BUG: sleeping function called from invalid context at kernel/locking/mutex.c:935 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 19502, name: blkid 4 locks held by blkid/19502: #0: ffff88804d077698 (&mm->mmap_sem#2){++++}, at: do_user_addr_fault arch/x86/mm/fault.c:1382 [inline] #0: ffff88804d077698 (&mm->mmap_sem#2){++++}, at: __do_page_fault+0x33c/0xd80 arch/x86/mm/fault.c:1506 #1: ffffffff899a3f00 (rcu_read_lock){....}, at: filemap_map_pages+0x105/0x14e0 mm/filemap.c:2606 #2: ffff888074f5a8b0 (&(ptlock_ptr(page))->rlock#2){+.+.}, at: spin_lock include/linux/spinlock.h:338 [inline] #2: ffff888074f5a8b0 (&(ptlock_ptr(page))->rlock#2){+.+.}, at: pte_alloc_one_map mm/memory.c:3316 [inline] #2: ffff888074f5a8b0 (&(ptlock_ptr(page))->rlock#2){+.+.}, at: alloc_set_pte+0xc12/0x1800 mm/memory.c:3434 #3: ffffc90000007d50 ((&sp->resync_t)){+.-.}, at: lockdep_copy_map include/linux/lockdep.h:172 [inline] #3: ffffc90000007d50 ((&sp->resync_t)){+.-.}, at: call_timer_fn+0xe0/0x780 kernel/time/timer.c:1394 Preemption disabled at: [] spin_lock include/linux/spinlock.h:338 [inline] [] pte_alloc_one_map mm/memory.c:3316 [inline] [] alloc_set_pte+0xc12/0x1800 mm/memory.c:3434 CPU: 0 PID: 19502 Comm: blkid Not tainted 5.5.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 ___might_sleep.cold+0x1fb/0x23e kernel/sched/core.c:6800 __might_sleep+0x95/0x190 kernel/sched/core.c:6753 __mutex_lock_common kernel/locking/mutex.c:935 [inline] __mutex_lock+0xc5/0x13c0 kernel/locking/mutex.c:1103 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118 tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:122 resync_tnc+0x1b6/0x320 drivers/net/hamradio/6pack.c:522 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:155 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x20/0x50 kernel/kcov.c:187 Code: 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 65 48 8b 04 25 c0 1e 02 00 65 8b 15 f4 28 8d 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b <8b> 90 80 13 00 00 83 fa 02 75 20 48 8b 88 88 13 00 00 8b 80 84 13 RSP: 0000:ffffc900054d7b90 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff888053bd6540 RBX: 0000000000000007 RCX: ffffffff8192f0e4 RDX: 0000000000000000 RSI: ffffffff8192f0f2 RDI: 0000000000000005 RBP: ffffc900054d7b90 R08: ffff888053bd6540 R09: fffff940000552e9 R10: fffff940000552e8 R11: ffffea00002a9747 R12: ffffc900054d7c98 R13: 0000000000000000 R14: 0000000000000000 R15: ffffea00002a9740 __read_once_size include/linux/compiler.h:199 [inline] PageTail include/linux/page-flags.h:183 [inline] find_subpage include/linux/pagemap.h:341 [inline] filemap_map_pages+0x502/0x14e0 mm/filemap.c:2631 do_fault_around mm/memory.c:3598 [inline] do_read_fault mm/memory.c:3632 [inline] do_fault mm/memory.c:3766 [inline] handle_pte_fault mm/memory.c:3997 [inline] __handle_mm_fault+0x2de6/0x3cc0 mm/memory.c:4127 handle_mm_fault+0x3b2/0xa50 mm/memory.c:4164 do_user_addr_fault arch/x86/mm/fault.c:1441 [inline] __do_page_fault+0x536/0xd80 arch/x86/mm/fault.c:1506 do_page_fault+0x38/0x590 arch/x86/mm/fault.c:1530 page_fault+0x39/0x40 arch/x86/entry/entry_64.S:1203 RIP: 0033:0x7f23f8e4baad Code: 49 89 d5 ba 05 15 00 00 41 54 4d 89 c4 53 48 81 ec 18 01 00 00 48 89 8d 18 ff ff ff 48 89 bd 48 ff ff ff 44 89 8d 34 ff ff ff <0f> b6 07 48 89 f9 84 c0 74 2d 66 0f 1f 84 00 00 00 00 00 48 89 d3 RSP: 002b:00007ffedbbb0ca0 EFLAGS: 00010206 RAX: 00007f23f8899580 RBX: 00007f23f90609a8 RCX: 00007f23f9060d00 RDX: 0000000000001505 RSI: 00007f23f90609a8 RDI: 00007f23f889e966 RBP: 00007ffedbbb0de0 R08: 00007f23f905a868 R09: 0000000000000000 R10: 00007ffedbbb0c20 R11: 00007ffedbbb0c20 R12: 00007f23f905a868 R13: 00007ffedbbb0e98 R14: 00007f23f90609a8 R15: 0000000000001505 ================================ WARNING: inconsistent lock state 5.5.0-rc6-syzkaller #0 Tainted: G W -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. blkid/19502 [HC0[0]:SC1[1]:HE1:SE0] takes: ffffffff8c142710 (&tpk_port.port_write_mutex){+.?.}, at: tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:122 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4485 __mutex_lock_common kernel/locking/mutex.c:956 [inline] __mutex_lock+0x156/0x13c0 kernel/locking/mutex.c:1103 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118 tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:122 tnc_init drivers/net/hamradio/6pack.c:536 [inline] sixpack_open+0x8d6/0xaaf drivers/net/hamradio/6pack.c:632 tty_ldisc_open.isra.0+0xa3/0x110 drivers/tty/tty_ldisc.c:464 tty_set_ldisc+0x30e/0x6b0 drivers/tty/tty_ldisc.c:591 tiocsetd drivers/tty/tty_io.c:2337 [inline] tty_ioctl+0xe8d/0x14f0 drivers/tty/tty_io.c:2597 vfs_ioctl fs/ioctl.c:47 [inline] file_ioctl fs/ioctl.c:545 [inline] do_vfs_ioctl+0x977/0x14e0 fs/ioctl.c:732 ksys_ioctl+0xab/0xd0 fs/ioctl.c:749 __do_sys_ioctl fs/ioctl.c:756 [inline] __se_sys_ioctl fs/ioctl.c:754 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:754 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe irq event stamp: 3506 hardirqs last enabled at (3506): [] trace_hardirqs_on_thunk+0x1a/0x1c arch/x86/entry/thunk_64.S:41 hardirqs last disabled at (3505): [] trace_hardirqs_off_thunk+0x1a/0x1c arch/x86/entry/thunk_64.S:42 softirqs last enabled at (2766): [] __do_softirq+0x6cd/0x98c kernel/softirq.c:319 softirqs last disabled at (3369): [] invoke_softirq kernel/softirq.c:373 [inline] softirqs last disabled at (3369): [] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&tpk_port.port_write_mutex); lock(&tpk_port.port_write_mutex); *** DEADLOCK *** 4 locks held by blkid/19502: #0: ffff88804d077698 (&mm->mmap_sem#2){++++}, at: do_user_addr_fault arch/x86/mm/fault.c:1382 [inline] #0: ffff88804d077698 (&mm->mmap_sem#2){++++}, at: __do_page_fault+0x33c/0xd80 arch/x86/mm/fault.c:1506 #1: ffffffff899a3f00 (rcu_read_lock){....}, at: filemap_map_pages+0x105/0x14e0 mm/filemap.c:2606 #2: ffff888074f5a8b0 (&(ptlock_ptr(page))->rlock#2){+.+.}, at: spin_lock include/linux/spinlock.h:338 [inline] #2: ffff888074f5a8b0 (&(ptlock_ptr(page))->rlock#2){+.+.}, at: pte_alloc_one_map mm/memory.c:3316 [inline] #2: ffff888074f5a8b0 (&(ptlock_ptr(page))->rlock#2){+.+.}, at: alloc_set_pte+0xc12/0x1800 mm/memory.c:3434 #3: ffffc90000007d50 ((&sp->resync_t)){+.-.}, at: lockdep_copy_map include/linux/lockdep.h:172 [inline] #3: ffffc90000007d50 ((&sp->resync_t)){+.-.}, at: call_timer_fn+0xe0/0x780 kernel/time/timer.c:1394 stack backtrace: CPU: 0 PID: 19502 Comm: blkid Tainted: G W 5.5.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 print_usage_bug.cold+0x327/0x378 kernel/locking/lockdep.c:3101 valid_state kernel/locking/lockdep.c:3112 [inline] mark_lock_irq kernel/locking/lockdep.c:3309 [inline] mark_lock+0xbb4/0x1220 kernel/locking/lockdep.c:3666 mark_usage kernel/locking/lockdep.c:3566 [inline] __lock_acquire+0x1e8e/0x4a00 kernel/locking/lockdep.c:3909 lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4485 __mutex_lock_common kernel/locking/mutex.c:956 [inline] __mutex_lock+0x156/0x13c0 kernel/locking/mutex.c:1103 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118 tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:122 resync_tnc+0x1b6/0x320 drivers/net/hamradio/6pack.c:522 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:155 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x20/0x50 kernel/kcov.c:187 Code: 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 65 48 8b 04 25 c0 1e 02 00 65 8b 15 f4 28 8d 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b <8b> 90 80 13 00 00 83 fa 02 75 20 48 8b 88 88 13 00 00 8b 80 84 13 RSP: 0000:ffffc900054d7b90 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff888053bd6540 RBX: 0000000000000007 RCX: ffffffff8192f0e4 RDX: 0000000000000000 RSI: ffffffff8192f0f2 RDI: 0000000000000005 RBP: ffffc900054d7b90 R08: ffff888053bd6540 R09: fffff940000552e9 R10: fffff940000552e8 R11: ffffea00002a9747 R12: ffffc900054d7c98 R13: 0000000000000000 R14: 0000000000000000 R15: ffffea00002a9740 __read_once_size include/linux/compiler.h:199 [inline] PageTail include/linux/page-flags.h:183 [inline] find_subpage include/linux/pagemap.h:341 [inline] filemap_map_pages+0x502/0x14e0 mm/filemap.c:2631 do_fault_around mm/memory.c:3598 [inline] do_read_fault mm/memory.c:3632 [inline] do_fault mm/memory.c:3766 [inline] handle_pte_fault mm/memory.c:3997 [inline] __handle_mm_fault+0x2de6/0x3cc0 mm/memory.c:4127 handle_mm_fault+0x3b2/0xa50 mm/memory.c:4164 do_user_addr_fault arch/x86/mm/fault.c:1441 [inline] __do_page_fault+0x536/0xd80 arch/x86/mm/fault.c:1506 do_page_fault+0x38/0x590 arch/x86/mm/fault.c:1530 page_fault+0x39/0x40 arch/x86/entry/entry_64.S:1203 RIP: 0033:0x7f23f8e4baad Code: 49 89 d5 ba 05 15 00 00 41 54 4d 89 c4 53 48 81 ec 18 01 00 00 48 89 8d 18 ff ff ff 48 89 bd 48 ff ff ff 44 89 8d 34 ff ff ff <0f> b6 07 48 89 f9 84 c0 74 2d 66 0f 1f 84 00 00 00 00 00 48 89 d3 RSP: 002b:00007ffedbbb0ca0 EFLAGS: 00010206 RAX: 00007f23f8899580 RBX: 00007f23f90609a8 RCX: 00007f23f9060d00 RDX: 0000000000001505 RSI: 00007f23f90609a8 RDI: 00007f23f889e966 RBP: 00007ffedbbb0de0 R08: 00007f23f905a868 R09: 0000000000000000 R10: 00007ffedbbb0c20 R11: 00007ffedbbb0c20 R12: 00007f23f905a868 R13: 00007ffedbbb0e98 R14: 00007f23f90609a8 R15: 0000000000001505 BUG: sleeping function called from invalid context at kernel/locking/mutex.c:935 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 19502, name: blkid INFO: lockdep is turned off. Preemption disabled at: [] spin_lock include/linux/spinlock.h:338 [inline] [] pte_alloc_one_map mm/memory.c:3316 [inline] [] alloc_set_pte+0xc12/0x1800 mm/memory.c:3434 CPU: 0 PID: 19502 Comm: blkid Tainted: G W 5.5.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 ___might_sleep.cold+0x1fb/0x23e kernel/sched/core.c:6800 __might_sleep+0x95/0x190 kernel/sched/core.c:6753 __mutex_lock_common kernel/locking/mutex.c:935 [inline] __mutex_lock+0xc5/0x13c0 kernel/locking/mutex.c:1103 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118 tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:122 resync_tnc+0x22e/0x320 drivers/net/hamradio/6pack.c:523 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:155 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x20/0x50 kernel/kcov.c:187 Code: 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 65 48 8b 04 25 c0 1e 02 00 65 8b 15 f4 28 8d 7e 81 e2 00 01 1f 00 48 8b 75 08 75 2b <8b> 90 80 13 00 00 83 fa 02 75 20 48 8b 88 88 13 00 00 8b 80 84 13 RSP: 0000:ffffc900054d7b90 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff888053bd6540 RBX: 0000000000000007 RCX: ffffffff8192f0e4 RDX: 0000000000000000 RSI: ffffffff8192f0f2 RDI: 0000000000000005 RBP: ffffc900054d7b90 R08: ffff888053bd6540 R09: fffff940000552e9 R10: fffff940000552e8 R11: ffffea00002a9747 R12: ffffc900054d7c98 R13: 0000000000000000 R14: 0000000000000000 R15: ffffea00002a9740 __read_once_size include/linux/compiler.h:199 [inline] PageTail include/linux/page-flags.h:183 [inline] find_subpage include/linux/pagemap.h:341 [inline] filemap_map_pages+0x502/0x14e0 mm/filemap.c:2631 do_fault_around mm/memory.c:3598 [inline] do_read_fault mm/memory.c:3632 [inline] do_fault mm/memory.c:3766 [inline] handle_pte_fault mm/memory.c:3997 [inline] __handle_mm_fault+0x2de6/0x3cc0 mm/memory.c:4127 handle_mm_fault+0x3b2/0xa50 mm/memory.c:4164 do_user_addr_fault arch/x86/mm/fault.c:1441 [inline] __do_page_fault+0x536/0xd80 arch/x86/mm/fault.c:1506 do_page_fault+0x38/0x590 arch/x86/mm/fault.c:1530 page_fault+0x39/0x40 arch/x86/entry/entry_64.S:1203 RIP: 0033:0x7f23f8e4baad Code: 49 89 d5 ba 05 15 00 00 41 54 4d 89 c4 53 48 81 ec 18 01 00 00 48 89 8d 18 ff ff ff 48 89 bd 48 ff ff ff 44 89 8d 34 ff ff ff <0f> b6 07 48 89 f9 84 c0 74 2d 66 0f 1f 84 00 00 00 00 00 48 89 d3 RSP: 002b:00007ffedbbb0ca0 EFLAGS: 00010206 RAX: 00007f23f8899580 RBX: 00007f23f90609a8 RCX: 00007f23f9060d00 RDX: 0000000000001505 RSI: 00007f23f90609a8 RDI: 00007f23f889e966 RBP: 00007ffedbbb0de0 R08: 00007f23f905a868 R09: 0000000000000000 R10: 00007ffedbbb0c20 R11: 00007ffedbbb0c20 R12: 00007f23f905a868 R13: 00007ffedbbb0e98 R14: 00007f23f90609a8 R15: 0000000000001505 BUG: sleeping function called from invalid context at kernel/locking/mutex.c:935 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 20317, name: syz-executor.2 INFO: lockdep is turned off. Preemption disabled at: [] spin_lock include/linux/spinlock.h:338 [inline] [] zap_pte_range mm/memory.c:1038 [inline] [] zap_pmd_range mm/memory.c:1184 [inline] [] zap_pud_range mm/memory.c:1213 [inline] [] zap_p4d_range mm/memory.c:1234 [inline] [] unmap_page_range+0x885/0x28a0 mm/memory.c:1255 CPU: 0 PID: 20317 Comm: syz-executor.2 Tainted: G W 5.5.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 ___might_sleep.cold+0x1fb/0x23e kernel/sched/core.c:6800 __might_sleep+0x95/0x190 kernel/sched/core.c:6753 __mutex_lock_common kernel/locking/mutex.c:935 [inline] __mutex_lock+0xc5/0x13c0 kernel/locking/mutex.c:1103 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118 tpk_write+0x5d/0x340 drivers/char/ttyprintk.c:122 resync_tnc+0x1b6/0x320 drivers/net/hamradio/6pack.c:522 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:__sanitizer_cov_trace_const_cmp1+0xe/0x20 kernel/kcov.c:259 Code: 48 89 fe bf 06 00 00 00 48 89 e5 48 8b 4d 08 e8 18 ff ff ff 5d c3 66 0f 1f 44 00 00 55 40 0f b6 d6 40 0f b6 f7 bf 01 00 00 00 <48> 89 e5 48 8b 4d 08 e8 f6 fe ff ff 5d c3 0f 1f 40 00 55 0f b7 d6 RSP: 0018:ffffc90001ff7658 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000dfac000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90001ff76a8 R08: ffff8880952c6300 R09: fffff940002e8da1 R10: fffff940002e8da0 R11: ffffea0001746d07 R12: ffffea0001746d00 R13: 0000000000000000 R14: ffffea0001746d08 R15: dead000000000100 zap_pte_range mm/memory.c:1080 [inline] zap_pmd_range mm/memory.c:1184 [inline] zap_pud_range mm/memory.c:1213 [inline] zap_p4d_range mm/memory.c:1234 [inline] unmap_page_range+0xde0/0x28a0 mm/memory.c:1255 unmap_single_vma+0x19d/0x300 mm/memory.c:1300 unmap_vmas+0x184/0x2f0 mm/memory.c:1332 exit_mmap+0x2ba/0x530 mm/mmap.c:3134 __mmput kernel/fork.c:1082 [inline] mmput+0x179/0x4d0 kernel/fork.c:1103 copy_process+0x5470/0x7230 kernel/fork.c:2315 _do_fork+0x146/0x1090 kernel/fork.c:2421 __do_sys_clone3+0x1fb/0x340 kernel/fork.c:2729 __se_sys_clone3 kernel/fork.c:2713 [inline] __x64_sys_clone3+0x54/0x80 kernel/fork.c:2713 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45aff9 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f3524684c78 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f35246856d4 RCX: 000000000045aff9 RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000020001680 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000071 R14: 00000000004c17ad R15: 000000000075bf2c