd7da1be38 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffff92 RBX: 00000000000e5f52 RCX: 00007f0fcae7d0a9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f0fcafb41fc RBP: 00000000000e6b3c R08: 7fffffffffffffff R09: 0000001700000000 R10: 00007ffd7da1bf20 R11: 0000000000000246 R12: 00007ffd7da1bf20 R13: 00007f0fcafb41fc R14: 0000000000000bea R15: 00007ffd7da1bf40