------------[ cut here ]------------ WARNING: fs/namespace.c:1375 at cleanup_mnt+0x33f/0x430, CPU#1: syz-executor.0/277 Modules linked in: CPU: 1 UID: 0 PID: 277 Comm: syz-executor.0 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:cleanup_mnt+0x33f/0x430 Code: c7 a0 45 d1 85 e8 01 7c fa 02 49 8d 7d 40 5b 48 c7 c6 10 e2 be 81 5d 41 5c 41 5d 41 5e 41 5f e9 57 b3 9c ff e8 82 46 b4 ff 90 <0f> 0b 90 e9 e6 fc ff ff e8 74 46 b4 ff 4c 89 ef e8 6c d7 06 00 e9 RSP: 0018:ffff88800f5ffe20 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81bf9de5 RDX: ffff888017543700 RSI: ffffffff81bfa0fe RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888017543fd8 R13: ffff888017178540 R14: 0000000000000001 R15: ffff888017178580 FS: 00005555557da400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff1b93af48 CR3: 0000000033a14000 CR4: 0000000000350ef0 Call Trace: task_work_run+0x172/0x280 exit_to_user_mode_loop+0xef/0x110 do_syscall_64+0x2f7/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4cf0d19f87 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff1b93b688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f4cf0d19f87 RDX: 00007fff1b93b759 RSI: 000000000000000a RDI: 00007fff1b93b750 RBP: 00007fff1b93b750 R08: 00000000ffffffff R09: 00007fff1b93b520 R10: 00005555557dbc7b R11: 0000000000000246 R12: 00007f4cf0d72105 R13: 00007fff1b93c810 R14: 00005555557dbc20 R15: 00007fff1b93c850 irq event stamp: 171399 hardirqs last enabled at (171407): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (171416): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (171342): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (171337): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- loop7: detected capacity change from 0 to 128 loop1: detected capacity change from 0 to 128 loop0: detected capacity change from 0 to 128 loop6: detected capacity change from 0 to 128 loop4: detected capacity change from 0 to 512 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 279 Comm: syz-executor.1 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__queue_work+0x202/0x1240 Code: 48 8b 6d 00 e8 4f 9e 79 03 31 ff 41 89 c5 89 c6 e8 93 f3 31 00 45 85 ed 0f 85 e1 05 00 00 e8 55 f8 31 00 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 a0 0e 00 00 4c 8b 75 00 48 89 df 4c 89 34 24 RSP: 0018:ffff88801c48f6b0 EFLAGS: 00010056 RAX: 0000000000000000 RBX: ffff88804161c718 RCX: ffffffff8141f51d RDX: ffff88800f89b700 RSI: ffffffff8141ef2b RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff0f11ef4 R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000001 R15: ffff88801960c000 FS: 0000555562562400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3327144000 CR3: 0000000036a36000 CR4: 0000000000350ef0 Call Trace: queue_work_on+0xd0/0xe0 loop_queue_rq+0x5c8/0x1180 __blk_mq_issue_directly+0xd5/0x260 blk_mq_request_issue_directly+0x11c/0x1e0 blk_mq_issue_direct+0x192/0x640 blk_mq_dispatch_queue_requests+0x4b0/0x7c0 blk_mq_flush_plug_list+0x1ec/0x5b0 __blk_flush_plug+0x25c/0x460 __submit_bio+0x480/0x5b0 submit_bio_noacct_nocheck+0x68e/0xcb0 submit_bio_noacct+0x359/0x1350 __sync_dirty_buffer+0x176/0x380 fat_set_state+0x22f/0x360 fat_put_super+0x3f/0xc0 generic_shutdown_super+0x15a/0x4a0 kill_block_super+0x3b/0x90 deactivate_locked_super+0xbf/0x1a0 deactivate_super+0xb1/0xd0 cleanup_mnt+0x2df/0x430 task_work_run+0x172/0x280 exit_to_user_mode_loop+0xef/0x110 do_syscall_64+0x2f7/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7feb68850f87 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe82dd2df8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 000000000000000b RCX: 00007feb68850f87 RDX: 00007ffe82dd2ec9 RSI: 000000000000000a RDI: 00007ffe82dd2ec0 RBP: 00007ffe82dd2ec0 R08: 00000000ffffffff R09: 00007ffe82dd2c90 R10: 0000555562563c7b R11: 0000000000000246 R12: 00007feb688a9105 R13: 00007ffe82dd3f80 R14: 0000555562563c20 R15: 00007ffe82dd3fc0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__queue_work+0x202/0x1240 Code: 48 8b 6d 00 e8 4f 9e 79 03 31 ff 41 89 c5 89 c6 e8 93 f3 31 00 45 85 ed 0f 85 e1 05 00 00 e8 55 f8 31 00 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 a0 0e 00 00 4c 8b 75 00 48 89 df 4c 89 34 24 RSP: 0018:ffff88801c48f6b0 EFLAGS: 00010056 RAX: 0000000000000000 RBX: ffff88804161c718 RCX: ffffffff8141f51d RDX: ffff88800f89b700 RSI: ffffffff8141ef2b RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff0f11ef4 R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000001 R15: ffff88801960c000 FS: 0000555562562400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3327144000 CR3: 0000000036a36000 CR4: 0000000000350ef0 note: syz-executor.1[279] exited with irqs disabled note: syz-executor.1[279] exited with preempt_count 1 ------------[ cut here ]------------ WARNING: kernel/exit.c:898 at do_exit+0x1c36/0x2970, CPU#1: syz-executor.1/279 Modules linked in: CPU: 1 UID: 0 PID: 279 Comm: syz-executor.1 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_exit+0x1c36/0x2970 Code: 96 0a 00 00 c7 43 18 00 00 00 00 e9 21 e6 ff ff e8 bf a4 38 00 bf 02 24 00 00 e8 f5 ab 0b 00 e9 41 ff ff ff e8 ab a4 38 00 90 <0f> 0b 90 e9 87 e4 ff ff e8 9d a4 38 00 4c 89 e6 bf 05 06 00 00 e8 RSP: 0018:ffff88801c48fe40 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffffffff813b2727 RDX: ffff88800f89b700 RSI: ffffffff813b42d5 RDI: ffff88800f89c8e8 RBP: ffff88800f89b700 R08: 0000000000000001 R09: fffffbfff0f11cd8 R10: 0000000000000200 R11: 0000000000000001 R12: 000000000000000b R13: 0000000000002710 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000555562562400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3327144000 CR3: 0000000036a36000 CR4: 0000000000350ef0 Call Trace: make_task_dead+0x174/0x3b0 rewind_stack_and_make_dead+0x16/0x20 RIP: 0033:0x7feb68850f87 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe82dd2df8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 000000000000000b RCX: 00007feb68850f87 RDX: 00007ffe82dd2ec9 RSI: 000000000000000a RDI: 00007ffe82dd2ec0 RBP: 00007ffe82dd2ec0 R08: 00000000ffffffff R09: 00007ffe82dd2c90 R10: 0000555562563c7b R11: 0000000000000246 R12: 00007feb688a9105 R13: 00007ffe82dd3f80 R14: 0000555562563c20 R15: 00007ffe82dd3fc0 irq event stamp: 168372 hardirqs last enabled at (168371): [] ktime_get+0x1c7/0x270 hardirqs last disabled at (168372): [] _raw_spin_lock_irq+0x42/0x50 softirqs last enabled at (168216): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (168211): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:51 in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 279, name: syz-executor.1 preempt_count: 0, expected: 0 RCU nest depth: 2, expected: 0 INFO: lockdep is turned off. CPU: 1 UID: 0 PID: 279 Comm: syz-executor.1 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xfa/0x120 __might_resched+0x2f3/0x510 exit_signals+0x25/0x940 do_exit+0x2db/0x2970 make_task_dead+0x174/0x3b0 rewind_stack_and_make_dead+0x16/0x20 RIP: 0033:0x7feb68850f87 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe82dd2df8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 000000000000000b RCX: 00007feb68850f87 RDX: 00007ffe82dd2ec9 RSI: 000000000000000a RDI: 00007ffe82dd2ec0 RBP: 00007ffe82dd2ec0 R08: 00000000ffffffff R09: 00007ffe82dd2c90 R10: 0000555562563c7b R11: 0000000000000246 R12: 00007feb688a9105 R13: 00007ffe82dd3f80 R14: 0000555562563c20 R15: 00007ffe82dd3fc0 loop6: detected capacity change from 0 to 128 EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. ext4 filesystem being mounted at /syzkaller-testdir904158350/syzkaller.3Atvdv/4/file0 supports timestamps until 2038-01-19 (0x7fffffff) BUG: unable to handle page fault for address: ffffffff857474f6 #PF: supervisor write access in kernel mode #PF: error_code(0x0003) - permissions violation PGD 5a8b067 P4D 5a8b067 PUD 5a8c063 PMD 80000000056001a1 Oops: Oops: 0003 [#2] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 279 Comm: syz-executor.1 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__blk_flush_plug+0x128/0x460 Code: 6c 24 58 49 8b 56 30 80 38 00 0f 85 03 03 00 00 48 8d 7a 08 4d 8b 66 38 48 89 f9 48 c1 e9 03 42 80 3c 39 00 0f 85 02 03 00 00 <48> 89 5a 08 48 89 54 24 58 4c 89 e2 48 c1 ea 03 42 80 3c 3a 00 0f RSP: 0018:ffff88801c48f8c0 EFLAGS: 00010246 RAX: ffffed1003891f6a RBX: ffff88801c48f918 RCX: 1ffffffff0ae8e9e RDX: ffffffff857474ee RSI: ffffffff8238e087 RDI: ffffffff857474f6 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: ffffffff8643ac57 R11: 0000000000000000 R12: ffffffff81522000 R13: ffff88801c48f918 R14: ffff88801c48fb18 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff857474f6 CR3: 0000000044f34000 CR4: 0000000000350ef0 Call Trace: schedule+0x2b9/0x390 schedule_preempt_disabled+0x10/0x20 __mutex_lock+0x813/0x1020 exp_funnel_lock+0x2c7/0x5c0 synchronize_rcu_expedited+0x27e/0x420 namespace_unlock+0x4b6/0x810 put_mnt_ns+0xf5/0x120 free_nsproxy+0x3a/0x400 switch_task_namespaces+0xe2/0x100 do_exit+0x841/0x2970 make_task_dead+0x174/0x3b0 rewind_stack_and_make_dead+0x16/0x20 RIP: 0033:0x7feb68850f87 Code: Unable to access opcode bytes at 0x7feb68850f5d. RSP: 002b:00007ffe82dd2df8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 000000000000000b RCX: 00007feb68850f87 RDX: 00007ffe82dd2ec9 RSI: 000000000000000a RDI: 00007ffe82dd2ec0 RBP: 00007ffe82dd2ec0 R08: 00000000ffffffff R09: 00007ffe82dd2c90 R10: 0000555562563c7b R11: 0000000000000246 R12: 00007feb688a9105 R13: 00007ffe82dd3f80 R14: 0000555562563c20 R15: 00007ffe82dd3fc0 Modules linked in: CR2: ffffffff857474f6 ---[ end trace 0000000000000000 ]--- RIP: 0010:__queue_work+0x202/0x1240 Code: 48 8b 6d 00 e8 4f 9e 79 03 31 ff 41 89 c5 89 c6 e8 93 f3 31 00 45 85 ed 0f 85 e1 05 00 00 e8 55 f8 31 00 48 89 e8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 a0 0e 00 00 4c 8b 75 00 48 89 df 4c 89 34 24 RSP: 0018:ffff88801c48f6b0 EFLAGS: 00010056 RAX: 0000000000000000 RBX: ffff88804161c718 RCX: ffffffff8141f51d RDX: ffff88800f89b700 RSI: ffffffff8141ef2b RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff0f11ef4 R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000000000000001 R15: ffff88801960c000 FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff857474f6 CR3: 0000000044f34000 CR4: 0000000000350ef0 note: syz-executor.1[279] exited with irqs disabled Fixing recursive fault but reboot is needed! BUG: scheduling while atomic: syz-executor.1/279/0x00000000 INFO: lockdep is turned off. Modules linked in: CPU: 0 UID: 0 PID: 279 Comm: syz-executor.1 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xfa/0x120 __schedule_bug+0xb9/0x100 __schedule+0x24f3/0x3590 do_task_dead+0xdc/0x110 make_task_dead+0x373/0x3b0 rewind_stack_and_make_dead+0x16/0x20 RIP: 0033:0x7feb68850f87 Code: Unable to access opcode bytes at 0x7feb68850f5d. RSP: 002b:00007ffe82dd2df8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 000000000000000b RCX: 00007feb68850f87 RDX: 00007ffe82dd2ec9 RSI: 000000000000000a RDI: 00007ffe82dd2ec0 RBP: 00007ffe82dd2ec0 R08: 00000000ffffffff R09: 00007ffe82dd2c90 R10: 0000555562563c7b R11: 0000000000000246 R12: 00007feb688a9105 R13: 00007ffe82dd3f80 R14: 0000555562563c20 R15: 00007ffe82dd3fc0 ------------[ cut here ]------------ Voluntary context switch within RCU read-side critical section! WARNING: kernel/rcu/tree_plugin.h:332 at rcu_note_context_switch+0xa96/0x1b00, CPU#0: syz-executor.1/279 Modules linked in: CPU: 0 UID: 0 PID: 279 Comm: syz-executor.1 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:rcu_note_context_switch+0xa96/0x1b00 Code: 00 00 00 65 48 8b 3d 41 8c 27 06 e8 84 11 fd ff e9 1a f8 ff ff c6 05 9a 42 e4 04 01 90 48 c7 c7 a0 8a c9 84 e8 0b 39 dd ff 90 <0f> 0b 90 90 e9 3a f6 ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea RSP: 0018:ffff88801c48fd38 EFLAGS: 00010082 RAX: 0000000000000000 RBX: ffff88806ce37d00 RCX: ffffffff8139de70 RDX: ffff88800f89b700 RSI: ffffffff8139de7e RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9c4801 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800f89b700 R13: 0000000000000000 R14: ffff88800f89b700 R15: ffffffff84c5d520 FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff857474f6 CR3: 0000000044f34000 CR4: 0000000000350ef0 Call Trace: __schedule+0x217/0x3590 do_task_dead+0xdc/0x110 make_task_dead+0x373/0x3b0 rewind_stack_and_make_dead+0x16/0x20 RIP: 0033:0x7feb68850f87 Code: Unable to access opcode bytes at 0x7feb68850f5d. RSP: 002b:00007ffe82dd2df8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 000000000000000b RCX: 00007feb68850f87 RDX: 00007ffe82dd2ec9 RSI: 000000000000000a RDI: 00007ffe82dd2ec0 RBP: 00007ffe82dd2ec0 R08: 00000000ffffffff R09: 00007ffe82dd2c90 R10: 0000555562563c7b R11: 0000000000000246 R12: 00007feb688a9105 R13: 00007ffe82dd3f80 R14: 0000555562563c20 R15: 00007ffe82dd3fc0 irq event stamp: 168372 hardirqs last enabled at (168371): [] ktime_get+0x1c7/0x270 hardirqs last disabled at (168372): [] _raw_spin_lock_irq+0x42/0x50 softirqs last enabled at (168216): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (168211): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 48 8b 6d 00 mov 0x0(%rbp),%rbp 4: e8 4f 9e 79 03 callq 0x3799e58 9: 31 ff xor %edi,%edi b: 41 89 c5 mov %eax,%r13d e: 89 c6 mov %eax,%esi 10: e8 93 f3 31 00 callq 0x31f3a8 15: 45 85 ed test %r13d,%r13d 18: 0f 85 e1 05 00 00 jne 0x5ff 1e: e8 55 f8 31 00 callq 0x31f878 23: 48 89 e8 mov %rbp,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction 2f: 0f 85 a0 0e 00 00 jne 0xed5 35: 4c 8b 75 00 mov 0x0(%rbp),%r14 39: 48 89 df mov %rbx,%rdi 3c: 4c 89 34 24 mov %r14,(%rsp)